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

• Published in: Neuroscience and behavioral physiology Vol. 43; no. 5; pp. 629 - 642
• Main Authors: Rozhkov, V. P., Nikolaev, I. V., Soroko, S. I.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.06.2013; Springer Nature B.V
• Subjects: Adaptation; Arteries; Behavioral Sciences; Biochemistry; Biomedical and Life Sciences; Biomedicine; Children & youth; Circulatory system; Hemodynamics; Metabolism; Native peoples; Neurobiology; Neurosciences; Pathology; Physiology; Ultrasonic imaging; Veins & arteries; Russia; adaptation; North; transcranial Doppler ultrasound; children; cerebral circulation
• ISSN: 0097-0549; 1573-899X
• DOI: 10.1007/s11055-013-9784-2

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.