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Basic Characteristics of Mutations
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Mutation Site
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L210W |
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Mutation Site Sentence
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The resistance mutations identified were K103N, L210W, E138G, V179D, V179T, and M46L. |
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Mutation Level
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Mutation Type
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Nonsynonymous substitution |
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Gene/Protein/Region
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RT |
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Standardized Encoding Gene
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gag-pol:155348
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Genotype/Subtype
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HIV-1 CRF02_AG |
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Viral Reference
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-
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Functional Impact and Mechanisms
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Disease
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HIV Infections
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Immune
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- |
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Target Gene
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-
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Clinical and Epidemiological Correlations
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Clinical Information
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Y |
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Treatment
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RTmutations |
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Location
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Gabon |
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Literature Information
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PMID
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38164103
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Title
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Current Resistance of HIV-1 Strains Isolated in Volunteer Blood Donors in Gabon
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Author
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Mangala C,Maulot-Bangola D,Moutsinga A,Wamba AG,Okolongo-Mayani SC,Fokam J
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Journal
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AIDS research and human retroviruses
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Journal Info
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2024 May;40(5):341-346
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Abstract
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Detection of drug resistance mutations (DRMs) and HIV-1 subtypes ensures effective therapeutic management for HIV-infected individuals. In Gabon, data on DRMs are very little available in the population of people living with HIV and also among voluntary HIV-positive blood donors. This study aimed to study subtypes and DRMs in HIV-1-positive volunteer blood donors in Gabon. A cross-sectional study was carried out at the National Blood Transfusion Center of Gabon. A purposive sampling method was used to collect 128 HIV-1 seropositive blood samples. Viral RNA was extracted on real-time PCR (Abbott 2000((R))), and sequencing was performed on ABI 3500 (Hitachi((R))). SPSS version 21.0 software was used for statistical analysis. Of the 128 seropositive volunteer donors included, men and the 29-39-age group were more representative at 78.9% and 49.2%, respectively. Eighty-two samples were sequenced. The majority strains identified were subtype A, subtype F, subtype G, CRF02_AG, and CRF45_cpx. The resistance mutations identified were K103N, L210W, E138G, V179D, V179T, and M46L. The prevalence of resistant subtypes was 25.6%. CRF02_AG strains exhibited high-level resistance to non-nucleoside reverse transcriptase inhibitors (NNRTIs), including efavirenz and nevirapine. The study identified major DRMs in reverse transcriptase and protease that confer high-level resistance to most NNRTIs, nucleoside reverse transcriptase inhibitors, and protease inhibitors. CRF02_AG was more predominant, and the frequency of resistant subtypes was high. However, these data will contribute to the therapeutic choice during the initiation of antiretroviral treatment in treatment-naive patients in Gabon.
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Sequence Data
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-
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