Determining the protective effects of Ma-Mu-Ran Antidiarrheal Capsules against acute DSS-induced enteritis using 16S rRNA gene sequencing and fecal metabolomics

Ma-Mu-Ran Antidiarrheal Capsules(MMRAC)is traditional Chinese medicine that has been used to treat diarrhea caused by acute enteritis(AE)and bacillary dysentery in Xinjiang(China)for many years.However,the potential therapeutic mechanism of MMRAC for AE and its regulatory mechanism on host metabolism is unclear.This study used fecal metabolomics profiling with GC/MS and 16S rRNA gene sequencing analysis to explore the potential regulatory mechanisms of MMRAC on a dextran sulfate sodium salt(DSS)-induced mouse model of AE.Fecal metabolomics-based analyses were performed to detect the differentially expressed metabolites and metabolic pathways.The 16S rRNA gene sequencing analysis was used to assess the altered gut microbes at the genus level and for functional prediction.Moreover,Pearson correlation analysis was used to integrate differentially expressed metabolites and altered bacterial genera.The results revealed that six intestinal bacteria and seven metabolites mediated metabolic disorders(i.e.,metabolism of amino acid,carbohydrate,cofactors and vitamins,and lipid)in AE mice.Besides,ten altered microbes mediated the differential expression of eight metabolites and regulated these metabolisms after MMRAC administration.Overall,these findings demonstrate that AE is associated with metabolic disorders and microbial dysbiosis.Further,we present that MMRAC exerts protective effects against AE by improving host metabolism through the intestinal flora.

Clinical and Experimental Study on Zhixie Buye Mixture (止泻补液合剂) in Treating Infantile Diarrhea Complicated with Dehydration

Objective: To observe the therapeutic effect of Zhixie Buye mixture (止泻补液合剂, ZXBYM) on infantile diarrhea patients with mild or middle degree of dehydration. Methods: Controlled observation method was adopted in the clinical and experimental study. Results: There was no significant difference in the treatment of dehydration between the ZXBYM group and oral rehydration solution (ORS) group (P>0.05), at the same time it was more effective for ZXBYM to eliminate such symptoms as vomiting and abdominal distension (P<0.01). In addition, it was confirmed that the ion concentration of sodium, potassium, chlorine, glucose and osmotic pressure in the mixture was similar to those in ORS. Animal experiment showed that ZXBYM has the effect of rat intestine peristalsis suppression and water absorption promotion in colon. And there was statistical difference in antidiarrhea effect between the mixture and ORS (P<0.01). Conclusion: ZXBYM is an effective mixture in the treatment of diarrhea with dehydration. It has a good prospect for the development and application.