Abstract
It is known that the psycho-emotional and mental stress can lead to the disruption of adaptation process, which is accompanied by severe metabolic changes in the body. In this regard, the aim of this work was to study the effect of mental and emotional stressor (exam) on free radical processes and morphological picture of the salivary fluid in students from different ethnic groups. The study involved 129 students of the 1 course of which 70 healthy volunteers were included in the final study group on the basis of personal data. After attrition students were divided into 3 groups according to their ethnicity - Russians, Africans and Indians. Salivary fluid collection was done before and after the exam, then collected biomaterial was analyzed by induced chemiluminescence and wedge dehydration methods. For volunteers observed within each ethnic group have been installed 3 categories for free radical oxidation (FRO) level: low (0-0,35), medium (0.35-0.5) and the high (0,5
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