The effect of reflex and denervated dystrophy of the rat kidneys on the interaction of aldosterone-3H with specific cytoplasmic receptors and nuclei of this organ was investigated in vitro and in vivo experiments. It was found that reflex dystrophy decreases the intensity of hormone binding with cytoplasmic receptors by 36% and aldosterone-3H accumulation in the renal nuclei by 51%. The influence of denervated dystrophy of the organ specific hormone accumulation in the same subcellular fractions was not observed. The more accurate data on the effect of renal reflex dystrophy on aldosterone-3H-receptor interaction were obtained in vivo experiments comparatively to those in vitro.
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J Cell Sci
December 2024
Department of Molecular, Cellular and Developmental Biology, 1105 N. University Avenue, Ann Arbor, MI 48109, USA.
The muscle-specific microRNA miR-206 has recently emerged as a potential regulator of genes involved in the formation and regeneration of the neuromuscular junction (NMJ). This study investigated miR-206-3p (miR-206) expression in synaptic and non-synaptic regions of denervated mice and α-dystrobrevin (Dtna)-knockout mice, as well as its impact on the formation and/or maintenance of agrin-induced acetylcholine receptor (AChR) clusters. In denervated, Dtna-deficient and crushed muscles, miR-206 expression significantly increased compared to what was seen for innervated muscles.
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August 2024
Department of Radiology, Stanford University School of Medicine, 300 Pasteur Dr, Stanford, CA 94305.
Skelet Muscle
May 2024
Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, 1 rue Michel Servet, Geneva, CH-1211, Switzerland.
Background: Myotonic Dystrophy type I (DM1) is the most common muscular dystrophy in adults. Previous reports have highlighted that neuromuscular junctions (NMJs) deteriorate in skeletal muscle from DM1 patients and mouse models thereof. However, the underlying pathomechanisms and their contribution to muscle dysfunction remain unknown.
View Article and Find Full Text PDFCommun Biol
May 2024
Graduate School of Integrated Sciences for Life, Hiroshima University, Hiroshima, Japan.
Glycerophosphocholine (GPC) is an important precursor for intracellular choline supply in phosphatidylcholine (PC) metabolism. GDE5/Gpcpd1 hydrolyzes GPC into choline and glycerol 3-phosphate; this study aimed to elucidate its physiological function in vivo. Heterozygous whole-body GDE5-deficient mice reveal a significant GPC accumulation across tissues, while homozygous whole-body knockout results in embryonic lethality.
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March 2024
Institute of Biomedical and Neural Engineering, Reykjavik University, Reykjavik, Iceland.
Scientific conferences increasingly suffer from the need for short presentations in which speakers like to dwell on the details of their work. A mitigating factor is to encourage discussion and planning of collaborations by organizing small meetings in a hotel large enough to host all attendees. This extends discussions' opportunities during morning breakfasts, lunches, dinners and long evenings together.
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