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https://www.readbyqxmd.com/read/29334553/post-treatment-controllers-after-treatment-interruption-in-chronically-hiv-infected-patients
#1
Franco Maggiolo, Elisa Di Filippo, Laura Comi, Annapaola Callegaro
OBJECTIVE: Control HIV replication requires continuous combined antiretroviral therapy (cART) as discontinuation of cART results in a rapid viral rebound. However, a few individuals exist who took cART for several years and did not show the expected viral rebound after treatment cessation. Most post-treatment controllers (PTCs) are early treated individuals. We report three cases who started cART during chronic infection. DESIGN: Patients were treated and monitored according to Italian guidelines...
January 13, 2018: AIDS
https://www.readbyqxmd.com/read/29327734/clinical-study-of-extrapulmonary-head-and-neck-tuberculosis-in-an-urban-setting
#2
S Monga, J N Malik, S Jan, S Bahadur, S Jetley, H Kaur
Tuberculosis (TB) of the head and neck region is quite common in endemic countries, but is still misdiagnosed due to its varied presentation and different sites of involvement. The aims of the present study were to present the diversities of presentation of head and neck tuberculosis with the diagnostic predicaments faced during evaluation and to assess treatment response to anti-tubercular treatment (ATT). We analysed 48 patients with head and neck tuberculosis who presented to the Department of Otorhinolaryngology in our tertiary care urban hospital over a period of two years from 2013 to 2015 and recorded their data, which included presenting complaints, local and systemic examination findings, investigation results and treatment outcomes...
December 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/29324227/getting-the-kill-into-shock-and-kill-strategies-to-eliminate-latent-hiv
#3
REVIEW
Youry Kim, Jenny L Anderson, Sharon R Lewin
Despite the success of antiretroviral therapy (ART), there is currently no HIV cure and treatment is life long. HIV persists during ART due to long-lived and proliferating latently infected CD4+ T cells. One strategy to eliminate latency is to activate virus production using latency reversing agents (LRAs) with the goal of triggering cell death through virus-induced cytolysis or immune-mediated clearance. However, multiple studies have demonstrated that activation of viral transcription alone is insufficient to induce cell death and some LRAs may counteract cell death by promoting cell survival...
January 10, 2018: Cell Host & Microbe
https://www.readbyqxmd.com/read/29321310/therapeutic-efficacy-of-vectored-pgt121-gene-delivery-in-hiv-1-infected-humanized-mice
#4
Alexander Badamchi-Zadeh, Lawrence J Tartaglia, Peter Abbink, Christine A Bricault, Po-Ting Liu, Michael Boyd, Marinela Kirilova, Noe B Mercado, Ovini S Nanayakkara, Vladimir D Vrbanac, Andrew M Tager, Rafael A Larocca, Michael S Seaman, Dan H Barouch
Broadly neutralizing antibodies (bNAbs) are being explored for HIV-1 prevention and cure strategies. However, administration of purified bNAbs poses challenges in resource poor settings, where the HIV-1 disease burden is greatest. In vivo vector-based production of bNAbs represents an alternative strategy. We investigated adenovirus serotype 5 (Ad5) and adeno-associated virus serotype 1 (AAV1) vectors to deliver the HIV-1 specific bNAb PGT121 in wildtype and immunocompromised C57Bl/6 mice as well as in HIV-1-infected bone marrow-liver-thymus (BLT) humanized mice...
January 10, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29321219/what-can-the-lived-experience-of-participating-in-risky-hiv-cure-related-studies-establish
#5
Nir Eyal
This response to Gail Henderson et al argues that they were right that interviewees' appraisals of cure study participation should inform (future) protocol review decisions, but wrong to take these appraisals at face value.
January 10, 2018: Journal of Medical Ethics
https://www.readbyqxmd.com/read/29320464/sti-knowledge-in-berlin-adolescents
#6
Frederik Tilmann von Rosen, Antonella Juline von Rosen, Falk Müller-Riemenschneider, Inken Damberg, Peter Tinnemann
Sexually transmitted infections (STIs) pose a significant threat to individual and public health. They disproportionately affect adolescents and young adults. In a cross-sectional study, we assessed self-rated and factual STI knowledge in a sample of 9th graders in 13 secondary schools in Berlin, Germany. Differences by age, gender, migrant background, and school type were quantified using bivariate and multivariable analyses. A total of 1177 students in 61 classes participated. The mean age was 14.6 (SD = 0...
January 10, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29318993/a-case-of-severe-plasmodium-falciparum-malaria-co-infected-with-hiv-improved-with-exchange-transfusion
#7
Ayşe Sağmak Tartar, Ayhan Akbulut, Ömür Gökmen Sevindik, Hatice Handan Akbulut, Kutbeddin Demirdağ
In our country, within years, despite a dramatic drop in the number of patients with malaria, a dramatic increase in the number of patients with import malaria is noteworthy. A 32-year-old male patient presented with fever, shivering, malaise, and loss of appetite. He had travelled to West Africa. Laboratory findings were as follows: hemoglobin: 8.8 g/dL and anti-HIV: positive. Microscopic examinations of thin blood smears and thick blood preparations revealed widespread trophozoites. The presence of double-dotted ring forms and banana-shaped gametocytes resulted in Plasmodium falciparum malaria being diagnosed...
December 2017: Türkiye Parazitolojii Dergisi
https://www.readbyqxmd.com/read/29316956/next-generation-in-situ-hybridization-approaches-to-define-and-quantify-hiv-and-siv-reservoirs-in-tissue-microenvironments
#8
REVIEW
Claire Deleage, Chi N Chan, Kathleen Busman-Sahay, Jacob D Estes
The development of increasingly safe and effective antiretroviral treatments for human immunodeficiency virus (HIV) over the past several decades has led to vastly improved patient survival when treatment is available and affordable, an outcome that relies on uninterrupted adherence to combination antiretroviral therapy for life. Looking to the future, the discovery of an elusive 'cure' for HIV will necessitate highly sensitive methods for detecting, understanding, and eliminating viral reservoirs. Next-generation, in situ hybridization (ISH) approaches offer unique and complementary insights into viral reservoirs within their native tissue environments with a high degree of specificity and sensitivity...
January 9, 2018: Retrovirology
https://www.readbyqxmd.com/read/29311326/fitness-landscape-of-the-human-immunodeficiency-virus-envelope-protein-that-is-targeted-by-antibodies
#9
Raymond H Y Louie, Kevin J Kaczorowski, John P Barton, Arup K Chakraborty, Matthew R McKay
HIV is a highly mutable virus, and over 30 years after its discovery, a vaccine or cure is still not available. The isolation of broadly neutralizing antibodies (bnAbs) from HIV-infected patients has led to renewed hope for a prophylactic vaccine capable of combating the scourge of HIV. A major challenge is the design of immunogens and vaccination protocols that can elicit bnAbs that target regions of the virus's spike proteins where the likelihood of mutational escape is low due to the high fitness cost of mutations...
January 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29306566/bispecific-chimeric-antigen-receptors-targeting-the-cd4-binding-site-and-high-mannose-glycans-of-gp120-optimized-for-anti-human-immunodeficiency-virus-potency-and-breadth-with-minimal-immunogenicity
#10
Mustafa H Ghanem, Sara Bolivar-Wagers, Barna Dey, Agnes Hajduczki, Diego A Vargas-Inchaustegui, David T Danielson, Virgilio Bundoc, Li Liu, Edward A Berger
BACKGROUND AIMS: Chimeric antigen receptors (CARs) offer great potential toward a functional cure of human immunodeficiency virus (HIV) infection. To achieve the necessary long-term virus suppression, we believe that CARs must be designed for optimal potency and anti-HIV specificity, and also for minimal probability of virus escape and CAR immunogenicity. CARs containing antibody-based motifs are problematic in the latter regard due to epitope mutation and anti-idiotypic immune responses against the variable regions...
January 3, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29305405/real-world-treatment-of-hepatitis-c-with-second-generation-direct-acting-antivirals-initial-results-from-a-multicentre-canadian-retrospective-cohort-of-diverse-patients
#11
Alex I Aspinall, Abdel A Shaheen, Golasa S Kochaksaraei, Breean Haslam, Samuel S Lee, Gisela Macphail, Jeff Kapler, Oscar E Larios, Kelly W Burak, Mark G Swain, Meredith A Borman, Carla S Coffin
BACKGROUND: High hepatitis C cure rates have been observed in registration trials with second-generation direct-acting antivirals. Real-world data also indicate high sustained viral response (SVR) rates. Our objective was to determine real-world SVR rates for patients infected with hepatitis C virus (HCV) who were treated with second-generation direct-acting antivirals in the first 18 months of their availability in Canada. METHODS: Four centres in Calgary contributed their treatment data for a diverse patient population including those who had or had not undergone liver transplantation, those coinfected with HIV and vulnerable populations...
January 5, 2018: CMAJ Open
https://www.readbyqxmd.com/read/29298886/class-1-selective-histone-deacetylase-inhibitors-enhance-hiv-latency-reversal-while-preserving-the-activity-of-hdac-isoforms-necessary-for-maximal-hiv-gene-expression
#12
Thomas D Zaikos, Mark M Painter, Nadia T Sebastian, Valeri H Terry, Kathleen L Collins
Combinations of drugs that affect distinct mechanisms of HIV latency aim to induce robust latency reversal leading to cytopathicity and elimination of the persistent HIV reservoir. Thus far, attempts have focused on combinations of PKC agonists and pan-histone deacetylase inhibitors (HDIs) despite the knowledge that HIV gene expression is regulated by class 1 histone deacetylases. We hypothesized that class 1-selective HDIs would promote more robust HIV latency reversal in combination with a PKC agonist than pan-HDIs because they preserve the activity of pro-viral factors regulated by non-class 1 histone deacetylases...
January 3, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29297230/post-vaccination-c-reactive-protein-crp-and-c5-gp41732-744-antibody-level-fold-changes-over-baseline-are-independent-predictors-of-therapeutic-hiv-vaccine-effect-in-a-phase-2-clinical-study-of-vacc-4x
#13
Yunda Huang, Lily Zhang, Darren Jolliffe, Brittany Sanchez, Grete Stjernholm, Øyvind Jelmert, Mats Ökvist, Maja A Sommerfelt
Therapeutic vaccination has the potential to contribute to functional HIV cure strategies. However, to show functional HIV cure, study participants must be taken off combination antiretroviral therapy (cART). The availability of suitable biomarkers that can predict viral load (VL) or CD4 count outcomes following therapeutic HIV vaccination would reduce the risks associated with cART interruption in such studies. This report sought to determine baseline and post-vaccination biomarker predictors of vaccine effect on VL and CD4 counts following cART interruption in a double-blind, randomized phase 2 study of the peptide-based therapeutic HIV vaccine, Vacc-4x (n=93) vs...
January 3, 2018: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29290675/despite-gains-the-war-on-hiv-is-far-from-over-with-no-cure-in-sight-experts-urge-early-diagnosis-and-prompt-treatment-with-better-adherence
#14
Susan L Worley
Although a significant increase in life expectancy for people with human immunodeficiency virus was reported last spring, experts in the U.S. caution that the results are not a cause for complacency. Efforts to develop a vaccine and a cure remain essential, as do efforts to develop interventions that may improve adherence.
January 2018: P & T: a Peer-reviewed Journal for Formulary Management
https://www.readbyqxmd.com/read/29287028/hbv-or-hcv-coinfection-in-hiv-1-infected-pregnant-women-in-france-prevalence-and-pregnancy-outcomes
#15
Valérie Benhammou, Roland Tubiana, Sophie Matheron, Pierre Sellier, Laurent Mandelbrot, Jérôme LE Chenadec, Emmanuelle Marel, Babak Khoshnood, Josiane Warszawski
BACKGROUND: Chronic HBV or HCV infection is frequent in HIV- infected persons but their impact on pregnant HIV-infected women is understudied. We explored whether these coinfections are associated with adverse pregnancy outcomes and lower response to antiretroviral therapy (ART). METHODS: Pregnancies in HIV-1-infected women included in the ANRS French Perinatal Cohort between 2005 and 2013 were analyzed if HBV and HCV infection statuses were available. RESULTS: Among 4236 women, the prevalence of HBV (HBs Ag+) and HCV (RNA+) were 6...
December 27, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29280961/rna-interference-therapies-for-an-hiv-1-functional-cure
#16
REVIEW
Robert J Scarborough, Anne Gatignol
HIV-1 drug therapies can prevent disease progression but cannot eliminate HIV-1 viruses from an infected individual. While there is hope that elimination of HIV-1 can be achieved, several approaches to reach a functional cure (control of HIV-1 replication in the absence of drug therapy) are also under investigation. One of these approaches is the transplant of HIV-1 resistant cells expressing anti-HIV-1 RNAs, proteins or peptides. Small RNAs that use RNA interference pathways to target HIV-1 replication have emerged as competitive candidates for cell transplant therapy and have been included in all gene combinations that have so far entered clinical trials...
December 27, 2017: Viruses
https://www.readbyqxmd.com/read/29275968/tuberculosis-social-determinants-and-co-morbidities-including-hiv
#17
R Duarte, K Lönnroth, C Carvalho, F Lima, A C C Carvalho, M Muñoz-Torrico, R Centis
The risk of exposure, progression to active tuberculosis (TB) and then to cure is a process affected by several risk factors. Along with well known risk factors such as human immunodeficiency virus (HIV), use of immunosuppressive drugs and being of young age, emerging risk factors such socio-economic and behavioral aspects play a significant role in increasing the susceptibility to infection, and unsuccessful treatment outcomes. This paper summarizes the effects of these socio-economic determinants and co-morbidities (including HIV) on TB infection and disease...
December 21, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/29273355/what-is-the-most-important-for-elite-control-genetic-background-of-patient-genetic-background-of-partner-both-or-neither-description-of-complete-natural-history-within-a-couple-of-msm
#18
M Bendenoun, A Samri, V Avettand-Fènoël, S Cardinaud, B Descours, G Carcelain, M-C Mazeron, J-F Bergmann, A Urrutia, A Moris, C Rouzioux, F Simon, P Andre, M Pocard, X Dray, T Mourez, V Vieillard, B Autran, F Barin, P Sellier
BACKGROUND: We describe a homosexual man who strongly controlled HIV-1 for ten years despite lack of protective genetic background. METHODS: HIV-1 DNA was measured in blood and other tissues. Cell susceptibility was evaluated with various strains. HIV-1-specific (CD4 and CD8 activation markers and immune check points) and NK cells responses were assessed; KIRs haplotypes and HLA alleles were determined. FINDINGS: Two HIV-1 RNA copies/mL of plasma were detected in 2009, using an ultra-sensitive assay...
December 7, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29259605/role-of-monocyte-macrophages-during-hiv-siv-infection-in-adult-and-pediatric-acquired-immune-deficiency-syndrome
#19
REVIEW
Kristen M Merino, Carolina Allers, Elizabeth S Didier, Marcelo J Kuroda
Monocytes/macrophages are a diverse group of cells that act as first responders in innate immunity and then as mediators for adaptive immunity to help clear infections. In performing these functions, however, the macrophage inflammatory responses can also contribute to pathogenesis. Various monocyte and tissue macrophage subsets have been associated with inflammatory disorders and tissue pathogeneses such as occur during HIV infection. Non-human primate research of simian immunodeficiency virus (SIV) has been invaluable in better understanding the pathogenesis of HIV infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29250325/modern-biotechnology-based-therapeutic-approaches-against-hiv-infection
#20
Muhammad Imran, Yasir Waheed, Ayesha Ghazal, Sajjad Ullah, Sher Zaman Safi, Muhsin Jamal, Muhammad Ali, Muhammad Atif, Muhammad Imran, Farman Ullah
The causative agent of acquired immune deficiency syndrome (AIDS) is human immunodeficiency virus (HIV). Since its discovery before 30 years, a number of drugs known as highly active antiretroviral therapy have been developed to suppress the life cycle of the virus at different stages. With the current therapeutic approaches, ending AIDS means providing treatment to 35 million individuals living with HIV for the rest of their lives or until a cure is developed. Additionally, therapy is associated with various other challenges such as potential of drug resistance, toxicity and presence of latent viral reservoir...
December 2017: Biomedical Reports
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