High HIV-1 Virological Failure and Drug Resistance among Adult Patients Receiving First-Line ART for At least 12 Months at a Decentralized Urban HIV Clinic Setting in Senegal before the Test-and-Treat.
Method: T215 mutations other than T215Y/F were called T215 revertants because they often emerge in individuals initially infected with a virus containing T215Y/F.
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.
Discussion: The continued prevalence of thymidine analog mutations in RTI-naive persons since 2009 despite the decline in thymidine analog use has been reported in several studies and reflects the fact that with the exception of
High Detection Rate of HIV Drug Resistance Mutations among Patients Who Fail Combined Antiretroviral Therapy in Manaus, Brazil.
Result: The most frequently detected DRMs were M184I/V (68/82; 82.9%), K70E/R (16/82; 19.5%), and T215F/Y (17/82; 20.7%) to NRTI and K103N/S (51/82; 62.1%), P225H (15/82; 18.2%), and V106A/I/M (11/82; 13.4%) to NNRTI (Figure 1).
Result: Thymidine analog mutations (TAM) were detected in 35.4% of the individuals [17.1% (14/82) TAM-1 (including M41L, L210W, and T215Y) and 20.7% (17/82) TAM-2 (including D67N, K70R, T215F, and K219Q/E
Nucleoside Reverse-Transcriptase Inhibitor Resistance Mutations Predict Virological Failure in Human Immunodeficiency Virus-Positive Patients During Lamivudine Plus Dolutegravir Maintenance Therapy in Clinical Practice.
PMID: 34327247
2021
Open forum infectious diseases
Method: The variables expressing NRTI RAMs were identified as follows: (1) presence versus absence of any NRTI RAM; (2) presence versus absence of at least 1 TAM (M41L, D67N, K70R, L210W, T215Y/F, K219Q/E); (3) presence versus absence of M184V/I (with or without other RAMs); (4) presence versus absence of M184V/I not associated with TAMs; (5) presence versus absence of M184V/I combined with at least 1 TAM.
Genetic Diversity and Acquired Drug Resistance Mutations Detected by Deep Sequencing in Virologic Failures among Antiretroviral Treatment Experienced Human Immunodeficiency Virus-1 Patients in a Pastoralist Region of Ethiopia.
Discussion: In consistent with this study, quite a number of global and regional genetic analyses of HIV-1 have unanimously reported that the most globally prevalent NRTI resistance mutations is M184V followed by thymidine analog-associated mutations (TAM) including M41L, D67N, K70R, L210W, T215Y/F and K219Q/E, and, the most prevalent NNRTI was K103N.
Discussion: Moreover, this is in line with another study conducted in Northern India that reported 89.8% NRTI and NNRTI ADR mutations among virolog
Transmitted drug resistance to Tenofovir/Emtricitabine among persons with newly diagnosed HIV infection in Shenyang city, Northeast China from 2016 to 2018.
Discussion: It is no surprise that NNRTI-related mutations increased rapidly in China recently, and M184V/I and T215I/Y/S/D/F were the main NRTI DRMs in ART-naive and ART-treated individuals, respectively.
Correlation of HIV-1 drug resistant mutations and virologic failure.
PMID: 34584606
2021
The Pan African medical journal
Introduction: These mutations included M184V, K65R,D67N,K70R,K219Q,Q151M, T215F, M41L, T69N, V75M, M41L, T69N, V75M, D67G, V75M, M184I, T215N, M41LM, T215N, K219N,210W, T215Y as NRTIs; K103N/S
HIV-1 Drug Resistance and Genetic Transmission Networks Among MSM Failing Antiretroviral Therapy in South China 2014-2019.
Abstract: Among children and adolescents, the most common RAMs were M184V (76.6%, n = 49/64),
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).
High resistance to reverse transcriptase inhibitors among persons infected with human immunodeficiency virus type 1 subtype circulating recombinant form 02_AG in Ghana and on antiretroviral therapy.
Discussion: T215Y/F and K219E are major TAMs which give rise to high-level resistance to Zidovudine and Stavudine, especially when the mutations occur in concert with accessory TAMs like M41L, D67N, and K70R.
Discussion: Other mutations detected in this study, which have been shown to confer resistance to NRTIs, were M184I, T69N, L74I, M41L, K70R/E, T215Y/F, and K219E.
HIV mutation literature information.
PMID: 
2021
Infectious diseases
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