Emerging evidence suggests that gastrointestinal dysfunction and enteric nervous system pathology play a critical role in the early stages of Parkinson's disease. Considering the bidirectional relationship between gastrointestinal symptoms and mood disorders, this study aimed to elucidate the effects and possible mechanisms of action of vortioxetine, a serotonergic antidepressant, on the pathophysiological changes induced by rotenone in the enteroglial cells. α-synuclein, phosphorylated α-synuclein, TLR2, S100B and RAGE expression were detected in duodenal tissues of rats administered rotenone (2 mg/kg/day, s.
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