Article (Scientific journals)
Constipation Mitigation by Rhubarb Extract in Middle-Aged Adults Is Linked to Gut Microbiome Modulation: A Double-Blind Randomized Placebo-Controlled Trial
Neyrinck, Audrey; Rodriguez, Julie; Taminiau, Bernard et al.
2022In International Journal of Molecular Sciences, 23 (23), p. 14685
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Keywords :
middle-aged; constipation; microbiota; butyrate-producing bacteria; Lachnospiraceae; Inorganic Chemistry; Organic Chemistry; Physical and Theoretical Chemistry; Computer Science Applications; Spectroscopy; Molecular Biology; General Medicine; Catalysis
Abstract :
[en] Gut microbiota alterations are intimately linked to chronic constipation upon aging. We investigated the role of targeted changes in the gut microbiota composition in the relief of constipation symptoms after rhubarb extract (RE) supplementation in middle-aged volunteers. Subjects (95% women, average 58 years old) were randomized to three groups treated with RE at two different doses determined by its content of rhein (supplementation of 12.5 mg and 25 mg per day) vs. placebo (maltodextrin) for 30 days. We demonstrated that daily oral supplementation of RE for 30 days was safe even at the higher dose. Stool frequency and consistency, and perceived change in transit problem, transit speed and difficulty in evacuating, investigated by validated questionnaires, were improved in both groups of RE-treated volunteers compared to placebo. Higher abundance of Lachnospiraceae (mainly Roseburia and Agathobacter) only occurred after RE treatment when present at low levels at baseline, whereas an opposite shift in short-chain fatty acid (SCFA) levels was observed in both RE-treated groups (increase) and placebo (decrease). Fecal Lachnospiraceae and SCFA were positively correlated with stool consistency. This study demonstrates that RE supplementation promotes butyrate-producing bacteria and SCFA, an effect that could contribute to relieving chronic constipation in middle-aged persons.
Research Center/Unit :
FARAH. Santé publique vétérinaire - ULiège
Disciplines :
Food science
Author, co-author :
Neyrinck, Audrey;  Licensee MDPI, Basel, Switzerland
Rodriguez, Julie;  Licensee MDPI, Basel, Switzerland
Taminiau, Bernard  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Santé publique vétérinaire ; Licensee MDPI, Basel, Switzerland
Herpin, Flore;  Licensee MDPI, Basel, Switzerland
Cani, Patrice ;  Licensee MDPI, Basel, Switzerland
Daube, Georges  ;  Université de Liège - ULiège > Département de sciences des denrées alimentaires (DDA) > Microbiologie des denrées alimentaires ; Licensee MDPI, Basel, Switzerland
Bindels, Laure ;  Licensee MDPI, Basel, Switzerland
Delzenne, Nathalie ;  Licensee MDPI, Basel, Switzerland
Language :
English
Title :
Constipation Mitigation by Rhubarb Extract in Middle-Aged Adults Is Linked to Gut Microbiome Modulation: A Double-Blind Randomized Placebo-Controlled Trial
Publication date :
24 November 2022
Journal title :
International Journal of Molecular Sciences
ISSN :
1661-6596
eISSN :
1422-0067
Publisher :
MDPI AG
Volume :
23
Issue :
23
Pages :
14685
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
SPW DGO6 - Service Public de Wallonie. Economie, Emploi, Recherche [BE]
Available on ORBi :
since 08 December 2022

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