The Effects of Adenosinergic Modulation on Cytokine Levels in a Pentylenetetrazole-Induced Generalized Tonic-Clonic Seizure Model

Objective: It has been suggested that the adenosinergic system and cytokines play a role in the pathogenesis of epilepsy. Although the role of the adenosinergic system in the modulation of seizure activity is well known, the mechanism of this modulation needs to be described in detail. We performed this study to determine the contribution of the proinflammatory cytokines to the generalized seizure activity during adenosine and caffeine treatment. Methods: We induced generalized tonic-clonic seizures with the administration of 60 mg/kg pentylenetetrazole (PTZ) in male Wistar Albino rats. Adenosine (500 mg/kg) or caffeine (5 mg/kg) was administered before PTZ injection. We monitored seizure activity and then determined the TNF-α, IL-1β, and IL-6 levels in the cortical and thalamic brain regions of rats by ELISA. Results: Adenosine pretreatment significantly extended seizure latency (p p > 0.05) compared to the control group. Whereas adenosine pretreatment decreased brain TNF-α, IL-1β, and IL-6 levels significantly (p p > 0.05). Conclusion: Our results show that there is a clear relation between adenosinergic system and brain tissue cytokine levels. Our findings indicated that TNF-α, IL-1β, and IL-6 participate in the pathogenesis of generalized seizures, and the inhibition of TNF-α, IL-1β, and IL-6 with adenosinergic modulation may decrease seizure severity.
Neuroimmunomodulation

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