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Биохимические факторы риска развития дисфункции эндотелия на фоне интоксикации сульфатом кадмия в эксперименте

Биохимические факторы риска развития дисфункции эндотелия на фоне интоксикации сульфатом кадмия в эксперименте

Abstract

Целью исследования было проведение экспериментов на крысах с парентеральным введением в течение 2 недель и 1 месяца различных дозировок сульфата кадмия. Установлено, что на фоне длительной интоксикации сульфатом кадмия развивается окислительный стресс и дисфункция эндотелия, биохимическими маркерами которых являются повышение содержания активных метаболитов кислорода (АМК) и нарушение антиокислительной системы (АОС): снижение активности супероксиддисмутазы (СОД) и компенсаторное повышение активности каталазы. В этих условиях отмечается и снижение содержания суммарных метаболитов оксида азота (NO) – основного вазодилатирующего фактора. Повреждение структуры клеточных мембран сопровождается снижением активности Nа, К-АТФ-азы в гомогенатах коркового и мозгового слоев почечной ткани и одновременным повышением активности гамма-глутамилтранспептидазы (ГГТП) в сыворотке крови у крыс с длительной интоксикацией сульфатом кадмия.

The aim of the study was to carry out experiments on rats with parenteral administration for 2 weeks and 1 month of different doses of cadmium sulfate. We found that during long-term toxicity of cadmium sulfate in experimental rats develop oxidative stress and endothelial dysfunction. Their biochemical markers are high content of active oxygen metabolites (AOM) and violation of the antioxidant system (AOS): reduced activity of superoxide dismutase (SOD) and catalase activity compensatory increase. Under these conditions, there is a decrease of the total content of nitric oxide (NO) – vasodilator main factor. Damage to the structure of cell membranes is accompanied by decreased activity of Na, K-ATPase in homogenates of cortical and medullar renal tissue layers and a simultaneous increase in the activity of gamma-glutamyl transpeptidase (GGT) in the blood serum of rats with cadmium sulfate intoxication long.

Keywords

ПЕРЕКИСНОЕ ОКИСЛЕНИЕ ЛИПИДОВ (ПОЛ), АНТИОКИСЛИТЕЛЬНАЯ СИСТЕМА (АОС), КАДМИЙ, ДИСФУНКЦИЯ ЭНДОТЕЛИЯ, LIPID PEROXIDATION (LPO), ANTIOXIDANT SYSTEM (AOS)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold