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https://www.readbyqxmd.com/read/28170304/hiv-pre-exposure-prophylaxis-and-postexposure-prophylaxis-in-japan-context-of-use-and-directions-for-future-research-and-action
#1
Anthony S DiStefano, Makiko Takeda
Biomedical HIV prevention strategies are playing an increasingly prominent role in addressing HIV epidemics globally, but little is known about their use in Japan, where persistent HIV disparities and a recently stable, but not declining, national epidemic indicate the need for evolving approaches. We conducted an ethnographic study to determine the context of pre-exposure prophylaxis (PrEP) and postexposure prophylaxis (PEP) use and to identify directions for future research and action in Japan. We used data from observational fieldwork in the Kansai region and Tokyo Metropolitan Area (n = 178 persons observed), qualitative interviews (n = 32), documents and web-based data sources (n = 321), and email correspondences (n = 9) in the period 2013-2016...
February 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/28195560/impact-of-tenofovir-dose-adjustment-on-both-estimated-glomerular-filtration-rate-and-tenofovir-trough-concentration
#2
Sylvie Bregigeon, Caroline Solas, Olivia Faucher, Véronique Obry-Roguet, Catherine Tamalet, Isabelle Poizot-Martin
BACKGROUND: Tenofovir disoproxil fumarate (TDF)-based regimen is a treatment option for HIV-infected patients. TDF dose adjustment is recommended in patients with impaired renal function. We assessed the impact of TDF dose adjustment on renal function and tenofovir trough concentration. METHODS: Fourteen HIV patients for whom TDF dose was adjusted (1 tablet/48h) because of estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73m(2), and/or due to a tenofovir trough concentration > 90 ng/mL between 2006 and 2013 were selected...
February 14, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28152024/they-might-be-giants-does-syncytium-formation-sink-or-spread-hiv-infection
#3
Alex A Compton, Olivier Schwartz
No abstract text is available yet for this article.
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28121714/hepatitis-delta-and-hiv-infection
#4
Vincent Soriano, Kenneth E Sherman, Pablo Barreiro
Viral liver diseases are frequent co-morbidities and major contributors to death in HIV-positive individuals on antiretroviral therapy. Whereas cure of hepatitis C and control of hepatitis B with antivirals avert liver disease progression in most HIV-coinfected patients, the lack of satisfactory treatment for hepatitis delta virus (HDV) infection remains a major threat for developing cirrhosis and liver cancer in this population. In the European Union and North America, sexual contact has replaced injection drug use has major transmission route for HDV in HIV-positive persons...
January 24, 2017: AIDS
https://www.readbyqxmd.com/read/28145050/cytochrome-2b6-polymorphism-and-efavirenz-induced-central-nervous-system-symptoms-a-substudy-of-the-anrs-alize-trial
#5
S Gallien, V Journot, M-A Loriot, H Sauvageon, P Morlat, J Reynes, V Reliquet, G Chêne, J-M Molina
OBJECTIVES: Single nucleotide polymorphisms in the cytochrome P450 (CYP) 2B6 gene have been associated with high interindividual variation in efavirenz pharmacokinetics. However, clinical data on the relationship of CYP2B6 polymorphisms with the occurrence of efavirenz-induced central nervous system (CNS) symptoms are limited. METHODS: We analysed four polymorphisms in the CYP2B6 (516 G>T), CYP3A5 (6986 A>G) and ATP-binding cassette, sub-family B, member 1 (ABCB1) (2677 G>T/A and 3435 C>T) genes in HIV-infected adults virologically suppressed on a protease inhibitor-based regimen who switched to a regimen containing emtricitabine, didanosine and efavirenz in the setting of the ANRS ALIZE trial...
February 1, 2017: HIV Medicine
https://www.readbyqxmd.com/read/28059769/cryo-em-structures-and-atomic-model-of-the-hiv-1-strand-transfer-complex-intasome
#6
Dario Oliveira Passos, Min Li, Renbin Yang, Stephanie V Rebensburg, Rodolfo Ghirlando, Youngmin Jeon, Nikoloz Shkriabai, Mamuka Kvaratskhelia, Robert Craigie, Dmitry Lyumkis
Like all retroviruses, HIV-1 irreversibly inserts a viral DNA (vDNA) copy of its RNA genome into host target DNA (tDNA). The intasome, a higher-order nucleoprotein complex composed of viral integrase (IN) and the ends of linear vDNA, mediates integration. Productive integration into host chromatin results in the formation of the strand transfer complex (STC) containing catalytically joined vDNA and tDNA. HIV-1 intasomes have been refractory to high-resolution structural studies. We used a soluble IN fusion protein to facilitate structural studies, through which we present a high-resolution cryo-electron microscopy (cryo-EM) structure of the core tetrameric HIV-1 STC and a higher-order form that adopts carboxyl-terminal domain rearrangements...
January 6, 2017: Science
https://www.readbyqxmd.com/read/28107222/romidepsin-induced-hiv-1-viremia-during-effective-art-contains-identical-viral-sequences-with-few-deleterious-mutations
#7
Anni Winckelmann, Kirston Barton, Bonnie Hiener, Timothy E Schlub, Wei Shao, Thomas A Rasmussen, Lars Østergaard, Ole S Søgaard, Martin Tolstrup, Sarah Palmer
OBJECTIVE: To investigate the origin of the HIV-1 viremia induced by the latency-reversing agent romidepsin. DESIGN: Six individuals on suppressive antiretroviral therapy received romidepsin administered intravenously once weekly for three consecutive weeks. CD4+ T-cells were obtained at baseline, following the second and third romidepsin infusion, and 10 weeks after the final romidepsin treatment. METHODS: Single-genome sequencing of the env region was used to genetically characterize the virus from proviral DNA, the transcribed cell-associated RNA and the plasma RNA pool...
January 19, 2017: AIDS
https://www.readbyqxmd.com/read/27860104/higher-rates-of-neuropsychiatric-adverse-events-leading-to-dolutegravir-discontinuation-in-women-and-older-patients
#8
C Hoffmann, T Welz, M Sabranski, M Kolb, E Wolf, H-J Stellbrink, C Wyen
OBJECTIVES: Dolutegravir (DTG), a second-generation integrase strand transfer inhibitor (INSTI), is now among the most frequently used antiretroviral agents. However, recent reports have raised concerns about potential neurotoxicity. METHODS: We performed a retrospective analysis of a cohort of HIV-infected patients who had initiated an INSTI in two large German out-patient clinics between 2007 and 2016. We compared discontinuation rates because of adverse events (AEs) within 2 years of starting treatment with dolutegravir, raltegravir or elvitegravir/cobicistat...
January 2017: HIV Medicine
https://www.readbyqxmd.com/read/27716848/follicular-regulatory-cd8-t-cells-impair-the-germinal-center-response-in-siv-and-ex-vivo-hiv-infection
#9
Brodie Miles, Shannon M Miller, Joy M Folkvord, David N Levy, Eva G Rakasz, Pamela J Skinner, Elizabeth Connick
During chronic HIV infection, viral replication is concentrated in secondary lymphoid follicles. Cytotoxic CD8 T cells control HIV replication in extrafollicular regions, but not in the follicle. Here, we show CXCR5hiCD44hiCD8 T cells are a regulatory subset differing from conventional CD8 T cells, and constitute the majority of CD8 T cells in the follicle. This subset, CD8 follicular regulatory T cells (CD8 TFR), expand in chronic SIV infection, exhibit enhanced expression of Tim-3 and IL-10, and express less perforin compared to conventional CD8 T cells...
October 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/28013267/shedding-of-hepatitis-c-virus-into-the-rectum-of-hiv-infected-men-who-have-sex-with-men
#10
Andrew L Foster, Michael M Gaisa, Rosanne M Hijdra, Samuel S Turner, Tristan J Morey, Karen B Jacobson, Daniel S Fierer
BACKGROUND: For over a decade we have known of an epidemic of sexually transmitted hepatitis C virus (HCV) infection among human immunodeficiency virus (HIV)-infected men who have sex with men (MSM), but there still remains significant controversy over which bodily fluid(s) are responsible for HCV transmission in these men. METHODS: We enrolled HIV-infected MSM with recent and chronic HCV infection and quantified HCV from rectal fluid obtained by blind swab. We compared the rectal HCV viral load (VL) with paired blood HCV VL...
February 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27941393/use-of-rosuvastatin-in-hiv-associated-chronic-obstructive-pulmonary-disease
#11
Alison Morris, Meghan Fitzpatrick, Marnie Bertolet, Shulin Qin, Lawrence Kingsley, Nicolas Leo, Cathy Kessinger, Heather Michael, Deborah Mcmahon, Renee Weinman, Stephen Stone, Joseph K Leader, Eric Kleerup, Laurence Huang, Stephen R Wisniewski
OBJECTIVES: Chronic obstructive pulmonary disease (COPD) is more prevalent in HIV-infected individuals and is associated with persistent inflammation. Therapies unique to HIV are lacking. We performed a pilot study of the 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor rosuvastatin to determine effects on lung function. DESIGN: Randomized, placebo-controlled, triple-blinded trial. METHODS: HIV-infected individuals with abnormal lung function were recruited from an ongoing lung function study...
February 20, 2017: AIDS
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
#12
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/27074946/baseline-cd4-cd8-t-cell-ratio-predicts-prompt-immune-restoration-upon-cart-initiation
#13
Francesco Bellissimo, Marilia Rita Pinzone, Benedetto Maurizio Celesia, Bruno Cacopardo, Giuseppe Nunnari
INTRODUCTION: The reversal of CD4/CD8 ratio is considered an independent predictor of death in the general population, where the ratio physiologically decreases with aging. Despite effective cART, CD4/CD8 normalization does not always occur in HIV-positive subjects. In the setting of HIV, low CD4/CD8 T-cell ratio correlates with immune activation and non-AIDS events. The aim of the study was to evaluate the rate and predictors of CD4/CD8 ratio normalization in a cohort of HIV-positive subjects starting combination antiretroviral therapy (cART)...
2016: Current HIV Research
https://www.readbyqxmd.com/read/27806243/benefits-and-risks-of-antiretroviral-therapy-for-perinatal-hiv-prevention
#14
RANDOMIZED CONTROLLED TRIAL
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)...
3, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27886201/cryptococcal-meningitis-epidemiology-immunology-diagnosis-and-therapy
#15
REVIEW
Peter R Williamson, Joseph N Jarvis, Anil A Panackal, Matthew C Fisher, Síle F Molloy, Angela Loyse, Thomas S Harrison
HIV-associated cryptococcal meningitis is by far the most common cause of adult meningitis in many areas of the world that have high HIV seroprevalence. In most areas in Sub-Saharan Africa, the incidence of cryptococcal meningitis is not decreasing despite availability of antiretroviral therapy, because of issues of adherence and retention in HIV care. In addition, cryptococcal meningitis in HIV-seronegative individuals is a substantial problem: the risk of cryptococcal infection is increased in transplant recipients and other individuals with defects in cell-mediated immunity, and cryptococcosis is also reported in the apparently immunocompetent...
January 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27662501/kaposi-sarcoma-herpesvirus-associated-cancers-and-related-diseases
#16
Priscila H Goncalves, Joseph Ziegelbauer, Thomas S Uldrick, Robert Yarchoan
PURPOSE OF REVIEW: This review discusses the pathogenesis and recent advances in the management of Kaposi sarcoma herpesvirus (KSHV)-associated diseases. RECENT FINDINGS: KSHV, a gammaherpesvirus, causes several tumors and related diseases, including Kaposi sarcoma, a form of multicentric Castleman disease (KSHV-MCD), and primary effusion lymphoma. These most often develop in patients infected with human immunodeficiency virus (HIV). KSHV inflammatory cytokine syndrome (KICS) is a newly described syndrome with high mortality that has inflammatory symptoms-like MCD but not the pathologic lymph node findings...
January 2017: Current Opinion in HIV and AIDS
https://www.readbyqxmd.com/read/27905841/cell-delivered-entry-inhibitors-for-hiv-1-ccr5-downregulation-and-blocking-virus-membrane-fusion-in-defending-the-host-cell-population
#17
Geoff Symonds, Jeffrey S Bartlett, Hans-Peter Kiem, Marlene Tsie, Louis Breton
HIV-1 infection requires the presence of the CD4 receptor on the target cell surface and a coreceptor, predominantly CC-chemokine receptor 5 (CCR5). It has been shown that individuals who are homozygous for a defective CCR5 gene are protected from HIV-1 infection. A novel self-inactivating lentiviral vector LVsh5/C46 (Cal-1) has been engineered to block HIV-1 infection with two viral entry inhibitors, conferring resistance to HIV-1 infection from both CCR5 and CXCR4 tropic strains. Cal-1 encodes a short hairpin RNA (sh5) to downregulate CCR5 and C46, an HIV-1 fusion inhibitor...
December 2016: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/27462361/antiretroviral-treatment-regardless-of-cd4-count-the-universal-answer-to-a-contextual-question
#18
REVIEW
Serge P Eholié, Anani Badje, Gérard M Kouame, Jean-Baptiste N'takpe, Raoul Moh, Christine Danel, Xavier Anglaret
After a period where it was recommended to start antiretroviral therapy (ART) early, the CD4 threshold for treating asymptomatic adults dropped to 200/mm(3) at the beginning of the 2000s. This was mostly due to a great prudence with regards to drug toxicity. The ART-start CD4 threshold in most international guidelines was then raised to 350/mm(3) in 2006-2009 and to 500/mm(3) in 2009-2013. Between 2012 and 2015, international guidelines went the last step further and recommended treating all HIV-infected adults regardless of their CD4 count...
2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27677169/intolerance-of-dolutegravir-containing-cart-regimens-in-real-life-clinical-practice
#19
Mark de Boer, Guido van den Berk, Natasja van Holten, Josephine Oryszczyn, Willemien Dorama, Daoud Ait Moha, Kees Brinkman
OBJECTIVE: Dolutegravir (DGV) is one of the preferred antiretroviral agents in first line cART. Though considered a well-tolerated drug, we aimed to determine the actual rate, timing, and detailed motivation of stopping DGV in a real life clinical setting. DESIGN: a cohort study including all patients that started DGV in two HIV treatment centers in the Netherlands. METHODS: All cART-naïve and cART-experienced patients who had started DGV were identified from the institutional HIV-databases...
September 24, 2016: AIDS
https://www.readbyqxmd.com/read/27286296/the-potential-of-pre-exposure-prophylaxis-for-women-in-violent-relationships
#20
Amy Braksmajer, Theresa E Senn, James McMahon
HIV and intimate partner violence (IPV) are significant intersecting threats to women's health. Women in violent relationships have few feasible HIV risk reduction options as traditional prevention methods are largely dependent on a partner's cooperation. The purpose of this review is to explore potential benefits and drawbacks of pre-exposure prophylaxis (PrEP) use among women in the United States experiencing IPV. Advantages of PrEP use in this population include the potential for covert or autonomous use, coital independence, dual protection against sexual and injection risk, and facilitated connections to social services...
June 2016: AIDS Patient Care and STDs
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