Introduction Growth hormone (GH) is a 191 amino acid protein, which binds readily to the growth hormone receptor (GHR) and in some species the prolactin receptor ( GH has been shown to have multiple specific effects in female and male reproductive physiology, such as promotion of steroidogenesis, enhancement of gonadotropin sensitivity as well as significant stimulatory effects on spermatogenesis and follicular development, which ultimately aligns with the initiation of puberty ( GH, GHR, and Follicular Growth GH has been reported by many studies to modify the growth of developing ovarian follicles ( In vitro studies using caprine preantral follicles have demonstrated the stimulatory effect of GH on antral follicle development particularly during the initial antral phase ( in vitro maturation protocols, led to the generation of healthy oocyte-cumulus complexes, production of more metaphase II oocytes, and better fertilization ability (Figure 1) ( Figure 1 The expression status of GHR mRNA at different follicle developmental stages was investigated in the goat, and high expression was found in oocyte, stromal, cumulus and mural granulosa cells of both small and large antral follicles ( Taken together, it is reasonable to assume that the GHR influences fertility given its effect on puberty and that GH supplementation can restore fertility in humans with GH-deficiency ( GH and Ovarian Cell Proliferation, Differentiation, and Gonadotropin Response There is evidence to suggest that GH and/or IGF act in synergy with gonadotropins, FSH and luteinising hormone (LH), in reproductive tissue to promote granulosa and theca cell expansion, along with granulosa cell differentiation to luteal cells (Figure 1)
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In summary, oxidative stress plays a pivotal role in male infertility, primarily through its deleterious effects on spermatozoa, which manifest as diminished motility, reduced fertilization capabilities, and compromised genetic integrity
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Tinatanggal din nila ang dumi at patay na cells ng balat, na nagbibigay ng sariwang hitsura
