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https://www.readbyqxmd.com/read/28627139/direct-electro-oxidation-of-dimethyl-ether-on-pt-cu-nanochains
#1
Bar Gavriel, Ronit Sharabi, Lior Elbaz
In this work, new catalyst for the direct electro-oxidation of dimethyl ether (DME) was synthesized and studied using an array of techniques. One of the most prominent catalysts for this reaction, platinum copper alloy (PtCu), was synthesized in an easy and low cost approach. Structural characterizations such as X-ray diffraction (XRD), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and elemental analysis revealed that the synthesized PtCu nanoparticles (3 nm on average), formed homogeneous NanoChains without aggregation of metallic platinum or copper...
June 18, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28622360/the-seroprevalence-of-west-nile-virus-in-israel-a-nationwide-cross-sectional-study
#2
Ravit Bassal, Tamy Shohat, Zalman Kaufman, Batya Mannasse, Eilat Shinar, Doron Amichay, Mira Barak, Anat Ben-Dor, Adina Bar Haim, Daniel Cohen, Ella Mendelson, Yaniv Lustig
West Nile Virus (WNV) is endemic in Israel, affecting yearly 40-160 individuals. Israel is located on a central migratory path between Africa and Eurasia and most West Nile Fever (WNF) cases reported in recent years were among residents of the coastal plain. The aim of the study was to evaluate the seroprevalence of WNV among the Israeli population and to assess correlates for WNV infection. A cross-sectional nationwide serologic survey was conducted using 3,145 serum samples collected by the national Israeli serum bank during 2011-2014, representing all age and population groups in Israel...
2017: PloS One
https://www.readbyqxmd.com/read/28620922/supraspinal-inhibitory-effects-of-chimeric-peptide-mcrt-on-gastrointestinal-motility-in-mice
#3
Chunbo He, Hailan Li, Jing Zhang, Yanping Kang, Fang Jia, Shouliang Dong, Lanxia Zhou
OBJECTIVES: Chimeric peptide MCRT, based on morphiceptin and PFRTic-NH2 , was a bifunctional ligand of μ- and δ-opioid receptors (MOR-DOR) and produced potent analgesia in tail-withdrawal test. The study focused on the supraspinal effects of morphiceptin, PFRTic-NH2 and MCRT on gastrointestinal motility. Moreover, opioid receptor antagonists, naloxone (non-selective), cyprodime (MOR selective) and naltrindole (DOR selective) were utilized to explore the mechanisms. METHODS: Intracerebroventricular administration was achieved via the implanted cannula...
June 16, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28616656/accuracy-of-neutrophil-gelatinase-associated-lipocalin-for-acute-kidney-injury-diagnosis-in-children-systematic-review-and-meta-analysis
#4
REVIEW
Luís Taddeo Filho, Antonio Jose Grande, Tamy Colonetti, Éverton Simon Possamai Della, Maria Inês da Rosa
OBJECTIVE: To estimate the accuracy of Neutrophil Gelatinase-Associated Lipocalin (NGAL) as a biomarker for acute kidney injury (AKI) in children. METHODS: A systematic review of the literature was performed. The review protocol was registered at PROSPERO (CRD 42015024153). We conducted searches in the following databases: Medline (PubMed), LILACS (BVS), SCOPUS (Elsevier), Embase (OVID), Cochrane Central Register of Controlled Trials (CENTRAL), Biomed Central, and ISI Web of Science, from January 1990 to October 2016...
June 14, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28614430/effects-of-the-application-of-therapeutic-massage-in-children-with-cancer-a-systematic-review
#5
Juan Rodríguez-Mansilla, Blanca González-Sánchez, Silvia Torres-Piles, Jorge Guerrero Martín, María Jiménez-Palomares, Macarena Núñez Bellino
Objective: to learn about the effects of the use of therapeutic massage in children with cancer. Method: systematic review of controlled clinical trials The search was conducted in November 2014 in the following databases: Pubmed, CSIC, Dialnet, Scopus, Cochrane and PEDro. Inclusion criteria were: clinical trials, published in English or Spanish, analyzing the effects of massage on the different stages and types of childhood cancer (between 1 and 18 years old). Results: of 1007 articles found, 7 met the inclusion criteria...
June 8, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28614421/zero-calcium-score-as-a-filter-for-further-testing-in-patients-admitted-to-the-coronary-care-unit-with-chest-pain
#6
Luis Cláudio Lemos Correia, Fábio P Esteves, Manuela Carvalhal, Thiago Menezes Barbosa de Souza, Nicole de Sá, Vitor Calixto de Almeida Correia, Felipe Kalil Beirão Alexandre, Fernanda Lopes, Felipe Ferreira, Márcia Noya-Rabelo
Background: The accuracy of zero coronary calcium score as a filter in patients with chest pain has been demonstrated at the emergency room and outpatient clinics, populations with low prevalence of coronary artery disease (CAD). Objective: To test the gatekeeping role of zero calcium score in patients with chest pain admitted to the coronary care unit (CCU), where the pretest probability of CAD is higher than that of other populations. Methods: Patients underwent computed tomography for calcium scoring, and obstructive CAD was defined by a minimum 70% stenosis on invasive angiography...
June 12, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28614255/identification-of-micrornas-as-diagnostic-biomarkers-for-acute-myocardial-infarction-in-asian-populations-a-systematic-review-and-meta-analysis
#7
Qian Wang, Junfen Ma, Zhiyun Jiang, Fan Wu, Jiedan Ping, Liang Ming
BACKGROUND: Acute myocardial infarction (AMI) is one of the leading causes of mortality and morbidity worldwide. Recently, several studies have revealed the diagnostic value of circulating microRNAs (miRNAs) for AMI detection. However, the diagnostic capacity of miRNAs for AMI is still controversial due to the inconsistent results among studies. METHODS: A systematic literature search was conducted to retrieve relevant articles in PubMed and other databases up to February 2017...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28607003/p21-maintains-senescent-cell-viability-under-persistent-dna-damage-response-by-restraining-jnk-and-caspase-signaling
#8
Reut Yosef, Noam Pilpel, Nurit Papismadov, Hilah Gal, Yossi Ovadya, Ezra Vadai, Stav Miller, Ziv Porat, Shifra Ben-Dor, Valery Krizhanovsky
Cellular senescence is a permanent state of cell cycle arrest that protects the organism from tumorigenesis and regulates tissue integrity upon damage and during tissue remodeling. However, accumulation of senescent cells in tissues during aging contributes to age-related pathologies. A deeper understanding of the mechanisms regulating the viability of senescent cells is therefore required. Here, we show that the CDK inhibitor p21 (CDKN1A) maintains the viability of DNA damage-induced senescent cells. Upon p21 knockdown, senescent cells acquired multiple DNA lesions that activated ataxia telangiectasia mutated (ATM) and nuclear factor (NF)-κB kinase, leading to decreased cell survival...
June 12, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28605939/real-world-treatment-outcomes-in-patients-with-metastatic-merkel-cell-carcinoma-treated-with-chemotherapy-in-the-usa
#9
C Lance Cowey, Lisa Mahnke, Janet Espirito, Christoph Helwig, Dina Oksen, Murtuza Bharmal
AIM: This retrospective study of patients in the USA with metastatic Merkel cell carcinoma (mMCC) aimed to assess patient responses to second-line and later (2L+) and first-line (1L) chemotherapy. PATIENTS & METHODS: Out of 686 patients with MCC identified in The US Oncology Network, 20 and 67 patients with mMCC qualified for the 2L+ and 1L study, respectively; the primary analysis population was restricted to immunocompetent patients. RESULTS: In the 2L+ primary analysis population, objective response rate (ORR) was 28...
June 13, 2017: Future Oncology
https://www.readbyqxmd.com/read/28602640/design-and-synthesis-of-novel-%C3%AE-opioid-receptor-agonists-with-an-azatricyclodecane-skeleton-for-improving-blood-brain-barrier-penetration
#10
Yoshikazu Watanabe, Kohei Hayashida, Daisuke Saito, Toshihiro Takahashi, Junichi Sakai, Eriko Nakata, Takashi Kanda, Takashi Iwai, Shigeto Hirayama, Hideaki Fujii, Tomio Yamakawa, Hiroshi Nagase
We designed and synthesized novel δ opioid receptor (DOR) agonists 3a-i with an azatricyclodecane skeleton, which was a novel structural class of DOR agonists. Among them, 3b exhibited high values of binding affinity and potent agonistic activity for the DOR that were approximately equivalent to those of 2 which bore an oxazatricyclodecane skeleton. In vitro assays using the blood-brain barrier (BBB) permeability test kit supported the idea that 3b achieved an excellent BBB permeability by converting an oxygen atom of 2 to a carbon atom (methylene group) in the core skeleton...
May 26, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28598626/co2-hydration-shell-structure-and-transformation
#11
Samual R Zukowski, Pavlin D Mitev, Kersti Hermansson, Dor Ben-Amotz
The hydration-shell of CO2 is characterized using Raman multivariate curve resolution (Raman-MCR) spectroscopy combined with ab initio molecular dynamics (AIMD) vibrational density of states simulations, to validate our assignment of the experimentally observed high-frequency OH band to a weak hydrogen bond between water and CO2. Our results reveal that while the hydration-shell of CO2 is highly tetrahedral, it is also occasionally disrupted by the presence of entropically stabilized defects associated with the CO2-water hydrogen bond...
June 15, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28597073/beta-cell-heterogeneity-an-evolving-concept
#12
REVIEW
Dana Avrahami, Agnes Klochendler, Yuval Dor, Benjamin Glaser
Beta cells are primarily defined by their ability to produce insulin and secrete it in response to appropriate stimuli. It has been known for some time, however, that beta cells are not functionally identical to each other and that the rates of insulin synthesis and release differ from cell to cell, although the functional significance of this variability remains unclear. Recent studies have used heterogeneous gene expression to isolate and evaluate different subpopulations of beta cells and to demonstrate alterations in these subpopulations in diabetes...
June 8, 2017: Diabetologia
https://www.readbyqxmd.com/read/28596506/by-up-regulating-%C3%AE-and-%C3%AE-opioid-receptors-neuron-restrictive-silencer-factor-knockdown-promotes-neurological-recovery-after-ischemia
#13
Hui-Min Liang, Li-Jiao Geng, Xiao-Yan Shi, Chao-Gang Zhang, Shu-Yan Wang, Guang-Ming Zhang
We investigated the effects of neuron-restrictive silencer factor (NRSF) on proliferation of endogenous nerve stem cells (NSCs) and on μ- and δ-opioid receptor (MOR/DOR) expression in rats after cerebral ischemia. Among 100 rats subjected to cerebral ischemia, 20 rats were transfected with NRSF shRNA, and the remaining 80 were randomly assigned to normal, sham, model, and negative control (NC) groups. On days 7, 14, and 28 after ischemia and reperfusion, neurological function scores were assigned and a step-down passive avoidance test was conducted...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28595876/a-diagnostic-accuracy-meta-analysis-of-ct-and-mri-for-the-evaluation-of-small-bowel-crohn-disease
#14
Wenhong Liu, Jincai Liu, Wenlian Xiao, Guanghua Luo
RATIONALE AND OBJECTIVES: This study aimed to evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) and computed tomography (CT) in assessing small bowel (SB) Crohn disease (CD). MATERIALS AND METHODS: We systematically searched PubMed, Elsevier, ScienceDirect, Karger, Web of Science, Wiley Online Library, and Springer for studies in which CT or MRI were evaluated to assess SB CD. Bivariate random effect meta-analytic methods were used to estimate pooled sensitivity, specificity, and receiver operating characteristic curves...
June 5, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28593459/impact-of-surgery-and-surveillance-in-the-management-of-branch-duct-intraductal-papillary-mucinous-neoplasms-of-the-pancreas-according-to-fukuoka-guidelines-the-bologna-experience
#15
Riccardo Casadei, Claudio Ricci, Giovanni Taffurelli, Carlo Alberto Pacilio, Marina Migliori, Francesco Minni
The objective of the study was to evaluate the Fukuoka guidelines in indicating the proper management for recognising the risk factors of malignancy. Data of patients with branch duct intraductal papillary mucinous neoplasms who underwent pancreatic resection or surveillance according to the Fukuoka risk parameters were collected in a prospective database. The clinical outcome (development of pancreatic cancer, overall and disease-specific survival) and pathological results were evaluated in all patients and in resected cases, respectively...
June 7, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28592104/-loop-mediated-isothermal-amplification-technique-in-the-diagnosis-of-hepatitis-b-virus-infection-a-meta-analysis
#16
H Y Zhou, C Chen, X N Li, X J Ma
Objective: To evaluate the diagnostic performance of Loop-mediated isothermal amplification (LAMP) in the diagnosis of Hepatitis B Virus (HBV) infection using Meta-analysis. Methods: Literatures about LAMP in the diagnosis of HBV throughPubMed database of the National Library of Medicine, the EMBASE database of the Dutch Medical Digest, the Cochrane Clinical Trials Database, China Science Periodical Database, CSPD and the China National Knowledge Infrastructure (CNKI) were searched from 2000 to 2016, and the Language limited to Chinese and English...
June 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28591350/factors-associated-with-chronic-back-pain-in-adults-in-brazil
#17
Deborah Carvalho Malta, Max Moura de Oliveira, Silvânia Suely Caribé de Araújo Andrade, Waleska Teixeira Caiaffa, Maria de Fatima Marinho de Souza, Regina Tomie Ivata Bernal
OBJECTIVE: To identify associations of chronic back pain with sociodemographic characteristics, lifestyles, body mass index, self-reported chronic diseases and health assessment, according to sex. METHODS: We analyzed data from the 2013 National Health Survey, estimated the prevalence and their respective 95% confidence intervals (95%CI) of chronic back pain, according to selected variables and performed adjustment by age and education. RESULTS: 18...
June 1, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28588174/c-reactive-protein-crp-as-a-single-biomarker-for-diagnosis-of-neonatal-sepsis-a-comprehensive-meta-analysis
#18
K H Shabuj, J Hossain, S C Moni, S K Dey
Neonatal sepsis (NS) is a life-threatening disorder and an important cause of morbidity and mortality in neonates. Blood culture, the gold standard for diagnosis of neonatal sepsis is costly, not available at all centres and test result not readily available. CRP is low cost diagnostic test for neonatal sepsis which is possible to perform at all centres and test result is easily available. We aimed to evaluate the usefulness of C-reactive protein (CRP) measurement to identify neonatal sepsis. We conducted this meta-analysis to investigate the diagnostic accuracy of the CRP in neonatal sepsis...
April 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28584205/effects-of-surgical-ventricular-restoration-on-left-ventricular-shape-size-and-function-for-left-ventricular-anterior-aneurysm
#19
Yao Wang, Chang-Qing Gao, Gang Wang, Yan-Song Shen
BACKGROUND: Surgical ventricular restoration (SVR) has been performed to treat left ventricular (LV) aneurysm. However, there is limited analysis of changes in LV shape. This study aimed to evaluate the changes in LV shape induced by SVR and the effects of SVR on LV size and function for LV aneurysm. METHODS: Between April 2006 and March 2015, 18 patients with dyskinetic (dyskinetic group) and 12 patients with akinetic (akinetic group) postinfarction LV anterior aneurysm receiving SVR with the Dor procedure at Chinese People's Liberation Army General Hospital were enrolled in this study...
June 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28579933/changes-in-admission-to-long-term-care-institutions-in-the-netherlands-comparing-two-cohorts-over-the-period-1996-1999-and-2006-2009
#20
Peter Alders, Hannie C Comijs, Dorly J H Deeg
Using data from two cohorts, we examine to what extent a decline in institutional care in the Netherlands is associated with changes in the need for care and/or societal factors. We compared older adults, aged 65-89, who were admitted to a long-term care (LTC) institution in the period 1996-1999 and 2006-2009. Using the Andersen model, we tested per block of predisposing, enabling and need factors, which factors were significant predictors of admission to institutional care. With a Blinder-Oaxaca decomposition regression, we decomposed the difference in admission to an LTC institution between the period 1996-1999 and 2006-2009 into a part that is due to differences in health needs and other factors such as effect of policy, social values, and technology...
June 2017: European Journal of Ageing
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