RESUMO
The results of the molecular-epidemiological analysis of the HIV-1 variants circulating in Blagoveshchensk and Khabarovsk (Russian Far East) were presented. In Blagoveshchensk HIV-1 IDU-A variants were dominated (92.5%), similar to the regions of the European part of Russia. In Khabarovsk the heterogeneity of circulating HIV-1 variants was noted. In addition to IDU-A variants (66.0%), the strains of subtype B (12.6%), C (4.4%) and recombinant strain form CRF02_AG (17.0%) were identified. Using the phylogenetic analysis method the version of the penetration of HIV-1 variants from China and Japan was not supported.
Assuntos
Farmacorresistência Viral/genética , Infecções por HIV/genética , HIV-1/genética , Filogenia , Ásia Oriental , Variação Genética , Infecções por HIV/epidemiologia , Infecções por HIV/patologia , Infecções por HIV/virologia , HIV-1/patogenicidade , Humanos , Mutação , Recombinação Genética , Federação RussaRESUMO
The HIV-1 genetic variants circulated in the Asian part of the Russian Federation in 2005-2010 were studied. The samples of HIV-1 (427 in total) were collected in Khabarovsk, Magadan, Kurgan, Krasnoyarsk, Noyabr'sk, Yakutsk, Altay, and Tyva. Sequencing of some genome regions followed by the phylogenetic analysis or specific Internet resource sampling were used as the main methods of the HIV subtyping. The domination of the IDU-A HIV-1 genetic variant typical of HIV-infection epidemic in Russia was shown in all regions tested in 2005-2010. This variant prevailed both in IDUs and heterosexuals. In addition to IDU-A, some other HIV-1 genetic variants were found among them: subtype B and recombinant CRF03_AB. The HIV-1 genetic polymorphism in Russia was found to be low. An increase in the genetic distance among studied de novo samples was noted in the Asian part of Russia in 2005-2010 (26-68%) as compared to the European variants in 1996-1999 (10%).
Assuntos
Infecções por HIV/epidemiologia , Infecções por HIV/genética , HIV-1/genética , Filogenia , Polimorfismo Genético , Feminino , Humanos , Masculino , Estudos Retrospectivos , Sibéria/epidemiologiaRESUMO
The results of the molecular epidemiological analysis of HIV-1 circulating in Kirghizia were presented. In the area of Kirghizia this type of the work was performed for the first time. Two main genetic variants were discovered: variant IDU-A dominating in the area of the former Soviet Union, as well as recombinant form CRF02_AG. The possibility of further recombination process between these two variants of HIV-1 was suggested.