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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2014; 60(3): 11-17

Induction of oxidative stress in heart mitochondria in brain focal ischemia-reperfusion and protective effect of ecdysterone

Sharipov RR, Kotsiuruba AV, Kop"iak BS, Sahach VF.

    O.O. Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine


Based on the fact that the acute phase of ischemic stroke is accompanied by the development of heart damage, manifestations of which are oxidative stress, morphological changes in the myocardium, in the model of brain focal ischemia – reperfusion, we investigated the oxidative stress in rat heart mitochondria and possible mechanisms of cardioprotective effect of ecdysterone. Under the conditions of brain focal ischemia – reperfusion, there is an increase rate of the generation of reactive oxygen species: superoxide (*O2 -) and hydroxyl radicals (*OH), pools of stable hydrogen peroxide (H2O2), accumulate products of lipid peroxidation (diene conjugates and malonic dialdehyde), as a result of activation xanthine oxidase (marker uric acid), lipooxygenase (marker leukotriene C4) and cyclooxygenase (marker tromboksane B2) ways of *O2 - generating. In animals that received ecdysterone for 18 days, under conditions of brain focal ischemia – reperfusion, the rate of reactive oxygen species generation and the pools of lipid peroxidation products were decreased, and the survival of animals was increased. The obtained results support the development of oxidative stress in heart mitochondria of rats, powerful antiradical properties of ecdysterone, its cardioprotective effect, in conditions of brain focal ischemia - reperfusion.

Keywords: focal ischemia-reperfusion of the head brain, cerebrocardial syndrome, mitochondria of the heart, oxidative stress


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