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https://www.readbyqxmd.com/read/28820721/risk-factors-associated-with-blood-exposure-for-sporadic-hepatitis-e-in-dhaka-bangladesh
#1
Hossain M S Sazzad, Stephen P Luby, Alain B Labrique, Saleem Kamili, Tonya M Hayden, Nourine A Kamili, Chong-Gee Teo, Emily S Gurley
Fecal contamination of drinking water is associated with large hepatitis E virus (HEV) outbreaks of genotypes 1 and 2 in endemic areas. Sporadic transmission of HEV genotypes 3 and 4 in high-income countries has been associated with exposure to blood and animal contact. The objective of the study was to identify the risk factors for hepatitis E and the genotype(s) causing sporadic hepatitis E in Dhaka, Bangladesh. We selected, from a diagnostic center in Dhaka between November 2008 and November 2009, cases presenting with jaundice and anti-HEV IgM antibodies and age-matched controls were defined as those with no history of jaundice and normal blood test results...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820222/quasi-zero-dimensional-cobalt-doped-ceo2-dots-on-pd-catalysts-for-alcohol-electro-oxidation-with-enhanced-poisoning-tolerance
#2
Qiang Tan, Haiyan Zhu, Shengwu Guo, Yuanzhen Chen, Tao Jiang, Chengyong Shu, Shaokun Chong, Benjamin Hultman, Yongning Liu, Gang Wu
Deactivation of an anode catalyst resulting from the poisoning of COad-like intermediates is one of the major problems for methanol and ethanol electro-oxidation reactions (MOR & EOR), and remains a grand challenge towards achieving high performance for direct alcohol fuel cells (DAFCs). Herein, we report a new approach for the preparation of ultrafine cobalt-doped CeO2 dots (Co-CeO2, d = 3.6 nm), which can be an effective anti-poisoning promoter for Pd catalysts towards MOR and EOR in alkaline media. Compared to Pd/CeO2 and pure Pd, the hybrid Pd/Co-CeO2 nanocomposite catalyst exhibited a much enhanced activity and remarkable anti-poisoning ability for both MOR and EOR...
August 18, 2017: Nanoscale
https://www.readbyqxmd.com/read/28818835/src-dependent-phosphorylation-of-%C3%AE-opioid-receptor-at-tyr-336-modulates-opiate-withdrawal
#3
Lei Zhang, Cherkaouia Kibaly, Yu-Jun Wang, Chi Xu, Kyu Young Song, Patrick W McGarrah, Horace H Loh, Jing-Gen Liu, Ping-Yee Law
Opiate withdrawal/negative reinforcement has been implicated as one of the mechanisms for the progression from impulsive to compulsive drug use. Increase in the intracellular cAMP level and protein kinase A (PKA) activities within the neurocircuitry of addiction has been a leading hypothesis for opiate addiction. This increase requires the phosphorylation of μ-opioid receptor (MOR) at Tyr(336) by Src after prolonged opiate treatment in vitro Here, we report that the Src-mediated MOR phosphorylation at Tyr(336) is a prerequisite for opiate withdrawal in mice...
August 17, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28817673/the-plasmid-encoded-ipf-and-klf-fimbriae-display-different-expression-and-varying-roles-in-the-virulence-of-salmonella-enterica-serovar-infantis-in-mouse-vs-avian-hosts
#4
Gili Aviv, Laura Elpers, Svetlana Mikhlin, Helit Cohen, Shaul Vitman Zilber, Guntram A Grassl, Galia Rahav, Michael Hensel, Ohad Gal-Mor
Salmonella enterica serovar Infantis is one of the prevalent Salmonella serovars worldwide. Different emergent clones of S. Infantis were shown to acquire the pESI virulence-resistance megaplasmid affecting its ecology and pathogenicity. Here, we studied two previously uncharacterized pESI-encoded chaperone-usher fimbriae, named Ipf and Klf. While Ipf homologs are rare and were found only in S. enterica subspecies diarizonae and subspecies VII, Klf is related to the known K88-Fae fimbria and klf clusters were identified in seven S...
August 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28817616/patterns-of-statin-non-prescription-in-patients-with-established-coronary-artery-disease-a-report-from-a-contemporary-multicenter-japanese-pci-registry
#5
Mitsuaki Sawano, Shun Kohsaka, Takayuki Abe, Taku Inohara, Yuichiro Maekawa, Ikuko Ueda, Koichiro Sueyoshi, Masahiro Suzuki, Shigetaka Noma, Yohei Numasawa, Hiroaki Miyata, Keiichi Fukuda, Kim G Smolderen, John A Spertus
Statin therapy is regarded as an effective medication to reduce cardiovascular events in patients at higher risk for future incidence of coronary artery disease. However, very few studies have been conducted to examine its implementation in non-Western real-world practice. In this study, we sought to describe statin prescription patterns in relation to patient characteristics in a Japanese multicenter percutaneous coronary intervention (PCI) registry as a foundation for quality improvement. We studied 15,024 patients that were prospectively enrolled in the Japan Cardiovascular Database-Keio interhospital Cardiovascular Study Registry from January 2009 to August 2014...
2017: PloS One
https://www.readbyqxmd.com/read/28817416/nicotinic-modulation-of-descending-pain-control-circuitry
#6
Iboro C Umana, Claire A Daniele, Brooke A Miller, Keith Gallagher, Meghan A Brown, Chandrika Abburi, Peggy Mason, Daniel S McGehee
Along with the well-known rewarding effects, activation of nicotinic acetylcholine receptors (nAChRs) can also relieve pain, and some nicotinic agonists have analgesic efficacy similar to opioids. A major target of analgesic drugs is the descending pain modulatory pathway, including the ventrolateral periaqueductal gray (vlPAG) and the rostral ventromedial medulla (RVM). Although activating nAChRs within this circuitry can be analgesic, little is known about the subunit composition and cellular effects of these receptors, particularly within the vlPAG...
July 3, 2017: Pain
https://www.readbyqxmd.com/read/28817238/stakeholders-in-psychiatry-and-their-attitudes-toward-receiving-pertinent-and-incident-findings-in-genomic-research
#7
Anna Sundby, Merete W Boolsen, Kristoffer S Burgdorf, Henrik Ullum, Thomas F Hansen, Anna Middleton, Ole Mors
Increasingly more psychiatric research studies use whole genome sequencing or whole exome sequencing. Consequently, researchers face difficult questions, such as which genomic findings to return to research participants and how. This study aims to gain more knowledge on the attitudes among potential research participants and health professionals toward receiving pertinent and incidental findings. A cross-sectional online survey was developed to investigate the attitudes among research participants toward receiving genomic findings...
August 17, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28815386/genomic-characterization-of-a-novel-calicivirus-fhmcv-2012-from-baitfish-in-the-usa
#8
Sunil Kumar Mor, Nicholas B D Phelps, Terry Fei Fan Ng, Kuttichantran Subramaniam, Alexander Primus, Anibal G Armien, Rebekah McCann, Corey Puzach, Thomas B Waltzek, Sagar M Goyal
During regulatory sampling of fathead minnows (Pimephales promelas), a novel calicivirus was isolated from homogenates of kidney and spleen inoculated into bluegill fry (BF-2) cells. Infected cell cultures exhibiting cytopathic effects were screened by PCR-based methods for selected fish viral pathogens. Illumina HiSeq next generation sequencing of the total RNA revealed a novel calicivirus genome that showed limited protein sequence similarity to known homologs in a BLASTp search. The complete genome of this fathead minnow calicivirus (FHMCV) is 6564 nt long, encoding a polyprotein of 2114 aa in length...
August 16, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28807672/pharmacological-characterization-of-novel-synthetic-opioids-nso-found-in-the-recreational-drug-marketplace
#9
REVIEW
Michael H Baumann, Susruta Majumdar, Valerie Le Rouzic, Amanda Hunkele, Rajendra Uprety, Xi Ping Huang, Jin Xu, Bryan L Roth, Ying-Xian Pan, Gavril W Pasternak
Novel synthetic opioids (NSO) are increasingly encountered in illicit heroin and counterfeit pain pills. Many NSO are resurrected from older biomedical literature or patent applications, so limited information is available about their biological effects. Here we examined the pharmacology of three structurally-distinct NSO found in the recreational drug market: N-(1-(2-phenylethyl)-4-piperidinyl)-N-phenylbutyramide (butyrylfentanyl), 3,4-dichloro-N-[(1R,2R)-2-(dimethylamino)cyclohexyl]-N-methylbenzamide (U-47700) and 1-cyclohexyl-4-(1,2-diphenylethyl)piperazine (MT-45)...
August 11, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28806365/associations-between-perceived-race-based-discrimination-and-contraceptive-use-among-women-veterans-in-the-ecuun-study
#10
Serena MacDonald, Leslie R M Hausmann, Florentina E Sileanu, Xinhua Zhao, Maria K Mor, Sonya Borrero
OBJECTIVE: To describe perceived race-based discrimination in Veterans Affairs (VA) health care settings and assess its associations with contraceptive use among a sample of women Veterans. METHODOLOGY: This study used data from a national telephone survey of women Veterans aged 18-44 receiving health care in VA who were at risk of unintended pregnancy. Participants were asked about their perceptions of race-based discrimination while seeking VA health care and about their contraceptive use at last heterosexual intercourse...
September 2017: Medical Care
https://www.readbyqxmd.com/read/28802104/results-of-the-second-national-forest-soil-inventory-in-germany-interpretation-of-level-and-stock-profiles-for-pcdd-f-and-pcb-in-terms-of-vegetation-and-humus-type
#11
Marchela Pandelova, Bernhard Henkelmann, Bernd M Bussian, Karl-Werner Schramm
Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) were detected in 86 humic topsoil layers and in a subset of 11 randomly selected top mineral forest soils at the depths of 0-5cm and 5-10cm collected from different federal states of Germany. The distribution of these persistent organic pollutants (POPs) in humic topsoils with respect to vegetation cover (coniferous vs. deciduous vs. mixed), total organic carbon (TOC), altitude and latitude data was investigated...
August 9, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28799325/comparison-between-next-generation-and-sanger-based-sequencing-for-the-detection-of-transmitted-drug-resistance-mutations-among-recently-infected-hiv-1-patients-in-israel-2000-2014
#12
Roy Moscona, Daniela Ram, Marina Wax, Efrat Bucris, Itzchak Levy, Ella Mendelson, Orna Mor
INTRODUCTION: Transmitted drug-resistance mutations (TDRM) may hamper successful anti-HIV-1 therapy and impact future control of the HIV-1 epidemic. Recently infected, therapy-naïve individuals are best suited for surveillance of such TDRM. In this study, TDRM, detected by next-generation sequencing (NGS) were compared to those identified by Sanger-based population sequencing (SBS) in recently infected HIV-1 patients. METHODS: Historical samples from 80 recently infected HIV-1 patients, diagnosed between 2000 and 2014, were analysed by MiSeq (NGS) and ABI (SBS)...
August 11, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28798303/understanding-the-molecular-basis-of-agonist-antagonist-mechanism-of-human-mu-opioid-receptor-through-gaussian-accelerated-molecular-dynamics-method
#13
Yeng-Tseng Wang, Yang-Hsiang Chan
The most powerful analgesic and addictive properties of opiate alkaloids are mediated by the μ opioid receptor (MOR). The MOR has been extensively investigated as a drug target in the twentieth century, with numerous compounds of varying efficacy being identified. We employed molecular dynamics and Gaussian accelerated molecular dynamics techniques to identify the binding mechanisms of MORs to BU72 (agonist) and β-funaltrexamine (antagonist). Our approach theoretically suggests that the 34 residues (Lys209-Phe221 and Ile301-Cys321) of the MORs were the key regions enabling the two compounds to bind to the active site of the MORs...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797641/b2-kinin-receptors-in-the-dorsal-periaqueductal-gray-are-implicated-in-the-panicolytic-like-effect-of-opiorphin
#14
Caio César Sestile, Jhonatan Christian Maraschin, Marcel Pereira Rangel, Rosangela Getirana Santana, Hélio Zangrossi, Frederico Guilherme Graeff, Elisabeth Aparecida Audi
Reported results have shown that the pentapeptide opiorphin inhibits oligopeptidases that degrade brain neuropeptides, and has analgesic and antidepressant effects in experimental animals, without either tolerance or dependency after chronic administration. In a previous study we showed that opiorphin has a panicolytic-like effect in the dorsal periaqueductal gray (dPAG) electrical stimulation test (EST), mediated by the μ-opioid receptor (MOR). This study further analyzes the mechanism of opiorphin panicolytic action, using the EST and drug injection inside the dPAG...
August 7, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28796483/placement-of-hydroxy-moiety-on-pendant-of-peptidomimetic-scaffold-modulates-mu-and-kappa-opioid-receptor-efficacy
#15
Aubrie A Harland, Irina D Pogozheva, Nicholas W Griggs, Tyler J Trask, John R Traynor, Henry I Mosberg
In an effort to expand the structure-activity relationship (SAR) studies of a series of mixed-efficacy opioid ligands, peptidomimetics that incorporate methoxy and hydroxy groups around a benzyl or 2-methylindanyl pendant on a tetrahydroquinoline (THQ) core of the peptidomimetics were evaluated. Compounds containing a methoxy or hydroxy moiety in the o- or m- positions increased binding affinity to the kappa opioid receptor (KOR), whereas compounds containing methoxy or hydroxy groups in the p- position decreased KOR affinity and reduced or eliminated efficacy at the mu opioid receptor (MOR)...
August 10, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28796058/posttransplantation-anemia-in-kidney-transplant-recipients-a-retrospective-cohort-study
#16
Anat Gafter-Gvili, Irit Ayalon-Dangur, Lisa Cooper, Tzippy Shochat, Ruth Rahamimov, Uzi Gafter, Eytan Mor, Alon Grossman
We sought to assess the frequency and predictors of early and late posttransplantation anemia (PTA). In addition, we aimed to assess the outcomes of patients with anemia and to assess the impact of anemia on mortality, graft function, and graft failure.Patients who underwent kidney transplantation in a single center during a 4-year period were included. Predictors associated with the development of anemia at 6 months (early PTA) or 2 years (late PTA) were evaluated in a univariate and multivariate analyses...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28795389/anti-nociceptive-effect-of-patchouli-alcohol-involving-attenuation-of-cyclooxygenase-2-and-modulation-of-mu-opioid-receptor
#17
Xuan Yu, Xin-Pei Wang, Xiao-Jin Yan, Jing-Fei Jiang, Fan Lei, Dong-Ming Xing, Yue-Ying Guo, Li-Jun Du
OBJECTIVE: To explore the anti-nociceptive effect of patchouli alcohol (PA), the essential oil isolated from Pogostemon cablin (Blanco) Bent, and determine the mechanism in molecular levels. METHODS: The acetic acid-induced writhing test and formalin-induced plantar injection test in mice were employed to confifirm the effect in vivo. Intracellular calcium ion was imaged to verify PA on mu-opioid receptor (MOR). Cyclooxygenase 2 (COX2) and MOR of mouse brain were expressed for determination of PA's target...
August 9, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28790195/the-tyrosine-phosphatase-shp-1-promotes-t-cell-adhesion-by-activating-the-adaptor-protein-crkii-in-the-immunological-synapse
#18
Inbar Azoulay-Alfaguter, Marianne Strazza, Michael Peled, Hila K Novak, James Muller, Michael L Dustin, Adam Mor
The adaptor protein CrkII regulates T cell adhesion by recruiting the guanine nucleotide exchange factor C3G, an activator of Rap1. Subsequently, Rap1 stimulates the integrin LFA-1, which leads to T cell adhesion and interaction with antigen-presenting cells (APCs). The adhesion of T cells to APCs is critical for their proper function and education. The interface between the T cell and the APC is known as the immunological synapse. It is characterized by the specific organization of proteins that can be divided into central supramolecular activation clusters (c-SMACs) and peripheral SMACs (p-SMACs)...
August 8, 2017: Science Signaling
https://www.readbyqxmd.com/read/28783751/animal-related-factors-associated-with-moderate-to-severe-diarrhea-in-children-younger-than-five-years-in-western-kenya-a-matched-case-control-study
#19
Anne Conan, Ciara E O'Reilly, Eric Ogola, J Benjamin Ochieng, Anna J Blackstock, Richard Omore, Linus Ochieng, Fenny Moke, Michele B Parsons, Lihua Xiao, Dawn Roellig, Tamer H Farag, James P Nataro, Karen L Kotloff, Myron M Levine, Eric D Mintz, Robert F Breiman, Sarah Cleaveland, Darryn L Knobel
BACKGROUND: Diarrheal disease remains among the leading causes of global mortality in children younger than 5 years. Exposure to domestic animals may be a risk factor for diarrheal disease. The objectives of this study were to identify animal-related exposures associated with cases of moderate-to-severe diarrhea (MSD) in children in rural western Kenya, and to identify the major zoonotic enteric pathogens present in domestic animals residing in the homesteads of case and control children...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28782731/ag-au-pt-trimetallic-nanoparticles-with-defects-preparation-characterization-and-electrocatalytic-activity-in-methanol-oxidation
#20
Kontee Thongthai, Phakkhananan Pakawanit, Narong Chanlek, Jun-Hyun Kim, Supon Ananta, Laongnuan Srisombat
Two series of Agx/Au/Pty trimetallic nanoparticles (AgxAu1Pt2 with x ranging from 1 to 5 and Ag4Au1Pty with y ranging from 1 to 3) were prepared by a sequential chemical reduction method that involved the deposition of Pt on preformed Ag/Au core-shell particles by systematically controlling the amount of Ag, Au, and Pt metal precursor solutions. The structural changes (the diameters and increased surface roughness from the defective features) and absorption patterns (the significant reduction of the peak intensities) of the nanoparticles examined with TEM and UV-Vis spectroscopy indicated the selective incorporation of Pt on the Ag/Au nanoparticles regardless of their compositions...
August 7, 2017: Nanotechnology
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