International Union for Circumpolar Health Ministry of Public Health and Social Development of RF Russian Academy of Medical Sciences Siberian Branch of Russian Academy of Medical Sciences Siberian Branch of Russian Academy of Sciences Medical Polar Fund “Science” The Northern Forum

Abstracts

Ecology and adaptation (medical ecology)

During 1985-2005 the laboratory of helioclimatopathology SI SCCEM SB RAMS have conducted a series of population studies using the computer program “Helios” and express-assessment of organism magneto-sensitivity in the North. It is shown that the persons, examined in Dixon (73031’North) had a significant (p0,05) reverse correlative link of blood pressure level (BP) and its dynamics at testing magnetic impact with value of induction of a geomagnetic field (GMF) during formation of relatives’ gametes, living in the middle latitude geographical points. Value of GMF and solar activity during early human ontogenesis is one of the risk factors for development of blood pressure (Trofimov A.V., 2001, 2003).

Modeling of geophysical conditions of high latitude regions ( with a decreased induction of one of the components and angle of GMF slope seems be possible in a screening installation, arbitrarily called as “a cosmobiotron”

The aim of investigation was to study adaptation of healthy volunteer-men organisms, inhabitants of the middle latitudes (n=32; 19,10,5 years) in the conditions of the changed GMF (10 seances for 30 min., during 4 months).

Methods of genotyping of the examined along length of D4gene alleles, computers to register electric activity of brain (EEG), cardiospectrum, BP dynamics, gas-discharge visualization (GCV), satellite monitoring of cosmophysical medium data, as well as fractionation of weak carbon isotopes in tissue by a mass-spectrometer Delta and covariative associative analysis of the data obtained ( packet SPSS 11.0) have been used.

The results of the investigations have shown that the examined- carries of small and long D4 gene alleles, differently reacted on the modeled GMF weakening. Changes of EEG spectrum and hemodynamic parameters greatly depended on length of this gene (Maximov and et.al.,2002). Towards the end of a course of geomagnetic deprivation, human frequency-electric GCV-parameters possessed a cross-correlative dependence on cosmophysical factors of unknown biotropic impact such as protonic and electronic components of cosmic rays (Trofimov A.V., Devitsyn D.V., 2005), having great intensity in high latitudes.

Some important biothermodynamic changes in human tissues, occurring at atomic-molecular level have been stated. According to V.A.Ponomarchuk’s data (2004) at multiple repeating GMF weakening, content of 13 C stable isotope increased greatly and content of 12 C isotope remained at the same level.

Evidence and trend of human adaptation to the modeled geophysical northern conditions depends on geoecological situation at different ontogenesis stages in two relative generations.

New horizons of preventive circumpolar medicine using some geoecological criteria to select and preserve health of persons, migrating to the Far North are defined.

Note. Abstracts are published in author's edition

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Last update: 06-Jul-2012 (11:52:05)