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https://www.readbyqxmd.com/read/29454927/syndemics-among-individuals-enrolled-in-the-prep-brasil-study
#1
Raquel B De Boni, Iona K Machado, Mauricio T L De Vasconcellos, Brenda Hoagland, Esper G Kallas, José Valdez Madruga, Nilo M Fernandes, Natalia B Cerqueira, Ronaldo I Moreira, Silvia P Goulart, Valdilea G Veloso, Beatriz Grinsztejn, Paula M Luz
BACKGROUND: Concurrent psychosocial problems may synergistically increase the risk of HIV infection (syndemics), representing a challenge for prevention. We aimed to evaluate the prevalence and associated factors of syndemics among men who have sex with men (MSM) and transgender women (TGW) enrolled in the Brazilian pre-exposure prophylaxis demonstration study (PrEP Brasil Study). METHODS: Secondary cross-sectional analysis of the PrEP Brasil Study was performed...
February 10, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29454844/the-epidemiology-of-febrile-illness-in-sub-saharan-africa-implications-for-diagnosis-and-management
#2
REVIEW
Michael J Maze, Quique Bassat, Nicholas A Feasey, Inácio Mandomando, Patrick Musicha, John A Crump
BACKGROUND: Fever is among the most common symptoms of people living in Africa, and clinicians are challenged by the similar clinical features of a wide spectrum of potential aetiologies. AIM: To summarise recent studies of fever aetiology in sub-Saharan Africa focusing on causes other than malaria. SOURCES: A narrative literature review by searching the MEDLINE database, and recent conference abstracts. CONTENT: Studies of multiple potential causes of fever are scarce, and for many participants the infecting organism remains unidentified, or multiple co-infecting microorganisms are identified, and establishing causation is challenging...
February 15, 2018: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29454646/alteration-of-ccr6-cd95-cd4-na%C3%A3-ve-t-cells-in-hiv-1-infected-patients-implication-for-clinical-practice
#3
Hong Sun, Wenqing Geng, Hualu Cui, Guoxin Liang, Yajing Fu, Zining Zhang, Yongjun Jiang, Haibo Ding, Junjie Xu, Hong Shang
The profound deficiency of Th17 cells contributes to HIV disease progression. The mechanisms of their perturbation remain unclear. Recently, CCR6+ CD95+ CD4+ naïve T cells (CCR6+ CD95+ CD4+ TNA ), identified as pre-committed Th17 precursors, were recognized as a subpopulation of CD4+ T cells with stem cell properties. Following phenotypical identification, we evaluated their level in patients during chronic HIV infection and following antiretroviral therapy (ART) using flow cytometry. The levels of CCR6+ CD95+ CD4+ TNA were decreased during chronic HIV infection and correlated with CD4+ T cell counts...
February 10, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29453551/characterization-of-hiv-recent-infection-among-high-risk-men-at-public-sti-clinics-in-mumbai
#4
Hong-Ha M Truong, Robin Fatch, Robert M Grant, Meenakshi Mathur, Sameer Kumta, Hemangi Jerajani, Timothy A Kellogg, Christina P Lindan
We examined associations with HIV recent infection and estimated transmitted drug resistance (TDR) prevalence among 3345 men at sexually transmitted infection clinics in Mumbai (2002-2005). HIV seroincidence was 7.92% by the BED-CEIA and was higher at a clinic located near brothels (12.39%) than at a hospital-based clinic (3.94%). HIV recent infection was associated with a lifetime history of female sex worker (FSW) partners, HSV-2, genital warts, and gonorrhea. TDR prevalence among recent infection cases was 5...
February 16, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29452950/dynamic-fungal-cell-wall-architecture-in-stress-adaptation-and-immune-evasion
#5
REVIEW
Alex Hopke, Alistair J P Brown, Rebecca A Hall, Robert T Wheeler
Deadly infections from opportunistic fungi have risen in frequency, largely because of the at-risk immunocompromised population created by advances in modern medicine and the HIV/AIDS pandemic. This review focuses on dynamics of the fungal polysaccharide cell wall, which plays an outsized role in fungal pathogenesis and therapy because it acts as both an environmental barrier and as the major interface with the host immune system. Human fungal pathogens use architectural strategies to mask epitopes from the host and prevent immune surveillance, and recent work elucidates how biotic and abiotic stresses present during infection can either block or enhance masking...
February 13, 2018: Trends in Microbiology
https://www.readbyqxmd.com/read/29451894/trade-off-between-synergy-and-efficacy-in-combinations-of-hiv-1-latency-reversing-agents
#6
Vipul Gupta, Narendra M Dixit
Eradicating HIV-1 infection is difficult because of the reservoir of latently infected cells that gets established soon after infection, remains hidden from antiretroviral drugs and host immune responses, and retains the capacity to reignite infection following the cessation of treatment. Drugs called latency-reversing agents (LRAs) are being developed to reactivate latently infected cells and render them susceptible to viral cytopathicity or immune killing. Whereas individual LRAs have failed to induce adequate reactivation, pairs of LRAs have been identified recently that act synergistically and hugely increase reactivation levels compared to individual LRAs...
February 16, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29447196/nasopharyngeal-carriage-of-streptococcus-pneumoniae-among-hiv-infected-and-uninfected-children-5-years-of-age-before-introduction-of-pneumococcal-conjugate-vaccine-in-mozambique
#7
Jennifer R Verani, Sérgio Massora, Sozinho Acácio, Rita Teresa Dos Santos, Delfino Vubil, Fabiana Pimenta, Iaci Moura, Cynthia G Whitney, Maria Helena Costa, Eusébio Macete, Maria Benigna Matsinhe, Maria da Gloria Carvalho, Betuel Sigaúque
Nasopharyngeal carriage is a precursor for pneumococcal disease and can be useful for evaluating pneumococcal conjugate vaccine (PCV) impact. We studied pre-PCV pneumococcal carriage among HIV-infected and -uninfected children in Mozambique. Between October 2012 and March 2013, we enrolled HIV-infected children age <5 years presenting for routine care at seven HIV clinics in 3 sites, including Maputo (urban-south), Nampula (urban-north), and Manhiça (rural-south). We also enrolled a random sample of HIV-uninfected children <5 years old from a demographic surveillance site in Manhiça...
2018: PloS One
https://www.readbyqxmd.com/read/29446470/hev-and-hav-seroprevalence-in-men-that-have-sex-with-men-msm-an-update-from-milan-italy
#8
Letizia Greco, Sara Colonia Uceda Renteria, Davide Guarneri, Anna Orlandi, Antonella Zoccoli, Susanna Benardon, Marco Cusini, Giovanna Lunghi
Hepatitis E virus (HEV) is a feco-orally transmitted pathogen and one of the most common cause of acute hepatitis worldwide. Recent studies in developed countries suggested that a direct human-to-human contact such as for sexually transmitted diseases may play a significant role in the HEV spread. The aim of this study was to investigate the seroprevalence of HEV and HAV in a group of MSM, including subjects HIV and Treponema infected, in Milan, Italy. The overall anti HEV IgG seroprevalence in MSM was 10.2% (65/636), instead in the control group the detection rate was 5...
February 15, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29445452/exploiting-immune-cell-metabolic-machinery-for-functional-hiv-cure-and-the-prevention-of-inflammaging
#9
REVIEW
Clovis S Palmer, Riya Palchaudhuri, Hassan Albargy, Mohamed Abdel-Mohsen, Suzanne M Crowe
An emerging paradigm in immunology suggests that metabolic reprogramming and immune cell activation and functions are intricately linked. Viral infections, such as HIV infection, as well as cancer force immune cells to undergo major metabolic challenges. Cells must divert energy resources in order to mount an effective immune response. However, the fact that immune cells adopt specific metabolic programs to provide host defense against intracellular pathogens and how this metabolic shift impacts immune cell functions and the natural course of diseases have only recently been appreciated...
2018: F1000Research
https://www.readbyqxmd.com/read/29444685/prevalence-and-correlates-of-hiv-infection-among-men-who-inject-drugs-in-a-remote-area-of-vietnam
#10
Van T Nghiem, Thanh C Bui, Patrick P Nadol, Son H Phan, Binh T Kieu, Ryan Kling, Theodore M Hammett
BACKGROUND: Lack of information on the HIV epidemic among men who inject drugs (MWID) in northwestern Vietnam, a remote area, may hamper national efforts to control the disease. We examined HIV prevalence, needle-syringe sharing behaviors, and associated factors among MWID in three areas of northwestern Vietnam. METHODS: We used descriptive analysis to report the characteristics, frequency of risk behaviors, and of access to healthcare services among the MWID. Univariable logistic regression was used to assess the associations between the HIV infection, needle-syringe sharing behaviors, and their independent variables...
February 14, 2018: Harm Reduction Journal
https://www.readbyqxmd.com/read/29443540/targeted-elimination-of-peroxisomes-during-viral-infection-lessons-from-hiv-and-other-viruses
#11
Cheung Pang Wong, Zaikun Xu, Christopher Power, Tom C Hobman
Peroxisomes are membrane-bound organelles that are best known for their roles in lipid metabolism. Mounting evidence indicates that they are also important nodes for antiviral signaling. While research over the past few decades has revealed effective viral strategies to block antiviral signalling pathways from the plasma membrane, mitochondria and/or the nucleus, until recently, very little was known about how viruses interfere with peroxisome-based antiviral signaling. In this essay, we review how viruses use a variety of strategies to interfere with peroxisome biogenesis, a phenomenon that has implications for evasion of the host immune system as well as pathogenesis...
February 14, 2018: DNA and Cell Biology
https://www.readbyqxmd.com/read/29441145/epigenetic-regulation-of-hiv-1-latency-focus-on-polycomb-group-pcg-proteins
#12
REVIEW
Sheraz Khan, Mazhar Iqbal, Muhammad Tariq, Shahid M Baig, Wasim Abbas
HIV-1 latency allows the virus to persist until reactivation, in a transcriptionally silent form in its cellular reservoirs despite the presence of effective cART. Such viral persistence represents a major barrier to HIV eradication since treatment interruption leads to rebound plasma viremia. Polycomb group (PcG) proteins have recently got a considerable attention in regulating HIV-1 post-integration latency as they are involved in the repression of proviral gene expression through the methylation of histones...
2018: Clinical Epigenetics
https://www.readbyqxmd.com/read/29439583/identification-of-a-novel-hiv-1-recombinant-form-b-c-in-men-who-have-sex-with-men-in-shaanxi-china
#13
Mengyan Zhang, Ruolei Xin, Wenhui Chang
Many new circulating recombinant forms (CRFs) and unique recombinant forms (URFs) of HIV-1 have been found in men who have sex with men (MSM) in recent years, in China. In this study, a unique HIV-1 recombinant genome (SN153) was characterized from an HIV-positive male infected through homosexual behavior in Shaanxi, China. The mosaic pattern had a complex intersubtype recombinant structure with six breakpoints, with three subtype C segments inserted into subtype B backbone. And three similar breakpoints with CRF07_BC were observed in the pol gene...
February 14, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29439582/diversity-of-hiv-1-in-aquitaine-south-western-france-2012-2016
#14
Camille Tumiotto, Pantxika Bellecave, Patricia Recordon-Pinson, Alexi Groppi, Macha Nikolski, Herve J Fleury
We have estimated the prevalence of the different viral subtypes between January 2012 and December 2016 in HIV-1-infected patients of the Aquitaine region (south-west part of France) who had a routine HIV-1 genotype resistance testing (GRT) centralized at the Bordeaux University Hospital. GRT was performed on viral RNA (1784 samples) before treatment initiation or at failure whereas proviral DNA was used as template (1420 samples) in the event of a treatment switch in patients with viral load below 50 copies/mL...
February 14, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29439188/incidence-and-risk-factors-for-relapses-in-hiv-associated-non-hodgkin-lymphoma-as-observed-in-the-german-hiv-related-lymphoma-cohort-study
#15
Philipp Schommers, Daniel Gillor, Marcus Hentrich, Christoph Wyen, Timo Wolf, Mark Oette, Alexander Zoufaly, Jan-Christian Wasmuth, Johannes R Bogner, Marcus Müller, Stefan Esser, Alisa Schleicher, Bjöern Jensen, Albrecht Stoehr, Georg Behrens, Alexander Schultze, Jan Siehl, Jan Thoden, Ninon Taylor, Christian Hoffmann
Outcome of HIV-infected patients with AIDS-related lymphomas has improved during recent years. However, data on incidence, risk factors, and outcome of relapses in AIDS-related lymphomas after achieving complete remission are still limited. This prospective observational multicenter study includes HIV-infected patients with biopsy- or cytology proven malignant lymphomas since 2005. Data on HIV infection and lymphoma characteristics, treatment and outcome were recorded. For this analysis, AIDS-related lymphomas patients in complete remission were analyzed in terms of their relapse-free survival and potential risk factors for relapses...
February 8, 2018: Haematologica
https://www.readbyqxmd.com/read/29438560/hiite-hiv-1-incidence-and-infection-time-estimator
#16
Sung Yong Park, Tanzy M T Love, Shivankur Kapoor, Ha Youn Lee, John Hancock
Motivation: Around 2.1 million new HIV-1 infections were reported in 2015, alerting that the HIV-1 epidemic remains a significant global health challenge. Precise incidence assessment strengthens epidemic monitoring efforts and guides strategy optimization for prevention programs. Estimating the onset time of HIV-1 infection can facilitate optimal clinical management and identify key populations largely responsible for epidemic spread and thereby infer HIV-1 transmission chains. Our goal is to develop a genomic assay estimating the incidence and infection time in a single cross-sectional survey setting...
February 9, 2018: Bioinformatics
https://www.readbyqxmd.com/read/29436977/injection-related-hepatitis-c-serosorting-behaviors-among-people-who-inject-drugs-an-urban-rural-comparison
#17
Ian Duncan, Patrick Habecker, Dane Hautala, Bilal Khan, Kirk Dombrowski
Although previous research has focused on injection drug use behaviors in both urban and rural settings, few have drawn direct comparisons between adjacent rural and urban areas. Using data from the National HIV Behavioral Surveillance study as well as original data collected in a similar fashion, we compare the risk behaviors of people who inject drugs (PWID) in San Juan, Puerto Rico, with those of PWID in nearby rural areas. Specifically, we examine whether one's own hepatitis C (HCV) infection status can be used to predict whether one asked their most recent co-injection partner about their HCV status...
February 13, 2018: Journal of Ethnicity in Substance Abuse
https://www.readbyqxmd.com/read/29435953/role-of-noncommunicable-diseases-ncds-in-resource-limited-settings-rls
#18
REVIEW
Mosepele Mosepele, Elizabeth Botsile
PURPOSE OF REVIEW: As access to effective antiretroviral therapy (ART) expands globally, a decline in AIDS-related morbidity and mortality has been complicated by rising rates of noncommunicable diseases (NCDs). This review provides a brief description of NCDs and existing gaps on knowledge about NCDs among HIV-infected adults mostly in Africa. RECENT FINDINGS: Recent reports show that one in every five persons living with HIV has a chronic illness, predominantly diabetes and/or hypertension, depression, and most of these conditions are either not diagnosed or not being managed...
February 12, 2018: Current HIV/AIDS Reports
https://www.readbyqxmd.com/read/29435907/sustained-virological-response-in-special-populations-with-chronic-hepatitis-c-using-interferon-free-treatments-a-systematic-review-and-meta-analysis-of-observational-cohort-studies
#19
REVIEW
Vinicius Lins Ferreira, Letícia Paula Leonart, Fernanda Stumpf Tonin, Helena Hiemisch Lobo Borba, Roberto Pontarolo
BACKGROUND AND OBJECTIVES: Hepatitis C treatment has changed considerably in recent years, and many interferon (IFN)-free therapies are now available. Considering the high rates of sustained virological response (SVR) presented by clinical trials for these treatments, high rates of effectiveness are also expected in real-world clinical practice. Hence, this study aimed to conduct a systematic review and meta-analysis of observational cohort studies to evaluate the clinical effectiveness and safety of IFN-free therapies for hepatitis C...
February 12, 2018: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29435829/an-siv-macaque-model-of-siv-and-hand-the-need-for-adjunctive-therapies-in-hiv-that-target-activated-monocytes-and-macrophages
#20
REVIEW
Jaclyn Mallard, Kenneth Williams
Non-human primate models of AIDS and neuroAIDS are critical to study HIV infection of the CNS, neuropathology, and immune activation and macrophage accumulation that occurs in HAND. SIV, similar to HIV, infects CD4+ T lymphocytes and monocytes/macrophages. Virus enters the CNS early, and macrophage activation correlates with CNS disease, as well as inflammation outside of the CNS. Antiretroviral in HIV+ humans and SIV+ Rhesus macaques results in non-detectable plasma virus, decreased or non-detectable viral RNA or protein in the CNS...
February 12, 2018: Journal of Neurovirology
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