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Vitamin D protects spermatogonia and Sertoli cells from heat stress damage by inhibiting NLRP3.
Front Pediatr
January 2025
Pathology Department, Anhui Provincial Children's Hospital, Hefei, Anhui, China.
Introduction: Cryptorchidism can damage cells in the cryptorchid testes due to elevated local temperatures, potentially impacting the fertility of the child in adulthood. Research indicates that vitamin D enhances sperm quality in adult males. This study aimed to explore whether vitamin D inhibits NLRP3 activation, thus helping to mitigate heat stress damage to testicular spermatogenic and Sertoli cells.
View Article and Find Full Text PDFHaploid like spermatid generation by transplantation of neonatal mouse testicular tissue into the epididymal fat of castrated adult mouse.
JBRA Assist Reprod
January 2025
Department of Anatomical Sciences, Faculty of Medicine, Tarbiat Modares University, Tehran, Iran.
Objective: Many cancer survivors may experience irreversible infertility due to chemotherapy treatment for childhood cancer. In this study, spermatogenesis development was evaluated following the grafting of fresh and frozen-thawed testicular tissue from neonatal mice to the epididymal fat of adult mice.
Methods: After bilateral castration of recipient mice, fresh or frozen-thawed neonatal testis tissues were grafted into the epididymal fat of the mice.
Factors influencing scrotal temperature in the bull during simulated heat treatments and thermoneutral conditions as determined by multimodel inferencing.
J Therm Biol
January 2025
School of Agriculture and Food Sustainability, Animal Science Group, The University of Queensland, Gatton, QLD, Australia, 4343. Electronic address:
The creation of any model is complex requiring vast amounts of data, typically gathered over a series of experiments. Specifically the temperature humidity index (THI) and heat load index (HLI) are used as management tools to implement mitigation strategies during hot climatic conditions. Exposure of the testes to hot climatic conditions has a negative impact on spermatogenesis in the bull, and other species.
View Article and Find Full Text PDFTranscriptome Analysis Reveals Sertoli Cells Adapting Through Redox and Metabolic Pathways Under Heat Stress in Goats.
Genes (Basel)
December 2024
College of Animal Science and Technology, Sanya Institute of China Agricultural University, Sanya 572025, China.
Background/objectives: Climate change-induced temperature elevations pose significant challenges to livestock reproduction, particularly affecting testicular function in small ruminants. This study investigates the acute heat-stress response in goat Sertoli cells (SCs), aiming to elucidate the molecular mechanisms underlying heat-induced damage to male reproductive tissues.
Methods: SCs were isolated from testes of 4-month-old black goats and exposed to heat stress (44 °C for 2.
Heterozygous mutation in BRCA2 induces accelerated age-dependent decline in sperm quality with male subfertility in rats.
Sci Rep
January 2025
Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.
Tumor suppressor BRCA2 executes homologous recombination to repair DNA double-strand breaks in collaboration with RAD51, involving exon 11 and 27. Exon 11 constitutes a region where pathogenic variants (PVs) accumulate, and mutations in this region are known to contribute to carcinogenesis. However, the impact of the heterozygous PVs of BRCA2 exon 11 on the life quality beyond cancer risk, including male fertility, remains unclear.
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