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Fam170a deficiency causes male infertility by impairing histone-to-protamine exchange during mouse spermiogenesis.
Nucleic Acids Res
January 2025
Institute of Reproductive Medicine, School of Medicine, Nantong University, Nantong 226001, China.
Chromatin remodeling, which involves the histone-to-protamine exchange process during spermiogenesis, is crucial for sperm nuclear condensation and male fertility. However, the key regulators and underlying molecular mechanisms involved in this process remain largely unexplored. In this study, we discovered that deficiency in the family with sequence similarity 170 member A (Fam170a) led to abnormal sperm nuclear morphology and male infertility in mice, mirroring the observation of very low Fam170a transcription levels in sperm of infertile men with teratozoospermia.
View Article and Find Full Text PDFUnlabelled: Autoimmune regulator (AIRE), a transcription factor expressed by medullary thymic epithelial cells, is required for shaping the self-antigen tolerant T cell receptor repertoire. Humans with mutations in suffer from Autoimmune Polyglandular Syndrome Type 1 (APS-1). Among many symptoms, men with APS-1 commonly experience testicular insufficiency and infertility, but the mechanisms causing infertility are unknown.
View Article and Find Full Text PDFK2 channel positive modulation reduces alcohol drinking in female C57BL/6J mice.
Alcohol
January 2025
Department of Neuroscience, Charleston Alcohol Research Center, Medical University of South Carolina, 70 President Street, Drug Discovery Building, Charleston, SC 29425. Electronic address:
Although men have historically exhibited higher levels of alcohol use disorder (AUD) diagnosis, the gap between men and women has been diminishing quickly. Preclinical screening for pharmacological treatments for AUD has typically focused solely on males, ignoring the possibility that males and females may differ mechanistically for the same behavioral phenotype. To ensure the efficacy of treatment targets across the sexes, it is crucial to study the pharmacological effects of AUD treatments in males and females.
View Article and Find Full Text PDFEffect of Hepatitis E Virus on the Male Reproductive System: A Review of Current Evidence.
Viruses
January 2025
Department of Biomedical & Nutritional Sciences, Zuckerberg College of Health Sciences, University of Massachusetts Lowell, Lowell, MA 01854, USA.
Hepatitis E Virus (HEV) is a globally widespread pathogen that causes acute hepatitis infection. Beyond hepatic pathogenesis, HEV has been proven to cause several extrahepatic manifestations, such as neurological, renal, and hematological manifestations. It was also associated with mortality in pregnant females.
View Article and Find Full Text PDFObesity-induced mesenteric PVAT remodelling is sexually dimorphic, but not driven by ovarian hormones : Short title: Obesity induces sex-specific responses in mesenteric PVAT.
Cardiovasc Diabetol
January 2025
Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, Scotland, UK.
Background: Obesity, a major risk factor for cardiovascular disease (CVD), is associated with hypertension and vascular dysfunction. Perivascular adipose tissue (PVAT), a metabolically active tissue surrounding blood vessels, plays a key role in regulating vascular tone. In obesity, PVAT becomes dysregulated which may contribute to vascular dysfunction; how sex impacts the remodelling of PVAT and thus the altered vascular contractility during obesity is unclear.
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