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https://www.readbyqxmd.com/read/28432975/vaccination-strategies-against-zika-virus
#1
REVIEW
Estefania Fernandez, Michael S Diamond
The epidemic emergence of Zika virus (ZIKV) in 2015-2016 has been associated with congenital malformations and neurological sequela. Current efforts to develop a ZIKV vaccine build on technologies that successfully reduced infection or disease burden against closely related flaviviruses or other RNA viruses. Subunit-based (DNA plasmid and modified mRNA), viral vectored (adeno- and measles viruses) and inactivated viral vaccines are already advancing to clinical trials in humans after successful mouse and non-human primate studies...
April 19, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28432842/low-grade-inflammation-and-tryptophan-kynurenine-pathway-activation-are-associated-with-adverse-cardiac-remodeling-in-primary-hyperparathyroidism-the-epath-trial
#2
Nicolas Verheyen, Andreas Meinitzer, Martin Robert Grübler, Klemens Ablasser, Ewald Kolesnik, Astrid Fahrleitner-Pammer, Evgeny Belyavskiy, Christian Trummer, Verena Schwetz, Elisabeth Pieske-Kraigher, Jakob Voelkl, Ioana Alesutan, Cristiana Catena, Leonardo Alberto Sechi, Helmut Brussee, Dirk von Lewinski, Winfried März, Burkert Pieske, Stefan Pilz, Andreas Tomaschitz
BACKGROUND: Primary hyperparathyroidism (pHPT) is associated with low-grade inflammation, left ventricular hypertrophy and increased cardiovascular mortality, but the association between inflammatory markers and parameters of adverse cardiac remodeling is unknown. We investigated the relationship between C-reactive protein (CRP), the essential amino acid tryptophan and its pro-inflammatory derivatives kynurenine and quinolinic acid (QUIN) with echocardiographic parameters. METHODS: Cross-sectional baseline data from the "Eplerenone in Primary Hyperparathyroidism" trial were analyzed...
April 22, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28432036/increased-inflammation-from-childhood-to-adolescence-predicts-sleep-apnea-in-boys-a-preliminary-study
#3
Jordan Gaines, Alexandros N Vgontzas, Julio Fernandez-Mendoza, Fan He, Susan L Calhoun, Duanping Liao, Edward O Bixler
While chronic systemic inflammation in obstructive sleep apnea (OSA) has been traditionally considered a consequence of intermittent hypoxia, several treatment studies targeting inflammation suggest that this process may precede the development of the disorder. A recent cross-sectional study in the Penn State Child Cohort (PSCC) revealed that inflammation largely mediates the association between visceral adiposity and OSA in adolescence. The purpose of this study was to examine for the first time whether, longitudinally, inflammation precedes OSA during this developmental period...
April 18, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28432028/evaluation-of-se-phenyl-thiazolidine-4-carboselenoate-protective-activity-against-oxidative-and-behavioral-stress-in-the-maniac-model-induced-by-ouabain-in-male-rats
#4
Fernanda Severo Sabedra Sousa, Natália Seus, Diego Alves, Helena Domingues Salles, Paulo H Schneider, Lucielli Savegnago
This study investigates Se-phenyl-thiazolidine-4-carboselenoate (Se-PTC) protective activity against oxidative and behavioral stress in the model of mania induced by ouabain (OUA) in male rats. The compound used was Se-PTC (50mg/kg) and the positive control LiCl (45mg/kg) was administered for intragastric route (i.g.) 30min prior to administration of OUA (10(-5)M). OUA was dissolved in artificial cerebrospinal fluid (aCSF) and administered at the 5μL through an intracerebroventricular (i.c.v) cannula. The pretreatment with Se-PTC was effective in preventing the increase in locomotor activity induced by OUA, however the positive control LiCl is capable to block crossing augmentation induced by OUA...
April 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28431640/rapid-assessment-of-drugs-of-abuse
#5
Joesph R Wiencek, Jennifer M Colby, James H Nichols
Laboratory testing for drugs of abuse has become standard practice in many settings both forensic and clinical. Urine is the predominant specimen, but other specimens are possible including hair, nails, sweat, and oral fluid. Point-of-care test kits provide for rapid analysis at the site where specimens are collected allowing for immediate action on the results. POCT is based on immunochromatography where the drug in the patient's sample competes with drug and antibody conjugates in the test to develop or block the development of a colored line...
2017: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/28429893/significant-associations-between-c-reactive-protein-levels-body-adiposity-distribution-and-peripheral-blood-cells-in-school-age-children
#6
Aralia Berenice Salgado-Bernabé, Luz Elena Ramos-Arellanol, Iris Paola Guzmán-Guzmán, José Francisco Muñoz-Valle, Natividad Castro-Alarcón, Amalia Vences-Velázquez, Lorenzo Salga-do-Goytia, Isela Parra-Rojas
Obesity is associated with a state of chronic low-grade inflammation. Ge- nerally, there are significant correlations between body mass index and increased C-reactive protein levels. We investigated the relationship of high sensitivity C-reactive protein (hsCRP) levels with body adiposity distribution and blood cell count in obese children. A cross-sec- tional study was performed in 225 Mexican children. In the study were included 106 obese and 119 normal-weight children, aged 6-13 years old. The body composition was evaluated by BMI, body circumferences and skinfold thickness...
June 2016: Investigación Clínica
https://www.readbyqxmd.com/read/28429726/verteporfin-induced-formation-of-protein-cross-linked-oligomers-and-high-molecular-weight-complexes-is-mediated-by-light-and-leads-to-cell-toxicity
#7
Eleni K Konstantinou, Shoji Notomi, Cassandra Kosmidou, Katarzyna Brodowska, Ahmad Al-Moujahed, Fotini Nicolaou, Pavlina Tsoka, Evangelos Gragoudas, Joan W Miller, Lucy H Young, Demetrios G Vavvas
Verteporfin (VP) was first used in Photodynamic therapy, where a non-thermal laser light (689 nm) in the presence of oxygen activates the drug to produce highly reactive oxygen radicals, resulting in local cell and tissue damage. However, it has also been shown that Verteporfin can have non-photoactivated effects such as interference with the YAP-TEAD complex of the HIPPO pathway, resulting in growth inhibition of several neoplasias. More recently, it was proposed that, another non-light mediated effect of VP is the formation of cross-linked oligomers and high molecular weight protein complexes (HMWC) that are hypothesized to interfere with autophagy and cell growth...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429374/immune-response-of-highly-conserved-influenza-a-virus-matrix-1-peptides
#8
Neha Lohia, Manoj Baranwal
Influenza vaccine development is considered to be complicated and challenging. Constantly evolving influenza viruses require continuous global monitoring and reformulation of the vaccine strains. Peptide conserved among different strains and subtypes of influenza A virus are well-thought-out to be attractive targets for development of cross protective influenza vaccine based on cellular response. Three highly conserved (> 90%) matrix 1 peptides ILGFVFTLTVPSERGLQRRRF (PM 1), LIRHENRMVLASTTAKA (PM 2) and LQAYQKRMGVQMQR (PM 3) containing multiple T cell epitopes have been assessed for their immunogenic potential in vitro, subjecting peripheral blood mononuclear cells from healthy volunteers to repetitive stimulation of these chemically synthesised peptides and measuring their interferon (IFN)-γ level and proliferation by ELISA (Enzyme-linked immunosorbent assay) and MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium bromide) assay, respectively...
April 21, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28428694/a-microarray-immunoassay-for-serum-thyrotropin-and-thyroglobulin-using-antibodies-immobilized-on-track-etched-membranes
#9
Bharti Jain, J Kumarasamy, Chandrakala Gholve, Savita Kulkarni, M G R Rajan
Serum thyroglobulin (Tg) and thyroid stimulating hormone (TSH) measurements have evolved as important analytes for monitoring the prognosis of patients with differentiated thyroid cancer, post-thyroidectomy. Individual analyte immunoassay is the current practice in clinical pathology, but the simultaneous assay for all relevant analytes for a given disease, can reduce assay costs, improve patient compliance and give the clinician more information for an unequivocal diagnosis. Microarray immunoassay (MI) can achieve this goal and, hence, we have developed and validated a immuno-radiometric MI for quantitation of serum TSH and Tg by using highly micro-porous polycarbonate (PC) track-etched membranes (TEM) to immobilize the monoclonal anti-TSH and polyclonal anti-Tg antibodies in ~1 mm diameter spots...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28428353/development-of-a-bnp1-32-immunoassay-that-does-not-cross-react-with-probnp
#10
Lynley K Lewis, Sara D Raudsepp, Tim G Yandle, Timothy C Prickett, A Mark Richards
BACKGROUND: Plasma B-type natriuretic peptide (BNP) concentration reflects cardiac dysfunction and assists in determining the diagnosis and prognosis of heart failure (HF). Current BNP assays overestimate circulating bioactive BNP1-32 concentrations as they also detect less active BNP metabolites and proBNP. A specific BNP1-32 assay with negligible cross-reactivity to proBNP and/or BNP metabolites may be advantageous. METHODS: We developed a Luminex-based specific BNP1-32 immunoassay and compared results obtained from 3 other BNP assays (a Luminex-based total-BNP assay, our BNP RIA, and the commercially available Abbott Architect BNP assay) in plasma from 42 patients with HF and 22 healthy controls...
April 20, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28427623/degradation-of-reactive-blue-13-using-hydrodynamic-cavitation-effect-of-geometrical-parameters-and-different-oxidizing-additives
#11
Sunil Rajoriya, Swapnil Bargole, Virendra Kumar Saharan
Decolorization of reactive blue 13 (RB13), a sulphonated azo dye, was investigated using hydrodynamic cavitation (HC). The aim of research article is to check the influence of geometrical parameters (total flow area, the ratio of throat perimeter to its cross-sectional area, throat shape and size, etc.) and configuration of the cavitating devices on decolorization of RB13 in aqueous solution. For this purpose, eight cavitating devices i.e. Circular and slit venturi, and six orifice plates having different flow area and perimeter were used in the present work...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427273/association-of-exclusive-breastfeeding-duration-with-systemic-inflammation-markers-in-adolescents-a-cross-sectional-study
#12
Emilio González-Jiménez, Jacqueline Schmidt-RioValle, Laura Sinausía, Javier S Perona
BACKGROUND: Breastfeeding duration has been associated with less low-grade inflammation in healthy adolescents, but there is scarce information regarding obese subjects. This study aimed to evaluate whether exclusive breastfeeding is related to serum concentrations of inflammatory markers in a population of Spanish adolescents. METHOD: A cross-sectional study was performed on 1,001 adolescents (13.2 ± 1.2 years) randomly recruited from schools in southeast Spain...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/28424002/enzyme-linked-immunosorbent-assays-for-coproantigen-detection-of-ancylostoma-caninum-and-toxocara-canis-in-dogs-and-toxocara-cati-in-cats
#13
David A Elsemore, Jinming Geng, Jennifer Cote, Rita Hanna, Araceli Lucio-Forster, Dwight D Bowman
We report the development and field validation of 2 ELISAs for the detection of Ancylostoma caninum or Toxocara canis coproantigens in the feces of dogs with experimental and natural infections, and evidence of cross-reactivity with respective feline counterparts. A. caninum-specific coproantigens were detected in feces of experimentally infected dogs starting at 9 d post-infection (dpi), whereas eggs were not seen until 23 dpi. T. canis-specific coproantigens were detected in 3 of 5 experimentally infected dogs by 31 dpi, and 4 of the 5 animals by 38 dpi...
April 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28423025/determination-of-influenza-b-identity-and-potency-in-quadrivalent-inactivated-influenza-vaccines-using-lineage-specific-monoclonal-antibodies
#14
Swati Verma, Jackeline Soto, Anupama Vasudevan, Falko Schmeisser, Esmeralda Alvarado-Facundo, Wei Wang, Carol D Weiss, Jerry P Weir
Co-circulation of two antigenically and genetically distinct lineages of influenza B virus, represented by prototype viruses B/Victoria/2/1987 and B/Yamagata/16/1988, has led to the development of quadrivalent influenza vaccines that contain two influenza B antigens. The inclusion of two influenza B antigens presents challenges for the production and regulation of inactivated quadrivalent vaccines, including the potential for cross-reactivity of the reagents used in identity and potency assays because of the relative close relatedness of the hemagglutinin (HA) from the two virus lineages...
2017: PloS One
https://www.readbyqxmd.com/read/28422757/cross-reactive-dengue-human-monoclonal-antibody-prevents-severe-pathologies-and-death-from-zika-virus-infections
#15
Yiu-Wing Kam, Cheryl Yi-Pin Lee, Teck-Hui Teo, Shanshan W Howland, Siti Naqiah Amrun, Fok-Moon Lum, Peter See, Nicholas Qing-Rong Kng, Roland G Huber, Mei-Hui Xu, Heng-Liang Tan, Andre Choo, Sebastian Maurer-Stroh, Florent Ginhoux, Katja Fink, Cheng-I Wang, Lisa F P Ng, Laurent Rénia
Zika virus (ZIKV) infections have been linked with neurological complications and congenital Zika syndrome. Given the high level of homology between ZIKV and the related flavivirus dengue virus (DENV), we investigated the level of cross-reactivity with ZIKV using a panel of DENV human mAbs. A majority of the mAbs showed binding to ZIKV virions, with several exhibiting neutralizing capacities against ZIKV in vitro. Three of the best ZIKV-neutralizing mAbs were found to recognize diverse epitopes on the envelope (E) glycoprotein: the highly conserved fusion-loop peptide, a conformation-specific epitope on the E monomer, and a quaternary epitope on the virion surface...
April 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28422494/genetically-encoded-2-aryl-5-carboxytetrazoles-for-site-selective-protein-photo-cross-linking
#16
Yulin Tian, Marco Paolo Jacinto, Yu Zeng, Zhipeng Yu, Jun Qu, Wenshe R Liu, Qing Lin
The genetically encoded photo-cross-linkers promise to offer a temporally controlled tool to map transient and dynamic protein-protein interaction complexes in living cells. Here we report the synthesis of a panel of 2-aryl-5-carboxytetrazole-lysine analogs (ACTKs) and their site-specific incorporation into proteins via amber codon suppression in Escherichia coli and mammalian cells. Among five ACTKs investigated, N-methylpyrroletetrazole-lysine (mPyTK) was found to give robust and site-selective photo-cross-linking reactivity in E...
April 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28421981/validation-of-max-aqueous-extraction-on-veratox-%C3%A2-for-total-aflatoxin-elisa-test-kit
#17
Brooke E Roman, Dana Driksna, Mohamed M Abouzied, Frank Klein, Jennifer Rice
Neogen Corp. (Lansing, MI) has developed a common aqueous extraction method for the detection of mycotoxins in the ELISA or lateral flow format. The Veratox(®) for Total Aflatoxin ELISA extraction method uses a MAX 2 extraction packet and water in replacement of traditionally used organic solvents. Veratox for Total Aflatoxin has a detection range of 5–50 ppb neat or up to 300 ppb with dilution. The kit development focused on superior cross-reactivity, ability to accurately detect naturally contaminated samples, and utilization of an aqueous extraction method...
April 18, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28420423/a-comprehensive-evaluation-of-an-elisa-for-the-diagnosis-of-the-two-most-common-ascarids-in-chickens-using-plasma-or-egg-yolks
#18
Gürbüz Daş, Mark Hennies, Birgit Sohnrey, Shayan Rahimian, Kalyakorn Wongrak, Manuel Stehr, Matthias Gauly
BACKGROUND: Classical faecal egg counts (FEC) provide less reliable diagnostic information for nematode infections in chickens. We developed an ELISA based on Ascaridia galli antigens and tested two hypotheses, as follows: (i) IgY antibodies developed against A. galli will also be useful to identify Heterakis gallinarum infections, and (ii) circulating antibodies stored in egg yolks are as good as plasma samples, so a non-invasive diagnosis is possible. The aim of this study, therefore, was to compare the diagnostic accuracy of the ELISA system with FEC, using both plasma and egg yolks from experimentally infected hens...
April 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28419225/epitope-mapping-of-a-new-anti-tn-antibody-detecting-gastric-cancer-cells
#19
Nina Persson, Nicolai Stuhr-Hansen, Christian Risinger, Stefan Mereiter, António Polónia, Karol Polom, András Kovács, Franco Roviello, Celso Reis, Charlotte Welinder, Lena Danielsson, Bo Jansson, Ola Blixt
Here we introduce a novel scFv antibody, G2-D11, specific for two adjacent Tn-antigens (GalNAc -Ser/Thr) binding equally to three dimeric forms of the epitope, Ser-Thr, Thr-Thr and Thr-Ser. Compared to other anti-Tn reagents, the binding of G2-D11 is minimally influenced by the peptide structure, which indicates a high degree of carbohydrate epitope dominance and a low influence from the protein backbone. With a high affinity (KDapp = 1.3 × 10-8M) and no cross-reactivity to either sialyl-Tn epitope or blood group A antigens, scFv G2-D11 is an excellent candidate for a well-defined anti-Tn-antigen reagent...
April 13, 2017: Glycobiology
https://www.readbyqxmd.com/read/28418292/lack-of-durable-cross-neutralizing-antibodies-against-zika-virus-from-dengue-virus-infection
#20
Matthew H Collins, Eileen McGowan, Ramesh Jadi, Ellen Young, Cesar A Lopez, Ralph S Baric, Helen M Lazear, Aravinda M de Silva
Cross-reactive antibodies elicited by dengue virus (DENV) infection might affect Zika virus infection and confound serologic tests. Recent data demonstrate neutralization of Zika virus by monoclonal antibodies or human serum collected early after DENV infection. Whether this finding is true in late DENV convalescence (>6 months after infection) is unknown. We studied late convalescent serum samples from persons with prior DENV or Zika virus exposure. Despite extensive cross-reactivity in IgG binding, Zika virus neutralization was not observed among primary DENV infections...
May 2017: Emerging Infectious Diseases
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