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. 2024 Dec 18;55(2):34. doi: 10.3892/ijmm.2024.5475

Figure 4.

Figure 4

Mechanisms of ovarian dysfunction caused by stress. Psychological stress affects ovarian function and inhibits the HPO axis by activating the HPA and SAM axes. This causes increased granulosa cell apoptosis, diminished oocyte quality and excessive activation of primordial follicles, culminating in decreased ovarian reserve. Meanwhile, psychological stress leads to disorder of the vascular endothelin system of the ovary, resulting in ovarian vasoconstriction and microcirculation disorder. Figure created with BioRender.com. HPA, hypothalamic-pituitary-adrenal; SAM, sympathetic-adrenal-medullary; HPO, hypothalamic-pituitary-ovarian; IDH, isocitrate dehydrogenase; FSHR, follicle-stimulating hormone; ROS, reactive oxygen species; BDNF, brain derived neurotrophic factor; GDF, growth differentiation factor; CCN, cyclin; ET-AR, ET-receptor types A.