Results 61 to 70 of about 28,343 (239)

Modeling Fragile X Syndrome: Characterizing Fmr1 Gene Knockout Mice across Genotype, Behavior, and Morphology

Neurological Sciences and Neurophysiology
Objective: Fragile X syndrome (FXS) is a hereditary condition resulting from dynamic mutations in the Fmr1 gene, leading to reduced or absent fragile X mental retardation protein (FMRP). Although molecular genetic diagnostics for FXS have advanced, there
Yonghua Liao, Junjie Liu, Jinyuan Zhang, Da Chen, Yifan Liu, Zhuolin Li, Hao Su, Jiaye Tang, Shengqiang Chen   +8 more
doaj   +1 more source

The multiple hit model of infantile and epileptic spasms: The 2025 update

Epilepsia Open, EarlyView.
Abstract Objective Infantile and epileptic spasms syndrome (IESS) is a developmental and epileptic encephalopathy manifesting with epileptic spasms and poor neurodevelopmental outcomes. There is an urgent need for the development of more effective and tolerated therapies.
Aristea S. Galanopoulou, Wenzhu B. Mowrey, Wei Liu, Anna Maria Katsarou, Qianyun Li, Oleksii Shandra, Solomon L. Moshé   +6 more
wiley   +1 more source

A sound-driven cortical phase-locking change in the Fmr1 KO mouse requires Fmr1 deletion in a subpopulation of brainstem neurons

Neurobiology of Disease, 2022
Background: Sensory impairments commonly occur in patients with autism or intellectual disability. Fragile X syndrome (FXS) is one form of intellectual disability that is often comorbid with autism.
Andrew J. Holley, Aleya Shedd, Anna Boggs, Jonathan Lovelace, Craig Erickson, Christina Gross, Miranda Jankovic, Khaleel Razak, Kimberly Huber, Jay R. Gibson   +9 more
doaj   +1 more source

Premature recruitment of oocyte pool and increased mTOR activity in Fmr1 knockout mice and reversal of phenotype with rapamycin. [PDF]

, 2018
While mutations in the fragile X mental retardation-1 (FMR1) gene are associated with varying reproductive outcomes in females, the effects of a complete lack of FMR1 expression are not known.
Ascano, M, Mok-Lin, E, Rosenwaks, Z, Serganov, A, Tuschl, T, Williams, Z   +5 more
core   +2 more sources

FindingFMR1mosaicism in Fragile X syndrome [PDF]

Expert Review of Molecular Diagnostics, 2016
OBJECTIVE: Almost all patients with Fragile X Syndrome (FXS) exhibit a CGG repeat expansion (full mutation) in the Fragile Mental Retardation 1 gene (FMR1). Here, the authors report five unrelated males with FXS harboring a somatic full mutation/deletion mosaicism.
Gonçalves, Thaís Fernandez, dos Santos, Jussara Mendonça, Gonçalves, Andressa Pereira, Tassone, Flora, Mendoza-Morales, Guadalupe, Ribeiro, Márcia Gonçalves, Kahn, Evelyn, Boy, Raquel, Pimentel, Márcia Mattos Gonçalves, Santos-Rebouças, Cíntia Barros   +9 more
openaire   +4 more sources

Integrating Long‐Read Nanopore Sequencing for Precision Resolution of Genomic Variants in Dystonia

Movement Disorders, EarlyView.
Abstract Background Although many individuals with dystonia present with features indicative of single‐gene etiologies, obtaining definitive genetic diagnoses can be challenging. Objective We assessed the value of nanopore‐based long‐read sequencing (LRS) in achieving molecular clarification of dystonic syndromes.
Ugo Sorrentino, Martin Pavlov, Nazanin Mirza‐Schreiber, Melanie Brugger, Theresa Brunet, Eugenia Tsoma, Alice Saparov, Ivana Dzinovic, Philip Harrer, Antonia M. Stehr, Matias Wagner, Erik Tilch, Barbara Wallacher, Shiraz Alhasan, Anne Koy, Alessio Di Fonzo, Miriam Kolnikova, Katarina Kusikova, Petra Havrankova, Raushana Tautanova, Sandy Lösecke, Sebastian Eck, Sylvia Boesch, Jan Necpal, Matej Skorvanek, Robert Jech, Holger Prokisch, Juliane Winkelmann, Konrad Oexle, Elisabeth Graf, Michael Zech   +30 more
wiley   +1 more source

Fragile X Messenger Ribonucleoprotein 1 (FMR1), a novel inhibitor of osteoblast/osteocyte differentiation, regulates bone formation, mass, and strength in young and aged male and female mice

Bone Research, 2023
Fragile X Messenger Ribonucleoprotein 1 (FMR1) gene mutations lead to fragile X syndrome, cognitive disorders, and, in some individuals, scoliosis and craniofacial abnormalities. Four-month-old (mo) male mice with deletion of the FMR1 gene exhibit a mild
Padmini Deosthale, Julián Balanta-Melo, Amy Creecy, Chongshan Liu, Alejandro Marcial, Laura Morales, Julita Cridlin, Sylvia Robertson, Chiebuka Okpara, David J. Sanchez, Mahdi Ayoubi, Joaquín N. Lugo, Christopher J. Hernandez, Joseph M. Wallace, Lilian I. Plotkin   +14 more
doaj   +1 more source

Methotrexate treatment of FraX fibroblasts results in FMR1 transcription but not in detectable FMR1 protein levels [PDF]

Journal of Neurodevelopmental Disorders, 2013
Abstract Background Fragile X syndrome is caused by the loss of FMRP expression due to methylation of the FMR1 promoter. Treatment of fragile X syndrome patients’ lymphoblastoid cells with 5-azadeoxycytidine results in demethylation of the promoter and reactivation of the gene.
Brendel, Cornelia, Mielke, Benjamin, Hillebrand, Merle, Gärtner, Jutta, Huppke, Peter   +4 more
openaire   +3 more sources

FMRpolyG accumulates in FMR1 premutation granulosa cells [PDF]

Journal of Ovarian Research, 2020
Abstract Background Fragile X premutation (Amplification of CGG number 55–200) is associated with increased risk for fragile X-Associated Premature Ovarian Insufficiency (FXPOI) in females and fragile X-associated tremor/ataxia syndrome (FXTAS) predominantly in males.
M. Friedman-Gohas, S. E. Elizur, O. Dratviman-Storobinsky, A. Aizer, J. Haas, H. Raanani, R. Orvieto, Y. Cohen   +7 more
openaire   +3 more sources

Clinical, Genetic, and Imaging Characteristics of SCA27B: Insights from a Large Dutch Cohort

Movement Disorders, EarlyView.
Abstract Background Deep intronic GAA repeat expansions in intron 1 of the FGF14 gene were identified in 2023 as cause of late‐onset cerebellar ataxia. Since then, GAA‐FGF14‐related ataxia (SCA27B) has emerged as one of the most common genetic causes of late‐onset cerebellar ataxia.
Teije H. van Prooije, Maartje Pennings, Roderick P.P.W.M. Maas, Jeroen de Vries, Corien Verschuuren‐Bemelmans, Vincent Odekerken, Sirwan K.L. Darweesh, Mark Huisman, Mayke Oosterloo, Arthur Buijink, Jaron van de Wardt, Els Vanhoutte, Tsz Hang Wong, Lisette Koens, Eva de Boer, Judith van Gaalen, Martijn Beudel, Dareia S. Roos, Jorrit I. Hoff, Thimo Cornelissen, Meyke Schouten, Thatjana Gardeichik, Erica van der Looij, Christine Klein, Joanne Trinh, Erik‐Jan Kamsteeg, Bart van de Warrenburg   +26 more
wiley   +1 more source