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Влияние эндотелиальной дисфункции на ремоделирование сосудов и сердца в условиях действия хронического психосоциального стресса

Влияние эндотелиальной дисфункции на ремоделирование сосудов и сердца в условиях действия хронического психосоциального стресса

Abstract

Исследовали влияние эндотелиальной дисфункции на процессы ремоделирования сосудов и сердца в условиях действия хронического психосоциального стресса. В качестве объекта, подверженного действию хронического стресса, обследовали машинистов магистральных локомотивов, в качестве контроля здоровых добровольцев. Полученные результаты свидетельствуют, что хроническое действие стрессоров сопровождается активацией гипоталамо-гипофизарно-надпочечниковой системы с увеличением содержания в крови гормонов стресса (адренокортико-тропного гормона, кортизола, кортикостерона). На этом фоне происходит развитие эндотелиальной дисфункции с нарушением секреции основных вазорегуляторов: угнетением продукции системы оксида азота и активацией производства эндотелина 1. Указанные процессы способствуют запуску системных механизмов ремоделирования сосудов (в том числе сосудов головного мозга) и сердца. Процессы ремоделирования приводят к снижению кровотока по сосудам головного мозга, способствуют субклиническому поражению органов-мишеней (увеличению толщины комплекса интима-медиа общих сонных артерий, увеличению массы миокарда левого желудочка), что повышает риск развития цереброкардиальных событий.Effect of endothelial dysfunction on cardiac and vascular remodeling in the condition of chronic psycho-social stress was explored. As a model of the stress effects railroad engineers were examined. As a controls, healthy volunteers were examined. These results indicate that the effect of chronic stress is accompanied by activation of the hypothalamic-pituitaryadrenal axis with an increase levels of stress hormones in the blood (adrenocorticotropic hormone, cortisol, corticosterone). Against this background, the development of endothelial dysfunction with the violation of secretion basic vazo-regulators like the inhibition of nitric oxide system's production and activation of endothelin-1 production take place. These processes facilitate the activation system mechanisms of vascular (including cerebral vessels) and cardiac remodeling. Remodeling processes lead to a reduction of blood flow through the brain vessels and subclinical organ damage (an increased intima-media thickness of the common carotid arteries, an increased left ventricular mass). This increases the risk of cerebrovascular events.

Keywords

ХРОНИЧЕСКИЙ ПСИХОСОЦИАЛЬНЫЙ СТРЕСС,СТРЕССОРНЫЕ ГОРМОНЫ,ЭНДОТЕЛИАЛЬНАЯ ДИСФУНКЦИЯ,ЭНДОТЕЛИН 1,РЕМОДЕЛИРОВАНИЕ,CHRONIC PSYCHOSOCIAL STRESS,STRESS HORMONES,ENDOTHELIAL DYSFUNCTION,ENDOTHELIN 1,REMODELING

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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