title: Efficacy of antiretroviral therapy in individuals infected with HIV-1 non-B subtypes.
abstract: The impact of HIV-1 subtype on clinical outcome following exposure to antiretroviral therapy is currently not well known. Natural polymorphisms are often present in HIV-1 non-B subtypes at positions known to be associated with drug resistance in clade B viruses. These changes might influence the emergence of drug-resistant viruses, modifying drug susceptibility and/or the virus replicative capacity. Moreover, different pathways may lead to drug resistance according to HIV-1 clade. Finally, the influence of subtype on the performance of phenotypic assays and in the interpretation of algorithms for genotypic resistance is currently a matter of debate. All these aspects explain why the response to antiretroviral therapy might vary in subjects infected with different HIV-1 clades.
authors.affiliation: Department of Infectious Diseases, Hospital Carlos III, Madrid, Spain. aholguin.hciii@salud.madrid.org
authors.forename: Africa
authors.initials: A
authors.lastname: Holguín
authors.forename: Eva
authors.initials: E
authors.lastname: Ramirez de Arellano
authors.forename: Pablo
authors.initials: P
authors.lastname: Rivas
authors.forename: Vincent
authors.initials: V
authors.lastname: Soriano
mesh_terms: D019380:Anti-HIV Agents / Q000494:pharmacology / Q000627:therapeutic use*; D024882:Drug Resistance, Viral; D014644:Genetic Variation; D015658:HIV Infections / Q000188:drug therapy* / Q000276:immunology / Q000821:virology; D015497:HIV-1 / Q000145:classification* / Q000187:drug effects / Q000235:genetics; D006801:Humans; D018894:Reverse Transcriptase Inhibitors / Q000494:pharmacology / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D019380:Anti-HIV Agents; D018894:Reverse Transcriptase Inhibitors