Results 1 to 10 of about 2,179 (131)

De Novo 2.2 Mb 19q13.42–q13.43 Microdeletion Encompassing U2AF2: Support for a Haploinsufficiency Model

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT U2 small nuclear RNA auxiliary factor 2 (U2AF2) is an essential pre‐mRNA splicing factor involved in the early stages of pre‐mRNA splicing. To date, multiple individuals have been reported with predominantly heterozygous missense variants presenting intellectual disability, speech and motor delays, seizures, hypotonia, and thin or hypoplastic ...
Amanda Toledo, Sarah Araji, Weimin Bi, Seema R. Lalani   +3 more
wiley   +1 more source

Expanding the Utility of Exome Sequencing in Preventive and Population Genetics

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Carrier screening is a long‐standing genetic testing process offered to at‐risk couples, with or without a family history, who might have pregnancies affected by an autosomal recessive (AR) or X‐linked (XL) disorder. A total of 276 unrelated individuals, initially referred for rare disorder screening by clinicians, were enrolled in this study ...
Charilaos Kostoulas, Athanasia Sesse, Ioanna Bouba, Robert Najdecki, Spyridon Konitsiotis, Sofia Markoula, Ioannis Georgiou   +6 more
wiley   +1 more source

Skeletal muscle‐specific myostatin overexpression promotes muscle oxidative capacity and fatigue resistance in transgenic mice

Experimental Physiology, EarlyView.
Abstract In addition to controlling muscle mass, myostatin may support oxidative metabolism and endurance. Loss of function through gene knockout or post‐natal blockade generally lowers muscle oxidative capacity and increases fatigability. These observations imply that myostatin activation could promote a more oxidative and less fatigable muscle ...
Andy V. Khamoui, Andrea Abraham, Janos Porszasz, Istvan Kovanecz, Silvana Constantinescu, Harry B. Rossiter, Suzanne Reisz‐Porszasz   +6 more
wiley   +1 more source

The Novel ACTC1 p.Gly50Ser Variant Is Associated With Arrhythmia and Secondary Features of HCM Without Hypertrophy

American Journal of Medical Genetics Part A, Volume 200, Issue 7, Page 1742-1748, July 2026.
ABSTRACT The key diagnostic criterion for hypertrophic cardiomyopathy is the presence of otherwise unexplained hypertrophy. Current definitions of HCM rely on specific thresholds to establish a diagnosis, while guideline directed risk stratification algorithms take its magnitude into consideration.
Thomas D. Gossios, Dimitrios Ntelios, Thomas Zegkos, Despoina Parcharidou, Pavlos Rouskas, Sotirios Katranas, Ioannis Papoulidis, Vlasis Ninios, Antonios Ziakas, Georgios K. Efthimiadis   +9 more
wiley   +1 more source

Coincidence of Nemaline Myopathy and Agenesis of Corpus Callosum in a Newborn Infant: Case Report

Journal of Behçet Uz Children's Hospital, 2019
The diagnosis of the hypotonia at the neonatal period is difficult. In the neonatal period, the differential must include acute illnesses and systemic diseases such as sepsis, congestive heart failure and inborn errors of metabolism. Congenital disorders
Sinem Akbay, Esra Ozer, Ozkan Ilhan, Berat Kanar, Seyma Memur, Gulden Diniz, Dilek Cavusoglu, Nihal Olgaç Dündar   +7 more
doaj   +1 more source

Congenital Myopathies and Muscular Dystrophies: A Single Tertiary Center Experience and Factors Associated With Long‐Term Outcomes

Muscle &Nerve, Volume 74, Issue 1, Page 121-130, July 2026.
ABSTRACT Introduction/Aims Data on respiratory, feeding, ambulatory outcomes and prognostic factors for congenital myopathies (CM) and congenital muscular dystrophies (CMD) remain limited. Therefore, in this study, we report the characteristics of a large single‐center cohort of patients with CM and CMD, focusing on long‐term outcomes and aiming to ...
Can Ozlu, Margaret McGurn, Susan Iannaccone, Zurisadai Gonzalez Castillo, Kaitlin Batley   +4 more
wiley   +1 more source

Nemaline myopathy-related skeletal muscle α-actin (ACTA1) mutation, Asp286Gly, prevents proper strong myosin binding and triggers muscle weakness. [PDF]

PLoS ONE, 2012
Many mutations in the skeletal muscle α-actin gene (ACTA1) lead to muscle weakness and nemaline myopathy. Despite increasing clinical and scientific interest, the molecular and cellular pathogenesis of weakness remains unclear.
Julien Ochala, Gianina Ravenscroft, Nigel G Laing, Kristen J Nowak   +3 more
doaj   +1 more source

The Molecular Diagnosis of Myopathies: Integrating Genomic, Proteomic, and Pathological Insights Toward Precision Medicine

Clinical Genetics, Volume 110, Issue 1, Page 15-28, July 2026.
Advances in genomic, proteomic, and transcriptomic technologies are transforming the diagnosis of genetic myopathies. When integrated with traditional muscle pathology, multi‐omics approaches improve diagnostic yield, clarify disease mechanisms, and support more precise, mechanism‐based therapeutic strategies for patients with neuromuscular disorders ...
Ludmila Alem, Denise de Abreu Pereira, Katia Carneiro   +2 more
wiley   +1 more source

Generation of two isogenic induced pluripotent stem cell lines from a 1-month-old nemaline myopathy patient harbouring a homozygous recessive c.121C > T (p.Arg39Ter) variant in the ACTA1 gene

Stem Cell Research, 2022
Nemaline myopathy (NM) is a congenital skeletal muscle disorder that typically results in muscle weakness and the presence of rod-like structures (nemaline bodies) in the sarcoplasma and/or in the nuclei of myofibres.
Isabella S. Suleski, Robert Smith, Christina Vo, Carolin K. Scriba, Safaa Saker, Thierry Larmonier, Edoardo Malfatti, Norma B. Romero, Peter J. Houweling, Kristen J. Nowak, Nigel G. Laing, Rhonda L. Taylor, Joshua S. Clayton   +12 more
doaj   +1 more source

Congenital Nemaline Myopathy

Pediatric Neurology Briefs, 1994
A female neonate with a rapidly fatal course of nemaline myopathy is reported from the University of Siena, Italy.
J Gordon Millichap
doaj   +1 more source