Diarrhea-predominant irritable boewl syndrome(IBS-D) seriously affect the quality of life in patients. Clinically, it is effective to apply therapeutic method of clearing heat and promoting diuresis to the common syndrome of dampness-heat. Dysbiosis of intestinal microbiota is closely related to the immune imbalance and intestinal mucosal barrier injury. C1orf106/CYTH-1/ARF6 signal pathway, which derive from intestinal micro environment changes,is the mainly cause of intestinal mucosal barrier injury, and this is may be the common pathogenesis of dampness-heat syndrome in IBS-D . Based on the clinic, the project is to study the effect and mechanism of Chinese compound formula of clearing heat and promoting dieresis in modulating intestinal microbiota dysbiosis, repairing intestinal mucosal barrier and reconstructing intestinal microenvironment. With the combination of metagenomics and metabonomics, the study compare the differences of co-metabolites of intestinal microbiota and host within the healthy people, IBS-D patients with dampness-heat syndrome, to explore the relevance between intestinal flora and host co-metabolites. Furthermore, the experimental study is to clarify the drug targets via C1orf106/ CYTH-1/ARF6 signal pathway.Through the study of association between dampness-heat syndrome in IBS-D and intestinal microbiota, it is of important academic significance to reveal the Chinese theory intension of "homotherapy for heteropathy ".
Age range
18 Years – 75 Years
Sex
ALL
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
IBS symptom severity (IBS-SSS)scale
Timeframe: Change from Baseline disease activity at 4weeks
The Clinical Global Impression of severity Scale ( CGI-S)
Timeframe: 4 weeks