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https://www.readbyqxmd.com/read/27911718/attacking-hiv-1-rna-versus-dna-by-sequence-specific-approaches-rnai-versus-crispr-cas
#1
REVIEW
Elena Herrera-Carrillo, Ben Berkhout
Human immunodeficiency virus type 1 (HIV-1) infection can be effectively controlled by potent antiviral drugs, but this never results in a cure. The patient should therefore take these drugs for the rest of his/her life, which can cause drug-resistance and adverse effects. Therefore, more durable therapeutic strategies should be considered, such as a stable gene therapy to protect the target T cells against HIV-1 infection. The development of potent therapeutic regimens based on the RNA interference (RNAi) and clustered regularly interspaced short palindromic repeats (CRISPR-Cas) mechanisms will be described, which can be delivered by lentiviral vectors...
October 15, 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/27910154/interferon-free-regimens-improve-portal-hypertension-and-histological-necroinflammation-in-hiv-hcv-patients-with-advanced-liver-disease
#2
P Schwabl, M Mandorfer, S Steiner, B Scheiner, D Chromy, M Herac, T Bucsics, H Hayden, K Grabmeier-Pfistershammer, A Ferlitsch, G Oberhuber, M Trauner, M Peck-Radosavljevic, T Reiberger
BACKGROUND: HIV/HCV co-infected patients show accelerated fibrosis progression and higher risk for complications of portal hypertension (PHT). AIM: To assess the effects of interferon-free therapy on portal pressure, liver histology and plasma biomarkers in HIV/HCV-coinfected patients with PHT. METHODS: Twenty-two patients with paired hepatic venous pressure gradient (HVPG) measurements prior and after successful treatment (SVR) with interferon-free regimens were included...
January 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27906037/integrated-therapy-for-hiv-and-cryptococcosis
#3
REVIEW
Sirawat Srichatrapimuk, Somnuek Sungkanuparph
Cryptococcosis has been one of the most common opportunistic infections and causes of mortality among HIV-infected patients, especially in resource-limited countries. Cryptococcal meningitis is the most common form of cryptococcosis. Laboratory diagnosis of cryptococcosis includes direct microscopic examination, isolation of Cryptococcus from a clinical specimen, and detection of cryptococcal antigen. Without appropriate treatment, cryptococcosis is fatal. Early diagnosis and treatment is the key to treatment success...
November 29, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906024/rate-of-initial-highly-active-anti-retroviral-therapy-regimen-change-and-its-predictors-among-adult-hiv-patients-at-university-of-gondar-referral-hospital-northwest-ethiopia-a-retrospective-follow-up-study
#4
Degefaye Zelalem Anlay, Zinahbizu Abay Alemayehu, Berihun Assefa Dachew
BACKGROUND: Regimen change is a major challenge for the sustainability of human immunodeficiency virus (HIV) treatment program. In a resource limited setting where treatment options are limited, designing strategies to increase the durability of original regimen are essential. However, information's on rate of initial regimen change and its predictors is scarce in Ethiopia. Therefore, the purpose of this study was to assess the rate of initial highly active anti retroviral therapy (HAART) regimen change and its predictors among adult HIV patients at the University of Gondar Referral Hospital, Northwest Ethiopia...
February 17, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906013/combination-of-long-acting-hiv-fusion-inhibitor-albuvirtide-and-lpv-r-showed-potent-efficacy-in-hiv-1-patients
#5
Hongwei Zhang, Ronghua Jin, Cheng Yao, Tong Zhang, Meixia Wang, Wei Xia, Haiyan Peng, Xiaojuan Wang, Rongjian Lu, Changjin Wang, Dong Xie, Hao Wu
BACKGROUND: Long acting antiretroviral drugs represent a promising approach for chronic treatment of HIV infection. Here, we study the efficacy and safety of albuvirtide (ABT), an HIV-1 fusion inhibitor with a half life of 11-12 days in human. METHODS: ABT was evaluated in a 7-week, open-label and randomized trial, combining with LPV/r. Twenty HIV-1-infected adults were assigned to two dose groups, receiving ABT (160 or 320 mg) given weekly and LPV/r given twice daily...
February 10, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27906006/integrated-therapy-for-hiv-and-tuberculosis
#6
REVIEW
Weerawat Manosuthi, Surasak Wiboonchutikul, Somnuek Sungkanuparph
Tuberculosis (TB) has been the most common opportunistic infection and cause of mortality among HIV-infected patients, especially in resource-limited countries. Clinical manifestations of TB vary and depend on the degree of immunodeficiency. Sputum microscopy and culture with drug-susceptibility testing are recommended as a standard method for diagnosing active TB. TB-related mortality in HIV-infected patients is high especially during the first few months of treatment. Integrated therapy of both HIV and TB is feasible and efficient to control the diseases and yield better survival...
May 12, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27905999/factors-associated-with-hiv-viral-load-blips-and-the-relationship-between-self-reported-adherence-and-efavirenz-blood-levels-on-blip-occurrence-a-case-control-study
#7
Aaron Farmer, Xun Wang, Anuradha Ganesan, Robert G Deiss, Brian K Agan, Thomas A O'Bryan, Kevin Akers, Jason F Okulicz
BACKGROUND: The uncertain etiology of HIV viral load (VL) blips may lead to increased use of clinical resources. We evaluated the association of self-reported adherence (SRA) and antiretroviral (ART) drug levels on blip occurrence in US Military HIV Natural History Study (NHS) participants who initiated the single-tablet regimen efavirenz/emtricitabine/tenofovir disoproxil fumarate (EFV/FTC/TDF). METHODS: ART-naïve NHS participants started on EFV/FTC/TDF between 2006 and 2013 who achieved VL suppression (<50 copies/mL) within 12 months and had available SRA and stored plasma samples were included...
March 22, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27905987/factors-associated-with-the-first-antiretroviral-therapy-modification-in-older-hiv-1-positive-patients
#8
Justyna D Kowalska, Joanna Kubicka, Ewa Siwak, Piotr Pulik, Ewa Firląg-Burkacka, Andrzej Horban
BACKGROUND: Rates of first antiretroviral therapy (cART) modifications are high in most observational studies. The age-related differences in treatment duration and characteristics of first cART modifications remain underinvestigated. With increasing proportion of older patients in HIV population it is important to better understand age-related treatment effects. METHODS: Patients were included into this analysis, if being cART naïve at the first visit at the clinic...
January 7, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27903949/possible-drug-herb-interaction-between-herbal-supplement-containing-horsetail-equisetum-arvense-and-antiretroviral-drugs-report-of-2-cases
#9
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/27903948/characterizing-patients-with-very-low-level-hiv-viremia-a-community-based-study
#10
Elie Helou, Sheela Shenoi, Tassos Kyriakides, Marie-Louise Landry, Michael Kozal, Lydia Aoun Barakat
OBJECTIVE: Very-low-level viremia (VLLV) is a relatively new concept in the realm of human immunodeficiency virus (HIV) care. Newer generation assays are now able to detect plasma HIV RNA Viral Load (VL) levels as low as 20 copies/mL. The authors characterized patients with VLLV (VL between 20 and 50 copies/mL) in order to identify possible risk factors associated with virologic failure and poor clinical outcomes. METHODS: The authors reviewed 119 consecutive charts of patients with VLLV...
November 30, 2016: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/27898686/gut-homing-cd4-and-cd8-t-cell-frequencies-in-hiv-infected-individuals-on-antiretroviral-treatment
#11
Olivia Briceño, Sandra Pinto-Cardoso, Nataly Rodríguez-Bernabe, Akio Murakami-Ogasawara, Gustavo Reyes-Terán
The depletion of mucosal CD4+ T-cells occurs early in HIV infection and despite years on antiretroviral treatment (ART), this population never reconstitutes to pre-HIV infection levels. In an effort to understand the effect of ART initiation and different ART regimens on the reconstitution of mucosal T cells within the gut associated lymphoid tissue (GALT), we quantified the frequency of CD4+ and CD8+ T cells expressing the gut homing receptors CCR9 and β7 in peripheral blood (PB) of HIV infected individuals naive to ART and treated individuals on both short-term (less than a year) and long-term ART (more than 2 years)...
2016: PloS One
https://www.readbyqxmd.com/read/27898591/tenofovir-exposure-in-utero-and-linear-growth-in-hiv-exposed-uninfected-infants
#12
Stanzi M le Roux, Jennifer Jao, Kirsty Brittain, Tamsin K Phillips, Seun Olatunbosun, Agnes Ronan, Allison Zerbe, Elaine J Abrams, Landon Myer
OBJECTIVE: Tenofovir (TDF) affects bone health and is widely used in pregnancy but data are limited on the effects of TDF exposure in utero. We examined the association between duration of in-utero TDF exposure and linear growth in HIV-exposed, uninfected (HEU) infants. DESIGN: A prospective cohort of pregnant women initiating TDF-containing regimens at primary care services in Cape Town, South Africa, were enrolled and followed with their breastfeeding infants through 12 months postpartum...
January 2, 2017: AIDS
https://www.readbyqxmd.com/read/27895236/a-review-of-single-tablet-regimens-for-the-treatment-of-hiv-1-infection
#13
REVIEW
Jamielynn C Sebaaly, Denise Kelley
OBJECTIVE: To review the pharmacokinetics, safety, drug-drug interactions, and advantages and disadvantages of currently available single-tablet regimens (STRs) for HIV-1 infection. DATA SOURCES: A search using PubMed was conducted (up to September 2016) using the following keywords: single tablet regimen AND HIV Additionally, a PubMed search was conducted for each individual STR using the generic names of the agents. Articles were evaluated for content, and additional references were identified from a review of literature citations...
November 27, 2016: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/27894862/hiv-drug-resistance-testing-among-patients-failing-second-line-antiretroviral-therapy-comparison-of-in-house-and-commercial-sequencing
#14
Benjamin Chimukangara, Bhavini Varyani, Tinei Shamu, Junior Mutsvangwa, Justen Manasa, Elizabeth White, Cleophas Chimbetete, Ruedi Luethy, David Katzenstein
INTRODUCTION: HIV genotyping is often unavailable in low and middle-income countries due to infrastructure requirements and cost. We compared genotype resistance testing in patients with virologic failure, by amplification of HIV pol gene, followed by "in-house" sequencing and commercial sequencing. METHODS: Remnant plasma samples from adults and children failing second-line ART were amplified and sequenced using in-house and commercial di-deoxysequencing, and analyzed in Harare, Zimbabwe and at Stanford, U...
November 25, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/27894270/evaluation-of-tolerability-with-the-co-formulation-elvitegravir-cobicistat-emtricitabine-and-tenofovir-disoproxil-fumarate-for-post-hiv-exposure-prophylaxis
#15
Nadia Valin, Laurent Fonquernie, Anne Daguenel, Pauline Campa, Theresita Anthony, Marguerite Guiguet, Pierre Marie Girard, Marie Caroline Meyohas
BACKGROUND: The preferred regimen for HIV post-exposure prophylaxis (PEP) is based mainly on safety and tolerability because it is given to immunocompetent people without HIV infection for a limited time (28 days). The frequency of adverse events (AEs) may be > 60%. Although AEs are generally not severe, they can lead to lack of adherence and failure to complete the regimen. We evaluated the co-formulation elvitegravir, cobicistat, emtricitabine, and tenofovir disoproxil fumarate (Stribild(®)) prescribed as one pill taken once daily for HIV PEP in terms of tolerability and adherence...
November 29, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27893693/two-case-reports-of-severe-myocarditis-associated-with-the-initiation-of-dolutegravir-treatment-in-hiv-patients
#16
Keren Mahlab-Guri, Ilan Asher, Shira Rosenberg-Bezalel, Daniel Elbirt, Michael Burke, Zev M Sthoeger
RATIONALE: The integrase inhibitor dolutegravir is now recommended as first-line treatment for HIV. A single case of myocarditis after treatment with dolutegravir was reported in the FLAMINGO trial. We present here 2 cases of severe myocarditis that occurred shortly after the initiation of dolutegravir treatment. PATIENTS CONCERNS: The first case is a 45-year-old female who developed severe congestive heart failure and died, weeks after the initiation of dolutegravir treatment (for simplification of her antiretroviral regimen)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27889592/marijuana-effects-on-changes-in-brain-structure-and-cognitive-function-among-hiv-and-hiv-adults
#17
April D Thames, Taylor P Kuhn, Timothy J Williamson, Jacob D Jones, Zanjbeel Mahmood, Andrea Hammond
BACKGROUND: The current study examined the independent and interactive effects of HIV and marijuana (MJ) use on brain structure and cognitive function among a sample of HIV-positive (HIV+) and HIV-negative (HIV-) individuals. METHODS: Participants (HIV+, n=48; HIV-, n=29) individuals underwent cognitive testing, questionnaires about substance use, and brain MRI. The HIV+ group was clinically stable based upon current plasma CD4 count, 50% had undetectable viral load (i...
November 14, 2016: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/27887646/it-s-complicated-why-do-tuberculosis-patients-not-initiate-or-stay-adherent-to-treatment-a-qualitative-study-from-south-africa
#18
Donald Skinner, Mareli Claassens
BACKGROUND: Individuals who test positive for active tuberculosis (TB) but do not initiate treatment present a challenge to TB programmes because they contribute to ongoing transmission within communities. To better understand why individuals do not initiate treatment, or are adherent after initiating treatment, South African respondents were approached to obtain insights as to which factors enabled and inhibited the treatment process. METHODS: This qualitative work was nested in a larger study investigating initial loss to follow-up (LTFU) amongst new smear positive TB patients across five provinces of South Africa...
November 25, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27882706/high-frequency-of-potential-interactions-between-direct-acting-antivirals-and-concomitant-therapy-in-hiv-hepatitis-c-virus-coinfected-patients-in-clinical-practice
#19
J Macías, P Monge, M Mancebo, N Merchante, K Neukam, L M Real, J A Pineda
OBJECTIVES: The aim of the study was to analyse the frequency and degree of potential drug-drug interactions (DDIs) between direct-acting antivirals (DAAs) and concomitant medication used by HIV/hepatitis C virus (HCV)-coinfected patients, including antiretroviral therapy (ART) and other drugs. METHODS: All patients with HIV infection and viraemic HCV genotype 1, 3 or 4 coinfection attending a tertiary care centre in Spain (November 2014 to November 2015) were included in the study...
November 24, 2016: HIV Medicine
https://www.readbyqxmd.com/read/27879316/structure-based-design-of-cyclically-permuted-hiv-1-gp120-trimers-that-elicit-neutralizing-antibodies
#20
Sannula Kesavardhana, Raksha Das, Michael Citron, Rohini Datta, Linda Ecto, Nonavinakere Seetharam Srilatha, Daniel DiStefano, Ryan Swoyer, Joseph G Joyce, Somnath Dutta, Celia C LaBranche, David C Montefiori, Jessica A Flynn, Raghavan Varadarajan
A major goal for HIV-1 vaccine development is an ability to elicit strong and durable broadly neutralizing antibody (bNAb) responses. The trimeric envelope glycoprotein (Env) spikes on HIV-1 are known to contain multiple epitopes that are susceptible to bNAbs isolated from infected individuals. Nonetheless, all trimeric and monomeric Env immunogens designed to date have failed to elicit such antibodies. We report the structure guided design of HIV-1 cyclically permuted gp120 that forms homogeneous, stable trimers and displays enhanced binding to multiple bNAbs, including VRC01, VRC03, VRC-PG04, PGT128 and the quaternary epitope-specific bNAbs PGT145 and PGDM1400...
November 22, 2016: Journal of Biological Chemistry
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