Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial

Background. Probiotic oral intake, via modulation of the microbiota-gut-brain axis, can impact brain activity, mood, and behavior; therefore, it may be beneficial against psychological distress and anxiety disorders. Inflammatory cytokines can influence the onset and progression of several neurodege...

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Main Authors: P. Gualtieri, M. Marchetti, G. Cioccoloni, A. De Lorenzo, L. Romano, A. Cammarano, C. Colica, R. Condò, L. Di Renzo
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2020/2346126
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author P. Gualtieri
M. Marchetti
G. Cioccoloni
A. De Lorenzo
L. Romano
A. Cammarano
C. Colica
R. Condò
L. Di Renzo
author_facet P. Gualtieri
M. Marchetti
G. Cioccoloni
A. De Lorenzo
L. Romano
A. Cammarano
C. Colica
R. Condò
L. Di Renzo
author_sort P. Gualtieri
collection DOAJ
description Background. Probiotic oral intake, via modulation of the microbiota-gut-brain axis, can impact brain activity, mood, and behavior; therefore, it may be beneficial against psychological distress and anxiety disorders. Inflammatory cytokines can influence the onset and progression of several neurodegenerative mood disorders, and the IL-1β rs16944 SNP is related to high cytokine levels and potentially affects mood disorders. The aim of this study was to examine the combined effect of IL-1β polymorphism and probiotic administration in mood disorder phenotypes in the Italian population. Methods. 150 subjects were randomized into two different groups, probiotic oral suspension group (POSG) and placebo control group (PCG), and received the relative treatment for 12 weeks. Psychological profile assessment by Hamilton Anxiety Rating Scale (HAM-A), Body Uneasiness Test (BUT), and Symptom Checklist 90-Revised (SCL90R) was administered to all volunteers. Genotyping was performed on DNA extracted from salivary samples. Results. After 12 weeks of intervention, a significant reduction of HAM-A total score was detected in the POSG (p<0.01), compared to the PCG. Furthermore, IL-1β carriers have moderate risk to develop anxiety (OR=5.90), and in POSG IL-1β carriers, we observed a reduction of HAM-A score (p=0.02). Conclusions. Consumption of probiotics mitigates anxiety symptoms, especially in healthy adults with the minor A allele of rs16944 as a risk factor. Our results encourage the use of probiotics in anxiety disorders and suggest genetic association studies for psychobiotic-personalized therapy.
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spelling doaj-art-f41c936c4eb24ae1a3e87f5013bfa1bb2025-08-20T02:21:43ZengWileyMediators of Inflammation0962-93511466-18612020-01-01202010.1155/2020/23461262346126Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical TrialP. Gualtieri0M. Marchetti1G. Cioccoloni2A. De Lorenzo3L. Romano4A. Cammarano5C. Colica6R. Condò7L. Di Renzo8Section of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalySection of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalyPhD School of Applied Medical-Surgical Sciences, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalySection of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalySection of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalyDepartment of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalyCasa di Cura Madonna dello Scoglio S.r.l. e SADEL di Salvatore Baffa S.p.a., Cotronei (KR), ItalyDepartment of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalySection of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, ItalyBackground. Probiotic oral intake, via modulation of the microbiota-gut-brain axis, can impact brain activity, mood, and behavior; therefore, it may be beneficial against psychological distress and anxiety disorders. Inflammatory cytokines can influence the onset and progression of several neurodegenerative mood disorders, and the IL-1β rs16944 SNP is related to high cytokine levels and potentially affects mood disorders. The aim of this study was to examine the combined effect of IL-1β polymorphism and probiotic administration in mood disorder phenotypes in the Italian population. Methods. 150 subjects were randomized into two different groups, probiotic oral suspension group (POSG) and placebo control group (PCG), and received the relative treatment for 12 weeks. Psychological profile assessment by Hamilton Anxiety Rating Scale (HAM-A), Body Uneasiness Test (BUT), and Symptom Checklist 90-Revised (SCL90R) was administered to all volunteers. Genotyping was performed on DNA extracted from salivary samples. Results. After 12 weeks of intervention, a significant reduction of HAM-A total score was detected in the POSG (p<0.01), compared to the PCG. Furthermore, IL-1β carriers have moderate risk to develop anxiety (OR=5.90), and in POSG IL-1β carriers, we observed a reduction of HAM-A score (p=0.02). Conclusions. Consumption of probiotics mitigates anxiety symptoms, especially in healthy adults with the minor A allele of rs16944 as a risk factor. Our results encourage the use of probiotics in anxiety disorders and suggest genetic association studies for psychobiotic-personalized therapy.http://dx.doi.org/10.1155/2020/2346126
spellingShingle P. Gualtieri
M. Marchetti
G. Cioccoloni
A. De Lorenzo
L. Romano
A. Cammarano
C. Colica
R. Condò
L. Di Renzo
Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial
Mediators of Inflammation
title Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial
title_full Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial
title_fullStr Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial
title_full_unstemmed Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial
title_short Psychobiotics Regulate the Anxiety Symptoms in Carriers of Allele A of IL-1β Gene: A Randomized, Placebo-Controlled Clinical Trial
title_sort psychobiotics regulate the anxiety symptoms in carriers of allele a of il 1β gene a randomized placebo controlled clinical trial
url http://dx.doi.org/10.1155/2020/2346126
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