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12 results on '"Alavi, Shahryar"'

1. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a severe developmental disorder spectrum

Author

Calame, Daniel G., Wong, Jovi Huixin, Panda, Puravi, Nguyen, Dat Tuan, Leong, Nancy C.P., Sangermano, Riccardo, Patankar, Sohil G., Abdel-Hamid, Mohamed S., AlAbdi, Lama, Safwat, Sylvia, Flannery, Kyle P., Dardas, Zain, Fatih, Jawid M., Murali, Chaya, Kannan, Varun, Lotze, Timothy E., Herman, Isabella, Ammouri, Farah, Rezich, Brianna, Efthymiou, Stephanie, Alavi, Shahryar, Murphy, David, Firoozfar, Zahra, Nasab, Mahya Ebrahimi, Bahreini, Amir, Ghasemi, Majid, Haridy, Nourelhoda A., Goldouzi, Hamid Reza, Eghbal, Fatemeh, Karimiani, Ehsan Ghayoor, Begtrup, Amber, Elloumi, Houda, Srinivasan, Varunvenkat M., Gowda, Vykuntaraju K., Du, Haowei, Jhangiani, Shalini N., Coban-Akdemir, Zeynep, Marafi, Dana, Rodan, Lance, Isikay, Sedat, Rosenfeld, Jill A., Ramanathan, Subhadra, Staton, Michael, Oberg, Kerby C., Clark, Robin D., Wenman, Catharina, Loughlin, Sam, Saad, Ramy, Ashraf, Tazeen, Male, Alison, Tadros, Shereen, Boostani, Reza, Abdel-Salam, Ghada M.H., Zaki, Maha, Mardi, Ali, Hashemi-Gorji, Farzad, Abdalla, Ebtesam, Manzini, M. Chiara, Pehlivan, Davut, Posey, Jennifer E., Gibbs, Richard A., Houlden, Henry, Alkuraya, Fowzan S., Bujakowska, Kinga, Maroofian, Reza, Lupski, James R., and Nguyen, Long N.

Published
2025
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2. Elucidating the clinical and genetic spectrum of inositol polyphosphate phosphatase INPP4A-related neurodevelopmental disorder

Author

Rawlins, Lettie E., Maroofian, Reza, Cannon, Stuart J., Daana, Muhannad, Zamani, Mina, Ghani, Shamsul, Leslie, Joseph S., Ubeyratna, Nishanka, Khan, Nasar, Khan, Hamid, Scardamaglia, Annarita, Cloarec, Robin, Khan, Shujaat Ali, Umair, Muhammad, Sadeghian, Saeid, Galehdari, Hamid, Al-Maawali, Almundher, Al-Kindi, Adila, Azizimalamiri, Reza, Shariati, Gholamreza, Ahmad, Faraz, Al-Futaisi, Amna, Rodriguez Cruz, Pedro M., Salazar-Villacorta, Ainara, Ndiaye, Moustapha, Diop, Amadou G., Sedaghat, Alireza, Saberi, Alihossein, Hamid, Mohammad, Zaki, Maha S., Vona, Barbara, Owrang, Daniel, Alhashem, Abdullah M., Obeid, Makram, Khan, Amjad, Beydoun, Ahmad, Najjar, Marwan, Tajsharghi, Homa, Zifarelli, Giovanni, Bauer, Peter, Hakami, Wejdan S., Al Hashem, Amal M., Boustany, Rose-Mary N., Burglen, Lydie, Alavi, Shahryar, Gunning, Adam C., Owens, Martina, Karimiani, Ehsan G., Gleeson, Joseph G., Milh, Mathieu, Salah, Somaya, Khan, Jahangir, Haucke, Volker, Wright, Caroline F., McGavin, Lucy, Elpeleg, Orly, Shabbir, Muhammad I., Houlden, Henry, Ebner, Michael, Baple, Emma L., and Crosby, Andrew H.

Published
2025
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4. Clinical and genetic delineation of autosomal recessive and dominant ACTL6B-related developmental brain disorders

Author

Cali, Elisa, Quirin, Tania, Rocca, Clarissa, Efthymiou, Stephanie, Riva, Antonella, Marafi, Dana, Zaki, Maha S., Suri, Mohnish, Dominguez, Roberto, Elbendary, Hasnaa M., Alavi, Shahryar, Abdel-Hamid, Mohamed S., Morsy, Heba, Mau-Them, Frederic Tran, Nizon, Mathilde, Tesner, Pavel, Ryba, Lukáš, Zafar, Faisal, Rana, Nuzhat, Saadi, Nebal W., Firoozfar, Zahra, Gencpinar, Pinar, Unay, Bulent, Ustun, Canan, Bruel, Ange-Line, Coubes, Christine, Stefanich, Jennifer, Sezer, Ozlem, Agolini, Emanuele, Novelli, Antonio, Vasco, Gessica, Lettori, Donatella, Milh, Mathieu, Villard, Laurent, Zeidler, Shimriet, Opperman, Henry, Strehlow, Vincent, Issa, Mahmoud Y., El Khassab, Hebatallah, Chand, Prem, Ibrahim, Shahnaz, Nejad-Rashidi, Ali, Miryounesi, Mohammad, Larki, Pegah, Morrison, Jennifer, Cristian, Ingrid, Thiffault, Isabelle, Bertsch, Nicole L., Noh, Grace J., Pappas, John, Moran, Ellen, Marinakis, Nikolaos M., Traeger-Synodinos, Joanne, Hosseini, Susan, Abbaszadegan, Mohammad Reza, Caumes, Roseline, Vissers, Lisenka E.L.M., Neshatdoust, Maedeh, Montazer, Mostafa Zohour, El Fahime, Elmostafa, Canavati, Christin, Kamal, Lara, Kanaan, Moien, Askander, Omar, Voinova, Victoria, Levchenko, Olga, Haider, Shahzhad, Halbach, Sara S., Maia, Elias Rayana, Mansoor, Salehi, Vivek, Jain, Tawde, Sanjukta, Challa, Viveka Santhosh R., Gowda, Vykuntaraju K., Srinivasan, Varunvenkat M., Victor, Lucas Alves, Pinero-Banos, Benito, Hague, Jennifer, Ei-Awady, Heba Ahmed, Maria de Miranda Henriques-Souza, Adelia, Cheema, Huma Arshad, Anjum, Muhammad Nadeem, Idkaidak, Sara, Alqarajeh, Firas, Atawneh, Osama, Mor-Shaked, Hagar, Harel, Tamar, Zifarelli, Giovanni, Bauer, Peter, Kok, Fernando, Kitajima, Joao Paulo, Monteiro, Fabiola, Josahkian, Juliana, Lesca, Gaetan, Chatron, Nicolas, Ville, Dorothe, Murphy, David, Neul, Jeffrey L., Mullegama, Sureni V., Begtrup, Amber, Herman, Isabella, Mitani, Tadahiro, Posey, Jennifer E., Tay, Chee Geap, Javed, Iram, Carr, Lucinda, Kanani, Farah, Beecroft, Fiona, Hane, Lee, Abdelkreem, Elsayed, Macek, Milan, Bispo, Luciana, Elmaksoud, Marwa Abd, Hashemi-Gorji, Farzad, Pehlivan, Davut, Amor, David J., Jamra, Rami Abou, Chung, Wendy K., Ghayoor, Eshan Karimiani, Campeau, Philippe, Alkuraya, Fowzan S., Pagnamenta, Alistair T., Gleeson, Joseph, Lupski, James R., Striano, Pasquale, Moreno-De-Luca, Andres, Lafontaine, Denis L.J., Houlden, Henry, and Maroofian, Reza

Published
2024
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5. Brain monoamine vesicular transport disease caused by homozygous SLC18A2 variants: A study in 42 affected individuals

Author

Saida, Ken, Maroofian, Reza, Sengoku, Toru, Mitani, Tadahiro, Pagnamenta, Alistair T., Marafi, Dana, Zaki, Maha S., O’Brien, Thomas J., Karimiani, Ehsan Ghayoor, Kaiyrzhanov, Rauan, Takizawa, Marina, Ohori, Sachiko, Leong, Huey Yin, Akay, Gulsen, Galehdari, Hamid, Zamani, Mina, Romy, Ratna, Carroll, Christopher J., Toosi, Mehran Beiraghi, Ashrafzadeh, Farah, Imannezhad, Shima, Malek, Hadis, Ahangari, Najmeh, Tomoum, Hoda, Gowda, Vykuntaraju K., Srinivasan, Varunvenkat M., Murphy, David, Dominik, Natalia, Elbendary, Hasnaa M., Rafat, Karima, Yilmaz, Sanem, Kanmaz, Seda, Serin, Mine, Krishnakumar, Deepa, Gardham, Alice, Maw, Anna, Rao, Tekki Sreenivasa, Alsubhi, Sarah, Srour, Myriam, Buhas, Daniela, Jewett, Tamison, Goldberg, Rachel E., Shamseldin, Hanan, Frengen, Eirik, Misceo, Doriana, Strømme, Petter, Magliocco Ceroni, José Ricardo, Kim, Chong Ae, Yesil, Gozde, Sengenc, Esma, Guler, Serhat, Hull, Mariam, Parnes, Mered, Aktas, Dilek, Anlar, Banu, Bayram, Yavuz, Pehlivan, Davut, Posey, Jennifer E., Alavi, Shahryar, Madani Manshadi, Seyed Ali, Alzaidan, Hamad, Al-Owain, Mohammad, Alabdi, Lama, Abdulwahab, Ferdous, Sekiguchi, Futoshi, Hamanaka, Kohei, Fujita, Atsushi, Uchiyama, Yuri, Mizuguchi, Takeshi, Miyatake, Satoko, Miyake, Noriko, Elshafie, Reem M., Salayev, Kamran, Guliyeva, Ulviyya, Alkuraya, Fowzan S., Gleeson, Joseph G., Monaghan, Kristin G., Langley, Katherine G., Yang, Hui, Motavaf, Mahsa, Safari, Saeid, Alipour, Mozhgan, Ogata, Kazuhiro, Brown, André E.X., Lupski, James R., Houlden, Henry, and Matsumoto, Naomichi

Published
2023
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6. Bi-allelic loss-of-function variants in PPFIBP1 cause a neurodevelopmental disorder with microcephaly, epilepsy, and periventricular calcifications

Author

Rosenhahn, Erik, O’Brien, Thomas J., Zaki, Maha S., Sorge, Ina, Wieczorek, Dagmar, Rostasy, Kevin, Vitobello, Antonio, Nambot, Sophie, Alkuraya, Fowzan S., Hashem, Mais O., Alhashem, Amal, Tabarki, Brahim, Alamri, Abdullah S., Al Safar, Ayat H., Bubshait, Dalal K., Alahmady, Nada F., Gleeson, Joseph G., Abdel-Hamid, Mohamed S., Lesko, Nicole, Ygberg, Sofia, Correia, Sandrina P., Wredenberg, Anna, Alavi, Shahryar, Seyedhassani, Seyed M., Ebrahimi Nasab, Mahya, Hussien, Haytham, Omar, Tarek E.I., Harzallah, Ines, Touraine, Renaud, Tajsharghi, Homa, Morsy, Heba, Houlden, Henry, Shahrooei, Mohammad, Ghavideldarestani, Maryam, Abdel-Salam, Ghada M.H., Torella, Annalaura, Zanobio, Mariateresa, Terrone, Gaetano, Brunetti-Pierri, Nicola, Omrani, Abdolmajid, Hentschel, Julia, Lemke, Johannes R., Sticht, Heinrich, Abou Jamra, Rami, Brown, Andre E.X., Maroofian, Reza, and Platzer, Konrad

Published
2022
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9. Biallelic MED27 variants lead to variable ponto-cerebello-lental degeneration with movement disorders.

Author

Maroofian, Reza, Kaiyrzhanov, Rauan, Cali, Elisa, Zamani, Mina, Zaki, Maha S, Ferla, Matteo, Tortora, Domenico, Sadeghian, Saeid, Saadi, Saadia Maryam, Abdullah, Uzma, Karimiani, Ehsan Ghayoor, Efthymiou, Stephanie, Yeşil, Gözde, Alavi, Shahryar, Shamsi, Aisha M Al, Tajsharghi, Homa, Abdel-Hamid, Mohamed S, Saadi, Nebal Waill, Mutairi, Fuad Al, and Alabdi, Lama

Subjects
FACIAL abnormalities, MISSENSE mutation, MOVEMENT disorders, DEVELOPMENTAL delay, BASAL ganglia, SYMPTOMS, CEREBELLUM degeneration
Abstract

MED27 is a subunit of the Mediator multiprotein complex, which is involved in transcriptional regulation. Biallelic MED27 variants have recently been suggested to be responsible for an autosomal recessive neurodevelopmental disorder with spasticity, cataracts and cerebellar hypoplasia. We further delineate the clinical phenotype of MED27 -related disease by characterizing the clinical and radiological features of 57 affected individuals from 30 unrelated families with biallelic MED27 variants. Using exome sequencing and extensive international genetic data sharing, 39 unpublished affected individuals from 18 independent families with biallelic missense variants in MED27 have been identified (29 females, mean age at last follow-up 17 ± 12.4 years, range 0.1–45). Follow-up and hitherto unreported clinical features were obtained from the published 12 families. Brain MRI scans from 34 cases were reviewed. MED27 -related disease manifests as a broad phenotypic continuum ranging from developmental and epileptic-dyskinetic encephalopathy to variable neurodevelopmental disorder with movement abnormalities. It is characterized by mild to profound global developmental delay/intellectual disability (100%), bilateral cataracts (89%), infantile hypotonia (74%), microcephaly (62%), gait ataxia (63%), dystonia (61%), variably combined with epilepsy (50%), limb spasticity (51%), facial dysmorphism (38%) and death before reaching adulthood (16%). Brain MRI revealed cerebellar atrophy (100%), white matter volume loss (76.4%), pontine hypoplasia (47.2%) and basal ganglia atrophy with signal alterations (44.4%). Previously unreported 39 affected individuals had seven homozygous pathogenic missense MED27 variants, five of which were recurrent. An emerging genotype-phenotype correlation was observed. This study provides a comprehensive clinical-radiological description of MED27 -related disease, establishes genotype-phenotype and clinical-radiological correlations and suggests a differential diagnosis with syndromes of cerebello-lental neurodegeneration and other subtypes of 'neuro-MEDopathies'. [ABSTRACT FROM AUTHOR]

Published
2023
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10. Frequency of GAA-FGF14 Ataxia in a Large Cohort of Brazilian Patients With Unsolved Adult-Onset Cerebellar Ataxia.

Author

Novis, Luiz Eduardo, Frezatti, Rodrigo S., Pellerin, David, Tomaselli, Pedro J., Alavi, Shahryar, Della Coleta, Marcus Vinícius, Spitz, Mariana, Dicaire, Marie-Josée, Iruzubieta, Pablo, Pedroso, José Luiz, Barsottini, Orlando, Cortese, Andrea, Danzi, Matt C., França Jr, Marcondes C., Brais, Bernard, Zuchner, Stephan, Houlden, Henry, Raskin, Salmo, Marques, Wilson, and Teive, Helio A.

Published
2023
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11. The clinical and genetic spectrum of autosomal-recessive TOR1A-related disorders.

Author

Saffari, Afshin, Lau, Tracy, Tajsharghi, Homa, Karimiani, Ehsan Ghayoor, Kariminejad, Ariana, Efthymiou, Stephanie, Zifarelli, Giovanni, Sultan, Tipu, Toosi, Mehran Beiraghi, Sedighzadeh, Sahar, Siu, Victoria Mok, Ortigoza-Escobar, Juan Darío, AlShamsi, Aisha M, Ibrahim, Shahnaz, Al-Sannaa, Nouriya Abbas, Al-Hertani, Walla, Sandra, Whalen, Tarnopolsky, Mark, Alavi, Shahryar, and Li, Chumei

Subjects
ARTHROGRYPOSIS, MISSENSE mutation, CORPUS callosum, GAIT disorders, DEVELOPMENTAL delay, MOLECULAR spectra, ARACHNOID cysts
Abstract

In the field of rare diseases, progress in molecular diagnostics led to the recognition that variants linked to autosomal-dominant neurodegenerative diseases of later onset can, in the context of biallelic inheritance, cause devastating neurodevelopmental disorders and infantile or childhood-onset neurodegeneration. TOR1A -associated arthrogryposis multiplex congenita 5 (AMC5) is a rare neurodevelopmental disorder arising from biallelic variants in TOR1A , a gene that in the heterozygous state is associated with torsion dystonia-1 (DYT1 or DYT- TOR1A), an early-onset dystonia with reduced penetrance. While 15 individuals with AMC5- TOR1A have been reported (less than 10 in detail), a systematic investigation of the full disease-associated spectrum has not been conducted. Here, we assess the clinical, radiological and molecular characteristics of 57 individuals from 40 families with biallelic variants in TOR1A. Median age at last follow-up was 3 years (0–24 years). Most individuals presented with severe congenital flexion contractures (95%) and variable developmental delay (79%). Motor symptoms were reported in 79% and included lower limb spasticity and pyramidal signs, as well as gait disturbances. Facial dysmorphism was an integral part of the phenotype, with key features being a broad/full nasal tip, narrowing of the forehead and full cheeks. Analysis of disease-associated manifestations delineated a phenotypic spectrum ranging from normal cognition and mild gait disturbance to congenital arthrogryposis, global developmental delay, intellectual disability, absent speech and inability to walk. In a subset, the presentation was consistent with foetal akinesia deformation sequence with severe intrauterine abnormalities. Survival was 71%, with higher mortality in males. Death occurred at a median age of 1.2 months (1 week–9 years), due to respiratory failure, cardiac arrest or sepsis. Analysis of brain MRI studies identified non-specific neuroimaging features, including a hypoplastic corpus callosum (72%), foci of signal abnormality in the subcortical and periventricular white matter (55%), diffuse white matter volume loss (45%), mega cisterna magna (36%) and arachnoid cysts (27%). The molecular spectrum included 22 distinct variants, defining a mutational hotspot in the C-terminal domain of the Torsin-1A protein. Genotype-phenotype analysis revealed an association of missense variants in the 3-helix bundle domain to an attenuated phenotype, while missense variants near the Walker A/B motif as well as biallelic truncating variants were linked to early death. In summary, this systematic cross-sectional analysis of a large cohort of individuals with biallelic TOR1A variants across a wide age-range delineates the clinical and genetic spectrum of TOR1A -related autosomal-recessive disease and highlights potential predictors for disease severity and survival. [ABSTRACT FROM AUTHOR]

Published
2023
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12. A recurrent homozygous missense DPM3 variant leads to muscle and brain disease.

Author

Nagy, Sara, Lau, Tracy, Alavi, Shahryar, Karimiani, Ehsan Ghayoor, Vallian, Jalal, Ng, Bobby G., Noroozi Asl, Samaneh, Akhondian, Javad, Bahreini, Amir, Yaghini, Omid, Uapinyoying, Prech, Bonnemann, Carsten, Freeze, Hudson H., Dissanayake, Vajira H. W., Sirisena, Nirmala D., Schmidts, Miriam, Houlden, Henry, Moreno‐De‐Luca, Andres, and Maroofian, Reza

Subjects
MISSENSE mutation, MUSCLE diseases, BRAIN diseases, CONGENITAL disorders, DISABILITIES, MUSCLE weakness, DYSPLASIA
Abstract

Biallelic pathogenic variants in the genes encoding the dolichol‐phosphate mannose synthase subunits (DPM) which produce mannosyl donors for glycosylphosphatidylinositols, N‐glycan and protein O‐ and C‐mannosylation, are rare causes of congenital disorders of glycosylation. Pathogenic variants in DPM1 and DPM2 are associated with muscle–eye–brain (MEB) disease, whereas DPM3 variants have mostly been reported in patients with isolated muscle disease—dystroglycanopathy. Thus far, only one affected individual with compound heterozygous DPM3 variants presenting with myopathy, mild intellectual disability, seizures, and nonspecific white matter abnormalities (WMA) around the lateral ventricles has been described. Here we present five affected individuals from four unrelated families with global developmental delay/intellectual disability ranging from mild to severe, microcephaly, seizures, WMA, muscle weakness and variable cardiomyopathy. Exome sequencing of the probands revealed an ultra‐rare homozygous pathogenic missense DPM3 variant NM_018973.4:c.221A>G, p.(Tyr74Cys) which segregated with the phenotype in all families. Haplotype analysis indicated that the variant arose independently in three families. Functional analysis did not reveal any alteration in the N‐glycosylation pathway caused by the variant; however, this does not exclude its pathogenicity in the function of the DPM complex and related cellular pathways. This report provides supporting evidence that, besides DPM1 and DPM2, defects in DPM3 can also lead to a muscle and brain phenotype. [ABSTRACT FROM AUTHOR]

Published
2022
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