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https://www.readbyqxmd.com/read/28525878/vaccine-development-for-respiratory-syncytial-virus
#1
REVIEW
Barney S Graham
Respiratory syncytial virus (RSV) is an important and ubiquitous respiratory pathogen for which no vaccine is available notwithstanding more than 50 years of effort. It causes the most severe disease at the extremes of age and in settings of immunodeficiency. Although RSV is susceptible to neutralizing antibody, it has evolved multiple mechanisms of immune evasion allowing it to repeatedly infect people despite relatively little genetic diversity. Recent breakthroughs in determining the structure and antigenic content of the fusion (F) glycoprotein in its metastable untriggered prefusion form (pre-F) and the stable rearranged postfusion form (post-F) have yielded vaccine strategies that can induce potent neutralizing antibody responses and effectively boost pre-existing neutralizing activity...
May 16, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28525198/-multiple-and-recurrent-cutaneous-abscesses-diagnosis-approach
#2
REVIEW
N Sène, V Del Marmol
INTRODUCTION: The cutaneous abscess commonly occurs in the medical practice, its management being well known. However, atypical cases - multiple occurrence, recurrence and/or resistance to classical treatment can be very challenging for the physician. These cases can be addressed for consultation in several medical specialties depending the age of the patient and the site of the lesions. The systematization of the diagnostic approach would have a great impact for the clinical practice...
2017: Revue Médicale de Bruxelles
https://www.readbyqxmd.com/read/28523402/advances-in-the-care-of-primary-immunodeficiencies-pids-from-birth-to-adulthood
#3
Nizar Mahlaoui, Klaus Warnatz, Alison Jones, Sarita Workman, Andrew Cant
Primary immunodeficiencies (PIDs) are a widely heterogeneous group of inherited defects of the immune system consisting of many clinical phenotypes with at least 300 underlying genetic deficits currently known. Patients with PIDs can present with, or develop during the course of their life, a susceptibility to recurrent and chronic infection along with autoimmune, allergic, inflammatory, and/or proliferative disorders, all potentially leading to end-organ damage. In recent years, a combination of basic and clinical research has greatly improved understanding of the underlying immunological and genetic defects in PIDs, leading to improved diagnosis, classification, and treatment approaches...
May 18, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28520967/in-vivo-models-of-human-immunodeficiency-virus-persistence-and-cure-strategies
#4
Christopher C Nixon, Maud Mavigner, Guido Silvestri, J Victor Garcia
Current HIV therapy is not curative regardless of how soon after infection it is initiated or how long it is administered, and therapy interruption almost invariably results in robust viral rebound. Human immunodeficiency virus persistence is therefore the major obstacle to a cure for AIDS. The testing and implementation of novel yet unproven approaches to HIV eradication that could compromise the health status of HIV-infected individuals might not be ethically warranted. Therefore, adequate in vitro and in vivo evidence of efficacy is needed to facilitate the clinical implementation of promising strategies for an HIV cure...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28515942/a-tandem-cd19-cd20-car-lentiviral-vector-drives-on-target-and-off-target-antigen-modulation-in-leukemia-cell-lines
#5
Dina Schneider, Ying Xiong, Darong Wu, Volker Nӧlle, Sarah Schmitz, Waleed Haso, Andrew Kaiser, Boro Dropulic, Rimas J Orentas
BACKGROUND: Clinical success with chimeric antigen receptor (CAR)- based immunotherapy for leukemia has been accompanied by the associated finding that antigen-escape variants of the disease are responsible for relapse. To target hematologic malignancies with a chimeric antigen receptor (CAR) that targets two antigens with a single vector, and thus potentially lessen the chance of leukemic escape mutations, a tandem-CAR approach was investigated. METHODS: Antigen binding domains from the FMC63 (anti-CD19) and Leu16 (anti-CD20) antibodies were linked in differing configurations to transmembrane and T cell signaling domains to create tandem-CARs...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28515303/spontaneous-and-vaccine-induced-clearance-of-mus-musculus-papillomavirus-type-1-mmupv1-muspv1-infection
#6
Rosie T Jiang, Joshua W Wang, Shiwen Peng, Tsui-Chin Huang, Chenguang Wang, Fabiana Cannella, Yung-Nien Chang, Raphael P Viscidi, Simon R A Best, Chien-Fu Hung, Richard B S Roden
Mus musculus Papillomavirus1 (MmuPV1/MusPV1) induces persistent papillomas in immunodeficient mice but not common laboratory strains. To facilitate study of immune control, we sought an outbred and immune competent laboratory mouse strain in which persistent papillomas could be established. We found that challenge of SKH1 mice (Crl:SKH1-Hrhr) by scarification on their tail with MmuPV1 resulted in three clinical outcomes: 1) persistent (>2 months) papillomas (∼20%), 2) transient papillomas that spontaneously regress typically within 2 months (∼15%), 3) no visible papillomas and viral clearance (∼65%)...
May 17, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28513891/haematopoietic-stem-cell-transplantation-for-severe-combined-immunodeficiency-long-term-health-outcomes-and-patient-perspectives
#7
Adrian Ys Lee, Katie Frith, Lilian Schneider, John B Ziegler
AIM: To examine the long-term follow-up and health outcomes of patients who have undergone haematopoietic stem cell transplant (HSCT) for severe combined immunodeficiency (SCID). METHODS: Through a structured questionnaire, we examined follow-up arrangements and long-term health outcomes in 22 children who have had a successful HSCT for SCID during the period of 1984-2012 at the Sydney Children's Hospital, Sydney, Australia. RESULTS: Most children considered themselves healthy and 'cured' from SCID...
May 17, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28509395/da-epoch-r-for-post-transplant-lymphoproliferative-disorders-ptld
#8
Christin B DeStefano, Vera Malkovska, Hind Rafei, Aarthi Shenoy, Kelly Fitzpatrick, Anita Aggarwal, Joseph P Catlett
Post-transplant lymphoproliferative disorders (PTLD) are a heterogeneous and potentially fatal group of neoplasms arising in an immunodeficient environment in the background of viral antigenic stimulation. PTLD is rare, with an incidence in solid organ transplant recipients typically less than 20% [1]. For aggressive, monomorphic cases, current guidelines recommend reduced immunosuppression in addition to chemoimmunotherapy, which generally consists of R-CHOP [1]. Nevertheless, prognosis is poor with 5-year overall survival (OS) rates of only 40-60% [1]...
May 16, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28508402/risk-factors-for-human-immunodeficiency-virus-among-blood-donors-in-cameroon-evidence-for-the-design-of-an-africa-specific-donor-history-questionnaire
#9
Claude T Tagny, Georges Nguefack-Tsague, Diderot Fopa, Celestin Ashu, Estel Tante, Pauline Ngo Balogog, Olivier Donfack, Dora Mbanya, Syria Laperche, Edward Murphy
BACKGROUND: In sub-Saharan Africa improving the deferral of at-risk blood donors would be a cost-effective approach to reducing transfusion-transmitted human immunodeficiency virus (HIV) infections. We performed a pilot case-control study to identify the risk factors for HIV infection and to develop an adapted donor history questionnaire (DHQ) for sub-Saharan Africa. STUDY DESIGN AND METHODS: We recruited 137 HIV-positive donors (cases) and 256 HIV-negative donors (controls) and gathered risk factor data using audio computer-assisted self-interview...
May 15, 2017: Transfusion
https://www.readbyqxmd.com/read/28507961/total-hip-arthroplasty-indicated-for-a-tuberculous-coxitis-complicating-a-controlled-acquired-imunodefficiency-syndrom-condition-a-preliminary-report-concerning-a-case
#10
Handy Eone Daniel, Jean Emile Bayiha, Théophyle Chunteng Nana, Olivier Kennedy Muluem, Jean Bahebeck
INTRODUCTION: Total hip arthroplasty (THA) remains controversial in active tuberculosis (TB) infection because of the risks of septic loosening and reactivation of the infection. We present a rare case of THA in a patient positive for the human immunodeficiency virus (HIV) with active tuberculous coxitis. The aim of this work is to share our experience and our preliminary results. CASE REPORT: The patient was a 53-year-old Black African woman, positive for the HIV, who was operated for implantation of a THA via the Hardinge approach indicated for a severe painful hip with restriction of joint movement and limp...
November 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28503929/rare-control-of-sivmac239-infection-in-a-vaccinated-rhesus-macaque
#11
Mauricio de Aguiar Martins, Damien C Tully, Young C Shin, Lucas Gonzalez-Nieto, Kim Weisgrau, David J Bean, Rujuta Gadgil, Martin J Gutman, Aline Domingues, Helen Skye Maxwell, Diogo Magnani, Michael Ricciardi, Nuria Pedreño-Lopez, Varian Bailey, Michael Cruz, Noemia S Lima, Myrna Bonaldo, John Altman, Eva Rakasz, Saverio Capuano, Keith Reimann, Michael Piatak, Jeffrey Lifson, Ronald Desrosiers, Todd Allen, David Watkins
Effector memory T-cell (T<sub>EM</sub>) responses display potent antiviral properties and have been linked to stringent control of simian immunodeficiency virus (SIV) replication. Since recurrent antigen stimulation drives the differentiation of CD8<sup>+</sup> T-cells toward the T<sub>EM</sub> phenotype, here we incorporated a persistent herpesviral vector into a heterologous prime/boost/boost vaccine approach in order to maximize the induction of T<sub>EM</sub> responses...
May 13, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28502523/human-immunodeficiency-virus-diagnostic-approach
#12
REVIEW
Jeannette Guarner
First descriptions of acquired immunodeficiency syndrome appeared in 1981. Four years later the causative agent was cultured which lead to development and production of tests that helped healthcare providers to identify persons living with HIV. Currently, diagnosis of HIV is performed with fourth generation immunoassays (those that detect p24 antigen together with IgM and IgG antibodies to HIV-1 and -2) which if positive need to be followed by an assay that can differentiate between HIV-1 and HIV-2 viruses...
April 8, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28481368/regulation-of-mir-483-3p-by-the-o-linked-n-acetylglucosamine-transferase-links-chemosensitivity-to-glucose-metabolism-in-liver-cancer-cells
#13
F Pepe, S Pagotto, S Soliman, C Rossi, P Lanuti, C Braconi, R Mariani-Costantini, R Visone, A Veronese
The miR-483-3p is upregulated in several tumors, including liver tumors, where it inhibits TP53-dependent apoptosis by targeting the pro-apoptotic gene BBC3/PUMA. The transcriptional regulation of the miR-483-3p could be driven by the β-catenin/USF1 complex, independently from its host gene IGF2, and we previously demonstrated that in HepG2 hepatoblastoma cells carrying wild-type TP53 the upregulation of the miR-483-3p overcomes the antitumoral effects of the tumor-suppressor miR-145-5p by a mechanism involving cellular glucose availability...
May 8, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28480278/should-human-immunodeficiency-virus-specialty-clinics-treat-patients-with-hypertension-or-refer-to-primary-care-an-analysis-of-treatment-outcomes
#14
A Ben Appenheimer, Barbara Bokhour, D Keith McInnes, Kelly K Richardson, Andrew L Thurman, Brice F Beck, Mary Vaughan-Sarrazin, Steven M Asch, Amanda M Midboe, Thom Taylor, Kelly Dvorin, Allen L Gifford, Michael E Ohl
BACKGROUND: Care for people with human immunodeficiency virus (HIV) increasingly focuses on comorbidities, including hypertension. Evidence indicates that antiretroviral therapy and opportunistic infections are best managed by providers experienced in HIV medicine, but it is unclear how to structure comorbidity care. Approaches include providing comorbidity care in HIV clinics ("consolidated care") or combining HIV care with comorbidity management in primary care clinics ("shared care")...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28480234/estimating-the-time-to-diagnosis-and-the-chance-of-spontaneous-clearance-during-acute-hepatitis-c-in-human-immunodeficiency-virus-infected-individuals
#15
Romain Ragonnet, Sylvie Deuffic-Burban, Christoph Boesecke, Marguerite Guiguet, Karine Lacombe, Jeremie Guedj, Jürgen K Rockstroh, Yazdan Yazdanpanah
BACKGROUND: Hepatitis C virus (HCV) infection is often asymptomatic, and the date of infection is almost impossible to determine. Furthermore, spontaneous clearance (SC) may occur, but little is known about its time of occurrence. METHODS: Data on human immunodeficiency virus (HIV)-HCV coinfected individuals were used to inform a stochastic simulation model of HCV viral load kinetics, alanine aminotransferase (ALT), and HCV antibodies during acute hepatitis C. The dates of diagnosis and potential SC were estimated through a Bayesian approach...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28479164/recommendations-for-screening-and-management-of-late-effects-in-scid-patients-after-allogenic-hematopoietic-cell-transplantation-hct-a-consensus-statement-from-the-second-pediatric-blood-and-marrow-transplant-consortium-international-conference-on-late-effects
#16
REVIEW
J Heimall, R H Buckley, J Puck, T A Fleisher, A R Gennery, E Haddad, B Neven, M Slatter, Roderick S, K S Baker, A C Dietz, C Duncan, L M Griffith, L Notarangelo, M A Pulsipher, M J Cowan
Severe Combined Immunodeficiency (SCID) is effectively treated with HCT with overall survival approaching 90% in contemporary reports. However, survivors are at risk for development of late complications due to the variable durability of high quality immune function, underlying genotype of SCID, comorbidities due to infections in the pre- and post- transplant period and use of conditioning pre-transplant. An international group of transplant experts was convened in 2016 to review the current knowledge of late effects seen in SCID patients following HCT, and develop recommendations for screening and monitoring for late effects...
May 4, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28477117/studies-of-atm-kinase-activity-using-engineered-atm-sensitive-to-atp-analogues-atm-as
#17
Masato Enari, Yuko Matsushima-Hibiya, Makoto Miyazaki, Ryo Otomo
Ataxia-telangiectasia mutated (ATM) protein is a member of the phosphatidylinositol 3-phosphate kinase (PI3-K)-related protein kinase (PIKK) family and is implicated in the initiation of signaling pathways following DNA double strand breaks (DSBs) elicited by exposure to ionizing irradiation (IR) or radiomimetic compounds. Loss of function of the ATM gene product results in the human genetic disorder ataxia-telangiectasia (A-T) characterized by neurodegeneration, immunodeficiency, genomic instability, and cancer predisposition...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28469517/a-little-help-from-the-follicles-understanding-the-germinal-center-response-to-human-immunodeficiency-virus-1-infection-and-prophylactic-vaccines
#18
REVIEW
Ebony N Gary, Michele A Kutzler
Human immunodeficiency virus 1 (HIV-1) is the causative agent of AIDS. There are currently more than 35 million people living with HIV infection worldwide, and more than 2 million new infections occur each year. The global pandemic caused by HIV-1 is the subject of numerous research projects, with the development of a prophylactic vaccine and a therapeutic cure being the ultimate goals. The classic paradigms of vaccinology have proven incapable of producing a viable vaccine due to the complexity of the virus' replication cycle, its genetic diversity, and a lack of understanding of the immune correlates of protection...
2017: Clinical Medicine Insights. Pathology
https://www.readbyqxmd.com/read/28463775/identifying-dynamic-pathway-interactions-based-on-clinical-information
#19
Shinuk Kim
In this paper, we introduce approaches for inferring dynamic pathway interactions by converting static datasets into dynamic datasets using patients' clinical information. One approach uses survival time-based dynamic datasets, and the other uses grade- and stage-based dynamic datasets. Based on cancer grades and stages, we generated six dynamic levels and obtained two pairs of significant pathways out of twelve enriched pathways. One pair of the pathways included CELL ADHESION MOLECULES CAMS and SYSTEMIC LUPUS ERYTHEMATOSUS (correlation coefficient=1...
April 24, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28462542/clinical-profile-and-outcome-of-progressive-multifocal-leukoencephalopathy-in-hiv-infected-indian-patients
#20
Vipul Shah, Harsh Toshniwal, Manoj Shevkani
BACKGROUND AND OBJECTIVE: Progressive multifocal leukoencephalopathy (PML) is a fatal demyelinating disease of the Central nervous system (CNS) caused by the human polyoma virus JC (JCV). Human Immunodeficiency Virus (HIV) infection predisposes to PML. Very sparse data is available regarding the effect of Highly Active Anti Retroviral Therapy (HAART) on clinical outcome of PML in Indian settings. This study was carried out to look into clinical profile, survival and neurological outcome of HIV infected PML patients in HAART era...
March 2017: Journal of the Association of Physicians of India
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