PT - JOURNAL ARTICLE AU - María Arnoriaga-Rodríguez AU - Jordi Mayneris-Perxachs AU - Oren Contreras-Rodríguez AU - Aurelijus Burokas AU - Juan-Antonio Ortega-Sanchez AU - Gerard Blasco AU - Claudia Coll AU - Carles Biarnés AU - Anna Castells-Nobau AU - Josep Puig AU - Josep Garre-Olmo AU - Rafel Ramos AU - Salvador Pedraza AU - Ramon Brugada AU - Joan C Vilanova AU - Joaquín Serena AU - Jordi Barretina AU - Jordi Gich AU - Vicente Pérez-Brocal AU - Andrés Moya AU - Xavier Fernández-Real AU - Lluis Ramio-Torrentà AU - Reinald Pamplona AU - Joaquim Sol AU - Mariona Jové AU - Wifredo Ricart AU - Manuel Portero-Otin AU - Rafael Maldonado AU - Jose Manuel Fernández-Real TI - Obesity-associated deficits in inhibitory control are phenocopied to mice through gut microbiota changes in one-carbon and aromatic amino acids metabolic pathways AID - 10.1136/gutjnl-2020-323371 DP - 2021 Dec 01 TA - Gut PG - 2283--2296 VI - 70 IP - 12 4099 - http://gut.bmj.com/content/70/12/2283.short 4100 - http://gut.bmj.com/content/70/12/2283.full SO - Gut2021 Dec 01; 70 AB - Background Inhibitory control (IC) is critical to keep long-term goals in everyday life. Bidirectional relationships between IC deficits and obesity are behind unhealthy eating and physical exercise habits.Methods We studied gut microbiome composition and functionality, and plasma and faecal metabolomics in association with cognitive tests evaluating inhibitory control (Stroop test) and brain structure in a discovery (n=156), both cross-sectionally and longitudinally, and in an independent replication cohort (n=970). Faecal microbiota transplantation (FMT) in mice evaluated the impact on reversal learning and medial prefrontal cortex (mPFC) transcriptomics.Results An interplay among IC, brain structure (in humans) and mPFC transcriptomics (in mice), plasma/faecal metabolomics and the gut metagenome was found. Obesity-dependent alterations in one-carbon metabolism, tryptophan and histidine pathways were associated with IC in the two independent cohorts. Bacterial functions linked to one-carbon metabolism (thyX,dut, exodeoxyribonuclease V), and the anterior cingulate cortex volume were associated with IC, cross-sectionally and longitudinally. FMT from individuals with obesity led to alterations in mice reversal learning. In an independent FMT experiment, human donor’s bacterial functions related to IC deficits were associated with mPFC expression of one-carbon metabolism-related genes of recipient’s mice.Conclusion These results highlight the importance of targeting obesity-related impulsive behaviour through the induction of gut microbiota shifts.All data relevant to the study are included in the article or uploaded as supplementary information.