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Synthetic Analogs of 6-Bromohypaphorine, a Natural Agonist of Nicotinic Acetylcholine Receptors, Reduce Cardiac Reperfusion Injury in a Rat Model of Myocardial Ischemia

  • BIOCHEMISTRY, BIOPHYSICS, AND MOLECULAR BIOLOGY
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Abstract

The data available to date indicate that the activation of nicotinic acetylcholine receptors (nAChR) of α7 type can reduce heart damage resulting from ischemia and subsequent reperfusion. We have studied two new synthetic D-analogs of 6-bromohypaphorine, which are selective agonists of α7 nAChR, in a rat model of myocardial ischemia. Acute myocardial infarction in animals was induced by occlusion of the left coronary artery with its subsequent reperfusion under mechanical lung ventilation. It was found that one of the analogs was more active, and treatment with it at the onset of reperfusion statistically reduced infarct size. This analog also prevented changes in the concentration of potassium and sodium ions in the blood, occurring during occlusion/reperfusion injury. The data obtained indicate that hypaphorine analogs are promising for the development of drugs that reduce the adverse effects of myocardial infarction.

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Funding

The study was financially supported by the Russian Science Foundation (project no. 21-14-00316).

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Correspondence to Yu. N. Utkin.

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Conflict of interest. The authors declare that they have no conflicts of interest.

Statement on the welfare of animals. All procedures were approved by the Commission for Control over the Housing and Use of Laboratory Animals of the Pushchino Branch of Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (protocol-application no. 766/20).

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Translated by M. Batrukova

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Shaykhutdinova, E.R., Kondrakhina, A.E., Ivanov, I.A. et al. Synthetic Analogs of 6-Bromohypaphorine, a Natural Agonist of Nicotinic Acetylcholine Receptors, Reduce Cardiac Reperfusion Injury in a Rat Model of Myocardial Ischemia. Dokl Biochem Biophys 503, 47–51 (2022). https://doi.org/10.1134/S1607672922020132

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  • DOI: https://doi.org/10.1134/S1607672922020132

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