Low frequency of genotypic resistance in HIV-1-infected patients failing an atazanavir-containing regimen: a clinical cohort study.
PMID: 23711895
2013
The Journal of antimicrobial chemotherapy
Result: The remaining 43 minor atazanavir mutations were either not detected in this dataset (L10C, K20V, E34Q, F53Y, I54L/M/T/A, A71L, G73C/T, V82F and I93M) or were not significantly associated with atazanavir exposure (L10I/F/V, G16E, K20R/M/I/T, L24I, V32I, L33I/F/V, M36L/V, M46L, G48V, I54V
Transmission patterns of HIV-subtypes A/AE versus B: inferring risk-behavior trends and treatment-efficacy limitations from viral genotypic data obtained prior to and during antiretroviral therapy.
Abstract: The remaining 12 subjects, all with VLs<10,000, had protease gene UDS, and 4 had low-level PI DRMs: F53L(2), L76V(1), I54S(1), G73S(1).
Result: Of the 12 specimens that had ultra deep sequencing of only the protease gene, 4/12 (33.3%) had low level PI mutations: F53L(2), L76V(1), I54S(1) and G73S(1) (Figure 1b).
TMC310911, a novel human immunodeficiency virus type 1 protease inhibitor, shows in vitro an improved resistance profile and higher genetic barrier to resistance compared with current protease inhibitors.
PMID: 21896904
2011
Antimicrobial agents and chemotherapy
Abstract: IVRS performed with r13025 in the presence of DRV required less time and resulted in more PI resistance-associated mutations (V32I, I50V, G73S, L76V, and V82I; FC in DRV EC(50) = 258).
Lopinavir/ritonavir resistance in patients infected with HIV-1: two divergent resistance pathways?
Abstract: In contrast, I54V, G73S and L90M were less prevalent in viruses L76V positive than L76V negative (I54V, 42% vs. 83%, P = 0.01; G73S, 0% vs. 33%, P = 0.02; L90M, 25% vs. 83%, P = 0.0006).
The L76V mutation in HIV-1 protease is potentially associated with hypersusceptibility to protease inhibitors Atazanavir and Saquinavir: is there a clinical advantage?
Abstract: 97.9% of variants had the M46I/G73S/L90M pattern at XLF6.
Abstract: After the patient began Indinavir treatment, the variants carrying polymorphisms declined while variants carrying the secondary mutation G73S gained the advantage.
Abstract: As therapy was prolonged, G73S was combined with M46I/L90M to form a resistance pattern M46I/G73S/L90M, which then became the dominant population.
Abstract: During the course of changing the regimen to incorporate Indinavir, the G73S mutation occurred and was combined with M46I/L90M.
HIV drug resistance surveillance using pooled pyrosequencing.