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Selected plant extracts and female fertility: role in the regulation of the hypothalamo-pituitary-ovarian axis in normal and pathological conditions.
Reprod Fertil Dev
January 2025
CNRS, INRAE, Université de Tours, PRC, Nouzilly, France.
Female infertility, which affects 10-20% of couples worldwide, is a growing health concern in developing countries. It can be caused by multiple factors, including reproductive disorders, hormonal dysfunctions, congenital malformations and infections. In vitro and in vivo studies have shown that plant extracts regulate gonadotropin-releasing hormone, kisspeptin, and gonadotropin expression and/or secretion at the hypothalamic-pituitary level and modulate somatic and germ cells, such as steroidogenesis, proliferation, apoptosis, and oxidative stress at the ovarian level.
View Article and Find Full Text PDFGlutamatergic Input from Arcuate Nucleus Kiss1 Neurons to Preoptic Kiss1 Neurons is Required for LH Surge in Female Mice.
Endocrinology
January 2025
Department of Chemical Physiology and Biochemistry, Oregon Health & Science University, Portland, OR, USA.
Hypothalamic kisspeptin (Kiss1) neurons are vital for maintaining fertility in the mammal. In the female rodent, Kiss1 neurons populate the anteroventral periventricular/periventricular nuclei (Kiss1AVPV/PeN) and the arcuate nucleus (Kiss1ARH). Kiss1ARH neurons (a.
View Article and Find Full Text PDFInvolvement of nuclear receptor corepressor 2 (NCOR2) in estrogen-induced repression of arcuate Kiss1 expression in female rats.
J Reprod Dev
January 2025
Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.
Hypothalamic arcuate (ARC) kisspeptin neurons are considered the gonadotropin-releasing hormone pulse generator in rats. In virgin rats, the expression of the ARC kisspeptin gene (Kiss1) is repressed by proestrous levels of estradiol-17β (high E2) but not by diestrous levels of E2 (low E2). In lactating rats, ARC Kiss1 expression is repressed by low E2 during late lactation.
View Article and Find Full Text PDFModulates mRNA Expression of Through Multiple Signaling Pathways Related to Glycolysis in GT1-7 Cells.
Animals (Basel)
January 2025
School of Agriculture and Biology, Liaocheng University, Liaocheng 252059, China.
and miRNA regulate mammalian pubertal initiation and Gonadotropin-releasing hormone (GnRH) production. However, it remains unclear which signaling pathways regulates to modulate GnRH production. In this study, the mRNA expression levels of and in the pubertal and juvenile goat hypothalamus and pituitary gland were detected, and expression in the pubertal hypothalamus decreased significantly compared with that in juvenile tissues.
View Article and Find Full Text PDFCholecystokinin (CCK) Is a Mediator Between Nutritional Intake and Gonadal Development in Teleosts.
Cells
January 2025
Hubei Hongshan Laboratory, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China.
Nutritional intake is closely linked to gonadal development, although the mechanisms by which food intake affects gonadal development are not fully understood. Cholecystokinin (CCK) is a satiety neuropeptide derived from the hypothalamus, and the present study observed that hypothalamic CCK expression is significantly influenced by food intake, which is mediated through blood glucose levels. Interestingly, CCK and its receptors were observed to exhibit a high expression in the hypothalamus-pituitary-gonad (HPG) axis of grass carp (), suggesting that CCK is potentially involved in regulating fish reproduction through the HPG axis.
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