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AIDS Research and Therapy

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https://www.readbyqxmd.com/read/28750647/high-level-of-hiv-1-drug-resistance-mutations-in-patients-with-unsuppressed-viral-loads-in-rural-northern-south-africa
#1
Elizabeth M Etta, Lufuno Mavhandu, Cecile Manhaeve, Keanan McGonigle, Patrick Jackson, David Rekosh, Marie-Louise Hammarskjold, Pascal O Bessong, Denis M Tebit
BACKGROUND: Combination antiretroviral therapy (cART) has significantly reduced HIV morbidity and mortality in both developed and developing countries. However, the sustainability of cART may be compromised by the emergence of viral drug resistance mutations (DRM) and the cellular persistence of proviruses carrying these DRM. This is potentially a more serious problem in resource limited settings. METHODS: DRM were evaluated in individuals with unsuppressed viral loads after first or multiple lines of cART at two sites in rural Limpopo, South Africa...
July 27, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28747190/bone-mineral-density-in-people-living-with-hiv-a-narrative-review-of-the-literature
#2
REVIEW
M J Kruger, T A Nell
Bone health status is largely absent in South Africa, the main reasons being the absence and cost-effectiveness of specific screening equipment for assessing bone mineral density (BMD). Various risk factors seem to play a role, some of which can be modified to change bone health status. Urbanisation is also a public health concern. Changing nutritional, as well as social behaviour, play integral roles in the prevalence and incidence of decreased BMD. Furthermore, human immunodeficiency virus (HIV) specifically, has a negative impact on BMD and although highly active antiretroviral therapy increases the prognosis for HIV-infected individuals, BMD still seem to decrease further...
July 26, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28720147/safety-and-immunogenicity-of-the-quadrivalent-human-papillomavirus-qhpv-vaccine-in-hiv-positive-spanish-men-who-have-sex-with-men-msm
#3
Carmen Hidalgo-Tenorio, Jessica Ramírez-Taboada, Concepción Gil-Anguita, Javier Esquivias, Mohamed Omar-Mohamed-Balgahata, Antonio SamPedro, Miguel Lopez-Ruz, Juan Pasquau
BACKGROUND: Safety and immunogenicity of the quadrivalent human papillomavirus (qHPV) vaccine were evaluated in HIV-positive Spanish MSM. The prevalence of High Squamous Intraepithelial Lesions (HSIL) and genotypes of high-risk human papillomavirus (HR-HPV) were also determined, as well as risk factors associated with the presence of HR-HPV in anal mucosa. METHODS: This is a randomised, double blind, placebo-controlled trial of the quadrivalent HPV (qHPV) vaccine...
July 18, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28716149/transition-into-adult-care-factors-associated-with-level-of-preparedness-among-adolescents-living-with-hiv-in-cambodia
#4
Siyan Yi, Chanrith Ngin, Khuondyla Pal, Vohith Khol, Sovannary Tuot, Sokunmealiny Sau, Pheak Chhoun, Gitau Mburu, Sok Chamreun Choub, Kolab Chhim, Penhsun Ly
BACKGROUND: Preparing adolescents for transition into adult care and supporting their acquisition of self-health care management skills is a critical determinant of their post-transition HIV care outcomes. However, there is a scarcity of research on effective transition strategies. This study explores factors associated with adolescent preparedness for transition into adult care in Cambodia. METHODS: In August 2016, a cross-sectional study was conducted among 223 adolescents living with HIV aged 15-17, randomly selected from 11 antiretroviral therapy clinics, utilizing a structured questionnaire...
July 17, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28705213/the-therapeutic-landscape-of-hiv-1-via-genome-editing
#5
REVIEW
Alexander Kwarteng, Samuel Terkper Ahuno, Godwin Kwakye-Nuako
Current treatment for HIV-1 largely relies on chemotherapy through the administration of antiretroviral drugs. While the search for anti-HIV-1 vaccine remain elusive, the use of highly active antiretroviral therapies (HAART) have been far-reaching and has changed HIV-1 into a manageable chronic infection. There is compelling evidence, including several side-effects of ARTs, suggesting that eradication of HIV-1 cannot depend solely on antiretrovirals. Gene therapy, an expanding treatment strategy, using RNA interference (RNAi) and programmable nucleases such as meganuclease, zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), and clustered regularly interspaced short palindromic repeats/CRISPR-associated proteins (CRISPR-Cas9) are transforming the therapeutic landscape of HIV-1...
July 14, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28623917/the-dynamic-changes-of-interferon-lambdas-related-genes-and-proteins-in-jak-stat-pathway-in-both-acute-and-chronic-hiv-1-infected-patients
#6
Guoxian Zhao, Lifeng Liu, Bin Su, Tong Zhang, Peng Chen, Wei Li, Hao Wu
BACKGROUND: Host immune responses during acute HIV-1 infection can influence the viral setpoint, which is a predictor of disease progression. Interferon (IFN)-lambdas are newly classified type III interferons, which use JAK-STAT pathway. Currently, the dynamics of IFN-lambdas related genes and proteins expression in the signaling pathway have not been well elaborated, especially in acute HIV-1-infected patients. OBJECTIVES: To evaluate the dynamic changes of IFN-lambdas related genes and proteins in JAK/STAT pathway in acute HIV-1-infected patients, and analyze their correlation with CD4 T cell counts and HIV-1 viral loads...
June 17, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28558783/clinical-characteristics-predictors-of-immune-reconstitution-inflammatory-syndrome-and-long-term-prognosis-in-patients-with-kaposi-sarcoma
#7
Patricia Volkow, Gabriela Cesarman-Maus, Pamela Garciadiego-Fossas, Enrique Rojas-Marin, Patricia Cornejo-Juárez
OBJECTIVE: To investigate the predictive factors for the development of Kaposi sarcoma-related immune reconstitution inflammatory syndrome (KS-IRIS) and long-term prognosis in patients starting combined antiretroviral therapy (cART). METHODS: We studied a retrospective-cohort of consecutive antiretroviral-naïve patients with KS initiating cART from January 2005 to December 2011 and followed through June 2013. KS-IRIS was defined as ≥2 of the following: abrupt increase in number of KS lesions, appearance or exacerbation of lung-opacities or lymphedema, concomitantly with an increase in CD4+ cell-count ≥50 cells/mm(3) and a decrease of >1 log in viral-load once started cART...
May 30, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28482927/the-developmental-effects-of-hiv-and-alcohol-a-comparison-of-gestational-outcomes-among-babies-from-south-african-communities-with-high-prevalence-of-hiv-and-alcohol-use
#8
Kirsten A M Donald, Anne Fernandez, Kasey Claborn, Caroline Kuo, Nastassja Koen, Heather Zar, Dan J Stein
BACKGROUND: There is growing evidence of the negative impact of alcohol on morbidity and mortality of individuals living with HIV but limited evidence of in utero effects of HIV and alcohol on exposure on infants. METHODS: We conducted a population-based birth cohort study (N = 667 mother-infant dyads) in South Africa to investigate whether maternal alcohol use and HIV affected gestational outcomes. Descriptive data analysis was conducted for all variables using frequency distributions, measures of central tendency, and estimates of variance...
May 8, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28431556/factors-associated-with-loss-to-follow-up-after-occupational-hiv-exposure-in-cape-town-south-africa-a-retrospective-cohort-study
#9
Nectarios Sophocles Papavarnavas, Kathryn Manning, Fahd Conrad, Milah Govender, Gary Maartens
BACKGROUND: There is limited data on factors associated with loss to follow-up (LTFU) of health care workers (HCWs) following occupational exposure to HIV, and most studies were conducted in an era when poorly tolerated antiretrovirals like zidovudine were used. METHODS: A retrospective cohort study was conducted of HCWs attending a referral hospital's Occupational Health Clinic in Cape Town, South Africa for post-exposure prophylaxis (PEP) during a period when tenofovir was available...
April 21, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28376825/antiretroviral-therapy-supply-chain-quality-control-and-assurance-in-improving-people-living-with-hiv-therapeutic-outcomes-in-cameroon
#10
M P Ngogang Djobet, David Singhe, Julienne Lohoue, Christopher Kuaban, Jeanne Ngogang, Ernest Tambo
BACKGROUND: Evaluation of medication efficacy and safety is an essential guarantee to successful therapeutic outcome in public health practices. However, larger distribution chain supply in developing countries such as Cameroon is often challenged by counterfeit drugs, poor manufacturing, storage and degradation leading to health and patient adverse consequences. Yet, access to supply chain management in strengthening ARVs quality assurance and outcomes remains poorly documented. More than 53,000 patients have been enrolled on free ARVs medications, but little is documented on quality assurance and validity of safety for affected populations along the supply chain management since 2008...
April 4, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28376815/comparison-of-six-methods-to-estimate-adherence-in-an-art-na%C3%A3-ve-cohort-in-a-resource-poor-setting-which-best-predicts-virological-and-resistance-outcomes
#11
Catherine Orrell, Karen Cohen, Rory Leisegang, David R Bangsberg, Robin Wood, Gary Maartens
BACKGROUND: Incomplete adherence to antiretroviral therapy (ART) results in virologic failure and resistance. It remains unclear which adherence measure best predicts these outcomes. We compared six patient-reported and objective adherence measures in one ART-naïve cohort in South Africa. METHODS: We recruited 230 participants from a community ART clinic and prospectively collected demographic data, CD4 count and HIV-RNA at weeks 0, 16 and 48. We quantified adherence using 3-day self-report (SR), clinic-based pill count (CPC), average adherence by pharmacy refill (PR-average), calculation of medication-free days (PR-gaps), efavirenz therapeutic drug monitoring (TDM) and an electronic adherence monitoring device (EAMD)...
April 4, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28351430/clinical-outcomes-and-loss-to-follow-up-among-people-living-with-hiv-participating-in-the-namweza-intervention-in-dar-es-salaam-tanzania-a-prospective-cohort-study
#12
Hellen N Siril, Sylvia F Kaaya, Mary Kay Smith Fawzi, Expeditho Mtisi, Magreat Somba, Japheth Kilewo, Ferdinand Mugusi, Anna Minja, Anna Kaale, Jim Todd
BACKGROUND: Psychosocial factors have been linked with loss to follow-up (LTFU) and clinical outcomes among people living with HIV (PLH), however little is known about the effect of psychosocial support on LTFU among PLH in treatment and care. The purpose of this study was to explore the effect of NAMWEZA ("Yes, together we can") friends' psychosocial support intervention on clinical outcomes and LTFU among PLH. NAMWEZA is based on a novel program using "appreciative inquiry", positive psychology approaches to empower, promote positive attitudes and foster hope...
March 28, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28320431/barriers-to-uptake-of-early-infant-hiv-testing-in-zambia-the-role-of-intimate-partner-violence-and-hiv-status-disclosure-within-couples
#13
Karen M Hampanda, Abigail M Nimz, Lisa L Abuogi
BACKGROUND: Early detection of pediatric HIV through uptake of infant HIV testing is critical for access to treatment and child survival. While structural barriers have been well described, a greater understanding of social and behavioral factors that may relate to maternal uptake of early infant HIV testing services is urgently needed. The aim of this study was to explore how gender power dynamics within couples affect HIV-positive women's uptake of early infant HIV testing at a large health center in Lusaka, Zambia...
March 21, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28302125/joint-longitudinal-data-analysis-in-detecting-determinants-of-cd4-cell-count-change-and-adherence-to-highly-active-antiretroviral-therapy-at-felege-hiwot-teaching-and-specialized-hospital-north-west-ethiopia-amhara-region
#14
Awoke Seyoum, Principal Ndlovu, Zewotir Temesgen
BACKGROUND: Adherence and CD4 cell count change measure the progression of the disease in HIV patients after the commencement of HAART. Lack of information about associated factors on adherence to HAART and CD4 cell count reduction is a challenge for the improvement of cells in HIV positive adults. The main objective of adopting joint modeling was to compare separate and joint models of longitudinal repeated measures in identifying long-term predictors of the two longitudinal outcomes: CD4 cell count and adherence to HAART...
March 16, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28292305/possible-misdiagnosis-of-hiv-associated-lymphoma-as-tuberculosis-among-patients-attending-uganda-cancer-institute
#15
Paul Buyego, Lydia Nakiyingi, Henry Ddungu, Stephen Walimbwa, Damalie Nalwanga, Steven J Reynolds, Rosalind Parkes-Ratanshi
BACKGROUND: Early diagnosis of HIV associated lymphoma is challenging because the definitive diagnostic procedure of biopsy, requires skills and equipment that are not readily available. As a consequence, diagnosis may be delayed increasing the risk of mortality. We set out to determine the frequency and risk factors associated with the misdiagnosis of HIV associated lymphoma as tuberculosis (TB) among patients attending the Uganda Cancer Institute (UCI). METHODS: A retrospective cohort study design was used among HIV patients with associated lymphoma patients attending the UCI, Kampala, Uganda between February and March 2015...
March 14, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28270215/characterization-of-occult-hepatitis-b-virus-infection-among-hiv-positive-patients-in-cameroon
#16
George Gachara, Tshifhiwa Magoro, Lufuno Mavhandu, Emmaculate Lum, Helen K Kimbi, Roland N Ndip, Pascal O Bessong
PURPOSE: Occult hepatitis B infection (OBI) among HIV positive patients varies widely in different geographic regions. We undertook a study to determine the prevalence of occult hepatitis B infection among HIV infected individuals visiting a health facility in South West Cameroon and characterized occult HBV strains based on sequence analyses. METHODS: Plasma samples (n = 337), which previously tested negative for hepatitis B surface antigen (HBsAg), were screened for antibodies against hepatitis B core (anti-HBc) and surface (anti-HBs) antigens followed by DNA extraction...
March 8, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28257647/hiv-care-in-yangon-myanmar-successes-challenges-and-implications-for-policy
#17
Ne Myo Aung, Josh Hanson, Tint Tint Kyi, Zaw Win Htet, David A Cooper, Mark A Boyd, Mar Mar Kyi, Htin Aung Saw
BACKGROUND: Approximately 0.8% of adults aged 18-49 in Myanmar are seropositive for Human Immunodeficiency Virus (HIV). Identifying the demographic, epidemiological and clinical characteristics of people living with HIV (PLHIV) is essential to inform optimal management strategies in this resource-limited country. METHODS: To create a "snapshot" of the PLHIV seeking anti-retroviral therapy (ART) in Myanmar, data were collected from the registration cards of all patients who had been prescribed ART at two large referral hospitals in Yangon, prior to March 18, 2016...
March 4, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28209198/distribution-and-fate-of-hiv-1-unintegrated-dna-species-a-comprehensive-update
#18
REVIEW
Faysal Bin Hamid, Jinsun Kim, Cha-Gyun Shin
Reverse transcription of viral RNA and the subsequent integration of reverse transcripts are the classical early events of the HIV-1 life-cycle. Simultaneously, abundant unintegrated DNAs (uDNAs), are formed in cells ubiquitously. The uDNAs either undergo recombination or degradation or persist inactively for long periods in the nucleus as future resources. Among them, 2-LTR circles are considered a dead-end for viral spread. Their contribution to the HIV-1 infection is still poorly understood. Nevertheless, the preintegration transcription of the aberrant DNAs and the consequent alterations of cellular factors have already been reported...
February 16, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28209189/late-presentation-increases-risk-and-costs-of-non-infectious-comorbidities-in-people-with-hiv-an-italian-cost-impact-study
#19
Giovanni Guaraldi, Stefano Zona, Marianna Menozzi, Thomas D Brothers, Federica Carli, Chiara Stentarelli, Giovanni Dolci, Antonella Santoro, Ana Rita Domingues Da Silva, Elisa Rossi, Julian Falutz, Cristina Mussini
BACKGROUND: Late presentation (LP) at the time of HIV diagnosis is defined as presentation with AIDS whatever the CD4 cell count or with CD4 <350 cells/mm. The objective of our study was to assess the prevalence of non-infectious comorbidities (NICM) and multimorbidity among HIV-positive individuals with and without a history of LP (HIV + LP and HIV + EP, respectively), and compare them to matched HIV-negative control participants from a community-based cohort. The secondary objective was to provide estimates and determinants of direct cost of medical care in HIV patients...
February 16, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28193244/h1n1-influenza-vaccination-in-hiv-infected-women-on-effective-antiretroviral-treatment-did-not-induce-measurable-antigen-driven-proliferation-of-the-hiv-1-proviral-reservoir
#20
Thor A Wagner, Hannah C Huang, Christen E Salyer, Kelly M Richardson, Adriana Weinberg, Sharon Nachman, Lisa M Frenkel
OBJECTIVES: Antigen-induced activation and proliferation of HIV-1-infected cells is hypothesized to be a mechanism of HIV persistence during antiretroviral therapy. The objective of this study was to determine if proliferation of H1N1-specific HIV-infected cells could be detected following H1N1 vaccination. METHODS: This study utilized cryopreserved PBMC from a previously conducted trial of H1N1 vaccination in HIV-infected pregnant women. HIV-1 DNA concentrations and 437 HIV-1 C2V5 env DNA sequences were analyzed from ten pregnant women on effective antiretroviral therapy, before and 21 days after H1N1 influenza vaccination...
February 13, 2017: AIDS Research and Therapy
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