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1. Elucidating the genomic basis of rare pediatric neurological diseases in Central Asia and Transcaucasia

Author

Kaiyrzhanov, Rauan, Zharkinbekova, Nazira, Guliyeva, Ulviyya, Ganieva, Manizha, Tavadyan, Zaruhi, Gachechiladze, Tamar, Salayev, Kamran, Guliyeva, Sughra, Isayan, Mariam, Kekenadze, Mariam, Sukhudyan, Biayna, Gevorgyan, Ani, Hakobyan, Artsruni, Ibadova, Rima, Tabatadze, Nazi, Kurua, Ekaterina, Shatirishvili, Teona, Yerkhojayeva, Nigara, Koneev, Kairgali, Zhumakhanov, Dauren, Mukushev, Askhat, Jaxybayeva, Altynshash, Nauryzbayeva, Alissa, Isrofilov, Maksudjon, Badalova, Saadat, Zeyniyeva, Naila, Hajiyeva, Ilaha, Alakbarov, Leyla, Zeynalova, Aynur, Chelban, Viorica, Vandrovcova, Jana, Turchetti, Valentina, Murphy, David, Efthymiou, Stephanie, Alavi, Shahryar, Mohammad, Rahema, Tkemaladze, Tinatin, Shashkin, Chingiz, Tatishvili, Nana Nino, Beridze, Maia, Khachatryan, Samson G., Melikishvili, Gia, Hardy, John, Maroofian, Reza, and Houlden, Henry

Published
2024
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2. 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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3. 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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5. 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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6. 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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7. 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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8. Biallelic variants in ARHGAP19 cause a motor-predominant neuropathy with asymmetry and conduction slowing

Author

Dominik, Natalia, primary, Efthymiou, Stephanie, additional, Record, Christopher J, additional, Miao, Xinyu, additional, Lin, Renee, additional, Parmar, Jevin, additional, Scardamaglia, Annarita, additional, Maroofian, Reza, additional, Aughey, Gabriel, additional, Wilson, Abigail, additional, Lowe, Simon, additional, Curro, Riccardo, additional, Schnekenberg, Ricardo P, additional, Alavi, Shahryar, additional, Leclaire, Leif, additional, He, Yi, additional, Zhelchenska, Kristina, additional, Bellaiche, Yohanns, additional, Gaugue, Isabelle, additional, Skorupinska, Mariola, additional, Van de Vondel, Liedewei, additional, Da'as, Sahar, additional, Turchetti, Valentina, additional, Gungor, Serdal, additional, Karimiani, Ehsan Ghayoor, additional, Armirola Ricaurte, Camila, additional, Topaloglu, Haluk, additional, Jordanova, Albena, additional, Zaman, Mashaya, additional, Banu, Selina H, additional, Marques, Wilson, additional, Tomaselli, Pedro Jose, additional, Aynekin, Busra, additional, Cansu, Ali, additional, Per, Huseyin, additional, Gulec, Ayten, additional, Alvi, Javeria Raza, additional, Sultan, Tipu, additional, Khan, Arif, additional, Zifarelli, Giovanni, additional, Ibrahim, Shahnaz, additional, Mancini, Grazia M.S., additional, Motazacker, M. Mahdi, additional, Brusse, Esther, additional, Lupo, Vincenzo, additional, Sevilla, Teresa, additional, Tekgul, Seyma, additional, Palvadeau, Robin, additional, Basak, A Nazli, additional, Baets, Jonathan, additional, Parman, Yesim, additional, Cakar, Arman, additional, Horvath, Rita, additional, Haack, Tobias B, additional, Stahl, Jan-Hendrik, additional, Grundmann-Hauser, Kathrin, additional, Park, Joohyun, additional, Zuchner, Stephan, additional, Laing, Nigel G, additional, Wilson, Lindsay, additional, Rossor, Alexander M., additional, Polke, James, additional, Figueiredo, Fernanda Barbosa, additional, Pessoa, Andre Luiz, additional, Kok, Fernando, additional, Coimbra-Neto, Antonio Rodrigues, additional, Franca, Marcondes C, additional, Jamshidi, Yalda, additional, Ravenscroft, Gianina, additional, Ahmed Hamed, Sherifa, additional, Chung, Wendy K., additional, Osborn, Daniel P, additional, Hanna, Michael, additional, Cortese, Andrea, additional, Jepson, James E C, additional, Reilly, Mary M, additional, Lamarche-Vane, Nathalie, additional, and Houlden, Henry, additional

Published
2024
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10. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a pleiotropic disease spectrum from adult neurodegeneration to severe developmental disorders

Author

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

Published
2024
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13. Frequency of GAA-FGF14Ataxia in a Large Cohort of Brazilian Patients With Unsolved Adult-Onset Cerebellar Ataxia

Author

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

Published
2023
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14. Biallelic MED27 variants lead to variable ponto-cerebello-lental degeneration with movement disorders

Author

Maroofian, Reza, primary, Kaiyrzhanov, Rauan, additional, Cali, Elisa, additional, Zamani, Mina, additional, Zaki, Maha S, additional, Ferla, Matteo, additional, Tortora, Domenico, additional, Sadeghian, Saeid, additional, Saadi, Saadia Maryam, additional, Abdullah, Uzma, additional, Karimiani, Ehsan Ghayoor, additional, Efthymiou, Stephanie, additional, Yeşil, Gözde, additional, Alavi, Shahryar, additional, Al Shamsi, Aisha M, additional, Tajsharghi, Homa, additional, Abdel-Hamid, Mohamed S, additional, Saadi, Nebal Waill, additional, Al Mutairi, Fuad, additional, Alabdi, Lama, additional, Beetz, Christian, additional, Ali, Zafar, additional, Toosi, Mehran Beiraghi, additional, Rudnik-Schöneborn, Sabine, additional, Babaei, Meisam, additional, Isohanni, Pirjo, additional, Muhammad, Jameel, additional, Khan, Sheraz, additional, Al Shalan, Maha, additional, Hickey, Scott E, additional, Marom, Daphna, additional, Elhanan, Emil, additional, Kurian, Manju A, additional, Marafi, Dana, additional, Saberi, Alihossein, additional, Hamid, Mohammad, additional, Spaull, Robert, additional, Meng, Linyan, additional, Lalani, Seema, additional, Maqbool, Shazia, additional, Rahman, Fatima, additional, Seeger, Jürgen, additional, Palculict, Timothy Blake, additional, Lau, Tracy, additional, Murphy, David, additional, Mencacci, Niccolo Emanuele, additional, Steindl, Katharina, additional, Begemann, Anais, additional, Rauch, Anita, additional, Akbas, Sinan, additional, Aslanger, Ayça Dilruba, additional, Salpietro, Vincenzo, additional, Yousaf, Hammad, additional, Ben-Shachar, Shay, additional, Ejeskär, Katarina, additional, Al Aqeel, Aida I, additional, High, Frances A, additional, Armstrong-Javors, Amy E, additional, Zahraei, Seyed Mohammadsaleh, additional, Seifi, Tahereh, additional, Zeighami, Jawaher, additional, Shariati, Gholamreza, additional, Sedaghat, Alireza, additional, Asl, Samaneh Noroozi, additional, Shahrooei, Mohmmad, additional, Zifarelli, Giovanni, additional, Burglen, Lydie, additional, Ravelli, Claudia, additional, Zschocke, Johannes, additional, Schatz, Ulrich A, additional, Ghavideldarestani, Maryam, additional, Kamel, Walaa A, additional, Van Esch, Hilde, additional, Hackenberg, Annette, additional, Taylor, Jenny C, additional, Al-Gazali, Lihadh, additional, Bauer, Peter, additional, Gleeson, Joseph J, additional, Alkuraya, Fowzan Sami, additional, Lupski, James R, additional, Galehdari, Hamid, additional, Azizimalamiri, Reza, additional, Chung, Wendy K, additional, Baig, Shahid Mahmood, additional, Houlden, Henry, additional, and Severino, Mariasavina, additional

Published
2023
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15. Biallelic MED27 variants lead to variable ponto-cerebello-lental degeneration with movement disorders

Author

Maroofian, Reza; https://orcid.org/0000-0001-6763-1542, Kaiyrzhanov, Rauan; https://orcid.org/0000-0003-1640-4010, Cali, Elisa, Zamani, Mina; https://orcid.org/0000-0002-7005-3787, Zaki, Maha S, Ferla, Matteo; https://orcid.org/0000-0002-5508-4673, Tortora, Domenico; https://orcid.org/0000-0002-5621-4046, Sadeghian, Saeid; https://orcid.org/0000-0002-7935-3401, Saadi, Saadia Maryam, Abdullah, Uzma, Ghayoor Karimiani, Ehsan, Efthymiou, Stephanie; https://orcid.org/0000-0003-4900-9877, Yeşil, Gözde, Alavi, Shahryar, Al Shamsi, Aisha M, Tajsharghi, Homa, Abdel-Hamid, Mohamed S, Saadi, Nebal Waill, Al Mutairi, Fuad, Alabdi, Lama, Beetz, Christian, Ali, Zafar, Toosi, Mehran Beiraghi, Rudnik-Schöneborn, Sabine; https://orcid.org/0000-0001-8332-0672, Babaei, Meisam, Isohanni, Pirjo; https://orcid.org/0000-0002-0156-1614, Muhammad, Jameel, Sheraz, Khan; https://orcid.org/0000-0003-3207-4074, Al Shalan, Maha, Hickey, Scott E, et al, Steindl, Katharina; https://orcid.org/0000-0002-4425-3072, Begemann, Anaïs; https://orcid.org/0000-0001-6762-0819, Rauch, Anita; https://orcid.org/0000-0003-2930-3163, Maroofian, Reza; https://orcid.org/0000-0001-6763-1542, Kaiyrzhanov, Rauan; https://orcid.org/0000-0003-1640-4010, Cali, Elisa, Zamani, Mina; https://orcid.org/0000-0002-7005-3787, Zaki, Maha S, Ferla, Matteo; https://orcid.org/0000-0002-5508-4673, Tortora, Domenico; https://orcid.org/0000-0002-5621-4046, Sadeghian, Saeid; https://orcid.org/0000-0002-7935-3401, Saadi, Saadia Maryam, Abdullah, Uzma, Ghayoor Karimiani, Ehsan, Efthymiou, Stephanie; https://orcid.org/0000-0003-4900-9877, Yeşil, Gözde, Alavi, Shahryar, Al Shamsi, Aisha M, Tajsharghi, Homa, Abdel-Hamid, Mohamed S, Saadi, Nebal Waill, Al Mutairi, Fuad, Alabdi, Lama, Beetz, Christian, Ali, Zafar, Toosi, Mehran Beiraghi, Rudnik-Schöneborn, Sabine; https://orcid.org/0000-0001-8332-0672, Babaei, Meisam, Isohanni, Pirjo; https://orcid.org/0000-0002-0156-1614, Muhammad, Jameel, Sheraz, Khan; https://orcid.org/0000-0003-3207-4074, Al Shalan, Maha, Hickey, Scott E, et al, Steindl, Katharina; https://orcid.org/0000-0002-4425-3072, Begemann, Anaïs; https://orcid.org/0000-0001-6762-0819, and Rauch, Anita; https://orcid.org/0000-0003-2930-3163

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. Utilizing 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-dyskinestic encephalopathy to variable neurodevelopmental disorder with movement abnormalities. It is characterised 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 diff

Published
2023

16. The clinical and genetic spectrum of autosomal-recessive TOR1A-related disorders

Author

Saffari, Afshin, primary, Lau, Tracy, additional, Tajsharghi, Homa, additional, Karimiani, Ehsan Ghayoor, additional, Kariminejad, Ariana, additional, Efthymiou, Stephanie, additional, Zifarelli, Giovanni, additional, Sultan, Tipu, additional, Toosi, Mehran Beiraghi, additional, Sedighzadeh, Sahar, additional, Siu, Victoria Mok, additional, Ortigoza-Escobar, Juan Darío, additional, AlShamsi, Aisha M, additional, Ibrahim, Shahnaz, additional, Al-Sannaa, Nouriya Abbas, additional, Al-Hertani, Walla, additional, Sandra, Whalen, additional, Tarnopolsky, Mark, additional, Alavi, Shahryar, additional, Li, Chumei, additional, Day-Salvatore, Debra-Lynn, additional, Martínez-González, Maria Jesús, additional, Levandoski, Kristin M, additional, Bedoukian, Emma, additional, Madan-Khetarpal, Suneeta, additional, Idleburg, Michaela J, additional, Menezes, Minal Juliet, additional, Siddharth, Aishwarya, additional, Platzer, Konrad, additional, Oppermann, Henry, additional, Smitka, Martin, additional, Collins, Felicity, additional, Lek, Monkol, additional, Shahrooei, Mohmmad, additional, Ghavideldarestani, Maryam, additional, Herman, Isabella, additional, Rendu, John, additional, Faure, Julien, additional, Baker, Janice, additional, Bhambhani, Vikas, additional, Calderwood, Laurel, additional, Akhondian, Javad, additional, Imannezhad, Shima, additional, Mirzadeh, Hanieh Sadat, additional, Hashemi, Narges, additional, Doosti, Mohammad, additional, Safi, Mojtaba, additional, Ahangari, Najmeh, additional, Torbati, Paria Najarzadeh, additional, Abedini, Soheila, additional, Salpietro, Vincenzo, additional, Gulec, Elif Yilmaz, additional, Eshaghian, Safieh, additional, Ghazavi, Mohammadreza, additional, Pascher, Michael T, additional, Vogel, Marina, additional, Abicht, Angela, additional, Moutton, Sébastien, additional, Bruel, Ange-Line, additional, Rieubland, Claudine, additional, Gallati, Sabina, additional, Strom, Tim M, additional, Lochmüller, Hanns, additional, Mohammadi, Mohammad Hasan, additional, Alvi, Javeria Raza, additional, Zackai, Elaine H, additional, Keena, Beth A, additional, Skraban, Cara M, additional, Berger, Seth I, additional, Andrew, Erin H, additional, Rahimian, Elham, additional, Morrow, Michelle M, additional, Wentzensen, Ingrid M, additional, Millan, Francisca, additional, Henderson, Lindsay B, additional, Dafsari, Hormos Salimi, additional, Jungbluth, Heinz, additional, Gomez-Ospina, Natalia, additional, McRae, Anne, additional, Peter, Merlene, additional, Veltra, Danai, additional, Marinakis, Nikolaos M, additional, Sofocleous, Christalena, additional, Ashrafzadeh, Farah, additional, Pehlivan, Davut, additional, Lemke, Johannes R, additional, Melki, Judith, additional, Benezit, Audrey, additional, Bauer, Peter, additional, Weis, Denisa, additional, Lupski, James R, additional, Senderek, Jan, additional, Christodoulou, John, additional, Chung, Wendy K, additional, Goodchild, Rose, additional, Offiah, Amaka C, additional, Moreno-De-Luca, Andres, additional, Suri, Mohnish, additional, Ebrahimi-Fakhari, Darius, additional, Houlden, Henry, additional, and Maroofian, Reza, additional

Published
2023
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17. Biallelic PRMT7 pathogenic variants are associated with a recognizable syndromic neurodevelopmental disorder with short stature, obesity, and craniofacial and digital abnormalities

Author

Cali, Elisa, primary, Suri, Mohnish, additional, Scala, Marcello, additional, Ferla, Matteo P., additional, Alavi, Shahryar, additional, Faqeih, Eissa Ali, additional, Bijlsma, Emilia K., additional, Wigby, Kristen M., additional, Baralle, Diana, additional, Mehrjardi, Mohammad Y.V., additional, Schwab, Jennifer, additional, Platzer, Konrad, additional, Steindl, Katharina, additional, Hashem, Mais, additional, Jones, Marilyn, additional, Niyazov, Dmitriy M., additional, Jacober, Jennifer, additional, Littlejohn, Rebecca Okashah, additional, Weis, Denisa, additional, Zadeh, Neda, additional, Rodan, Lance, additional, Goldenberg, Alice, additional, Lecoquierre, François, additional, Dutra-Clarke, Marina, additional, Horvath, Gabriella, additional, Young, Dana, additional, Orenstein, Naama, additional, Bawazeer, Shahad, additional, Vulto-van Silfhout, Anneke T., additional, Herenger, Yvan, additional, Dehghani, Mohammadreza, additional, Seyedhassani, Seyed Mohammad, additional, Bahreini, Amir, additional, Nasab, Mahya E., additional, Ercan-Sencicek, A. Gulhan, additional, Firoozfar, Zahra, additional, Movahedinia, Mojtaba, additional, Efthymiou, Stephanie, additional, Striano, Pasquale, additional, Karimiani, Ehsan Ghayoor, additional, Salpietro, Vincenzo, additional, Taylor, Jenny C., additional, Redman, Melody, additional, Stegmann, Alexander P.A., additional, Laner, Andreas, additional, Abdel-Salam, Ghada, additional, Li, Megan, additional, Bengala, Mario, additional, Müller, Amelie Johanna, additional, Digilio, Maria C., additional, Rauch, Anita, additional, Gunel, Murat, additional, Titheradge, Hannah, additional, Schweitzer, Daniela N., additional, Kraus, Alison, additional, Valenzuela, Irene, additional, McLean, Scott D., additional, Phornphutkul, Chanika, additional, Salih, Mustafa, additional, Begtrup, Amber, additional, Schnur, Rhonda E., additional, Torti, Erin, additional, Haack, Tobias B., additional, Prada, Carlos E., additional, Alkuraya, Fowzan S., additional, Houlden, Henry, additional, and Maroofian, Reza, additional

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

Author

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

Published
2022
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20. Biallelic Variants in the Ectonucleotidase ENTPD1 Cause a Complex Neurodevelopmental Disorder with Intellectual Disability, Distinct White Matter Abnormalities, and Spastic Paraplegia

Author

Calame, Daniel G., primary, Herman, Isabella, additional, Maroofian, Reza, additional, Marshall, Aren E., additional, Donis, Karina Carvalho, additional, Fatih, Jawid M., additional, Mitani, Tadahiro, additional, Du, Haowei, additional, Grochowski, Christopher M., additional, Sousa, Sergio B., additional, Gijavanekar, Charul, additional, Bakhtiari, Somayeh, additional, Ito, Yoko A., additional, Rocca, Clarissa, additional, Hunter, Jill V., additional, Sutton, V. Reid, additional, Emrick, Lisa T., additional, Boycott, Kym M., additional, Lossos, Alexander, additional, Fellig, Yakov, additional, Prus, Eugenia, additional, Kalish, Yosef, additional, Meiner, Vardiella, additional, Suerink, Manon, additional, Ruivenkamp, Claudia, additional, Muirhead, Kayla, additional, Saadi, Nebal W., additional, Zaki, Maha S., additional, Bouman, Arjan, additional, Barakat, Tahsin Stefan, additional, Skidmore, David L., additional, Osmond, Matthew, additional, Silva, Thiago Oliveira, additional, Murphy, David, additional, Karimiani, Ehsan Ghayoor, additional, Jamshidi, Yalda, additional, Jaddoa, Asaad Ghanim, additional, Tajsharghi, Homa, additional, Jin, Sheng Chih, additional, Abbaszadegan, Mohammad Reza, additional, Ebrahimzadeh‐Vesal, Reza, additional, Hosseini, Susan, additional, Alavi, Shahryar, additional, Bahreini, Amir, additional, Zarean, Elahe, additional, Salehi, Mohammad Mehdi, additional, Al‐Sannaa, Nouriya Abbas, additional, Zifarelli, Giovanni, additional, Bauer, Peter, additional, Robson, Simon C., additional, Coban‐Akdemir, Zeynep, additional, Travaglini, Lorena, additional, Nicita, Francesco, additional, Jhangiani, Shalini N., additional, Gibbs, Richard A., additional, Posey, Jennifer E., additional, Kruer, Michael C., additional, Kernohan, Kristin D., additional, Morales Saute, Jonas A., additional, Houlden, Henry, additional, Vanderver, Adeline, additional, Elsea, Sarah H., additional, Pehlivan, Davut, additional, Marafi, Dana, additional, and Lupski, James R., additional

Published
2022
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21. Bi-allelic loss-of-function variants in PPFIBP1 cause a neurodevelopmental disorder with microcephaly, epilepsy and periventricular calcifications

Author

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

Published
2022
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22. Biallelic PRMT7pathogenic variants are associated with a recognizable syndromic neurodevelopmental disorder with short stature, obesity, and craniofacial and digital abnormalities

Author

Cali, Elisa, Suri, Mohnish, Scala, Marcello, Ferla, Matteo P., Alavi, Shahryar, Faqeih, Eissa Ali, Bijlsma, Emilia K., Wigby, Kristen M., Baralle, Diana, Mehrjardi, Mohammad Y.V., Schwab, Jennifer, Platzer, Konrad, Steindl, Katharina, Hashem, Mais, Jones, Marilyn, Niyazov, Dmitriy M., Jacober, Jennifer, Littlejohn, Rebecca Okashah, Weis, Denisa, Zadeh, Neda, Rodan, Lance, Goldenberg, Alice, Lecoquierre, François, Dutra-Clarke, Marina, Horvath, Gabriella, Young, Dana, Orenstein, Naama, Bawazeer, Shahad, Vulto-van Silfhout, Anneke T., Herenger, Yvan, Dehghani, Mohammadreza, Seyedhassani, Seyed Mohammad, Bahreini, Amir, Nasab, Mahya E., Ercan-Sencicek, A. Gulhan, Firoozfar, Zahra, Movahedinia, Mojtaba, Efthymiou, Stephanie, Striano, Pasquale, Karimiani, Ehsan Ghayoor, Salpietro, Vincenzo, Taylor, Jenny C., Redman, Melody, Stegmann, Alexander P.A., Laner, Andreas, Abdel-Salam, Ghada, Li, Megan, Bengala, Mario, Müller, Amelie Johanna, Digilio, Maria C., Rauch, Anita, Gunel, Murat, Titheradge, Hannah, Schweitzer, Daniela N., Kraus, Alison, Valenzuela, Irene, McLean, Scott D., Phornphutkul, Chanika, Salih, Mustafa, Begtrup, Amber, Schnur, Rhonda E., Torti, Erin, Haack, Tobias B., Prada, Carlos E., Alkuraya, Fowzan S., Houlden, Henry, and Maroofian, Reza

Abstract

Protein arginine methyltransferase 7 (PRMT7) is a member of a family of enzymes that catalyzes the methylation of arginine residues on several protein substrates. Biallelic pathogenic PRMT7variants have previously been associated with a syndromic neurodevelopmental disorder characterized by short stature, brachydactyly, intellectual developmental disability, and seizures. To our knowledge, no comprehensive study describes the detailed clinical characteristics of this syndrome. Thus, we aim to delineate the phenotypic spectrum of PRMT7-related disorder.

Published
2023
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23. Brain monoamine vesicular transport disease caused by homozygous SLC18A2variants: 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

Abstract

Brain monoamine vesicular transport disease is an infantile-onset movement disorder that mimics cerebral palsy. In 2013, the homozygous SLC18A2variant, p.Pro387Leu, was first reported as a cause of this rare disorder, and dopamine agonists were efficient for treating affected individuals from a single large family. To date, only 6 variants have been reported. In this study, we evaluated genotype–phenotype correlations in individuals with biallelic SLC18A2variants.

Published
2023
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25. Biallelic variation in the choline and ethanolamine transporter FLVCR1underlies 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 Nam

Abstract

FLVCR1encodes a solute carrier protein implicated in heme, choline, and ethanolamine transport. Although Flvcr1−/−mice exhibit skeletal malformations and defective erythropoiesis reminiscent of Diamond-Blackfan anemia (DBA), biallelic FLVCR1variants in humans have previously only been linked to childhood or adult-onset ataxia, sensory neuropathy, and retinitis pigmentosa.

Published
2024
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26. Bi-allelic loss-of-function variants in PPFIBP1 cause a neurodevelopmental disorder with microcephaly, epilepsy, and periventricular calcifications

Author

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

Subjects
Neurologi, Cell- och molekylärbiologi, Loss of Heterozygosity, ORGANIZATION, Nervous System Malformations, LIPRINS, mental disease, Nervous System Malformation, Biomedicinsk laboratorievetenskap/teknologi, nervous system malformation, Genetics, Animals, animal, genetics, Biomedical Laboratory Science/Technology, 11 Medical and Health Sciences, Genetics (clinical), Medicinsk genetik, Genetics & Heredity, Science & Technology, Epilepsy, Clinical Laboratory Medicine, Animal, heterozygosity loss, 06 Biological Sciences, Pedigree, Klinisk laboratoriemedicin, Drosophila melanogaster, Neurology, Neurodevelopmental Disorders, Acetylcholinesterase, Microcephaly, CAENORHABDITIS-ELEGANS, Life Sciences & Biomedicine, Medical Genetics, Cell and Molecular Biology
Abstract

PPFIBP1 encodes for the liprin-β1 protein, which has been shown to play a role in neuronal outgrowth and synapse formation in Drosophila melanogaster. By exome and genome sequencing, we detected nine ultra-rare homozygous loss-of-function variants in 16 individuals from 12 unrelated families. The individuals presented with moderate to profound developmental delay, often refractory early-onset epilepsy, and progressive microcephaly. Further common clinical findings included muscular hyper- and hypotonia, spasticity, failure to thrive and short stature, feeding difficulties, impaired vision, and congenital heart defects. Neuroimaging revealed abnormalities of brain morphology with leukoencephalopathy, ventriculomegaly, cortical abnormalities, and intracranial periventricular calcifications as major features. In a fetus with intracranial calcifications, we identified a rare homozygous missense variant that by structural analysis was predicted to disturb the topology of the SAM domain region that is essential for protein-protein interaction. For further insight into the effects of PPFIBP1 loss of function, we performed automated behavioral phenotyping of a Caenorhabditis elegans PPFIBP1/hlb-1 knockout model, which revealed defects in spontaneous and light-induced behavior and confirmed resistance to the acetylcholinesterase inhibitor aldicarb, suggesting a defect in the neuronal presynaptic zone. In conclusion, we establish bi-allelic loss-of-function variants in PPFIBP1 as a cause of an autosomal recessive severe neurodevelopmental disorder with early-onset epilepsy, microcephaly, and periventricular calcifications. CC BY 4.0© 2022 The AuthorsCorrespondence: andre.brown@lms.mrc.ac.uk (A.E.X.B.), konrad.platzer@medizin.uni-leipzig.de (K.P.)We thank all families that participated in this study. This project has received funding from the European Research Council under the European External Action Service Horizon 2020 Research and Innovation Program (grant agreement no. 714853) and was supported by the Medical Research Council through grant MC-A658-5TY30. H.T. was supported by the European External Action Service Seventh Framework Programme for research, technological development, and demonstration under grant agreement no. 608473.

Published
2022

27. Autosomal recessive VWA1 -related disorder: comprehensive analysis of phenotypic variability and genetic mutations.

Author

Nagy S, Pagnamenta AT, Cali E, Braakman HMH, Wijntjes J, Kusters B, Gotkine M, Elpeleg O, Meiner V, Lenberg J, Wigby K, Friedman J, Perry LD, Rossor AM, Uhrova Meszarosova A, Thomasova D, Jacob S, O'Driscoll M, De Simone L, Grange DK, Sommerville R, Firoozfar Z, Alavi S, Mazaheri M, Parmar JM, Lamont PJ, Pini V, Sarkozy A, Muntoni F, Ravenscroft G, Jones E, O'Rourke D, Nel M, Heckmann JM, Kvalsund M, Kapapa MM, Wa Somwe S, Bearden DR, Çakar A, Childs AM, Horvath R, Reilly MM, Houlden H, and Maroofian R

Abstract

A newly identified subtype of hereditary axonal motor neuropathy, characterized by early proximal limb involvement, has been discovered in a cohort of 34 individuals with biallelic variants in von Willebrand factor A domain-containing 1 ( VWA1 ). This study further delineates the disease characteristics in a cohort of 20 individuals diagnosed through genome or exome sequencing, incorporating neurophysiological, laboratory and imaging data, along with data from previously reported cases across three different studies. Newly reported clinical features include hypermobility/hyperlaxity, axial weakness, dysmorphic signs, asymmetric presentation, dystonic features and, notably, upper motor neuron signs. Foot drop, foot deformities and distal leg weakness followed by early proximal leg weakness are confirmed to be initial manifestations. Additionally, this study identified 11 novel VWA1 variants, reaffirming the 10 bp insertion-induced p.Gly25ArgfsTer74 as the most prevalent disease-causing allele, with a carrier frequency of ∼1 in 441 in the UK and Western European population. Importantly, VWA1-related pathology may mimic various neuromuscular conditions, advocating for its inclusion in diverse gene panels spanning hereditary neuropathies to muscular dystrophies. The study highlights the potential of lower quality control filters in exome analysis to enhance diagnostic yield of VWA1 disease that may account for up to 1% of unexplained hereditary neuropathies., Competing Interests: The authors report no competing interests., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Guarantors of Brain.)

Published
2024
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28. Elucidating the clinical and genetic spectrum of inositol polyphosphate phosphatase INPP4A-related neurodevelopmental disorder.

Author

Rawlins LE, Maroofian R, Cannon SJ, Daana M, Zamani M, Ghani S, Leslie JS, Ubeyratna N, Khan N, Khan H, Scardamaglia A, Cloarec R, Khan SA, Umair M, Sadeghian S, Galehdari H, Al-Maawali A, Al-Kindi A, Azizimalamiri R, Shariati G, Ahmad F, Al-Futaisi A, Rodriguez Cruz PM, Salazar-Villacorta A, Ndiaye M, Diop AG, Sedaghat A, Saberi A, Hamid M, Zaki MS, Vona B, Owrang D, Alhashem AM, Obeid M, Khan A, Beydoun A, Najjar M, Tajsharghi H, Zifarelli G, Bauer P, Hakami WS, Al Hashem AM, Boustany RN, Burglen L, Alavi S, Gunning AC, Owens M, Karimiani EG, Gleeson JG, Milh M, Salah S, Khan J, Haucke V, Wright CF, McGavin L, Elpeleg O, Shabbir MI, Houlden H, Ebner M, Baple EL, and Crosby AH

Abstract

Purpose: Biallelic INPP4A variants have recently been associated with severe neurodevelopmental disease in single-case reports. Here, we expand and elucidate the clinical-genetic spectrum and provide a pathomechanistic explanation for genotype-phenotype correlations., Methods: Clinical and genomic investigations of 30 individuals were undertaken alongside molecular and in silico modelling and translation reinitiation studies., Results: We characterize a clinically variable disorder with cardinal features, including global developmental delay, severe-profound intellectual disability, microcephaly, limb weakness, cerebellar signs, and short stature. A more severe presentation associated with biallelic INPP4A variants downstream of exon 4 has additional features of (ponto)cerebellar hypoplasia, reduced cerebral volume, peripheral spasticity, contractures, intractable seizures, and cortical visual impairment. Our studies identify the likely pathomechanism of this genotype-phenotype correlation entailing translational reinitiation in exon 4 resulting in an N-terminal truncated INPP4A protein retaining partial functionality, associated with less severe disease. We also identified identical reinitiation site conservation in Inpp4a -/- mouse models displaying similar genotype-phenotype correlation. Additionally, we show fibroblasts from a single affected individual exhibit disrupted endocytic trafficking pathways, indicating the potential biological basis of the condition., Conclusion: Our studies comprehensively characterize INPP4A-related neurodevelopmental disorder and suggest genotype-specific clinical assessment guidelines. We propose that the potential mechanistic basis of observed genotype-phenotype correlations entails exon 4 translation reinitiation., Competing Interests: Conflict of Interest The authors declare no conflicts of interest., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)

Published
2024
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29. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a severe developmental disorder spectrum.

Author

Calame DG, Wong JH, Panda P, Nguyen DT, Leong NCP, Sangermano R, Patankar SG, Abdel-Hamid MS, AlAbdi L, Safwat S, Flannery KP, Dardas Z, Fatih JM, Murali C, Kannan V, Lotze TE, Herman I, Ammouri F, Rezich B, Efthymiou S, Alavi S, Murphy D, Firoozfar Z, Nasab ME, Bahreini A, Ghasemi M, Haridy NA, Goldouzi HR, Eghbal F, Karimiani EG, Begtrup A, Elloumi H, Srinivasan VM, Gowda VK, Du H, Jhangiani SN, Coban-Akdemir Z, Marafi D, Rodan L, Isikay S, Rosenfeld JA, Ramanathan S, Staton M, Oberg KC, Clark RD, Wenman C, Loughlin S, Saad R, Ashraf T, Male A, Tadros S, Boostani R, Abdel-Salam GMH, Zaki M, Mardi A, Hashemi-Gorji F, Abdalla E, Manzini MC, Pehlivan D, Posey JE, Gibbs RA, Houlden H, Alkuraya FS, Bujakowska K, Maroofian R, Lupski JR, and Nguyen LN

Abstract

Purpose: FLVCR1 encodes a solute carrier protein implicated in heme, choline, and ethanolamine transport. Although Flvcr1 -/- mice exhibit skeletal malformations and defective erythropoiesis reminiscent of Diamond-Blackfan anemia (DBA), biallelic FLVCR1 variants in humans have previously only been linked to childhood or adult-onset ataxia, sensory neuropathy, and retinitis pigmentosa., Methods: We identified individuals with undiagnosed neurodevelopmental disorders and biallelic FLVCR1 variants through international data sharing and characterized the functional consequences of their FLVCR1 variants., Results: We ascertained 30 patients from 23 unrelated families with biallelic FLVCR1 variants and characterized a novel FLVCR1-related phenotype: severe developmental disorders with profound developmental delay, microcephaly (z-score -2.5 to -10.5), brain malformations, epilepsy, spasticity, and premature death. Brain malformations ranged from mild brain volume reduction to hydranencephaly. Severely affected patients share traits, including macrocytic anemia and skeletal malformations, with Flvcr1 -/- mice and DBA. FLVCR1 variants significantly reduce choline and ethanolamine transport and/or disrupt mRNA splicing., Conclusion: These data demonstrate a broad FLVCR1-related phenotypic spectrum ranging from severe multiorgan developmental disorders resembling DBA to adult-onset neurodegeneration. Our study expands our understanding of Mendelian choline and ethanolamine disorders and illustrates the importance of anticipating a wide phenotypic spectrum for known disease genes and incorporating model organism data into genome analysis to maximize genetic testing yield., Competing Interests: Conflict of Interest James R. Lupski has stock ownership in 23andMe, is a paid consultant for Genome International, and is a coinventor on multiple US and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, genomic disorders, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine receives revenue from clinical genetic testing conducted at Baylor Genetics Laboratories. Amber Begtrup and Houda Elloumi are employees of GeneDx, LLC. All other authors declare no conflicts of interest., (Copyright © 2024 American College of Medical Genetics and Genomics. Published by Elsevier Inc. All rights reserved.)

Published
2024
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30. PSMF1 variants cause a phenotypic spectrum from early-onset Parkinson's disease to perinatal lethality by disrupting mitochondrial pathways.

Author

Magrinelli F, Tesson C, Angelova PR, Salazar-Villacorta A, Rodriguez JA, Scardamaglia A, Chung BH, Jaconelli M, Vona B, Esteras N, Kwong AK, Courtin T, Maroofian R, Alavi S, Nirujogi R, Severino M, Lewis PA, Efthymiou S, O'Callaghan B, Buchert R, Sofan L, Lis P, Pinon C, Breedveld GJ, Chui MM, Murphy D, Pitz V, Makarious MB, Cassar M, Hassan BA, Iftikhar S, Rocca C, Bauer P, Tinazzi M, Svetel M, Samanci B, Hanağası HA, Bilgiç B, Obeso JA, Kurtis MM, Cogan G, Başak AN, Kiziltan G, Gül T, Yalçın G, Elibol B, Barišić N, Ng EW, Fan SS, Hershkovitz T, Weiss K, Raza Alvi J, Sultan T, Azmi Alkhawaja I, Froukh T, E Alrukban HA, Fauth C, Schatz UA, Zöggeler T, Zech M, Stals K, Varghese V, Gandhi S, Blauwendraat C, Hardy JA, Lesage S, Bonifati V, Haack TB, Bertoli-Avella AM, Steinfeld R, Alessi DR, Steller H, Brice A, Abramov AY, Bhatia KP, and Houlden H

Abstract

Dissecting biological pathways highlighted by Mendelian gene discovery has provided critical insights into the pathogenesis of Parkinson's disease (PD) and neurodegeneration. This approach ultimately catalyzes the identification of potential biomarkers and therapeutic targets. Here, we identify PSMF1 as a new gene implicated in PD and childhood neurodegeneration. We find that biallelic PSMF1 missense and loss-of-function variants co-segregate with phenotypes from early-onset PD and parkinsonism to perinatal lethality with neurological manifestations across 15 unrelated pedigrees with 22 affected subjects, showing clear genotype-phenotype correlation. PSMF1 encodes the proteasome regulator PSMF1/PI31, a highly conserved, ubiquitously expressed partner of the 20S proteasome and neurodegeneration-associated F-box-O 7 and valosin-containing proteins. We demonstrate that PSMF1 variants impair mitochondrial membrane potential, dynamics and mitophagy in patient-derived fibroblasts. Additionally, we develop models of psmf1 knockdown Drosophila and Psmf1 conditional knockout mouse exhibiting age-dependent motor impairment, with diffuse gliosis in mice. These findings unequivocally link defective PSMF1 to early-onset PD and neurodegeneration and suggest mitochondrial dysfunction as a mechanistic contributor.

Published
2024
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31. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a pleiotropic disease spectrum from adult neurodegeneration to severe developmental disorders.

Author

Calame DG, Wong JH, Panda P, Nguyen DT, Leong NCP, Sangermano R, Patankar SG, Abdel-Hamid M, AlAbdi L, Safwat S, Flannery KP, Dardas Z, Fatih JM, Murali C, Kannan V, Lotze TE, Herman I, Ammouri F, Rezich B, Efthymiou S, Alavi S, Murphy D, Firoozfar Z, Nasab ME, Bahreini A, Ghasemi M, Haridy NA, Goldouzi HR, Eghbal F, Karimiani EG, Srinivasan VM, Gowda VK, Du H, Jhangiani SN, Coban-Akdemir Z, Marafi D, Rodan L, Isikay S, Rosenfeld JA, Ramanathan S, Staton M, Kerby C Oberg, Clark RD, Wenman C, Loughlin S, Saad R, Ashraf T, Male A, Tadros S, Boostani R, Abdel-Salam GMH, Zaki M, Abdalla E, Manzini MC, Pehlivan D, Posey JE, Gibbs RA, Houlden H, Alkuraya FS, Bujakowska K, Maroofian R, Lupski JR, and Nguyen LN

Abstract

FLVCR1 encodes Feline leukemia virus subgroup C receptor 1 (FLVCR1), a solute carrier (SLC) transporter within the Major Facilitator Superfamily. FLVCR1 is a widely expressed transmembrane protein with plasma membrane and mitochondrial isoforms implicated in heme, choline, and ethanolamine transport. While Flvcr1 knockout mice die in utero with skeletal malformations and defective erythropoiesis reminiscent of Diamond-Blackfan anemia, rare biallelic pathogenic FLVCR1 variants are linked to childhood or adult-onset neurodegeneration of the retina, spinal cord, and peripheral nervous system. We ascertained from research and clinical exome sequencing 27 individuals from 20 unrelated families with biallelic ultra-rare missense and predicted loss-of-function (pLoF) FLVCR1 variant alleles. We characterize an expansive FLVCR1 phenotypic spectrum ranging from adult-onset retinitis pigmentosa to severe developmental disorders with microcephaly, reduced brain volume, epilepsy, spasticity, and premature death. The most severely affected individuals, including three individuals with homozygous pLoF variants, share traits with Flvcr1 knockout mice and Diamond-Blackfan anemia including macrocytic anemia and congenital skeletal malformations. Pathogenic FLVCR1 missense variants primarily lie within transmembrane domains and reduce choline and ethanolamine transport activity compared with wild-type FLVCR1 with minimal impact on FLVCR1 stability or subcellular localization. Several variants disrupt splicing in a mini-gene assay which may contribute to genotype-phenotype correlations. Taken together, these data support an allele-specific gene dosage model in which phenotypic severity reflects residual FLVCR1 activity. This study expands our understanding of Mendelian disorders of choline and ethanolamine transport and demonstrates the importance of choline and ethanolamine in neurodevelopment and neuronal homeostasis., Competing Interests: Potential Conflict of Interest J.R.L. has stock ownership in 23andMe, is a paid consultant for Genome International, and is a co-inventor on multiple United States and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, genomic disorders, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine receives revenue from clinical genetic testing conducted at Baylor Genetics (BG) Laboratories. Other authors have no potential conflicts to disclose.

Published
2024
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