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首页> 外文期刊>Brazilian Journal of Infectious Diseases >HIV-1 genotypic resistance profile of patients failing antiretroviral therapy in Paraná, Brazil
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HIV-1 genotypic resistance profile of patients failing antiretroviral therapy in Paraná, Brazil

机译:巴西巴拉那州抗逆转录病毒治疗失败的患者的HIV-1基因型耐药情况

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Antiretroviral therapy (ART) has reduced morbidity and mortality related to human immunodeficiency virus (HIV) infection, but in spite of this advance, HIV mutations decrease antiretroviral susceptibility, thus contributing to treatment failure in patients. Genotyping HIV-1 allows the selection of new drugs after initial drug failure. This study evaluated the genotypic profile of HIV-1 isolates from treated (drug-experienced) patients in Paraná, Brazil. The prevalence of mutations in reverse transcriptase (RT) and protease (PR) genes were assessed. We analyzed 467 genotypes of patients with HIV-1 viral loads above 1,000 copies/mL. Mutations at HIV-1 RT and PR genes and previously used ART regimens were recorded. The most prevalent RT mutations were: 184V (68.31%), 215YF (51.6%), 103NS (46%), 41L (39.4%), 67N (38.54%), 210W (23.5%), 190ASE (23.2%), and 181C (17.4%). PR mutations were 90M (33.33%), 82ATFS (29%), 46I (26.8%) and 54V (22.2%). The prevalence of mutations was in line with previous national and international reports, except to nonnucleoside analogue reverse transcriptase inhibitors related mutations, which were more prevalent in this study. Previous exposure to antiretroviral drugs was associated with genotypic resistance to specific drugs, leading to treatment failure in HIV patients.
机译:抗逆转录病毒疗法(ART)降低了与人类免疫缺陷病毒(HIV)感染有关的发病率和死亡率,但是尽管取得了这一进展,HIV突变仍降低了抗逆转录病毒的敏感性,从而导致患者治疗失败。对HIV-1进行基因分型可以在初次药物治疗失败后选择新药。这项研究评估了来自巴西巴拉那州(经药物治疗)患者的HIV-1分离株的基因型分布。评估了逆转录酶(RT)和蛋白酶(PR)基因突变的发生率。我们分析了HIV-1病毒载量高于1,000份/ mL的患者的467个基因型。记录了HIV-1 RT和PR基因的突变以及先前使用的ART方案。最普遍的RT突变是:184V(68.31%),215YF(51.6%),103NS(46%),41L(39.4%),67N(38.54%),210W(23.5%),190ASE(23.2%)和181℃(17.4%)。 PR突变为90M(33.33%),82ATFS(29%),46I(26.8%)和54V(22.2%)。除非核苷类似物逆转录酶抑制剂相关的突变外,突变的发生率与以前的国家和国际报告相符,该突变在本研究中更为普遍。以前接触抗逆转录病毒药物与对特定药物的基因型耐药性有关,导致HIV患者的治疗失败。

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