The article presents the analysis of distribution of alleles and genotypes of AIa16VaI polymorphism (rs4880) of superoxidedismutase 2 (SOD2) gene in Caucasoid teenagers with hypertension (n = 102) and in Caucasoid popuIation sampIing (n = 65), Iiving in the Eastern Siberia. Frequencies of aIIeIes in popuIation sampIing were AIa = 0,492 and VaI = 0,508, of genotypes AIa/AIa = 0,277; AIa/VaI = 0,431 and VaI/VaI = 0,292. In the group of teenagers with arteriaI hypertension the frequency of aIIeIes was AIa = 0,495 and VaI = 0,505, of genotypes AIa/AIa = 0,245; AIa/VaI = 0,500 and VaI/VaI = 0,255. There were no significant differences found at the comparison the data.

An analysis of the researches showed that the indigenous ethnic group of Baikal region has high level of adaptation to a place of residence in comparison with migrant. Rate and clinical manifestations of diseases in the Buryat ethnic group have significant differences from the Russian (moderate type 1 diabetes, severe reproductive disorders). Also, there are some differences of redox protection state in indigenous ethnic group of Baikal region that could be an additional biochemical marker of disease severity.

Purpose: to study habits as a risk factor of cardiovascular pathology as so as a role of apolipoprotein A1 gene in metabolism in native and alien population of Eastern Siberia. Methods: we used Kiselev questionnaire (1998) for estimation of nutritional risk. Totally 863 adolescents were evaluated, including 445 (51,6 %) persons of the alien ethnogroup (Russian) and 418 (48,4 %) persons of the native ethnogroup (Buriat). We evaluated clinically, functionally and genetically healthy and hypertensive (having essential arterial hypertension) adolescents and compared the results. Out of 226 adolescents with essential arterial hypertension, 144 persons were from the alien ethnogroup (mean age is 16,22 ± 1,14 years) and 82 adolescents from the native ethnogroup (mean age is 16,57 ± 1,62 years). Out of 173 healthy adolescents (mean age is 15,12 ± 2,71 years), 79 (45,7 %) persons were buriats and 94 (54,3 %) persons were Russian. Ethnic data were gotten by questionnaire, which included information about nationality back to the third generation of ancestors. We studied a total genomic DNA, which was extracted from blood serum by non-enzymatic method. An amplification of DNA loci was performed by polymerase-chain reaction using an automatic thermocycler «Biometra» with «SNP-экспресс», «Litex» reagents. The results of our research indicated an imbalance of habits with domination of protein-lipid dietary compounds in adolescents of native and alien population ofEastern Siberia. We found differentiated contributions ofinsertion-deletional polymorphism of apolipoprotein A1 gene. We did no found differences of frequency response of alleles and genotypes. We found a positive linkofapolipoprotein Al gene deletion with increased level ofcholesterine, very low density lipoproteins, triglycerides as so as with elevation ofnumbers ofblood pressure indexes in the adolescents ofthe alien ethnogroup. We did not found such kind of links in adolescents of the native ethnogroup that, as we suppose, may be a reflection of the evolutionary developed stereotype with some predominance oflipid-protein dietary component. Developed through the millennia such kind ofdiet in the indigenous population of the North and Siberia is a response to cold stress and underlies formation ofthe genotype, which aimed to developing a biochemical phenotype with ability to compensate this atherogenic imbalance.

The article presents the data about polymorphism of ApoB3'VNTR in evenks living in Irkutsk region.

We present a comparative analysis of the results of medical examination of adolescents living in Bayanday. The most unfavorable health situation concerned physical development and the number of disembriogenetic stigmas in boys living in Bayanday.