Análise de polimorfismo do gene APOBEC3G em pacientes HIV positivos

Autores

DOI:

https://doi.org/10.33448/rsd-v11i2.25815

Palavras-chave:

HIV; Hepatite B; Hepatite C; Desaminase APOBEC-3G; Polimorfismo genético.

Resumo

O vírus da imunodeficiência humana do tipo 1 (HIV-1) é o agente etiológico da AIDS. As hepatites virais B (HBV) e C (HCV) são infecções comuns em indivíduos HIV-positivos. Um dos fatores genéticos humanos investigados no controle da replicação do HIV-1 e na progressão da AIDS é a enzima APOBEC3G (A3G). Pesquisas investigam sua ação na replicação do HBV e HCV. A ação da enzima resulta na perda de informação genética e produção de virions defeituosos no ciclo replicativo. Uma variante do gene APOBEC3G, o polimorfismo H186R (rs8177832), pode afetar a atividade do gene ou seus níveis de expressão. O presente estudo teve como objetivos determinar a frequência do polimorfismo H186R do gene APOBEC3G em 324 pacientes HIV-1 positivos com e sem coinfecção pelas hepatites B e C, e correlacionar os genótipos do polimorfismo com a carga viral do HIV-1. As frequências dos genótipos AA, AG e GG foram de 88,6%, 9,3% e 2,1%, respectivamente, em pacientes monoinfectados pelo HIV-1 e 85,4%, 12,4% e 2,2% em coinfectados HIV/HBV. Os pacientes coinfectados HIV/HCV apresentaram os genótipos AA e AG com frequências de 90,1% e 9,9%, respectivamente. Pacientes com genótipo AA apresentaram carga viral de 37.969 ± 68.182 cópias/ml e pacientes com genótipo AG apresentaram carga viral de 48.256 ± 54.186 cópias/ml (p=0,180). Nossos resultados demonstram que não há correlação entre os genótipos do polimorfismo H186R de APOBEC3G e a carga viral do HIV-1 na população de estudo.

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Publicado

28/01/2022

Como Citar

GOMES, J. do A.; MERINO, A. S.; LUNGE, V. R. .; SIMON, D. Análise de polimorfismo do gene APOBEC3G em pacientes HIV positivos. Research, Society and Development, [S. l.], v. 11, n. 2, p. e38111225815, 2022. DOI: 10.33448/rsd-v11i2.25815. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/25815. Acesso em: 30 jun. 2024.

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