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Basic Characteristics of Mutations
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Mutation Site
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V75I |
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Mutation Site Sentence
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Figure 1 The proportion of DRM at baseline, during first viral failure, and in additional viral failures. INI, integrase inhibitors; NNRTI, nonnucleoside reverse transcriptase inhibitors; NRTI, nucleoside reverse transcriptase inhibitors; PI, protease inhibitors; VF, viral failure. |
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Mutation Level
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Amino acid 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 |
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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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NRTI |
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Location
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Israel |
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Literature Information
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PMID
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39912770
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Title
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Drug resistance testing at regimen failure in individuals diagnosed with HIV-1 between 2010 and 2018 in Israel
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Author
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Wagner T,Levy I,Wieder-Finesod A,Wax M,Gozlan Y,Elbirt D,Kedem E,Olshtain-Pops K,Elinav H,Chowers M,Istomin V,Smolyakov R,Matus N,Girshengorn S,Marom R,Turner D,Mor O
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Journal
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AIDS (London, England)
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Journal Info
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2025 May 1;39(6):760-765
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Abstract
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OBJECTIVE: Assess virological failures, analyze the results of resistance testing (RET), and investigate factors associated with acquired drug resistance mutations (aDRM). DESIGN: A retrospective longitudinal cohort study. METHODS: Virological failures (viral load >50 copies/ml) from a cohort of 1130 individuals, diagnosed with HIV-1 in 2010-2018 and followed up until 2020, were included. Demographic, clinical, and virological data were collected. A piecewise exponential additive mixed model was employed to estimate the association of various factors with aDRM. RESULTS: Only 82 individuals had virological failure, 20/82 had multiple virological failures. The majority of virological failures (77%) were men, 48% were Israeli-born,79% were diagnosed in 2010-2014. Only 18% initiated with second-generation integrase-inhibitor (INI) based regimens. Although no baseline differences were identified between those with single and multiple virological failures, the latter had lower CD4 + levels before first virological failure. NRTI M184IV and INI N155H were identified in more than 10% of the cases. In those with additional failures, INI N155H was more prominent in cases with subtype B compared to those with non-B subtypes ( P = 0.039). Diagnoses with CD4 + cell count less than 200 cells/mul and AIDS [hazard ratio = 3.46, 95% confidence interval (95% CI): 1.51-7.92, P = 0.003], second-generation INI at the first virological failure (HR = 0.32, 95% CI: 0.11-0.91, P = 0.033), and RET at baseline (hazard ratio = 0.34, 95% CI: 0.13-0.86, P = 0.022) had a significant and persistent relative effect on aDRM. CONCLUSION: The risk for aDRM is reduced in those who are treated with second-generation INI-based regimens. Diagnosis with low CD4 + cell counts and AIDS is associated with detection of aDRM.
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Sequence Data
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-
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