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2. CDKL5 deficiency-related neurodevelopmental disorders: a multi-center cohort study in Italy

Author

Dell’Isola, Giovanni Battista, Fattorusso, Antonella, Pisani, Francesco, Mastrangelo, Mario, Cordelli, Duccio Maria, Pavone, Piero, Parisi, Pasquale, Ferretti, Alessandro, Operto, Francesca Felicia, Elia, Maurizio, Carotenuto, Marco, Pruna, Dario, Matricardi, Sara, Spezia, Elisabetta, Spalice, Alberto, Scorrano, Giovanna, Savasta, Salvatore, Prontera, Paolo, Di Cara, Giuseppe, Fruttini, Daniela, Salpietro, Vincenzo, Striano, Pasquale, and Verrotti, Alberto

Published
2024
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3. Biallelic NAA60 variants with impaired n-terminal acetylation capacity cause autosomal recessive primary familial brain calcifications.

Author

Chelban, Viorica, Aksnes, Henriette, Maroofian, Reza, LaMonica, Lauren, Seabra, Luis, Siggervåg, Anette, Devic, Perrine, Shamseldin, Hanan, Vandrovcova, Jana, Murphy, David, Richard, Anne-Claire, Quenez, Olivier, Bonnevalle, Antoine, Zanetti, M, Kaiyrzhanov, Rauan, Salpietro, Vincenzo, Efthymiou, Stephanie, Schottlaender, Lucia, Morsy, Heba, Scardamaglia, Annarita, Tariq, Ambreen, Pagnamenta, Alistair, Pennavaria, Ajia, Krogstad, Liv, Bekkelund, Åse, Caiella, Alessia, Glomnes, Nina, Brønstad, Kirsten, Tury, Sandrine, Moreno De Luca, Andrés, Boland-Auge, Anne, Olaso, Robert, Deleuze, Jean-François, Anheim, Mathieu, Cretin, Benjamin, Vona, Barbara, Alajlan, Fahad, Abdulwahab, Firdous, Battini, Jean-Luc, İpek, Rojan, Bauer, Peter, Zifarelli, Giovanni, Gungor, Serdal, Kurul, Semra, Lochmuller, Hanns, Daas, Sahar, Fakhro, Khalid, Gómez-Pascual, Alicia, Botía, Juan, Wood, Nicholas, Horvath, Rita, Ernst, Andreas, Rothman, James, McEntagart, Meriel, Crow, Yanick, Alkuraya, Fowzan, Nicolas, Gaël, Arnesen, Thomas, and Houlden, Henry

Subjects
Humans, Acetylation, Brain, Brain Diseases, Inheritance Patterns, Mutation, Phosphates, Sodium-Phosphate Cotransporter Proteins, Type III
Abstract

Primary familial brain calcification (PFBC) is characterized by calcium deposition in the brain, causing progressive movement disorders, psychiatric symptoms, and cognitive decline. PFBC is a heterogeneous disorder currently linked to variants in six different genes, but most patients remain genetically undiagnosed. Here, we identify biallelic NAA60 variants in ten individuals from seven families with autosomal recessive PFBC. The NAA60 variants lead to loss-of-function with lack of protein N-terminal (Nt)-acetylation activity. We show that the phosphate importer SLC20A2 is a substrate of NAA60 in vitro. In cells, loss of NAA60 caused reduced surface levels of SLC20A2 and a reduction in extracellular phosphate uptake. This study establishes NAA60 as a causal gene for PFBC, provides a possible biochemical explanation of its disease-causing mechanisms and underscores NAA60-mediated Nt-acetylation of transmembrane proteins as a fundamental process for healthy neurobiological functioning.

Published
2024

4. Emergence of transmissible SARS-CoV-2 variants with decreased sensitivity to antivirals in immunocompromised patients with persistent infections

Author

Nooruzzaman, Mohammed, Johnson, Katherine E. E., Rani, Ruchi, Finkelsztein, Eli J., Caserta, Leonardo C., Kodiyanplakkal, Rosy P., Wang, Wei, Hsu, Jingmei, Salpietro, Maria T., Banakis, Stephanie, Albert, Joshua, Westblade, Lars F., Zanettini, Claudio, Marchionni, Luigi, Soave, Rosemary, Ghedin, Elodie, Diel, Diego G., and Salvatore, Mirella

Published
2024
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5. Variants in the WDR44 WD40-repeat domain cause a spectrum of ciliopathy by impairing ciliogenesis initiation

Author

Accogli, Andrea, Shakya, Saurabh, Yang, Taewoo, Insinna, Christine, Kim, Soo Yeon, Bell, David, Butov, Kirill R., Severino, Mariasavina, Niceta, Marcello, Scala, Marcello, Lee, Hyun Sik, Yoo, Taekyeong, Stauffer, Jimmy, Zhao, Huijie, Fiorillo, Chiara, Pedemonte, Marina, Diana, Maria C., Baldassari, Simona, Zakharova, Viktoria, Shcherbina, Anna, Rodina, Yulia, Fagerberg, Christina, Roos, Laura Sønderberg, Wierzba, Jolanta, Dobosz, Artur, Gerard, Amanda, Potocki, Lorraine, Rosenfeld, Jill A., Lalani, Seema R., Scott, Tiana M., Scott, Daryl, Azamian, Mahshid S., Louie, Raymond, Moore, Hannah W., Champaigne, Neena L., Hollingsworth, Grace, Torella, Annalaura, Nigro, Vincenzo, Ploski, Rafal, Salpietro, Vincenzo, Zara, Federico, Pizzi, Simone, Chillemi, Giovanni, Ognibene, Marzia, Cooney, Erin, Do, Jenny, Linnemann, Anders, Larsen, Martin J., Specht, Suzanne, Walters, Kylie J., Choi, Hee-Jung, Choi, Murim, Tartaglia, Marco, Youkharibache, Phillippe, Chae, Jong-Hee, Capra, Valeria, Park, Sung-Gyoo, and Westlake, Christopher J.

Published
2024
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6. Correction to: CDKL5 deficiency-related neurodevelopmental disorders: a multi-center cohort study in Italy

Author

Dell’Isola, Giovanni Battista, Fattorusso, Antonella, Pisani, Francesco, Mastrangelo, Mario, Cordelli, Duccio Maria, Pavone, Piero, Parisi, Pasquale, Ferretti, Alessandro, Operto, Francesca Felicia, Elia, Maurizio, Carotenuto, Marco, Pruna, Dario, Matricardi, Sara, Spezia, Elisabetta, Spalice, Alberto, Scorrano, Giovanna, Savasta, Salvatore, Prontera, Paolo, Di Cara, Giuseppe, Fruttini, Daniela, Salpietro, Vincenzo, Striano, Pasquale, and Verrotti, Alberto

Published
2024
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8. Lunapark deficiency leads to an autosomal recessive neurodevelopmental phenotype with a degenerative course, epilepsy and distinct brain anomalies

Author

Accogli, Andrea, Zaki, Maha S, Al-Owain, Mohammed, Otaif, Mansour Y, Jackson, Adam, Argilli, Emanuela, Chandler, Kate E, De Goede, Christian GEL, Cora, Tülün, Alvi, Javeria Raza, Eslahi, Atieh, Asl Mohajeri, Mahsa Sadat, Ashtiani, Setareh, Au, PY Billie, Scocchia, Alicia, Alakurtti, Kirsi, Pagnamenta, Alistair T, Toosi, Mehran Beiraghi, Ghayoor Karimiani, Ehsan, Mojarrad, Majid, Arab, Fatemeh, Duymuş, Fahrettin, Scantlebury, Morris H, Yeşil, Gözde, Rosenfeld, Jill Anne, Türkyılmaz, Ayberk, Sağer, Safiye Güneş, Sultan, Tipu, Ashrafzadeh, Farah, Zahra, Tatheer, Rahman, Fatima, Maqbool, Shazia, Abdel-Hamid, Mohamed S, Issa, Mahmoud, Efthymiou, Stephanie, Bauer, Peter, Zifarelli, Giovanni, Salpietro, Vincenzo, Al-Hassnan, Zuhair, Banka, Siddharth, Sherr, Elliot H, Gleeson, Joseph G, Striano, Pasquale, Houlden, Henry, Severino, Mariasavina, and Maroofian, Reza

Subjects
Pediatric, Neurosciences, Genetics, Neurodegenerative, Clinical Research, Congenital Structural Anomalies, Brain Disorders, Rare Diseases, Human Genome, Epilepsy, 2.1 Biological and endogenous factors, Aetiology, Mental health, Neurological, Clinical sciences, Biological psychology
Abstract

Abstract: LNPK encodes a conserved membrane protein that stabilizes the junctions of the tubular endoplasmic reticulum network playing crucial roles in diverse biological functions. Recently, homozygous variants in LNPK were shown to cause a neurodevelopmental disorder (OMIM#618090) in four patients displaying developmental delay, epilepsy, and non-specific brain malformations including corpus callosum hypoplasia and variable impairment of cerebellum. We sought to delineate the molecular and phenotypic spectrum of LNPK-related disorder. Exome or genome sequencing was carried out in eleven families. Thorough clinical and neuroradiological evaluation was performed for all the affected individuals, including review of previously reported patients. We identified twelve distinct homozygous loss-of-function variants in sixteen individuals presenting with moderate to profound developmental delay, cognitive impairment, regression, refractory epilepsy and a recognizable neuroimaging pattern consisting of corpus callosum hypoplasia and signal alterations of the forceps minor (“ear-of-the-lynx” sign), variably associated with substantia nigra signal alterations, mild brain atrophy, short midbrain, and cerebellar hypoplasia/atrophy. In summary, we define the core phenotype of LNPK-related disorder and expand the list of neurological disorders presenting with the “ear of the lynx” sign suggesting a possible common underlying mechanism related to endoplasmic reticulum-phagy dysfunction.

Published
2023

9. BRAT1-related disorders: phenotypic spectrum and phenotype-genotype correlations from 97 patients.

Author

Engel, Camille, Valence, Stéphanie, Delplancq, Geoffroy, Maroofian, Reza, Accogli, Andrea, Agolini, Emanuele, Alkuraya, Fowzan, Baglioni, Valentina, Bagnasco, Irene, Becmeur-Lefebvre, Mathilde, Bertini, Enrico, Borggraefe, Ingo, Brischoux-Boucher, Elise, Bruel, Ange-Line, Brusco, Alfredo, Bubshait, Dalal, Cabrol, Christelle, Cilio, Maria, Cornet, Marie-Coralie, Coubes, Christine, Danhaive, Olivier, Delague, Valérie, Denommé-Pichon, Anne-Sophie, Di Giacomo, Marilena, Doco-Fenzy, Martine, Engels, Hartmut, Cremer, Kirsten, Gérard, Marion, Gleeson, Joseph, Heron, Delphine, Goffeney, Joanna, Guimier, Anne, Harms, Frederike, Houlden, Henry, Iacomino, Michele, Kaiyrzhanov, Rauan, Kamien, Benjamin, Karimiani, Ehsan, Kraus, Dror, Kuentz, Paul, Kutsche, Kerstin, Lederer, Damien, Massingham, Lauren, Mignot, Cyril, Morris-Rosendahl, Déborah, Nagarajan, Lakshmi, Odent, Sylvie, Ormières, Clothilde, Partlow, Jennifer, Pasquier, Laurent, Penney, Lynette, Philippe, Christophe, Piccolo, Gianluca, Poulton, Cathryn, Putoux, Audrey, Rio, Marlène, Rougeot, Christelle, Salpietro, Vincenzo, Scheffer, Ingrid, Schneider, Amy, Srivastava, Siddharth, Straussberg, Rachel, Striano, Pasquale, Valente, Enza, Venot, Perrine, Villard, Laurent, Vitobello, Antonio, Wagner, Johanna, Wagner, Matias, Zaki, Maha, Zara, Federizo, Lesca, Gaetan, Yassaee, Vahid, Miryounesi, Mohammad, Hashemi-Gorji, Farzad, Beiraghi, Mehran, Ashrafzadeh, Farah, Galehdari, Hamid, Walsh, Christopher, Novelli, Antonio, Tacke, Moritz, Sadykova, Dinara, Maidyrov, Yerdan, Koneev, Kairgali, Shashkin, Chingiz, Capra, Valeria, Zamani, Mina, Van Maldergem, Lionel, Burglen, Lydie, and Piard, Juliette

Subjects
Humans, Nuclear Proteins, Epilepsy, Phenotype, Genotype, Genetic Association Studies, Neurodegenerative Diseases, Atrophy
Abstract

BRAT1 biallelic variants are associated with rigidity and multifocal seizure syndrome, lethal neonatal (RMFSL), and neurodevelopmental disorder associating cerebellar atrophy with or without seizures syndrome (NEDCAS). To date, forty individuals have been reported in the literature. We collected clinical and molecular data from 57 additional cases allowing us to study a large cohort of 97 individuals and draw phenotype-genotype correlations. Fifty-nine individuals presented with BRAT1-related RMFSL phenotype. Most of them had no psychomotor acquisition (100%), epilepsy (100%), microcephaly (91%), limb rigidity (93%), and died prematurely (93%). Thirty-eight individuals presented a non-lethal phenotype of BRAT1-related NEDCAS phenotype. Seventy-six percent of the patients in this group were able to walk and 68% were able to say at least a few words. Most of them had cerebellar ataxia (82%), axial hypotonia (79%) and cerebellar atrophy (100%). Genotype-phenotype correlations in our cohort revealed that biallelic nonsense, frameshift or inframe deletion/insertion variants result in the severe BRAT1-related RMFSL phenotype (46/46; 100%). In contrast, genotypes with at least one missense were more likely associated with NEDCAS (28/34; 82%). The phenotype of patients carrying splice variants was variable: 41% presented with RMFSL (7/17) and 59% with NEDCAS (10/17).

Published
2023

10. Clinical and Neurophysiologic Phenotypes in Neonates With BRAT1 Encephalopathy

Author

Carapancea, Evelina, Cornet, Marie-Coralie, Milh, Mathieu, De Cosmo, Lucrezia, Huang, Eric J, Granata, Tiziana, Striano, Pasquale, Ceulemans, Berten, Stein, Anja, Morris-Rosendahl, Deborah, Conti, Greta, Mitra, Nipa, Raymond, F Lucy, Rowitch, David H, Solazzi, Roberta, Vercellino, Fabiana, De Liso, Paola, D'Onofrio, Gianluca, Boniver, Clementina, Danhaive, Olivier, Carkeek, Katherine, Salpietro, Vincenzo, Weckhuysen, Sarah, Fedrigo, Marny, Angelini, Annalisa, Castellotti, Barbara, Lederer, Damien, Benoit, Valerie, Raviglione, Federico, Guerrini, Renzo, Dilena, Robertino, and Cilio, Maria Roberta

Subjects
Paediatrics, Biomedical and Clinical Sciences, Neurosciences, Perinatal Period - Conditions Originating in Perinatal Period, Pediatric, Clinical Research, Brain Disorders, Neurodegenerative, Infant Mortality, Neurological, Humans, Myoclonus, Apnea, Hyperekplexia, Bradycardia, Brain Diseases, Seizures, Phenotype, Muscle Hypertonia, Nuclear Proteins, Clinical Sciences, Cognitive Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

Background and objectivesBRAT1 encephalopathy is an ultra-rare autosomal recessive neonatal encephalopathy. We delineate the neonatal electroclinical phenotype at presentation and provide insights for early diagnosis.MethodsThrough a multinational collaborative, we studied a cohort of neonates with encephalopathy associated with biallelic pathogenic variants in BRAT1 for whom detailed clinical, neurophysiologic, and neuroimaging information was available from the onset of symptoms. Neuropathologic changes were also analyzed.ResultsWe included 19 neonates. Most neonates were born at term (16/19) from nonconsanguineous parents. 15/19 (79%) were admitted soon after birth to a neonatal intensive care unit, exhibiting multifocal myoclonus, both spontaneous and exacerbated by stimulation. 7/19 (37%) had arthrogryposis at birth, and all except 1 progressively developed hypertonia in the first week of life. Multifocal myoclonus, which was present in all but 1 infant, was the most prominent manifestation and did not show any EEG correlate in 16/19 (84%). Video-EEG at onset was unremarkable in 14/19 (74%) infants, and 6 (33%) had initially been misdiagnosed with hyperekplexia. Multifocal seizures were observed at a median age of 14 days (range: 1-29). During the first months of life, all infants developed progressive encephalopathy, acquired microcephaly, prolonged bouts of apnea, and bradycardia, leading to cardiac arrest and death at a median age of 3.5 months (range: 20 days to 30 months). Only 7 infants (37%) received a definite diagnosis before death, at a median age of 34 days (range: 25-126), and almost two-thirds (12/19, 63%) were diagnosed 8 days to 12 years postmortem (median: 6.5 years). Neuropathology examination, performed in 3 patients, revealed severely delayed myelination and diffuse astrogliosis, sparing the upper cortical layers.DiscussionBRAT1 encephalopathy is a neonatal-onset, rapidly progressive neurologic disorder. Neonates are often misdiagnosed as having hyperekplexia, and many die undiagnosed. The key phenotypic features are multifocal myoclonus, an organized EEG, progressive, persistent, and diffuse hypertonia, and an evolution into refractory multifocal seizures, prolonged bouts of apnea, bradycardia, and early death. Early recognition of BRAT1 encephalopathy allows for prompt workup, appropriate management, and genetic counseling.

Published
2023

11. De novo KCNA6 variants with attenuated KV1.6 channel deactivation in patients with epilepsy

Author

Salpietro, Vincenzo, Deforie, Valentina Galassi, Efthymiou, Stephanie, O'Connor, Emer, Marcé‐Grau, Anna, Maroofian, Reza, Striano, Pasquale, Zara, Federico, Morrow, Michelle M, Group, SYNAPS Study, Reich, Adi, Blevins, Amy, Sala‐Coromina, Júlia, Accogli, Andrea, Fortuna, Sara, Alesandrini, Marie, Au, PY Billie, Singhal, Nilika Shah, Cogne, Benjamin, Isidor, Bertrand, Hanna, Michael G, Macaya, Alfons, Kullmann, Dimitri M, Houlden, Henry, and Männikkö, Roope

Subjects
Medical Physiology, Biomedical and Clinical Sciences, Pediatric, Neurodegenerative, Genetics, Biotechnology, Brain Disorders, Epilepsy, Neurosciences, 2.1 Biological and endogenous factors, Aetiology, Neurological, Humans, Mutation, Neurodevelopmental Disorders, Seizures, Kv1.6 Potassium Channel, K(V)1 Shaker channel family, neurodevelopmental disorder, voltage-gated potassium channels, whole exome sequencing, SYNAPS Study Group, KV1 Shaker channel family, Clinical Sciences, Neurology & Neurosurgery, Clinical sciences
Abstract

ObjectiveMutations in the genes encoding neuronal ion channels are a common cause of Mendelian neurological diseases. We sought to identify novel de novo sequence variants in cases with early infantile epileptic phenotypes and neurodevelopmental anomalies.MethodsFollowing clinical diagnosis, we performed whole exome sequencing of the index cases and their parents. Identified channel variants were expressed in Xenopus oocytes and their functional properties assessed using two-electrode voltage clamp.ResultsWe identified novel de novo variants in KCNA6 in four unrelated individuals variably affected with neurodevelopmental disorders and seizures with onset in the first year of life. Three of the four identified mutations affect the pore-lining S6 α-helix of KV 1.6. A prominent finding of functional characterization in Xenopus oocytes was that the channel variants showed only minor effects on channel activation but slowed channel closure and shifted the voltage dependence of deactivation in a hyperpolarizing direction. Channels with a mutation affecting the S6 helix display dominant effects on channel deactivation when co-expressed with wild-type KV 1.6 or KV 1.1 subunits.SignificanceThis is the first report of de novo nonsynonymous variants in KCNA6 associated with neurological or any clinical features. Channel variants showed a consistent effect on channel deactivation, slowing the rate of channel closure following normal activation. This specific gain-of-function feature is likely to underlie the neurological phenotype in our patients. Our data highlight KCNA6 as a novel channelopathy gene associated with early infantile epileptic phenotypes and neurodevelopmental anomalies.

Published
2023

12. Neurological and psychiatric phenotype of a multicenter cohort of patients with SETD5-related neurodevelopmental disorder

Author

De Falco, Alessandro, De Dominicis, Angela, Trivisano, Marina, Specchio, Nicola, Digilio, Maria Cristina, Piscopo, Carmelo, Capra, Valeria, Scala, Marcello, Iacomino, Michele, Accogli, Andrea, Romano, Ferruccio, Salpietro, Vincenzo, Mancardi, Margherita, Striano, Pasquale, Operto, Francesca Felicia, Gburek-Augustat, Janina, Perrin, Laurence, Capri, Yline, Lupo, Viviana, Elia, Maurizio, Manti, Filippo, Pisani, Francesco, Brunetti-Pierri, Nicola, and Terrone, Gaetano

Published
2025
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13. Distinct neurodevelopmental and epileptic phenotypes associated with gain- and loss-of-function GABRB2 variantsResearch in context

Author

Nazanin Azarinejad Mohammadi, Philip Kiær Ahring, Vivian Wan Yu Liao, Han Chow Chua, Sebastián Ortiz de la Rosa, Katrine Marie Johannesen, Yael Michaeli-Yossef, Aline Vincent-Devulder, Catherine Meridda, Ange-Line Bruel, Alessandra Rossi, Chirag Patel, Joerg Klepper, Paolo Bonanni, Sara Minghetti, Marina Trivisano, Nicola Specchio, David Amor, Stéphane Auvin, Sarah Baer, Pierre Meyer, Mathieu Milh, Vincenzo Salpietro, Reza Maroofian, Johannes R. Lemke, Sarah Weckhuysen, Palle Christophersen, Guido Rubboli, Mary Chebib, Anders A. Jensen, Nathan L. Absalom, and Rikke Steensbjerre Møller

Subjects
GABAA receptors, Gain-of-function, Epilepsy, Seizures, Dystonia, Movement disorders, Medicine, Medicine (General), R5-920
Abstract

Summary: Background: Variants in GABRB2, encoding the β2 subunit of the γ-aminobutyric acid type A (GABAA) receptor, can result in a diverse range of conditions, ranging from febrile seizures to severe developmental and epileptic encephalopathies. However, the mechanisms underlying the risk of developing milder vs more severe forms of disorder remain unclear. In this study, we conducted a comprehensive genotype–phenotype correlation analysis in a cohort of individuals with GABRB2 variants. Methods: Genetic and electroclinical data of 42 individuals harbouring 26 different GABRB2 variants were collected and accompanied by electrophysiological analysis of the effects of the variants on receptor function. Findings: Electrophysiological assessments of α1β2γ2 receptors revealed that 25/26 variants caused dysfunction to core receptor properties such as GABA sensitivity. Of these, 17 resulted in gain-of-function (GOF) while eight yielded loss-of-function traits (LOF). Genotype-phenotype correlation analysis revealed that individuals harbouring GOF variants suffered from severe developmental delay/intellectual disability (DD/ID, 74%), movement disorders such as dystonia or dyskinesia (59%), microcephaly (50%) and high risk of early mortality (26%). Conversely, LOF variants were associated with milder disease manifestations. Individuals with these variants typically exhibited fever-triggered seizures (92%), milder degrees of DD/ID (85%), and maintained ambulatory function (85%). Notably, severe movement disorders or microcephaly were not reported in individuals with loss-of-function variants. Interpretation: The data reveals that genetic variants in GABRB2 can lead to both gain and loss-of-function, and this divergence is correlated with distinct disease manifestations. Utilising this information, we constructed a diagnostic flowchart that aids in predicting the pathogenicity of recently identified variants by considering clinical phenotypes. Funding: This work was funded by the Australian National Health & Medical Research Council, the Novo Nordisk Foundation and The Lundbeck Foundation.

Published
2024
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15. De novo variants in FRYL are associated with developmental delay, intellectual disability, and dysmorphic features

Author

Burrage, Lindsay C., Heaney, Jason D., Kim, Seon-Young, Lanza, Denise G., Liu, Zhandong, Mao, Dongxue, Milosavljevic, Aleksander, Nagamani, Sandesh C.S., Posey, Jennifer E., Ramamurthy, Uma, Ramanathan, Vivek, Rogers, Jeffrey, Rosenfeld, Jill A., Roth, Matthew, Zahedi Darshoori, Ramin, Pan, Xueyang, Tao, Alice M., Lu, Shenzhao, Ma, Mengqi, Hannan, Shabab B., Slaugh, Rachel, Drewes Williams, Sarah, O'Grady, Lauren, Kanca, Oguz, Person, Richard, Carter, Melissa T., Platzer, Konrad, Schnabel, Franziska, Abou Jamra, Rami, Roberts, Amy E., Newburger, Jane W., Revah-Politi, Anya, Granadillo, Jorge L., Stegmann, Alexander P.A., Sinnema, Margje, Accogli, Andrea, Salpietro, Vincenzo, Capra, Valeria, Ghaloul-Gonzalez, Lina, Brueckner, Martina, Simon, Marleen E.H., Sweetser, David A., Glinton, Kevin E., Kirk, Susan E., Wangler, Michael F., Yamamoto, Shinya, Chung, Wendy K., and Bellen, Hugo J.

Published
2024
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16. De novo variants in DENND5B cause a neurodevelopmental disorder

Author

Acosta, Maria T., Adams, David R., Alvarez, Raquel L., Alvey, Justin, Allworth, Aimee, Andrews, Ashley, Ashley, Euan A., Afzali, Ben, Bacino, Carlos A., Bademci, Guney, Balasubramanyam, Ashok, Baldridge, Dustin, Bale, Jim, Bamshad, Michael, Barbouth, Deborah, Bayrak-Toydemir, Pinar, Beck, Anita, Beggs, Alan H., Behrens, Edward, Bejerano, Gill, Bellen, Hugo J., Bennett, Jimmy, Bernstein, Jonathan A., Berry, Gerard T., Bican, Anna, Bivona, Stephanie, Blue, Elizabeth, Bohnsack, John, Bonner, Devon, Botto, Lorenzo, Briere, Lauren C., Brown, Gabrielle, Burke, Elizabeth A., Burrage, Lindsay C., Butte, Manish J., Byers, Peter, Byrd, William E., Carey, John, Carrasquillo, Olveen, Cassini, Thomas, Chang, Ta Chen Peter, Chanprasert, Sirisak, Chao, HsiaoTuan, Chinn, Ivan, Clark, Gary D., Coakley, Terra R., Cobban, Laurel A., Cogan, Joy D., Coggins, Matthew, Cole, F. Sessions, Colley, Heather A., Cope, Heidi, Corona, Rosario, Craigen, William J., Crouse, Andrew B., Cunningham, Michael, D’Souza, Precilla, Dai, Hongzheng, Dasari, Surendra, Davis, Joie, Dayal, Jyoti G., Delgado, Margaret, Dell'Angelica, Esteban C., Dipple, Katrina, Doherty, Daniel, Dorrani, Naghmeh, Doss, Argenia L., Douine, Emilie D., Earl, Dawn, Eckstein, David J., Emrick, Lisa T., Eng, Christine M., Falk, Marni, Fieg, Elizabeth L., Fisher, Paul G., Fogel, Brent L., Forghani, Irman, Fu, Jiayu, Gahl, William A., Glass, Ian, Goddard, Page C., Godfrey, Rena A., Grajewski, Alana, Gropman, Andrea, Halley, Meghan C., Hamid, Rizwan, Hanchard, Neal, Hassey, Kelly, Hayes, Nichole, High, Frances, Hing, Anne, Hisama, Fuki M., Holm, Ingrid A., Hom, Jason, Horike-Pyne, Martha, Huang, Alden, Huang, Yan, Hutchison, Sarah, Introne, Wendy, Isasi, Rosario, Izumi, Kosuke, Jarvik, Gail P., Jarvik, Jeffrey, Jayadev, Suman, Jean-Marie, Orpa, Jobanputra, Vaidehi, Kaitryn, Emerald, Ketkar, Shamika, Kiley, Dana, Kilich, Gonench, Kobren, Shilpa N., Kohane, Isaac S., Kohler, Jennefer N., Korrick, Susan, Krakow, Deborah, Krasnewich, Donna M., Kravets, Elijah, Lalani, Seema R., Lam, Byron, Lam, Christina, Lanpher, Brendan C., Lanza, Ian R., LeBlanc, Kimberly, Lee, Brendan H., Levitt, Roy, Lewis, Richard A., Liu, Pengfei, Liu, Xue Zhong, Longo, Nicola, Loo, Sandra K., Loscalzo, Joseph, Maas, Richard L., Macnamara, Ellen F., MacRae, Calum A., Maduro, Valerie V., Maghiro, AudreyStephannie, Mahoney, Rachel, Malicdan, May Christine V., Mamounas, Laura A., Manolio, Teri A., Mao, Rong, Marom, Ronit, Marth, Gabor, Martin, Beth A., Martin, Martin G., Martínez-Agosto, Julian A., Marwaha, Shruti, McCauley, Jacob, McConkie-Rosell, Allyn, McCray, Alexa T., McGee, Elisabeth, Might, Matthew, Miller, Danny, Mirzaa, Ghayda, Morava, Eva, Moretti, Paolo, Morimoto, Marie, Mulvihill, John J., Nakano-Okuno, Mariko, Nelson, Stanley F., Nieves-Rodriguez, Shirley, Novacic, Donna, Oglesbee, Devin, Orengo, James P., Pace, Laura, Pak, Stephen, Pallais, J. Carl, Papp, Jeanette C., Parker, Neil H., Petcharet, Leoyklang, Phillips, John A., III, Posey, Jennifer E., Potocki, Lorraine, Swerdzewski, Barbara N. Pusey, Quinlan, Aaron, Rao, Deepak A., Raper, Anna, Raskind, Wendy, Renteria, Genecee, Reuter, Chloe M., Rives, Lynette, Robertson, Amy K., Rodan, Lance H., Rosenfeld, Jill A., Rosenthal, Elizabeth, Rossignol, Francis, Ruzhnikov, Maura, Sabaii, Marla, Sacco, Ralph, Sampson, Jacinda B., Saporta, Mario, Schaechter, Judy, Schedl, Timothy, Schoch, Kelly, Scott, Daryl A., Seto, Elaine, Sharma, Prashant, Shashi, Vandana, Shelkowitz, Emily, Sheppeard, Sam, Shin, Jimann, Silverman, Edwin K., Sinsheimer, Janet S., Sisco, Kathy, Smith, Edward C., Smith, Kevin S., Solnica-Krezel, Lilianna, Solomon, Ben, Spillmann, Rebecca C., Stergachis, Andrew, Stoler, Joan M., Sullivan, Kathleen, Sullivan, Jennifer A., Sutton, Shirley, Sweetser, David A., Sybert, Virginia, Tabor, Holly K., Tan, Queenie K.-G., Tan, Amelia L.M., Tarakad, Arjun, Taylor, Herman, Tekin, Mustafa, Telischi, Fred, Thorson, Willa, Tifft, Cynthia J., Toro, Camilo, Tran, Alyssa A., Ungar, Rachel A., Urv, Tiina K., Vanderver, Adeline, Velinder, Matt, Viskochil, Dave, Vogel, Tiphanie P., Wahl, Colleen E., Walker, Melissa, Walley, Nicole M., Wambach, Jennifer, Wan, Jijun, Wang, Lee-kai, Wangler, Michael F., Ward, Patricia A., Wegner, Daniel, Weisz Hubshman, Monika, Wener, Mark, Wenger, Tara, Westerfield, Monte, Wheeler, Matthew T., Whitlock, Jordan, Wolfe, Lynne A., Worley, Kim, Yamamoto, Shinya, Zhang, Zhe, Zuchner, Stephan, Scala, Marcello, Tomati, Valeria, Ferla, Matteo, Lena, Mariateresa, Cohen, Julie S., Fatemi, Ali, Brokamp, Elly, Koziura, Mary E., Nicouleau, Michael, Rio, Marlene, Siquier, Karine, Boddaert, Nathalie, Musante, Ilaria, Tamburro, Serena, Baldassari, Simona, Iacomino, Michele, Scudieri, Paolo, Bellus, Gary, Reed, Sara, Al Saif, Hind, Russo, Rossana Sanchez, Walsh, Matthew B., Cantagrel, Vincent, Crunk, Amy, Gustincich, Stefano, Ruggiero, Sarah M., Fitzgerald, Mark P., Helbig, Ingo, Striano, Pasquale, Severino, Mariasavina, Salpietro, Vincenzo, Pedemonte, Nicoletta, and Zara, Federico

Published
2024
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17. Endocrine features of Prader-Willi syndrome: a narrative review focusing on genotype-phenotype correlation

Author

Simona F. Madeo, Luca Zagaroli, Sara Vandelli, Valeria Calcaterra, Antonino Crinò, Luisa De Sanctis, Maria Felicia Faienza, Danilo Fintini, Laura Guazzarotti, Maria Rosaria Licenziati, Enza Mozzillo, Roberta Pajno, Emanuela Scarano, Maria E. Street, Malgorzata Wasniewska, Sarah Bocchini, Carmen Bucolo, Raffaele Buganza, Mariangela Chiarito, Domenico Corica, Francesca Di Candia, Roberta Francavilla, Nadia Fratangeli, Nicola Improda, Letteria A. Morabito, Chiara Mozzato, Virginia Rossi, Concetta Schiavariello, Giovanni Farello, Lorenzo Iughetti, Vincenzo Salpietro, Alessandro Salvatoni, Mara Giordano, Graziano Grugni, and Maurizio Delvecchio

Subjects
Prader-Willi syndrome (PWS), genotype-phenotype correlation, growth hormone (GH), metabolic syndrome, hypogonadism, bone metabolism, Diseases of the endocrine glands. Clinical endocrinology, RC648-665
Abstract

Prader-Willi syndrome (PWS) is a complex genetic disorder caused by three different types of molecular genetic abnormalities. The most common defect is a deletion on the paternal 15q11-q13 chromosome, which is seen in about 60% of individuals. The next most common abnormality is maternal disomy 15, found in around 35% of cases, and a defect in the imprinting center that controls the activity of certain genes on chromosome 15, seen in 1-3% of cases. Individuals with PWS typically experience issues with the hypothalamic-pituitary axis, leading to excessive hunger (hyperphagia), severe obesity, various endocrine disorders, and intellectual disability. Differences in physical and behavioral characteristics between patients with PWS due to deletion versus those with maternal disomy are discussed in literature. Patients with maternal disomy tend to have more frequent neurodevelopmental problems, such as autistic traits and behavioral issues, and generally have higher IQ levels compared to those with deletion of the critical PWS region. This has led us to review the pertinent literature to investigate the possibility of establishing connections between the genetic abnormalities and the endocrine disorders experienced by PWS patients, in order to develop more targeted diagnostic and treatment protocols. In this review, we will review the current state of clinical studies focusing on endocrine disorders in individuals with PWS patients, with a specific focus on the various genetic causes. We will look at topics such as neonatal anthropometry, thyroid issues, adrenal problems, hypogonadism, bone metabolism abnormalities, metabolic syndrome resulting from severe obesity caused by hyperphagia, deficiencies in the GH/IGF-1 axis, and the corresponding responses to treatment.

Published
2024
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18. Human mutations in SLITRK3 implicated in GABAergic synapse development in mice

Author

Stephanie Efthymiou, Wenyan Han, Muhammad Ilyas, Jun Li, Yichao Yu, Marcello Scala, Nancy T. Malintan, Nikoleta Vavouraki, Kshitij Mankad, Reza Maroofian, Clarissa Rocca, Vincenzo Salpietro, Shenela Lakhani, Eric J. Mallack, Timothy Blake Palculict, Hong Li, Guojun Zhang, Faisal Zafar, Nuzhat Rana, Noriko Takashima, Hayato Matsunaga, Claudia Manzoni, Pasquale Striano, Mark F. Lythgoe, Jun Aruga, Wei Lu, and Henry Houlden

Subjects
SLITRK3, GABAergic synapse development, epilepsy, global developmental delay, inhibitory synaptic transmission, NGS - next generation sequencing, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract

This study reports on biallelic homozygous and monoallelic de novo variants in SLITRK3 in three unrelated families presenting with epileptic encephalopathy associated with a broad neurological involvement characterized by microcephaly, intellectual disability, seizures, and global developmental delay. SLITRK3 encodes for a transmembrane protein that is involved in controlling neurite outgrowth and inhibitory synapse development and that has an important role in brain function and neurological diseases. Using primary cultures of hippocampal neurons carrying patients’ SLITRK3 variants and in combination with electrophysiology, we demonstrate that recessive variants are loss-of-function alleles. Immunostaining experiments in HEK-293 cells showed that human variants C566R and E606X change SLITRK3 protein expression patterns on the cell surface, resulting in highly accumulating defective proteins in the Golgi apparatus. By analyzing the development and phenotype of SLITRK3 KO (SLITRK3–/–) mice, the study shows evidence of enhanced susceptibility to pentylenetetrazole-induced seizure with the appearance of spontaneous epileptiform EEG as well as developmental deficits such as higher motor activities and reduced parvalbumin interneurons. Taken together, the results exhibit impaired development of the peripheral and central nervous system and support a conserved role of this transmembrane protein in neurological function. The study delineates an emerging spectrum of human core synaptopathies caused by variants in genes that encode SLITRK proteins and essential regulatory components of the synaptic machinery. The hallmark of these disorders is impaired postsynaptic neurotransmission at nerve terminals; an impaired neurotransmission resulting in a wide array of (often overlapping) clinical features, including neurodevelopmental impairment, weakness, seizures, and abnormal movements. The genetic synaptopathy caused by SLITRK3 mutations highlights the key roles of this gene in human brain development and function.

Published
2024
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19. Corrigendum: Neuroimaging in PRUNE1 syndrome: a mini-review of the literature

Author

Giovanna Scorrano, Laura Battaglia, Rossana Spiaggia, Antonio Basile, Stefano Palmucci, Pietro Valerio Foti, Emanuele David, Franco Marinangeli, Ilaria Mascilini, Antonio Corsello, Francesco Comisi, Alessandro Vittori, and Vincenzo Salpietro

Subjects
PRUNE1, neurodevelopmental disorder, enzymatic activity, neurogenesis, delayed myelination, Neurology. Diseases of the nervous system, RC346-429
Published
2024
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20. Gain and loss of function variants in EZH1 disrupt neurogenesis and cause dominant and recessive neurodevelopmental disorders

Author

Gracia-Diaz, Carolina, Zhou, Yijing, Yang, Qian, Maroofian, Reza, Espana-Bonilla, Paula, Lee, Chul-Hwan, Zhang, Shuo, Padilla, Natàlia, Fueyo, Raquel, Waxman, Elisa A., Lei, Sunyimeng, Otrimski, Garrett, Li, Dong, Sheppard, Sarah E., Mark, Paul, Harr, Margaret H., Hakonarson, Hakon, Rodan, Lance, Jackson, Adam, Vasudevan, Pradeep, Powel, Corrina, Mohammed, Shehla, Maddirevula, Sateesh, Alzaidan, Hamad, Faqeih, Eissa A., Efthymiou, Stephanie, Turchetti, Valentina, Rahman, Fatima, Maqbool, Shazia, Salpietro, Vincenzo, Ibrahim, Shahnaz H., di Rosa, Gabriella, Houlden, Henry, Alharbi, Maha Nasser, Al-Sannaa, Nouriya Abbas, Bauer, Peter, Zifarelli, Giovanni, Estaras, Conchi, Hurst, Anna C. E., Thompson, Michelle L., Chassevent, Anna, Smith-Hicks, Constance L., de la Cruz, Xavier, Holtz, Alexander M., Elloumi, Houda Zghal, Hajianpour, M J, Rieubland, Claudine, Braun, Dominique, Banka, Siddharth, French, Deborah L., Heller, Elizabeth A., Saade, Murielle, Song, Hongjun, Ming, Guo-li, Alkuraya, Fowzan S., Agrawal, Pankaj B., Reinberg, Danny, Bhoj, Elizabeth J., Martínez-Balbás, Marian A., and Akizu, Naiara

Published
2023
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21. A PAK1 Mutational Hotspot Within the Regulatory CRIPaK Domain is Associated With Severe Neurodevelopmental Disorders in Children

Author

Scorrano, Giovanna, D'Onofrio, Gianluca, Accogli, Andrea, Severino, Mariasavina, Buchert, Rebecca, Kotzaeridou, Urania, Iapadre, Giulia, Farello, Giovanni, Iacomino, Michele, Dono, Fedele, Di Francesco, Ludovica, Fiorile, Maria Francesca, La Bella, Saverio, Corsello, Antonio, Calì, Elisa, Di Rosa, Gabriella, Gitto, Eloisa, Verrotti, Alberto, Fortuna, Sara, Soler, Miguel A., Chiarelli, Francesco, Oehl-Jaschkowitz, Barbara, Haack, Tobias B., Zara, Federico, Striano, Pasquale, and Salpietro, Vincenzo

Published
2023
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22. Elucidating the clinical and molecular spectrum of SMARCC2-associated NDD in a cohort of 65 affected individuals

Author

Bosch, Elisabeth, Popp, Bernt, Güse, Esther, Skinner, Cindy, van der Sluijs, Pleuntje J., Maystadt, Isabelle, Pinto, Anna Maria, Renieri, Alessandra, Bruno, Lucia Pia, Granata, Stefania, Marcelis, Carlo, Baysal, Özlem, Hartwich, Dewi, Holthöfer, Laura, Isidor, Bertrand, Cogne, Benjamin, Wieczorek, Dagmar, Capra, Valeria, Scala, Marcello, De Marco, Patrizia, Ognibene, Marzia, Jamra, Rami Abou, Platzer, Konrad, Carter, Lauren B., Kuismin, Outi, van Haeringen, Arie, Maroofian, Reza, Valenzuela, Irene, Cuscó, Ivon, Martinez-Agosto, Julian A., Rabani, Ahna M., Mefford, Heather C., Pereira, Elaine M., Close, Charlotte, Anyane-Yeboa, Kwame, Wagner, Mallory, Hannibal, Mark C., Zacher, Pia, Thiffault, Isabelle, Beunders, Gea, Umair, Muhammad, Bhola, Priya T., McGinnis, Erin, Millichap, John, van de Kamp, Jiddeke M., Prijoles, Eloise J., Dobson, Amy, Shillington, Amelle, Graham, Brett H., Garcia, Evan-Jacob, Galindo, Maureen Kelly, Ropers, Fabienne G., Nibbeling, Esther A.R., Hubbard, Gail, Karimov, Catherine, Goj, Guido, Bend, Renee, Rath, Julie, Morrow, Michelle M., Millan, Francisca, Salpietro, Vincenzo, Torella, Annalaura, Nigro, Vincenzo, Kurki, Mitja, Stevenson, Roger E., Santen, Gijs W.E., Zweier, Markus, Campeau, Philippe M., Severino, Mariasavina, Reis, André, Accogli, Andrea, and Vasileiou, Georgia

Published
2023
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23. Clinical, neuroradiological, and molecular characterization of mitochondrial threonyl-tRNA-synthetase (TARS2)-related disorder

Author

Accogli, Andrea, Lin, Sheng-Jia, Severino, Mariasavina, Kim, Sung-Hoon, Huang, Kevin, Rocca, Clarissa, Landsverk, Megan, Zaki, Maha S., Al-Maawali, Almundher, Srinivasan, Varunvenkat M., Al-Thihli, Khalid, Schaefer, G. Bradly, Davis, Monica, Tonduti, Davide, Doneda, Chiara, Marten, Lara M., Mühlhausen, Chris, Gomez, Maria, Lamantea, Eleonora, Mena, Rafael, Nizon, Mathilde, Procaccio, Vincent, Begtrup, Amber, Telegrafi, Aida, Cui, Hong, Schulz, Heidi L., Mohr, Julia, Biskup, Saskia, Loos, Mariana Amina, Aráoz, Hilda Verónica, Salpietro, Vincenzo, Keppen, Laura Davis, Chitre, Manali, Petree, Cassidy, Raymond, Lucy, Vogt, Julie, Sawyer, Lindsey B., Basinger, Alice A., Pedersen, Signe Vandal, Pearson, Toni S., Grange, Dorothy K., Lingappa, Lokesh, McDunnah, Paige, Horvath, Rita, Cognè, Benjamin, Isidor, Bertrand, Hahn, Andreas, Gripp, Karen W., Jafarnejad, Seyed Mehdi, Østergaard, Elsebet, Prada, Carlos E., Ghezzi, Daniele, Gowda, Vykuntaraju K., Taylor, Robert W., Sonenberg, Nahum, Houlden, Henry, Sissler, Marie, Varshney, Gaurav K., and Maroofian, Reza

Published
2023
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24. Loss of Neuron Navigator 2 Impairs Brain and Cerebellar Development

Author

Accogli, Andrea, Lu, Shenzhao, Musante, Ilaria, Scudieri, Paolo, Rosenfeld, Jill A., Severino, Mariasavina, Baldassari, Simona, Iacomino, Michele, Riva, Antonella, Balagura, Ganna, Piccolo, Gianluca, Minetti, Carlo, Roberto, Denis, Xia, Fan, Razak, Razaali, Lawrence, Emily, Hussein, Mohamed, Chang, Emmanuel Yih-Herng, Holick, Michelle, Calì, Elisa, Aliberto, Emanuela, De-Sarro, Rosalba, Gambardella, Antonio, Network, Undiagnosed Diseases, Group, SYNaPS Study, Emrick, Lisa, McCaffery, Peter J. A., Clagett-Dame, Margaret, Marcogliese, Paul C., Bellen, Hugo J., Lalani, Seema R., Zara, Federico, Striano, Pasquale, and Salpietro, Vincenzo

Published
2023
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26. Neuroimaging features of WOREE syndrome: a mini-review of the literature

Author

Laura Battaglia, Giovanna Scorrano, Rossana Spiaggia, Antonio Basile, Stefano Palmucci, Pietro Valerio Foti, Corrado Spatola, Michele Iacomino, Franco Marinangeli, Elisa Francia, Francesco Comisi, Antonio Corsello, Vincenzo Salpietro, Alessandro Vittori, and Emanuele David

Subjects
WWOX, developmental and epileptic encephalopathies (DEEs), WOREE syndrome, SDR domain, brain anomalies, Pediatrics, RJ1-570
Abstract

The WWOX gene encodes a 414-amino-acid protein composed of two N-terminal WW domains and a C-terminal short-chain dehydrogenase/reductase (SDR) domain. WWOX protein is highly conserved among species and mainly expressed in the cerebellum, cerebral cortex, brain stem, thyroid, hypophysis, and reproductive organs. It plays a crucial role in the biology of the central nervous system, and it is involved in neuronal development, migration, and proliferation. Biallelic pathogenic variants in WWOX have been associated with an early infantile epileptic encephalopathy known as WOREE syndrome. Both missense and null variants have been described in affected patients, leading to a reduction in protein function and stability. The most severe WOREE phenotypes have been related to biallelic null/null variants, associated with the complete loss of function of the protein. All affected patients showed brain anomalies on magnetic resonance imaging (MRI), suggesting the pivotal role of WWOX protein in brain homeostasis and developmental processes. We provided a literature review, exploring both the clinical and radiological spectrum related to WWOX pathogenic variants, described to date. We focused on neuroradiological findings to better delineate the WOREE phenotype with diagnostic and prognostic implications.

Published
2023
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27. Neuroimaging in PRUNE1 syndrome: a mini-review of the literature

Author

Giovanna Scorrano, Laura Battaglia, Rossana Spiaggia, Antonio Basile, Stefano Palmucci, Pietro Valerio Foti, Emanuele David, Franco Marinangeli, Ilaria Mascilini, Antonio Corsello, Francesco Comisi, Alessandro Vittori, and Vincenzo Salpietro

Subjects
PRUNE1, neurodevelopmental disorder, enzymatic activity, neurogenesis, delayed myelination, Neurology. Diseases of the nervous system, RC346-429
Abstract

Prune exopolyphosphatase 1 (PRUNE1) is a short-chain phosphatase that is part of the aspartic acid-histidine-histidine (DHH) family of proteins. PRUNE1 is highly expressed in the central nervous system and is crucially involved in neurodevelopment, cytoskeletal rearrangement, cell migration, and proliferation. Recently, biallelic PRUNE1 variants have been identified in patients with neurodevelopmental disorders, hypotonia, microcephaly, variable cerebral anomalies, and other features. PRUNE1 hypomorphic mutations mainly affect the DHH1 domain, leading to an impactful decrease in enzymatic activity with a loss-of-function mechanism. In this review, we explored both the clinical and radiological spectrum related to PRUNE1 pathogenic variants described to date. Specifically, we focused on neuroradiological findings that, together with clinical phenotypes and genetic data, allow us to best characterize affected children with diagnostic and potential prognostic implications.

Published
2023
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28. Trends in chronic hepatitis B virus infection in Italy over a 10-year period: Clues from the nationwide PITER and MASTER cohorts toward elimination

Author

Giuseppina Brancaccio, Barbara Coco, Alessandra Nardi, Maria Giovanna Quaranta, Maria Elena Tosti, Luigina Ferrigno, Irene Cacciola, Vincenzo Messina, Luchino Chessa, Filomena Morisco, Michele Milella, Francesco Barbaro, Alessia Ciancio, Francesco Paolo Russo, Nicola Coppola, Pierluigi Blanc, Ernesto Claar, Gabriella Verucchi, Massimo Puoti, Anna Linda Zignego, Liliana Chemello, Salvatore Madonia, Stefano Fagiuoli, Alfredo Marzano, Carlo Ferrari, Pietro Lampertico, Vito Di Marco, Antonio Craxì, Teresa Antonia Santantonio, Giovanni Raimondo, Maurizia R. Brunetto, Giovanni Battista Gaeta, Loreta A. Kondili, Luisa Pasulo, Carmine Coppola, Federica Pisano, Mariarosaria Romano, Carmen Porcu, Irene Francesca Bottalico, Valentina Cossiga, Xhimi Tata, Caterina Sagnelli, Piera Pierotti, Elisabetta Degasperi, Valerio Rosato, Lorenzo Badia, Dontella Ieluzzi, Monica Monti, Maria Grazia Bavetta, Luisa Cavalletto, Pierluigi Toniutto, Ezio Fornasiere, Antonio Colecchia, Alberto Ferrarese, Gerardo Nardone, Alba Rocco, Mauro Viganò, Francesco Giuseppe Foschi, Fabio Conti, Giulia Morsica, Stefania Salpietro, Carlo Torti, Chiara Costa, Alessandro Federico, Marcello Dallio, Alessia Giorgini, Marco Anselmo, Pasqualina De Leo, Serena Zaltron, Anna Cambianica, Fabio Piscaglia, Ilaria Serio, Simona Schivazappa, Antonio Mastroianni, Luciana Chidichimo, Marco Massari, Cesare Mazzaro, Aldo Marrone, Francesca Maria D'Amore, Gianpiero D'Offizi, Anna Licata, Grazia Anna Niro, Teresa Pollicino, and Alessio Aghemo

Subjects
Hepatitis B, Chronic, Hepatitis Delta, Epidemiology, Migrants, Hepatitis control, Infectious and parasitic diseases, RC109-216
Abstract

Objectives: The study measures trends in the profile of patients with chronic hepatitis B virus linked to care in Italy. Methods: A cross-sectional, multicenter, observational cohort (PITER cohort) of consecutive patients with hepatitis B surface antigen (HBsAg) over the period 2019-2021 from 46 centers was evaluated. The reference was the MASTER cohort collected over the years 2012-2015. Standard statistical methods were used. Results: The PITER cohort enrolled 4583 patients, of whom 21.8% were non-Italian natives. Compared with those in MASTER, the patients were older and more often female. The prevalence of hepatitis B e antigen (HBeAg) declined (7.2% vs 12.3; P

Published
2023
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30. Modelling the impact of protein-kinase R allelic variant on HIV biomarkers trajectories by means of latent class mixed models

Author

Chiara Brombin, Sabrina Bagaglio, Federica Cugnata, Antonella Castagna, Caterina Uberti-Foppa, Stefania Salpietro, Clelia Di Serio, and Giulia Morsica

Subjects
Medicine, Science
Abstract

Abstract This paper is based on a retrospective longitudinal study on people living with HIV under antiretroviral treatment (ART) where allelic variants (either heterozygous CT genotype or homozygous CC genotype) have been evaluated at position −168 of the promoter region of the protein kinase R (−168/PKR). In general, antiviral effects of interferon are partially mediated by a RNA-dependent protein kinase (PKR) that, once activated, inhibits protein synthesis. Indeed, activation of PKR response can inhibit HIV replication. To explore the role of allelic variants in shaping dynamics of commonly monitored HIV biomarkers, CD4 cells, CD8 cells and HIV-load were modelled within a latent class mixed model (LCMM) to account for participants’ heterogeneity over time. The estimated models identified two sub-groups from CD4 and HIV-load dynamics, revealing better outcomes for subgroups of participants with the heterozygous CT genotype. Heterozygous CT subjects in one of the two identified subgroups exhibited higher increase of CD4 cells and more marked decrease of HIV-load, over time, with respect to the homozygous CC subjects assigned to the same group.

Published
2022
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32. De novo missense variants in the E3 ubiquitin ligase adaptor KLHL20 cause a developmental disorder with intellectual disability, epilepsy, and autism spectrum disorder

Author

Sleyp, Yoeri, Valenzuela, Irene, Accogli, Andrea, Ballon, Katleen, Ben-Zeev, Bruria, Berkovic, Samuel F., Broly, Martin, Callaerts, Patrick, Caylor, Raymond C., Charles, Perrine, Chatron, Nicolas, Cohen, Lior, Coppola, Antonietta, Cordeiro, Dawn, Cuccurullo, Claudia, Cuscó, Ivon, Janette diMonda, Duran-Romaña, Ramon, Ekhilevitch, Nina, Fernández-Alvarez, Paula, Gordon, Christopher T., Isidor, Bertrand, Keren, Boris, Lesca, Gaetan, Maljaars, Jarymke, Mercimek-Andrews, Saadet, Morrow, Michelle M., Muir, Alison M., Rousseau, Frederic, Salpietro, Vincenzo, Scheffer, Ingrid E., Schnur, Rhonda E., Schymkowitz, Joost, Souche, Erika, Steyaert, Jean, Stolerman, Elliot S., Vengoechea, Jaime, Ville, Dorothée, Washington, Camerun, Weiss, Karin, Zaid, Rinat, Sadleir, Lynette G., Mefford, Heather C., and Peeters, Hilde

Published
2022
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33. Hydranencephaly in CENPJ-related Seckel syndrome

Author

Cuccurullo, Claudia, Miele, Giuseppina, Piccolo, Gianluca, Bilo, Leonilda, Accogli, Andrea, D'Amico, Alessandra, Fratta, Mario, Guerrisi, Sara, Iacomino, Michele, Salpietro, Vincenzo, Ugga, Lorenzo, Striano, Pasquale, and Coppola, Antonietta

Published
2022
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35. Brain and eye involvement in McCune-Albright Syndrome: clinical and translational insights

Author

Ilaria Mascioli, Giulia Iapadre, Diletta Ingrosso, Giulio Di Donato, Cosimo Giannini, Vincenzo Salpietro, Francesco Chiarelli, and Giovanni Farello

Subjects
McCune-Albright Syndrome, fibrous dysplasia of bone, brain, eye, GNAS, Diseases of the endocrine glands. Clinical endocrinology, RC648-665
Abstract

McCune-Albright Syndrome (MAS) is a rare mosaic (post-zygotic) genetic disorder presenting with a broad continuum clinical spectrum. MAS arises from somatic, activating mutations in the GNAS gene, which induces a dysregulated Gsα-protein signaling in several tissues and an increased production of intracellular cyclic adenosine monophosphate (cAMP). Overall, MAS is a rare disorder affecting less than 1/100,000 children and, for this reason, data establishing genotype-phenotype correlations remain limited. Affected individuals clinically present with a variable combination of fibrous dysplasia of bone (FD), extra-skeletal manifestations (including cafeí-au-lait spots) and precocious puberty which might also be associated to broad hyperfunctioning endocrinopathies, and also gastrointestinal and cardiological involvement. Central nervous system (CNS) and eye involvement in MAS are among the less frequently described complications and remain largely uncharacterized. These rare complications mainly include neurodevelopmental abnormalities (e.g., delayed motor development, cognitive and language impairment), CNS anomalies (e.g., Chiari malformation type I) and a wide array of ophthalmological abnormalities often associated with vision loss. The pathophysiological mechanisms underlying abnormal neurological development have not been yet fully elucidated. The proposed mechanisms include a deleterious impact of chronically dysregulated Gsα-protein signaling on neurological function, or a secondary (damaging) effect of (antenatal and/or early postnatal) hypercortisolism on early pre- and post-natal CNS development. In this Review, we summarize the main neurological and ophthalmological features eventually associated with the MAS spectrum, also providing a detailed overview of the potential pathophysiological mechanisms underlying these clinical complications.

Published
2023
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36. ADGRL1 haploinsufficiency causes a variable spectrum of neurodevelopmental disorders in humans and alters synaptic activity and behavior in a mouse model

Author

Vitobello, Antonio, Mazel, Benoit, Lelianova, Vera G., Zangrandi, Alice, Petitto, Evelina, Suckling, Jason, Salpietro, Vincenzo, Meyer, Robert, Elbracht, Miriam, Kurth, Ingo, Eggermann, Thomas, Benlaouer, Ouafa, Lall, Gurprit, Tonevitsky, Alexander G., Scott, Daryl A., Chan, Katie M., Rosenfeld, Jill A., Nambot, Sophie, Safraou, Hana, Bruel, Ange-Line, Denommé-Pichon, Anne-Sophie, Tran Mau-Them, Frédéric, Philippe, Christophe, Duffourd, Yannis, Guo, Hui, Petersen, Andrea K., Granger, Leslie, Crunk, Amy, Bayat, Allan, Striano, Pasquale, Zara, Federico, Scala, Marcello, Thomas, Quentin, Delahaye, Andrée, de Sainte Agathe, Jean-Madeleine, Buratti, Julien, Kozlov, Serguei V., Faivre, Laurence, Thauvin-Robinet, Christel, and Ushkaryov, Yuri

Published
2022
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37. Genotype–phenotype correlations and disease mechanisms in PEX13-related Zellweger spectrum disorders

Author

Paola Borgia, Simona Baldassari, Nicoletta Pedemonte, Ebba Alkhunaizi, Gianluca D’Onofrio, Domenico Tortora, Elisa Calì, Paolo Scudieri, Ganna Balagura, Ilaria Musante, Maria Cristina Diana, Marina Pedemonte, Maria Stella Vari, Michele Iacomino, Antonella Riva, Roberto Chimenz, Giuseppe D. Mangano, Mohammad Hasan Mohammadi, Mehran Beiraghi Toosi, Farah Ashrafzadeh, Shima Imannezhad, Ehsan Ghayoor Karimiani, Andrea Accogli, Maria Cristina Schiaffino, Mohamad Maghnie, Miguel Angel Soler, Karl Echiverri, Charles K. Abrams, Pasquale Striano, Sara Fortuna, Reza Maroofian, Henry Houlden, Federico Zara, Chiara Fiorillo, and Vincenzo Salpietro

Subjects
Peroxisome biogenesis disorders, Zellweger spectrum disorder, PEX13, mitochondrial dysfunction, Medicine
Abstract

Abstract Background Pathogenic variants in PEX-genes can affect peroxisome assembly and function and cause Zellweger spectrum disorders (ZSDs), characterized by variable phenotypes in terms of disease severity, age of onset and clinical presentations. So far, defects in at least 15 PEX-genes have been implicated in Mendelian diseases, but in some of the ultra-rare ZSD subtypes genotype–phenotype correlations and disease mechanisms remain elusive. Methods We report five families carrying biallelic variants in PEX13. The identified variants were initially evaluated by using a combination of computational approaches. Immunofluorescence and complementation studies on patient-derived fibroblasts were performed in two patients to investigate the cellular impact of the identified mutations. Results Three out of five families carried a recurrent p.Arg294Trp non-synonymous variant. Individuals affected with PEX13-related ZSD presented heterogeneous clinical features, including hypotonia, developmental regression, hearing/vision impairment, progressive spasticity and brain leukodystrophy. Computational predictions highlighted the involvement of the Arg294 residue in PEX13 homodimerization, and the analysis of blind docking predicted that the p.Arg294Trp variant alters the formation of dimers, impairing the stability of the PEX13/PEX14 translocation module. Studies on muscle tissues and patient-derived fibroblasts revealed biochemical alterations of mitochondrial function and identified mislocalized mitochondria and a reduced number of peroxisomes with abnormal PEX13 concentration. Conclusions This study expands the phenotypic and mutational spectrum of PEX13-related ZSDs and also highlight a variety of disease mechanisms contributing to PEX13-related clinical phenotypes, including the emerging contribution of secondary mitochondrial dysfunction to the pathophysiology of ZSDs.

Published
2022
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40. Commonalities and distinctions between two neurodevelopmental disorder subtypes associated with SCN2A and SCN8A variants and literature review

Author

Giuseppe Donato Mangano, Antonina Fontana, Vincenzo Antona, Vincenzo Salpietro, Giuseppa Renata Mangano, Mario Giuffrè, and Rosaria Nardello

Subjects
autism spectrum disorders, EEG, epilepsy, intellectual disability, SCN2A, SCN8A, Genetics, QH426-470
Abstract

Abstract This study was aimed to analyze the commonalities and distinctions of voltage‐gated sodium channels, Nav1.2, Nav1.6, in neurodevelopmental disorders. An observational study was performed including two patients with neurodevelopmental disorders. The demographic, electroclinical, genetic, and neuropsychological characteristics were analyzed and compared with each other and then with the subjects carrying the same genetic variants reported in the literature. The clinical features of one of them argued for autism spectrum disorder and developmental delay, the other for intellectual disability, diagnoses confirmed by the neuropsychological assessment. The first patient was a carrier of SCN2A (p.R379H) variant while the second was carrier of SCN8A (p.E936K) variant, both involving the pore loop of the two channels. The results of this study suggest that the neurodevelopmental disorders without overt epilepsy of both patients can be the consequences of loss of function of Nav1.2/Nav1.6 channels. Notably, the SCN2A variant, with an earlier expression timing in brain development, resulted in a more severe phenotype as autism spectrum disorder and developmental delay, while the SCN8A variant, with a later expression timing, resulted in a less severe phenotype as intellectual disability.

Published
2022
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41. Endocrine features of Prader-Willi syndrome: a narrative review focusing on genotype-phenotype correlation

Author

Madeo, Simona F., primary, Zagaroli, Luca, additional, Vandelli, Sara, additional, Calcaterra, Valeria, additional, Crinò, Antonino, additional, De Sanctis, Luisa, additional, Faienza, Maria Felicia, additional, Fintini, Danilo, additional, Guazzarotti, Laura, additional, Licenziati, Maria Rosaria, additional, Mozzillo, Enza, additional, Pajno, Roberta, additional, Scarano, Emanuela, additional, Street, Maria E., additional, Wasniewska, Malgorzata, additional, Bocchini, Sarah, additional, Bucolo, Carmen, additional, Buganza, Raffaele, additional, Chiarito, Mariangela, additional, Corica, Domenico, additional, Di Candia, Francesca, additional, Francavilla, Roberta, additional, Fratangeli, Nadia, additional, Improda, Nicola, additional, Morabito, Letteria A., additional, Mozzato, Chiara, additional, Rossi, Virginia, additional, Schiavariello, Concetta, additional, Farello, Giovanni, additional, Iughetti, Lorenzo, additional, Salpietro, Vincenzo, additional, Salvatoni, Alessandro, additional, Giordano, Mara, additional, Grugni, Graziano, additional, and Delvecchio, Maurizio, additional

Published
2024
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42. De novo variants in DENND5B cause a neurodevelopmental disorder

Author

Scala, Marcello, primary, Tomati, Valeria, additional, Ferla, Matteo, additional, Lena, Mariateresa, additional, Cohen, Julie S., additional, Fatemi, Ali, additional, Brokamp, Elly, additional, Bican, Anna, additional, Phillips, John A., additional, Koziura, Mary E., additional, Nicouleau, Michael, additional, Rio, Marlene, additional, Siquier, Karine, additional, Boddaert, Nathalie, additional, Musante, Ilaria, additional, Tamburro, Serena, additional, Baldassari, Simona, additional, Iacomino, Michele, additional, Scudieri, Paolo, additional, Rosenfeld, Jill A., additional, Bellus, Gary, additional, Reed, Sara, additional, Al Saif, Hind, additional, Russo, Rossana Sanchez, additional, Walsh, Matthew B., additional, Cantagrel, Vincent, additional, Crunk, Amy, additional, Gustincich, Stefano, additional, Ruggiero, Sarah M., additional, Fitzgerald, Mark P., additional, Helbig, Ingo, additional, Striano, Pasquale, additional, Severino, Mariasavina, additional, Salpietro, Vincenzo, additional, Pedemonte, Nicoletta, additional, Zara, Federico, additional, Acosta, Maria T., additional, Adams, David R., additional, Alvarez, Raquel L., additional, Alvey, Justin, additional, Allworth, Aimee, additional, Andrews, Ashley, additional, Ashley, Euan A., additional, Afzali, Ben, additional, Bacino, Carlos A., additional, Bademci, Guney, additional, Balasubramanyam, Ashok, additional, Baldridge, Dustin, additional, Bale, Jim, additional, Bamshad, Michael, additional, Barbouth, Deborah, additional, Bayrak-Toydemir, Pinar, additional, Beck, Anita, additional, Beggs, Alan H., additional, Behrens, Edward, additional, Bejerano, Gill, additional, Bellen, Hugo J., additional, Bennett, Jimmy, additional, Bernstein, Jonathan A., additional, Berry, Gerard T., additional, Bivona, Stephanie, additional, Blue, Elizabeth, additional, Bohnsack, John, additional, Bonner, Devon, additional, Botto, Lorenzo, additional, Briere, Lauren C., additional, Brown, Gabrielle, additional, Burke, Elizabeth A., additional, Burrage, Lindsay C., additional, Butte, Manish J., additional, Byers, Peter, additional, Byrd, William E., additional, Carey, John, additional, Carrasquillo, Olveen, additional, Cassini, Thomas, additional, Chang, Ta Chen Peter, additional, Chanprasert, Sirisak, additional, Chao, HsiaoTuan, additional, Chinn, Ivan, additional, Clark, Gary D., additional, Coakley, Terra R., additional, Cobban, Laurel A., additional, Cogan, Joy D., additional, Coggins, Matthew, additional, Cole, F. Sessions, additional, Colley, Heather A., additional, Cope, Heidi, additional, Corona, Rosario, additional, Craigen, William J., additional, Crouse, Andrew B., additional, Cunningham, Michael, additional, D’Souza, Precilla, additional, Dai, Hongzheng, additional, Dasari, Surendra, additional, Davis, Joie, additional, Dayal, Jyoti G., additional, Delgado, Margaret, additional, Dell'Angelica, Esteban C., additional, Dipple, Katrina, additional, Doherty, Daniel, additional, Dorrani, Naghmeh, additional, Doss, Argenia L., additional, Douine, Emilie D., additional, Earl, Dawn, additional, Eckstein, David J., additional, Emrick, Lisa T., additional, Eng, Christine M., additional, Falk, Marni, additional, Fieg, Elizabeth L., additional, Fisher, Paul G., additional, Fogel, Brent L., additional, Forghani, Irman, additional, Fu, Jiayu, additional, Gahl, William A., additional, Glass, Ian, additional, Goddard, Page C., additional, Godfrey, Rena A., additional, Grajewski, Alana, additional, Gropman, Andrea, additional, Halley, Meghan C., additional, Hamid, Rizwan, additional, Hanchard, Neal, additional, Hassey, Kelly, additional, Hayes, Nichole, additional, High, Frances, additional, Hing, Anne, additional, Hisama, Fuki M., additional, Holm, Ingrid A., additional, Hom, Jason, additional, Horike-Pyne, Martha, additional, Huang, Alden, additional, Huang, Yan, additional, Hutchison, Sarah, additional, Introne, Wendy, additional, Isasi, Rosario, additional, Izumi, Kosuke, additional, Jarvik, Gail P., additional, Jarvik, Jeffrey, additional, Jayadev, Suman, additional, Jean-Marie, Orpa, additional, Jobanputra, Vaidehi, additional, Kaitryn, Emerald, additional, Ketkar, Shamika, additional, Kiley, Dana, additional, Kilich, Gonench, additional, Kobren, Shilpa N., additional, Kohane, Isaac S., additional, Kohler, Jennefer N., additional, Korrick, Susan, additional, Krakow, Deborah, additional, Krasnewich, Donna M., additional, Kravets, Elijah, additional, Lalani, Seema R., additional, Lam, Byron, additional, Lam, Christina, additional, Lanpher, Brendan C., additional, Lanza, Ian R., additional, LeBlanc, Kimberly, additional, Lee, Brendan H., additional, Levitt, Roy, additional, Lewis, Richard A., additional, Liu, Pengfei, additional, Liu, Xue Zhong, additional, Longo, Nicola, additional, Loo, Sandra K., additional, Loscalzo, Joseph, additional, Maas, Richard L., additional, Macnamara, Ellen F., additional, MacRae, Calum A., additional, Maduro, Valerie V., additional, Maghiro, AudreyStephannie, additional, Mahoney, Rachel, additional, Malicdan, May Christine V., additional, Mamounas, Laura A., additional, Manolio, Teri A., additional, Mao, Rong, additional, Marom, Ronit, additional, Marth, Gabor, additional, Martin, Beth A., additional, Martin, Martin G., additional, Martínez-Agosto, Julian A., additional, Marwaha, Shruti, additional, McCauley, Jacob, additional, McConkie-Rosell, Allyn, additional, McCray, Alexa T., additional, McGee, Elisabeth, additional, Might, Matthew, additional, Miller, Danny, additional, Mirzaa, Ghayda, additional, Morava, Eva, additional, Moretti, Paolo, additional, Morimoto, Marie, additional, Mulvihill, John J., additional, Nakano-Okuno, Mariko, additional, Nelson, Stanley F., additional, Nieves-Rodriguez, Shirley, additional, Novacic, Donna, additional, Oglesbee, Devin, additional, Orengo, James P., additional, Pace, Laura, additional, Pak, Stephen, additional, Pallais, J. Carl, additional, Papp, Jeanette C., additional, Parker, Neil H., additional, Petcharet, Leoyklang, additional, Posey, Jennifer E., additional, Potocki, Lorraine, additional, Swerdzewski, Barbara N. Pusey, additional, Quinlan, Aaron, additional, Rao, Deepak A., additional, Raper, Anna, additional, Raskind, Wendy, additional, Renteria, Genecee, additional, Reuter, Chloe M., additional, Rives, Lynette, additional, Robertson, Amy K., additional, Rodan, Lance H., additional, Rosenthal, Elizabeth, additional, Rossignol, Francis, additional, Ruzhnikov, Maura, additional, Sabaii, Marla, additional, Sacco, Ralph, additional, Sampson, Jacinda B., additional, Saporta, Mario, additional, Schaechter, Judy, additional, Schedl, Timothy, additional, Schoch, Kelly, additional, Scott, Daryl A., additional, Seto, Elaine, additional, Sharma, Prashant, additional, Shashi, Vandana, additional, Shelkowitz, Emily, additional, Sheppeard, Sam, additional, Shin, Jimann, additional, Silverman, Edwin K., additional, Sinsheimer, Janet S., additional, Sisco, Kathy, additional, Smith, Edward C., additional, Smith, Kevin S., additional, Solnica-Krezel, Lilianna, additional, Solomon, Ben, additional, Spillmann, Rebecca C., additional, Stergachis, Andrew, additional, Stoler, Joan M., additional, Sullivan, Kathleen, additional, Sullivan, Jennifer A., additional, Sutton, Shirley, additional, Sweetser, David A., additional, Sybert, Virginia, additional, Tabor, Holly K., additional, Tan, Queenie K.-G., additional, Tan, Amelia L.M., additional, Tarakad, Arjun, additional, Taylor, Herman, additional, Tekin, Mustafa, additional, Telischi, Fred, additional, Thorson, Willa, additional, Tifft, Cynthia J., additional, Toro, Camilo, additional, Tran, Alyssa A., additional, Ungar, Rachel A., additional, Urv, Tiina K., additional, Vanderver, Adeline, additional, Velinder, Matt, additional, Viskochil, Dave, additional, Vogel, Tiphanie P., additional, Wahl, Colleen E., additional, Walker, Melissa, additional, Walley, Nicole M., additional, Wambach, Jennifer, additional, Wan, Jijun, additional, Wang, Lee-kai, additional, Wangler, Michael F., additional, Ward, Patricia A., additional, Wegner, Daniel, additional, Weisz Hubshman, Monika, additional, Wener, Mark, additional, Wenger, Tara, additional, Westerfield, Monte, additional, Wheeler, Matthew T., additional, Whitlock, Jordan, additional, Wolfe, Lynne A., additional, Worley, Kim, additional, Yamamoto, Shinya, additional, Zhang, Zhe, additional, and Zuchner, Stephan, additional

Published
2024
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43. Human mutations in SLITRK3 implicated in GABAergic synapse development in mice

Author

Efthymiou, Stephanie, primary, Han, Wenyan, additional, Ilyas, Muhammad, additional, Li, Jun, additional, Yu, Yichao, additional, Scala, Marcello, additional, Malintan, Nancy T., additional, Vavouraki, Nikoleta, additional, Mankad, Kshitij, additional, Maroofian, Reza, additional, Rocca, Clarissa, additional, Salpietro, Vincenzo, additional, Lakhani, Shenela, additional, Mallack, Eric J., additional, Palculict, Timothy Blake, additional, Li, Hong, additional, Zhang, Guojun, additional, Zafar, Faisal, additional, Rana, Nuzhat, additional, Takashima, Noriko, additional, Matsunaga, Hayato, additional, Manzoni, Claudia, additional, Striano, Pasquale, additional, Lythgoe, Mark F., additional, Aruga, Jun, additional, Lu, Wei, additional, and Houlden, Henry, additional

Published
2024
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44. De novo variants in FRYL are associated with developmental delay, intellectual disability, and dysmorphic features

Author

Pan, Xueyang, primary, Tao, Alice M., additional, Lu, Shenzhao, additional, Ma, Mengqi, additional, Hannan, Shabab B., additional, Slaugh, Rachel, additional, Drewes Williams, Sarah, additional, O'Grady, Lauren, additional, Kanca, Oguz, additional, Person, Richard, additional, Carter, Melissa T., additional, Platzer, Konrad, additional, Schnabel, Franziska, additional, Abou Jamra, Rami, additional, Roberts, Amy E., additional, Newburger, Jane W., additional, Revah-Politi, Anya, additional, Granadillo, Jorge L., additional, Stegmann, Alexander P.A., additional, Sinnema, Margje, additional, Accogli, Andrea, additional, Salpietro, Vincenzo, additional, Capra, Valeria, additional, Ghaloul-Gonzalez, Lina, additional, Brueckner, Martina, additional, Simon, Marleen E.H., additional, Sweetser, David A., additional, Glinton, Kevin E., additional, Kirk, Susan E., additional, Wangler, Michael F., additional, Yamamoto, Shinya, additional, Chung, Wendy K., additional, Bellen, Hugo J., additional, Burrage, Lindsay C., additional, Heaney, Jason D., additional, Kim, Seon-Young, additional, Lanza, Denise G., additional, Liu, Zhandong, additional, Mao, Dongxue, additional, Milosavljevic, Aleksander, additional, Nagamani, Sandesh C.S., additional, Posey, Jennifer E., additional, Ramamurthy, Uma, additional, Ramanathan, Vivek, additional, Rogers, Jeffrey, additional, Rosenfeld, Jill A., additional, Roth, Matthew, additional, and Zahedi Darshoori, Ramin, additional

Published
2024
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45. Corrigendum: Neuroimaging in PRUNE1 syndrome: a mini-review of the literature

Author

Scorrano, Giovanna, primary, Battaglia, Laura, additional, Spiaggia, Rossana, additional, Basile, Antonio, additional, Palmucci, Stefano, additional, Foti, Pietro Valerio, additional, David, Emanuele, additional, Marinangeli, Franco, additional, Mascilini, Ilaria, additional, Corsello, Antonio, additional, Comisi, Francesco, additional, Vittori, Alessandro, additional, and Salpietro, Vincenzo, additional

Published
2024
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46. A Phenotypic-Driven Approach for the Diagnosis of WOREE Syndrome

Author

Antonella Riva, Giulia Nobile, Thea Giacomini, Marzia Ognibene, Marcello Scala, Ganna Balagura, Francesca Madia, Andrea Accogli, Ferruccio Romano, Domenico Tortora, Mariasavina Severino, Paolo Scudieri, Simona Baldassari, Ilaria Musante, Paolo Uva, Vincenzo Salpietro, Annalaura Torella, Vincenzo Nigro, Valeria Capra, Lino Nobili, Pasquale Striano, Maria Margherita Mancardi, Federico Zara, and Michele Iacomino

Subjects
epilepsy, Exome sequencing (ES), WOREE syndrome, array-CGH analysis, WWOX gene, Pediatrics, RJ1-570
Abstract

BackgroundWOREE syndrome is a rare neurodevelopmental disorder featuring drug-resistant epilepsy and global developmental delay. The disease, caused by biallelic pathogenic variants in the WWOX gene, usually leads to severe disability or death within the first years of life. Clinicians have become more confident with the phenotypic picture of WOREE syndrome, allowing earlier clinical diagnosis. We report a boy with a peculiar clinic-radiological pattern supporting the diagnosis of WOREE syndrome.MethodsDNA was extracted from blood samples of the proband and his parents and subjected to Exome Sequencing (ES). Agarose gel electrophoresis, real-time quantitative PCR (Q-PCR), and array-CGH 180K were also performed.ResultsES detected a pathogenic stop variant (c.790C > T, p.Arg264*) in one allele of WWOX in the proband and his unaffected mother. A 180K array-CGH analysis revealed a 84,828-bp (g.chr16:78,360,803–78,445,630) deletion encompassing exon 6. The Q-PCR product showed that the proband and his father harbored the same deleted fragment, fusing exons 5 and 7 of WWOX.ConclusionsGenetic testing remains crucial in establishing the definitive diagnosis of WOREE syndrome and allows prenatal interventions/parental counseling. However, our findings suggest that targeted Next Generation Sequencing-based testing may occasionally show technical pitfalls, prompting further genetic investigation in selected cases with high clinical suspicion.

Published
2022
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47. Synaptopathies in Developmental and Epileptic Encephalopathies: A Focus on Pre-synaptic Dysfunction

Author

Giulia Spoto, Giulia Valentini, Maria Concetta Saia, Ambra Butera, Greta Amore, Vincenzo Salpietro, Antonio Gennaro Nicotera, and Gabriella Di Rosa

Subjects
synaptopathy, developmental and epileptic encephalopathy (DEE), pre-synaptic mechanisms, drug resistant epilepsy, intellectual disability (ID), SNAREopathies, Neurology. Diseases of the nervous system, RC346-429
Abstract

The proper connection between the pre- and post-synaptic nervous cells depends on any element constituting the synapse: the pre- and post-synaptic membranes, the synaptic cleft, and the surrounding glial cells and extracellular matrix. An alteration of the mechanisms regulating the physiological synergy among these synaptic components is defined as “synaptopathy.” Mutations in the genes encoding for proteins involved in neuronal transmission are associated with several neuropsychiatric disorders, but only some of them are associated with Developmental and Epileptic Encephalopathies (DEEs). These conditions include a heterogeneous group of epilepsy syndromes associated with cognitive disturbances/intellectual disability, autistic features, and movement disorders. This review aims to elucidate the pathogenesis of these conditions, focusing on mechanisms affecting the neuronal pre-synaptic terminal and its role in the onset of DEEs, including potential therapeutic approaches.

Published
2022
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48. KCNQ2-Related Neonatal Epilepsy Treated With Vitamin B6: A Report of Two Cases and Literature Review

Author

Greta Amore, Ambra Butera, Giulia Spoto, Giulia Valentini, Maria Concetta Saia, Vincenzo Salpietro, Francesco Calì, Gabriella Di Rosa, and Antonio Gennaro Nicotera

Subjects
KCNQ2, neonatal epilepsy, vitamin B6, pyridoxine, pyridoxal 5 phosphate, pyridoxine-dependent epilepsy (PDE), Neurology. Diseases of the nervous system, RC346-429
Abstract

Potassium Voltage-Gated Channel Subfamily Q Member 2 (KCNQ2) gene has been initially associated with “Benign familial neonatal epilepsy” (BFNE). Amounting evidence arising by next-generation sequencing techniques have led to the definition of new phenotypes, such as neonatal epileptic encephalopathy (NEE), expanding the spectrum of KCNQ2-related epilepsies. Pyridoxine (PN) dependent epilepsies (PDE) are a heterogeneous group of autosomal recessive disorders associated with neonatal-onset seizures responsive to treatment with vitamin B6 (VitB6). Few cases of neonatal seizures due to KCNQ2 pathogenic variants have been reported as successfully responding to VitB6. We reported two cases of KCNQ2-related neonatal epilepsies involving a 5-year-old male with a paternally inherited heterozygous mutation (c.1639C>T; p.Arg547Trp), and a 10-year-old female with a de novo heterozygous mutation (c.740C>T; p.Ser247Leu). Both children benefited from VitB6 treatment. Although the mechanisms explaining the efficacy of VitB6 in such patients remain unclear, this treatment option in neonatal-onset seizures is easily taken into account in Neonatal Intensive Care Units (NICUs). Further studies should be conducted to better define clinical guidelines and treatment protocols.

Published
2022
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49. Epilepsy Course and Developmental Trajectories in STXBP1-DEE

Author

Balagura, Ganna, Xian, Julie, Riva, Antonella, Marchese, Francesca, Ben Zeev, Bruria, Rios, Loreto, Sirsi, Deepa, Accorsi, Patrizia, Amadori, Elisabetta, Astrea, Guja, Baldassari, Simona, Beccaria, Francesca, Boni, Antonella, Budetta, Mauro, Cantalupo, Gaetano, Capovilla, Giuseppe, Cesaroni, Elisabetta, Chiesa, Valentina, Coppola, Antonietta, Dilena, Robertino, Faggioli, Raffaella, Ferrari, Annarita, Fiorini, Elena, Madia, Francesca, Gennaro, Elena, Giacomini, Thea, Giordano, Lucio, Iacomino, Michele, Lattanzi, Simona, Marini, Carla, Mancardi, Maria Margherita, Mastrangelo, Massimo, Messana, Tullio, Minetti, Carlo, Nobili, Lino, Papa, Amanda, Parmeggiani, Antonia, Pisano, Tiziana, Russo, Angelo, Salpietro, Vincenzo, Savasta, Salvatore, Scala, Marcello, Accogli, Andrea, Scelsa, Barbara, Scudieri, Paolo, Spalice, Alberto, Specchio, Nicola, Trivisano, Marina, Tzadok, Michal, Valeriani, Massimiliano, Vari, Maria Stella, Verrotti, Alberto, Vigevano, Federico, Vignoli, Aglaia, Toonen, Ruud, Zara, Federico, Helbig, Ingo, and Striano, Pasquale

Published
2022
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50. Bi-allelic ACBD6 variants lead to a neurodevelopmental syndrome with progressive and complex movement disorders

Author

Kaiyrzhanov, Rauan, Rad, Aboulfazl, Lin, Sheng-Jia, Bertoli-Avella, Aida, Kallemeijn, Wouter W, Godwin, Annie, Zaki, Maha S, Huang, Kevin, Lau, Tracy, Petree, Cassidy, Efthymiou, Stephanie, Ghayoor Karimiani, Ehsan, Hempel, Maja, Normand, Elizabeth A, Rudnik-Schöneborn, Sabine, Schatz, Ulrich A, Baggelaar, Marc P, Ilyas, Muhammad, Sultan, Tipu, Alvi, Javeria Raza, Ganieva, Manizha, Fowler, Ben, Aanicai, Ruxandra, Akay Tayfun, Gulsen, Al Saman, Abdulaziz, Alswaid, Abdulrahman, Amiri, Nafise, Asilova, Nilufar, Shotelersuk, Vorasuk, Yeetong, Patra, Azam, Matloob, Babaei, Meisam, Bahrami Monajemi, Gholamreza, Mohammadi, Pouria, Samie, Saeed, Banu, Selina Husna, Basto, Jorge Pinto, Kortüm, Fanny, Bauer, Mislen, Bauer, Peter, Beetz, Christian, Garshasbi, Masoud, Hameed Issa, Awatif, Eyaid, Wafaa, Ahmed, Hind, Hashemi, Narges, Hassanpour, Kazem, Herman, Isabella, Ibrohimov, Sherozjon, Abdul-Majeed, Ban A, Imdad, Maria, Isrofilov, Maksudjon, Kaiyal, Qassem, Khan, Suliman, Kirmse, Brian, Koster, Janet, Lourenço, Charles Marques, Mitani, Tadahiro, Moldovan, Oana, Murphy, David, Najafi, Maryam, Pehlivan, Davut, Rocha, Maria Eugenia, Salpietro, Vincenzo, Schmidts, Miriam, Shalata, Adel, Mahroum, Mohammad, Talbeya, Jawabreh Kassem, Taylor, Robert W, Vazquez, Dayana, Vetro, Annalisa, Waterham, Hans R, Zaman, Mashaya, Schrader, Tina A, Chung, Wendy K, Guerrini, Renzo, Lupski, James R, Gleeson, Joseph, Suri, Mohnish, Jamshidi, Yalda, Bhatia, Kailash P, Vona, Barbara, Schrader, Michael, Severino, Mariasavina, Guille, Matthew, Tate, Edward W, Varshney, Gaurav K, Houlden, Henry, Maroofian, Reza, Kaiyrzhanov, Rauan, Rad, Aboulfazl, Lin, Sheng-Jia, Bertoli-Avella, Aida, Kallemeijn, Wouter W, Godwin, Annie, Zaki, Maha S, Huang, Kevin, Lau, Tracy, Petree, Cassidy, Efthymiou, Stephanie, Ghayoor Karimiani, Ehsan, Hempel, Maja, Normand, Elizabeth A, Rudnik-Schöneborn, Sabine, Schatz, Ulrich A, Baggelaar, Marc P, Ilyas, Muhammad, Sultan, Tipu, Alvi, Javeria Raza, Ganieva, Manizha, Fowler, Ben, Aanicai, Ruxandra, Akay Tayfun, Gulsen, Al Saman, Abdulaziz, Alswaid, Abdulrahman, Amiri, Nafise, Asilova, Nilufar, Shotelersuk, Vorasuk, Yeetong, Patra, Azam, Matloob, Babaei, Meisam, Bahrami Monajemi, Gholamreza, Mohammadi, Pouria, Samie, Saeed, Banu, Selina Husna, Basto, Jorge Pinto, Kortüm, Fanny, Bauer, Mislen, Bauer, Peter, Beetz, Christian, Garshasbi, Masoud, Hameed Issa, Awatif, Eyaid, Wafaa, Ahmed, Hind, Hashemi, Narges, Hassanpour, Kazem, Herman, Isabella, Ibrohimov, Sherozjon, Abdul-Majeed, Ban A, Imdad, Maria, Isrofilov, Maksudjon, Kaiyal, Qassem, Khan, Suliman, Kirmse, Brian, Koster, Janet, Lourenço, Charles Marques, Mitani, Tadahiro, Moldovan, Oana, Murphy, David, Najafi, Maryam, Pehlivan, Davut, Rocha, Maria Eugenia, Salpietro, Vincenzo, Schmidts, Miriam, Shalata, Adel, Mahroum, Mohammad, Talbeya, Jawabreh Kassem, Taylor, Robert W, Vazquez, Dayana, Vetro, Annalisa, Waterham, Hans R, Zaman, Mashaya, Schrader, Tina A, Chung, Wendy K, Guerrini, Renzo, Lupski, James R, Gleeson, Joseph, Suri, Mohnish, Jamshidi, Yalda, Bhatia, Kailash P, Vona, Barbara, Schrader, Michael, Severino, Mariasavina, Guille, Matthew, Tate, Edward W, Varshney, Gaurav K, Houlden, Henry, and Maroofian, Reza

Abstract

The acyl-CoA-binding domain-containing protein 6 (ACBD6) is ubiquitously expressed, plays a role in the acylation of lipids and proteins and regulates the N-myristoylation of proteins via N-myristoyltransferase enzymes (NMTs). However, its precise function in cells is still unclear, as is the consequence of ACBD6 defects on human pathophysiology. Using exome sequencing and extensive international data sharing efforts, we identified 45 affected individuals from 28 unrelated families (consanguinity 93%) with bi-allelic pathogenic, predominantly loss-of-function (18/20) variants in ACBD6. We generated zebrafish and Xenopus tropicalis acbd6 knockouts by CRISPR/Cas9 and characterized the role of ACBD6 on protein N-myristoylation with myristic acid alkyne (YnMyr) chemical proteomics in the model organisms and human cells, with the latter also being subjected further to ACBD6 peroxisomal localization studies. The affected individuals (23 males and 22 females), aged 1-50 years, typically present with a complex and progressive disease involving moderate-to-severe global developmental delay/intellectual disability (100%) with significant expressive language impairment (98%), movement disorders (97%), facial dysmorphism (95%) and mild cerebellar ataxia (85%) associated with gait impairment (94%), limb spasticity/hypertonia (76%), oculomotor (71%) and behavioural abnormalities (65%), overweight (59%), microcephaly (39%) and epilepsy (33%). The most conspicuous and common movement disorder was dystonia (94%), frequently leading to early-onset progressive postural deformities (97%), limb dystonia (55%) and cervical dystonia (31%). A jerky tremor in the upper limbs (63%), a mild head tremor (59%), parkinsonism/hypokinesia developing with advancing age (32%) and simple motor and vocal tics were among other frequent movement disorders. Midline brain malformations including corpus callosum abnormalities (70%), hypoplasia/agenesis of the anterior commissure (66%), short midbrain an

Published
2024

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