Discussion: The most frequent NRTI-associated mutations in our study were M184V and L210W, while they are M41L and D67G in Southwest China and T215C/D in Iceland and the south-central United States.
Transmitted HIV-1 drug resistance in a large international cohort using next-generation sequencing: results from the Strategic Timing of Antiretroviral Treatment (START) study.
Result: Patients infected with the CRF01_AE subtype were the most likely to develop NRTI-associated mutations; the most common mutations were M41L (0.17%) and D67G (0.17%).
HIV-1 subtypes and drug resistance in children during antiretroviral therapy in Brazil.
Abstract: The most common primary mutations found were M184V (29.5%), K103N (25%), M41L (9.8%), T215Y (8.3%), and G190A (8.3%).
Virologic outcomes of switching to dolutegravir functional mono- or dual therapy with a non-cytosine nucleoside analog: a retrospective study of treatment-experienced, patients living with HIV.
Result: The other patient was switched from TDF/FTC/EVG/c to DTG/ABC/3TC (Table 2, Patient 6) and historical genotypic testing revealed an M184V/I, M41L, T215Y and L74/I which predicted that DTG was the only fully active agent in the study DCR.
Table: M41L
Discussion: Among the three patients on functional dual therapy with persistent viremia and documented non-adherence, two were on DTG/ABC and only had baseline M184V/I whereas the other was on DTG/TDF and had baseline M184V/I, M41L and T215Y.
Discussion: The other was on DTG/ABC/3TC and had baseline M184V/I, L74I, M41L
Temporal Trends in HIV-1 Mutations Used for the Surveillance of Transmitted Drug Resistance.
Method: Thymidine-analog mutations were defined as the NRTI-SDRMs M41L, D67N/G/E, K70R, L210W, T215Y/F/S/C/D/E/I/V, and K219Q/E/N/R.
Result: Three mutations demonstrated a change in prevalence among RTI-naive persons: M41L, F77L, and T215D each decreased in prevalence.
Nationwide Study of Drug Resistance Mutations in HIV-1 Infected Individuals under Antiretroviral Therapy in Brazil.
PMID: 34069929
2021
International journal of molecular sciences
Result: The most common SDRM (Figure 1, Supplementary Table S2) were the substitutions in RT amino acids M184V (65.53%, n = 13,265), K103N (40.20%, n = 8738), and M41L (17.21%, n = 3480).
Discussion: Also in line with previous studies is the finding of M184V (65.53%), K103N (40.20%), and M41L (17.21%) as the most common SDRM.
Discussion: We propose that the lack of universal baseline HIV-1 DRM screening to inform on effective ART regimens resulted in high levels of SDRM, such as M184V, K103N, and M41L underlying many cases of treatment failure in Brazil not only from 2008-2012 but also continuing from 2013-2017.
Characterizing HIV-1 Genetic Subtypes and Drug Resistance Mutations among Children, Adolescents and Pregnant Women in Sierra Leone.
Result: The most prevalent RT RAMs among children and adolescents and their relative proportions were as follows: M184V (76.6%, n = 49/64), K103N (45.3%, n = 29/64), Y181C/V/I (28.1%, n = 18/64), T215F/Y (25.0%, n = 16/64), V108I (18.8%, n = 12/64), A98G (15.6%, n = 10/64), G190A (12.5%, n = 8), K101E/H (12.5%, n = 8), M41L (10.9%, n = 7/64), L74I/V (10.9%, n = 7/64), and H221Y (10.9%, n = 7/64) (Figure 1a,b).
HIV-1 Drug Resistance and Genetic Transmission Networks Among MSM Failing Antiretroviral Therapy in South China 2014-2019.