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  • Küçük Resim Yok
    Öğe
    Modulatory effects of neuropeptides on pentylenetetrazol-induced epileptic seizures and neuroinflammation in rats
    (Assoc Medica Brasileira, 2019) Kilinc, Erkan; Gunes, Handan
    OBJECTIVE: We aimed to explore the effects of neuropeptides ghrelin, obestatin, and vasoactive intestinal peptide (VIP) on seizures and plasma concentrations of neuroinflammation biomarkers including calcitonin gene-related peptide (CGRP), substance-P (SP), and interleukin-1 beta (IL-1 beta) in pentylenetetrazol-induced seizures in rats. METHODS: Ghrelin (80 mu g/kg), obestatin (1 mu g/kg), VIP (25 ng/kg) or saline were administered to rats intraperitoneally 30 min before pentylenetetrazole (PTZ, 50 mg/kg) injections. Stages of epileptic seizures were evaluated by Racine's scale, and plasma CG RP, SP, and IL-1 beta concentrations were measured using ELISA. RESULTS: Both obestatin and VIP shortened onset-time of generalized tonic-clonic seizure, respectively, moreover VIP also shortened the onset-time of first myoclonic-jerk induced by PTZ. While PTZ increased plasma CG RP, SP and IL-1 beta concentrations, ghrelin reduced the increases evoked by PTZ. While VIP further increased PTZ-evoked CG RP levels, it diminished IL-1 beta concentrations. However, obestatin did not change CGRP, SR and IL-1 beta concentrations. CONCLUSION: Our results suggest that ghrelin acts as an anticonvulsant, obestatin acts as a proconvulsant, and VIP has dual action on epilepsy. Receptors of those neuropeptides may be promising targets for epilepsy treatment.
  • Küçük Resim Yok
    Öğe
    Regulatory Neuropeptide Mechanisms in Pentylenetetrazol-Induced Epileptic Seizures in Rats
    (WILEY, 2018) Kilinc, Erkan; Gunes, Handan
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