Background: Caffeine and taurine, which possess neuro-modulatory activity happen to be consumed together as part of the constituents of energy drinks, could have beneficial effects and prevent neuronal deterioration in Parkinson's disease (PD).
Objective: This study aimed to investigate behavioral and neurochemical effects of these two agents in an animal model of PD at two time points to evaluate possible neuro-protective or neuro-modulatory effects.
Methods: Stereotaxic injection of 6-hydroxydopamine (6-OHDA) in rat striatum was used to model PD-like behavior in animals. Motor behavior was assessed by a characteristic rotation behavior response to the apomorphine challenge and dopamine levels in the striatum were quantified using HPLC-ED.
Results: A reduction in apomorphine induced rotations following administration of caffeine and/or taurine as compared to the untreated lesioned group (controls) was shown. Significant decreases in dopamine levels were also seen in the ipsilateral side of 6-OHDA group, this effect was not significantly reversed in caffeine and taurine treated groups. Treatments partially restored the content of DA levels in the lesioned striatum.
Conclusions: Current results demonstrated beneficial effects for the combination of caffeine and taurine in PD animal model, suggesting that consumption of both agents could be a new added therapeutic target for Parkinson's disease prevention and treatment.
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