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https://www.readbyqxmd.com/read/27914856/occult-hiv-1-drug-resistance-to-thymidine-analogues-following-failure-of-first-line-tenofovir-combined-with-a-cytosine-analogue-and-nevirapine-or-efavirenz-in-sub-saharan-africa-a-retrospective-multi-centre-cohort-study
#1
John Gregson, Pontiano Kaleebu, Vincent C Marconi, Cloete van Vuuren, Nicaise Ndembi, Raph L Hamers, Phyllis Kanki, Christopher J Hoffmann, Shahin Lockman, Deenan Pillay, Tulio de Oliveira, Nathan Clumeck, Gillian Hunt, Bernhard Kerschberger, Robert W Shafer, Chunfu Yang, Elliot Raizes, Rami Kantor, Ravindra K Gupta
BACKGROUND: HIV-1 drug resistance to older thymidine analogue nucleoside reverse transcriptase inhibitor drugs has been identified in sub-Saharan Africa in patients with virological failure of first-line combination antiretroviral therapy (ART) containing the modern nucleoside reverse transcriptase inhibitor tenofovir. We aimed to investigate the prevalence and correlates of thymidine analogue mutations (TAM) in patients with virological failure of first-line tenofovir-containing ART...
November 30, 2016: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/27912079/a-humanized-mouse-model-for-hiv-2-infection-and-efficacy-testing-of-a-single-pill-triple-drug-combination-anti-retroviral-therapy
#2
Shuang Hu, Charles Preston Neff, Dipu Mohan Kumar, Yuichiro Habu, Sarah R Akkina, Takahiro Seki, Ramesh Akkina
While HIV-2 is a causative agent for AIDS in addition to the better studied HIV-1, there is currently no suitable animal model for experimental studies for HIV-2 infection and evaluating promising drugs in vivo. Here we evaluated humanized mice for their susceptibility to HIV-2 infection and tested a single-pill three drug formulation of anti-retrovirals (NRTIs abacavir and lamivudine, integrase inhibitor dolutegravir) (trade name, Triumeq(R)). Our results showed that hu-mice are susceptible to HIV-2 infection showing persistent viremia and CD4 T cell loss, key hallmarks of AIDS pathogenesis...
November 29, 2016: Virology
https://www.readbyqxmd.com/read/27904105/evaluation-of-the-lipid-concentrations-after-switching-from-antiretroviral-drug-tenofovir-disoproxil-fumarate-emtricitabine-to-abacavir-sulfate-lamivudine-in-virologically-suppressed-human-immunodeficiency-virus-infected-patients
#3
Hirotaka Arae, Masao Tateyama, Hideta Nakamura, Daisuke Tasato, Kaoru Kami, Kyoko Miyagi, Saori Maeda, Hitoshi Uehara, Makiko Moromi, Katsunori Nakamura, Jiro Fujita
Objective Recently, tenofovir disoproxil fumatate (TDF)-related side effects, such as renal nephrotoxicity and reduction of bone mineral density, have been reported. Consequently, increased switching from fixed-dose tablet TDF and emtricitabine (TDF/FTC) to abacavir and lamivudine (ABC/3TC) has occurred. Interestingly, while TDF has a lipid-lowering property, one of the ABC-related side effects is hyperlipidemia. Therefore, such switching could cause lipid elevation. To evaluate the change in lipid levels associated with switching from TDF/FTC to ABC/3TC in virologically-suppressed human immunodeficiency virus (HIV)-infected patients...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27903949/possible-drug-herb-interaction-between-herbal-supplement-containing-horsetail-equisetum-arvense-and-antiretroviral-drugs-report-of-2-cases
#4
Ezequiel Cordova, Laura Morganti, Claudia Rodriguez
The use of alternative medicines, including herbs, is common among HIV-positive patients, even in those on antiretroviral treatment. Equisetum arvense, known as "horsetail," is mainly used for its diuretic properties. There are limited data about the pharmacological properties of this compound and the potential drug-herb interactions. The authors report 2 cases in which a possible drug-herb interaction may have led to virological breakthrough in patients who were maintained on the same regimen for many years, including lamivudine (3TC)/zidovudine (ZDV)/efavirenz (EFV) and emtricitabine (FTC)/tenofovir (TDF)/EFV, respectively...
November 30, 2016: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/27902714/evaluation-of-the-activity-of-lamivudine-and-zidovudine-against-ebola-virus
#5
Yu Cong, Julie Dyall, Brit J Hart, Lisa Evans DeWald, Joshua C Johnson, Elena Postnikova, Huanying Zhou, Robin Gross, Oscar Rojas, Isis Alexander, Nicole Josleyn, Tengfei Zhang, Julia Michelotti, Krisztina Janosko, Pamela J Glass, Mike Flint, Laura K McMullan, Christina F Spiropoulou, Tim Mierzwa, Rajarshi Guha, Paul Shinn, Sam Michael, Carleen Klumpp-Thomas, Crystal McKnight, Craig Thomas, Ann E Eakin, Kathleen G O'Loughlin, Carol E Green, Paul Catz, Jon C Mirsalis, Anna N Honko, Gene G Olinger, Richard S Bennett, Michael R Holbrook, Lisa E Hensley, Peter B Jahrling
In the fall of 2014, an international news agency reported that patients suffering from Ebola virus disease (EVD) in Liberia were treated successfully with lamivudine, an antiviral drug used to treat human immunodeficiency virus-1 and hepatitis B virus infections. According to the report, 13 out of 15 patients treated with lamivudine survived and were declared free from Ebola virus disease. In this study, the anti-Ebola virus (EBOV) activity of lamivudine and another antiretroviral, zidovudine, were evaluated in a diverse set of cell lines against two variants of wild-type EBOV...
2016: PloS One
https://www.readbyqxmd.com/read/27895016/are-prophylactic-and-therapeutic-target-concentrations-different-the-case-of-lopinavir-ritonavir-or-lamivudine-administered-to-infants-for-the-prevention-of-mother-to-child-hiv-1-transmission-during-breastfeeding
#6
Frantz Foissac, Jörn Blume, Jean-Marc Tréluyer, Thorkild Tylleskär, Chipepo Kankasa, Nicolas Meda, James K Tumwine, Mandisa Singata-Madliki, Kim Harper, Silvia M Illamola, Naïm Bouazza, Nicolas Nagot, Philippe Van de Perre, Stéphane Blanche, Déborah Hirt
The ANRS 12174 trial assessed the efficacy and tolerance of LPV/r versus 3TC prophylaxis administered to breastfed infants, whose HIV-infected mothers were not on ART. In this sub-study, we assessed LPV/r and 3TC pharmacokinetics to evaluate the percentage of infants with therapeutic plasma concentrations and to discuss these data in the context of a prophylactic treatment. Infants from the South African trial site underwent blood sampling for pharmacokinetic study at week 6, 26 and 38 of life. We applied a Bayesian approach to derive the 3TC and LPV pharmacokinetic parameters based on previously published pharmacokinetic models for HIV-infected children...
November 28, 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27890952/a-study-of-antiretroviral-resistance-patterns-in-treatment-experienced-and-naive-human-immunodeficiency-virus-infected-patients
#7
Raj Harjani, Ram Malkani
BACKGROUND: About 10% of the patients had surveillance drug-related mutations for nonnucleoside reverse transcriptase inhibitors (NNRTIs) and protease inhibitors (PIs) in an Indian study. It was also reported that resistance was maximum for nucleoside reverse transcriptase inhibitors (NRTIs) and minimum for PIs. METHODS: The present study was a cross-sectional assessment of 21 human immunodeficiency virus (HIV)-infected individuals attending a HIV care center in a tertiary care center in Mumbai, Maharashtra, India...
July 2016: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/27877054/adefovir-dipivoxil-is-less-expensive-than-lamivudine-and-associated-with-similar-prognosis-in-patients-with-hepatitis-b-virus-related-hepatocellular-carcinoma-after-radical-resection
#8
Jian-Hong Zhong, Yang Ke, Shao-Liang Zhu, Lin Wang, Cheng-Piao Luo, Wen-Feng Gong, Xue-Mei You, Liang Ma, Bang-De Xiang, Le-Qun Li
AIM: Lamivudine (LAM) and adefovir dipivoxil (ADV) are widely used in patients with hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC), but few studies have directly compared their therapeutic efficacy and treatment cost. This study aims to compare LAM with ADV head-to-head in these patients. METHODS: We retrospectively analyzed 201 patients with HBV-related HCC who underwent radical resection and subsequently received LAM (n=155) or ADV (n=46). The two groups were compared in terms of HBV-DNA levels, liver function, antiviral resistance, recurrence-free, and overall survival, as well as antiviral medication costs...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27872640/nucleotide-analogue-related-proximal-renal-tubular-dysfunction-during-long-term-treatment-of-chronic-hepatitis-b-a-cross-sectional-study
#9
Abhasnee Sobhonslidsuk, Jirachaya Wanichanuwat, Pawin Numthavaj, Areepan Sophonsritsuk, Supanna Petraksa, Alongkorn Pugasub, Paisan Jittorntam, Anucha Kongsomgan, Sittiruk Roytrakul, Bunyong Phakdeekitcharoen
Background. There have been few reports of nucleotide analogue-related renal tubular dysfunction (RTD) in CHB patients. We assessed the prevalence and presentation of nucleotide analogue-related proximal RTD. Methods. A cross-sectional study was performed in CHB patients taking nucleotide analogues. Inclusion criteria were patients who were on adefovir or tenofovir as mono- or add-on therapy with lamivudine (LAM) >1 year. Serum and urine were collected. Fractional excretion of phosphate (FEPO4), uric acid (FEUA), and potassium was calculated...
2016: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/27871359/focal-epithelial-hyperplasia-in-adult-patients-with-hiv-infection-clearance-with-topical-imiquimod
#10
Silvia Méndez-Flores, Lilly Esquivel-Pedraza, Amparo Hernández-Salazar, Yann Charli-Joseph, Marcela Saeb-Lima
Case 1 A 41-year-old man with human immunodeficiency virus (HIV) 1 diagnosed 16 years prior to his consultation was referred for an 8-month history of multiple painless lumps in his mouth. He had A2 status (CD4 cell count of 273 cells/mm(3) and viral load of 43,000 copies/L) and was taking treatment with lamivudine/zidovudine (combivir) and efavirenz. Physical examination showed multiple small mucosal-colored and lobulated papulonodules located in the palate and lower gingiva and a whitish verrucous plaque on the lower labial mucosa (Figure 1a)...
2016: Skinmed
https://www.readbyqxmd.com/read/27862721/efficacy-and-safety-of-tenofovir-disoproxil-fumarate-rescue-therapy-for-chronic-hepatitis-b-patients-who-failed-other-nucleos-t-ide-analogues
#11
Hiromitsu Kumada, Kazuhiko Koike, Kazuaki Suyama, Hiroshi Ito, Hiroshi Itoh, Wataru Sugiura
OBJECTIVE: Acquisition of nucleos(t)ide analogue (NA) inhibitors resistance is critical in successful chronic hepatitis B treatment. As the pattern of tenofovir disoproxil fumarate (TDF) resistance mutations differs from that of other antiviral drugs, we sought to clarify the salvaging potential of TDF in HBV patients who are poor responders or resistant to other NAs. MATERIALS AND METHOD: A prospective, multi-center, one-arm, open-label study was conducted from December 2011 to October 2014...
November 15, 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/27859251/a-randomized-two-way-crossover-bioequivalence-study-in-healthy-adult-volunteers-of-paediatric-zidovudine-lamivudine-nevirapine-fast-disintegrating-fixed-dose-combination-tablet
#12
Anjali Joshi, Daniel Gbadero, Fredrick Esseku, Olufikayo J Adesanya, Moji C Adeyeye
OBJECTIVE: The bioequivalence study was conducted to compare the developed paediatric fixed-dose combination (FDC) zidovudine/lamivudine/nevirapine (60/30/50 mg) tablet - the test formulation - with the combined mixture of single-entity innovator products (reference product). METHODS: A single-dose open-label randomized two-way crossover study was conducted in healthy adult African volunteers after an informed consent was obtained. The 24 volunteers, divided into two groups, were administered the products after an overnight fast on two treatment days with 14 days of washout period...
November 18, 2016: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/27847098/lamivudine-switch-therapy-in-chronic-hepatitis-b-patients-achieving-undetectable-hepatitis-b-virus-dna-after-3-years-of-entecavir-therapy-a-prospective-open-label-multicenter-study
#13
Ming-Lun Yeh, Ching-I Huang, Ming-Yen Hsieh, Chung-Feng Huang, Meng-Hsuan Hsieh, Jee-Fu Huang, Chia-Yen Dai, Zu-Yau Lin, Shinn-Chern Chen, Ming-Lung Yu, Wan-Long Chuang
The subsequent maintenance therapy in chronic hepatitis B (CHB) patients after long-term viral replication suppression is still uncertain. We aim to evaluate the efficacy of lamivudine (LAM) maintenance therapy in CHB patients achieving undetectable hepatitis B virus (HBV) DNA after 3 years of entecavir (ETV) therapy. Consecutive CHB patients who received at least 3 years of ETV and achieved HBV DNA negativity were allocated either LAM switch therapy or stopped ETV therapy in a prospective, open-label study...
November 2016: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/27846791/clinical-experience-with-dolutegravir-abacavir-lamivudine-in-hiv-hcv-co-infected-patients-treated-with-a-sofosbuvir-based-regimen-safety-and-efficacy
#14
Tamara M Johnson, Raymund Sison, James P Fallon, Prerak P Shukla, Sristi Bhattarai, Herbert Galang, Richard Habeeb, Jihad Slim
BACKGROUND: There is no known reason to suspect an adverse drug interaction between dolutegravir-based antiretroviral therapy and sofosbuvir, simeprevir, or ledipasvir. There is a paucity of clinical data for this combination. METHODS: Prospective, open-label study of patients with HIV well controlled on dolutegravir, abacavir, and lamivudine, who were co-infected with HCV genotype 1, and required therapy with simeprevir plus sofosbuvir or sofosbuvir/ledipasvir single-tablet regimen (STR) for 12 weeks...
November 2016: HIV Clinical Trials
https://www.readbyqxmd.com/read/27835613/efficacy-and-safety-of-tenofovir-containing-antiretroviral-therapy-in-women-who-acquired-hiv-while-enrolled-in-tenofovir-gel-prophylaxis-trials
#15
Nivashnee Naicker, Anushka Naidoo, Lise Werner, Nigel Garrett, Nelisile Majola, Villeshni Asari, Cheryl Baxter, Anneke Grobler, Quarraisha Abdool Karim, Salim S Abdool Karim
BACKGROUND: We assessed whether women who acquired HIV during tenofovir gel prophylaxis trials can be safely and effectively treated with tenofovir-containing antiretroviral therapy (ART). METHODS: Between May 2011 and October 2014, HIV seroconvertors from two tenofovir gel trials were recruited when eligible for ART (CD4 count <350 cells/μl, pregnancy or AIDS-defining illness). Women were randomised to tenofovir-containing (tenofovir + lamivudine/emtricitabine + efavirenz) or tenofovir-sparing (zidovudine + lamivudine/emtricitabine + efavirenz) antiretroviral treatment regimens...
November 4, 2016: Antiviral Therapy
https://www.readbyqxmd.com/read/27822262/a-cost-utility-and-cost-effectiveness-analysis-of-different-oral-antiviral-medications-in-patients-with-hbeag-negative-chronic-hepatitis-b-in-iran-an-economic-microsimulation-decision-model
#16
Khosro Keshavarz, Abbas Kebriaeezadeh, Seyed Moayed Alavian, Ali Akbari Sari, Mohsen Rezaei Hemami, Farhad Lotfi, Amir Hashemi Meshkini, Mehdi Javanbakht, Maryam Keshvari, Shekoufeh Nikfar
BACKGROUND: Although hepatitis B infection is the major cause of chronic liver disease in Iran, no studies have employed economic evaluations of the medications used to treat Iranian patients with chronic hepatitis B (CHB). Therefore, the cost-effectiveness of the different treatment options for this disease in Iran is unknown. OBJECTIVES: The aim of this study was to compare the cost utility and cost-effectiveness of medication strategies tailored to local conditions in patients with HB e antigen (HBeAg)-negative CHB infection in Iran...
September 2016: Hepatitis Monthly
https://www.readbyqxmd.com/read/27818734/coconut-oil-extract-mitigates-testicular-injury-following-adjuvant-treatment-with-antiretroviral-drugs
#17
Oluwatosin O Ogedengbe, Ayoola I Jegede, Ismail O Onanuga, Ugochukwu Offor, Edwin Cs Naidu, Aniekan I Peter, Onyemaechi O Azu
Increased access to highly active antiretroviral therapy (HAART) has made the management of drug toxicities an increasingly crucial component of HIV. This study investigated the effects of adjuvant use of coconut oil and HAART on testicular morphology and seminal parameters in Sprague- Dawley rats. Twelve adult male Sprague-Dawley rats, weighing 153~169 g were distributed into four groups (A-D) and treated as follows: A served as control (distilled water); B (HAART cocktail- Zidovudine, Lamivudine and Nevirapine); C (HAART + Virgin coconut oil 10 mL/kg) and D (Virgin coconut oil 10 mL/kg)...
October 2016: Toxicological Research
https://www.readbyqxmd.com/read/27818588/update-on-occult-hepatitis-b-virus-infection
#18
REVIEW
Manoochehr Makvandi
The event of mutations in the surface antigen gene of hepatitis B virus (HBV) results in undetectable hepatitis B surface antigen with positive/negative anti-hepatitis B core (anti-HBc) antibody status in serum and this phenomenon is named occult hepatitis B infection (OBI). The presence of anti-HBc antibody in serum is an important key for OBI tracking, although about 20% of OBI cases are negative for anti-HBc antibody. The diagnosis of OBI is mainly based on polymerase chain reaction (PCR) and real-time PCR assays...
October 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27815068/body-composition-and-metabolic-outcomes-after-96-weeks-of-treatment-with-ritonavir-boosted-lopinavir-plus-either-nucleoside-or-nucleotide-reverse-transcriptase-inhibitors-or-raltegravir-in-patients-with-hiv-with-virological-failure-of-a-standard-first-line
#19
Mark A Boyd, Janaki Amin, Patrick W G Mallon, Nagalingeswaran Kumarasamy, Johan Lombaard, Robin Wood, Ploenchan Chetchotisakd, Praphan Phanuphak, Lerato Mohapi, Iskandar Azwa, Waldo H Belloso, Jean-Michel Molina, Jennifer Hoy, Cecilia L Moore, Sean Emery, David A Cooper
BACKGROUND: Lipoatrophy is one of the most feared complications associated with the use of nucleoside or nucleotide reverse transcriptase inhibitors (N[t]RTIs). We aimed to assess soft-tissue changes in participants with HIV who had virological failure of a first-line antiretroviral (ART) regimen containing a non-nucleoside reverse transcriptase inhibitor plus two N(t)RTIs and were randomly assigned to receive a second-line regimen containing a boosted protease inhibitor given with either N(t)RTIs or raltegravir...
November 1, 2016: Lancet HIV
https://www.readbyqxmd.com/read/27806243/benefits-and-risks-of-antiretroviral-therapy-for-perinatal-hiv-prevention
#20
Mary G Fowler, Min Qin, Susan A Fiscus, Judith S Currier, Patricia M Flynn, Tsungai Chipato, James McIntyre, Devasena Gnanashanmugam, George K Siberry, Anne S Coletti, Taha E Taha, Karin L Klingman, Francis E Martinson, Maxensia Owor, Avy Violari, Dhayendre Moodley, Gerhard B Theron, Ramesh Bhosale, Raziya Bobat, Benjamin H Chi, Renate Strehlau, Pendo Mlay, Amy J Loftis, Renee Browning, Terence Fenton, Lynette Purdue, Michael Basar, David E Shapiro, Lynne M Mofenson
Background Randomized-trial data on the risks and benefits of antiretroviral therapy (ART) as compared with zidovudine and single-dose nevirapine to prevent transmission of the human immunodeficiency virus (HIV) in HIV-infected pregnant women with high CD4 counts are lacking. Methods We randomly assigned HIV-infected women at 14 or more weeks of gestation with CD4 counts of at least 350 cells per cubic millimeter to zidovudine and single-dose nevirapine plus a 1-to-2-week postpartum "tail" of tenofovir and emtricitabine (zidovudine alone); zidovudine, lamivudine, and lopinavir-ritonavir (zidovudine-based ART); or tenofovir, emtricitabine, and lopinavir-ritonavir (tenofovir-based ART)...
November 3, 2016: New England Journal of Medicine
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