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https://www.readbyqxmd.com/read/28822954/the-variability-of-hepatitis-b-envelope-is-associated-with-hbs-antigen-persistence-in-either-chronic-or-acute-hbv-genotype-a-infection
#1
Marine Eschlimann, Brice Malvé, Aurélie Velay, Honorine Fenaux, Sibel Berger, Jean-Pol Frippiat, Fabien Zoulim, Mouni Bensenane, Jean-Pierre Bronowicki, François Goehringer, Thierry May, Hélène Jeulin, Evelyne Schvoerer
BACKGROUND: More than 240 million people are chronically infected by hepatitis B virus (HBV) worldwide. Envelope proteins play a crucial role in viral cellular entry and immune recognition. The loss of HBs antigen (HBsAg) correlated with a good clinical prognosis is rarely achieved with or without treatment (3-16%). OBJECTIVES: HBV envelope variability was investigated according to HBsAg persistence. STUDY DESIGN: The cohort consisted of 15 HBV genotype A-infected patients divided into "resolvers", with HBsAg clearance, and "non-resolvers", with HBsAg persistence and in subgroups: acute (n=5, AHBV) or chronic infection (n=4, CHBV) and HBV/HIV coinfection (n=6, CHBV/HIV)...
August 5, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28822719/thalidomide-is-associated-with-increased-t-cell-activation-and-inflammation-in-antiretroviral-naive-hiv-infected-individuals-in-a-randomised-clinical-trial-of-efficacy-and-safety
#2
Tânia R C Vergara, Sadia Samer, Joanna R Santos-Oliveira, Leila B Giron, Muhammad Shoaib Arif, Maria Luciana Silva-Freitas, Lia A Cherman, Mauro S Treitsman, Alberto Chebabo, Maria Cecilia A Sucupira, Alda M Da-Cruz, Ricardo Sobhie Diaz
TRIAL DESIGN: Open-label, randomised, controlled, pilot proof-of-concept clinical trial. METHODS: Participants: Antiretroviral naïve adult males with CD4 count ≥350cells/mm(3). INTERVENTIONS: Patients were randomised to receive thalidomide 200mg QD for 3weeks (Thalidomide group) or not (Control group) and followed for 48weeks. OBJECTIVE: We hypothesized that short-term Thalidomide use would reduce HIV related inflammation and HIV replication among antiretroviral naïve HIV infected individuals...
August 12, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28822563/effect-of-pericardial-fat-volume-and-density-on-markers-of-insulin-resistance-and-inflammation-in-patients-with-human-immunodeficiency-virus-infection
#3
Chris T Longenecker, Seunghee Margevicius, Yiying Liu, Mark D Schluchter, Chun-Ho Yun, Hiram G Bezerra, Grace A McComsey
Treated human immunodeficiency virus (HIV) infection is characterized by ectopic fat deposition, a persistent inflammatory state, and increased cardiometabolic risk. In this secondary analysis of a placebo controlled trial of rosuvastatin among 147 HIV+ subjects (median age 46; 78% men) on stable antiretroviral therapy, we aimed to evaluate longitudinal associations between computed tomography (CT) measures of pericardial fat (PCF) volume and density, insulin resistance, and inflammation. We measured PCF volume and density (mean attenuation in Hounsfield units) by noncontrast gated CT at baseline and week 96...
July 24, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28821264/impact-of-early-initiation-versus-national-standard-of-care-of-antiretroviral-therapy-in-swaziland-s-public-sector-health-system-study-protocol-for-a-stepped-wedge-randomized-trial
#4
Fiona J Walsh, Till Bärnighausen, Wim Delva, Yvette Fleming, Gavin Khumalo, Charlotte L Lejeune, Sikhathele Mazibuko, Charmaine Khudzie Mlambo, Ria Reis, Donna Spiegelman, Mandisa Zwane, Velephi Okello
BACKGROUND: There is robust clinical evidence to support offering early access to antiretroviral treatment (ART) to all HIV-positive individuals, irrespective of disease stage, to both improve patient health outcomes and reduce HIV incidence. However, as the global treatment guidelines shift to meet this evidence, it is still largely unknown if early access to ART for all (also referred to as "treatment as prevention" or "universal test and treat") is a feasible intervention in the resource-limited countries where this approach could have the biggest impact on the course of the HIV epidemics...
August 18, 2017: Trials
https://www.readbyqxmd.com/read/28820724/neurologic-complications-in-persons-with-hiv-infection-in-the-era-of-antiretroviral-therapy
#5
Dennis Kolson
Neurologic complications in persons with HIV infection are less severe in the era of potent antiretroviral therapy but remain highly prevalent. Prior to the use of antiretroviral therapy, opportunistic infections of the central nervous system (CNS) and CNS malignancy were common. Progressive multifocal leukoencephalopathy (PML), however, remains a diagnostic challenge in HIV-infected individuals, and no effective antiviral treatment for PML is currently available. Primary neurologic complications of acute HIV infection include aseptic meningitis and acute inflammatory demyelinating polyneuropathy...
July 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28820702/predictive-model-for-permanent-shunting-in-cryptococcal-meningitis
#6
Woralux Phusoongnern, Siriluck Anunnatsiri, Kittisak Sawanyawisuth, Amnat Kitkhuandee
Cryptococcal meningitis may have long-term morbidity and requires a permanent cerebrospinal fluid shunt. This study aimed to evaluate the risk factors and create a predictive model for permanent shunt treatment in cryptococcal meningitis patients. This was a retrospective analytical study conducted at Khon Kaen University. The study period was from January 2005 to December 2015. We enrolled all adult patients diagnosed with cryptococcal meningitis. Risk factors predictive for permanent shunting treatment were analyzed by multivariate logistic regression analysis...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820347/association-between-eye-diagnosis-and-positive-syphilis-test-results-in-a-large-urban-sexually-transmitted-infection-primary-care-clinic-population
#7
Ann-Marie Lobo, Yan Gao, Laura Rusie, Magda Houlberg, Supriya D Mehta
In 2015, the Centers for Disease Control and Prevention (CDC) and the American Academy of Ophthalmology (AAO) released clinical advisories on rising cases of ocular syphilis. We examined the association between eye disease and syphilis infection among primary care and sexually transmitted infection (STI) clinic patients attending an urban lesbian, gay, bisexual, transgender (LGBT) health center. We conducted a retrospective medical record review of all patients who underwent syphilis testing at Howard Brown Health between 1 January 2010 and 31 December 2015...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28820346/attitudes-and-potential-barriers-towards-hepatitis-c-treatment-in-patients-with-and-without-hiv-coinfection
#8
P R Allyn, S M O'Malley, J Ferguson, C H Tseng, K W Chew, D Bhattacharya
This study aimed to assess attitudes and potential barriers towards treatment in patients with hepatitis C virus (HCV) infection, comparing those with and without HIV coinfection. A cross-sectional survey of 82 HCV-infected adults with and without HIV was conducted in greater Los Angeles between November 2013 and July 2015. Overall, there were 53 (64.6%) with HIV coinfection, 20 (25.0%) with self-reported cirrhosis, and 22 (26.8%) with a history of prior HCV treatment. Of all, 93.2% wanted HCV treatment, but 45...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28820273/psychological-distress-health-and-treatment-related-factors-among-individuals-initiating-art-in-oromia-ethiopia
#9
Angela M Parcesepe, Olga Tymejczyk, Robert Remien, Tsigereda Gadisa, Sarah Gorrell Kulkarni, Susie Hoffman, Zenebe Melaku, Batya Elul, Denis Nash
HIV diagnosis may be a source of psychological distress. Late initiation of antiretroviral therapy (ART) and treatment-related beliefs may intensify psychological distress among those recently diagnosed. This analysis describes the prevalence of psychological distress among people living with HIV (PLWH) and examines the association of recent HIV diagnosis, late ART initiation and treatment-related beliefs with psychological distress. The sample includes 1175 PLWH aged 18 or older initiating ART at six HIV clinics in Ethiopia...
August 18, 2017: AIDS Care
https://www.readbyqxmd.com/read/28819738/high-dose-8-capsaicin-patch-in-treatment-of-chemotherapy-induced-peripheral-neuropathy-single-center-experience
#10
Iwona Filipczak-Bryniarska, Roger M Krzyzewski, Jakub Kucharz, Anna Michalowska-Kaczmarczyk, Justyna Kleja, Jarosław Woron, Katarzyna Strzepek, Lucyna Kazior, Jerzy Wordliczek, Tomasz Grodzicki, Krzysztof Krzemieniecki
High-dose capsaicin patch is effective in treatment of neuropathic pain in HIV-associated neuropathy and diabetic neuropathy. There are no studies assessing effectiveness of high-dose capsaicin patch in treatment of chemotherapy-induced peripheral neuropathy. We sought to determine the effectiveness of treatment of pain associated with chemotherapy-induced peripheral neuropathy with high-dose capsaicin patch. Our study group consisted of 18 patients with clinically confirmed oxaliplatin-induced neuropathy. Baseline characteristic including underling disease, received cumulative dose of neurotoxic agent, neuropathic symptoms, prior treatment and initial pain level were recorded...
August 17, 2017: Medical Oncology
https://www.readbyqxmd.com/read/28819470/causes-of-death-and-factors-associated-with-early-mortality-of-hiv-infected-adults-admitted-to-korle-bu-teaching-hospital
#11
Adriana Saavedra, Nia Campinha-Bacote, Maurice Hajjar, Ernest Kenu, Fizza Syeda Gillani, Adjoa Obo-Akwa, Margaret Lartey, Awewura Kwara
INTRODUCTION: This study sought to identify common causes of death as well as the factors associated with the high inpatient mortality rate of HIV-infected patients at the Korle-Bu Teaching Hospital (KBTH). METHODS: The retrospective study reviewed the medical records of 547 HIV-infected adults aged 18 years or older admitted to the KBTH between the months of January 2012 and October 2013. Using standardized abstraction forms, clinical and demographic data of eligible patients was collected...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28819312/shared-peptide-binding-of-hla-class-i-and-ii-alleles-associate-with-cutaneous-nevirapine-hypersensitivity-and-identify-novel-risk-alleles
#12
Rebecca Pavlos, Elizabeth J McKinnon, David A Ostrov, Bjoern Peters, Soren Buus, David Koelle, Abha Chopra, Ryan Schutte, Craig Rive, Alec Redwood, Susana Restrepo, Austin Bracey, Thomas Kaever, Paisley Myers, Ellen Speers, Stacy A Malaker, Jeffrey Shabanowitz, Yuan Jing, Silvana Gaudieri, Donald F Hunt, Mary Carrington, David W Haas, Simon Mallal, Elizabeth J Phillips
Genes of the human leukocyte antigen (HLA) system encode cell-surface proteins involved in regulation of immune responses, and the way drugs interact with the HLA peptide binding groove is important in the immunopathogenesis of T-cell mediated drug hypersensitivity syndromes. Nevirapine (NVP), is an HIV-1 antiretroviral with treatment-limiting hypersensitivity reactions (HSRs) associated with multiple class I and II HLA alleles. Here we utilize a novel analytical approach to explore these multi-allelic associations by systematically examining HLA molecules for similarities in peptide binding specificities and binding pocket structure...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819214/hiv-1-nef-induced-cardiotoxicity-through-dysregulation-of-autophagy
#13
Manish K Gupta, Rafal Kaminski, Brian Mullen, Jennifer Gordon, Tricia H Burdo, Joseph Y Cheung, Arthur M Feldman, Muniswamy Madesh, Kamel Khalili
Cardiovascular disease is a leading cause of co-morbidity in HIV-1 positive patients, even those in whom plasma virus levels are well-controlled. The pathogenic mechanism of HIV-1-associated cardiomyopathy is unknown, but has been presumed to be mediated indirectly, owing to the absence of productive HIV-1 replication in cardiomyocytes. We sought to investigate the effect of the HIV-1 auxiliary protein, Nef, which is suspected of extracellular release by infected CD4+ T cells on protein quality control and autophagy in cardiomyocytes...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818264/the-potential-management-of-oral-candidiasis-using-anti-biofilm-therapies
#14
Warren Chanda, Thomson P Joseph, Wendong Wang, Arshad A Padhiar, Mintao Zhong
Candida albicans is a minor component of the oral microbiota and an opportunistic pathogen that takes advantage of the immunocompromised host and causes oral mucositis and oral candidiasis. This organism is able to undergo phenotypic modification from a yeast to hyphae growth phase, one of the key arsenals for immune cell evasion, tissue invasion and biofilm formation. The latter property coupled with overgrowth and immune compromising factors such as HIV/AIDS, cancer treatments, organ transplantation, diabetes, corticosteroid use, dentures, and broad-spectrum antibiotic use have modified the fungus from a normal component of the microflora to a foe of an oral cavity and resulting in reduced sensitivity towards commonly utilised antifungal agents...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28818113/respiratory-syncytial-virus-rsv-entry-is-inhibited-by-serine-protease-inhibitor-aebsf-when-present-during-an-early-stage-of-infection
#15
Winke Van der Gucht, Annelies Leemans, Marjorie De Schryver, Annick Heykers, Guy Caljon, Louis Maes, Paul Cos, Peter L Delputte
BACKGROUND: Host proteases have been shown to play important roles in many viral activities such as entry, uncoating, viral protein production and disease induction. Therefore, these cellular proteases are putative targets for the development of antivirals that inhibit their activity. Host proteases have been described to play essential roles in Ebola, HCV, HIV and influenza, such that specific protease inhibitors are able to reduce infection. RSV utilizes a host protease in its replication cycle but its potential as antiviral target is unknown...
August 17, 2017: Virology Journal
https://www.readbyqxmd.com/read/28817720/targeting-of-cdk9-with-indirubin-3-monoxime-safely-and-durably-reduces-hiv-viremia-in-chronically-infected-humanized-mice
#16
Sandra Medina-Moreno, Thomas C Dowling, Juan C Zapata, Nhut M Le, Edward Sausville, Joseph Bryant, Robert R Redfield, Alonso Heredia
Successful propagation of HIV in the human host requires entry into a permissive cell, reverse transcription of viral RNA, integration into the human genome, transcription of the integrated provirus, and assembly/release of new virus particles. Currently, there are antiretrovirals against each of these viral steps, except for provirus transcription. An inhibitor of HIV transcription could both increase potency of treatment and suppress drug-resistant strains. Cellular cyclin-dependent kinase 9 (CDK9) serves as a cofactor for the HIV Tat protein and is required for effective transcription of the provirus...
2017: PloS One
https://www.readbyqxmd.com/read/28817675/deaths-during-tuberculosis-treatment-among-paediatric-patients-in-a-large-tertiary-hospital-in-nigeria
#17
Aishatu L Adamu, Muktar H Aliyu, Najiba Aliyu Galadanci, Baba Maiyaki Musa, Muktar A Gadanya, Auwalu U Gajida, Taiwo G Amole, Imam W Bello, Safiya Gambo, Ibrahim Abubakar
BACKGROUND: Despite availability of effective cure, tuberculosis (TB) remains a leading cause of death in children. In many high-burden countries, childhood TB is underdiagnosed and underreported, and care is often accessed too late, resulting in adverse treatment outcomes. In this study, we examined the time to death and its associated factors among a cohort of children that commenced TB treatment in a large treatment centre in northern Nigeria. METHODS: This is a retrospective cohort study of children that started TB treatment between 2010 and 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28817570/increased-hepatotoxicity-among-hiv-infected-adults-co-infected-with-schistosoma-mansoni-in-tanzania-a-cross-sectional-study
#18
Amon I Marti, Soledad Colombe, Peter J Masikini, Samuel E Kalluvya, Luke R Smart, Bahati M Wajanga, Hyasinta Jaka, Robert N Peck, Jennifer A Downs
INTRODUCTION: Little is known about hepatotoxicity in patients with schistosome and HIV co-infections. Several studies have reported increased liver enzymes and bilirubin levels associated with schistosome infection. We investigated whether HIV-infected adults on antiretroviral therapy who had S. mansoni co-infection had a higher prevalence of hepatotoxicity than those without. METHODOLOGY/PRINCIPAL FINDINGS: We determined the presence and grade of hepatotoxicity among 305 HIV-infected outpatients who had been on medium-term (3-6 months) and long-term (>36 months) antiretroviral therapy in a region of northwest Tanzania where S...
August 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28817445/the-safety-of-pembrolizumab-in-metastatic-melanoma-and-rheumatoid-arthritis
#19
Akshjot Puri, Jade Homsi
Immunotherapy has been in use for the treatment of melanoma since a very long time, but only recently have the cytotoxic T-lymphocyte antigen-4 (CTLA-4) antibody ipilimumab and programmed cell death-1 inhibitors such as nivolimumab and pembrolizumab been shown to induce marked improvements in survival in patients with metastatic melanoma. An important concern arises in terms of the safety of the use of these agents in patients with autoimmune diseases, solid organ transplant recipients on immunosuppression, patients with a history of previous hepatitis B or C, and patients with HIV infections as these patients were excluded from pivotal immunotherapy studies...
August 16, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28816644/cyp2b6-haplotype-predicts-efavirenz-plasma-concentration-in-black-south-african-hiv-1-infected-children-a-longitudinal-pediatric-pharmacogenomic-study
#20
Riaan Reay, Collet Dandara, Michelle Viljoen, Malie Rheeders
South Africa has the highest burden of the human immunodeficiency virus (HIV) infection globally. Efavirenz (EFV), a frequently used drug against HIV infection, displays a relationship between drug concentration and pharmacodynamics effects clinically. However, haplotype-based genetic variation in drug metabolism in a pediatric sample has been little considered in a longitudinal long-term context. CYP2B6 plays a key role in variation of EFV plasma concentration through altered drug metabolism. We report here on a prospective clinical pharmacogenomics/pharmacokinetic study of Bantu-speaking children, importantly, over a period of 24 months post-initiation of EFV-based treatment in South Africa...
August 2017: Omics: a Journal of Integrative Biology
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