Hormonal mechanisms of the regulation human’s processes adaptation to extreme influences of the environment
- Authors: Masurov V.I.1,2, Shustov S.В.1,2
-
Affiliations:
- St. Petersburg Medical Academy of Postgraduate educations
- Military Medical Academy of the name of Kirov S.M
- Issue: Vol 8, No 1 (2008)
- Pages: 29-39
- Section: Articles
- Published: 08.03.2008
- URL: https://journals.eco-vector.com/MAJ/article/view/693016
- ID: 693016
Cite item
Abstract
The research of the hormonal regulation during the adaptation of healthy men to extreme conditions of high mountains, physical loadings, the longtime hypodinamia, the position of orthostasis, stay in high breadthes (wintering in Antarctica) is lead. The increase of activity of hypophysis-adrenal and renin-aldosterone systems, and also a level of insulin, was observed almost at all kinds of stress influences. The exception was made with the antiorthostatic test during which the levels of cortisole, aldosterone and insulin were reduced at the majority of examinees. The production of somatotropic hormone (STH) was increased under influence of the hyperdinamia and conditions of high mountains at the examinees, the decrease in level of STH was observed in polar explorers and at the longtime hypodinamia.
The initial stages of human adaptation to extreme influences of the environment is provided with the hormones of adrenal glands, and also insulin and STH. The hypophysis-gonad system replies to a stress with the deferred reaction. Interrelations between hormonal and hemodynamic parameters are revealed. The increase of the hormonal production (cortisol, aldosterone, STH and insulin) was accompanied by the increase in the intimate emission and the general peripheral resistance. The normalization of the hormonal regulation and hemodynamics was observed at the majority of men during the rehabilitation after the stay on high mountains and the orthostatic test. The long and numerous stay in conditions of a climate of Antarctica was accompanied with the early development of an arterial hypertensia and ischemic illness of heart in polar explorers.
Keywords
About the authors
V. I. Masurov
St. Petersburg Medical Academy of Postgraduate educations; Military Medical Academy of the name of Kirov S.M
Author for correspondence.
Email: shabanov@mail.rcom.ru
член-корреспондент РАМН
Russian Federation, St. Petersburg; St. PetersburgS. В. Shustov
St. Petersburg Medical Academy of Postgraduate educations; Military Medical Academy of the name of Kirov S.M
Email: shabanov@mail.rcom.ru
Russian Federation, St. Petersburg; St. Petersburg
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