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http://dx.doi.org/10.1134/S1607672913050165 | DOI Listing |
Rev Esp Enferm Dig
January 2025
Digestive Diseases, Hospital Universitario Virgen de las Nieves, España.
Cholesterol ester storage disease (CESD) is a rare autosomal recessive lysosomal storage disorder caused by mutations in the LIPA gene, leading to reduced lysosomal acid lipase activity, cholesterol ester accumulation, and systemic manifestations including liver dysfunction and dyslipidemia. We report the case of a 25-year-old male presenting with subacute jaundice, hyperbilirubinemia (total bilirubin 51 mg/dL, predominantly direct), and dyslipidemia characterized by elevated total cholesterol and low HDL cholesterol levels. Initial diagnostic workup for acute hepatitis and liver dysfunction, including serological and imaging studies, was unremarkable.
View Article and Find Full Text PDFJ Muscle Res Cell Motil
January 2025
School of Molecular and Cellular Biology, University of Leeds, Leeds, LS2 9JT, UK.
Biallelic mutations in multiple EGF domain protein 10 (MEGF10) gene cause EMARDD (early myopathy, areflexia, respiratory distress and dysphagia) in humans, a severe recessive myopathy, associated with reduced numbers of PAX7 positive satellite cells. To better understand the role of MEGF10 in satellite cells, we overexpressed human MEGF10 in mouse H-2k-tsA58 myoblasts and found that it inhibited fusion. Addition of purified extracellular domains of human MEGF10, with (ECD) or without (EGF) the N-terminal EMI domain to H-2k-tsA58 myoblasts, showed that the ECD was more effective at reducing myoblast adhesion and fusion by day 7 of differentiation, yet promoted adhesion of myoblasts to non-adhesive surfaces, highlighting the importance of the EMI domain in these behaviours.
View Article and Find Full Text PDFAm J Hum Genet
January 2025
Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Center for Rare Disease, University of Tübingen, Tübingen, Germany; Genomics for Health in Africa (GHA), Africa-Europe Cluster of Research Excellence (CoRE). Electronic address:
Nutrient-dependent mTORC1 regulation upon amino acid deprivation is mediated by the KICSTOR complex, comprising SZT2, KPTN, ITFG2, and KICS2, recruiting GATOR1 to lysosomes. Previously, pathogenic SZT2 and KPTN variants have been associated with autosomal recessive intellectual disability and epileptic encephalopathy. We identified bi-allelic KICS2 variants in eleven affected individuals presenting with intellectual disability and epilepsy.
View Article and Find Full Text PDFNeuromuscul Disord
December 2024
University of Florida College of Medicine - Jacksonville, Jacksonville, FL, USA.
Sengers Syndrome (SS) is a rare autosomal recessive mitochondrial disorder caused by mutations in the acylglycerol kinase (AGK) gene on chromosome 7, also known as cardiomyopathic mitochondrial DNA depletion syndrome (MTDPS10). This disorder disrupts mitochondrial DNA function and energy metabolism, presenting with symptoms such as congenital cataracts, hypertrophic cardiomyopathy, skeletal myopathy, exercise intolerance, and lactic acidosis. Previous research has shown SS affects oxidative phosphorylation and mitochondrial respiration, implicating the TIM22 complex and carrier import.
View Article and Find Full Text PDFAndrology
January 2025
Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.
Objectives: Acetylated tubulin is a hallmark of flagellar stability in spermatozoa, and studies have demonstrated the ability of CDYL to function as a tubulin acetyltransferase in spermatozoa. Of note, germline conditional knockout of Cdyl can lead to asthenoteratozoospermia and infertility in male mice. However, the role of CDYL gene in human fertility remains uncharacterized.
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