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Article Publish Status: FREE
Abstract Title:

Dietary geraniol ameliorates intestinal dysbiosis and relieves symptoms in irritable bowel syndrome patients: a pilot study.

Abstract Source:

BMC Complement Altern Med. 2018 Dec 19 ;18(1):338. Epub 2018 Dec 19. PMID: 30567535

Abstract Author(s):

Fernando Rizzello, Chiara Ricci, Michela Scandella, Elena Cavazza, Elisabetta Giovanardi, Maria Chiara Valerii, Massimo Campieri, Antonietta Comparone, Luigia De Fazio, Marco Candela, Silvia Turroni, Enzo Spisni

Article Affiliation:

Fernando Rizzello

Abstract:

BACKGROUND: (Trans)-3,7-Dimethyl-2,6-octadien-1-ol, commonly called geraniol (Ge-OH), is an acyclic monoterpene alcohol with well-known anti-inflammatory and antimicrobial properties. Ge-OH is a non-toxic compound classified as Generally Recognized As Safe (GRAS) by the US Food and Drug Administration and the European Food Security Agency.

METHODS: Ge-OH was orally administered at a maximum daily dose of 8 mg kgbody weight for four weeks in a delayed release formulation capable of reaching the colon. Fecal microbiota and blood cytokines were analyzed before and after Ge-OH treatment, as well as IBS symptomatology by using Visual Analogue Scale (VAS-IBS).

RESULTS: The results show that orally administered Ge-OH is a powerful modulator of the intestinal microbial ecosystem, capable of leading to increased relative abundances of Collinsella and especially Faecalibacterium, a well-known health-promoting butyrate producer consistently found to be decreased in IBS patients. Moreover, Ge-OH strongly improved the clinical symptoms of colitis by significantly reducing the score recorded by the VAS-IBS questionnaire. Clinical improvement was associated with a significant reduction in the circulating MIP-1β, a chemokine found to be increased in several IBS patients.

CONCLUSION: Ge-OH could be a powerful component for food supplement targeted to the treatment of IBS patients.

TRIAL REGISTRATION: ISRCTN47041881 , retrospectively registered on 19th July 2018.

Study Type : Human Study

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Sayer Ji
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