Recent emerging research on intestinal microbiota and its contribution to the central nervous system during health and disease has attra cted significant attention.Age-related intestinal microbiota changes initiate brain aging and age-related neurodegenerative disorders.Aging is one of the critical predisposing risk factors for the development of neurodegenerative diseases.Maintaining a healthy gut microbiota is essential for a healthy body and aging,but dys biosis could initiate many chro nic diseases.Understanding the underlying mechanisms of gut microbiota alterations/dys biosis will help identify biomarkers for aging-related chro nic conditions.This review summarizes recent advances in micro biota-neurodegenerative disease research and will enhance our unde rstanding of gut microbiota dys biosis and its effects on brain aging.
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