摘要
Background:Diarrhea-predominant irritable bowel syndrome(IBS-D)is a common functional gastrointestinal disease,that significantly impacts the quality of life and social interactions of patients,and also consumes a significant amount of medical resources.Xi-Feng-Hua-Shi(XFHS)granule is an empirical formula developed by Professor Yao-Zhou Tian,a famous TCM doctor in Jiangsu Province.Clinical experience has shown that XFHS granules are effective at relieving the symptoms of IBS-D patients.Therefore,this study used 16S rDNA sequencing to determine the species and richness of microflora in order to explore the overall efficacy and changes in the intestinal microflora of IBS-D patients after treatment with XFHS granules,and to further understand the mechanism of drug action as a potential new therapeutic method for the clinical treatment of IBS-D.Methods:A total of 66 IBS-D patients who were treated at Jiangsu Provincial Hospital of Integrated Traditional Chinese and Western Medicine from June 2021 to January 2022 were recruited and randomly divided into a reatment group and a control group.The treatment group was given XFHS granules and the control group was given placebo granules for 4 weeks.Traditional Chinese medicine(TCM)syndrome scores of patients before and after treatment were recorded,and fresh fecal samples of some patients before and after treatment were collected to analyze the changes of intestinal flora by 16S rDNA sequencing method.Results:The effective rate in the treatment group was 92.86%,which was significantly higher than the control group(P<0.05).The bacterial diversity of IBS-D patients did not change significantly after treatment with XFHS granules,but the species composition analysis showed that the abundance of Firmicutes,Proteobacteria and Cyanobacteria decreased,while the abundance of Bacteroidetes,Actinobacteria and Bifidobacteria increased.Conclusion:XFHS granules can effectively improve the clinical symptoms of IBS-D patients,and its therapeutic effect may be related to regulating the structure and abundance of intestinal flora.
基金
This work was supported by Social Development Project of Jiangsu Province(No.BE2022817).
