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https://www.readbyqxmd.com/read/28432714/high-human-cytomegalovirus-dnaemia-early-post-transplantation-associates-with-irreversible-and-progressive-loss-of-renal-function
#1
Wouter T Lollinga, Lilli Rurenga-Gard, Willem van Doesum, Rik van Bergen, Arjan Diepstra, Judith M Vonk, Annelies Riezebos-Brilman, Hgm Niesters, Willem J van Son, Jacob van den Born, Jan-Stephan Sanders
BACKGROUND: Transplant recipients are prone to viral infections, which could affect renal transplantation outcome. Our aim was to assess the effects of early human cytomegalovirus (CMV) DNAemia on transplant renal function. METHODS: 264 (age 50.9±13.5; male 55%) Renal transplantation recipients undergoing preemptive anti-CMV therapy were retrospectively categorized based on early (<3 months post-Tx) CMV peak viral load (PVL); PVL≤536, PVL536-6310 or PVL>6310 International Units/ml (IU/ml)...
April 22, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28432463/malignant-transformation-of-sinonasal-inverted-papilloma-and-related-genetic-alterations-a-systematic-review
#2
REVIEW
M Re, F M Gioacchini, A Bajraktari, M Tomasetti, S Kaleci, C Rubini, A Bertini, G Magliulo, E Pasquini
Schneiderian papillomas are uncommon tumors which may develop within the nasal cavity and comprise three well-defined histological types: sinonasal inverted papilloma (SNIP), exophytic papilloma, and oncocytic papilloma. It is well known the rate of Schneiderian papilloma may also present a malignant degeneration and SNIP represents the most important subgroup in consideration of its frequency and malignant propensity. Although HPV infection is always considered the first event favoring the development of SNIP, however, it is not established as an eventual connection between viral actions and malignant transformation...
April 21, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28432378/advances-in-anti-viral-immune-defence-revealing-the-importance-of-the-ifn-jak-stat-pathway
#3
REVIEW
Nicola Raftery, Nigel J Stevenson
Interferon-alpha (IFN-α) is a potent anti-viral cytokine, critical to the host immune response against viruses. IFN-α is first produced upon viral detection by pathogen recognition receptors. Following its expression, IFN-α embarks upon a complex downstream signalling cascade called the JAK/STAT pathway. This signalling pathway results in the expression of hundreds of effector genes known as interferon stimulated genes (ISGs). These genes are the basis for an elaborate effector mechanism and ultimately, the clearance of viral infection...
April 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28432065/adoptive-t-cell-transfer-targets-viral-and-nonviral-tumor-antigens
#4
(no author information available yet)
Successful T-cell therapy targets nonviral tumor antigens in patients with HPV(+) cervical cancer.
April 21, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28430874/developmental-sall2-transcription-factor-a-new-player-in-cancer
#5
Viviana E Hermosilla, Matias I Hepp, David Escobar, Carlos Farlas, Elizabeth N Riffo, Ariel F Castro, Roxana Pincheira
SALL2, also known as Spalt-like transcription factor 2, is a member of the SALL family of transcription factors involved in development and conserved through evolution. Since its identification in 1996, findings indicate that SALL2 plays a role in neurogenesis, neuronal differentiation and eye development. Consistently, SALL2 deficiency associates with neural tube defects and coloboma, a congenital eye disease. Relevant to cancer, clinical studies indicate that SALL2 is deregulated in various cancers, and is a specific biomarker for Synovial Sarcoma...
April 18, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28429165/the-use-of-rapid-test-quikread-go%C3%A2-strep-a-in-bacterial-pharyngotonsillitis-diagnosing-and-therapeutic-decisions
#6
E Stefaniuk, K Bosacka, M Wanke-Rytt, W Hryniewicz
Group A Streptococci (GAS) are the main causative agents of bacterial pharyngitis, which require antibiotic therapy. Rapid diagnostic tests detecting GAS combined with Centor/McIsaac score enable accurate differential diagnosis (viral vs. bacterial) and prompt commencement of targeted treatment. The aim of this study was to assess the specificity, sensitivity, PPV and NPV of QuikRead go® Strep A (Orion Diagnostica Oy, Finland) recommended for the detection of GAS in pharyngeal swabs. Quick diagnostic test results were compared with physical examination findings, Centor/McIsaac score and results of reference testing (conventional microbial cultures)...
April 21, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28428210/proton-chemical-shift-imaging-study-of-the-combined-antiretroviral-therapy-impact-on-neurometabolic-parameters-in-chronic-hiv-infection
#7
J Boban, D Kozic, V Turkulov, D Lendak, M Bjelan, M Semnic, S Brkic
BACKGROUND AND PURPOSE: The introduction of combination antiretroviral therapy has failed to reduce the high prevalence of mild forms of HIV-associated neurocognitive disorders. The aim of this study was to test the effect of combined antiretroviral therapy on brain metabolite ratios in chronic HIV infection by using proton chemical shift imaging. MATERIALS AND METHODS: We performed 2D chemical shift imaging in 91 subjects (31 HIV+ patients with chronic infection on combination antiretroviral therapy, 19 combination antiretroviral therapy-na|fkve HIV+ subjects with chronic infection, and 41 healthy controls), covering frontal and parietal subcortical white and cingulate gyrus gray matter, analyzing ratios of NAA/Cr and Cho/Cr on long-TE and mIns/Cr on short-TE MR spectroscopy...
April 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28427875/easl-2017-clinical-practice-guidelines-on-the-management-of-hepatitis-b-virus-infection
#8
Pietro Lampertico, Kosh Agarwal, Thomas Berg, Maria Buti, Harry L A Janssen, George Papatheodoridis, Fabien Zoulim, Frank Tacke
Hepatitis B virus (HBV) infection remains a global public health problem with changing epidemiology due to several factors including vaccination policies and migration. This Clinical Practice Guideline presents updated recommendations for the optimal management of HBV infection. Chronic HBV infection can be classified into five phases: (I) HBeAg-positive chronic infection, (II) HBeAg-positive chronic hepatitis, (III) HBeAg-negative chronic infection, (IV) HBeAg-negative chronic hepatitis and (V) HBsAg-negative phase...
April 18, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28427421/cerebrospinal-fluid-csf-biomarkers-of-iron-status-are-associated-with-csf-viral-load-antiretroviral-therapy-and-demographic-factors-in-hiv-infected-adults
#9
Stephanie M Patton, Quan Wang, Todd Hulgan, James R Connor, Peilin Jia, Zhongming Zhao, Scott L Letendre, Ronald J Ellis, William S Bush, David C Samuels, Donald R Franklin, Harpreet Kaur, Jennifer Iudicello, Igor Grant, Asha R Kallianpur
BACKGROUND: HIV-associated neurocognitive disorder (HAND) remains common, despite antiretroviral therapy (ART). HIV dysregulates iron metabolism, but cerebrospinal fluid (CSF) levels of iron and iron-transport proteins in HIV-infected (HIV+) persons are largely unknown. The objectives of this study were to characterize CSF iron-related biomarkers in HIV+ adults and explore their relationships to known predictors of HAND. METHODS: We quantified total iron, transferrin and heavy-chain (H)-ferritin by immunoassay in CSF sampled by lumbar puncture in 403 HIV+ participants in a multi-center, observational study and evaluated biomarker associations with demographic and HIV-related correlates of HAND [e...
April 21, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28426952/plant-viruses-and-bacteriophages-for-delivery-in-medicine-and-biotechnology
#10
REVIEW
Anna E Czapar, Nicole F Steinmetz
There are a wide variety of synthetic and naturally occurring nanomaterials under development for nanoscale cargo-delivery applications. Viruses play a special role in these developments, because they can be regarded as naturally occurring nanomaterials evolved to package and deliver cargos. While any nanomaterial has its advantage and disadvantages, viral nanoparticles (VNPs), in particular the ones derived from plant viruses and bacteriophages, are attractive options for cargo-delivery as they are biocompatible, biodegradable, and non-infectious to mammals...
April 17, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28426825/levels-of-hiv-1-persistence-on-antiretroviral-therapy-are-not-associated-with-markers-of-inflammation-or-activation
#11
Rajesh T Gandhi, Deborah K McMahon, Ronald J Bosch, Christina M Lalama, Joshua C Cyktor, Bernard J Macatangay, Charles R Rinaldo, Sharon A Riddler, Evelyn Hogg, Catherine Godfrey, Ann C Collier, Joseph J Eron, John W Mellors
Antiretroviral therapy (ART) reduces levels of HIV-1 and immune activation but both can persist despite clinically effective ART. The relationships among pre-ART and on-ART levels of HIV-1 and activation are incompletely understood, in part because prior studies have been small or cross-sectional. To address these limitations, we evaluated measures of HIV-1 persistence, inflammation, T cell activation and T cell cycling in a longitudinal cohort of 101 participants who initiated ART and had well-documented sustained suppression of plasma viremia for a median of 7 years...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28426533/hiv-dna-content-in-different-cd4-t-cell-subsets-correlates-with-cd4-cd8-ratio-or-length-of-efficient-treatment
#12
Lara Gibellini, Simone Pecorini, Sara de Biasi, Elena Bianchini, Margherita Digaetano, Marcello Pinti, Gianluca Carnevale, Vanni Borghi, Giovanni Guaraldi, Cristina Mussini, Andrea Cossarizza, Milena Nasi
OBJECTIVES: HIV establishes a latent infection at different degrees within naïve (TN) or central (TCM) and effector memory (TEM) CD4+ T cell. Studying patients in whom HIV production was suppressed by combined antiretroviral therapy (cART), our main aim was to find which factors are related or can influence intracellular viral reservoir in different CD4+ T cell subsets. METHODS: We enrolled 32 HIV+ patients successfully treated for > 2 years, with a CD4+ T cell count > 500 cells/μL and plasma viremia undetectable from at least one year...
April 19, 2017: AIDS
https://www.readbyqxmd.com/read/28426102/infection-related-complications-during-treatment-for-childhood-acute-lymphoblastic-leukemia
#13
H Inaba, D Pei, J Wolf, S C Howard, R T Hayden, M Go, O Varechtchouk, T Hahn, J Buaboonnam, M L Metzger, J E Rubnitz, R C Ribeiro, J T Sandlund, S Jeha, C Cheng, W E Evans, M V Relling, C-H Pui
Background: Comprehensive studies on neutropenia and infection-related complications in patients with acute lymphoblastic leukemia (ALL) are lacking. Patients and methods: We evaluated infection-related complications that were grade ≥3 on National Cancer Institute's Common Terminology Criteria for Adverse Events (version 3.0) and their risk factors in 409 children with newly diagnosed ALL throughout the treatment period. Results: Of the 2420 infection episodes, febrile neutropenia and clinically or microbiologically documented infection were seen in 1107 and 1313 episodes, respectively...
February 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28425045/soluble-triggering-receptor-expressed-on-myeloid-cell-1-strem-1-a-potential-biomarker-for-the-diagnosis-of-infectious-diseases
#14
REVIEW
Changlin Cao, Jingxian Gu, Jingyao Zhang
Sensitive and useful biomarkers for the diagnosis and prognosis of infectious diseases have been widely developed. An example of these biomarkers is triggering receptor expressed on myeloid cell-1 (TREM-1), which is a cell surface receptor expressed on monocytes/macrophages and neutrophils. TREM-1 amplifies inflammation by activating the TREM-1/DAP12 pathway. This pathway is triggered by the interaction of TREM-1 with ligands or stimulation by bacterial lipopolysaccharide. Consequently, pro-inflammatory cytokines and chemokines are secreted...
April 19, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28424975/etv-2-activated-proliferation-of-endothelial-cells-and-attenuated-acute-hindlimb-ischemia-in-mice
#15
Phuc Van Pham, Ngoc Bich Vu, Hoa Trong Nguyen, Thuy Thi-Thanh Dao, Ha Thi-Ngan Le, Lan Thi Phi, Oanh Thi-Kieu Nguyen, Ngoc Kim Phan
Ischemia is the reduction of blood flow to tissues by injury of blood vessels. Depending on the sites of tissues and grade of ischemia, ischemia can cause many serious complications. This study aimed to evaluate the effects of the E-twenty six (ETS) factor Ets variant 2 (ETV2) gene expression in angiogenesis and the effect of ETV2 gene therapy in a mouse model of hindlimb ischemia. The role of ETV2 on endothelial cell proliferation was evaluated in vitro. Knockdown of ETV2 expression was done using short hairpin RNA (shRNA) lentiviral viral particles...
April 19, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28424574/present-molecular-limitations-of-on-bipolar-cell-targeted-gene-therapy
#16
Michiel van Wyk, Elmar C Hulliger, Lara Girod, Andreas Ebneter, Sonja Kleinlogel
Recent studies have demonstrated the safety and efficacy of ocular gene therapy based on adeno-associated viral vectors (AAVs). Accordingly, a surge in promising new gene therapies is entering clinical trials, including the first optogenetic therapy for vision restoration. To date, optogenetic therapies for vision restoration target either the retinal ganglion cells (GCs) or presynaptic ON-bipolar cells (OBCs). Initiating light responses at the level of the OBCs has significant advantages over optogenetic activation of GCs...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28424453/comorbid-human-immunodeficiency-virus-hiv-and-muscle-specific-kinase-musk-myasthenia-gravis-a-case-report-and-literature-review
#17
Michael Sherpa, Ravi K Metai, Viki Kumar, Tinu Hirachan, Kawser U Ahmed, Sharon J Atkinson
BACKGROUND HIV infections with concomitant immunologically-mediated disorders have been frequently described but there has been little research on the association between HIV and myasthenia gravis. MuSK myasthenia gravis coexisting with HIV is an even a rarer entity and can occur as a part of immune restoration disease. We report the case of a patient with asymptomatic HIV infection who presented with new-onset MuSK myasthenia gravis. CASE REPORT A 44-year-old African-American woman with HIV since 2004 and on highly active antiretroviral therapy (HAART) presented to the ED with complains of double vision and difficulty swallowing for 2 weeks...
April 20, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28424287/protective-efficacy-of-formaldehyde-inactivated-whole-virus-vaccine-and-antivirals-in-a-murine-model-of-coxsackievirus-a10-infection
#18
Zhenjie Zhang, Zhaopeng Dong, Juan Li, Michael J Carr, Dongming Zhuang, Jianxing Wang, Yawei Zhang, Shujun Ding, Yigang Tong, Dong Li, Weifeng Shi
Coxsackievirus A10 (CVA10) is one of the major pathogens associated with hand, foot and mouth disease (HFMD). CVA10 infection can cause herpangina and viral pneumonia, which can be complicated by severe neurological sequelae. Morbidity and mortality of CVA10-associated HFMD has been increasing in recent years, particularly in the pan-Pacific region. There are limited studies however on the pathogenesis and immunology of CVA10-associated HFMD infections, and few antiviral drugs or vaccines have been reported...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28424253/identification-of-acute-hiv-1-infection-by-hologic-aptima-hiv-1-rna-qualitative-assay
#19
Mark M Manak, Leigh Anne Eller, Jennifer Malia, Linda L Jagodzinski, Rapee Trichavaroj, Joseph Oundo, Cornelia Lueer, Fatim Cham, Mark de Souza, Nelson L Michael, Merlin L Robb, Sheila A Peel
The Hologic Aptima HIV-1 Qualitative RNA assay was used in a rigorous screening approach designed to identify individuals at the earliest stage of HIV-1 infection for enrollment into subsequent studies of cellular and viral events in early infection (RV217/Early Capture HIV Cohort - ECHO Study). Volunteers at high risk of HIV-1 infection were recruited from study sites in Thailand, Tanzania, Uganda and Kenya with high HIV-1 prevalence rates among the populations examined. Small volume blood samples were collected by finger-stick at twice-weekly intervals and tested by Aptima...
April 19, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28423213/systemic-tumor-targeted-sodium-iodide-symporter-nis-gene-therapy-of-hepatocellular-carcinoma-mediated-by-b6-peptide-polyplexes
#20
Sarah Urnauer, Kathrin Klutz, Geoffrey K Grünwald, Stephan Morys, Nathalie Schwenk, Christian Zach, Franz-Josef Gildehaus, Wolfgang Roedl, Manfred Ogris, Ernst Wagner, Christine Spitzweg
BACKGROUND: Non-viral polymer-based gene transfer represents an adaptable system for tumor-targeted gene therapy, as various design strategies of shuttle systems together with the mechanistic concept of active tumor targeting lead to improved gene delivery vectors resulting in higher tumor specificity, efficacy and safety. METHODS: Using the sodium iodide symporter (NIS) as theranostic gene, non-viral gene delivery vehicles based on linear polyethylenimine (LPEI), polyethylene glycol (PEG) and coupled with the synthetic peptide B6 (LPEI-PEG-B6), which specifically binds to tumor cells, were investigated in a hepatocellular carcinoma (HCC) xenograft model for tumor-selectivity and transduction efficiency...
April 19, 2017: Journal of Gene Medicine
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