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Neuroscience and Behavioral Physiology

, Volume 43, Issue 5, pp 629–642 | Cite as

Comparative Assessment of Cerebral Hemodynamics in School-Age Children Living in the Far Eastern and European North

  • V. P. Rozhkov
  • I. V. Nikolaev
  • S. I. Soroko
Article
  • 24 Downloads

Cerebral hemodynamics were studied in northern schoolchildren aged 7–17 years living in the absolute (Magadan Region, 62°N, n = 167) and relative (Arkhangelsk Region, 61°N, n = 52) discomfort zones by transcranial Doppler sonography and rheoencephalography. New data were obtained on measures of blood flow in the main cerebral arteries, vessel tone, vasomotor reactivity, and the development of these values in children in two northern regions of the Russian Federation. Blood flow rates in the cerebral arteries of Evens and Koryaks, who form the aboriginal population, were significantly greater than in children of incoming settlers. There was a tendency to an increase in the tone of resistance vessels in northern children, which was more marked among children living in the harsher conditions of the Magadan Region. Parameters characterizing individual adaptive rearrangements of cerebral circulation and the features possibly associated with the formation of the “polar metabolic type” are discussed.

Keywords

cerebral circulation transcranial Doppler ultrasound adaptation North children 

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • V. P. Rozhkov
    • 1
  • I. V. Nikolaev
    • 1
  • S. I. Soroko
    • 1
  1. 1.I. M. Sechenov Institute of Evolutionary Physiology and Biochemistry and Arktika Research Center, Far Eastern BranchRussian Academy of SciencesSt. PetersburgRussia

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