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Sodium butyrate alleviates lipopolysaccharide-induced endometritis in mice through inhibiting inflammatory response
- Guo, Jian, Wang, Yinan, Jiang, Peng, Yao, Hongmei, Zhao, Caijun, Hu, Xiaoyu, Cao, Yongguo, Zhang, Naisheng, Fu, Yunhe, Shen, Haiqing
- Microbial pathogenesis 2019 v.137 pp. 103792
- Western blotting, anaerobes, anti-inflammatory activity, bacteria, calving, dairy cows, digestive system, endometritis, enzyme-linked immunosorbent assay, eosin, fermentation, histone deacetylase, inflammation, interleukin-1beta, intraperitoneal injection, lipopolysaccharides, mice, myeloperoxidase, necrosis, neoplasms, neutrophils, protective effect, short chain fatty acids, signal transduction, sodium butyrate, therapeutics, tissues, transcription factor NF-kappa B, tumor necrosis factor-alpha, uterus
- Endometritis is commonly occurred in dairy cows after calving and results in a great deal of property damage. Although numerous studies have been performed to find the therapeutic agents for endometritis, the incidence of this disease remains high. Short-chain fatty acids (SCFAs), the major metabolic products of anaerobic bacteria fermentation in the gut, have been reported to exhibit anti-inflammatory properties. Therefore, the purpose of this study was to investigate the protective effects and mechanisms of sodium butyrate (SB) on lipopolysaccharide (LPS)-induced endometritis in mice. The mice were administered by intraperitoneal injection of SB at 1 h before LPS injection. 24 h later, the uterus tissues were collected. Hematoxylin and eosin (H & E) stained sections of uterus were used to determine the degree of the damage. Uterine myeloperoxidase (MPO) activity was used to analyze neutrophil granulocytes concentration. The levels of pro-inflammatory cytokines tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were measured by ELISA. The activation of the NF-κB signaling pathway proteins were detected by Western blot analysis. The results showed that SB significantly attenuated the pathological injury of the uterus tissues. SB also suppressed LPS-induced MPO activity and the production of inflammatory cytokines TNF-α and IL-1β. Furthermore, Western blot analysis showed that SB inhibited the activation of NF-κB signaling pathway. In addition, SB could inhibit histone deacetylases. In summary, SB protects against LPS-induced endometritis through HDAC inhibition.