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Viral conjunctivitis

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https://www.readbyqxmd.com/read/29669836/cd4-t-cell-epitope-specificity-and-cytokine-potential-are-preserved-as-cells-transition-from-the-lung-vasculature-to-lung-tissue-following-influenza-infection
#1
Anthony DiPiazza, Nathan Laniewski, Anuj Rattan, David J Topham, Jim Miller, Andrea J Sant
Pulmonary CD4 T cells are critical in respiratory virus control, both by delivering direct effector function and through coordinating responses of other immune cells. Recent studies have shown that following influenza infection, virus-specific CD4 T cells are partitioned between pulmonary vasculature and lung tissue. However, very little is known about the peptide specificity or functional differences of CD4 T cells within these two compartments. Using a mouse model of influenza infection in conjunction with intravascular labeling in vivo , the cell surface phenotype, epitope specificity, and functional potential of the endogenous polyclonal CD4 T cell response was examined by tracking nine independent CD4 T cell epitope specificities...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29667338/variation-in-the-tek-gene-is-not-associated-with-asthma-but-with-allergic-conjunctivitis
#2
L E Fodor, A Gézsi, Z Gál, A Nagy, A Kiss, A Bikov, C Szalai
The Tie2 receptor is an important player in angiogenesis. The Tie2 mRNA and protein are abundantly expressed in the lungs and the associated pathway also has an important role in the development and function of the eye. Tie2 is encoded by the TEK gene in humans. Recently, variations in the TEK gene have been found associated with asthma. The objective of the present study was to investigate whether variations in the TEK gene influenced the susceptibility to pediatric asthma and/or associated phenotypes like GINA status, viral- or exercise-induced asthma, allergic asthma, indoor, outdoor, inhalative allergies, IgE and eosonophil levels, allergic rhinitis and allergic conjunctivitis...
April 18, 2018: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/29656541/a-novel-herpesvirus-associated-with-chronic-superficial-keratitis-and-proliferative-conjunctivitis-in-a-great-horned-owl-bubo-virginianus
#3
Molly D Gleeson, Bret A Moore, Sydney G Edwards, Sarah Stevens, April L Childress, James F X Wellehan, Jessica Robertson, Christopher J Murphy, Michelle G Hawkins, Joanne Paul-Murphy
An adult great-horned owl (Bubo virginianus; GHOW) presented with a history of recurrent corneal ulceration of the right eye (OD). Findings included ulcerative superficial keratitis, proliferative conjunctivitis, and iris pigmentary changes. The ulcer was initially nonresponsive to medical therapy, but showed rapid and appropriate healing following diamond burr debridement. Proliferative conjunctivitis markedly improved following topical antiviral therapy with cidofovir 1%, interferon alpha 2B ophthalmic solutions, and oral l-lysine...
April 14, 2018: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/29618645/feline-herpesvirus-1-fhv-1-us3-blocks-type-i-ifn-signal-pathway-by-targeting-irf3-dimerization-in-a-kinase-independent-manner
#4
Jin Tian, Yongxiang Liu, Xiaoxiao Liu, Xue Sun, Jikai Zhang, Liandong Qu
As a prevalent agent in cats, feline herpesvirus 1 (FHV-1) infection contributes to feline respiratory disease and acute and chronic conjunctivitis. FHV-1 can successfully evade the host innate immune response and persist for the lifetime of the cat. Several mechanisms of immune evasion by human herpesviruses have been elucidated, but the mechanism by FHV-1 remains unknown. In this study, we screened for FHV-1 ORFs responsible for inhibiting type I interferon (IFN) pathway with an IFN-β promoter reporter and an analysis of IFN-β mRNA levels in HEK 293T cells and CRFK feline cell line, and we identified the Ser/Thr kinase US3 as the most powerful inhibitor...
April 4, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29593376/clinical-and-virological-analysis-of-epidemic-keratoconjunctivitis-caused-by-adenovirus-type-54-in-a-regional-ophthalmic-clinic-in-kyushu-japan
#5
Takashi Uemura, Hironori Migita, Tomohiro Ueno, Tomoko Tsukahara-Kawamura, Yusuke Saeki, Tsuguto Fujimoto, Eiichi Uchio
Background: Human adenovirus type 54 (HAdV-54) is a novel type of adenovirus that belongs to species D and has thus far been detected only in Japan in patients with epidemic keratoconjunctivitis (EKC). There was a large nationwide outbreak of HAdV-54 EKC from 2015 to 2016 in Japan. The clinical characteristics of an outbreak of HAdV-54 conjunctivitis treated in a regional ophthalmic clinic in Fukuoka, Japan, in 2016 were analyzed. Patients and methods: A consecutive series of 55 cases diagnosed clinically as EKC confirmed by HAdV-54 detection from conjunctival scrapings by polymerase chain reaction (PCR) method between 17 June 2016 and 29 August 2016 were enrolled...
2018: Clinical Ophthalmology
https://www.readbyqxmd.com/read/29582629/urinary-metabolomic-profiling-in-chronic-hepatitis-b-viral-infection-using-gas-chromatography-mass-spectrometry
#6
Kanthanadon Dittharot, Paisan Jittorntam, Prapin Wilairat, Abhasnee Sobhonslidsuk
Background: Chronic hepatitis B (CHB) can lead to cirrhosis and hepatocellular carcinoma. The metabolomic profiling has been shown to be associated with pathogenic mechanisms in many medical conditions including CHB. The purpose of this study was to investigate the urine metabolomic profiles in CHB patients by gas chromatography/mass spectrometry (GC/MS). Methods: Urine samples were collected from CHB patients (n = 20) and normal control subjects (n = 20). Metabolite profiles were assessed using GC/MS in conjunction with multivariate statistical analysis, in order to identify biomarker metabolites...
March 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29563320/an-ox40-ox40l-interaction-directs-successful-immunity-to-hepatitis-b-virus
#7
Jean Publicover, Anuj Gaggar, Jillian M Jespersen, Ugur Halac, Audra J Johnson, Amanda Goodsell, Lia Avanesyan, Stephen L Nishimura, Meghan Holdorf, Keith G Mansfield, Joyce Bousquet Judge, Arya Koshti, Michael Croft, Adil E Wakil, Philip Rosenthal, Eric Pai, Stewart Cooper, Jody L Baron
Depending on age of acquisition, hepatitis B virus (HBV) can induce a cell-mediated immune response that results in either cure or progressive liver injury. In adult-acquired infection, HBV antigens are usually cleared, whereas in infancy-acquired infection, they persist. Individuals infected during infancy therefore represent the majority of patients chronically infected with HBV (CHB). A therapy that can promote viral antigen clearance in most CHB patients has not been developed and would represent a major health care advance and cost mitigator...
March 21, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29546726/viral-transduction-of-schwann-cells-for-peripheral-nerve-repair
#8
Christine D Plant, Giles W Plant
Schwann cells are the primary inducers of regeneration of the peripheral nervous system. Schwann cells can be isolated from adult peripheral nerves, expanded in large numbers, and genetically transduced by viral vectors in vitro prior to their use in vivo. Here we describe how to use lentiviral vectors to transduce primary Schwann cells in vitro. We also describe how cultured Schwann cells can be used in conjunction with decellularized peripheral nerve sheaths prepared by multiple freeze thawing of peripheral nerve tissue...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29543798/the-seasonal-influence-of-climate-and-environment-on-yellow-fever-transmission-across-africa
#9
Arran Hamlet, Kévin Jean, William Perea, Sergio Yactayo, Joseph Biey, Maria Van Kerkhove, Neil Ferguson, Tini Garske
BACKGROUND: Yellow fever virus (YFV) is a vector-borne flavivirus endemic to Africa and Latin America. Ninety per cent of the global burden occurs in Africa where it is primarily transmitted by Aedes spp, with Aedes aegypti the main vector for urban yellow fever (YF). Mosquito life cycle and viral replication in the mosquito are heavily dependent on climate, particularly temperature and rainfall. We aimed to assess whether seasonal variations in climatic factors are associated with the seasonality of YF reports...
March 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29532238/is-the-brain-spared-in-crimean-congo-haemorrhagic-fever-an-mr-swi-study-to-reveal-cns-involvement
#10
Bilge Öztoprak, İbrahim Öztoprak, Aynur Engin
OBJECTIVES: The aim of this prospective study is to investigate the central nervous system involvement in Crimean-Congo haemorrhagic fever (CCHF) with magnetic resonance imaging (MRI) in conjunction with clinical and laboratory findings. METHODS: Between July 2015 and August 2016, 36 patients with CCHF were undergone brain MRI including SWI. Two MRIs, one at the time of admission and the second in the convalescent period, were performed for each patient in order to see if there is any sign of central nervous system (CNS) involvement, especially in terms of intracranial haemorrhage or viral encephalitis...
March 12, 2018: European Radiology
https://www.readbyqxmd.com/read/29498019/a-review-of-microbiota-and-irritable-bowel-syndrome-future-in-therapies
#11
REVIEW
Bruno K Rodiño-Janeiro, María Vicario, Carmen Alonso-Cotoner, Roberto Pascua-García, Javier Santos
Irritable bowel syndrome (IBS), one of the most frequent digestive disorders, is characterized by chronic and recurrent abdominal pain and altered bowel habit. The origin seems to be multifactorial and is still not well defined for the different subtypes. Genetic, epigenetic and sex-related modifications of the functioning of the nervous and immune-endocrine supersystems and regulation of brain-gut physiology and bile acid production and absorption are certainly involved. Acquired predisposition may act in conjunction with infectious, toxic, dietary and life event-related factors to enhance epithelial permeability and elicit mucosal microinflammation, immune activation and dysbiosis...
March 1, 2018: Advances in Therapy
https://www.readbyqxmd.com/read/29471465/effects-of-dietary-energy-level-and-intake-of-corn-by-product-based-diets-on-newly-received-growing-cattle-antibody-production-acute-phase-protein-response-stress-and-immunocompetency-of-healthy-and-morbid-animals
#12
T J Spore, S P Montgomery, E C Titgemeyer, G A Hanzlicek, C I Vahl, T G Nagaraja, K T Cavalli, W R Hollenbeck, R A Wahl, D A Blasi
Effects of dietary energy level and intake of corn by-product based diets on antibody production, acute phase protein response, stress, and immunocompetency of healthy and morbid newly received growing cattle were evaluated. Four dietary treatments were formulated to supply 0.99, 1.10, 1.21, and 1.32 Mcal NEg/ kg DM and were offered at 100%, 95%, 90%, and 85% of ad libitum based on 0.99/100 treatment intake, respectively. Thirty-two pens were utilized with approximately 12 animals/pen. Four animals from each pen (32/dietary treatment) were randomly selected and used to serve as a subset to monitor immune function and acute phase proteins following a split-plot design...
February 19, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29467021/conjunctival-transcriptome-profiling-of-solomon-islanders-with-active-trachoma-in-the-absence-of-chlamydia-trachomatis-infection
#13
Hristina Vasileva, Robert Butcher, Harry Pickering, Oliver Sokana, Kelvin Jack, Anthony W Solomon, Martin J Holland, Chrissy H Roberts
BACKGROUND: Clinical signs of active (inflammatory) trachoma are found in many children in the Solomon Islands, but the majority of these individuals have no serological evidence of previous infection with Chlamydia trachomatis. In Temotu and Rennell and Bellona provinces, ocular infections with C. trachomatis were seldom detected among children with active trachoma; a similar lack of association was seen between active trachoma and other common bacterial and viral causes of follicular conjunctivitis...
February 21, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29460890/-increased-myocardial-expression-of-toll-like-receptors-2-and-9-as-a-marker-of-active-myocarditis-and-a-possible-predictor-of-therapeutic-effectiveness
#14
E A Kogan, O V Blagova, N M Faizullina, A V Nedostup, V A Sulimov
AIM: to investigate the myocardial expression of some structural proteins and markers of cellular proliferation and innate immunity for assessing their possible diagnostic and prognostic role in patients with chronic myocarditis. SUBJECTS AND METHODS: The investigation enrolled 23 patients (16 men; mean age, 52.0±12.4 years (range, 27 to 73) with various forms of noncoronarogenic myocardial injury who underwent right ventricular endomyocardial biopsy (n=4), intraoperative left ventricular biopsy (n=17) or autopsy (n=2)...
2018: Arkhiv Patologii
https://www.readbyqxmd.com/read/29447395/characteristics-and-outcomes-of-coronavirus-infection-in-children-the-role-of-viral-factors-and-an-immunocompromised-state
#15
Chikara Ogimi, Janet A Englund, Miranda C Bradford, Xuan Qin, Michael Boeckh, Alpana Waghmare
Background: Immunocompromised children might be predisposed to serious infections from human coronaviruses (HCoVs), including strains OC43, NL63, HKU1, and 229E; however, the virologic and clinical features of HCoV infection in immunocompromised children have not been compared to those in nonimmunocompromised children. Methods: We retrospectively analyzed a cohort of children who presented to Seattle Children's Hospital and in whom HCoV was detected by a multiplex respiratory polymerase chain reaction assay of a nasal sample between October 2012 and March 2016...
February 13, 2018: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/29442622/chitosan-stabilized-gold-folate-poly-lactide-co-glycolide-nanoplexes-facilitate-efficient-gene-delivery-in-hepatic-and-breast-cancer-cells
#16
Jude Akinyelu, Moganavelli Singh
The biodegradable polymer, poly(lactide-co-glycolide) is a popular polymer of choice in many nanotherapeutic studies. Herein, we report on the synthesis and evaluation of four chitosan stabilized poly(lactide-co-glycolide) nanoparticles with and without coating with gold, and the targeting ligand, folic acid, as potential non-viral gene delivery vectors. The poly(lactide-co-glycolide) nanoparticles were synthesized via nanoprecipitation/solvent evaporation method in conjunction with the surface functionalizing folic acid and chitosan...
July 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29435938/transgene-like-animal-models-using-intronic-micrornas
#17
Shi-Lung Lin, Shin-Ju E Chang, Shao-Yao Ying
Transgenic animal models are valuable tools for testing gene functions and drug mechanisms in vivo. They are also the best similitude for a human body for etiological and pathological research of diseases. All pharmaceutically developed medicines must be proven to be safe and effective in animals before approval by the Food and Drug Administration (FDA) to be used in clinical trials. To this end, the transgenic animal models of diseases serve as the front line of drug evaluation. However, there is currently no transgenic animal model for microRNA (miRNA)-related research...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29429449/investigation-of-function-and-regulation-of-the-yb-1-cellular-factor-in-hiv-replication
#18
Yu-Mi Jung, Kyung-Lee Yu, Seong-Hyun Park, Seong-Deok Lee, Min-Jeong Kim, Ji-Chang You
Y-box binding protein 1 (YB-1) is a member of the cold-shock domain (CSD) protein superfamily. It participates in a wide variety of cellular events, including transcription, RNA splicing, translation, DNA repair, drug resistance, and stress responses. We investigated putative functions of YB-1 in HIV-1 replication. Functional studies using overexpression or knockdown of YB-1 in conjunction with transfection of proviral DNA showed that YB-1 enhances virus production. We found YB-1 regulates HIV-1 production by stimulating viral transcription using HIV-1 LTR sequence U3RU5 with Luciferase assay...
February 12, 2018: BMB Reports
https://www.readbyqxmd.com/read/29427230/comparison-of-self-report-to-biomarkers-of-recent-hiv-infection-findings-from-the-start-trial
#19
Katherine E Schlusser, Shweta Sharma, Pola de la Torre, Giuseppe Tambussi, Rika Draenert, Angie N Pinto, Julia A Metcalf, Danielle German, James D Neaton, Oliver Laeyendecker
Identifying individuals with recent HIV infection is critical to research related to viral reservoirs, outbreak investigations and intervention applications. A multi-assay algorithm (MAA) for recency of infection was used in conjunction with self-reported date of infection and documented date of diagnosis to estimate the number of participants recently infected in the Strategic Timing of AntiRetroviral Treatment (START) trial. We tested samples for three groups of participants from START using a MAA: (1) 167 individuals who reported being infected ≤ 6 months before randomization; (2) 771 individuals who did not know their date of infection but were diagnosed within 6 months before randomization; and (3) as controls for the MAA, 199 individuals diagnosed with HIV ≥ 2 years before randomization...
February 9, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29371435/vagus-nerve-stimulation-enhances-stable-plasticity-and-generalization-of-stroke-recovery
#20
Eric C Meyers, Bleyda R Solorzano, Justin James, Patrick D Ganzer, Elaine S Lai, Robert L Rennaker, Michael P Kilgard, Seth A Hays
BACKGROUND AND PURPOSE: Chronic impairment of the arm and hand is a common consequence of stroke. Animal and human studies indicate that brief bursts of vagus nerve stimulation (VNS) in conjunction with rehabilitative training improve recovery of motor function after stroke. In this study, we tested whether VNS could promote generalization, long-lasting recovery, and structural plasticity in motor networks. METHODS: Rats were trained on a fully automated, quantitative task that measures forelimb supination...
January 25, 2018: Stroke; a Journal of Cerebral Circulation
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