Effects of phytoestrogens combined with cold stress on sperm parameters and testicular proteomics in rats
2023
Panpan Zhang | Alifu Nurbiah | Sataer Meiheriguli | Yiming Adilijiang | Amuti Siyiti | Wenjing Ma | Binghua Wang
Phytoestrogens and cold negatively influence male fertility. However, the combined effects of these two factors on male reproduction remain unknown. Herein, we studied the changes of sperm parameters and identify potential biomarkers involved in testis of rats, which were intervened by phytoestrogens combined with cold stress. Male Sprague–Dawley rats were randomly divided into control and model groups. The rats in the model group were fed an estrogen diet and placed in a climate chamber [10 ± 2°C; humidity of 75 ± 5%] for 12 h/daily. When compared with the control group after 24 weeks, the rats in the model group showed increased food intake, urine and stool outputs, and higher estradiol and follicle-stimulating hormone levels. However, lower sperm concentration, motility, and viability, and reduced testosterone levels were detected. The epithelial cells of the seminiferous tubules and epididymal ducts presented morphological abnormalities. Proteomic analysis showed that 24 testicular proteins were upregulated and 15 were downregulated. The identified proteins were involved in reticulophagy and stress response. Our findings suggest that the phytoestrogens combined with cold stress had negative effects on the reproductive function of male rats and provide the basis for the establishment of “course simulation” type of oligospermia animal model.
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