Testosterone action deficiency substitution . 1990Weinbauer GF, Nieschlag E. 1998 The role of testosterone in spermatogenesis. In: Nieschlag E, Behre HM, eds. Testosterone: action, deficiency, substitution, 2nd Ed. Heidelberg: Springer; 144 -168....
The role of FSH in spermatogenesis is unclear as testosterone alone has been reported to be sufficient in the gonadotropin-deficient rat. This study examin... McLachlan R I,NG Wreford,KDM De,... - 《Endocrinology》 被引量: 329发表: 1995年 The low gonadotropin-independent constitutive productio...
The increase in aromatase activity in turn reciprocally inhibits the testosterone levels and hypothalamic pituitary gonadal axis. Novel strategies are being used to treat obesity, including leptin and testosterone therapy. However, the efficacy and adverse effects of these strategies need further validation...
Gonadotrophins, testosterone and spermatogenesis in neonatally irradiated male rats: evidence for a role of the Sertoli cell in follicle-stimulating hormone feedback. de Jong, F. A. & Sharpe, R. M. ( 1977 ) Gonadotropin, testosterone and spermatogenesis in neonatally irradiated male rats: ...
−males fails to induce crow behavior, comb development, or regression of the bursa of Fabricius, which are testosterone-dependent phenotypes. These findings highlight the significance of androgen receptor mechanisms in fertility and sex-specific traits in chickens, challenging the concept of a ...
Step-by-Step Solution:1. Nature of Testosterone: - Testosterone is classified as a steroid hormone. This means it is derived from cholesterol and has a structure that allows it to easily pass through cell m
the potential harmful effects of testosterone for the body in monks [27,29]. The differences in the life expectancy between men and women are often attributed to cultural differences in common thinking. Indeed, several studies have highlighted the importance of social factors (e.g., smoking, alc...
Estrogen receptor beta selective ligand 5alpha-Androstane-3beta, 17beta-diol stimulates spermatogonial deoxyribonucleic acid synthesis in rat seminiferous ... Gonadotropins and testosterone are important regulators of spermatogenesis, even though gonadotropin receptors and the androgen receptor are not expressed...
Spermatogenesis occurs within the seminiferous tubules (STs), where Sertoli cells, targets of both testosterone and FSH, play a crucial role in germ cell (GC) proliferation and differentiation. These somatic cells, via specialized cell junctions, create the blood-testis barrier (BTB), between 16...
Sex hormones are considered key in explaining these patterns [15, 16]. Estrogen is thought to have a protective role against many diseases, while testosterone may increase the risk of developing diseases and reduce lifespan [15, 16]. Consistent with this idea, the chances of suffering from ...