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- W4291115268 abstract "Hypothalamic control of reproduction relies on GnRH and kisspeptin (KP) secretions. KP neurons are sensitive to sex steroids and metabolic status and their distribution overlaps with neurons producing apelin, a metabolic hormone known to decrease LH secretion in rats. Here, we observed neuroanatomical contacts between apelin fibers and both KP and GnRH neurons in the hypothalamus of male rodents. Intracerebroventricular apelin infusion for 2 weeks in male mice did not decrease LH levels nor did it affect gene expression for KP, neurokinin B and dynorphin. Finally, increasing apelin concentrations did not modulate Ca2+ levels of cultured GnRH neurons, while 10 μM apelin infusion on forskolin pretreated GnRH neurons revoked a rhythmic activity in 18% of GnRH neurons. These results suggest that acute apelin effect on LH secretion does not involve modulation of gene expression in KP neurons but may affect the secretory activity of GnRH neurons." @default.
- W4291115268 created "2022-08-13" @default.
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- W4291115268 date "2022-11-01" @default.
- W4291115268 modified "2023-10-03" @default.
- W4291115268 title "How does apelin affect LH levels? An investigation at the level of GnRH and KNDy neurons" @default.
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- W4291115268 doi "https://doi.org/10.1016/j.mce.2022.111752" @default.
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