Objective: To observe the changes of serum testosterone after allotransplantation of Leydig cells in rats.
Methods: Leydig cells were isolated from the testes of SD rats with the Percoll technique and serum testosterone of the receptors was determined once a month for 3 successive times.
Results: After allotransplantation of Leydig cells, the serum testosterone level of the receptors increased gradually, significantly higher at 3 months than that of the normal rats younger than 2 months old.
Conclusion: Allotransplantation of Leydig cells has a promising application value in the treatment of male primary hypogonadism.
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Reprod Toxicol
January 2025
Department of Andrology, The First Affiliated Hospital, Hengyang Medical School, University of South China. Electronic address:
Sci Rep
January 2025
Department of Urology, First Hospital of Shanxi Medical University, No. 85, Jiefang South Road, Taiyuan, 030001, China.
Late-onset hypogonadism (LOH) refers to sexual and non-sexual symptoms in men caused by age-related decreases in circulating testosterone. Leydig cells (LCs) transplantation is considered to be one of a viable approach for LOH therapy, but the limited source of LCs limits the application of this approach. The aim of this study was to induce the directed differentiation of rat bone marrow mesenchymal stem cells (BMSCs) into LCs in vitro, and explore the potential involvement of Wnt/β-catenin signaling pathway in the differentiation process.
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Biology of the Testis (BITE) Laboratory, Genetics, Reproduction and Development (GRAD) Research Group, Vrije Universiteit Brussel, Brussels, Belgium.
Although the impact of gender-affirming hormone therapy (GAHT) on spermatogenesis in trans women has already been studied, data on its precise effects on the testicular environment is poor. Therefore, this study aimed to characterize, through histological and transcriptomic analysis, the spermatogonial stem cell niche of 106 trans women who underwent standardized GAHT, comprising estrogens and cyproterone acetate. A partial dedifferentiation of Sertoli cells was observed, marked by the co-expression of androgen receptor and anti-Müllerian hormone which mirrors the situation in peripubertal boys.
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Laboratory of Bone and Adipose Biology, Shanxi Medical University, Taiyuan, China.
The FSH-FSHR pathway has been considered an essential regulator in reproductive development and fertility. But there has been emerging evidence of FSHR expression in extragonadal organs. This poses new questions and long-term debates regarding the physiological role of the FSH-FSHR, and underscores the need for reliable, in vivo analysis of FSHR expression in animal models.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
College of Veterinary Medicine, Gansu Agriculture University, Lanzhou 730070, China.
Long noncoding RNAs (LncRNAs) play essential roles in numerous biological processes in mammals, such as reproductive physiology and endocrinology. Cryptorchidism is a common male reproductive disease. Circadian rhythms are actively expressed in the reproductive system.
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