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Microbiota, 3‑Hydroxyanthranilic Acid and Dopaminergic Signalling: A New Pathway Linking Obesity to Attention Deficits
A multi-cohort human study with mouse and Drosophila validation implicates gut microbes and the tryptophan metabolite 3‑hydroxyanthranilic acid in modulating attention in obesity, suggesting microbiota-directed interventions could improve cognitive function.