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https://www.readbyqxmd.com/read/28539254/prevalence-of-primary-resistance-among-acutely-recently-hiv-infected-patients-in-rio-de-janeiro-brazil
#1
Ana Cristina G Ferreira, Lara E Coelho, Eduarda Grinsztejn, Carlos S de Jesus, Monick L Guimarães, Valdilea G Veloso, Beatriz Grinsztejn, Sandra W Cardoso
INTRODUCTION: The widespread use of antiretroviral therapy (ART) increased the transmission of antiretroviral resistant HIV strains. ART initiation during acute/recent HIV infection limits HIV reservoirs and improves immune response in HIV infected individuals. Transmitted drug resistance (TDR) may jeopardize the early goals of early ART among acute/recent HIV infected patients. METHODS: Patients with acute/recent HIV infection who underwent resistance test before ART initiation were included in this analysis...
May 21, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28521719/virological-suppression-and-patterns-of-resistance-amongst-patients-on-antiretroviral-therapy-at-4-nigerian-military-hospitals
#2
Keshinro Babajide, Ayemoba Ojor, Terfa Kene, Ake Julie, Crowell Trevor A, Adamu Yakubu, Mohammed Tahir, Okoye Ifeanyi, Odeyemi Sunday, Crawford Keith, Hughes Lindsay, Akintunde Ezekiel, Umar Tahir, Hamm Tiffany E, Njoku Ogbonnaya S
BACKGROUND: In resource-constrained settings, plasma HIV-1 RNA quantification has not been routinely available for the monitoring of response to antiretroviral therapy. This study evaluated virological suppression rates amongst patients on first-line ART in four Nigerian military hospitals. METHODS: We conducted a cross-sectional study of 325 randomly selected adult clinic clients (≥18 years old) on first-line ART regimens at four Nigerian military hospitals. Plasma HIV-1 RNA was assayed using a Roche COBAS TaqMan48 with High Pure System...
May 16, 2017: Current HIV Research
https://www.readbyqxmd.com/read/28520611/treatment-outcomes-of-third-line-antiretroviral-regimens-in-hiv-infected-thai-adolescents
#3
Wasana Prasitsuebsai, Jiratchaya Sophonphan, Kulkanya Chokephaibulkit, Jurai Wongsawat, Suparat Kanjanavanit, Pope Kosalaraksa, Chaiwat Ngampiyakul, Pakarat Sangkla, Rawiwan Hansudewechakul, Stephen J Kerr, Thanyawee Puthanakit, Jintanat Ananworanich
BACKGROUND: Efficacy and safety data of third-line antiretroviral (ARV) regimens in adolescents are limited. METHODOLOGY: This study enrolled HIV-infected Thais who were treated with third-line regimens consisting of darunavir/ritonavir (DRV/r), etravirine (ETR), tipranavir/ritonavir (TPV/r) or raltegravir (RAL). RESULTS: Fifty-four adolescents 2-17 years of age were enrolled from 8 sites and followed for 48 weeks. Reasons for switch were second-line failure (n=44) and toxicity to second-line regimens (n=10)...
May 16, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28507107/in-vitro-cross-resistance-profiles-of-rilpivirine-dapivirine-and-miv-150-nnrti-microbicides-in-clinical-development-for-the-prevention-of-hiv-1-infection
#4
Nicholas S Giacobbi, Nicolas Sluis-Cremer
Rilpivirine, dapivirine (DPV) and MIV-150 are in development as microbicides. It is not known whether they will block infection of circulating NNRTI-resistant HIV-1 variants. Here, we demonstrate that the activity of DPV and MIV-150 are compromised by many resistant viruses containing single or double substitutions. High DPV genital tract concentrations from DPV-ring use may block replication of resistant viruses. However, MIV-150 genital tract concentrations may be insufficient to inhibit many resistant viruses, including those harboring K103N or Y181C...
May 15, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28505015/virologic-response-to-first-line-efavirenz-or-nevirapine-based-antiretroviral-therapy-in-hiv-infected-african-children
#5
Adeodata Kekitiinwa, Alexander J Szubert, Moira Spyer, Richard Katuramu, Victor Musiime, Tawanda Mhute, Sabrina Bakeera-Kitaka, Oscar Senfuma, Ann Sarah Walker, Diana M Gibb
BACKGROUND: Poorer virologic response to nevirapine- versus efavirenz-based antiretroviral therapy (ART) has been reported in adult systematic reviews and pediatric studies. METHODS: We compared drug discontinuation and viral load (VL) response in ART-naïve Ugandan/Zimbabwean children ≥3 years of age initiating ART with clinician-chosen nevirapine versus efavirenz in the ARROW trial. Predictors of suppression <80, <400 and <1000 copies/mL at 36, 48 and 144 weeks were identified using multivariable logistic regression with backwards elimination (P = 0...
June 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28482025/patterns-of-transmitted-drug-resistance-and-virological-response-to-first-line-antiretroviral-treatment-among-hiv-positive-people-who-use-illicit-drugs-in-a-canadian-setting
#6
M Eugenia Socías, Ekaterina Nosova, Thomas Kerr, Kanna Hayashi, P Richard Harrigan, Jeannie Shoveller, Julio Montaner, M-J Milloy
Background: Transmitted drug resistance (TDR) may compromise response to antiretroviral treatment (ART). However, there is limited data on TDR patterns and impacts among people who use illicit drugs (PWUD). Methods: Data was drawn from two prospective cohorts of PWUD in Vancouver, Canada. We characterized patterns of TDR among HIV-positive PWUD, and assessed its impacts on first-line ART virological outcomes. Results: Between 1996-2015, among 573 ART-naïve PWUD (18% with recent HIV infection), the overall TDR prevalence was 9...
May 6, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28481112/structure-based-optimization-of-thiophene-3-2-d-pyrimidine-derivatives-as-potent-hiv-1-non-nucleoside-reverse-transcriptase-inhibitors-with-improved-potency-against-resistance-associated-variants
#7
Dongwei Kang, Zengjun Fang, Boshi Huang, Xueyi Lu, Heng Zhang, Haoran Xu, Zhipeng Huo, Zhongxia Zhou, Zhao Yu, Qing Meng, Gaochan Wu, Xiao Ding, Ye Tian, Dirk Daelemans, Erik De Clercq, Christophe Pannecouque, Peng Zhan, Xinyong Liu
This work follows on from our initial discovery of a series of piperidine-substituted thiophene[3,2-d]pyrimidine HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTI) ( J. Med. Chem. 2016 , 59 , 7991 - 8007 ). In the present study, we designed, synthesized, and biologically tested several series of new derivatives in order to investigate previously unexplored chemical space. Some of the synthesized compounds displayed single-digit nanomolar anti-HIV potencies against wild-type (WT) virus and a panel of NNRTI-resistant mutant viruses in MT-4 cells...
May 15, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28474534/evolution-of-hiv-1-surveillance-drug-resistance-mutations-over-ten-years-in-new-south-wales-australia
#8
Angie Pinto, Alex Carrera, Hanan Salem, Kiran Thapa, Ansari Shaik, Kathy Petoumenos, Philip Cunningham, Roger Garsia, Dominic Dwyer, David A Cooper, Anthony D Kelleher
New South Wales (NSW) has the greatest burden of HIV in Australia, with 2012 and 2013 recording the highest rates of new diagnoses in twenty years. Concurrently, there has been significant changes in antiretorviral treatments and testing paradigms. We compiled a statewide resistance database to characterize changes in HIV-1 resistance mutations over time. Genotypic antiretroviral resistance testing (GART) was performed on request at three reference laboratories using commercial and in house methods. 7629 HIV-1 polymerase sequences obtained from GART from 2004-2013 were retrospectively collated, reformatted, de-identified and analysed using Stanford HIVdb program 7...
May 5, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28453836/commonly-transmitted-hiv-1-drug-resistance-mutations-in-reverse-transcriptase-and-protease-in-antiretroviral-treatment-naive-patients-and-response-to-regimens-containing-tenofovir-disoproxil-fumarate-or-tenofovir-alafenamide
#9
Nicolas A Margot, Pamela Wong, Rima Kulkarni, Kirsten White, Danielle Porter, Michael E Abram, Christian Callebaut, Michael D Miller
Background.: The presence of transmitted drug resistance mutations (TDRMs) in antiretroviral treatment (ART)-naive patients can adversely affect the outcome of ART. Methods.: Resistance testing was conducted in 6704 ART-naive subjects predominantly from the United States and Europe in 9 clinical studies conducted by Gilead Sciences from 2000 to 2013. Results.: The presence of TDRMs increased during this period (from 5.2% to 11.4%), primarily driven by an increase in nonnucleoside reverse-transcriptase (RT) inhibitor (NNRTI) resistance mutations (from 0...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453027/-prevalence-of-potential-drug-drug-interactions-involving-antiretroviral-drugs-in-buenos-aires-argentina
#10
Ezequiel Córdova, Norma Porteiro, Eliana Loiza, Horacio Mingrone
INTRODUCTION: Antiretroviral agents (ARVs) have a high potential for drug interactions. However, the prevalence and risk factors for clinically significant drug-drug interactions (CSDDIs) with ARVs from Latin American countries is unknown. AIM: To evaluate the prevalence and risk factors for CSDDIs in HIV outpatients attending at two centers in Buenos Aires, Argentina. METHODS: Descriptive cross-sectional study (september to november 2012)...
October 2016: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28434406/efavirenz-based-simplification-after-successful-early-lopinavir-boosted-ritonavir-based-therapy-in-hiv-infected-children-in-burkina-faso-and-c%C3%A3-te-d-ivoire-the-monod-anrs-12206-non-inferiority-randomised-trial
#11
Désiré Lucien Dahourou, Madeleine Amorissani-Folquet, Karen Malateste, Clarisse Amani-Bosse, Malik Coulibaly, Carole Seguin-Devaux, Thomas Toni, Rasmata Ouédraogo, Stéphane Blanche, Caroline Yonaba, François Eboua, Philippe Lepage, Divine Avit, Sylvie Ouédraogo, Philippe Van de Perre, Sylvie N'Gbeche, Angèle Kalmogho, Roger Salamon, Nicolas Meda, Marguerite Timité-Konan, Valériane Leroy
BACKGROUND: The 2016 World Health Organization guidelines recommend all children <3 years start antiretroviral therapy (ART) on protease inhibitor-based regimens. But lopinavir/ritonavir (LPV/r) syrup has many challenges in low-income countries, including limited availability, requires refrigeration, interactions with anti-tuberculous drugs, twice-daily dosing, poor palatability in young children, and higher cost than non-nucleoside reverse transcriptase inhibitor (NNRTI) drugs. Successfully initiating LPV/r-based ART in HIV-infected children aged <2 years raises operational challenges that could be simplified by switching to a protease inhibitor-sparing therapy based on efavirenz (EFV), although, to date, EFV is not recommended in children <3 years...
April 24, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28434169/inflammation-immune-activation-and-antiretroviral-therapy-in-hiv
#12
REVIEW
Corrilynn O Hileman, Nicholas T Funderburg
PURPOSE OF REVIEW: This review focuses on the differential effects of contemporary antiretrovirals on systemic inflammation as heightened immune activation is linked to important co-morbidities and mortality with HIV infection. RECENT FINDINGS: Antiretroviral therapy (ART) reduces dramatically systemic inflammation and immune activation, but not to levels synchronous with HIV-uninfected populations. In one ART initiation trial, integrase inhibitors appear to reduce inflammation to a greater degree than non-nucleoside reverse transcriptase inhibitors (NNRTIs); however, it is not clear that there are beneficial effects on inflammation resulting from treatment with integrase inhibitors compared to PIs, between PIs and NNRTIs, between specific nucleoside reverse transcriptase inhibitors, or with maraviroc in ART-naïve patients...
June 2017: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/28407436/optimal-antiretroviral-therapy-adherence-as-evaluated-by-case-index-score-tool-is-associated-with-virological-suppression-in-hiv-infected-adults-in-dakar-senegal
#13
A K Byabene, L Fortes-Déguénonvo, K Niang, M N Manga, A N H Bulabula, J B Nachega, M Seydi
OBJECTIVE: To determine the prevalence and factors associated with optimal antiretroviral therapy (ART) adherence and virological failure (VLF) among HIV-infected adults enrolled in the national ART programme at the teaching hospital of Fann, Dakar, Senegal. METHODS: Cross-sectional study from 1 September 2013 to 30 January 2014. OUTCOMES: (1) optimal ART adherence by the Center for Adherence Support Evaluation (CASE) Index Score (>10) and (2) VLF (HIV RNA > 1000 copies/ml)...
April 13, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28395180/total-cellular-hiv-1-dna-decreases-after-switching-to-raltegravir-based-regimens-in-patients-with-suppressed-hiv-1-rna
#14
Barbara Rossetti, Genny Meini, Claudia Bianco, Silvia Lamonica, Annalisa Mondi, Simone Belmonti, Iuri Fanti, Nicoletta Ciccarelli, Simona Di Giambenedetto, Maurizio Zazzi, Andrea De Luca
BACKGROUND: The integrase inhibitor raltegravir has been used to intensify antiretroviral therapy in patients with undetectable plasma HIV-1RNA, resulting in variable perturbation of HIV-1 nucleic acids levels in peripheral blood. OBJECTIVES: We aimed at monitoring residual plasma HIV-1RNA and total cellular HIV-1DNA in virologically suppressed patients switching to raltegravir-based regimens. STUDY DESIGN: Fifty-eight subjects on protease inhibitor (PI) or nonnucleoside reverse transcriptase inhibitor (NNRTI)-based regimens, with plasma HIV-1RNA levels <40 copies/ml for ≥6 months and CD4 counts >200cells/μl for ≥12 months were enrolled...
March 23, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28390117/different-cell-cycle-modulation-in-skov-3-ovarian-cancer-cell-line-by-anti-hiv-drugs
#15
Angelica Perna, Angela Lucariello, Carmine Sellitto, Iolanda Agliata, Maria Carleo, Vincenzo Sangiovanni, Vincenzo Esposito, Germano Guerra, Luigi Cobellis, Antonio De Luca
Anti-retroviral drugs used for the treatment of Human Immunodeficiency Virus (HIV) have proven to be effective even against cancer. Drawing from this background the aim of our research project was to evaluate the effects of anti-HIV drugs that belong to the Nucleoside and Nucleotide Reverse Transcriptase Inhibitors (NRTI, abacavir and tenofovir), Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTI, efavirenz and etravirine) and Protease Inhibitors (PI, darunavir) on ovarian adenocarcinoma cell line (Skov-3)...
March 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28387865/strengthening-hiv-therapy-and-care-in-rural-tanzania-affects-rates-of-viral-suppression
#16
Alex J Ntamatungiro, Lukas Muri, Tracy R Glass, Stefan Erb, Manuel Battegay, Hansjakob Furrer, Christoph Hatz, Marcel Tanner, Ingrid Felger, Thomas Klimkait, Emilio Letang
Objectives: To assess viral suppression rates, to assess prevalence of acquired HIV drug resistance and to characterize the spectrum of HIV-1 drug resistance mutations (HIV-DRM) in HIV-1-infected patients in a rural Tanzanian HIV cohort. Methods: This was a cross-sectional study nested within the Kilombero and Ulanga Antiretroviral Cohort. Virological failure was defined as HIV-1 RNA ≥50 copies/mL. Risk factors associated with virological failure and with the development of HIV-DRM were assessed using logistic regression...
April 6, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28367698/comparing-the-frequencies-of-contraindicated-drug-drug-interactions-between-differing-antiretroviral-regimens-in-hiv-infected-patients
#17
Bernadette Jakeman, Mona Nasiri, Lindsey Ruth, Caroline Morse, Sheran Mahatme, Nimish Patel
BACKGROUND: HIV-infected patients receiving antiretroviral therapy (ART) are at risk for contraindicated drug-drug interactions (XDDIs). OBJECTIVE: This study compared the frequency of XDDIs between different types of ART regimens. METHODS: A retrospective cohort study was performed among adult HIV-infected patients receiving care at either the Upstate New York Veterans' Healthcare Administration or the University of New Mexico Truman Health Services between 2000 and 2013...
May 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28333295/drug-resistance-in-antiretroviral-naive-children-newly-diagnosed-with-hiv-1-in-manaus-amazonas
#18
Solange Dourado de Andrade, Meritxell Sabidó, Wuelton Marcelo Monteiro, Adele Schwartz Benzaken, Amilcar Tanuri
Objectives: To determine the prevalence of drug resistance mutations (DRM), the prevalence of drug susceptibility [transmitted drug resistance (TDR)] and the prevalence of HIV-1 variants among treatment-naive HIV-infected children in Manaus, Amazonas state, Brazil. Methods: Children born to HIV-infected mothers and diagnosed with HIV in an HIV reference service centre and with available pol sequence between 2010 and 2015 prior to antiretroviral initiation were included...
June 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333232/prevalence-of-hiv-1-drug-resistance-in-treated-patients-with-viral-load-50%C3%A2-copies-ml-a-2014-french-nationwide-study
#19
L Assoumou, C Charpentier, P Recordon-Pinson, M Grudé, C Pallier, L Morand-Joubert, S Fafi-Kremer, A Krivine, B Montes, V Ferré, M Bouvier-Alias, J-C Plantier, J Izopet, M-A Trabaud, S Yerly, J Dufayard, C Alloui, L Courdavault, H Le Guillou-Guillemette, A Maillard, C Amiel, A Vabret, C Roussel, S Vallet, J Guinard, A Mirand, A Beby-Defaux, F Barin, A Allardet-Servent, R Ait-Namane, M Wirden, C Delaugerre, V Calvez, M-L Chaix, D Descamps, S Reigadas
Background: Surveillance of HIV-1 resistance in treated patients with a detectable viral load (VL) is important to monitor, in order to assess the risk of spread of resistant viruses and to determine the proportion of patients who need new antiretroviral drugs with minimal cross-resistance. Methods: The HIV-1 protease and reverse transcriptase (RT) and integrase genes were sequenced in plasma samples from 782 consecutive patients on failing antiretroviral regimens, seen in 37 specialized centres in 2014...
June 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28329390/high-rates-of-transmission-of-drug-resistant-hiv-in-aruba-resulting-in-reduced-susceptibility-to-the-who-recommended-first-line-regimen-in-nearly-half-of-newly-diagnosed-hiv-infected-patients
#20
L Marije Hofstra, Elena Sánchez Rivas, Monique Nijhuis, Leonie E A Bank, Eduan Wilkinson, Karina Kelly, Tania Mudrikova, Rob Schuurman, Tulio de Oliveira, Jaclyn de Kort, Annemarie M J Wensing
Background.: In Western countries emergence of human immunodeficiency virus (HIV) drug resistance has tremendously decreased, and transmission of drug resistance has merely stabilized in recent years. However, in many endemic settings with limited resources rates of emerging and transmitted drug resistance are not regularly assessed. Methods.: We performed a survey including all HIV-infected individuals who received resistance testing in 2010-2015 in Aruba, a highly endemic HIV area in the Caribbean...
April 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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