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The Study of the Neuroprotective Effects of Carnosine in the Experimental Model of Focal Cerebral Ischemia/Reperfusion


Oxidative stress is one of the key factors responsible for brain tissue damage in ischemia; this points to the use of antioxidants under these conditions. One of the promising antioxidants for the therapy of ischemic stroke is a natural dipeptide carnosine. In this study the neuroprotective effect of dietary carnosine administration has been investigated in an experimental model of focal cerebral ischemia/reperfusion in Wistar rats. Animals received carnosine with a diet at a daily dose of 150 mg/kg for 7 days before transient occlusion of the middle cerebral artery (MCA), performed for 60 min. At 24 h after the onset of ischemia the effect of carnosine administration on the area of the infarct size was evaluated in animals. In brain tissue of animals the content of malondialdehyde (MDA), protein carbonyls (PC), total antioxidant capacity (TAC), total activity of superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) and glutathione transferase (GT), the content of isoprostanes and cytokines were measured. Treatment with carnosine significantly reduced the infarct size, increased TAC, and decreased the levels of MDA and isoprostanes in the brain tissue. Thus carnosine consumed prophylactically with the diet for 7 days before the ischemia induced by MCA occlusion in rats exhibited the direct neuroprotective effect, maintained high antioxidant activity of the brain tissue, reduced the level of oxidative damage markers (MDA and isoprostanes) but had no effect on the activity of antioxidant enzyme systems and production of cytokines in the brain tissue.

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Correspondence to A. A. Devyatov.

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Translated by A. Medvedev

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Devyatov, A.A., Fedorova, T.N., Stvolinsky, S.L. et al. The Study of the Neuroprotective Effects of Carnosine in the Experimental Model of Focal Cerebral Ischemia/Reperfusion. Biochem. Moscow Suppl. Ser. B 13, 55–59 (2019).

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  • brain ischemia
  • oxidative stress
  • inflammation
  • neuroprotection
  • carnosine