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The purpose of this study is to investigate the effect of pectin, a kind of soluble dietary fiber, on clinical symptoms, gut microbiota and the immune status in patients with diarrhea-predominant irritable bowel syndrome
Patients were randomized to receive either pectin or placebo. Treatment consisted of 6 weeks supplementation with pectin (fiber group) or placebo (maltodextrin). We evaluated the clinical symptoms, gut microbiota and the immune markers in two groups.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| pectin | Experimental | a kind of soluble dietary fiber |
|
| Placebo | Placebo Comparator | maltodextrin |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Pectin | Dietary Supplement | Pectin (Andeli Ltd. Yantai, China), 24g/d for six weeks |
| |
| Measure | Description | Time Frame |
|---|---|---|
| efficacy: change of stool frequency, faecal form and clinical symptoms score | change from baseline in stool frequency, faecal form (Bristol stool scale) and clinical symptoms score (7-point Likert scale) at six weeks | six weeks after inclusion |
| Measure | Description | Time Frame |
|---|---|---|
| efficacy: gut microbiota | real-time PCR | six weeks after inclusion |
| efficacy: cytokine ratios | Cytokine production | six weeks after inclusion |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Tao Gao, M.D. | Nanjing PLA General Hospital | Principal Investigator |
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| ID | Term |
|---|---|
| D043183 | Irritable Bowel Syndrome |
| ID | Term |
|---|---|
| D003109 | Colonic Diseases, Functional |
| D003108 | Colonic Diseases |
| D007410 | Intestinal Diseases |
| D005767 | Gastrointestinal Diseases |
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| ID | Term |
|---|---|
| D010368 | Pectins |
| C008315 | maltodextrin |
| ID | Term |
|---|---|
| D001704 | Biopolymers |
| D011108 | Polymers |
| D046911 | Macromolecular Substances |
| D011134 | Polysaccharides |
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| maltodextrin |
| Dietary Supplement |
|
| D004066 | Digestive System Diseases |
| D002241 |
| Carbohydrates |
| D010936 | Plant Extracts |
| D028321 | Plant Preparations |
| D001688 | Biological Products |
| D045424 | Complex Mixtures |