Mechanisms of chronic stress influence on the brain hemodynamic in persons with employment-related chronic stress

Lutskyi I.S.; Evtuchenko S.K.; Skoromets A.A.

doi:https://doi.org/10.17116/jnevro202012005167

Lutskyi I.S.

Gorky Donetsk National Medical University, Donets

Evtuchenko S.K.

Gorky Donetsk National Medical University, Donets

Skoromets A.A.

Pavlov First Saint Petersburg State Medical University

ORCID: 0000-0002-5884-3110

Mechanisms of chronic stress influence on the brain hemodynamic in persons with employment-related chronic stress

Authors:

Lutskyi I.S., Evtuchenko S.K., Skoromets A.A.

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Journal: S.S. Korsakov Journal of Neurology and Psychiatry. 2020;120(5): 67‑72

DOI: 10.17116/jnevro202012005167

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To cite this article:

Lutskyi IS, Evtuchenko SK, Skoromets AA. Mechanisms of chronic stress influence on the brain hemodynamic in persons with employment-related chronic stress. S.S. Korsakov Journal of Neurology and Psychiatry. 2020;120(5):67‑72. (In Russ.)
https://doi.org/10.17116/jnevro202012005167

Подписка 2026 Журнал неврологии и психиатрии им. С.С. Корсакова (S.S. Korsakov Journal of Neurology and Psychiatry)

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Abstract:

OBJECTIVE

To discuss the mechanisms by which chronic psychosocial stress (CPSS) affects the parameters of cerebral blood flow.

MATERIAL AND METHODS

One hundred and sixty locomotive machinists (LM) and machinist assistants (MA), whose profession is rated as one of the most stressful, were enrolled in this study. The control group consisted of 100 healthy volunteers. The activity of the stressor system was assessed by the levels of stress hormones in serum (ACTH, cortisol, adrenaline). The functional state of the endothelium was assessed by secretion of nitric oxide and endothelin-1. Doppler ultrasound was used to measure the linear velocity of blood flow in the cerebral vessels, the size of the intima-media complex of the common carotid artery, and the results of the endothelium-dependent vasodilation. Blood pressure was monitored daily.

RESULTS

The action of CPSS is accompanied by the persistent increase in the serum cortisol levels. This process contributes to the development of vasoconstriction with the initiation of endothelial dysfunction with impaired production of nitric oxide and increased secretion of endothelin-1 and the formation of arterial hypertension. With progression of these processes, there is a decrease in cerebral blood flow. The observed increase in the size of the intima-media complex of the common carotid artery correlates with the severity of arterial hypertension and endothelial dysfunction.

CONCLUSIONS

CPSS leads to a decrease in cerebral blood flow and subsequent development of endothelial dysfunction and arterial hypertension, which are related to high levels of stress hormones circulating in the blood. These processes lead to functional failure of the vascular endothelium.

Keywords:

stress hormones

chronic psychosocial stress

cerebral blood flow

endothelial dysfunction

arterial hypertension

Authors:

Lutskyi I.S.

Gorky Donetsk National Medical University, Donets

Evtuchenko S.K.

Gorky Donetsk National Medical University, Donets

Skoromets A.A.

Pavlov First Saint Petersburg State Medical University

ORCID: 0000-0002-5884-3110

Received:

16.09.2019

Accepted:

06.11.2019

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References:

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