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Impact of synbiotic on gut microbiota and social behaviors associated with neurodevelopmental disorders.

Grant number: 18/26645-1
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 15, 2019
Effective date (End): September 14, 2020
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Principal researcher:Katia Sivieri
Grantee:Ana Luiza Rocha Faria Duque
Supervisor abroad: Mauro Costa-Mattioli
Home Institution: Faculdade de Ciências Farmacêuticas (FCFAR). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Research place: Baylor College of Medicine, United States  
Associated to the scholarship:17/01157-1 - Effect of Psychobiotic on Autism Spectrum Disorder, BP.DR


A large body of preclinical literature supports the notion of a bidirectional communication system linking the gut and the brain, known as the gut-microbiota-brain axis. Recent evidence indicates that gut microbes can modulate central nervous system (CNS)-driven behaviors in a very powerful way. Thus, the administration of probiotics is emerging as novel potential non-invasive therapeutic alternative to treat a large number of neurological disorders. Specifically, studies have recently found that treatment with the probiotic species Lactobacillus (L.) reuteri reverses the social deficits in several mouse models of Autism. However, the other symptoms associated with the disease, like language and repetitive behaviors are not affected by the treatment with L. reuteri. The aim of this work is to evaluate the effect L. reuteri in combination with Vivinal® GOS, a probiotic strain which has been shown to modulate the gut microbiota and reverse the social deficits, in a genetic model of ASD (Shank3B-/- mice). Briefly, Shank3B-/- mice will be divided into 5 treatment groups: 1: WT control mice, 2: Shank3B-/- mice treated with vehicle; 3: Shank3B-/- mice treated with L. reuteri; 4: Shank3B-/- mice treated with Vivinal® GOS; 5: Shank3B-/- mice treated with both L. reuteri and Vivinal® GOS. We will measure whether the different treatments: a) alter the gut microbiota composition of Shank3B-/- mice by 16S rRNA gene sequence analysis, b) reverse the autism symptoms (social, language and repetitive behaviors) in Shank3B-/- mice and c) alter oxytocin levels in Shank3B-/- mice. The knowledge gained in this study will help to define the basic molecular & cellular mechanisms underlying Autism. Moreover, it could also lead to the development of new probiotic-based non-invasive treatments for patients suffering from Autism and related disorders.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DUQUE, ANA LUIZA ROCHA FARIA; DEMARQUI, FERNANDA MANAIA; SANTONI, MARIANA MARCHI; ZANELLI, CLESLEI FERNANDO; ADORNO, MARIA ANGELA TALLARICO; MILENKOVIC, DRAGAN; MESA, VICTORIA; SIVIERI, KATIA. Effect of probiotic, prebiotic, and synbiotic on the gut microbiota of autistic children using an in vitro gut microbiome model. Food Research International, v. 149, NOV 2021. Web of Science Citations: 1.

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