Effect of Chicory-derived Inulin on Abdominal Sensations and Bowel Motor Function
- Conditions
- Functional Gastrointestinal Disorders
- Interventions
- Dietary Supplement: InulinDietary Supplement: Maltodextrine
- Registration Number
- NCT02727166
- Brief Summary
Subjects with gas-related complaints exhibit impaired handling of intestinal gas loads and we hypothesized that inulin would have a beneficial effect. Aim: to determine the effect of a prebiotic chicory-derived inulin-type fructan on the tolerance of intestinal gas. Methods. Placebo-controlled, parallel, randomized and double-blind trial study. Subjects with abdominal symptoms and reduced tolerance of intestinal gas (selected by a pre-test) will receive either inulin (8 g/d, n=18) or maltodextrin as a placebo (8 g/d, n=18) for 4 wk. A gas challenge test (4 h jejunal gas infusion at 12 mL/min while measuring abdominal symptoms and gas retention for 3 h) will be performed before and at the end of the intervention phase. Gastrointestinal symptoms and bowel habits (using daily questionnaires for 1 wk) and fecal bifidobacteria counts will be measured before and at the end of the intervention.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 67
- negative sensation of digestive well-being (score ≤ 1 on at least 2 of the 6 evaluation days, scored on a - 5 / +5 scale.
- poor tolerance of a gas challenge test (abdominal perception score ≥ 3, on a 0-6 scale, for at least three 15-min time points over the last 90 minutes of the 180-minute-long intestinal gas infusion test).
- antibiotic intake,
- exceptional diets,
- changes in dietary habits or intake of Ca supplements over the preceding month.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Inulin 8 g/d Inulin Mixture of oligo- and polysaccharides composed of fructose units connected by β (2→1) links with a total number of fructose and glucose units ranging between 2 and 70. maltodextrine 8 g/d Maltodextrine -
- Primary Outcome Measures
Name Time Method Perception of intestinal gas infusion 60 last min of the 180 min gas infusion test Effect of inulin intake (change from baseline with inulin versus placebo) on the tolerance of the gas challenge test, measured as the perception score of digestive sensations during the gas challenge test. At each time point, the highest score instead of the mean or cumulative scores will be computed for comparisons; these scores will be averaged over the last 60 min of the test in each subject; the differences between basal and intervention periods (inulin or placebo) will be calculated.
- Secondary Outcome Measures
Name Time Method Bowel habit 6 last days of intervention Effect of inulin intake (change from baseline with inulin versus placebo) on the number of bowel movements measured by daily questionnaires during 6 days.
Digestive well-being 6 last days of intervention Effect of inulin intake (change from baseline with inulin versus placebo) on digestive well-being measured by daily questionnaires on - 5 to + 5 score scales and averaged over 6 days.
Intestinal gas retention 60 last min of the 180 min gas infusion test Effect of inulin intake (change from baseline with inulin versus placebo) on the volume of gas retention (volume infused minus volume evacuated) measured as the average value over the last 60 min of the gas infusion test.
Abdominal discomfort 6 last days of intervention Effect of inulin intake (change from baseline with inulin versus placebo) on abdominal discomfort measured by daily questionnaires on 0 to 10 score scales and averaged over 6 days.