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https://www.readbyqxmd.com/read/28634661/depression-and-art-initiation-among-hiv-serodiscordant-couples-in-kenya-and-uganda
#1
Jennifer Velloza, Connie Celum, Jessica E Haberer, Kenneth Ngure, Elizabeth Irungu, Nelly Mugo, Jared M Baeten, Renee Heffron
Depression is a known barrier for antiretroviral therapy (ART) adherence, but less is understood about its effects on ART initiation. We followed 1013 HIV-infected individuals participating in the Partners Demonstration Project, an open-label study of integrated pre-exposure prophylaxis (PrEP) and ART delivery for HIV serodiscordant couples in Kenya and Uganda. Associations between depression, measured annually with the Hopkins Symptoms Checklist-Depression (HSCL-D), and ART initiation were assessed with Cox proportional hazards regression...
June 20, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28634660/should-i-convince-my-partner-to-go-on-pre-exposure-prophylaxis%C3%A2-prep-the-role-of-personal-and-relationship-factors-on-prep-related-social-control-among-gay-and-bisexual-men
#2
Steven A John, Tyrel J Starks, H Jonathon Rendina, Christian Grov, Jeffrey T Parsons
An estimated 35-68% of new HIV infections among gay, bisexual, and other men who have sex with men (GBM) are transmitted through main partnerships. Pre-exposure prophylaxis (PrEP) is highly effective in reducing HIV seroconversion, yet PrEP uptake has been modest. PrEP-naïve GBM with HIV-negative, PrEP-naïve main partners enrolled in One Thousand Strong (n = 409), a U.S. national cohort of GBM, were asked about (1) the importance of partner PrEP use and (2) their willingness to convince their partner to initiate PrEP...
June 20, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28634155/perceptions-of-hiv-seriousness-risk-and-threat-among-online-samples-of-hiv-negative-men-who-have-sex-with-men-in-seven-countries
#3
Anna N Chard, Nicholas Metheny, Rob Stephenson
BACKGROUND: Rates of new HIV infections continue to increase worldwide among men who have sex with men (MSM). Despite effective prevention strategies such as condoms and pre-exposure prophylaxis (PrEP), low usage of both methods in many parts of the world hinder prevention efforts. An individual's perceptions of the risk of acquiring HIV and the seriousness they afford to seroconversion are important drivers of behavioral risk-taking. Understanding the behavioral factors suppressing the uptake of HIV prevention services is a critical step in informing strategies to improve interventions to combat the ongoing HIV pandemic among MSM...
June 20, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28634152/ensuring-inclusion-of-adolescent-key-populations-at-higher-risk-of-hiv-exposure-recommendations-for-conducting-biological-behavioral-surveillance-surveys
#4
Lisa Grazina Johnston, Justine Sass, Jeffry Acaba, Wing-Sie Cheng, Shirley Mark Prabhu
Ending acquired immune deficiency syndrome (AIDS) depends on greater efforts to reduce new human immunodeficiency virus (HIV) infections and prevent AIDS-related deaths among key populations at highest HIV risk, including males who have sex with males, sex workers, and people who inject drugs. Although adolescent key populations (AKP) are disproportionately affected by HIV, they have been largely ignored in HIV biological behavioral surveillance survey (BBSS) activities to date. This paper reviews current ethical and sampling challenges and provides suggestions to ensure AKP are included in surveillance activities, with the aim being to enhance evidence-informed, strategic, and targeted funding allocations and programs toward ending AIDS among AKP...
June 20, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28633455/fetal-metabolic-stress-disrupts-immune-homeostasis-and-induces-pro-inflammatory-responses-in-hiv-1-and-cart-exposed-infants
#5
Johannes C Schoeman, Gontse P Moutloatse, Amy C Harms, Rob J Vreeken, Henriette J Scherpbier, Liesbeth Van Leeuwen, Taco W Kuijpers, Carools J Reinecke, Ruud Berger, Thomas Hankemeier, Madeleine J Bunders
Increased morbidity and fetal growth restriction are reported in uninfected children born to HIV-1-infected women treated with antiretroviral (ARV) therapy. Viruses and/or pharmacological interventions such as ARVs can induce metabolic stress skewing the cell's immune response and restricting (cell) growth. Novel metabolomic techniques provided the opportunity to investigate the impact of fetal HIV-1 and combination ARV therapy (cART)-exposure on the infants' immune-metabolome. Peroxidized lipids, generated by reactive oxygen species, were increased in cART/HIV-1-exposed infants, indicating altered mitochondrial functioning...
June 17, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28633387/anal-intercourse-among-female-sex-workers-in-c%C3%A3-te-d-ivoire-prevalence-determinants-and-model-based-estimates-of-the-population-level-impact-on-hiv-transmission
#6
Mathieu Maheu-Giroux, Stefan Baral, Juan F Vesga, Daouda Diouf, Souleymane Diabaté, Michel Alary, Kouamé Abo, Marie-Claude Boily
Current evidence suggests that anal intercourse (AI) during sex work is common in sub-Saharan Africa, but few studies investigated the contribution of heterosexual AI to HIV epidemics. Using a respondent-driven sampling survey of female sex workers (FSW) in Abidjan (2014), we estimated AI prevalence and frequency. Poisson regressions were used to identify AI determinants. About 20% of FSW (N = 466) engaged in AI during a normal week (95% confidence intervals: 15-26%). Women who performed AI were generally younger, had been selling sex for longer, were born in Côte d'Ivoire, reported higher sex-work income, more frequent sex in public places, and violence from clients than women not reporting AI...
June 14, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28631059/trends-in-hiv-risk-testing-and-treatment-among-msm-in-chicago-2004-2014-implications-for-hiv-elimination-planning
#7
Ethan Morgan, Britt Skaathun, Nicola Lancki, Antonio D Jimenez, Jesus Ramirez-Valles, Ramona Bhatia, Stephanie Masiello-Schuette, Nanette Benbow, Nikhil Prachand, John A Schneider
Men who have sex with men (MSM) in the USA continue to have high rates of HIV infection. Increasingly, in addition to behavioral factors, biomedical interventions have been found to play important roles in HIV prevention. In this analysis, we used four waves of cross-sectional data (2004, 2008, 2011, and 2014) from the National HIV Behavioral Surveillance System (NHBS) to examine trends in key behaviors and biomedical interventions among MSM in Chicago (N = 3298). Logistic regression was used to determine changes in behaviors and use of biomedical interventions...
June 19, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28628665/a-chromosome-5q31-1-locus-associates-with-tuberculin-skin-test-reactivity-in-hiv-positive-individuals-from-tuberculosis-hyper-endemic-regions-in-east-africa
#8
Rafal S Sobota, Catherine M Stein, Nuri Kodaman, Isaac Maro, Wendy Wieland-Alter, Robert P Igo, Albert Magohe, LaShaunda L Malone, Keith Chervenak, Noemi B Hall, Mecky Matee, Harriet Mayanja-Kizza, Moses Joloba, Jason H Moore, William K Scott, Timothy Lahey, W Henry Boom, C Fordham von Reyn, Scott M Williams, Giorgio Sirugo
One in three people has been infected with Mycobacterium tuberculosis (MTB), and the risk for MTB infection in HIV-infected individuals is even higher. We hypothesized that HIV-positive individuals living in tuberculosis-endemic regions who do not get infected by Mycobacterium tuberculosis are genetically resistant. Using an "experiment of nature" design that proved successful in our previous work, we performed a genome-wide association study of tuberculin skin test positivity using 469 HIV-positive patients from prospective study cohorts of tuberculosis from Tanzania and Uganda to identify genetic loci associated with MTB infection in the context of HIV-infection...
June 19, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28627229/cobicistat-versus-ritonavir-similar-pharmacokinetic-enhancers-but-some-important-differences
#9
Alice Tseng, Christine A Hughes, Janet Wu, Jason Seet, Elizabeth J Phillips
OBJECTIVE: To describe properties of cobicistat and ritonavir; compare boosting data with atazanavir, darunavir, and elvitegravir; and summarize antiretroviral and comedication interaction studies, with a focus on similarities and differences between ritonavir and cobicistat. Considerations when switching from one booster to another are discussed. DATA SOURCES: A literature search of MEDLINE was performed (1985 to April 2017) using the following search terms: cobicistat, ritonavir, pharmacokinetic, drug interactions, booster, pharmacokinetic enhancer, HIV, antiretrovirals...
June 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28623271/decoy-peptide-targeted-to-toll-il-1r-domain-inhibits-lps-and-tlr4-active-metabolite-morphine-3-glucuronide-sensitization-of-sensory-neurons
#10
Yohance M Allette, Youngsook Kim, Aaron L Randolph, Jared A Smith, Matthew S Ripsch, Fletcher A White
Accumulating evidence indicates that Toll-like receptor (TLR) signaling adapter protein interactions with Toll/Interleukin-1 Receptor (TIR) domains present in sensory neurons may modulate neuropathic pain states. Following ligand interaction with TLRs, TIR serves to both initiate intracellular signaling and facilitate recruitment of signaling adapter proteins to the intracytoplasmic domain. Although TLR TIR is central to a number of TLR signaling cascades, its role in sensory neurons is poorly understood. In this study we investigated the degree to which TLR TIR decoy peptide modified to include a TAT sequence (Trans-Activator of Transcription gene in HIV; TAT-4BB) affected LPS-induced intracellular calcium flux and excitation in sensory neurons, and behavioral changes due to TLR4 active metabolite, morphine-3-glucuronide (M3G) exposure in vivo...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28621223/a-generation-at-risk-a-cross-sectional-study-on-hiv-aids-knowledge-exposure-to-mass-media-and-stigmatizing-behaviors-among-young-women-aged-15-24-years-in-ghana
#11
Charity Konadu Asamoah, Benedict Oppong Asamoah, Anette Agardh
HIV/AIDS stigmatizing behaviors are a huge barrier to early detection and treatment of individuals with the AIDS virus. HIV/AIDS stigma and related consequences are debilitating, especially for vulnerable populations. This study sought to assess whether young women's HIV/AIDS knowledge levels and exposure to mass media (television and radio) have an influence on their stigmatizing behaviors and role as agents of stigma towards individuals living with HIV and AIDS. The data used for this study originated from the Ghana Multiple Indicator Cluster Survey 2011...
2017: Global Health Action
https://www.readbyqxmd.com/read/28616719/are-partner-race-and-intimate-partner-violence-associated-with-incident-and-newly-diagnosed-hiv-infection-in-african-american-men-who-have-sex-with-men
#12
Matthew R Beymer, Nina T Harawa, Robert E Weiss, Chelsea L Shover, Brian R Toynes, Steven Meanley, Robert K Bolan
Black gay, bisexual, and other men who have sex with men (BMSM) experience a disparate rate of HIV infections among MSM. Previous analyses have determined that STI coinfection and undiagnosed HIV infection partly explain the disparity. However, few studies have analyzed the impact of partner-level variables on HIV incidence among BMSM. Data were analyzed for BMSM who attended the Los Angeles LGBT Center from August 2011 to July 2015 (n = 1974) to identify risk factors for HIV infection. A multivariable logistic regression was used to analyze predictors for HIV prevalence among all individuals at first test (n = 1974; entire sample)...
June 14, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28616684/influence-of-ethanol-on-darunavir-hepatic-clearance-and-intracellular-pk-pd-in-hiv-infected-monocytes-and-cyp3a4-darunavir-interactions-using-inhibition-and-in-silico-binding-studies
#13
Narasimha M Midde, Yuqing Gong, Theodore J Cory, Junhao Li, Bernd Meibohm, Weihua Li, Santosh Kumar
PURPOSE: Although the prevalence of alcohol consumption is higher in HIV+ people than general public, limited information is available on how alcohol affects the metabolism and bioavailability of darunavir (DRV). METHODS: DRV was quantified by using LC-MS/MS method. All in vitro experiments were performed using human liver microsomes and HIV-infected monocytic cells. CYP3A4 and DRV/Ritonavir (RTV) docking was performed using GOLD suite 5.8. RESULTS: Ethanol (20 mM) significantly decreased apparent half-life and increased degradation rate constant of RTV-boosted DRV but not for DRV alone...
June 14, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28615975/pre-exposure-prophylaxis-for-hiv-prevention-in-women-current-perspectives
#14
REVIEW
Charlene A Flash, Sannisha K Dale, Douglas S Krakower
There are ~900,000 new HIV infections among women every year, representing nearly half of all new HIV infections globally. In the US, nearly one-fifth of all new HIV infections occur among women, and women from racial and ethnic minority communities experience disproportionately high rates of new HIV infections. Thus, there is a need to develop and implement effective HIV prevention strategies for women in the US and internationally, with a specific need to advance strategies in minority communities. Previous studies have demonstrated that oral HIV pre-exposure prophylaxis (PrEP), the use of antiretroviral medications by HIV-uninfected persons to prevent HIV acquisition, can reduce HIV incidence among women who are adherent to PrEP...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28615206/plasticity-and-epitope-exposure-of-the-hiv-1-envelope-trimer
#15
Rebecca L R Powell, Maxim Totrov, Vincenza Itri, Xiaomei Liu, Alisa Fox, Susan Zolla-Pazner
We recently showed that mutations in the HIV-1 Envelope (Env) destabilize the V3 loop, rendering neutralization-resistant viruses sensitive to V3-directed monoclonal antibodies (mAbs). Here we investigated the propagation of this effect on other Env epitopes, with special emphasis on V2 loop exposure. Wildtype JR-FL and 19 mutant JR-FL pseudoviruses were tested for neutralization sensitivity to 21 mAbs specific for epitopes in V2, the CD4 binding site (CD4bs), and the CD4-induced (CD4i) region. Certain glycan mutants, mutations in the gp120 hydrophobic core, and mutations in residues involved in intra-protomer interactions exposed epitopes in the V2i region (overlays the α4β7 integrin binding site) and the V3 crown, suggesting a general destabilization of the distal region of the trimer apex...
June 14, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28615205/intrasubtype-b-hiv-1-superinfection-correlates-with-delayed-neutralizing-antibody-response
#16
Gabriel A Wagner, Elise Landais, Gemma Caballero, Pham Phung, Sergei L Kosakovsky Pond, Pascal Poignard, Douglas D Richman, Susan J Little, Davey M Smith
Understanding whether the neutralizing antibody (NAb) response impacts HIV-1 superinfection and how superinfection subsequently modulates the NAb response can help clarify correlates of protection from HIV exposures, and better delineate pathways of NAb development. We examined associations between the development of NAb and the occurrence of superinfection in a well-characterized, antiretroviral therapy (ART) naive, primary infection cohort of men who have sex with men. Deep sequencing was applied to blood plasma samples from the cohort to detect cases of superinfection...
June 14, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28615199/impaired-downregulation-of-nkg2d-ligands-by-nef-protein-from-elite-controllers-sensitizes-hiv-1-infected-cells-to-adcc
#17
Nirmin Alsahafi, Jonathan Richard, Jérémie Prévost, Mathieu Coutu, Nathalie Brassard, Matthew S Parsons, Daniel E Kaufmann, Mark Brockman, Andrés Finzi
HIV-1 Nef clones isolated from a rare subset of HIV-1-infected elite controllers (EC), with the ability to suppress viral load to undetectable levels in the absence of antiretroviral therapy, are unable to fully downregulate CD4 from the plasma membrane of CD4+ T cells. Residual CD4 left at the plasma membrane allows Env-CD4 interaction, which leads to increased exposure of Env CD4-induced epitopes and increases susceptibility of infected cells to antibody-dependent cellular cytotoxicity (ADCC). ADCC is mediated largely by natural killer (NK) cells, which control their activation status through the cumulative signals received through activating and inhibitory receptors...
June 14, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28612589/-post-exposure-prophylaxis-against-hiv-do-we-use-our-resources-appropriately
#18
R Escudero-Sánchez, C J Kurt Meier-de-Taboada, E Bartolome-García, P M Rodríguez-de-Bethencourt-Sanjuan, J E Losa-García
OBJECTIVE: Post-exposure prophylaxis (PEP) against human immunodeficiency virus can be occupational, non-occupational or vertical transmission. The aim of our study was to analyse the indication and treatment carried out in a hospital. METHODS: Retrospective observational study that included all patients who received PEP between 2006 and 2014. The project was approved by the Committee for Ethics in Clinical Research. RESULTS: We evaluated 54 PEP, which were started at 11...
June 14, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28612340/long-acting-systemic-hiv-pre-exposure-prophylaxis-an-examination-of-the-field
#19
REVIEW
William R Lykins, Ellen Luecke, Daniel Johengen, Ariane van der Straten, Tejal A Desai
Oral pre-exposure prophylaxis for the prevention of HIV-1 transmission (HIV PrEP) has been widely successful as demonstrated by a number of clinical trials. However, studies have also demonstrated the need for patients to tightly adhere to oral dosing regimens in order to maintain protective plasma and tissue concentrations. This is especially true for women, who experience less forgiveness from dose skipping than men in clinical trials of HIV PrEP. There is increasing interest in long-acting (LA), user-independent forms of HIV PrEP that could overcome this adherence challenge...
June 13, 2017: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/28611512/hepatitis-a-virus-infection-and-hepatitis-a-vaccination-in-human-immunodeficiency-virus-positive-patients-a-review
#20
REVIEW
Kuan-Yin Lin, Guan-Jhou Chen, Yu-Lin Lee, Yi-Chia Huang, Aristine Cheng, Hsin-Yun Sun, Sui-Yuan Chang, Chun-Eng Liu, Chien-Ching Hung
Hepatitis A virus (HAV) is one of the most common infectious etiologies of acute hepatitis worldwide. The virus is known to be transmitted fecal-orally, resulting in symptoms ranging from asymptomatic infection to fulminant hepatitis. HAV can also be transmitted through oral-anal sex. Residents from regions of low endemicity for HAV infection often remain susceptible in their adulthood. Therefore, clustered HAV infections or outbreaks of acute hepatitis A among men who have sex with men and injecting drug users have been reported in countries of low endemicity for HAV infection...
May 28, 2017: World Journal of Gastroenterology: WJG
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