Citation: Danilenko LM, Skachilova SYa, Nadezhdin SV, Timokhina AS, Shcheblykina OV, Kotelnikova AS (2018) Pharmacological screening of substances with cardioprotective effect in the group of 3-oxypyridine derivatives. Research Results in Pharmacology 4(2): 125-131. https://doi. AbstractIntroduction: The search for new compounds with antihypoxic and cardioprotective effects among 3-oxypyridine derivatives is promising. Research objectives:To study the anti-hypoxic and cardioprotective effects of 3-oxypyridine derivatives. Materials and methods:The search for compounds with an antihypoxic effect was carried out on blood leukocytes of rats in in vitro. To simulate hypoxia, Oil for Tissue Culture (SAGE) was used, 500 µl of which was applied into wells over a growth medium in order to block gas exchange. The cardioprotective effect of 3-oxypyridine derivatives was studied in the model of coronary-occlusive myocardial infarction (30 minutes of ischemia, 90 minutes of reperfusion). The level of troponin I (Tn I) was determined as a biochemical marker of myocardial damage. Results and discussion:In the in vitro experiments, when culting white blood cells, the lead compound in the group of 3-oxypyridine derivatives was identified under code LKhT 21-16, which increases the number of viable cells in the presence of hypoxia, surpassing the reference drugs. When confirming the chemical structure of the lead compound, LHT 21-16, a high sensitivity of the NMR spectroscopy method was revealed.In studying the cardioprotective activity in the model of coronary-occlusive myocardial infarction compound LHT 21-16 exerted a marked cardioprotective effect when reducing the size of the necrotic zone and the level of biochemical marker Tn I. Conclusions:3-oxypiridine derivatives have antihypoxic and cardioprotective effects, which shows in a high number of surviving cells in the presence of hypoxia in the in vitro model, a reduced size of the necrotic zone and a reduced level of Tn I in the coronary-occlusive myocardial infarction.
This paper deals with the study of correction of L-NAME-induced endothelial dysfunction by means of 3-(2,2,2-trimethylhydrazinium) propionate derivatives. We have shown that 3-(2,2,2-trimethylhydrazinium) propionate and its derivatives reduced the expression of NOdeficient endothelial dysfunction induced by intraperitoneal administration of N-nitro L-arginine methyl ester (L-NAME), improved the parameters of endothelium-dependent vasodilation in response to administration of acetylcholine, and reduced the coefficient of endothelial dysfunction. It was revealed that the 5-hydroxinicotinate 3-(2,2,2-trimethylhydrazinium) potassium propionate has the most pronounced endothelioprotective effect.
The pathogenesis of preeclampsia is polyetiologic and not fully understood. One of the leading theories of pathogenesis is the theory of oxidative stress. Accordingly, the search for new drugs with antioxidant and antihypoxic effects is promising for the prevention and treatment of preeclampsia. Methods. The experiment was performed on 140 female white rats of Wistar strain weighing 250-300 g. The studied substances were administered within 7 days from 14 to 21 days of pregnancy. On the 21st day of pregnancy, functional tests were conducted. Results. Administration of 3-oxypiridine derivates in animals causes the expressed correction of pathological changes in experimental ADMA-like preeclampsia. There was a significant rise in systolic and diastolic blood pressure, respectively, the improvement of microcirculation in the placenta, restoration of endothelium NO-synthesis function, proteinuria reduction. Conclusion. The results of this study prove the future outlook of the use of 3-oxypiridine derivates for correction of functional changes in preeclampsia and substantiate the reasonability of further research in this direction.
; 2 АО «Всероссийский научный центр по изучению безопасности биологически активных веществ», Старая Купавна В эксперименте на крысах изучалась эффективность использования нового производного N-ацетил-6аминогексановой (ацексамовой) кислоты при заживлении ожоговых ран с одновременной оценкой динамики показателей оксидативного стресса на этапах раневого процесса-на 7-е, 14-е и 21-е сутки наблюдения. Животным трех групп (без обработки ран, с нанесением только мазевой основы и аппликацией 2%-ной мази нового производного N-ацетил-6-аминогексановой кислоты) после экспериментального моделирования термического ожога проводили планиметрическую оценку ран и определение уровней показателей оксидативного стресса-общей оксидантной (TOS) и общей антиоксидантной активности (TАS) сыворотки крови и гомогенатов регенерирующих тканей фотометрическим методом. Индекс оксидативного стресса рассчитывали как отношение показателей TOS к TAS. Проведенное исследование показало, что новое производное N-ацетил-6аминогексановой кислоты в виде 2%-ной мази обладает прорегенераторными свойствами, что проявилось в статистически достоверном ускорении заживления экспериментальных термических ожогов и снижении индекса оксидативного стресса в регенерирующих тканях и крови животных основной группы по сравнению с крысами контрольных групп. Установлено, что репаративный потенциал нового производного ацексамовой кислоты реализуется местно уже на стадиях воспаления и пролиферации регенерации кожного дефекта. Выявленное восстановление баланса метаболитов с оксидантными и антиоксидантными свойствами свидетельствует об уменьшении активности свободнорадикальных процессов, являющихся патогенетическими механизмами ожогового поражения. Полученные результаты служат патогенетическим обоснованием коррекции репаративного процесса с помощью нового производного ацексамовой кислоты и для разработки четких показаний, противопоказаний к его применению. Ключевые слова: ожоговая рана, производное N-ацетил-6-аминогексановой кислоты, оксидативный стресс, планиметрия.
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