scholarly journals Assessing transmissibility of HIV-1 drug resistance mutations from treated and from drug-naive individuals

AIDS ◽  
2016 ◽  
Vol 30 (4) ◽  
pp. 679
2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Saïdou Mamadou ◽  
Yahayé Hanki ◽  
Amadou Roufaï Ali Maazou ◽  
Balki Aoula ◽  
Sanata Diallo

The objective of the study was to estimate the prevalence of transmitted resistance to antiretroviral of HIV-1 circulating in Niger. We collected plasmas from 96 drug-naive patients followed up in the main HIV/AIDS Care Center of Niamey, the capital city of Niger. After RNA extraction and retrotranscription to proviral DNA, nested PCR was performed to amplify PR (codons 1–99) and RT (codons 1–240) fragments for sequencing. Sequences were analysed for phylogeny, then for resistance-associated mutations according to IAS-USA and Stanford's lists of mutations. We characterized six HIV-1 genetic variants: CRF02-AG (56.3%), CRF30_0206 (15.6%), subtype G (15.6%), CRF06_cpx (9.4%), CRF11_cpx (2.1%), and CRF01_AE (1%). About 8.3% of HIV strains had at least 1 resistance mutation: 4 strains with at least 1 mutation to NRTI, 5 for NNRTI, and 1 for PI, respectiveley 4.2%, 5.2%, and 1.0%. These preliminary results gave enough information for the need of instauring HIV drug resistance national surveillance.


AIDS ◽  
2011 ◽  
Vol 25 (17) ◽  
pp. 2183-2188 ◽  
Author(s):  
Avelin F. Aghokeng ◽  
Charles Kouanfack ◽  
Christian Laurent ◽  
Eugenie Ebong ◽  
Arrah Atem-Tambe ◽  
...  

AIDS ◽  
2015 ◽  
Vol 29 (15) ◽  
pp. 2045-2052 ◽  
Author(s):  
Raf Winand ◽  
Kristof Theys ◽  
Mónica Eusébio ◽  
Jan Aerts ◽  
Ricardo J. Camacho ◽  
...  

2016 ◽  
Vol 32 (3) ◽  
pp. 220-225 ◽  
Author(s):  
Simon Onsongo ◽  
Syed Hani Abidi ◽  
Samoel Khamadi ◽  
Reena Shah ◽  
Sheila Kageha ◽  
...  

2021 ◽  
Vol 22 (10) ◽  
pp. 5304
Author(s):  
Ana Santos-Pereira ◽  
Vera Triunfante ◽  
Pedro M. M. Araújo ◽  
Joana Martins ◽  
Helena Soares ◽  
...  

The success of antiretroviral treatment (ART) is threatened by the emergence of drug resistance mutations (DRM). Since Brazil presents the largest number of people living with HIV (PLWH) in South America we aimed at understanding the dynamics of DRM in this country. We analyzed a total of 20,226 HIV-1 sequences collected from PLWH undergoing ART between 2008–2017. Results show a mild decline of DRM over the years but an increase of the K65R reverse transcriptase mutation from 2.23% to 12.11%. This increase gradually occurred following alterations in the ART regimens replacing zidovudine (AZT) with tenofovir (TDF). PLWH harboring the K65R had significantly higher viral loads than those without this mutation (p < 0.001). Among the two most prevalent HIV-1 subtypes (B and C) there was a significant (p < 0.001) association of K65R with subtype C (11.26%) when compared with subtype B (9.27%). Nonetheless, evidence for K65R transmission in Brazil was found both for C and B subtypes. Additionally, artificial neural network-based immunoinformatic predictions suggest that K65R could enhance viral recognition by HLA-B27 that has relatively low prevalence in the Brazilian population. Overall, the results suggest that tenofovir-based regimens need to be carefully monitored particularly in settings with subtype C and specific HLA profiles.


PLoS ONE ◽  
2019 ◽  
Vol 14 (10) ◽  
pp. e0223210
Author(s):  
Giselle de Faria Romero Soldi ◽  
Isadora Coutinho Ribeiro ◽  
Cintia Mayumi Ahagon ◽  
Luana Portes Ozório Coelho ◽  
Gabriela Bastos Cabral ◽  
...  

2015 ◽  
Vol 12 (1) ◽  
Author(s):  
Tomohiro Kotaki ◽  
Siti Qamariyah Khairunisa ◽  
Adiana Mutamsari Witaningrum ◽  
Muhammad Qushai Yunifiar M ◽  
Septhia Dwi Sukartiningrum ◽  
...  

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