Correcting Gut Microbial Dopamine Imbalance to Support Systemic Dopaminergic Function

**Background and Rationale** The gut-brain axis has emerged as a critical bidirectional communication pathway that significantly influences neurological health and disease progression. In Parkinson's disease (PD), mounting evidence suggests that the enteric nervous system and gut microbiome play fundamental roles in both disease initiation and progression. The discovery that certain gut bacteria can synthesize, metabolize, and respond to neurotransmitters, including dopamine, has opened new ave...