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1. Identification of genetic risk loci and causal insights associated with Parkinson's disease in African and African admixed populations: a genome-wide association study

Author

Okubadejo, Njideka, Ojo, Oluwadamilola, Abiodun, Oladunni, Achoru, Charles, Agabi, Osigwe, Agulanna, Uchechi, Akinyemi, Rufus, Ali, Mohammed, Ani-Osheku, Ifeyinwa, Arigbodi, Ohwotemu, Bello, Abiodun, Erameh, Cyril, Farombi, Temitope, Fawale, Michael, Imarhiagbe, Frank, Iwuozo, Emmanuel, Komolafe, Morenikeji, Nwani, Paul, Nwazor, Ernest, Nyandaiti, Yakub, Obiabo, Yahaya, Odeniyi, Olanike, Odiase, Francis, Ojini, Francis, Onwuegbuzie, Gerald, Osaigbovo, Godwin, Osemwegie, Nosakhare, Oshinaike, Olajumoke, Otubogun, Folajimi, Oyakhire, Shyngle, Ozomma, Simon, Samuel, Sarah, Taiwo, Funmilola, Wahab, Kolawole, Zubair, Yusuf, Gams Massi, Daniel, Gueumekane Bila lamou, Eric, Njamnshi Nfor, Leonard, Magnerou, Mélanie Annick, Fogang Fogoum, Yannick, Shalash, Ali, El-FawaI, Hassan, Khedr, Eman, Fawi, Gharib, A. Eltantawi, Mohamed, Salama, Mohamed, El-Jaafary, Shaimaa, Hamed, Sharifa, Tafesse Mengesha, Abenet, Alemayehu Ayele, Biniyam, Melka Oda, Dereje, Zenebe Zewde, Yared, Debebe Gelan, Yohanesse, AkpaIu, Albert, Charway-Felli, Augustina, Stephen Sarfo, Fred, Adjei, Patrick, Obese, Vida, Bocoum, Abdoulaye, Koita, Abdou, Oumar Guinto, Cheick, Coulibaly, Toumany, Maiga, Youssoufa, Kone, Zaynab, Bell, Abiodun, Adebowale, Akintunde A., Akpekpe, John, lyagba, Alagoma, Wulgo, Ali Mohammed, Arabambi, Babawale, Agu, Christian, Dike, Franklin, Ishola, Ismail, Abiodun, Kehinde, Ekenze, Oluchi, Agabi Osigwe, Paul, Balarabe, Salisu, Abubakar, Sani, Williams, Uduak, Fall, Maouly, Mamadou Diop, Alassane, Hilaire Dominique, Ewodo Touna, Mochan, Andre, Modi, Girish, Dindayal, Saiesha, Ali Awadelkareem, Eman, Elsayed, Inas, Dahawi, Maha, Awadelkareem, Mosab Ali, Misbah, Sarah, Mushengez, Brighton, Kimambo, Henrika, Msango, Leonard, Adebayo, Philip, OKeng, Kigocha, Diekker, Marieke, URassa, Sarah, Gouider, Riadh, Ben Djebara, Mouna, Gargouri, Amina, Kacem, Imen, Nasri, Amina, Mrabet, Saloua, Sghaier, Ikram, Mkada, Imen, Atadzhanov, Masharip, Chishimba, Lorraine, Rizig, Mie, Jama, Fatumah, Okunoye, Olaitan, Hardy, John, Houlden, Henry, Singleton, Andrew, Nalls, Mike, Shamim, Ejaz, Jonas, Cabell, Williamson, Jared, Hall, Deborah A., Rosenbaum, Marc, Davis, Staci, Dean, Marissa, Cromer, Candace, Smith, Jenna, Ruffrage, Lauren, Richardson, Joseph, Sipma, Rebeka, Xie, Tao, Padmanaban, Manesh, Warren, Natalie, Mercado, Tomas, Disbrow, Elizabeth, Chauppeta, Brian, Thomas-Dean, Fermine, Toms, Jamie, Lofton, Katelyn, Rawls, Ashley, Rizer, Kyle, Black, Nieci, Solle, Justin, O'Grady, Alyssa, Sherer, Todd, Fiske, Brian, Başak, A. Nazlı, Tan, Ai Huey, Noyce, Alastair, Akpalu, Albert, Espay, Alberto, Martínez-Carrasco, Alejandro, Medina, Alex, Zimprich, Alexander, Brice, Alexis, Karimova, Altynay, Hernandez, Alvaro, Illarionova, Anastasia, Quattrone, Andrea, Singleton, Andrew B, Sobering, Andrew K., Vinuela, Angel, Sanyaolu, Arinola, Schumacher-Schuh, Artur F., Kishore, Asha, Ahmad-Annuar, Azlina, Al Mubarak, Bashayer, Tang, Beisha, Pizarro Galleguillos, Benjamin, Jeon, Beomseok, Siddiqi, Bernadette, Casey, Bradford, Mollenhauer, Brit, Carroll, Camille, Rieder, Carlos, Pantazis, Caroline B., Comart, Charisse, Lin, Chin-Hsien, Klein, Christine, Bale, Claire, Shepherd, Claire E, Wegel, Claire, Blauwendraat, Cornelis, Vitale, Dan, Martinez-Ramirez, Daniel, Hall, Deborah, Hernandez, Dena, KP, Divya, Nguyen, Duan, Fon, Edward A., Dadiotis, Efthymios, Riley, Ekemini, Iakovenko, Elena, Stafford, Ellie, Gatto, Emilia M, Valente, Enza Maria, Vollstedt, Eva-Juliane, Faghri, Faraz, Genc, Gencer, Xiromerisiou, Georgia, Hadjigorgiou, Georgios, Hiu-Fai Chan, Germaine, Arboleda, Gonzalo, Kaishibayeva, Gulnaz, Höglinger, Günter, Leonard, Hampton, Madoev, Harutyun, Iwaki, Hirotaka, Chen, Honglei, Wu, Hsiu-Chuan, Shang, Huifang, Morris, Huw R, F. Mata, Ignacio, Keller Sarmiento, Ignacio Juan, Dagklis, Ioannis, Tarnanas, Ioannis, Aasly, Jan O., Hoenicka, Janet, Corvol, Jean-Christophe, Foo, Jia Nee, Guo, Jifeng, Junker, Johanna, Carr, Jonathan, Kim, Jonggeol Jeff, Orozco, Jorge, Jankovic, Joseph, Shulman, Joshua, Hunter, Julie, Solle, Justin C., Murphy, Kaileigh, Nuytemans, Karen, Kieburtz, Karl, Lohmann, Katja, Marek, Kenneth, Mok, Kin Ying, Kumar, Kishore, Levine, Kristin, Chahine, Lana M., Lange, Lara M., Pihlstrøm, Lasse, Screven, Laurel, Stefanis, Leonidas, Shulman, Lisa, Marsili, Luca, Parnetti, Lucilla, Kuhl, Maggie, Funayama, Manabu, Sharma, Manu, Tan, Manuela, Kauffman, Marcelo, Miranda, Marcelo, Bustamante, Maria Leonor, Stamelou, Maria, Periñan Tocino, Maria Teresa, Cornejo-Olivas, Mario, Jimenez del Rio, Marlene, Makarious, Mary B, Koretsky, Mathew, Rodriguez-Violante, Mayela, Ellis, Melina, Avenali, Micol, Rentería, Miguel E., Inca-Martines, Miguel z, Nalls, Mike A., Ibrahim Norlinah, Mohamed, Umair, Muhammad, Ip, Nancy, Louie, Naomi, Cheung, Nelson Yuk-Fai, Mencacci, Niccolò Emanuele, Wood, Nicholas, Williams, Nigel, Hattori, Nobutaka, Abdul Murad, Nor Azian, Ibrahim, Norlinah Mohamed, Monchi, Oury, Öztop Çakmak, Özgür, Öztop Çakmak, Patricio Öztop Çakmak, Lewis, Patrick Alfryn, Pastor, Pau, Reyes-Pérez, Paula, Saffie Awad, Paula, Chana, Pedro, Chan, Phillip, Kung, Pin-Jui, Chan, Piu, Pal, Pramod, Lingappa Kukkle, Prashanth, Ojha, Rajeev, Kaiyrzhanov, Rauan, Krüger, Rejko, Amouri, Rim, Weil, Rimona, Rajan, Roopa, Alcalay, Roy, Wu, Ruey-Meei, Borgohain, Rupam, Sassi, Samia Ben, Khachatryan, Samson, Bandres-Ciga, Sara, El-Sadig, Sarah, Wu, Serena, Groppa, Sergio, Azmin, Shahrul, Lim, Shen-Yang, Ur-Rehman, Shoaib, Ertan, Sibel, Stott, Simon, Jasaitye, Simona, Chowdhury, Sohini, Dumanis, Sonya, Bardien, Soraya, Lubbe, Steven, Koks, Sulev, Dey, Sumit, Foroud, Tatiana, Fon, Ted, Beach, Thomas, Gasser, Thomas, Anderson, Tim, Nguyen, Toan, Schirinzi, Tommaso, Shiraishi, Tomotaka, Pitcher, Toni, Tumas, Vitor, Mohamed, Wael, Kamel, Walaa A., Luo, Wei, Zhou, Xiaopu, Zewde, Yared Z., Song, Yeajin, Wen, Yi, Wu, Yihru, Joong Kim, Yun, Tavadyan, Zaruhi, Fang, Zih-Hua, Ojo, Oluwadamilola Omolara, Crea, Peter Wild, Abiodun, Oladunni Victoria, Levine, Kristin S, Abubakar, Sani Atta, Achoru, Charles Obiora, Adeniji, Olaleye Akinmola, Agabi, Osigwe Paul, Koretsky, Mathew J, Hall, Deborah A, Akinyemi, Rufus Olusola, Ali, Mohammed Wulgo, Shamim, Ejaz A, Padmanaban, Mahesh, Arigbodi, Ohwotemu Michael, Standaert, David G, Bello, Abiodun Hamzat, Dean, Marissa N, Erameh, Cyril Oshomah, Farombi, Temitope Hannah, Fawale, Michael Bimbola, Billingsley, Kimberley J, Imarhiagbe, Frank Aiwansoba, Jerez, Pilar Alvarez, Iwuozo, Emmanuel Uzodinma, Baker, Breeana, Komolafe, Morenikeji Adeyoyin, Malik, Laksh, Nwani, Paul Osemeke, Daida, Kensuke, Nwazor, Ernest Okwundu, Miano-Burkhardt, Abigail, Nyandaiti, Yakub Wilberforce, Obiabo, Yahaya Olugbo, Kluss, Jillian H, Odeniyi, Olanike Adedoyin, Hernandez, Dena G, Odiase, Francis Ehidiamen, Tayebi, Nahid, Ojini, Francis Ibe, Sidranksy, Ellen, Onwuegbuzie, Gerald Awele, D'Souza, Andrea M, Osaigbovo, Godwin Osawaru, Berhe, Bahafta, Reed, Xylena, Oshinaike, Olajumoke Olufemi, Leonard, Hampton L, Otubogun, Folajimi Morenikeji, Alvarado, Chelsea X, Oyakhire, Shyngle Imiewan, Ozomma, Simon Izuchukwu, Samuel, Sarah Chabiri, Taiwo, Funmilola Tolulope, Wahab, Kolawole Wasiu, Zubair, Yusuf Agboola, Kim, Jonggeol Jeffrey, Nalls, Mike A, Heilbron, Karl, Norcliffe-Kaufmann, Lucy, and Okubadejo, Njideka Ulunma

Published
2023
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2. Genetic study of early-onset Parkinson's disease in the Malaysian population

Author

Tay, Yi Wen, Tan, Ai Huey, Lim, Jia Lun, Lohmann, Katja, Ibrahim, Khairul Azmi, Abdul Aziz, Zariah, Chin, Yen Theng, Mawardi, Ahmad Shahir, Lim, Thien Thien, Looi, Irene, Chia, Yuen Kang, Ooi, Joshua Chin Ern, Cheah, Wee Kooi, Dy Closas, Alfand Marl F., Lit, Lei Cheng, Hor, Jia Wei, Toh, Tzi Shin, Muthusamy, Kalai Arasu, Bauer, Peter, Skrahin, Volha, Rolfs, Arndt, Klein, Christine, Ahmad-Annuar, Azlina, and Lim, Shen-Yang

Published
2023
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4. A mixed method study on the impact of living with spinal muscular atrophy in Malaysia from patients’ and caregivers’ perspectives

Author

Gaik Siew Ch’ng, Karina Koh, Azlina Ahmad-Annuar, Fahisham Taib, Cha Ling Koh, and Edmund Soon Chin Lim

Subjects
Spinal muscular atrophy, Malaysia, Persons with spinal muscular atrophy, Caregiver, Neuromuscular disorder, Progressive muscle weakness, Medicine
Abstract

Abstract Background Spinal Muscular Atrophy (SMA) is a rare, recessively inherited neuromuscular disorder that causes progressive muscle weakness. There is a low degree of awareness about SMA amongst the public and healthcare providers, which may impact the perception of the disease and its proper management. To understand how this lack of awareness may have affected diagnosis, care and support for SMA patients and their caregivers, this study aims to investigate the impact of SMA on the lives and daily activities of SMA patients and their caregivers in Malaysia. Methods Nationwide recruitment was carried out via invitations coordinated by a local SMA advocacy organization. A mixed method cross-sectional study consisting of a self-administered questionnaire followed by in-depth interviews (IDIs) and focus group discussions (FGDs) was conducted. The interview sessions were audio-taped, and verbatim transcripts analyzed thematically. Results Participants reported feeling stressed, anxious and depressed. There were issues with delayed diagnosis, lack of information from healthcare professionals about the disease progression, and limited access to supportive services like physiotherapy. Participants expressed their concerns living with self-doubt and turmoil with having to modify their lifestyles, relationships with family and friends, and challenges with educational and career opportunities. Various themes of their hopes for the future touched on having access to treatment, clinical trials, holistic care for symptom management, as well as improving infrastructure for disability access. Conclusion This study, to the best of our knowledge represents the first comprehensive study on SMA in South East Asia, highlights a plethora of issues and challenges experienced by persons with spinal muscular atrophy (PWSMA) and their caregivers in Malaysia, from the point of SMA diagnosis and throughout the management of care, in addition to the deep psychosocial impact of living with SMA. The significant findings of this study may contribute to a better understanding among stakeholders to make improvements in clinical practice, the education system, the work environment as well as holistic care support and society at large.

Published
2022
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6. COVID-19 Pandemic: Lessons Learned for Undergraduate Research Training

Author

Ibrahim, Kamariah and Ahmad-Annuar, Azlina

Abstract

This article reports a session from the virtual international 2021 IUBMB/ASBMB workshop, "Teaching Science on Big Data." The awareness of using publicly available research data sets for undergraduate training is low in certain parts of the world. Final year projects always revolve around wet-lab based projects. The challenges occur during COVID-19 pandemic when it forces full lockdown to the nation, but at the same time faculty members need to provide consistent training to the students and projects to work with. We aim to identify supervisors in the faculty that are ready to convert their proposed project from wet-lab to an online-based project. As coordinators of the course we created an online survey to identify projects that can be converted into dry-lab/online projects. Our surveys identified only 32.5% projects implemented dry-lab/online based projects. Most academicians described that they are not ready or familiar to apply changes for their research design. With the unknown future of the world living with COVID-19 and directional changes of life science research toward big data driven research indeed we should be ready to adopt such changes. Awareness on reusing public data sets as tools for research should be provided to strengthen undergraduate training. Life science undergraduates should be exposed to reusing public data sets as these materials are readily available case studies that allow in depth exploration to answer specific research questions. Members of the faculty should take part to pave the way for them, ensuring that they understand that life science research revolves around a multidisciplinary field.

Published
2022
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7. Glucocerebrosidase (GBA) gene variants in a multi-ethnic Asian cohort with Parkinson’s disease: mutational spectrum and clinical features

Author

Lim, Jia Lun, Lohmann, Katja, Tan, Ai Huey, Tay, Yi Wen, Ibrahim, Khairul Azmi, Abdul Aziz, Zariah, Mawardi, Ahmad Shahir, Puvanarajah, Santhi Datuk, Lim, Thien Thien, Looi, Irene, Ooi, Joshua Chin Ern, Chia, Yuen Kang, Muthusamy, Kalai Arasu, Bauer, Peter, Rolfs, Arndt, Klein, Christine, Ahmad-Annuar, Azlina, and Lim, Shen-Yang

Published
2022
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8. Establishing an online resource to facilitate global collaboration and inclusion of underrepresented populations: Experience from the MJFF Global Genetic Parkinson's Disease Project.

Author

Eva-Juliane Vollstedt, Harutyun Madoev, Anna Aasly, Azlina Ahmad-Annuar, Bashayer Al-Mubarak, Roy N Alcalay, Victoria Alvarez, Ignacio Amorin, Grazia Annesi, David Arkadir, Soraya Bardien, Roger A Barker, Melinda Barkhuizen, A Nazli Basak, Vincenzo Bonifati, Agnita Boon, Laura Brighina, Kathrin Brockmann, Andrea Carmine Belin, Jonathan Carr, Jordi Clarimon, Mario Cornejo-Olivas, Leonor Correia Guedes, Jean-Christophe Corvol, David Crosiers, Joana Damásio, Parimal Das, Patricia de Carvalho Aguiar, Anna De Rosa, Jolanta Dorszewska, Sibel Ertan, Rosangela Ferese, Joaquim Ferreira, Emilia Gatto, Gençer Genç, Nir Giladi, Pilar Gómez-Garre, Hasmet Hanagasi, Nobutaka Hattori, Faycal Hentati, Dorota Hoffman-Zacharska, Sergey N Illarioshkin, Joseph Jankovic, Silvia Jesús, Valtteri Kaasinen, Anneke Kievit, Peter Klivenyi, Vladimir Kostic, Dariusz Koziorowski, Andrea A Kühn, Anthony E Lang, Shen-Yang Lim, Chin-Hsien Lin, Katja Lohmann, Vladana Markovic, Mika Henrik Martikainen, George Mellick, Marcelo Merello, Lukasz Milanowski, Pablo Mir, Özgür Öztop-Çakmak, Márcia Mattos Gonçalves Pimentel, Teeratorn Pulkes, Andreas Puschmann, Ekaterina Rogaeva, Esther M Sammler, Maria Skaalum Petersen, Matej Skorvanek, Mariana Spitz, Oksana Suchowersky, Ai Huey Tan, Pichet Termsarasab, Avner Thaler, Vitor Tumas, Enza Maria Valente, Bart van de Warrenburg, Caroline H Williams-Gray, Ruey-Mei Wu, Baorong Zhang, Alexander Zimprich, Justin Solle, Shalini Padmanabhan, and Christine Klein

Subjects
Medicine, Science
Abstract

Parkinson's disease (PD) is the fastest-growing neurodegenerative disorder, currently affecting ~7 million people worldwide. PD is clinically and genetically heterogeneous, with at least 10% of all cases explained by a monogenic cause or strong genetic risk factor. However, the vast majority of our present data on monogenic PD is based on the investigation of patients of European White ancestry, leaving a large knowledge gap on monogenic PD in underrepresented populations. Gene-targeted therapies are being developed at a fast pace and have started entering clinical trials. In light of these developments, building a global network of centers working on monogenic PD, fostering collaborative research, and establishing a clinical trial-ready cohort is imperative. Based on a systematic review of the English literature on monogenic PD and a successful team science approach, we have built up a network of 59 sites worldwide and have collected information on the availability of data, biomaterials, and facilities. To enable access to this resource and to foster collaboration across centers, as well as between academia and industry, we have developed an interactive map and online tool allowing for a quick overview of available resources, along with an option to filter for specific items of interest. This initiative is currently being merged with the Global Parkinson's Genetics Program (GP2), which will attract additional centers with a focus on underrepresented sites. This growing resource and tool will facilitate collaborative research and impact the development and testing of new therapies for monogenic and potentially for idiopathic PD patients.

Published
2023
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9. Editorial: Genetic and molecular diversity in Parkinson's disease

Author

Nor Azian Abdul Murad, Siti Aishah Sulaiman, Azlina Ahmad-Annuar, Norlinah Mohamed Ibrahim, Wael Mohamed, Shahrul Azmin Md Rani, and Kin Ying Mok

Subjects
Parkinson's disease, genetics, diversity, genome-wide association study, Asians, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Published
2022
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12. Clinical Outcomes After Ventriculo-Peritoneal Shunting in Patients With Classic vs. Complex NPH

Author

Eng Tah Goh, Christine Lock, Audrey Jia Luan Tan, Bee Ling Tan, Sai Liang, Robin Pillay, Sumeet Kumar, Azlina Ahmad-Annuar, Vairavan Narayanan, Janell Kwok, Yi Jayne Tan, Adeline SL Ng, Eng King Tan, Zofia Czosnyka, Marek Czosnyka, John D. Pickard, and Nicole C. Keong

Subjects
Alzheimer's disease, dementia, neurodegenerative disease, Normal Pressure Hydrocephalus (NPH), Parkinson's disease, ventriculo-peritoneal shunt (VPS), Neurology. Diseases of the nervous system, RC346-429
Abstract

ObjectiveNormal pressure hydrocephalus (NPH) is a neurological condition characterized by a clinical triad of gait disturbance, cognitive impairment, and urinary incontinence in conjunction with ventriculomegaly. Other neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and vascular dementia share some overlapping clinical features. However, there is evidence that patients with comorbid NPH and Alzheimer's or Parkinson's disease may still exhibit good clinical response after CSF diversion. This study aims to evaluate clinical responses after ventriculo-peritoneal shunt (VPS) in a cohort of patients with coexisting NPH and neurodegenerative disease.MethodsThe study has two components; (i) a pilot study was performed that specifically focused upon patients with Complex NPH and following the inclusion of the Complex NPH subtype into consideration for the clinical NPH programme, (ii) a retrospective snapshot study was performed to confirm and characterize differences between Classic and Complex NPH patients being seen consecutively over the course of 1 year within a working subspecialist NPH clinic. We studied the characteristics of patients with Complex NPH, utilizing clinical risk stratification and multimodal biomarkers.ResultsThere was no significant difference between responders and non-responders to CSF diversion on comorbidity scales. After VPS insertion, significantly more Classic NPH patients had improved cognition compared to Complex NPH patients (p = 0.005). Improvement in gait and urinary symptoms did not differ between the groups. 26% of the Classic NPH group showed global improvement of the triad, and 42% improved in two domains. Although only 8% showed global improvement of the triad, all Complex NPH patients improved in gait.ConclusionsOur study has demonstrated that the presence of neurodegenerative disorders co-existing with NPH should not be the sole barrier to the consideration of high-volume tap test or lumbar drainage via a specialist NPH programme. Further characterization of distinct cohorts of NPH with differing degrees of CSF responsiveness due to overlay from neurodegenerative or comorbidity risk burden may aid toward more precise prognostication and treatment strategies. We propose a simplistic conceptual framework to describe NPH by its Classic vs. Complex subtypes to promote the clinical paradigm shift toward subspecialist geriatric neurosurgery by addressing needs for rapid screening tools at the clinical-research interface.

Published
2022
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13. Missense Mutation of Brain Derived Neurotrophic Factor (BDNF) Alters Neurocognitive Performance in Patients with Mild Traumatic Brain Injury: A Longitudinal Study.

Author

Narayanan, Vairavan, Veeramuthu, Vigneswaran, Ahmad-Annuar, Azlina, Ramli, Norlisah, Waran, Vicknes, Chinna, Karuthan, Bondi, Mark William, Delano-Wood, Lisa, and Ganesan, Dharmendra

Subjects
Humans, Brain Concussion, Brain-Derived Neurotrophic Factor, Longitudinal Studies, Cognition, Neuropsychological Tests, Demography, Mutation, Missense, Polymorphism, Single Nucleotide, Alleles, Adult, Female, Male, Mutation, Missense, Polymorphism, Single Nucleotide, General Science & Technology
Abstract

The predictability of neurocognitive outcomes in patients with traumatic brain injury is not straightforward. The extent and nature of recovery in patients with mild traumatic brain injury (mTBI) are usually heterogeneous and not substantially explained by the commonly known demographic and injury-related prognostic factors despite having sustained similar injuries or injury severity. Hence, this study evaluated the effects and association of the Brain Derived Neurotrophic Factor (BDNF) missense mutations in relation to neurocognitive performance among patients with mTBI. 48 patients with mTBI were prospectively recruited and MRI scans of the brain were performed within an average 10.1 (SD 4.2) hours post trauma with assessment of their neuropsychological performance post full Glasgow Coma Scale (GCS) recovery. Neurocognitive assessments were repeated again at 6 months follow-up. The paired t-test, Cohen's d effect size and repeated measure ANOVA were performed to delineate statistically significant differences between the groups [wildtype G allele (Val homozygotes) vs. minor A allele (Met carriers)] and their neuropsychological performance across the time point (T1 = baseline/ admission vs. T2 = 6th month follow-up). Minor A allele carriers in this study generally performed more poorly on neuropsychological testing in comparison wildtype G allele group at both time points. Significant mean differences were observed among the wildtype group in the domains of memory (M = -11.44, SD = 10.0, p = .01, d = 1.22), executive function (M = -11.56, SD = 11.7, p = .02, d = 1.05) and overall performance (M = -6.89 SD = 5.3, p = .00, d = 1.39), while the minor A allele carriers showed significant mean differences in the domains of attention (M = -11.0, SD = 13.1, p = .00, d = .86) and overall cognitive performance (M = -5.25, SD = 8.1, p = .01, d = .66).The minor A allele carriers in comparison to the wildtype G allele group, showed considerably lower scores at admission and remained impaired in most domains across the timepoints, although delayed signs of recovery were noted to be significant in the domains attention and overall cognition. In conclusion, the current study has demonstrated the role of the BDNF rs6265 Val66Met polymorphism in influencing specific neurocognitive outcomes in patients with mTBI. Findings were more detrimentally profound among Met allele carriers.

Published
2016

14. Genetic Testing for Parkinson's Disease and Movement Disorders in Less Privileged Areas: Barriers and Opportunities

Author

Tan, Ai Huey, primary, Cornejo‐Olivas, Mario, additional, Okubadejo, Njideka, additional, Pal, Pramod Kumar, additional, Saranza, Gerard, additional, Saffie‐Awad, Paula, additional, Ahmad‐Annuar, Azlina, additional, Schumacher‐Schuh, Artur F., additional, Okeng'o, Kigocha, additional, Mata, Ignacio F., additional, Gatto, Emilia M., additional, and Lim, Shen‐Yang, additional

Published
2023
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15. Parkinson's disease in the Western Pacific Region

Author

Lim, Shen-Yang, Tan, Ai Huey, Ahmad-Annuar, Azlina, Klein, Christine, Tan, Louis C S, Rosales, Raymond L, Bhidayasiri, Roongroj, Wu, Yih-Ru, Shang, Hui-Fang, Evans, Andrew H, Pal, Pramod K, Hattori, Nobutaka, Tan, Chong Tin, Jeon, Beomseok, Tan, Eng-King, and Lang, Anthony E

Published
2019
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16. Establishing an online resource to facilitate global collaboration and inclusion of underrepresented populations: Experience from the MJFF Global Genetic Parkinson’s Disease Project

Author

Vollstedt, Eva-Juliane, primary, Madoev, Harutyun, additional, Aasly, Anna, additional, Ahmad-Annuar, Azlina, additional, Al-Mubarak, Bashayer, additional, Alcalay, Roy N., additional, Alvarez, Victoria, additional, Amorin, Ignacio, additional, Annesi, Grazia, additional, Arkadir, David, additional, Bardien, Soraya, additional, Barker, Roger A., additional, Barkhuizen, Melinda, additional, Basak, A. Nazli, additional, Bonifati, Vincenzo, additional, Boon, Agnita, additional, Brighina, Laura, additional, Brockmann, Kathrin, additional, Carmine Belin, Andrea, additional, Carr, Jonathan, additional, Clarimon, Jordi, additional, Cornejo-Olivas, Mario, additional, Correia Guedes, Leonor, additional, Corvol, Jean-Christophe, additional, Crosiers, David, additional, Damásio, Joana, additional, Das, Parimal, additional, de Carvalho Aguiar, Patricia, additional, De Rosa, Anna, additional, Dorszewska, Jolanta, additional, Ertan, Sibel, additional, Ferese, Rosangela, additional, Ferreira, Joaquim, additional, Gatto, Emilia, additional, Genç, Gençer, additional, Giladi, Nir, additional, Gómez-Garre, Pilar, additional, Hanagasi, Hasmet, additional, Hattori, Nobutaka, additional, Hentati, Faycal, additional, Hoffman-Zacharska, Dorota, additional, Illarioshkin, Sergey N., additional, Jankovic, Joseph, additional, Jesús, Silvia, additional, Kaasinen, Valtteri, additional, Kievit, Anneke, additional, Klivenyi, Peter, additional, Kostic, Vladimir, additional, Koziorowski, Dariusz, additional, Kühn, Andrea A., additional, Lang, Anthony E., additional, Lim, Shen-Yang, additional, Lin, Chin-Hsien, additional, Lohmann, Katja, additional, Markovic, Vladana, additional, Martikainen, Mika Henrik, additional, Mellick, George, additional, Merello, Marcelo, additional, Milanowski, Lukasz, additional, Mir, Pablo, additional, Öztop-Çakmak, Özgür, additional, Pimentel, Márcia Mattos Gonçalves, additional, Pulkes, Teeratorn, additional, Puschmann, Andreas, additional, Rogaeva, Ekaterina, additional, Sammler, Esther M., additional, Skaalum Petersen, Maria, additional, Skorvanek, Matej, additional, Spitz, Mariana, additional, Suchowersky, Oksana, additional, Tan, Ai Huey, additional, Termsarasab, Pichet, additional, Thaler, Avner, additional, Tumas, Vitor, additional, Valente, Enza Maria, additional, van de Warrenburg, Bart, additional, Williams-Gray, Caroline H., additional, Wu, Ruey-Mei, additional, Zhang, Baorong, additional, Zimprich, Alexander, additional, Solle, Justin, additional, Padmanabhan, Shalini, additional, and Klein, Christine, additional

Published
2023
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17. Real-World Experience of Deep Brain Stimulation Surgery in a Developing Southeast Asian Country

Author

Dy Closas, Alfand Marl F., primary, Tan, Ai Huey, additional, Tay, Yi Wen, additional, Hor, Jia Wei, additional, Toh, Tzi Shin, additional, Lim, Jia Lun, additional, Lew, Choey Yee, additional, Cham, Chun Yoong, additional, Yim, Carolyn Chue Wai, additional, Chee, Kok Yoon, additional, Ng, Chong Guan, additional, Lit, Lei Cheng, additional, Anuar, Anis Nadhirah Khairul, additional, Lange, Lara M., additional, Fang, Zih-Hua, additional, Ciga, Sara Bandres, additional, Lohmann, Katja, additional, Klein, Christine, additional, Ahmad-Annuar, Azlina, additional, Muthusamy, Kalai Arasu, additional, and Lim, Shen-Yang, additional

Published
2023
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18. Exome sequencing in Asian populations identifies rare deficient SMPD1 alleles that increase risk of Parkinson's disease

Author

Chew, Elaine GY, primary, Liu, Zhehao, additional, Li, Zheng, additional, Chung, Sun Ju, additional, Lian, Michelle M, additional, Tandiono, Moses, additional, Ng, Ebonne Y, additional, Tan, Louis CS, additional, Chng, Wee Ling, additional, Tan, Tiak Ju, additional, Peh, Esther KL, additional, Ho, Ying Swan, additional, Chen, Xiao Yin, additional, Lim, Erin YT, additional, Chang, Chu Hua, additional, Leong, Jonavan J, additional, Heng, Yue Jing, additional, Peh, Ting Xuan, additional, Chan, Ling-Ling, additional, Chao, Yinxia, additional, Au, Wing-Lok, additional, Prakash, Kumar M, additional, Lim, Jia Lun, additional, Tay, Yi Wen, additional, Mok, Vincent, additional, Chan, Anne YY, additional, Lin, Juei-Jueng, additional, Jeon, Beom S, additional, Song, Kyuyoung, additional, Tham, Clement CY, additional, Pang, Chi Pui, additional, Ahn, Jeeyun, additional, Park, Kyu Hyung, additional, Wiggs, Janey L, additional, Aung, Tin, additional, Tan, Ai-Huey, additional, Ahmad Annuar, Azlina, additional, Makarious, Mary B, additional, Blauwendraat, Cornelis, additional, Nalls, Mike A, additional, Robak, Laurie A, additional, Alcalay, Roy N, additional, Gan-Or, Ziv, additional, Lim, Shen-Yang, additional, Khor, Chiea-Chuen, additional, Tan, Eng-King, additional, Wang, Zhenxun, additional, and Foo, Jia Nee, additional

Published
2023
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19. Identification of genetic risk loci and causal insights associated with Parkinson's disease in African and African admixed populations: a genome-wide association study

Author

Rizig, Mie, primary, Bandres-Ciga, Sara, additional, Makarious, Mary B, additional, Ojo, Oluwadamilola Omolara, additional, Crea, Peter Wild, additional, Abiodun, Oladunni Victoria, additional, Levine, Kristin S, additional, Abubakar, Sani Atta, additional, Achoru, Charles Obiora, additional, Vitale, Dan, additional, Adeniji, Olaleye Akinmola, additional, Agabi, Osigwe Paul, additional, Koretsky, Mathew J, additional, Agulanna, Uchechi, additional, Hall, Deborah A, additional, Akinyemi, Rufus Olusola, additional, Xie, Tao, additional, Ali, Mohammed Wulgo, additional, Shamim, Ejaz A, additional, Ani-Osheku, Ifeyinwa, additional, Padmanaban, Mahesh, additional, Arigbodi, Ohwotemu Michael, additional, Standaert, David G, additional, Bello, Abiodun Hamzat, additional, Dean, Marissa N, additional, Erameh, Cyril Oshomah, additional, Elsayed, Inas, additional, Farombi, Temitope Hannah, additional, Okunoye, Olaitan, additional, Fawale, Michael Bimbola, additional, Billingsley, Kimberley J, additional, Imarhiagbe, Frank Aiwansoba, additional, Jerez, Pilar Alvarez, additional, Iwuozo, Emmanuel Uzodinma, additional, Baker, Breeana, additional, Komolafe, Morenikeji Adeyoyin, additional, Malik, Laksh, additional, Nwani, Paul Osemeke, additional, Daida, Kensuke, additional, Nwazor, Ernest Okwundu, additional, Miano-Burkhardt, Abigail, additional, Nyandaiti, Yakub Wilberforce, additional, Fang, Zih-Hua, additional, Obiabo, Yahaya Olugbo, additional, Kluss, Jillian H, additional, Odeniyi, Olanike Adedoyin, additional, Hernandez, Dena G, additional, Odiase, Francis Ehidiamen, additional, Tayebi, Nahid, additional, Ojini, Francis Ibe, additional, Sidranksy, Ellen, additional, Onwuegbuzie, Gerald Awele, additional, D'Souza, Andrea M, additional, Osaigbovo, Godwin Osawaru, additional, Berhe, Bahafta, additional, Osemwegie, Nosakhare, additional, Reed, Xylena, additional, Oshinaike, Olajumoke Olufemi, additional, Leonard, Hampton L, additional, Otubogun, Folajimi Morenikeji, additional, Alvarado, Chelsea X, additional, Oyakhire, Shyngle Imiewan, additional, Ozomma, Simon Izuchukwu, additional, Samuel, Sarah Chabiri, additional, Taiwo, Funmilola Tolulope, additional, Wahab, Kolawole Wasiu, additional, Zubair, Yusuf Agboola, additional, Iwaki, Hirotaka, additional, Kim, Jonggeol Jeffrey, additional, Morris, Huw R, additional, Hardy, John, additional, Nalls, Mike A, additional, Heilbron, Karl, additional, Norcliffe-Kaufmann, Lucy, additional, Blauwendraat, Cornelis, additional, Houlden, Henry, additional, Singleton, Andrew, additional, Okubadejo, Njideka Ulunma, additional, Okubadejo, Njideka, additional, Ojo, Oluwadamilola, additional, Abiodun, Oladunni, additional, Achoru, Charles, additional, Agabi, Osigwe, additional, Akinyemi, Rufus, additional, Ali, Mohammed, additional, Arigbodi, Ohwotemu, additional, Bello, Abiodun, additional, Erameh, Cyril, additional, Farombi, Temitope, additional, Fawale, Michael, additional, Imarhiagbe, Frank, additional, Iwuozo, Emmanuel, additional, Komolafe, Morenikeji, additional, Nwani, Paul, additional, Nwazor, Ernest, additional, Nyandaiti, Yakub, additional, Obiabo, Yahaya, additional, Odeniyi, Olanike, additional, Odiase, Francis, additional, Ojini, Francis, additional, Onwuegbuzie, Gerald, additional, Osaigbovo, Godwin, additional, Oshinaike, Olajumoke, additional, Otubogun, Folajimi, additional, Oyakhire, Shyngle, additional, Ozomma, Simon, additional, Samuel, Sarah, additional, Taiwo, Funmilola, additional, Wahab, Kolawole, additional, Zubair, Yusuf, additional, Gams Massi, Daniel, additional, Gueumekane Bila lamou, Eric, additional, Njamnshi Nfor, Leonard, additional, Magnerou, Mélanie Annick, additional, Fogang Fogoum, Yannick, additional, Shalash, Ali, additional, El-FawaI, Hassan, additional, Khedr, Eman, additional, Fawi, Gharib, additional, A. Eltantawi, Mohamed, additional, Salama, Mohamed, additional, El-Jaafary, Shaimaa, additional, Hamed, Sharifa, additional, Tafesse Mengesha, Abenet, additional, Alemayehu Ayele, Biniyam, additional, Melka Oda, Dereje, additional, Zenebe Zewde, Yared, additional, Debebe Gelan, Yohanesse, additional, AkpaIu, Albert, additional, Charway-Felli, Augustina, additional, Stephen Sarfo, Fred, additional, Adjei, Patrick, additional, Obese, Vida, additional, Bocoum, Abdoulaye, additional, Koita, Abdou, additional, Oumar Guinto, Cheick, additional, Coulibaly, Toumany, additional, Maiga, Youssoufa, additional, Kone, Zaynab, additional, Bell, Abiodun, additional, Adebowale, Akintunde A., additional, Akpekpe, John, additional, lyagba, Alagoma, additional, Wulgo, Ali Mohammed, additional, Arabambi, Babawale, additional, Agu, Christian, additional, Dike, Franklin, additional, Ishola, Ismail, additional, Abiodun, Kehinde, additional, Ekenze, Oluchi, additional, Agabi Osigwe, Paul, additional, Balarabe, Salisu, additional, Abubakar, Sani, additional, Williams, Uduak, additional, Fall, Maouly, additional, Mamadou Diop, Alassane, additional, Hilaire Dominique, Ewodo Touna, additional, Mochan, Andre, additional, Modi, Girish, additional, Dindayal, Saiesha, additional, Ali Awadelkareem, Eman, additional, Dahawi, Maha, additional, Awadelkareem, Mosab Ali, additional, Misbah, Sarah, additional, Mushengez, Brighton, additional, Kimambo, Henrika, additional, Msango, Leonard, additional, Adebayo, Philip, additional, OKeng, Kigocha, additional, Diekker, Marieke, additional, URassa, Sarah, additional, Gouider, Riadh, additional, Ben Djebara, Mouna, additional, Gargouri, Amina, additional, Kacem, Imen, additional, Nasri, Amina, additional, Mrabet, Saloua, additional, Sghaier, Ikram, additional, Mkada, Imen, additional, Atadzhanov, Masharip, additional, Chishimba, Lorraine, additional, Rizig, Mie, additional, Jama, Fatumah, additional, Nalls, Mike, additional, Shamim, Ejaz, additional, Jonas, Cabell, additional, Williamson, Jared, additional, Hall, Deborah A., additional, Rosenbaum, Marc, additional, Davis, Staci, additional, Dean, Marissa, additional, Cromer, Candace, additional, Smith, Jenna, additional, Ruffrage, Lauren, additional, Richardson, Joseph, additional, Sipma, Rebeka, additional, Padmanaban, Manesh, additional, Warren, Natalie, additional, Mercado, Tomas, additional, Disbrow, Elizabeth, additional, Chauppeta, Brian, additional, Thomas-Dean, Fermine, additional, Toms, Jamie, additional, Lofton, Katelyn, additional, Rawls, Ashley, additional, Rizer, Kyle, additional, Black, Nieci, additional, Solle, Justin, additional, O'Grady, Alyssa, additional, Sherer, Todd, additional, Fiske, Brian, additional, Başak, A. Nazlı, additional, Tan, Ai Huey, additional, Noyce, Alastair, additional, Akpalu, Albert, additional, Espay, Alberto, additional, Martínez-Carrasco, Alejandro, additional, Medina, Alex, additional, Zimprich, Alexander, additional, Brice, Alexis, additional, Karimova, Altynay, additional, Hernandez, Alvaro, additional, Illarionova, Anastasia, additional, Quattrone, Andrea, additional, Singleton, Andrew B, additional, Sobering, Andrew K., additional, Vinuela, Angel, additional, Sanyaolu, Arinola, additional, Schumacher-Schuh, Artur F., additional, Kishore, Asha, additional, Ahmad-Annuar, Azlina, additional, Al Mubarak, Bashayer, additional, Tang, Beisha, additional, Pizarro Galleguillos, Benjamin, additional, Jeon, Beomseok, additional, Siddiqi, Bernadette, additional, Casey, Bradford, additional, Mollenhauer, Brit, additional, Carroll, Camille, additional, Rieder, Carlos, additional, Pantazis, Caroline B., additional, Comart, Charisse, additional, Lin, Chin-Hsien, additional, Klein, Christine, additional, Bale, Claire, additional, Shepherd, Claire E, additional, Wegel, Claire, additional, Martinez-Ramirez, Daniel, additional, Hall, Deborah, additional, Hernandez, Dena, additional, KP, Divya, additional, Nguyen, Duan, additional, Fon, Edward A., additional, Dadiotis, Efthymios, additional, Riley, Ekemini, additional, Iakovenko, Elena, additional, Stafford, Ellie, additional, Gatto, Emilia M, additional, Valente, Enza Maria, additional, Vollstedt, Eva-Juliane, additional, Faghri, Faraz, additional, Genc, Gencer, additional, Xiromerisiou, Georgia, additional, Hadjigorgiou, Georgios, additional, Hiu-Fai Chan, Germaine, additional, Arboleda, Gonzalo, additional, Kaishibayeva, Gulnaz, additional, Höglinger, Günter, additional, Leonard, Hampton, additional, Madoev, Harutyun, additional, Chen, Honglei, additional, Wu, Hsiu-Chuan, additional, Shang, Huifang, additional, F. Mata, Ignacio, additional, Keller Sarmiento, Ignacio Juan, additional, Dagklis, Ioannis, additional, Tarnanas, Ioannis, additional, Aasly, Jan O., additional, Hoenicka, Janet, additional, Corvol, Jean-Christophe, additional, Foo, Jia Nee, additional, Guo, Jifeng, additional, Junker, Johanna, additional, Carr, Jonathan, additional, Kim, Jonggeol Jeff, additional, Orozco, Jorge, additional, Jankovic, Joseph, additional, Shulman, Joshua, additional, Hunter, Julie, additional, Solle, Justin C., additional, Murphy, Kaileigh, additional, Nuytemans, Karen, additional, Kieburtz, Karl, additional, Lohmann, Katja, additional, Marek, Kenneth, additional, Mok, Kin Ying, additional, Kumar, Kishore, additional, Levine, Kristin, additional, Chahine, Lana M., additional, Lange, Lara M., additional, Pihlstrøm, Lasse, additional, Screven, Laurel, additional, Stefanis, Leonidas, additional, Shulman, Lisa, additional, Marsili, Luca, additional, Parnetti, Lucilla, additional, Kuhl, Maggie, additional, Funayama, Manabu, additional, Sharma, Manu, additional, Tan, Manuela, additional, Kauffman, Marcelo, additional, Miranda, Marcelo, additional, Bustamante, Maria Leonor, additional, Stamelou, Maria, additional, Periñan Tocino, Maria Teresa, additional, Cornejo-Olivas, Mario, additional, Jimenez del Rio, Marlene, additional, Koretsky, Mathew, additional, Rodriguez-Violante, Mayela, additional, Ellis, Melina, additional, Avenali, Micol, additional, Rentería, Miguel E., additional, Inca-Martines, Miguel z, additional, Nalls, Mike A., additional, Ibrahim Norlinah, Mohamed, additional, Umair, Muhammad, additional, Ip, Nancy, additional, Louie, Naomi, additional, Cheung, Nelson Yuk-Fai, additional, Mencacci, Niccolò Emanuele, additional, Wood, Nicholas, additional, Williams, Nigel, additional, Hattori, Nobutaka, additional, Abdul Murad, Nor Azian, additional, Ibrahim, Norlinah Mohamed, additional, Monchi, Oury, additional, Öztop Çakmak, Özgür, additional, Öztop Çakmak, Patricio Öztop Çakmak, additional, Lewis, Patrick Alfryn, additional, Pastor, Pau, additional, Reyes-Pérez, Paula, additional, Saffie Awad, Paula, additional, Chana, Pedro, additional, Chan, Phillip, additional, Kung, Pin-Jui, additional, Chan, Piu, additional, Pal, Pramod, additional, Lingappa Kukkle, Prashanth, additional, Ojha, Rajeev, additional, Kaiyrzhanov, Rauan, additional, Krüger, Rejko, additional, Amouri, Rim, additional, Weil, Rimona, additional, Rajan, Roopa, additional, Alcalay, Roy, additional, Wu, Ruey-Meei, additional, Borgohain, Rupam, additional, Sassi, Samia Ben, additional, Khachatryan, Samson, additional, El-Sadig, Sarah, additional, Wu, Serena, additional, Groppa, Sergio, additional, Azmin, Shahrul, additional, Lim, Shen-Yang, additional, Ur-Rehman, Shoaib, additional, Ertan, Sibel, additional, Stott, Simon, additional, Jasaitye, Simona, additional, Chowdhury, Sohini, additional, Dumanis, Sonya, additional, Bardien, Soraya, additional, Lubbe, Steven, additional, Koks, Sulev, additional, Dey, Sumit, additional, Foroud, Tatiana, additional, Fon, Ted, additional, Beach, Thomas, additional, Gasser, Thomas, additional, Anderson, Tim, additional, Nguyen, Toan, additional, Schirinzi, Tommaso, additional, Shiraishi, Tomotaka, additional, Pitcher, Toni, additional, Tumas, Vitor, additional, Mohamed, Wael, additional, Kamel, Walaa A., additional, Luo, Wei, additional, Zhou, Xiaopu, additional, Zewde, Yared Z., additional, Song, Yeajin, additional, Wen, Yi, additional, Wu, Yihru, additional, Joong Kim, Yun, additional, and Tavadyan, Zaruhi, additional

Published
2023
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20. Embracing Monogenic Parkinson's Disease: The MJFF Global Genetic PD Cohort

Author

Vollstedt, Eva-Juliane, Schaake, Susen, Lohmann, Katja, Padmanabhan, Shalini, Brice, Alexis, Lesage, Suzanne, Tesson, Christelle, Vidailhet, Marie, Wurster, Isabel, Hentati, Faycel, Mirelman, Anat, Giladi, Nir, Marder, Karen, Waters, Cheryl, Fahn, Stanley, Kasten, Meike, Brüggemann, Norbert, Borsche, Max, Foroud, Tatiana, Tolosa, Eduardo, Garrido, Alicia, Annesi, Grazia, Gagliardi, Monica, Bozi, Maria, Stefanis, Leonidas, Ferreira, Joaquim J, Correia Guedes, Leonor, Avenali, Micol, Petrucci, Simona, Clark, Lorraine, Fedotova, Ekaterina Y, Abramycheva, Natalya Y, Alvarez, Victoria, Menéndez-González, Manuel, Jesús Maestre, Silvia, Gómez-Garre, Pilar, Mir, Pablo, Belin, Andrea Carmine, Ran, Caroline, Lin, Chin-Hsien, Kuo, Ming-Che, Crosiers, David, Wszolek, Zbigniew K, Ross, Owen A, Jankovic, Joseph, Nishioka, Kenya, Funayama, Manabu, Clarimon, Jordi, Williams-Gray, Caroline H, Camacho, Marta, Cornejo-Olivas, Mario, Torres-Ramirez, Luis, Wu, Yih-Ru, Lee-Chen, Guey-Jen, Morgadinho, Ana, Pulkes, Teeratorn, Termsarasab, Pichet, Berg, Daniela, Kuhlenbäumer, Gregor, Kühn, Andrea A, Borngräber, Friederike, De Michele, Giuseppe, De Rosa, Anna, Zimprich, Alexander, Puschmann, Andreas, Mellick, George D, Dorszewska, Jolanta, Carr, Jonathan, Ferese, Rosangela, Gambardella, Stefano, Chase, Bruce, Markopoulou, Katerina, Satake, Wataru, Toda, Tatsushi, Rossi, Malco, Merello, Marcelo, Lynch, Timothy, Olszewska, Diana A, Lim, Shen-Yang, Ahmad-Annuar, Azlina, Tan, Ai Huey, Al-Mubarak, Bashayer, Hanagasi, Hasmet, Koziorowski, Dariusz, Ertan, Sibel, Genç, Gençer, De Carvalho Aguiar, Patricia, Barkhuizen, Melinda, Pimentel, Marcia MG, Saunders-Pullman, Rachel, Van De Warrenburg, Bart, Bressman, Susan, Toft, Mathias, Appel-Cresswell, Silke, Lang, Anthony E, Skorvanek, Matej, Boon, Agnita JW, Krüger, Rejko, Sammler, Esther M, Tumas, Vitor, Zhang, Bao-Rong, Garraux, Gaetan, Chung, Sun Ju, Kim, Yun Joong, Winkelmann, Juliane, Sue, Carolyn M, Tan, Eng-King, Damásio, Joana, Klivényi, Péter, Kostic, Vladimir S, Arkadir, David, Martikainen, Mika, Borges, Vanderci, Hertz, Jens Michael, Brighina, Laura, Spitz, Mariana, Suchowersky, Oksana, Riess, Olaf, Das, Parimal, Mollenhauer, Brit, Gatto, Emilia M, Petersen, Maria Skaalum, Hattori, Nobutaka, Wu, Ruey-Meei, Illarioshkin, Sergey N, Valente, Enza Maria, Aasly, Jan O, Aasly, Anna, Alcalay, Roy N, Thaler, Avner, Farrer, Matthew J, Brockmann, Kathrin, Corvol, Jean-Christophe, Klein, Christine, MJFF Global Genetic Parkinson's Disease Study Group, Vollstedt, Ej, Schaake, S, Lohmann, K, Padmanabhan, S, Brice, A, Lesage, S, Tesson, C, Vidailhet, M, Wurster, I, Hentati, F, Mirelman, A, Giladi, N, Marder, K, Waters, C, Fahn, S, Kasten, M, Brüggemann, N, Borsche, M, Foroud, T, Tolosa, E, Garrido, A, Annesi, G, Gagliardi, M, Bozi, M, Stefanis, L, Ferreira, Jj, Correia Guedes, L, Avenali, M, Petrucci, S, Clark, L, Fedotova, Ey, Abramycheva, Ny, Alvarez, V, Menéndez-González, M, Jesús Maestre, S, Gómez-Garre, P, Mir, P, Belin, Ac, Ran, C, Lin, Ch, Kuo, Mc, Crosiers, D, Wszolek, Zk, Ross, Oa, Jankovic, J, Nishioka, K, Funayama, M, Clarimon, J, Williams-Gray, Ch, Camacho, M, Cornejo-Olivas, M, Torres-Ramirez, L, Wu, Yr, Lee-Chen, Gj, Morgadinho, A, Pulkes, T, Termsarasab, P, Berg, D, Kuhlenbäumer, G, Kühn, Aa, Borngräber, F, de Michele, G, De Rosa, A, Zimprich, A, Puschmann, A, Mellick, Gd, Dorszewska, J, Carr, J, Ferese, R, Gambardella, S, Chase, B, Markopoulou, K, Satake, W, Toda, T, Rossi, M, Merello, M, Lynch, T, Olszewska, Da, Lim, Sy, Ahmad-Annuar, A, Tan, Ah, Al-Mubarak, B, Hanagasi, H, Koziorowski, D, Ertan, S, Genç, G, de Carvalho Aguiar, P, Barkhuizen, M, Pimentel, Mmg, Saunders-Pullman, R, van de Warrenburg, B, Bressman, S, Toft, M, Appel-Cresswell, S, Lang, Ae, Skorvanek, M, Boon, Ajw, Krüger, R, Sammler, Em, Tu, Repositório da Universidade de Lisboa, Clinical Genetics, Neurology, Internal Medicine, Aasly, Anna, Aasly, Jan O, Abramycheva, Natalya Y, Ahmad-Annuar, Azlina, Albanese, Alberto, Alcalay, Roy N, Aldakheel, Amaal, Alkhairallah, Thamer, Al-Mubarak, Bashayer, Al-Tassan, Nada, Alvarez, Victoria, Amami, Paolo, Annesi, Grazia, Appel-Cresswell, Silke, Leite, Marco Antonio Araujo, Arkadir, David, Avenali, Micol, Ferraz, Henrique Ballalai, Bardien, Soraya, Barkhuizen, Melinda, Barrett, Matthew J, Başak, A Nazlı, Berg, Daniela, Bilgic, Basar, Bloem, Bastiaan R, Bonifati, Vincenzo, Boon, Agnita J W, Borges, Vanderci, Borngräber, Friederike, Borsche, Max, Bozi, Maria, Bressman, Susan, Brice, Alexis, Brighina, Laura, Brockmann, Kathrin, Brüggemann, Norbert, Camacho, Marta, Belin, Andrea Carmine, Carr, Jonathan, Cesarini, Martin Emiliano, Cornejo-Olivas, Mario, Chase, Bruce, Chung, Sun Ju, Guedes, Leonor Correia, Clarimon, Jordi, Clark, Lorraine, Corvol, Jean-Christophe, Crosiers, David, Das, Parimal, de Carvalho Aguiar, Patricia, Damásio, Joana, de Michele, Giuseppe, De Rosa, Anna, Dieguez, Elena, Dorszewska, Jolanta, Ertan, Sibel, Fahn, Stanley, Farrer, Matthew J, Fedotova, Ekaterina Y, Ferese, Rosangela, Ferreira, Joaquim J, Foroud, Tatiana, Funayama, Manabu, Fung, Victor S C, Gagliardi, Monica, Gambardella, Stefano, Garraux, Gaetan, Garrido, Alicia, Gatto, Emilia M, Genç, Gençer, Giladi, Nir, Gómez-Garre, Pilar, Hanagasi, Hasmet, Hattori, Nobutaka, Hentati, Faycel, Hertz, Jens Michael, Illarioshkin, Sergey N, Jankovic, Joseph, Januario, Cristina, Maestre, Silvia Jesús, Kaasinen, Valtteri, Kasten, Meike, Kataoka, Hiroshi, Kievit, Anneke A, Kim, Yun Joong, Klein, Christine, Klivényi, Péter, Kostic, Vladimir S, Koziorowski, Dariusz, Krüger, Rejko, Kühn, Andrea, Kuhlenbäumer, Gregor, Kuo, Ming-Che, Lang, Anthony E, Lee-Chen, Guey-Jen, Lesage, Suzanne, Lim, Jia Lun, Lim, Shen-Yang, Lin, Chin-Hsien, Lohmann, Katja, Lynch, Timothy, Marder, Karen, Markopoulou, Katerina, Martikainen, Mika, May, Patrick, McCarthy, Allan, Mellick, George D, Menéndez-González, Manuel, Merello, Marcelo, Mir, Pablo, Mirelman, Anat, Mollenhauer, Brit, Briceno, Hugo Morales, Morgadinho, Ana, Morris, Huw, Mosejova, Alexandra, Nishioka, Kenya, Çakmak, Özgür Öztop, Olszewska, Diana A, Orr-Urtreger, Avi, Pachchek, Sinthuja, Padmanabhan, Shalini, Periñán, Maria Teresa, Petrucci, Simona, Pimentel, Marcia M G, Procopio, Radha, Pulkes, Teeratorn, Puschmann, Andreas, Ran, Caroline, Riess, Olaf, Ross, Owen A, Rossi, Malco, Ruiz-Martinez, Javier, Sammler, Esther M, Pereira, João Santos, Satake, Wataru, Saunders-Pullman, Rachel, Schaake, Susen, Petersen, Maria Skaalum, Skorvanek, Matej, Stefanis, Leonidas, Soto-Beasley, Alexandra I, Sousa, Mário, Spitz, Mariana, Suchowersky, Oksana, Sue, Carolyn M, Tan, Ai Huey, Tan, Eng-King, Thaler, Avner, Tepgeç, Fatih, Termsarasab, Pichet, Tesson, Christelle, Toda, Tatsushi, Toft, Mathias, Tolosa, Eduardo, Torres-Ramirez, Luis, Tumas, Vitor, Uyguner, Oya, Valente, Enza Maria, van de Warrenburg, Bart, Vidailhet, Marie, Vollstedt, Eva-Juliane, Walton, Ronald L, Waters, Cheryl, Williams-Gray, Caroline H, Winkelmann, Juliane, Wu, Yih-Ru, Wurster, Isabel, Wszolek, Zbigniew K, Wu, Ruey-Meei, Zhang, Bao-Rong, Zimprich, Alexander, Vollstedt, Eva-Juliane [0000-0002-6898-9201], Lohmann, Katja [0000-0002-5121-1460], Mirelman, Anat [0000-0002-1520-2292], Brüggemann, Norbert [0000-0001-5969-6899], Borsche, Max [0000-0002-9651-5986], Tolosa, Eduardo [0000-0002-3781-0854], Ferreira, Joaquim J [0000-0003-3950-5113], Alvarez, Victoria [0000-0002-1916-2523], Mir, Pablo [0000-0003-1656-302X], Kuo, Ming-Che [0000-0003-3688-0225], Ross, Owen A [0000-0003-4813-756X], Nishioka, Kenya [0000-0001-8607-9757], Williams-Gray, Caroline H [0000-0002-2648-9743], Camacho, Marta [0000-0002-1490-5703], Cornejo-Olivas, Mario [0000-0001-6313-5680], Wu, Yih-Ru [0000-0003-1191-2542], Termsarasab, Pichet [0000-0002-3260-3119], Borngräber, Friederike [0000-0001-9650-6820], Zimprich, Alexander [0000-0002-1668-5177], Gambardella, Stefano [0000-0002-3727-4502], Chase, Bruce [0000-0001-5491-7242], Olszewska, Diana A [0000-0002-1814-8834], Tan, Ai Huey [0000-0002-2979-3839], Barkhuizen, Melinda [0000-0002-9952-7085], Appel-Cresswell, Silke [0000-0002-5986-1468], Skorvanek, Matej [0000-0001-5497-8715], Sammler, Esther M [0000-0003-3218-7116], Zhang, Bao-Rong [0000-0002-8099-7407], Chung, Sun Ju [0000-0003-4118-8233], Apollo - University of Cambridge Repository, and MJFF Global Genetic Parkinson's Disease Study Group

Subjects
parkinson's disease, monogenic pd, monogenic PD, Parkinson's disease, Monogenic PD, Parkinson Disease, Disorders of movement Donders Center for Medical Neuroscience [Radboudumc 3], ddc, Neurology, genetics [Parkinson Disease], Mutation, Humans, Human medicine, ddc:610, Neurology (clinical), Research Article, Research Articles
Abstract

© 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited., Background: As gene-targeted therapies are increasingly being developed for Parkinson's disease (PD), identifying and characterizing carriers of specific genetic pathogenic variants is imperative. Only a small fraction of the estimated number of subjects with monogenic PD worldwide are currently represented in the literature and availability of clinical data and clinical trial-ready cohorts is limited. Objective: The objectives are to (1) establish an international cohort of affected and unaffected individuals with PD-linked variants; (2) provide harmonized and quality-controlled clinical characterization data for each included individual; and (3) further promote collaboration of researchers in the field of monogenic PD. Methods: We conducted a worldwide, systematic online survey to collect individual-level data on individuals with PD-linked variants in SNCA, LRRK2, VPS35, PRKN, PINK1, DJ-1, as well as selected pathogenic and risk variants in GBA and corresponding demographic, clinical, and genetic data. All registered cases underwent thorough quality checks, and pathogenicity scoring of the variants and genotype-phenotype relationships were analyzed. Results: We collected 3888 variant carriers for our analyses, reported by 92 centers (42 countries) worldwide. Of the included individuals, 3185 had a diagnosis of PD (ie, 1306 LRRK2, 115 SNCA, 23 VPS35, 429 PRKN, 75 PINK1, 13 DJ-1, and 1224 GBA) and 703 were unaffected (ie, 328 LRRK2, 32 SNCA, 3 VPS35, 1 PRKN, 1 PINK1, and 338 GBA). In total, we identified 269 different pathogenic variants; 1322 individuals in our cohort (34%) were indicated as not previously published. Conclusions: Within the MJFF Global Genetic PD Study Group, we (1) established the largest international cohort of affected and unaffected individuals carrying PD-linked variants; (2) provide harmonized and quality-controlled clinical and genetic data for each included individual; (3) promote collaboration in the field of genetic PD with a view toward clinical and genetic stratification of patients for gene-targeted clinical trials. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society., Michael J. Fox Foundation for Parkinson's Research. Grant Number: ID 15015.02. NIHR Cambridge Biomedical Research Centre. Grant Number: BRC-1215-20014

Published
2023

21. A KMT2B Frameshift Variant Causing Focal Dystonia Restricted to the Oromandibular Region After Long-Term Follow-up

Author

Alfand Marl F. Dy Closas, Katja Lohmann, Ai Huey Tan, Norlinah Mohamed Ibrahim, Jia Lun Lim, Yi Wen Tay, Kalai Arasu Muthusamy, Azlina Binti Ahmad-Annuar, Christine Klein, and Shen-Yang Lim

Subjects
Neurology, Neurology (clinical)
Abstract

KMT2B-linked dystonia (DYT-KMT2B) is a childhood-onset dystonia syndrome typically beginning in the lower limbs and progressing caudocranially to affect the upper limbs with eventual prominent craniocervical involvement. Despite its recent recognition, it now appears to be one of the more common monogenic causes of dystonia syndromes. Here, we present an atypical case of DYT-KMT2B with oromandibular dystonia as the presenting feature, which remained restricted to this region three decades after symptom onset. This appears to be the first reported case of DYT-KMT2B from Southeast Asia and provides further supporting evidence for the pathogenic impact of the KMT2B c.6210_6213delTGAG variant.

Published
2023

22. LRRK2 N551K and R1398H variants are protective in Malays and Chinese in Malaysia: A case–control association study for Parkinson's disease

Author

Aroma Agape Gopalai, Jia Lun Lim, Hui‐Hua Li, Yi Zhao, Thien Thien Lim, Gaik B. Eow, Santhi Puvanarajah, Shanthi Viswanathan, Mohamed Ibrahim Norlinah, Zariah Abdul Aziz, Soo Kun Lim, Chong Tin Tan, Ai Huey Tan, Shen‐Yang Lim, Eng‐King Tan, and Azlina Ahmad Annuar

Subjects
LRRK2, N551K, Parkinson's disease, R1398H, Genetics, QH426-470
Abstract

Abstract Background The LRRK2 gene is associated with Parkinson's disease (PD) as a number of mutations within the gene have been shown to be susceptibility factors. Studies on various global populations have determined that mutations such as G2019S, G2385R, and R1628P in LRRK2 increase the risk of developing PD while the N551K‐R1398H haplotype is associated with conferring protection against developing PD. Here we report a study looking at the N551K and R1398H variants for the first time in the Malaysian population. Methods Cases (523) which conformed to the United Kingdom PD Brain Bank Criteria for PD were recruited through trained neurologists and age‐ and ethnically matched controls (491) were individuals free of any neurological disorder. The N551K and R1398H mutations were genotyped using the Taqman SNP genotyping assay. Results A significant protective association for N551K was found in those of Malay ancestry, with a protective trend seen for R1398H. A meta‐analysis of Chinese individuals in this cohort with other published cohorts of Chinese ancestry indicated a significant protective role for N551K and R1398H. Conclusion This study reports that the N551K‐R1398H haplotype is also relevant to the Malaysian population, with a significant protective effect found in those of Malay and Chinese ancestries.

Published
2019
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23. Cranial neural tube defect after trimethoprim exposure

Author

Nor Linda Abdullah, Renuka Gunasekaran, Siti Waheeda Mohd-Zin, Bee-Hui Lim, Pramila Maniam, Anis Shuhada Mohd-Salleh, Meow-Keong Thong, Zamri Chik, Noreena Nordin, Zaliha Omar, Julia Patrick Engkasan, Dharmendra Ganesan, Zakaria Nurul Aiezzah, Azlina Ahmad-Annuar, and Noraishah Mydin Abdul-Aziz

Subjects
Neural tube defects, Trimethoprim, Folic acid antagonist, Acne, Primary neurulation, Malaysia, Medicine, Biology (General), QH301-705.5, Science (General), Q1-390
Abstract

Abstract Objectives The Neural Tube Defects Research Group of University of Malaya was approached to analyze a tablet named TELSE, which may have resulted in a baby born with central nervous system malformation at the University of Malaya Medical Centre. In this animal experimental study, we investigated the content of TELSE and exposure of its contents that resulted in failure of primary neurulation. Results Liquid Chromatography Tandem Mass spectrophotometry analysis of the TELSE tablet confirmed the presence of trimethoprim as the active compound. The TELSE tablet-treated females produced significant numbers of embryos with exencephaly (n = 8, 36.4%, *P

Published
2018
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24. A Patient with Beta-Propeller Protein-Associated Neurodegeneration: Treatment with Iron Chelation Therapy

Author

Shen-Yang Lim, Ai Huey Tan, Azlina Ahmad-Annuar, Susanne A. Schneider, Ping Chong Bee, Jia Lun Lim, Norlisah Ramli, and Mohamad Imran Idris

Subjects
Beta-propeller protein-associated neurodegeneration, neurodegeneration with brain iron accumulation, stereotypies, deferiprone, Neurology. Diseases of the nervous system, RC346-429
Abstract

We present a case of beta-propeller protein-associated neurodegeneration, a form of neurodegeneration with brain iron accumulation. The patient harbored a novel mutation in the WDR45 gene. A detailed video and description of her clinical condition are provided. Her movement disorder phenomenology was characterized primarily by limb stereotypies and gait dyspraxia. The patient’s disability was advanced by the time iron-chelating therapy with deferiprone was initiated, and no clinical response in terms of cognitive function, behavior, speech, or movements were observed after one year of treatment.

Published
2018
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27. Genetic Testing for Parkinson's Disease and Movement Disorders in Less Privileged Areas: Barriers and Opportunities.

Author

Tan, Ai Huey, Cornejo‐Olivas, Mario, Okubadejo, Njideka, Pal, Pramod Kumar, Saranza, Gerard, Saffie‐Awad, Paula, Ahmad‐Annuar, Azlina, Schumacher‐Schuh, Artur F., Okeng'o, Kigocha, Mata, Ignacio F., Gatto, Emilia M., and Lim, Shen‐Yang

Subjects
MOVEMENT disorders, PARKINSON'S disease, GENETIC testing, MEDICAL mistrust, MEDICAL ethics, CAREGIVER attitudes, RESOURCE-limited settings
Abstract

This article explores the challenges and opportunities surrounding genetic testing for Parkinson's disease and other movement disorders in low- and middle-income countries (LMICs). Limited availability and accessibility of genetic testing services, along with financial constraints and limited test options, pose significant barriers in these areas. The shortage of healthcare professionals specializing in neurology, movement disorders, clinical genetics, and genetic counseling further hampers access to genetic testing. Cultural factors, health literacy, and ethical considerations also influence the acceptability of genetic testing. The article proposes various strategies to overcome these barriers, including improving education and training programs for both patients and healthcare professionals, disseminating information through culturally appropriate channels, and advocating for equitable access to genetic testing in LMICs. [Extracted from the article]

Published
2024
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28. Rare homozygous PRKN exon 7 duplication in a Ibanese patient from Northwestern Borneo with young onset Parkinson’s disease

Author

Siaw Cheng Wong, Zhun Foo Tan, Yi-Wen Tay, Wan Chung Law, Azlina Ahmad-Annuar, Ai Huey Tan, and Shen-Yang Lim

Subjects
Neurology, Neurology (clinical)
Abstract

We describe the clinical features of a Sarawakian man of Ibanese ethnicity with young-onset Parkinson’s disease (PD), who carried a very rare homozygous PRKN exon 7 duplication. Truncal dystonia was a prominent feature on presentation, in addition to classical parkinsonian motor features. This report adds to the very limited literature on monogenic causes of PD in Southeast Asia and specifically the indigenous group in the Borneo region.

Published
2022

29. Embracing Monogenic Parkinson's Disease: The MJFF Global Genetic PD Cohort

Author

Luxembourg Centre for Systems Biomedicine (LCSB): Clinical & Experimental Neuroscience (Krüger Group) [research center], Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Fonds National de la Recherche - FnR [sponsor], MJFF [sponsor], H2020 (Orchestra) [sponsor], Vollstedt, Eva-Juliane, Schaake, Susen, Lohmann, Katja, Padmanabhan, Shalini, Brice, Alexis, Lesage, Suzanne, Tesson, Christelle, Vidailhet, Marie, Wurster, Isabel, Hentati, Faycel, Mirelman, Anat, Giladi, Nir, Karen, Marder, Waters, Cheryl, Fahn, Stanley, Kasten, Meike, Brüggemann, Norbert, Borsche, Max, Foroud, Tatiana, Tolosa, Eduardo, Garrido, Alicia, Annesi, Grazia, Gagliardi, Monica, Bozi, Maria, Stefanis, Leonidas, Ferreira, Joaquim J., Correia Guedes, Leonor, Avenali, Micol, Petrucci, Simona, Clark, Lorraine, Fedotova, Ekaterina Y., Abramycheva, Natalya Y., Alvarez, Victoria, Menéndez-González, Manuel, Jesús Maestre, Silvia, Gómez-Garre, Pilar, Mir, Pablo, Belin, Andrea Carmine, Ran, Caroline, Lin, Chin-Hsien, Kuo, Ming-Che, Crosiers, David, Wszolek, Zbigniew K., Ross, Owen A., Jankovic, Joseph, Nishioka, Kenya, Funayama, Manabu, Clarimon, Jordi, Williams-Gray, Caroline H., Camacho, Marta, Cornejo-Olivas, Mario, Torres-Ramirez, Luis, Wu, Yih-Ru, Lee-Chen, Guey-Jen, Morgadinho, Ana, Pulkes, Teeratorn, Termsarasab, Pichet, Berg, Daniela, Gregor, Kuhlenbäumer, Kühn, Andrea A., Borngräber, Friederike, de Michele, Giuseppe, De Rosa, Anna, Zimprich, Alexander, Puschmann, Andreas, Mellick, George D., Jolanta, Dorszewska, Carr, Jonathan, Ferese, Rosangela, Stefano, Gambardella, Chase, Bruce, Markopoulou, Katerina, Wataru, Satake, Toda, Tatsushi, Rossi, Malco, Merello, Marcelo, Lynch, Timothy, Olszewska, Diana A., Lim, Shen-Yang, Ahmad-Annuar, Azlina, Tan, Ai Huey, Al-Mubarak, Bashayer, Hanagasi, Hasmet, Koziorowski, Dariusz, Ertan, Sibel, Gen c, Gen Cer, de Carvalho Aguiar, Patricia, Barkhuizen, Melinda, Pimentel, Marcia M. G., Saunders-Pullman, Rachel, van de Warrenburg, Bart, Bressman, Susan, Toft, Mathias, Appel-Cresswell, Silke, Lang, Anthony E., Skorvanek, Matej, Boon, Agnita J. W., Krüger, Rejko, Sammler, Esther M., Tumas, Vitor, Zhang, Bao-Rong, Garraux, Gaetan, Chung, Sun Ju, Joong, Kim Yun, Winkelmann, Juliane, Sue, Carolyn M., Eng-King, Tan, Damásio, Joana, Klivényi, Péter, Kostic, Vladimir S., Arkadir, David, Martikainen, Mika, Borges, Vanderci, Hertz, Jens Michael, Brighina, Laura, Spitz, Mariana, Suchowersky, Oksana, Riess, Olaf, Parimal, Das, Mollenhauer, Brit, Gatto, Emilia M., Skaalum, Petersen Maria, Wu, Ruey-Meei, Illarioshkin, Sergey N., Valente, Enza Maria, Aasly, Jan O., Aasly, Anna, N, Alcalay Roy, Thaler, Avner, Farrer, Matthew J., Kathrin, Brockmann, Corvol, Jean-Christophe, Klein, Christine, Albanese, Alberto, Alcalay, Roy N., Aldakheel, Amaal, Alkhairallah, Thamer, Bashayer, Al-Mubarak, Al-Tassan, Nada, Paolo, Amami, Araujo, Leite Marco Antonio, Ferraz, Henrique Ballalai, Bardien, Soraya, Melinda, Barkhuizen, Barrett, Matthew J., Ba sak, A. Nazl I, Bilgic, Basar, Bloem, Bastiaan R., Bonifati, Vincenzo, Brockmann, Kathrin, Cesarini, Martin Emiliano, Ju, Chung Sun, Guedes, Leonor Correia, Lorraine, Clark, Dieguez, Elena, Dorszewska, Jolanta, Fung, Victor S. C., Pilar, Gómez-Garre, Hattori, Nobutaka, Faycel, Hentati, Januario, Cristina, Maestre, Silvia Jesús, Kaasinen, Valtteri, Hiroshi, Kataoka, Kievit, Anneke A., Kim, Yun Joong, Christine, Klein, Kuhlenbäumer, Gregor, Lim, Jia Lun, Timothy, Lynch, Marder, Karen, May, Patrick, McCarthy, Allan, Briceno, Hugo Morales, Morris, Huw, Mosejova, Alexandra, Cakmak, Özgür Öztop, Orr-Urtreger, Avi, Pachchek, Sinthuja, Periñ\'an, Maria Teresa, Procopio, Radha, Ruiz-Martinez, Javier, Pereira, João Santos, Satake, Wataru, Soto-Beasley, Alexandra I., Sousa, Mário, Tan, Eng-King, Tepge c, Fatih, Uyguner, Oya, Walton, Ronald L., H, Williams-Gray Caroline, Isabel, Wurster, Bao-Rong, Zhang, Luxembourg Centre for Systems Biomedicine (LCSB): Clinical & Experimental Neuroscience (Krüger Group) [research center], Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Fonds National de la Recherche - FnR [sponsor], MJFF [sponsor], H2020 (Orchestra) [sponsor], Vollstedt, Eva-Juliane, Schaake, Susen, Lohmann, Katja, Padmanabhan, Shalini, Brice, Alexis, Lesage, Suzanne, Tesson, Christelle, Vidailhet, Marie, Wurster, Isabel, Hentati, Faycel, Mirelman, Anat, Giladi, Nir, Karen, Marder, Waters, Cheryl, Fahn, Stanley, Kasten, Meike, Brüggemann, Norbert, Borsche, Max, Foroud, Tatiana, Tolosa, Eduardo, Garrido, Alicia, Annesi, Grazia, Gagliardi, Monica, Bozi, Maria, Stefanis, Leonidas, Ferreira, Joaquim J., Correia Guedes, Leonor, Avenali, Micol, Petrucci, Simona, Clark, Lorraine, Fedotova, Ekaterina Y., Abramycheva, Natalya Y., Alvarez, Victoria, Menéndez-González, Manuel, Jesús Maestre, Silvia, Gómez-Garre, Pilar, Mir, Pablo, Belin, Andrea Carmine, Ran, Caroline, Lin, Chin-Hsien, Kuo, Ming-Che, Crosiers, David, Wszolek, Zbigniew K., Ross, Owen A., Jankovic, Joseph, Nishioka, Kenya, Funayama, Manabu, Clarimon, Jordi, Williams-Gray, Caroline H., Camacho, Marta, Cornejo-Olivas, Mario, Torres-Ramirez, Luis, Wu, Yih-Ru, Lee-Chen, Guey-Jen, Morgadinho, Ana, Pulkes, Teeratorn, Termsarasab, Pichet, Berg, Daniela, Gregor, Kuhlenbäumer, Kühn, Andrea A., Borngräber, Friederike, de Michele, Giuseppe, De Rosa, Anna, Zimprich, Alexander, Puschmann, Andreas, Mellick, George D., Jolanta, Dorszewska, Carr, Jonathan, Ferese, Rosangela, Stefano, Gambardella, Chase, Bruce, Markopoulou, Katerina, Wataru, Satake, Toda, Tatsushi, Rossi, Malco, Merello, Marcelo, Lynch, Timothy, Olszewska, Diana A., Lim, Shen-Yang, Ahmad-Annuar, Azlina, Tan, Ai Huey, Al-Mubarak, Bashayer, Hanagasi, Hasmet, Koziorowski, Dariusz, Ertan, Sibel, Gen c, Gen Cer, de Carvalho Aguiar, Patricia, Barkhuizen, Melinda, Pimentel, Marcia M. G., Saunders-Pullman, Rachel, van de Warrenburg, Bart, Bressman, Susan, Toft, Mathias, Appel-Cresswell, Silke, Lang, Anthony E., Skorvanek, Matej, Boon, Agnita J. W., Krüger, Rejko, Sammler, Esther M., Tumas, Vitor, Zhang, Bao-Rong, Garraux, Gaetan, Chung, Sun Ju, Joong, Kim Yun, Winkelmann, Juliane, Sue, Carolyn M., Eng-King, Tan, Damásio, Joana, Klivényi, Péter, Kostic, Vladimir S., Arkadir, David, Martikainen, Mika, Borges, Vanderci, Hertz, Jens Michael, Brighina, Laura, Spitz, Mariana, Suchowersky, Oksana, Riess, Olaf, Parimal, Das, Mollenhauer, Brit, Gatto, Emilia M., Skaalum, Petersen Maria, Wu, Ruey-Meei, Illarioshkin, Sergey N., Valente, Enza Maria, Aasly, Jan O., Aasly, Anna, N, Alcalay Roy, Thaler, Avner, Farrer, Matthew J., Kathrin, Brockmann, Corvol, Jean-Christophe, Klein, Christine, Albanese, Alberto, Alcalay, Roy N., Aldakheel, Amaal, Alkhairallah, Thamer, Bashayer, Al-Mubarak, Al-Tassan, Nada, Paolo, Amami, Araujo, Leite Marco Antonio, Ferraz, Henrique Ballalai, Bardien, Soraya, Melinda, Barkhuizen, Barrett, Matthew J., Ba sak, A. Nazl I, Bilgic, Basar, Bloem, Bastiaan R., Bonifati, Vincenzo, Brockmann, Kathrin, Cesarini, Martin Emiliano, Ju, Chung Sun, Guedes, Leonor Correia, Lorraine, Clark, Dieguez, Elena, Dorszewska, Jolanta, Fung, Victor S. C., Pilar, Gómez-Garre, Hattori, Nobutaka, Faycel, Hentati, Januario, Cristina, Maestre, Silvia Jesús, Kaasinen, Valtteri, Hiroshi, Kataoka, Kievit, Anneke A., Kim, Yun Joong, Christine, Klein, Kuhlenbäumer, Gregor, Lim, Jia Lun, Timothy, Lynch, Marder, Karen, May, Patrick, McCarthy, Allan, Briceno, Hugo Morales, Morris, Huw, Mosejova, Alexandra, Cakmak, Özgür Öztop, Orr-Urtreger, Avi, Pachchek, Sinthuja, Periñ\'an, Maria Teresa, Procopio, Radha, Ruiz-Martinez, Javier, Pereira, João Santos, Satake, Wataru, Soto-Beasley, Alexandra I., Sousa, Mário, Tan, Eng-King, Tepge c, Fatih, Uyguner, Oya, Walton, Ronald L., H, Williams-Gray Caroline, Isabel, Wurster, and Bao-Rong, Zhang

Abstract

BACKGROUND: As gene-targeted therapies are increasingly being developed for Parkinson's disease (PD), identifying and characterizing carriers of specific genetic pathogenic variants is imperative. Only a small fraction of the estimated number of subjects with monogenic PD worldwide are currently represented in the literature and availability of clinical data and clinical trial-ready cohorts is limited. OBJECTIVE: The objectives are to (1) establish an international cohort of affected and unaffected individuals with PD-linked variants; (2) provide harmonized and quality-controlled clinical characterization data for each included individual; and (3) further promote collaboration of researchers in the field of monogenic PD. METHODS: We conducted a worldwide, systematic online survey to collect individual-level data on individuals with PD-linked variants in SNCA, LRRK2 VPS35, PRKN, PINK1, DJ-1, as well as selected pathogenic and risk variants in GBA and corresponding demographic, clinical, and genetic data. All registered cases underwent thorough quality checks, and pathogenicity scoring of the variants and genotype-phenotype relationships were analyzed. RESULTS: We collected 3888 variant carriers for our analyses, reported by 92 centers (42 countries) worldwide. Of the included individuals 3185 had a diagnosis of PD (ie, 1306 LRRK2, 115 SNCA, 23 VPS35 429 PRKN, 75 PINK1, 13 DJ-1, and 1224 GBA) and 703 were unaffected (ie, 328 LRRK2, 32 SNCA, 3 VPS35, 1 PRKN, 1 PINK1, and 338 GBA). In total, we identified 269 different pathogenic variants; 1322 individuals in our cohort (34\%) were indicated as not previously published. CONCLUSIONS: Within the MJFF Global Genetic PD Study Group, we (1) established the largest international cohort of affected and unaffected individuals carrying PD-linked variants; (2) provide harmonized and quality-controlled clinical and genetic data for each included individual; (3) promote collaboration in the field of genetic PD with a view toward cl

Published
2023

30. Embracing Monogenic Parkinson's Disease: The MJFF Global Genetic PD Cohort

Author

Vollstedt, E.J., Schaake, S., Lohmann, K., Padmanabhan, S., Brice, A., Lesage, S., Tesson, C., Vidailhet, M., Wurster, I., Hentati, F., Mirelman, A., Giladi, N., Marder, K., Waters, C., Fahn, S., Kasten, M., Brüggemann, N., Borsche, M., Foroud, T., Tolosa, E., Garrido, A., Annesi, G., Gagliardi, M., Bozi, M., Stefanis, L., Ferreira, J.J., Guedes, L. Correia, Avenali, M., Petrucci, S., Clark, L., Fedotova, E.Y., Abramycheva, N.Y., Alvarez, V., Menéndez-González, M., Maestre, S. Jesús, Gómez-Garre, P., Mir, P., Belin, A.C., Ran, C., Lin, Chih-Yu, Kuo, M.C., Crosiers, D., Wszolek, Z.K., Ross, O.A., Jankovic, J., Nishioka, K., Funayama, M., Clarimon, J., Williams-Gray, C.H., Camacho, M., Cornejo-Olivas, M., Torres-Ramirez, L., Wu, Y.R., Lee-Chen, G.J., Morgadinho, A., Pulkes, T., Termsarasab, P., Berg, D., Kuhlenbäumer, G., Kühn, A.A., Borngräber, F., Michele, G. de, Rosa, A. De, Zimprich, A., Puschmann, A., Mellick, G.D., Dorszewska, J., Carr, J., Ferese, R., Gambardella, S., Chase, B., Markopoulou, K., Satake, W., Toda, T., Rossi, M., Merello, M., Lynch, T., Olszewska, D.A., Lim, S.Y., Ahmad-Annuar, A., Tan, A.H., Al-Mubarak, B., Hanagasi, H., Koziorowski, D., Ertan, S., Genç, G., Aguiar, P. de Carvalho, Barkhuizen, M., Pimentel, M.M.G., Saunders-Pullman, R., Warrenburg, B.P.C. van de, Bressman, S., Toft, M., Appel-Cresswell, S., Lang, A.E., Skorvanek, M., Boon, A.J., Krüger, R., Sammler, E.M., Tumas, V., et al., Vollstedt, E.J., Schaake, S., Lohmann, K., Padmanabhan, S., Brice, A., Lesage, S., Tesson, C., Vidailhet, M., Wurster, I., Hentati, F., Mirelman, A., Giladi, N., Marder, K., Waters, C., Fahn, S., Kasten, M., Brüggemann, N., Borsche, M., Foroud, T., Tolosa, E., Garrido, A., Annesi, G., Gagliardi, M., Bozi, M., Stefanis, L., Ferreira, J.J., Guedes, L. Correia, Avenali, M., Petrucci, S., Clark, L., Fedotova, E.Y., Abramycheva, N.Y., Alvarez, V., Menéndez-González, M., Maestre, S. Jesús, Gómez-Garre, P., Mir, P., Belin, A.C., Ran, C., Lin, Chih-Yu, Kuo, M.C., Crosiers, D., Wszolek, Z.K., Ross, O.A., Jankovic, J., Nishioka, K., Funayama, M., Clarimon, J., Williams-Gray, C.H., Camacho, M., Cornejo-Olivas, M., Torres-Ramirez, L., Wu, Y.R., Lee-Chen, G.J., Morgadinho, A., Pulkes, T., Termsarasab, P., Berg, D., Kuhlenbäumer, G., Kühn, A.A., Borngräber, F., Michele, G. de, Rosa, A. De, Zimprich, A., Puschmann, A., Mellick, G.D., Dorszewska, J., Carr, J., Ferese, R., Gambardella, S., Chase, B., Markopoulou, K., Satake, W., Toda, T., Rossi, M., Merello, M., Lynch, T., Olszewska, D.A., Lim, S.Y., Ahmad-Annuar, A., Tan, A.H., Al-Mubarak, B., Hanagasi, H., Koziorowski, D., Ertan, S., Genç, G., Aguiar, P. de Carvalho, Barkhuizen, M., Pimentel, M.M.G., Saunders-Pullman, R., Warrenburg, B.P.C. van de, Bressman, S., Toft, M., Appel-Cresswell, S., Lang, A.E., Skorvanek, M., Boon, A.J., Krüger, R., Sammler, E.M., and Tumas, V., et al.

Abstract

Item does not contain fulltext, BACKGROUND: As gene-targeted therapies are increasingly being developed for Parkinson's disease (PD), identifying and characterizing carriers of specific genetic pathogenic variants is imperative. Only a small fraction of the estimated number of subjects with monogenic PD worldwide are currently represented in the literature and availability of clinical data and clinical trial-ready cohorts is limited. OBJECTIVE: The objectives are to (1) establish an international cohort of affected and unaffected individuals with PD-linked variants; (2) provide harmonized and quality-controlled clinical characterization data for each included individual; and (3) further promote collaboration of researchers in the field of monogenic PD. METHODS: We conducted a worldwide, systematic online survey to collect individual-level data on individuals with PD-linked variants in SNCA, LRRK2, VPS35, PRKN, PINK1, DJ-1, as well as selected pathogenic and risk variants in GBA and corresponding demographic, clinical, and genetic data. All registered cases underwent thorough quality checks, and pathogenicity scoring of the variants and genotype-phenotype relationships were analyzed. RESULTS: We collected 3888 variant carriers for our analyses, reported by 92 centers (42 countries) worldwide. Of the included individuals, 3185 had a diagnosis of PD (ie, 1306 LRRK2, 115 SNCA, 23 VPS35, 429 PRKN, 75 PINK1, 13 DJ-1, and 1224 GBA) and 703 were unaffected (ie, 328 LRRK2, 32 SNCA, 3 VPS35, 1 PRKN, 1 PINK1, and 338 GBA). In total, we identified 269 different pathogenic variants; 1322 individuals in our cohort (34%) were indicated as not previously published. CONCLUSIONS: Within the MJFF Global Genetic PD Study Group, we (1) established the largest international cohort of affected and unaffected individuals carrying PD-linked variants; (2) provide harmonized and quality-controlled clinical and genetic data for each included individual; (3) promote collaboration in the field of genetic PD with a view toward

Published
2023

31. Establishing an online resource to facilitate global collaboration and inclusion of underrepresented populations: Experience from the MJFF Global Genetic Parkinson's Disease Project.

Author

Vollstedt, E.J., Madoev, H., Aasly, A., Ahmad-Annuar, A., Al-Mubarak, B., Alcalay, R.N., Alvarez, V., Amorin, I., Annesi, G., Arkadir, D., Bardien, S., Barker, R.A., Barkhuizen, M., Basak, A.N., Bonifati, V., Boon, A., Brighina, L., Brockmann, K., Carmine Belin, A., Carr, J., Clarimon, J., Cornejo-Olivas, M., Correia Guedes, L., Corvol, J.C., Crosiers, D., Damásio, J., Das, P., Carvalho Aguiar, P. de, Rosa, A. De, Dorszewska, J., Ertan, S., Ferese, R., Ferreira, J., Gatto, E., Genç, G., Giladi, N., Gómez-Garre, P., Hanagasi, H., Hattori, N., Hentati, F., Hoffman-Zacharska, D., Illarioshkin, S.N., Jankovic, J., Jesús, S., Kaasinen, V., Kievit, A., Klivenyi, P., Kostic, V., Koziorowski, D., Kühn, A.A., Lang, A.E., Lim, S.Y., Lin, Chih-Yu, Lohmann, K., Markovic, V., Martikainen, M.H., Mellick, G., Merello, M., Milanowski, L., Mir, P., Öztop-Çakmak, Ö., Pimentel, M.M.G., Pulkes, T., Puschmann, A., Rogaeva, E., Sammler, E.M., Skaalum Petersen, M., Skorvanek, M., Spitz, M., Suchowersky, O., Tan, A.H., Termsarasab, P., Thaler, Avner, Tumas, V., Valente, E.M., Warrenburg, B.P.C. van de, Williams-Gray, C.H., Wu, R.M., Zhang, B., Zimprich, A., Solle, J., Padmanabhan, S., Klein, Christine, Vollstedt, E.J., Madoev, H., Aasly, A., Ahmad-Annuar, A., Al-Mubarak, B., Alcalay, R.N., Alvarez, V., Amorin, I., Annesi, G., Arkadir, D., Bardien, S., Barker, R.A., Barkhuizen, M., Basak, A.N., Bonifati, V., Boon, A., Brighina, L., Brockmann, K., Carmine Belin, A., Carr, J., Clarimon, J., Cornejo-Olivas, M., Correia Guedes, L., Corvol, J.C., Crosiers, D., Damásio, J., Das, P., Carvalho Aguiar, P. de, Rosa, A. De, Dorszewska, J., Ertan, S., Ferese, R., Ferreira, J., Gatto, E., Genç, G., Giladi, N., Gómez-Garre, P., Hanagasi, H., Hattori, N., Hentati, F., Hoffman-Zacharska, D., Illarioshkin, S.N., Jankovic, J., Jesús, S., Kaasinen, V., Kievit, A., Klivenyi, P., Kostic, V., Koziorowski, D., Kühn, A.A., Lang, A.E., Lim, S.Y., Lin, Chih-Yu, Lohmann, K., Markovic, V., Martikainen, M.H., Mellick, G., Merello, M., Milanowski, L., Mir, P., Öztop-Çakmak, Ö., Pimentel, M.M.G., Pulkes, T., Puschmann, A., Rogaeva, E., Sammler, E.M., Skaalum Petersen, M., Skorvanek, M., Spitz, M., Suchowersky, O., Tan, A.H., Termsarasab, P., Thaler, Avner, Tumas, V., Valente, E.M., Warrenburg, B.P.C. van de, Williams-Gray, C.H., Wu, R.M., Zhang, B., Zimprich, A., Solle, J., Padmanabhan, S., and Klein, Christine

Abstract

Item does not contain fulltext, Parkinson's disease (PD) is the fastest-growing neurodegenerative disorder, currently affecting ~7 million people worldwide. PD is clinically and genetically heterogeneous, with at least 10% of all cases explained by a monogenic cause or strong genetic risk factor. However, the vast majority of our present data on monogenic PD is based on the investigation of patients of European White ancestry, leaving a large knowledge gap on monogenic PD in underrepresented populations. Gene-targeted therapies are being developed at a fast pace and have started entering clinical trials. In light of these developments, building a global network of centers working on monogenic PD, fostering collaborative research, and establishing a clinical trial-ready cohort is imperative. Based on a systematic review of the English literature on monogenic PD and a successful team science approach, we have built up a network of 59 sites worldwide and have collected information on the availability of data, biomaterials, and facilities. To enable access to this resource and to foster collaboration across centers, as well as between academia and industry, we have developed an interactive map and online tool allowing for a quick overview of available resources, along with an option to filter for specific items of interest. This initiative is currently being merged with the Global Parkinson's Genetics Program (GP2), which will attract additional centers with a focus on underrepresented sites. This growing resource and tool will facilitate collaborative research and impact the development and testing of new therapies for monogenic and potentially for idiopathic PD patients.

Published
2023

32. Establishing an online resource to facilitate global collaboration and inclusion of underrepresented populations:Experience from the MJFF Global Genetic Parkinson's Disease Project

Author

Vollstedt, Eva Juliane, Madoev, Harutyun, Aasly, Anna, Ahmad-Annuar, Azlina, Al-Mubarak, Bashayer, Alcalay, Roy N., Alvarez, Victoria, Amorin, Ignacio, Annesi, Grazia, Arkadir, David, Bardien, Soraya, Barker, Roger A., Barkhuizen, Melinda, Basak, A. Nazli, Bonifati, Vincenzo, Boon, Agnita, Brighina, Laura, Brockmann, Kathrin, Carmine Belin, Andrea, Carr, Jonathan, Clarimon, Jordi, Cornejo-Olivas, Mario, Correia Guedes, Leonor, Corvol, Jean Christophe, Crosiers, David, Damásio, Joana, Das, Parimal, de Carvalho Aguiar, Patricia, De Rosa, Anna, Dorszewska, Jolanta, Ertan, Sibel, Ferese, Rosangela, Ferreira, Joaquim, Gatto, Emilia, Genç, Gençer, Giladi, Nir, Gómez-Garre, Pilar, Hanagasi, Hasmet, Hattori, Nobutaka, Hentati, Faycal, Hoffman-Zacharska, Dorota, Illarioshkin, Sergey N., Jankovic, Joseph, Jesús, Silvia, Kaasinen, Valtteri, Kievit, Anneke, Klivenyi, Peter, Kostic, Vladimir, Koziorowski, Dariusz, Kühn, Andrea A., Lang, Anthony E., Lim, Shen Yang, Lin, Chin Hsien, Lohmann, Katja, Markovic, Vladana, Martikainen, Mika Henrik, Mellick, George, Merello, Marcelo, Milanowski, Lukasz, Mir, Pablo, Öztop-Çakmak, Özgür, Pimentel, Márcia Mattos Gonçalves, Pulkes, Teeratorn, Puschmann, Andreas, Rogaeva, Ekaterina, Sammler, Esther M., Skaalum Petersen, Maria, Skorvanek, Matej, Spitz, Mariana, Suchowersky, Oksana, Tan, Ai Huey, Termsarasab, Pichet, Thaler, Avner, Tumas, Vitor, Valente, Enza Maria, van de Warrenburg, Bart, Williams-Gray, Caroline H., Wu, Ruey Mei, Zhang, Baorong, Zimprich, Alexander, Solle, Justin, Padmanabhan, Shalini, Klein, Christine, Vollstedt, Eva Juliane, Madoev, Harutyun, Aasly, Anna, Ahmad-Annuar, Azlina, Al-Mubarak, Bashayer, Alcalay, Roy N., Alvarez, Victoria, Amorin, Ignacio, Annesi, Grazia, Arkadir, David, Bardien, Soraya, Barker, Roger A., Barkhuizen, Melinda, Basak, A. Nazli, Bonifati, Vincenzo, Boon, Agnita, Brighina, Laura, Brockmann, Kathrin, Carmine Belin, Andrea, Carr, Jonathan, Clarimon, Jordi, Cornejo-Olivas, Mario, Correia Guedes, Leonor, Corvol, Jean Christophe, Crosiers, David, Damásio, Joana, Das, Parimal, de Carvalho Aguiar, Patricia, De Rosa, Anna, Dorszewska, Jolanta, Ertan, Sibel, Ferese, Rosangela, Ferreira, Joaquim, Gatto, Emilia, Genç, Gençer, Giladi, Nir, Gómez-Garre, Pilar, Hanagasi, Hasmet, Hattori, Nobutaka, Hentati, Faycal, Hoffman-Zacharska, Dorota, Illarioshkin, Sergey N., Jankovic, Joseph, Jesús, Silvia, Kaasinen, Valtteri, Kievit, Anneke, Klivenyi, Peter, Kostic, Vladimir, Koziorowski, Dariusz, Kühn, Andrea A., Lang, Anthony E., Lim, Shen Yang, Lin, Chin Hsien, Lohmann, Katja, Markovic, Vladana, Martikainen, Mika Henrik, Mellick, George, Merello, Marcelo, Milanowski, Lukasz, Mir, Pablo, Öztop-Çakmak, Özgür, Pimentel, Márcia Mattos Gonçalves, Pulkes, Teeratorn, Puschmann, Andreas, Rogaeva, Ekaterina, Sammler, Esther M., Skaalum Petersen, Maria, Skorvanek, Matej, Spitz, Mariana, Suchowersky, Oksana, Tan, Ai Huey, Termsarasab, Pichet, Thaler, Avner, Tumas, Vitor, Valente, Enza Maria, van de Warrenburg, Bart, Williams-Gray, Caroline H., Wu, Ruey Mei, Zhang, Baorong, Zimprich, Alexander, Solle, Justin, Padmanabhan, Shalini, and Klein, Christine

Abstract

Parkinson's disease (PD) is the fastest-growing neurodegenerative disorder, currently affecting ~7 million people worldwide. PD is clinically and genetically heterogeneous, with at least 10% of all cases explained by a monogenic cause or strong genetic risk factor. However, the vast majority of our present data on monogenic PD is based on the investigation of patients of European White ancestry, leaving a large knowledge gap on monogenic PD in underrepresented populations. Gene-targeted therapies are being developed at a fast pace and have started entering clinical trials. In light of these developments, building a global network of centers working on monogenic PD, fostering collaborative research, and establishing a clinical trial-ready cohort is imperative. Based on a systematic review of the English literature on monogenic PD and a successful team science approach, we have built up a network of 59 sites worldwide and have collected information on the availability of data, biomaterials, and facilities. To enable access to this resource and to foster collaboration across centers, as well as between academia and industry, we have developed an interactive map and online tool allowing for a quick overview of available resources, along with an option to filter for specific items of interest. This initiative is currently being merged with the Global Parkinson's Genetics Program (GP2), which will attract additional centers with a focus on underrepresented sites. This growing resource and tool will facilitate collaborative research and impact the development and testing of new therapies for monogenic and potentially for idiopathic PD patients.

Published
2023

33. Embracing Monogenic Parkinson's Disease: The MJFF Global Genetic PD Cohort

Author

Michael J. Fox Foundation for Parkinson's Research, Vollstedt, Eva-Juliane, Schaake, Susen, Lohmann, Katja, Padmanabhan, Shalini, Brice, Alexis, Lesage, Suzanne, Tesson, Christelle, Vidailhet, Marie, Wurster, Isabel, Hentati, Faycel, Mirelman, Anat, Giladi, Nir, Marder, Karen, Waters, Cheryl, Fahn, Stanley, Kasten, Meike, Brüggemann, Norbert, Borsche, Max, Foroud, Tatiana, Tolosa, Eduardo, Garrido, Alicia, Annesi, Grazia, Gagliardi, Monica, Bozi, Maria, Stefanis, Leonidas, Ferreira, Joaquim, Correia Guedes, Leonor, Avenali, Micol, Petrucci, Simona, Clark, Lorraine, Fedotova, Ekaterina Y., Abramycheva, Natalya Y., Alvarez, Victoria, Menéndez-González, Manuel, Jesús Maestre, Silvia, Gómez-Garre, Pilar, Mir, Pablo, Belin, Andrea Carmine, Ran, Caroline, Lin, Chin-Hsien, Kuo, Ming-Che, Crosiers, David, Wszolek, Zbigniew K., Ross, Owen A., Jankovic, Joseph, Nishioka, Kenya, Funayama, Manabu, Clarimon, Jordi, Williams-Gray, Caroline H., Camacho, Marta, Cornejo-Olivas, Mario, Torres-Ramírez, Luis, Wu, Yih-Ru, Lee-Chen, Guey-Jen, Morgadinho, Ana, Pulkes, Teeratorn, Termsarasab, Pichet, Berg, Daniela, Kuhlenbäumer, Gregor, Kühn, Andrea A., Borngräber, Friederike, Michele, Giuseppe de, Rosa, Anna De, Zimprich, Alexander, Puschmann, Andreas, Mellick, George D., Dorszewska, Jolanta, Carr, Jonathan, Ferese, Rosangela, Gambardella, Stefano, Chase, Bruce, Markopoulou, Katerina, Satake, Wataru, Toda, Tatsushi, Rossi, Malco, Merello, Marcelo, Lynch, Timothy, Olszewska, Diana A., Lim, Shen-Yang, Ahmad-Annuar, Azlina, Tan, Ai Huey, Al-Mubarak, Bashayer, Hanagasi, Hasmet, Koziorowski, Dariusz, Ertan, Sibel, Genç, Gençer, Aguiar, Patricia de Carvalho, Barkhuizen, Melinda, Pimentel, Marcia M. G., Saunders-Pullman, Rachel, Warrenburg, Bart van de, Bressman, Susan, Toft, Mathias, Appel-Cresswell, Silke, Lang, Anthony E., Skorvanek, Matej, Boon, Agnita J. W., Krüger, Rejko, Sammler, Esther M., Tumas, Vitor, Zhang, Bao-Rong, Garraux, Gaetan, Chung, Sun Ju, Kim, Yun Joong, Winkelmann, Juliane, Sue, Carolyn M., Tan, Eng-King, Damásio, Joana, Klivényi, Péter, Kostic, Vladimir S., Arkadir, David, Martikainen, Mika, Borges, Vanderci, Hertz, Jens Michael, Brighina, Laura, Spitz, Mariana, Suchowersky, Oksana, Riess, Olaf, Das, Parimal, Mollenhauer, Brit, Gatto, Emilia M., Petersen, Maria Skaalum, Hattori, Nobutaka, Wu, Ruey-Meei, Illarioshkin, Sergey N., Valente, Enza Maria, Aasly, Jan O., Aasly, Anna, Alcalay, Roy N., Thaler, Avner, Farrer, Matthew J., Brockmann, Kathrin, Corvol, Jean-Christophe, Klein, Christine, on behalf of the MJFF Global Genetic Parkinson's Disease Study Group, Michael J. Fox Foundation for Parkinson's Research, Vollstedt, Eva-Juliane, Schaake, Susen, Lohmann, Katja, Padmanabhan, Shalini, Brice, Alexis, Lesage, Suzanne, Tesson, Christelle, Vidailhet, Marie, Wurster, Isabel, Hentati, Faycel, Mirelman, Anat, Giladi, Nir, Marder, Karen, Waters, Cheryl, Fahn, Stanley, Kasten, Meike, Brüggemann, Norbert, Borsche, Max, Foroud, Tatiana, Tolosa, Eduardo, Garrido, Alicia, Annesi, Grazia, Gagliardi, Monica, Bozi, Maria, Stefanis, Leonidas, Ferreira, Joaquim, Correia Guedes, Leonor, Avenali, Micol, Petrucci, Simona, Clark, Lorraine, Fedotova, Ekaterina Y., Abramycheva, Natalya Y., Alvarez, Victoria, Menéndez-González, Manuel, Jesús Maestre, Silvia, Gómez-Garre, Pilar, Mir, Pablo, Belin, Andrea Carmine, Ran, Caroline, Lin, Chin-Hsien, Kuo, Ming-Che, Crosiers, David, Wszolek, Zbigniew K., Ross, Owen A., Jankovic, Joseph, Nishioka, Kenya, Funayama, Manabu, Clarimon, Jordi, Williams-Gray, Caroline H., Camacho, Marta, Cornejo-Olivas, Mario, Torres-Ramírez, Luis, Wu, Yih-Ru, Lee-Chen, Guey-Jen, Morgadinho, Ana, Pulkes, Teeratorn, Termsarasab, Pichet, Berg, Daniela, Kuhlenbäumer, Gregor, Kühn, Andrea A., Borngräber, Friederike, Michele, Giuseppe de, Rosa, Anna De, Zimprich, Alexander, Puschmann, Andreas, Mellick, George D., Dorszewska, Jolanta, Carr, Jonathan, Ferese, Rosangela, Gambardella, Stefano, Chase, Bruce, Markopoulou, Katerina, Satake, Wataru, Toda, Tatsushi, Rossi, Malco, Merello, Marcelo, Lynch, Timothy, Olszewska, Diana A., Lim, Shen-Yang, Ahmad-Annuar, Azlina, Tan, Ai Huey, Al-Mubarak, Bashayer, Hanagasi, Hasmet, Koziorowski, Dariusz, Ertan, Sibel, Genç, Gençer, Aguiar, Patricia de Carvalho, Barkhuizen, Melinda, Pimentel, Marcia M. G., Saunders-Pullman, Rachel, Warrenburg, Bart van de, Bressman, Susan, Toft, Mathias, Appel-Cresswell, Silke, Lang, Anthony E., Skorvanek, Matej, Boon, Agnita J. W., Krüger, Rejko, Sammler, Esther M., Tumas, Vitor, Zhang, Bao-Rong, Garraux, Gaetan, Chung, Sun Ju, Kim, Yun Joong, Winkelmann, Juliane, Sue, Carolyn M., Tan, Eng-King, Damásio, Joana, Klivényi, Péter, Kostic, Vladimir S., Arkadir, David, Martikainen, Mika, Borges, Vanderci, Hertz, Jens Michael, Brighina, Laura, Spitz, Mariana, Suchowersky, Oksana, Riess, Olaf, Das, Parimal, Mollenhauer, Brit, Gatto, Emilia M., Petersen, Maria Skaalum, Hattori, Nobutaka, Wu, Ruey-Meei, Illarioshkin, Sergey N., Valente, Enza Maria, Aasly, Jan O., Aasly, Anna, Alcalay, Roy N., Thaler, Avner, Farrer, Matthew J., Brockmann, Kathrin, Corvol, Jean-Christophe, Klein, Christine, and on behalf of the MJFF Global Genetic Parkinson's Disease Study Group

Abstract

[Background] As gene-targeted therapies are increasingly being developed for Parkinson's disease (PD), identifying and characterizing carriers of specific genetic pathogenic variants is imperative. Only a small fraction of the estimated number of subjects with monogenic PD worldwide are currently represented in the literature and availability of clinical data and clinical trial-ready cohorts is limited., [Objective] The objectives are to (1) establish an international cohort of affected and unaffected individuals with PD-linked variants; (2) provide harmonized and quality-controlled clinical characterization data for each included individual; and (3) further promote collaboration of researchers in the field of monogenic PD., [Methods] We conducted a worldwide, systematic online survey to collect individual-level data on individuals with PD-linked variants in SNCA, LRRK2, VPS35, PRKN, PINK1, DJ-1, as well as selected pathogenic and risk variants in GBA and corresponding demographic, clinical, and genetic data. All registered cases underwent thorough quality checks, and pathogenicity scoring of the variants and genotype–phenotype relationships were analyzed., [Results] We collected 3888 variant carriers for our analyses, reported by 92 centers (42 countries) worldwide. Of the included individuals, 3185 had a diagnosis of PD (ie, 1306 LRRK2, 115 SNCA, 23 VPS35, 429 PRKN, 75 PINK1, 13 DJ-1, and 1224 GBA) and 703 were unaffected (ie, 328 LRRK2, 32 SNCA, 3 VPS35, 1 PRKN, 1 PINK1, and 338 GBA). In total, we identified 269 different pathogenic variants; 1322 individuals in our cohort (34%) were indicated as not previously published., [Conclusions] Within the MJFF Global Genetic PD Study Group, we (1) established the largest international cohort of affected and unaffected individuals carrying PD-linked variants; (2) provide harmonized and quality-controlled clinical and genetic data for each included individual; (3) promote collaboration in the field of genetic PD with a view toward clinical and genetic stratification of patients for gene-targeted clinical trials. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Published
2023

34. Establishing an online resource to facilitate global collaboration and inclusion of underrepresented populations: Experience from the MJFF Global Genetic Parkinson's Disease Project

Author

Michael J. Fox Foundation for Parkinson's Research, Cambridge Biomedical Research Centre, National Institute for Health and Care Research (US), Vollstedt, Eva-Juliane, Madoev, Harutyun, Aasly, Anna, Ahmad-Annuar, Azlina, Al-Mubarak, Bashayer, Alcalay, Roy N., Álvarez, Victoria, Amorín, Ignacio, Annesi, Grazia, Arkadir, David, Bardien, Soraya, Barker, Roger A., Barkhuizen, Melinda, Basak, A. Nazli, Bonifati, Vincenzo, Boon, Agnita, Brighina, Laura, Brockmann, Kathrin, Carmine Belin, Andrea, Carr, Jonathan, Clarimon, Jordi, Cornejo-Olivas, Mario, Correia Guedes, Leonor, Corvol, Jean-Christophe, Crosiers, David, Damásio, Joana, Das, Parimal, Aguiar, Patricia de Carvalho, Rosa, Anna De, Dorszewska, Jolanta, Ertan, Sibel, Ferese, Rosangela, Ferreira, Joaquim, Gatto, Emilia, Genç, Gençer, Giladi, Nir, Gómez-Garre, Pilar, Hanagasi, Hasmet, Hattori, Nobutaka, Hentati, Faycal, Hoffman-Zacharska, Dorota, Illarioshkin, Sergey N., Jankovic, Joseph, Jesús Maestre, Silvia, Kaasinen, Valtteri, Kievit, Anneke, Klivenyi, Peter, Kostic, Vladimir, Koziorowski, Dariusz, Kühn, Andrea A., Lang, Anthony E., Lim, Shen-Yang, Lin, Chin-Hsien, Lohmann, Katja, Markovic, Vladana, Martikainen, Mika Henrik, Mellick, George, Merello, Marcelo, Milanowski, Lukasz, Mir, Pablo, Öztop-Çakmak, Özgür, Pimentel, Márcia Mattos Gonçalves, Pulkes, Teeratorn, Puschmann, Andreas, Rogaeva, Ekaterina, Sammler, Esther M., Skaalum Petersen, Maria, Skorvanek, Matej, Spitz, Mariana, Suchowersky, Oksana, Tan, Ai Huey, Termsarasab, Pichet, Thaler, Avner, Tumas, Vitor, Valente, Enza Maria, Warrenburg, Bart van de, Williams-Gray, Caroline H., Wu, Ruey-Mei, Zhang, Baorong, Zimprich, Alexander, Solle, Justin, Padmanabhan, Shalini, Klein, Christine, Michael J. Fox Foundation for Parkinson's Research, Cambridge Biomedical Research Centre, National Institute for Health and Care Research (US), Vollstedt, Eva-Juliane, Madoev, Harutyun, Aasly, Anna, Ahmad-Annuar, Azlina, Al-Mubarak, Bashayer, Alcalay, Roy N., Álvarez, Victoria, Amorín, Ignacio, Annesi, Grazia, Arkadir, David, Bardien, Soraya, Barker, Roger A., Barkhuizen, Melinda, Basak, A. Nazli, Bonifati, Vincenzo, Boon, Agnita, Brighina, Laura, Brockmann, Kathrin, Carmine Belin, Andrea, Carr, Jonathan, Clarimon, Jordi, Cornejo-Olivas, Mario, Correia Guedes, Leonor, Corvol, Jean-Christophe, Crosiers, David, Damásio, Joana, Das, Parimal, Aguiar, Patricia de Carvalho, Rosa, Anna De, Dorszewska, Jolanta, Ertan, Sibel, Ferese, Rosangela, Ferreira, Joaquim, Gatto, Emilia, Genç, Gençer, Giladi, Nir, Gómez-Garre, Pilar, Hanagasi, Hasmet, Hattori, Nobutaka, Hentati, Faycal, Hoffman-Zacharska, Dorota, Illarioshkin, Sergey N., Jankovic, Joseph, Jesús Maestre, Silvia, Kaasinen, Valtteri, Kievit, Anneke, Klivenyi, Peter, Kostic, Vladimir, Koziorowski, Dariusz, Kühn, Andrea A., Lang, Anthony E., Lim, Shen-Yang, Lin, Chin-Hsien, Lohmann, Katja, Markovic, Vladana, Martikainen, Mika Henrik, Mellick, George, Merello, Marcelo, Milanowski, Lukasz, Mir, Pablo, Öztop-Çakmak, Özgür, Pimentel, Márcia Mattos Gonçalves, Pulkes, Teeratorn, Puschmann, Andreas, Rogaeva, Ekaterina, Sammler, Esther M., Skaalum Petersen, Maria, Skorvanek, Matej, Spitz, Mariana, Suchowersky, Oksana, Tan, Ai Huey, Termsarasab, Pichet, Thaler, Avner, Tumas, Vitor, Valente, Enza Maria, Warrenburg, Bart van de, Williams-Gray, Caroline H., Wu, Ruey-Mei, Zhang, Baorong, Zimprich, Alexander, Solle, Justin, Padmanabhan, Shalini, and Klein, Christine

Abstract

Parkinson’s disease (PD) is the fastest-growing neurodegenerative disorder, currently affecting ~7 million people worldwide. PD is clinically and genetically heterogeneous, with at least 10% of all cases explained by a monogenic cause or strong genetic risk factor. However, the vast majority of our present data on monogenic PD is based on the investigation of patients of European White ancestry, leaving a large knowledge gap on monogenic PD in underrepresented populations. Gene-targeted therapies are being developed at a fast pace and have started entering clinical trials. In light of these developments, building a global network of centers working on monogenic PD, fostering collaborative research, and establishing a clinical trial-ready cohort is imperative. Based on a systematic review of the English literature on monogenic PD and a successful team science approach, we have built up a network of 59 sites worldwide and have collected information on the availability of data, biomaterials, and facilities. To enable access to this resource and to foster collaboration across centers, as well as between academia and industry, we have developed an interactive map and online tool allowing for a quick overview of available resources, along with an option to filter for specific items of interest. This initiative is currently being merged with the Global Parkinson’s Genetics Program (GP2), which will attract additional centers with a focus on underrepresented sites. This growing resource and tool will facilitate collaborative research and impact the development and testing of new therapies for monogenic and potentially for idiopathic PD patients.

Published
2023

35. Embracing monogenic Parkinson's disease: the MJFF Global Genetic PD cohort

Author

Ertan, Fatoş Sibel (ORCID 0000-0003-1339-243X & YÖK ID 112829), Vollstedt, E.J.; Schaake, S.; Lohmann, K.; Padmanabhan, S.; Brice, A.; Lesage, S.; Tesson, C.; Vidailhet, M.; Wurster, I.; Hentati, F.; Mirelman, A.; Giladi, N.; Marder, K.; Waters, C.; Fahn, S.; Kasten, M.; Brüggemann, N.; Borsche, M.; Foroud, T.; Tolosa, E.; Garrido, A.; Annesi, G.; Gagliardi, M.; Bozi, M.; Stefanis, L.; Ferreira, J.J.; Guedes, L.C.; Avenali, M.; Petrucci, S.; Clark, L.; Fedotova, E.Y.; Abramycheva, N.Y.; Alvarez, V.; Menéndez-González, M.; Maestre, SJ.; Gómez-Garre, P.; Mir, P.; Belin, A.C.; Ran, C.; Lin, C.H.; Kuo, M.C.; Crosiers, D.; Wszolek, Z.K.; Ross, O.A.; Jankovic, J.; Nishioka, K.; Funayama, M.; Clarimon, J.; Williams-Gray, C.H.; Camacho, M.; Cornejo-Olivas, M.; Torres-Ramirez, L.; Wu, YR.; Lee-Chen, G.J.; Morgadinho, A.; Pulkes, T.; Termsarasab, P.; Berg, D.; Kuhlenbäumer, G.; Kühn, A.A.; Borngräber, F.; de Michele, G.; De Rosa, A.; Zimprich, A.; Puschmann, A.; Mellick, GD.; Dorszewska, J.; Carr, J.; Ferese, R.; Gambardella, S.; Chase, B.; Markopoulou, K.; Satake, W.; Toda, T.; Rossi, M.; Merello, M.; Lynch, T.; Olszewska, D.A.; Lim, S.Y.; Ahmad-Annuar, A.; Tan, A.H.; Al-Mubarak, B.; Hanagasi, H.; Koziorowski, D.; Genç, G.; Aguiar, P.D.; Barkhuizen, M.; Pimentel, M.M.G.; Saunders-Pullman, R.; van de Warrenburg, B.; Bressman, S.; Toft, M.; Appel-Cresswell, S.; Lang, A.E.; Skorvanek, M.; Boon, A.J.W.; Krüger, R.; Sammler, E.M.; Tumas, V.; Zhang, B.R.; Garraux, G.; Chung, SJ.; Kim, Y.J.; Winkelmann, J.; Sue, C.M.; Tan, E.K.; Damásio, J.; Klivényi, P.; Kostic, V.S.; Arkadir, D.; Martikainen, M.; Borges, V.; Hertz, J.M.; Brighina, L.; Spitz, M.; Suchowersky, O.; Riess, O.; Das, P.; Mollenhauer, B.; Gatto, E.M.; Petersen, M.S.; Hattori, N.; Wu, R.M.; Illarioshkin, S.N.; Valente, E.M.; Aasly, J.O.; Aasly, A.; Alcalay, R.N.; Thaler, A.; Farrer, M.J.; Brockmann, K.; Corvol, J.C.; Klein, C., School of Medicine, Ertan, Fatoş Sibel (ORCID 0000-0003-1339-243X & YÖK ID 112829), Vollstedt, E.J.; Schaake, S.; Lohmann, K.; Padmanabhan, S.; Brice, A.; Lesage, S.; Tesson, C.; Vidailhet, M.; Wurster, I.; Hentati, F.; Mirelman, A.; Giladi, N.; Marder, K.; Waters, C.; Fahn, S.; Kasten, M.; Brüggemann, N.; Borsche, M.; Foroud, T.; Tolosa, E.; Garrido, A.; Annesi, G.; Gagliardi, M.; Bozi, M.; Stefanis, L.; Ferreira, J.J.; Guedes, L.C.; Avenali, M.; Petrucci, S.; Clark, L.; Fedotova, E.Y.; Abramycheva, N.Y.; Alvarez, V.; Menéndez-González, M.; Maestre, SJ.; Gómez-Garre, P.; Mir, P.; Belin, A.C.; Ran, C.; Lin, C.H.; Kuo, M.C.; Crosiers, D.; Wszolek, Z.K.; Ross, O.A.; Jankovic, J.; Nishioka, K.; Funayama, M.; Clarimon, J.; Williams-Gray, C.H.; Camacho, M.; Cornejo-Olivas, M.; Torres-Ramirez, L.; Wu, YR.; Lee-Chen, G.J.; Morgadinho, A.; Pulkes, T.; Termsarasab, P.; Berg, D.; Kuhlenbäumer, G.; Kühn, A.A.; Borngräber, F.; de Michele, G.; De Rosa, A.; Zimprich, A.; Puschmann, A.; Mellick, GD.; Dorszewska, J.; Carr, J.; Ferese, R.; Gambardella, S.; Chase, B.; Markopoulou, K.; Satake, W.; Toda, T.; Rossi, M.; Merello, M.; Lynch, T.; Olszewska, D.A.; Lim, S.Y.; Ahmad-Annuar, A.; Tan, A.H.; Al-Mubarak, B.; Hanagasi, H.; Koziorowski, D.; Genç, G.; Aguiar, P.D.; Barkhuizen, M.; Pimentel, M.M.G.; Saunders-Pullman, R.; van de Warrenburg, B.; Bressman, S.; Toft, M.; Appel-Cresswell, S.; Lang, A.E.; Skorvanek, M.; Boon, A.J.W.; Krüger, R.; Sammler, E.M.; Tumas, V.; Zhang, B.R.; Garraux, G.; Chung, SJ.; Kim, Y.J.; Winkelmann, J.; Sue, C.M.; Tan, E.K.; Damásio, J.; Klivényi, P.; Kostic, V.S.; Arkadir, D.; Martikainen, M.; Borges, V.; Hertz, J.M.; Brighina, L.; Spitz, M.; Suchowersky, O.; Riess, O.; Das, P.; Mollenhauer, B.; Gatto, E.M.; Petersen, M.S.; Hattori, N.; Wu, R.M.; Illarioshkin, S.N.; Valente, E.M.; Aasly, J.O.; Aasly, A.; Alcalay, R.N.; Thaler, A.; Farrer, M.J.; Brockmann, K.; Corvol, J.C.; Klein, C., and School of Medicine

Abstract

Background: as gene-targeted therapies are increasingly being developed for Parkinson's disease (PD), identifying and characterizing carriers of specific genetic pathogenic variants is imperative. Only a small fraction of the estimated number of subjects with monogenic PD worldwide are currently represented in the literature and availability of clinical data and clinical trial-ready cohorts is limited. Objective: the objectives are to (1) establish an international cohort of affected and unaffected individuals with PD-linked variants; (2) provide harmonized and quality-controlled clinical characterization data for each included individual; and (3) further promote collaboration of researchers in the field of monogenic PD. Methods: we conducted a worldwide, systematic online survey to collect individual-level data on individuals with PD-linked variants in SNCA, LRRK2, VPS35, PRKN, PINK1, DJ-1, as well as selected pathogenic and risk variants in GBA and corresponding demographic, clinical, and genetic data. All registered cases underwent thorough quality checks, and pathogenicity scoring of the variants and genotype–phenotype relationships were analyzed. Results: we collected 3888 variant carriers for our analyses, reported by 92 centers (42 countries) worldwide. Of the included individuals, 3185 had a diagnosis of PD (ie, 1306 LRRK2, 115 SNCA, 23 VPS35, 429 PRKN, 75 PINK1, 13 DJ-1, and 1224 GBA) and 703 were unaffected (ie, 328 LRRK2, 32 SNCA, 3 VPS35, 1 PRKN, 1 PINK1, and 338 GBA). In total, we identified 269 different pathogenic variants; 1322 individuals in our cohort (34%) were indicated as not previously published. Conclusions: within the MJFF Global Genetic PD Study Group, we (1) established the largest international cohort of affected and unaffected individuals carrying PD-linked variants; (2) provide harmonized and quality-controlled clinical and genetic data for each included individual; (3) promote collaboration in the field of genetic PD with a view toward, Open Access funding enabled and organized by Projekt DEAL. Funding text 1: Carolyn M. Sue: Intellectual Property Rights: WO 2015/157794 A1. Advisory Boards: AbbVie. Employment: Northern Sydney Local Health District, Sydney, Australia. Honoraria: The International Movement Disorder Society for course directorships and invited lectures. Patents: WO 2015/157794 A1. Grants: 2018–22 NHMRC Partnership grant (APP1151906); 2018–22 MRFF NHMRC Practitioner Fellowship (App1136800); 2020–2025 NHMRC Partnership grant (APP11179029); 2020–2023 NHMRC Ideas Grant (APP1184403); 2021–5 MRFF 2020 Genomics Health Futures Mission Grant (APP2007959); 2021–23 ASAP Project grant ; Funding text 2: Natalya Y. Abramycheva: Employment: Research Center of Neurology, Ministry of Science and Higher Education of the Russian Federation, Moscow, Russia. Grants: Russian Science Foundation ; Funding text 3: Rachel Saunders?Pullman: Employment: Icahn School of Medicine at Mount Sinai, New York City, New York, USA. Grants: NIH 1U01NS107016?01A1; Bigglesworth Family Foundation. Others: Bachmann?Strauss Chair ; Funding text 4: Zbigniew K. Wszolek: Advisory Boards: Vigil Neuroscience, Inc. Employment: Mayo Clinic, Jacksonville, Florida, USA. Grants: NIH/NIA and NIH/NINDS (1U19AG063911, FAIN: U19AG063911), Mayo Clinic Center for Regenerative Medicine, PI or co?PI on Biohaven Pharmaceuticals, Inc. (BHV4157?206 and BHV3241?301), Neuraly, Inc. (NLY01?PD?1), and Vigil Neuroscience, Inc. (VGL101?01.001 and VGL101?01.002). He also serves as the co?PI of the Mayo Clinic APDA Center for Advanced Research. Others: Donations from the Donald G. and Jodi P. Heeringa Family, the Haworth Family Professorship in Neurodegenerative Diseases fund, and The Albertson Parkinson's Research Foundation ; Funding text 5: Vladimir S. Kostic: Employment: School of Medicine, University of Belgrade, Serbia. Grants: Project No 175090 Ministry of Education, Science and Technological Development of Serbia. Project ??28 Serbian Academy of S

Published
2023

36. DTI Profiles for Rapid Description of Cohorts at the Clinical-Research Interface

Author

Christine Lock, Janell Kwok, Sumeet Kumar, Azlina Ahmad-Annuar, Vairavan Narayanan, Adeline S. L. Ng, Yi Jayne Tan, Nagaendran Kandiah, Eng-King Tan, Zofia Czosnyka, Marek Czosnyka, John D. Pickard, and Nicole C. Keong

Subjects
normal pressure hydrocephalus, complex, comorbidities, MRI, DTI, Medicine (General), R5-920
Abstract

Normal pressure hydrocephalus (NPH) is a syndrome comprising gait disturbance, cognitive decline and urinary incontinence that is an unique model of reversible brain injury, but it presents as a challenging spectrum of disease cohorts. Diffusion Tensor Imaging (DTI), with its ability to interrogate structural white matter patterns at a microarchitectural level, is a potentially useful tool for the confirmation and characterization of disease cohorts at the clinical-research interface. However, obstacles to its widespread use involve the need for consistent DTI analysis and interpretation tools across collaborator sites. We present the use of DTI profiles, a simplistic methodology to interpret white matter injury patterns based on the morphology of diffusivity parameters. We examined 13 patients with complex NPH, i.e., patients with NPH and overlay from multiple comorbidities, including vascular risk burden and neurodegenerative disease, undergoing extended CSF drainage, clinical assessments, and multi-modal MR imaging. Following appropriate exclusions, we compared the morphology of DTI profiles in such complex NPH patients (n = 12, comprising 4 responders and 8 non-responders) to exemplar DTI profiles from a cohort of classic NPH patients (n = 16) demonstrating responsiveness of white matter injury to ventriculo-peritoneal shunting. In the cohort of complex NPH patients, mean age was 71.3 ± 7.6 years (10 males, 2 females) with a mean MMSE score of 21.1. There were 5 age-matched healthy controls, mean age was 73.4 ± 7.2 years (1 male, 4 females) and mean MMSE score was 26.8. In the exemplar cohort of classic NPH patients, mean age was 74.7 ± 5.9 years (10 males, 6 females) and mean MMSE score was 24.1. There were 9 age-matched healthy controls, mean age was 69.4 ± 9.7 years (4 males, 5 females) and mean MMSE score was 28.6. We found that, despite the challenges of acquiring DTI metrics from differing scanners across collaborator sites and NPH patients presenting as differing cohorts along the spectrum of disease, DTI profiles for responsiveness to interventions were comparable. Distinct DTI characteristics were demonstrated for complex NPH responders vs. non-responders. The morphology of DTI profiles for complex NPH responders mimicked DTI patterns found in predominantly shunt-responsive patients undergoing intervention for classic NPH. However, DTI profiles for complex NPH non-responders was suggestive of atrophy. Our findings suggest that it is possible to use DTI profiles to provide a methodology for rapid description of differing cohorts of disease at the clinical-research interface. By describing DTI measures morphologically, it was possible to consistently compare white matter injury patterns across international collaborator datasets.

Published
2019
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37. Attitudes and training needs of oncologists and surgeons in mainstreaming breast cancer genetic counseling in a low‐to‐middle income Asian country

Author

Yong‐Quan Lee, Sook‐Yee Yoon, Tiara Hassan, Heamanthaa Padmanabhan, Cheng‐Har Yip, Wee‐Teik Keng, Meow‐Keong Thong, Muhammad Azrif Ahmad Annuar, Nur Aishah Mohd Taib, and Soo‐Hwang Teo

Subjects
Oncologists, Surgeons, Adenosine Diphosphate Ribose, Attitude, Humans, Breast Neoplasms, Female, Genetic Counseling, Genetic Testing, Genetics (clinical)
Abstract

With the advent of poly-ADP-ribose polymerase inhibitor (PARPi) therapies, the focus of genetic testing for breast, ovarian, and other cancers has shifted from risk management to treatment decision-making in high-resource settings. Due to the shortage of genetic counselors worldwide, alternative ways of delivering genetic counseling have been explored, including training nongenetics healthcare professionals (NGHPs) to provide genetic counseling. However, little is known about the feasibility of adopting such models in healthcare settings with insufficient specialists, where population health literacy is low and where access to new therapies may be limited. In this study, we evaluated the attitudes, considerations, and self-efficacy of oncologists, breast surgeons, and general surgeons in mainstreaming breast cancer genetic counseling in Malaysia, a middle-income Asian country with a universal healthcare system. We developed a 32-item survey via a modified Delphi method, which was then distributed via a purposive and network sampling approach. While 77% of respondents expressed interest in providing breast cancer genetic counseling, 85% preferred to refer patients directly to genetic services for genetic counseling and testing. The main considerations for mainstreaming were the cost of genetic testing and PARPi therapy, as well as the availability of support from genetics professionals. Respondents reported a lack of confidence in communicating genetic risk, particularly to patients with poor health literacy, and in the clinical management of patients with variants of uncertain significance. Our results highlight the urgent need to train more NGHPs in providing genetic counseling and testing in low-to-middle income countries, and suggest that the mainstay for genetic counseling in this setting may be for risk management rather than access to PARPi therapy.

Published
2022

40. A Novel Occulta-Type Spina Bifida Mediated by Murine Double Heterozygotes EphA2 and EphA4 Receptor Tyrosine Kinases

Author

Nor Linda Abdullah, Siti W. Mohd-Zin, Azlina Ahmad-Annuar, and Noraishah M. Abdul-Aziz

Subjects
Epha2tm1Jrui, Epha4rb-2J, neural tube, adhesion, fusion, spina bifida, Biology (General), QH301-705.5
Abstract

Members of the Eph receptor tyrosine kinase have previously been implicated in cranial neural tube development. Failure of neural tube closure leads to the devastating conditions known as anencephaly and spina bifida. EphA2 and EphA4 are expressed at the tips of the closing spinal neural folds prior and during neural tube closure. We investigated the possible role of murine EphA2 and EphA4 during the last step of primary neural tube closure, which is adhesion and fusion. The individual mouse knockouts of EphA2 and EphA4 per se do not exhibit neural tube defects (NTDs). The embryos generated by the crossing of double heterozygotes Epha2tm1Jrui/+Epha4rb-2J/+ displayed NTDs with a wide degree of severity including close exencephaly and close spina bifida (spina bifida occulta). Interestingly, mutants displaying NTDs had skin covering the underlying lesion. The tissue sections revealed the elevated neural folds had not adhered and fused. The phenotypes seen in Epha2tm1Jrui/+Epha4rb-2J/+ double heterozygous embryos suggest both genes play a compensatory role with each other in the adhesion and fusion of the neural tube. In this study, there exists a >50% penetrance of NTDs in the mouse mutants, which genetically have a single allele each of EphA2 and EphA4 absent.

Published
2017
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41. The Prevalence and Distribution of Spina Bifida in a Single Major Referral Center in Malaysia

Author

Adibah Sahmat, Renuka Gunasekaran, Siti W. Mohd-Zin, Lohis Balachandran, Meow-Keong Thong, Julia P. Engkasan, Dharmendra Ganesan, Zaliha Omar, Abu Bakar Azizi, Azlina Ahmad-Annuar, and Noraishah M. Abdul-Aziz

Subjects
spina bifida, University Malaya Medical Centre, prevalence, distribution, 13 years study, Pediatrics, RJ1-570
Abstract

BackgroundThe aim of this study is to review the medical history of patients with spina bifida, encompassing both aperta and occulta types born between the years 2003 until 2016, spanning a 13-year time period. We assessed each patient and maternal parent information, details of the defects, and conditions associated with the primary defect. We also include information on patients’ ambulation and education level (where available).MethodsData from the Department of Patient Information University of Malaya Medical Centre (UMMC), Malaysia was captured from spina bifida patients (ICD10: Q05 spina bifida). Data involved patients referred to UMMC between 2003 and 2016 and/or born in UMMC within that particular time frame. We filtered and extracted the information according to the data of clinical examination, medical review, and social history provided in the medical records.ResultsA total of 86 patient records with spina bifida were analyzed. Spina bifida prevalence rate in this study ranged from 1.87 to 8.9 per 1,000 live births depending on weightage. We note that ethnicity was a factor whereby the highest numbers of spina bifida were from Malays (n = 36, 41.86%), followed by equal numbers of Chinese and Indians (n = 24, 27.91%). The highest number of diagnoses reported was myelomeningocele type-spina bifida (n = 39, 45.35%). The most common site of the spina bifida lesion was located at the lumbar region irrespective of aperta or occulta types (n = 23, 26.74%). Data on other associated phenotypes of spina bifida such as hydrocephalus and encephalocele was also captured at 37.21% (n = 32) and 1.16% (n = 1), respectively. In terms of mobility, 32.84% (n = 22/67) of patients between the ages 4 and 16 years old were found to be mobile. As many as 36.07% of patients ranging from 5 to 16 years of age (n = 22/61) received formal education ranging from preschool to secondary school.ConclusionThe prevalence of spina bifida in UMMC is as according to international statistics which is in the range of 0.5–10 per 1,000 live births. Majority of the reported cases were males, Malays, full term babies, and of the myelomeningocele phenotype located at the lumbar region.

Published
2017
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42. A survey on patients' disease perception and the impact of the COVID-19 pandemic on persons living with amyotrophic lateral sclerosis in Malaysia

Author

Khean Jin Goh, Suzanna Edgar, Ee Chin Loh, Nortina Shahrizaila, Nur Adilah Abdul-Aziz, Lydia Abdul Latif, David Paul Capelle, and Azlina Ahmad-Annuar

Subjects
Adult, Male, Health Knowledge, Attitudes, Practice, medicine.medical_specialty, Coronavirus disease 2019 (COVID-19), media_common.quotation_subject, medicine.medical_treatment, Disease, motor neurone disease, 03 medical and health sciences, 0302 clinical medicine, Surveys and Questionnaires, Perception, Pandemic, medicine, Humans, survey, 030212 general & internal medicine, Amyotrophic lateral sclerosis, Disease management (health), Aged, media_common, Rehabilitation, SARS-CoV-2, business.industry, Amyotrophic Lateral Sclerosis, Malaysia, COVID-19, Middle Aged, Preliminary Communication, medicine.disease, disease management, Emergency medicine, Female, Neurology (clinical), ALS, business, Motor neurone disease, 030217 neurology & neurosurgery
Abstract

Aim: To investigate the patients' perception of their disease, its management and the impact of the COVID-19 pandemic on persons living with amyotrophic lateral sclerosis (ALS) in Malaysia. Patients & methods: An online survey comprising 42 questions was conducted on ALS patients during the peak of the COVID-19 pandemic. Results: Responses were received from 37/60 (62%) participants with ALS directly or through their caregivers. During the COVID-19 pandemic, two-thirds of patients were negatively impacted by the sudden disruption to their hospital appointments, rehabilitation sessions and reduced social interactions. Conclusion: This study provided insight into patients' perception of their care and management of ALS in Malaysia which will facilitate in implementing changes that can improve care to persons living with this devastating illness.

Published
2021

44. Genetic study of early-onset Parkinson's disease in the Malaysian population

Author

Yi Wen Tay, Ai Huey Tan, Jia Lun Lim, Katja Lohmann, Khairul Azmi Ibrahim, Zariah Abdul Aziz, Yen Theng Chin, Ahmad Shahir Mawardi, Thien Thien Lim, Irene Looi, Yuen Kang Chia, Joshua Chin Ern Ooi, Wee Kooi Cheah, Alfand Marl F. Dy Closas, Lei Cheng Lit, Jia Wei Hor, Tzi Shin Toh, Kalai Arasu Muthusamy, Peter Bauer, Volha Skrahin, Arndt Rolfs, Christine Klein, Azlina Ahmad-Annuar, and Shen-Yang Lim

Subjects
Neurology, Neurology (clinical), Geriatrics and Gerontology
Published
2023

46. Hereditary transthyretin amyloidosis in multi-ethnic Malaysians

Author

Nor Ashikin Md Sari, Rachel Siew-Hung Sim, Cheng-Yin Tan, Khean Jin Goh, Kum Thong Wong, Azlina Ahmad-Annuar, Soon Chai Low, Wan-Chung Law, Nortina Shahrizaila, and Kon-Ping Lin

Subjects
Adult, Male, 0301 basic medicine, medicine.medical_specialty, Ethnic group, Asymptomatic, 03 medical and health sciences, 0302 clinical medicine, Asian People, Internal medicine, Ethnicity, Humans, Medicine, Sensory symptoms, Genetics (clinical), Aged, Subclinical infection, Malay, Neurologic Examination, Amyloid Neuropathies, Familial, biology, business.industry, Amyloidosis, Malaysia, Middle Aged, medicine.disease, language.human_language, Transthyretin, Phenotype, 030104 developmental biology, Neurology, Mutation, Pediatrics, Perinatology and Child Health, biology.protein, language, Female, Neurology (clinical), medicine.symptom, business, Asymptomatic carrier, 030217 neurology & neurosurgery
Abstract

We report the clinical and genetic characteristics of hereditary transthyretin amyloidosis in the multi-ethnic Malaysian population. Subjects with genetically confirmed transthyretin amyloidosis seen between 2001 till August 2020 were included. There were 30 patients and 14 asymptomatic carriers, of which 26 (59.1%) were men. The majority (86.7%) were ethnic Chinese while two (6.7%) each were Malay and Sri Lankan Tamil ethnicity respectively. Among patients, mean age of symptom-onset was 55.9 ± 9.8 years with mean duration from symptom-onset to diagnosis of 3.2 ± 2.5 years. Common presenting symptoms were sensory symptoms of upper limbs (43.3%), symmetric sensory symptoms of both lower limbs (16.7%) and autonomic symptoms (16.7%). Nerve conduction studies showed sensorimotor polyneuropathy in 25 (83.3%) patients (22, axonal). Abnormal echocardiograms were seen in 24 (80%) patients, although 15 were asymptomatic. Of six different TTR mutations found, Ala97Ser was the commonest, and found exclusively in 84.6% of Chinese patients. Other mutations among Chinese patients were Val30Met, Ala25Thr and Asp39Val. Our Malay and Tamil patients had Glu54Lys and Gly47Val mutations respectively. In conclusion, TTR Ala97Ser is the commonest mutation among ethnic Chinese Malaysians which presented with late-onset progressive sensorimotor polyneuropathy, autonomic dysfunction and subclinical cardiac involvement.

Published
2021

47. Cranial neural tube defect after trimethoprim exposure

Author

Abdullah, Nor Linda, Gunasekaran, Renuka, Mohd-Zin, Siti Waheeda, Lim, Bee-Hui, Maniam, Pramila, Mohd-Salleh, Anis Shuhada, Thong, Meow-Keong, Chik, Zamri, Nordin, Noreena, Omar, Zaliha, Engkasan, Julia Patrick, Ganesan, Dharmendra, Aiezzah, Zakaria Nurul, Ahmad-Annuar, Azlina, and Abdul-Aziz, Noraishah Mydin

Published
2018
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48. Identification of the genomic mutation in Epha[4.sup.rb-2J/rb-2J] mice

Author

Mohd-Zin, Siti W., Abdullah, Nor-Linda, Abdullah, Aminah, Greene, Nicholas D.E., Cheah, Pike-See, Ling, King-Hwa, Yusof, Hadri, Marwan, Ahmed I., Williams, Sarah M., York, Kerri T., Ahmad-Annuar, Azlina, and Abdul-Aziz, Noraishah M.

Subjects
Gene mutations -- Observations, Tyrosine -- Physiological aspects, Phosphotransferases -- Physiological aspects, Biological sciences
Abstract

The EphA4 receptor tyrosine kinase is involved in numerous cell-signalling activities during embryonic development. EphA4 has the ability to bind to both types of ephrin ligands, the ephrinAs and ephrinBs. [...]

Published
2016

49. Spina Bifida: Pathogenesis, Mechanisms, and Genes in Mice and Humans

Author

Siti W. Mohd-Zin, Ahmed I. Marwan, Mohamad K. Abou Chaar, Azlina Ahmad-Annuar, and Noraishah M. Abdul-Aziz

Subjects
Medicine, Science
Abstract

Spina bifida is among the phenotypes of the larger condition known as neural tube defects (NTDs). It is the most common central nervous system malformation compatible with life and the second leading cause of birth defects after congenital heart defects. In this review paper, we define spina bifida and discuss the phenotypes seen in humans as described by both surgeons and embryologists in order to compare and ultimately contrast it to the leading animal model, the mouse. Our understanding of spina bifida is currently limited to the observations we make in mouse models, which reflect complete or targeted knockouts of genes, which perturb the whole gene(s) without taking into account the issue of haploinsufficiency, which is most prominent in the human spina bifida condition. We thus conclude that the need to study spina bifida in all its forms, both aperta and occulta, is more indicative of the spina bifida in surviving humans and that the measure of deterioration arising from caudal neural tube defects, more commonly known as spina bifida, must be determined by the level of the lesion both in mouse and in man.

Published
2017
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50. COVID-19 pandemic: Lessons learned for undergraduate research training

Author

Kamariah Ibrahim and Azlina Ahmad‐Annuar

Subjects
Communicable Disease Control, COVID-19, Humans, Curriculum, Students, Molecular Biology, Biochemistry, Pandemics
Abstract

This article reports a session from the virtual international 2021 IUBMB/ASBMB workshop, "Teaching Science on Big Data." The awareness of using publicly available research data sets for undergraduate training is low in certain parts of the world. Final year projects always revolve around wet-lab based projects. The challenges occur during COVID-19 pandemic when it forces full lockdown to the nation, but at the same time faculty members need to provide consistent training to the students and projects to work with. We aim to identify supervisors in the faculty that are ready to convert their proposed project from wet-lab to an online-based project. As coordinators of the course we created an online survey to identify projects that can be converted into dry-lab/online projects. Our surveys identified only 32.5% projects implemented dry-lab/online based projects. Most academicians described that they are not ready or familiar to apply changes for their research design. With the unknown future of the world living with COVID-19 and directional changes of life science research toward big data driven research indeed we should be ready to adopt such changes. Awareness on reusing public data sets as tools for research should be provided to strengthen undergraduate training. Life science undergraduates should be exposed to reusing public data sets as these materials are readily available case studies that allow in depth exploration to answer specific research questions. Members of the faculty should take part to pave the way for them, ensuring that they understand that life science research revolves around a multidisciplinary field.

Published
2022

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