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AIDS Research and Therapy

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https://www.readbyqxmd.com/read/29433509/prognostic-indicators-in-the-world-health-organization-s-algorithm-for-seriously-ill-hiv-infected-inpatients-with-suspected-tuberculosis
#1
Rulan Griesel, Annemie Stewart, Helen van der Plas, Welile Sikhondze, Marc Mendelson, Gary Maartens
BACKGROUND: Criteria for the 2007 WHO algorithm for diagnosing tuberculosis among HIV-infected seriously ill patients are the presence of one or more danger signs (respiratory rate > 30/min, heart rate > 120/min, temperature > 39 °C, and being unable to walk unaided) and cough ≥ 14 days. Determining predictors of poor outcomes among HIV-infected inpatients presenting with WHO danger signs could result in improved treatment and diagnostic algorithms. METHODS: We conducted a prospective cohort study of inpatients presenting with any duration of cough and WHO danger signs to two regional hospitals in Cape Town, South Africa...
February 12, 2018: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29370820/quality-improvement-as-a-framework-for-behavior-change-interventions-in-hiv-predisposed-communities-a-case-of-adolescent-girls-and-young-women-in-northern-uganda
#2
Esther Karamagi, Simon Sensalire, Juliana Nabwire, John Byabagambi, Alfred O Awio, George Aluma, Mirwais Rahimzai, Jacqueline Calnan, Sheila Kyobutungi
BACKGROUND: Despite the conventional approaches to HIV prevention being the bedrock for early reductions in HIV infections in Uganda, innovations that demonstrate reduction in risk to infection in vulnerable populations need to be embraced urgently. In the past 2 years, a USAID-funded project tested a quality improvement for behavior change model (QBC) to address barriers to behavioral change among adolescent girls and young women (AGYW) at high risk of HIV infection. The model comprised skills building to improve ability of AGYW to stop risky behavior; setting up and empowering community quality improvement (QI) teams to mobilize community resources to support AGYW to stop risky behavior; and service delivery camps to provide HIV prevention services and commodities to AGYW and other community members...
January 25, 2018: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29370816/prevalence-of-lower-limb-deep-venous-thrombosis-among-adult-hiv-positive-patients-attending-an-outpatient-clinic-at-mulago-hospital
#3
Sosthene Tsongo Vululi, Samuel Bugeza, Muyinda Zeridah, Henry Ddungu, Akello Betty Openy, Mubiru Frank, Rosalind Parkes-Ratanshi
BACKGROUND: Deep venous thrombosis (DVT) and its major complication pulmonary embolism (PE) are collectively known as venous thromboembolism. In Uganda, the prevalence of DVT among HIV patients has not been previously published. The aim of the study was to determine the prevalence and sonographic features of lower limb deep venous thrombosis among HIV positive patients on anti-retroviral treatment (ART). METHODS: This was a cross sectional study in which HIV positive patients on ART were recruited from an out-patient HIV clinic at Mulago National Referral Hospital...
January 25, 2018: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29368619/geographic-patterns-of-poor-hiv-aids-care-continuum-in-district-of-columbia
#4
Suparna Das, Jenevieve Opoku, Michael Kharfen, Adam Allston
BACKGROUND: Concurrent with the UNAIDS 90-90-90 and NHAS plans, the District of Columbia (DC) launched its 90/90/90/50 plan (Plan) in 2015. The Plan proposes that by 2020, 90% of all DC residents will know their HIV status; 90% of residents living with HIV will be in sustained treatment; 90% of those in treatment will reach "Viral Suppression" and DC will achieve 50% reduction of new HIV cases. To achieve these goals targeted prevention strategies are imperative for areas where the relative risk (RR) of not being linked to care (NL), not retained in any care (NRC) and low viral suppression (NVSP) are highest in the District...
January 24, 2018: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29338735/mental-health-service-utilization-is-associated-with-retention-in-care-among-persons-living-with-hiv-at-a-university-affiliated-hiv-clinic
#5
Lauren A Saag, Ashutosh R Tamhane, D Scott Batey, Michael J Mugavero, Ellen F Eaton
BACKGROUND: Mental health (MH) comorbidities reduce retention in care for persons living with HIV (PLWH) and are associated with poor health outcomes. Optimizing retention in primary care is vital, as poor retention is associated with delayed receipt of antiretroviral (ARV) therapy, ARV non-adherence, and poor health outcomes, including failure to suppress viral load, decreased CD4 counts, and clinically significant ARV drug resistance. We hypothesized that MH service utilization would be associated with improved retention in care for patients with HIV and MH comorbidities...
January 16, 2018: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29248014/a-cluster-randomized-controlled-trial-of-lay-health-worker-support-for-prevention-of-mother-to-child-transmission-of-hiv-pmtct-in-south-africa
#6
Karl Peltzer, Stephen M Weiss, Manasi Soni, Tae Kyoung Lee, Violeta J Rodriguez, Ryan Cook, Maria Luisa Alcaide, Geoffrey Setswe, Deborah L Jones
BACKGROUND: We evaluate the impact of clinic-based PMTCT community support by trained lay health workers in addition to standard clinical care on PMTCT infant outcomes. METHODS: In a cluster randomized controlled trial, twelve community health centers (CHCs) in Mpumalanga Province, South Africa, were randomized to have pregnant women living with HIV receive either: a standard care (SC) condition plus time-equivalent attention-control on disease prevention (SC; 6 CHCs; n  = 357), or an enhanced intervention (EI) condition of SC PMTCT plus the "Protect Your Family" intervention (EI; 6 CHCs; n  = 342)...
December 16, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29132400/hospitalization-causes-and-outcomes-in-hiv-patients-in-the-late-antiretroviral-era-in-colombia
#7
María Fernanda Álvarez Barreneche, Carlos Andrés Restrepo Castro, Alicia Hidrón Botero, Juan Pablo Villa Franco, Ivan Mauricio Trompa Romero, Laura Restrepo Carvajal, Alejandro Eusse García, Adriana Ocampo Mesa, Lina María Echeverri Toro, Glenys Patricia Porras Fernández de Castro, Jaime Mauricio Ramírez Rivera, Carlos Andrés Agudelo Restrepo
BACKGROUND: Antiretroviral therapy (ART) has modified the natural history of HIV-infection: the incidence of opportunistic infections (OIs) has decreased and mortality associated to HIV has improved dramatically. The reasons for hospitalization have changed; OIs are no longer the most common reason for admission. This study describes the patient population, admission diagnosis and hospital course of HIV patients in Colombia in the ART era. METHODS: Patients admitted with HIV/AIDS at six hospitals in Medellin, Colombia between August 1, 2014 and July 31, 2015 were included...
November 13, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29096670/hiv-treatment-simplification-to-elvitegravir-cobicistat-emtricitabine-tenofovir-disproxil-fumarate-e-c-f-tdf-plus-darunavir-a-pharmacokinetic-study
#8
Marianne Harris, Bruce Ganase, Birgit Watson, P Richard Harrigan, Julio S G Montaner, Mark W Hull
BACKGROUND: As a simplification strategy for treatment-experienced HIV-infected patients who have achieved virologic suppression on a multi-drug, multi-class antiretroviral regimen, the aim of this study was to evaluate the safety, efficacy, and pharmacokinetics of once-daily elvitegravir/cobicistat/emtricitabine/tenofovir disproxil fumarate (E/C/F/TDF) with darunavir. METHODS: A single arm, open-label 48-week study was conducted of regimen simplification to E/C/F/TDF plus darunavir 800 mg daily from stable therapy including two nucleoside/nucleotide reverse transcriptase inhibitors, a ritonavir-boosted protease inhibitor, and an integrase inhibitor...
November 2, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29029637/drug-resistance-patterns-following-pharmacy-stock-shortage-in-nigerian-antiretroviral-treatment-program
#9
Seema T Meloni, Beth Chaplin, John Idoko, Oche Agbaji, Sulaimon Akanmu, Godwin Imade, Prosper Okonkwo, Robert L Murphy, Phyllis J Kanki
BACKGROUND: For patients on antiretroviral therapy (ART), treatment interruptions can impact patient outcomes and result in the accumulation of drug resistance mutations leading to virologic failure. There are minimal published data on the impact of an ART stock shortage on development of drug resistance mutations (DRMs). In this report, we evaluate data from patients enrolled in the Government of Nigeria National ART Program that were receiving treatment at the time of a national drug shortage in late 2003...
October 13, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/29025433/the-role-of-the-glycosyl-moiety-of-myricetin-derivatives-in-anti-hiv-1-activity-in-vitro
#10
Joseph T Ortega, Alirica I Suárez, Maria L Serrano, Jani Baptista, Flor H Pujol, Hector R Rangel
BACKGROUND: Plant extracts are sources of valuable compounds with biological activity, especially for the anti-proliferative activity against pathogens or tumor cells. Myricetin is a flavonoid found in several plants that has been described as an inhibitor of Human immunodeficiency virus type 1 (HIV-1) through its action against the HIV reverse transcriptase, but myricetin derivatives have not been fully studied. The aim of this study was to evaluate the anti-HIV-1 activity of glycosylated metabolites obtained from Marcetia taxifolia and derived from myricetin: myricetin rhamnoside and myricetin 3-(6-rhamnosylgalactoside)...
October 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28931406/validation-of-a-questionnaire-to-monitor-symptoms-in-hiv-infected-patients-during-hepatitis-c-treatment
#11
Edward R Cachay, Craig Ballard, Bradford Colwell, Francesca Torriani, Charles Hicks, Wm Christopher Mathews
BACKGROUND: Clinicians are incorporating patient-reported outcomes in the management of HIV-infected persons co-infected with hepatitis C virus (HCV), but there are no validated inventories to monitor symptoms of patients during HCV therapy. DESIGN: Five-year retrospective cohort analysis of persons living with HIV (PLWH) treated for HCV. METHODS: The HCV symptom-inventory (HCV-SI) was administered before, during, and after HCV treatment. Discriminant validity was assessed, separately, in mixed model linear regression of HCV-SI T-scores on treatment regimens (pegylated-interferon and ribavirin; pegylated-interferon, ribavirin, and telaprevir; and interferon-free antivirals); and side effect-related premature treatment discontinuation (SE-DC)...
September 20, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893304/preventing-hiv-infection-without-targeting-the-virus-how-reducing-hiv-target-cells-at-the-genital-tract-is-a-new-approach-to-hiv-prevention
#12
REVIEW
Julie Lajoie, Lucy Mwangi, Keith R Fowke
For over three decades, HIV infection has had a tremendous impact on the lives of individuals and public health. Microbicides and vaccines studies have shown that immune activation at the genital tract is a risk factor for HIV infection. Furthermore, lower level of immune activation, or what we call immune quiescence, has been associated with a lower risk of HIV acquisition. This unique phenotype is observed in highly-exposed seronegative individuals from different populations including female sex workers from the Pumwani cohort in Nairobi, Kenya...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893294/hiv-i-nef-inhibitors-a-novel-class-of-hiv-specific-immune-adjuvants-in-support-of-a-cure
#13
REVIEW
Gregory A Dekaban, Jimmy D Dikeakos
The success of many current vaccines relies on a formulation that incorporates an immune activating adjuvant. This will hold true for the design of a successful therapeutic HIV vaccine targeted at controlling reactivated virus following cessation of combined antiretroviral therapy (cART). The HIV accessory protein Nef functions by interfering with HIV antigen presentation through the major histocompatibility complex I (MHC-I) pathway thereby suppressing CD8(+) cytotoxic T cell (CTL)-mediated killing of HIV infected cells...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893293/hiv-vaccine-research-in-canada
#14
EDITORIAL
Robin Shattock
No abstract text is available yet for this article.
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893290/evasion-of-adaptive-immunity-by-hiv-through-the-action-of-host-apobec3g-f-enzymes
#15
REVIEW
Michael Grant, Mani Larijani
APOBEC3G (A3G) and APOBEC3F (A3F) are DNA-mutating enzymes expressed in T cells, dendritic cells and macrophages. A3G/F have been considered innate immune host factors, based on reports that they lethally mutate the HIV genome in vitro. In vivo, A3G/F effectiveness is limited by viral proteins, entrapment in inactive complexes and filtration of mutations during viral life cycle. We hypothesized that the impact of sub-lethal A3G/F action could extend beyond the realm of innate immunity confined to the cytoplasm of infected cells...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893288/potential-contribution-of-gut-microbiota-and-systemic-inflammation-on-hiv-vaccine-effectiveness-and-vaccine-design
#16
REVIEW
Jean-Pierre Routy, Vikram Mehraj
The quest for an effective HIV-1 vaccine began as soon as the virus causing AIDS was identified. After several disappointing attempts, results of the Phase-III RV144 trial in Thailand were a beacon of hope for the field demonstrating correlation between protection and immunological markers. In order to optimize vaccine response, we underline results from yellow fever and hepatitis B vaccines, where protective responses were predicted by the pre-vaccination level of immune activation in healthy individuals. Such findings support the assessment and reduction of pre-vaccine immune activation in order to optimize vaccine response...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893287/natural-killer-nk-cell-receptor-hla-ligand-genotype-combinations-associated-with-protection-from-hiv-infection-investigation-of-how-protective-genotypes-influence-anti-hiv-nk-cell-functions
#17
REVIEW
Nicole F Bernard
The anti-HIV activity of natural killer (NK) cells could be induced fast enough to potentially prevent the establishment of HIV infection. Epidemiological studies identified two genotypes encoding NK receptors that contribute to NK cell function, that were more frequent in people who remained uninfected despite multiple HIV exposures than in HIV-susceptible subjects. NK cells from carriers of the *h/*y+B*57 genotype have higher NK cell functional potential and inhibit HIV replication in autologous HIV-infected CD4+ T cells (iCD4) more potently than those from carriers of non-protective genotypes...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893286/the-biology-of-how-circumcision-reduces-hiv-susceptibility-broader-implications-for-the-prevention-field
#18
REVIEW
Jessica L Prodger, Rupert Kaul
Circumcision reduces heterosexual HIV-1 acquisition in men by at least 60%. However, the biological mechanisms by which circumcision is protective remain incompletely understood. We test the hypothesis that the sub-preputial microenvironment created by the foreskin drives immune activation in adjacent foreskin tissues, facilitating HIV-1 infection through a combination of epithelial barrier disruption, enhanced dendritic cell maturation, and the recruitment/activation of neutrophils and susceptible CD4 T cell subsets such as Th17 cells...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893284/role-of-sex-hormones-and-the-vaginal-microbiome-in-susceptibility-and-mucosal-immunity-to-hiv-1-in-the-female-genital-tract
#19
REVIEW
Danielle Vitali, Jocelyn M Wessels, Charu Kaushic
While the prevalence of Human immunodeficiency virus-1 (HIV-1) infection has stabilized globally, it continues to be the leading cause of death among women of reproductive age. The majority of new infections are transmitted heterosexually, and women have consistently been found to be more susceptible to HIV-1 infection during heterosexual intercourse compared to men. This emphasizes the need for a deeper understanding of how the microenvironment in the female genital tract (FGT) could influence HIV-1 acquisition...
September 12, 2017: AIDS Research and Therapy
https://www.readbyqxmd.com/read/28893282/development-of-targeted-adjuvants-for-hiv-1-vaccines
#20
REVIEW
Jun Liu, Mario Ostrowski
Finding new adjuvants is an integrated component of the efforts in developing an effective HIV-1 vaccine. Compared with traditional adjuvants, a modern adjuvant in the context of HIV-1 prevention would elicit a durable and potent memory response from B cells, CD8(+) T cells, and NK cells but avoid overstimulation of HIV-1 susceptible CD4(+) T cells, especially at genital and rectal mucosa, the main portals for HIV-1 transmission. We briefly review recent advances in the studies of such potential targeted adjuvants, focusing on three classes of molecules that we study: TNFSF molecules, TLRs agonists, and NODs agonists...
September 12, 2017: AIDS Research and Therapy
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