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https://www.readbyqxmd.com/read/28934209/microbial-translocation-is-correlated-with-hiv-evolution-in-hiv-hcv-co-infected-patients
#1
Jean-Jacques Tudesq, Catherine Dunyach-Remy, Christophe Combescure, Régine Doncesco, Didier Laureillard, Jean-Philippe Lavigne, Albert Sotto
Microbial translocation (MT) is characterized by bacterial products passing into the blood through the gut barrier and is a key phenomenon in the pathophysiology of Human Immunodeficiency Virus (HIV) infection. MT is also associated with liver damage in Hepatitis C Virus (HCV) patients. The aim of the study was to assess MT in plasma of HIV-HCV co-infected patients. 16S rDNA (16 S Ribosomal DNA subunit) marker and other markers of MT such as Lipopolysaccharide (LPS)-binding protein (LBP), soluble CD14 (sCD14), intestinal fatty acid binding protein (I-FABP) were used...
2017: PloS One
https://www.readbyqxmd.com/read/28931520/dna-priming-increases-frequency-of-t-cell-responses-to-a-vsv-hiv-vaccine-with-specific-enhancement-of-cd8-t-cell-responses-by-il-12-pdna
#2
Shuying S Li, Nidhi K Kochar, Marnie Elizaga, Christine M Hay, Gregory J Wilson, Kristen W Cohen, Stephen C De Rosa, Rong Xu, Ayuko Ota-Setlik, Daryl Morris, Greg Finak, Mary Allen, Hong-Van Tieu, Ian Frank, Magdalena E Sobieszczyk, Drew Hannaman, Raphael Gottardo, Peter B Gilbert, Georgia D Tomaras, Lawrence Corey, David K Clarke, Michael A Egan, John H Eldridge, M Juliana McElrath, Nicole Frahm
HVTN 087 assessed the effect of increasing doses of pIL-12 adjuvant on the immunogenicity of a HIV-1 multi-antigen (MAG) DNA vaccine delivered by electroporation and boosted with an attenuated VSV-Gag vaccine. We randomized 100 healthy adults to receive placebo, or 3mg HIV-MAG (gag/pol, env, nef/tat/vif) DNA vaccine co-administered with pIL-12 at 0μg, 250μg, 1,000μg or 1,500μg intramuscularly by electroporation at 0, 1 and 3 months followed by intramuscular inoculation with 3.4×10(7) PFU VSV-Gag vaccine at 6 months...
September 20, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28931406/validation-of-a-questionnaire-to-monitor-symptoms-in-hiv-infected-patients-during-hepatitis-c-treatment
#3
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/28928737/env-specific-antibodies-in-chronic-infection-versus-in-vaccination
#4
REVIEW
Martina Soldemo, Gunilla B Karlsson Hedestam
Antibodies are central in vaccine-mediated protection. For HIV-1, a pathogen that displays extreme antigenic variability, B cell responses against conserved determinants of the envelope glycoproteins (Env) are likely required to achieve broadly protective vaccine-induced responses. To understand antibodies in chronic infection, where broad serum neutralizing activity is observed in a subset of individuals, monoclonal antibodies mediating this activity have been isolated. Studies of their maturation pathways reveal that years of co-evolution between the virus and the adaptive immune response are required for such responses to arise...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28926641/impact-of-monotherapy-on-hiv-1-reservoir-immune-activation-and-co-infection-with-epstein-barr-virus
#5
Maria Raffaella Petrara, Anna Maria Cattelan, Lolita Sasset, Riccardo Freguja, Francesco Carmona, Silvia Sanavia, Marisa Zanchetta, Paola Del Bianco, Anita De Rossi
OBJECTIVES: Although monotherapy (mART) effectiveness in maintaining viral suppression and CD4 cell count has been extensively examined in HIV-1-infected patients, its impact on HIV-1 reservoir, immune activation, microbial translocation and co-infection with Epstein-Barr Virus (EBV) is unclear. METHODS: This retrospective study involved 32 patients who switched to mART; patients were studied at baseline, 48 and 96 weeks after mART initiation. Thirty-two patients who continued combined antiretroviral therapy (cART) over the same period of time were included in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28926559/novelties-in-evaluation-and-monitoring-of-human-immunodeficiency-virus-1-infection-is-standard-virological-suppression-enough-for-measuring-antiretroviral-treatment-success
#6
Valentina Svicher, Giulia Marchetti, Adrianna Ammassari, Francesca Ceccherini-Silberstein, Loredana Sarmati
The high potency and tolerability of the currently available antiretroviral drugs has modified HIV-1 infection from a life-threatening disease to a chronic illness. Nevertheless, some issues still remain open to optimize the management of HIV-1 infected patients in term of maintenance of virological suppression over time, identifying patients that could benefit from simplification therapy, and reducing co-mordibities driven by chronic inflammation. The availability of robust and affordable virological and immunological markers can help in solving these issues by providing information on the burden of HIV-1 reservoir in all the anatomical compartments in which the virus replicates as well as on persistent inflammation, immune activation and senescence despite successful virological suppression...
September 19, 2017: AIDS Reviews
https://www.readbyqxmd.com/read/28926400/hepatitis-b-hepatitis-c-and-mortality-among-hiv-positive-individuals
#7
Alicia C Thornton, Sophie Jose, Sanjay Bhagani, David Chadwick, David Dunn, Richard Gilson, Janice Main, Mark Nelson, Alison Rodger, Chris Taylor, Elaney Youssef, Clifford Leen, Mark Gompels, Stephen Kegg, Achim Schwenk, Caroline Sabin
OBJECTIVES: To compare rates of all-cause, liver-related and AIDS-related mortality among individuals who are HIV mono-infected with those co-infected with HIV and hepatitis B (HBV) and/or hepatitis C (HCV) viruses. DESIGN: An ongoing observational cohort study collating routinely collected clinical data on HIV-positive individuals attending for care at HIV treatment centres throughout the UK. METHODS: Individuals were included if they had been seen for care from 2004 onwards and had tested for HBV and HCV...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926398/association-of-a-3-untranslated-region-polymorphism-in-pcsk9-with-hiv-viral-load-and-cd4-levels-in-hiv-hepatitis-c-virus-co-infected-women
#8
Mark H Kuniholm, Hua Liang, Kathryn Anastos, Deborah Gustafson, Seble Kassaye, Marek Nowicki, Beverly E Sha, Emilia J Pawlowski, Stephen J Gange, Bradley E Aouizerat, Tatiana Pushkarsky, Michael I Bukrinsky, Vinayaka R Prasad
OBJECTIVE: To assess variation in genes that regulate cholesterol metabolism in relation to the natural history of HIV infection. DESIGN: Cross-sectional and longitudinal analysis of the Women's Interagency HIV Study (WIHS). METHODS: We examined 2,050 single nucleotide polymorphisms (SNPs) in 19 genes known to regulate cholesterol metabolism in relation to HIV viral load and CD4 T cell levels in a multiracial cohort of 1,066 antiretroviral therapy (ART) naïve women...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28923290/use-of-adult-sensory-panel-to-study-individual-differences-in-the-palatability-of-a-pediatric-hiv-treatment-drug
#9
Julie A Mennella, Phoebe S Mathew, Elizabeth D Lowenthal
PURPOSE: The recommended first-line treatment for young children infected with HIV includes the liquid formulation of the co-formulated protease inhibitors lopinavir/ritonavir (Kaletra(®) [Abbott Laboratories, Chicago, Illinois]). Clinical reports indicate that some children readily accept the taste of Kaletra, whereas others strongly reject it, which can deter therapeutic adherence and outcomes. METHODS: As a proof-of-concept approach, a sensory panel of genotyped adults was used to document the range of individual differences in the taste and palatability (hedonics) of the liquid formulation of Kaletra and other taste stimuli, including common excipients...
September 15, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28922979/a-review-of-drug-drug-interactions-in-older-hiv-infected-patients
#10
Aarthi Chary, Nancy N Nguyen, Kimberly Maiton, Mark Holodniy
The number of older HIV-infected people is growing due to increasing life expectancies resulting from the use of antiretroviral therapy (ART). Both HIV and aging increase the risk of other comorbidities, such as cardiovascular disease, osteoporosis, and some malignancies, leading to greater challenges in managing HIV with other conditions. This results in complex medication regimens with the potential for significant drug-drug interactions and increased morbidity and mortality. Area covered: We review the metabolic pathways of ART and other medications used to treat medical co-morbidities, highlight potential areas of concern for drug-drug interactions, and where feasible, suggest alternative approaches for treating these conditions as suggested from national guidelines or articles published in the English language...
September 19, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28918877/raltegravir-1200-mg-once-daily-versus-raltegravir-400-mg-twice-daily-with-tenofovir-disoproxil-fumarate-and-emtricitabine-for-previously-untreated-hiv-1-infection-a-randomised-double-blind-parallel-group-phase-3-non-inferiority-trial
#11
Pedro Cahn, Richard Kaplan, Paul E Sax, Kathleen Squires, Jean-Michel Molina, Anchalee Avihingsanon, Winai Ratanasuwan, Evelyn Rojas, Mohammed Rassool, Mark Bloch, Linos Vandekerckhove, Peter Ruane, Yazdan Yazdanpanah, Christine Katlama, Xia Xu, Anthony Rodgers, Lilly East, Larissa Wenning, Sandy Rawlins, Brenda Homony, Peter Sklar, Bach-Yen Nguyen, Randi Leavitt, Hedy Teppler
BACKGROUND: Once daily regimens are preferred for HIV-1 treatment, to facilitate adherence and improve quality of life. We compared a new once daily formulation of raltegravir to the currently marketed twice daily formulation. METHODS: In this randomised, double-blind, parallel-group, phase 3, non-inferiority study, we enrolled participants aged 18 years or older with HIV-1 RNA of 1000 or more copies per mL and no previous antiretroviral treatment at 139 sites worldwide...
September 11, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28916780/preserved-immune-functionality-and-high-cmv-specific-t-cell-responses-in-hiv-infected-individuals-with-poor-cd4-t-cell-immune-recovery
#12
Elisabet Gómez-Mora, Elisabet García, Victor Urrea, Marta Massanella, Jordi Puig, Eugenia Negredo, Bonaventura Clotet, Julià Blanco, Cecilia Cabrera
Poor CD4(+) T-cell recovery after cART has been associated with skewed T-cell maturation, inflammation and immunosenescence; however, T-cell functionality in those individuals has not been fully characterized. In the present study, we assessed T-cell function by assessing cytokine production after polyclonal, CMV and HIV stimulations of T-cells from ART-suppressed HIV-infected individuals with CD4(+) T-cell counts >350 cells/μL (immunoconcordants) or <350 cells/μL (immunodiscordants). A group of HIV-uninfected individuals were also included as controls...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28914669/infection-staging-and-incidence-surveillance-applications-of-high-dynamic-range-diagnostic-immuno-assay-platforms
#13
Eduard Grebe, Alex Welte, Jake Hall, Sheila M Keating, Shelley N Facente, Kara Marson, Jeffrey N Martin, Susan J Little, Matthew A Price, Esper G Kallas, Michael P Busch, Christopher D Pilcher, Gary Murphy
BACKGROUND: Custom HIV staging assays, including the Sedia™ HIV-1 Limiting Antigen Avidity EIA (LAg) and avidity modifications of the Ortho VITROS® anti-HIV-1+2 and Abbott ARCHITECT HIV Ag/Ab Combo assays, are used to identify 'recent' infections in clinical settings and for cross-sectional HIV incidence estimation. However, the high dynamic range of chemiluminescent platforms allows differentiating recent and longstanding infection on signal intensity, and this raises the prospect of using unmodified diagnostic assays for infection timing and surveillance applications...
September 7, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28914126/patient-navigators-effectively-support-hiv-infected-individuals-returning-to-the-community-from-jail-settings
#14
Janet J Myers, Kimberly A Koester, Mi-Suk Kang Dufour, Alison O Jordan, Jacqueline Cruzado-Quinone, Alissa Riker
Purpose Patient navigation is an evidence-based approach for enhancing medical and support service co-ordination and ensuring linkage to medical care for people living with HIV released from jail. The paper aims to discuss this issue. Design/methodology/approach This brief describes the benefits of patient navigation and issues to consider when implementing a navigator program. The authors use process data to describe the type and amount of navigation services delivered as part of a randomized study, the "The San Francisco Navigator Project...
September 11, 2017: International Journal of Prisoner Health
https://www.readbyqxmd.com/read/28914079/co-infection-of-human-herpesvirus-type-2-hhv-2-and-human-immunodeficiency-virus-hiv-among-pregnant-women-in-rio-de-janeiro-brazil
#15
Lyana Rodrigues Pinto Lima, Luis Eduardo Barros Costa Fernandes, Daniel A M Villela, Mariza Gonçalves Morgado, José Henrique Pilotto, Vanessa Salete de Paula
Pregnant women who are infected with the Human Immunodeficiency Virus (HIV) are particularly vulnerable to severe and recurrent infections with Human Herpesvirus 2 (HHV-2). Neonatal transmission of HHV-2 has been associated with malformations and neurological sequelae in infants, which makes it very important to perform antenatal monitoring for genital herpes. In the study, 134 pregnant women infected with HIV were tested for HHV-2 IgM and IgG using an enzyme-linked immunosorbent assay (ELISA) and had HHV-2 DNA analyzed by Real Time Polymerase Chain Reaction (qPCR)...
September 15, 2017: AIDS Care
https://www.readbyqxmd.com/read/28911361/detecting-mycobacterium-tuberculosis-using-the-loop-mediated-isothermal-amplification-test-in-south-africa
#16
S Reddy, S Ntoyanto, Y Sakadavan, T Reddy, S Mahomed, M Dlamini, B Spooner, G Ramjee, A Coutsoudis, N Ngomane, K Naidoo, K Mlisana, P Kiepiela
SETTING: In South Africa, KwaZulu-Natal is the epicentre of the human immunodeficiency virus (HIV) epidemic, where approximately 70% of people with tuberculosis (TB) are co-infected with HIV. Undiagnosed TB contributes to high mortality in HIV-infected patients. Delays in diagnosing TB and treatment initiation result in prolonged transmission and increased infectiousness. OBJECTIVE: To evaluate the LoopampTM MTBC Detection kit (TB-LAMP; based on the loop-mediated isothermal amplification assay), smear microscopy and Xpert test with the gold standard of mycobacterial culture...
October 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28910347/high-hpgv-replication-is-associated-with-improved-surrogate-markers-of-hiv-progression
#17
Gibran Horemheb-Rubio, Pilar Ramos-Cervantes, Hugo Arroyo-Figueroa, Santiago Ávila-Ríos, Claudia García-Morales, Gustavo Reyes-Terán, Galileo Escobedo, Gloria Estrada, Trinidad García-Iglesias, Nayeli Muñoz-Saucedo, David Kershenobich, Patricia Ostrosky-Wegman, Guillermo M Ruiz-Palacios
BACKGROUND: Human Pegivirus (HPgV) may have a beneficial effect on HIV disease progression in co-infected patients; however, the virologic characteristics of this infection are not well defined. In this study, we determined HPgV viremia prevalence in Mexico and provide new insights to understand HPgV infection and HPgV/HIV co-infection. METHODS: We analyzed and quantified 7,890 serum samples for HPgV viremia by One-Step RT-Real-Time PCR, 6,484 from healthy blood donors and 1,406 from HIV-infected patients...
2017: PloS One
https://www.readbyqxmd.com/read/28904745/genome-editing-of-the-hiv-co-receptors-ccr5-and-cxcr4-by-crispr-cas9-protects-cd4-t-cells-from-hiv-1-infection
#18
Zhepeng Liu, Shuliang Chen, Xu Jin, Qiankun Wang, Kongxiang Yang, Chenlin Li, Qiaoqiao Xiao, Panpan Hou, Shuai Liu, Shaoshuai Wu, Wei Hou, Yong Xiong, Chunyan Kong, Xixian Zhao, Li Wu, Chunmei Li, Guihong Sun, Deyin Guo
BACKGROUND: The main approach to treat HIV-1 infection is combination antiretroviral therapy (cART). Although cART is effective in reducing HIV-1 viral load and controlling disease progression, it has many side effects, and is expensive for HIV-1 infected patients who must remain on lifetime treatment. HIV-1 gene therapy has drawn much attention as studies of genome editing tools have progressed. For example, zinc finger nucleases (ZFN), transcription activator like effector nucleases (TALEN) and clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 have been utilized to successfully disrupt the HIV-1 co-receptors CCR5 or CXCR4, thereby restricting HIV-1 infection...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28902848/the-effect-of-hiv-infection-and-hcv-viremia-on-inflammatory-mediators-and-hepatic-injury-the-women-s-interagency-hiv-study
#19
Sheila M Keating, Jennifer L Dodge, Philip J Norris, John Heitman, Stephen J Gange, Audrey L French, Marshall J Glesby, Brian R Edlin, Patricia S Latham, Maria C Villacres, Ruth M Greenblatt, Marion G Peters
Hepatitis C virus infection induces inflammation and while it is believed that HIV co-infection enhances this response, HIV control may reduce inflammation and liver fibrosis in resolved or viremic HCV infection. Measurement of systemic biomarkers in co-infection could help define the mechanism of inflammation on fibrosis and determine if HIV control reduces liver pathology. A nested case-control study was performed to explore the relationship of systemic biomarkers of inflammation with liver fibrosis in HCV viremic and/or seropositive women with and without HIV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28902705/effects-of-vitamin-d-supplementation-on-bone-mineral-density-and-bone-markers-in-hiv-infected-youth
#20
Allison Ross Eckard, Mary Ann O'Riordan, Julia C Rosebush, Joshua H Ruff, Ann Chahroudi, Danielle Labbato, Julie E Daniels, Monika Uribe-Leitz, Vin Tangpricha, Grace A McComsey
BACKGROUND: Low bone mineral density (BMD) is a significant co-morbidity in HIV. However, studies evaluating vitamin D supplementation on bone health in this population are limited. This study investigates changes in bone health parameters after 12 months of supplementation in HIV-infected youth with vitamin D insufficiency. METHODS: This is a randomized, active-control, double-blind trial investigating changes in bone parameters with 3 different vitamin D3 doses [18,000 (standard/control dose), 60,000 (moderate dose) and 120,000 IU/monthly (high dose)] in HIV-infected youth 8-25 years old with baseline serum 25-hydroxyvitamin D (25(OH)D) concentrations <30 ng/mL...
September 11, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
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