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  • Author: Weiheng Zhang x
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Jian Gong School of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China

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Yinjuan Lv School of Basic Medicine, Hubei University of Chinese Medicine, Wuhan, China

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Yuhao Meng Hubei University of Chinese Medicine, Wuhan, China

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Weiheng Zhang Hubei University of Chinese Medicine, Wuhan, China

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Xiaocui Jiang Hubei University of Chinese Medicine, Wuhan, China

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Min Xiao Laboratory Animal Center, Hubei University of Chinese Medicine, Wuhan, China

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Prenatal stress can lead to the programming of the neuroendocrine system in male offspring, disrupting the hypothalamic testicular axis and adversely affecting the reproductive health of male offspring. This study aimed to determine the long-term effects of prenatal stress on the KISS1 system in male offspring and the effects on reproductive function in male offspring. Sixteen pregnant females were divided into a prenatal control group (PC, n = 8) and a prenatal stress group (PS, n = 8). The PS group was modeled with chronic unpredictable mild stress (CUMS) from day 1 of gestation to full-term delivery. Differences between the two groups in various maternal parameters, including glucocorticoid secretion, litter size, and the effects of male offspring birth weight, the KISS1 system, and reproductive function, were determined. Male offspring of PS dams had lower birth weights compared to prenatal controls.KISS1 gene expression is reduced at birth and in adult PS offspring, and its receptor KISS1-R protein is similarly reduced in PS offspring at birth and adulthood. In adulthood, PS male offspring show significantly reduced sex hormone production, altered testicular morphology, reduced maturation of their supporting cells, and decreased expression of connexin 43 (CX43), leading to an altered sperm microenvironment and reduced sperm quality. In conclusion, prenatal stress leads to adverse changes in the KISS1 system in male offspring and decreased reproductive function.

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