Three siblings presented with fatal cardiomyopathy confirmed by electron microscopy, and normal serum but low muscle carnitine concentrations. A fourth had similar signs but remained asymptomatic. He was treated with carnitine orally which increased the concentration in muscle, though it remained below normal. Electron microscopic features were unchanged.
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http://dx.doi.org/10.1136/adc.62.11.1170 | DOI Listing |
EMBO J
March 2025
Department of Animal Sciences, Purdue University, West Lafayette, IN, 47907, USA.
During homeostasis and regeneration, satellite cells, the resident stem cells of skeletal muscle, have distinct metabolic requirements for fate transitions between quiescence, proliferation and differentiation. However, the contribution of distinct energy sources to satellite cell metabolism and function remains largely unexplored. Here, we uncover a role of mitochondrial fatty acid oxidation (FAO) in satellite cell integrity and function.
View Article and Find Full Text PDFBMC Gastroenterol
March 2025
Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Background: Muscle cramps are among the common debilitating complications of liver cirrhosis. Since this complication lacks effective treatments, we aimed to evaluate the effectiveness of L-carnitine supplementation in reducing the frequency, duration, and severity of muscle cramps in patients with liver cirrhosis.
Methods: The present retrospective cohort was conducted on adult patients referred between November 2022 and December 2023 to a tertiary referral hospital in Shiraz, Iran.
J Dairy Sci
March 2025
Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Sciences and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University, Belgium.. Electronic address:
The transition from late gestation to early lactation in dairy cows involves dynamic metabolic adaptations orchestrated by homeorhetic mechanisms, including hepatic fatty acid and amino acid metabolism. To gain deeper understanding of these mechanisms, we evaluated changes in bloodspot acylcarnitines (AC) and free amino acid (AA) profiles, and conventional blood biomarkers of energy balance [β-hydroxybutyrate (BHB), nonesterified fatty acids (NEFA), glucose, insulin, insulin-like growth factor-1 (IGF-1), and fructosamine) along with weekly milk composition and dry matter intake in 2 sequential observational trials. Data were analyzed using correlation and cluster analysis, and linear-mixed effects models with and without repeated measures.
View Article and Find Full Text PDFArthritis Res Ther
March 2025
Institute of Rheumatology, Na Slupi 4, Prague, 12850, Czech Republic.
Background: Low levels of vitamin D have been associated with several autoimmune diseases. A growing body of evidence supports the association of vitamin D with skeletal muscle damage, regeneration, and energy and lipid metabolism. The aim was to analyse vitamin D and its receptor (VDR) in the muscle tissue of patients with idiopathic inflammatory myopathies (IIM) and to relate them to clinical parameters and muscle lipid and energy metabolism.
View Article and Find Full Text PDFComp Biochem Physiol Part D Genomics Proteomics
February 2025
School of Life and Health Sciences, State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China; College of Marine Science and Engineering, Hainan University, Haikou 570228, China. Electronic address:
The yellowfin tuna is a large marine carnivorous fish with high commercial value. It is known for its unique physiological characteristics and holds significant potential for aquaculture. However, research on this species' developmental biology and physiology remains limited, particularly regarding the structural characteristics and functional changes in the developing heart.
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