肠道菌群
坏死性下垂
细菌
免疫学
生物
冲程(发动机)
微生物学
细胞生物学
程序性细胞死亡
遗传学
细胞凋亡
机械工程
工程类
作者
Hui Cai,Dezhe Qin,Yundie Liu,Xinrui Guo,Liquan Yang,Baohua Ma,Jinlian Hua,Sha Peng
标识
DOI:10.1002/mnfr.202300291
摘要
Scope Systemic heat stress (or heatstroke; HS) induces germ cell death and spermatogenesis disorders in men and male mammals. Also, it affects the immune environment of the circulatory system promoting gut inflammation and intestinal permeability, leading to pathogenic infection. In this study, the crosstalk between the gut and testis (gut‐testis axis) under HS is explored, by examining the effects of intestinal immune status on the health of the male reproductive system in mice. Methods and results A mouse model of systemic heat stress is established to investigate the effect of probiotics on testis health. The results reveal that pro‐inflammatory factor receptor activation pathway and pathogen infection response pathway are significantly upregulated in HS testes, leading to necroptosis, while pro‐inflammatory factor and endotoxin are detected locally in the intestine and then entered the blood. The study then uses probiotics to intervene in gut microbiota, which results in milder gut microbial changes, lower inflammatory responses in the HS gut, and less necroptosis in the HS testes. Conclusion Probiotics‐based remodeling of gut microbiota (GM) reduces the proliferation of abnormal bacteria and decreases the spread of gut‐derived inflammatory mediators into the blood circulation under long‐term systemic heat stress, which relieves inflammation on germ cells.
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