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Results 351 - 400 of 2387
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Kahan Richard S - - 2013
Objectives To assess adoption of endodontic nickel-titanium rotary technology (NiTi) by community and hospital dental clinicians within Wales and identify factors that may restrict uptake.Design Postal questionnaire.Setting Community and hospital-based dentists in Wales.Methods Community and hospital-based dentists with a remit for provision of restorative dentistry (community dental setting = 32; ...
Chandrasekhara Vinay - - 2013
BACKGROUND: Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) have transformed the ability to endoscopically remove superficial lesions throughout the gastrointestinal tract. The purpose of this study was to determine the properties and safety of a novel gel designed for the purpose of submucosal injection for EMR and ESD. ...
Jeon Hwan-Jin - - 2013
We describe a highly efficient method for fabricating a variety of complex 3D nano-patterns from a single master pattern using secondary sputtering lithography, which is a 10 nm scale patterning method that we have developed. A rapid etching rate in the bottom part of the PS pillar during the RIE ...
Witzel Isabell - - 2013
PURPOSE: The androgen receptor (AR) is intensively discussed as a prognostic and/or predictive marker in breast cancer patients. METHODS: We evaluated the value of AR mRNA expression with the Affymetrix HG-U 133A array in 3 different cohorts: a cohort of breast cancer patients who received adjuvant treatment (cohort A; n = 165), ...
N'koua-M'bon Jean-Bernard - - 2013
T4 breast cancers are a heterogeneous group. We conducted this study to analyze the differences between inflammatory and non-inflammatory T4 breast cancers. In a cross-sectional descriptive study over a period ranging from 2007 to 2010, we collected patients with T4 breast cancer. These patients were divided into two groups: a group of inflammatory ...
Ponraj Paramasivan - - 2013
Fluorescent pseudomonads catabolize glucose simultaneously by two different pathways, namely, the oxidative pathway in periplasm and the phosphorylative pathway in cytoplasm. This study provides evidence for the role of glucose metabolism in the regulation of pyoverdine synthesis in Pseudomonas putida S11. We have characterized the influence of direct oxidation of ...
Sugita Rinya - - 2013
Tebipenem pivoxil, an oral carbapenem antibiotic for pediatric use, exhibits excellent clinical effects on acute otitis media (AOM). The present study was conducted to assess the pharmacokinetic profile of tebipenem in middle ear effusion and to examine the clinical efficacy of tebipenem pivoxil by calculating the values of the pharmacokinetic-pharmacodynamic ...
Tarhan Omer Ridvan - - 2013
BACKGROUND: In previous studies, changes in the surface of the peritoneum during laparoscopic surgery are well defined. Nevertheless, almost all of these studies were performed on rodents via scanning electron microscopy. In the present study, structural alterations of the mesothelial cells of peritoneum were examined during laparoscopic cholecystectomy using transmission ...
Bruchmann Julia - - 2013
Sub-inhibitory concentrations of antibiotics, which are found in environmental water systems and sewage plants due to an increased use in therapeutical and preventive fields, influence bacterial behavior in biofilms. The application of sulfamethoxazole, erythromycin, and roxithromycin induced changes in biofilm dynamics regarding biomass formation, spatial structure and specific gene expression ...
Diaz-Ledezma Claudio - - 2013
PURPOSE: Despite the interest in surgical treatment of femoroacetabular impingement (FAI), its impact upon health-related quality of life (HRQoL) has not been established. The objectives of this study were twofold: (a) to describe the pattern of impact of FAI on HRQoL and (b) to assess how articular and extra-articular factors ...
Barbey Aron K - - 2013
Although cognitive neuroscience has made valuable progress in understanding the role of the prefrontal cortex in human intelligence, the functional networks that support adaptive behavior and novel problem solving remain to be well characterized. Here, we studied 158 human brain lesion patients to investigate the cognitive and neural foundations of ...
Chhapola Viswas - - 2013
OBJECTIVE: To compare sodium and potassium levels in children as done with Blood Gas Analyzer (BGA) at point of care testing in pediatric ICU vs. that done in laboratory electrolyte analyzer. METHODS: This prospective method comparison study was done from February to April 2012 in Pediatric ICU of tertiary care ...
Zhang Gui-Lian - - 2013
Oxidative damage is an important mediator of Alzheimer's disease (AD); hence, antioxidant therapy is a potential treatment for AD. Edaravone, a free radical scavenger, has been shown to have neuroprotective properties. The study aimed to examine the effects of edaravone on indicators of Aβ25-35-induced oxidative damage in PC12 cells. PC12 ...
Hutter Erin E - - 2013
Joint function and durability after TKA depends on many factors, but component alignment is particularly important. Although the transepicondylar axis is regarded as the gold standard for rotationally aligning the femoral component, various techniques exist for tibial component rotational alignment. The impact of this variability on joint kinematics and stability ...
Pengelly Ana Raquel - - 2013
Although many metazoan enzymes that add or remove specific modifications on histone proteins are essential transcriptional regulators, the functional significance of posttranslational modifications on histone proteins is not well understood. Here, we show in Drosophila that a point mutation in lysine 27 of histone H3 (H3-K27) fails to repress transcription ...
Deng Yong - - 2013
Lymphatic vessels are thought to arise from PROX1-positive endothelial cells (ECs) in the cardinal vein in response to induction of SOX18 expression; however, the molecular event responsible for increased SOX18 expression has not been established. We generated mice with endothelial-specific, inducible expression of an RAF1 gene with a gain-of-function mutation ...
Hebeisen Michael - - 2013
Anti-self/tumor T cell function can be improved by increasing TCR-peptide MHC (pMHC) affinity within physiological limits, but paradoxically further increases (K(d) < 1 μM) lead to drastic functional declines. Using human CD8(+) T cells engineered with TCRs of incremental affinity for the tumor antigen HLA-A2/NY-ESO-1, we investigated the molecular mechanisms ...
Mays Lauren E - - 2013
Chemically modified mRNA is capable of inducing therapeutic levels of protein expression while circumventing the threat of genomic integration often associated with viral vectors. We utilized this novel therapeutic tool to express the regulatory T cell transcription factor, FOXP3, in a time- and site-specific fashion in murine lung, in order ...
Bhola Neil E - - 2013
After an initial response to chemotherapy, many patients with triple-negative breast cancer (TNBC) have recurrence of drug-resistant metastatic disease. Studies with TNBC cells suggest that chemotherapy-resistant populations of cancer stem-like cells (CSCs) with self-renewing and tumor-initiating capacities are responsible for these relapses. TGF-β has been shown to increase stem-like properties ...
Huang Der-Chen T - - 2013
Metal-on-metal (MOM) THA bearing technology has focused on improving the arc of motion and stability and minimizing wear compared with traditional metal-on-polyethylene (MOP) bearing couples. It is unclear whether this more costly technology adds value in terms of improved implant survival. This study evaluated Kaplan-Meier survival, revisions for dislocation, and ...
Peirson Leslea - - 2013
OBJECTIVES: This paper examines the development of a globally accessible online Registry of Knowledge Translation Methods and Tools to support evidence-informed public health. METHODS: A search strategy, screening and data extraction tools, and writing template were developed to find, assess, and summarize relevant methods and tools. An interactive website and ...
O'Leary Maureen A - - 2013
To discover interordinal relationships of living and fossil placental mammals and the time of origin of placentals relative to the Cretaceous-Paleogene (K-Pg) boundary, we scored 4541 phenomic characters de novo for 86 fossil and living species. Combining these data with molecular sequences, we obtained a phylogenetic tree that, when calibrated ...
Iseki Kunitoshi - - 2013
The social and economic burdens of dialysis are growing worldwide as the number of patients increases. Dialysis is becoming a heavy burden even in developed countries. Thus, preventing end-stage kidney disease is of the utmost importance. Early detection and treatment is recommended because late referral is common, with most chronic ...
Fromm Michael - - 2013
Bourassa et al. (Reports, 6 July 2012, p. 78) report on the 13 June 2011 eruption of the Nabro volcano and satellite observations of stratospheric aerosol that they attribute to troposphere to stratosphere ascent via the Asian monsoon. They claim (citing another source) that the 13 June top injection height ...
Vernier J-P - - 2013
Bourassa et al. (Reports, 6 July 2012, p. 78) have suggested that deep convection associated with the Asian monsoon played a critical role in transporting sulfur dioxide associated with the Nabro volcanic eruption (13 June 2011) from the upper troposphere (9 to 14 kilometers) into the lower stratosphere. An analysis ...
Ogo Seiji - - 2013
Chemists have long sought to mimic enzymatic hydrogen activation with structurally simpler compounds. Here, we report a functional [NiFe]-based model of [NiFe]hydrogenase enzymes. This complex heterolytically activates hydrogen to form a hydride complex that is capable of reducing substrates by either hydride ion or electron transfer. Structural investigations were performed ...
Antoniak Silvio - - 2013
Coagulation is a host defense system that limits the spread of pathogens. Coagulation proteases, such as thrombin, also activate cells by cleaving PARs. In this study, we analyzed the role of PAR-1 in coxsackievirus B3-induced (CVB3-induced) myocarditis and influenza A infection. CVB3-infected Par1(-/-) mice expressed reduced levels of IFN-β and ...
Lee Choonsik C Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institute of Health, Bethesda, MD, USA. - - 2013
We developed models of lymphatic nodes for six pediatric and two adult hybrid computational phantoms to calculate the lymphatic node dose estimates from external and internal radiation exposures. We derived the number of lymphatic nodes from the recommendations in International Commission on Radiological Protection (ICRP) Publications 23 and 89 at ...
Featherstone Robert E RE Department of Psychiatry, Translational Neuroscience Program, School of Medicine, University of Pennsylvania, 125 South 31st Street, Philadelphia, PA 19104, USA. - - 2013
A number of studies have associated reduced Akt1 expression with vulnerability for schizophrenia. Although mice with deletion of a single copy of the Akt1 gene (Akt1(+/-)) show reduced Akt1 expression relative to wild-type (WT) animals, the extent to which these mice show schizophrenia-like phenotypic changes and/or increased susceptibility to epigenetic ...
Samyshkin Yevgeniy - - 2013
OBJECTIVE: To estimate the cost-effectiveness of adding a selective phosphodiesterase-4 inhibitor, roflumilast, to a long-acting bronchodilator therapy (LABA) for the treatment of patients with severe-to-very severe chronic obstructive pulmonary disease (COPD) associated with chronic bronchitis with a history of frequent exacerbations from the UK payer perspective. METHODS: A Markov model ...
Sim Ji Ye JY Department of Radiology, Daejin Medical Center Bundang Jesaeng General Hospital, 255-2, Seohyun-dong, Bundang-gu, Sungnam-si, Gyeonggi-do 463-774, Republic of - - 2013
To prospectively estimate the additional diagnostic value of ultrasound (US) re-evaluation for patients with equivocal computed tomography (CT) findings of acute appendicitis. Between April 2011 and October 2011, 869 consecutive patients with suspected appendicitis who were referred for CT were included. The likelihood of appendicitis was prospectively categorized into five ...
Duttwyler Simon S Department of Chemistry, Yale University, New Haven, CT 06520, - - 2013
Piperidines are prevalent in natural products and pharmaceutical agents and are important synthetic targets for drug discovery and development. We report on a methodology that provides highly substituted piperidine derivatives with regiochemistry selectively tunable by varying the strength of acid used in the reaction. Readily available starting materials are first ...
Petersson Klas J KJ Department of Pharmaceutical Biosciences, Uppsala University, Box 591751 24, Uppsala, Sweden. - - 2013
Prolactin elevation is a side effect of all currently available D(2) receptor antagonists used in the treatment of schizophrenia. Prolactin elevation is the result of a direct antagonistic D(2) effect blocking the tonic inhibition of prolactin release by dopamine. The aims of this work were to assess the correlation between ...
Tennant I I Medical Research Council MRC Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, - - 2013
Cells dying by apoptosis are normally cleared by phagocytes through mechanisms that can suppress inflammation and immunity. Molecules of the innate immune system, the pattern recognition receptors (PRRs), are able to interact not only with conserved structures on microbes (pathogen-associated molecular patterns, PAMPs) but also with ligands displayed by apoptotic ...
Carone Dawn M DM Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06269, - - 2013
The proper functioning of centromeres requires a complex cascade of epigenetic events involving chromatin and kinetochore assembly; however, the precise mechanism by which this cascade proceeds is unknown. The pivotal event during kinetochore formation is the "loading," or deposition, of CENP-A. This histone H3 variant is specific to centromeres and ...
Nishimura Taki T Department of Physiology and Cell Biology, Tokyo Medical and Dental University, Tokyo 113-8519, - - 2013
Autophagosome formation is a dynamic process that is strictly controlled by autophagy-related (Atg) proteins. However, how these Atg proteins are recruited to the autophagosome formation site or autophagic membranes remains poorly understood. Here, we found that FIP200, which is involved in proximal events, directly interacts with Atg16L1, one of the ...
Nam Hae-Mi HM Department of Infectious Diseases, College of Veterinary Medicine, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 143-701, - - 2013
Porcine reproductive and respiratory syndrome virus (PRRSV) induces reproductive failure in sows and respiratory problems in pigs of all ages. Live attenuated and inactivated vaccines are used on swine farms to control PRRSV. However, their protective efficacy against field strains of PRRSV remains questionable. New vaccines have been developed to ...
Hilakivi-Clarke Leena L Department of Oncology, Georgetown University, Washington, DC 20057, USA. - - 2013
Women are using estrogens for many purposes, such as to prevent pregnancy or miscarriage, or to treat menopausal symptoms. Estrogens also have been used to treat breast cancer which seems puzzling, since there is convincing evidence to support a link between high lifetime estrogen exposure and increased breast cancer risk. ...
Zanier Katia K Biotechnologie et Signalisation Cellulaire UMR 7242, Ecole Supérieure de Biotechnologie de Strasbourg, Boulevard Sébastien Brant, BP 10413, F-67412 Illkirch, - - 2013
E6 viral oncoproteins are key players in epithelial tumors induced by papillomaviruses in vertebrates, including cervical cancer in humans. E6 proteins target many host proteins by specifically interacting with acidic LxxLL motifs. We solved the crystal structures of bovine (BPV1) and human (HPV16) papillomavirus E6 proteins bound to LxxLL peptides ...
Leake Patricia A PA Epstein Hearing Research Laboratory, Department of Otolaryngology-Head and Neck Surgery, University of California San Francisco, 533 Parnassus Ave., San Francisco, CA 94143-0526, USA. - - 2013
Both neurotrophic support and neural activity are required for normal postnatal development and survival of cochlear spiral ganglion (SG) neurons. Previous studies in neonatally deafened cats demonstrated that electrical stimulation (ES) from a cochlear implant can promote improved SG survival but does not completely prevent progressive neural degeneration. Neurotrophic agents ...
Strodtbeck Kyle K Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA. - - 2013
Improvements in survival among central nervous system (CNS) tumor patients has made the risk of developing a subsequent cancer an important survivorship issue. Such a risk is likely influenced by histological and treatment differences between CNS tumors. De-identified data for 41,159 patients with a primary CNS tumor diagnosis from 9 ...
Hoyer Erik H EH Department of Physical Medicine and Rehabilitation, The Johns Hopkins Medical Institution, 600 N. Wolfe Street, Phipps 174, Baltimore, MD 21287, USA. - - 2013
Bimanual coordination is essential for everyday activities. It is thought that different degrees of demands may affect learning of new bimanual patterns. One demand is at the level of performance and involves breaking the tendency to produce mirror-symmetric movements. A second is at a perceptual level and involves controlling each ...
Winter Sebastian E SE Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, One Shields Avenue, Davis, CA, - - 2013
Changes in the microbial community structure are observed in individuals with intestinal inflammatory disorders. These changes are often characterized by a depletion of obligate anaerobic bacteria, whereas the relative abundance of facultative anaerobic Enterobacteriaceae increases. The mechanisms by which the host response shapes the microbial community structure, however, remain unknown. ...
Ananthakrishnan Ashwin N AN Gastrointestinal Unit, Massachusetts General Hospital Crohn's and Colitis Center, 165 Cambridge Street, 9th Floor, Boston, MA 02114, USA. - - 2013
Abdominal abscesses are a common complication in Crohn's disease (CD). Percutaneous drainage of such abscesses has become increasingly popular and may deliver outcomes comparable to surgical treatment; however, such comparative data are limited from single-center studies. There have been no nationally representative studies comparing different treatment modalities for abdominal abscesses. ...
Pelosin Elisa - - 2013
BACKGROUND: . Action observation influences motor performance in healthy subjects and persons with motor impairments. OBJECTIVE: . To understand the effects of action observation on the spontaneous rate of finger movements in patients with Parkinson disease (PD). METHODS: . Participants, 20 with PD and 14 healthy controls, were randomly divided ...
Guzmán-Fulgencio María - - 2013
ABSTRACT: We performed a cross-sectional study in 469 HIV-infected patients, whose mitochondrial haplogroups were genotyped to study their association with the clinical pattern of AIDS-progression. The chance of not having a AIDS-progression was 1.45 (95% of confidence interval (95%CI)=1.02-2.05); p=0.035) times greater in patients with cluster HV and 1.51 (95%CI=1.06-2.18); ...
Hutchins Andrew Paul - - 2013
Reversible protein ubiquitination regulates virtually all known cellular activities. Here we present a quantitatively evaluated and broadly applicable method to predict eukaryotic ubiquitinating (UBE) and deubiquitinating (DUB) enzymes, and its application to 50 distinct genomes belonging to four of the five major phylogenetic supergroups of eukaryotes: unikonts (including metazoans, fungi, ...
Arslan Zihni - - 2013
Prokaryotic immunity against foreign nucleic acids mediated by clustered, regularly interspaced, short palindromic repeats (CRISPR) depends on the expression of the CRISPR-associated (Cas) proteins and the formation of small CRISPR RNAs (crRNAs). The crRNA-loaded Cas ribonucleoprotein complexes convey the specific recognition and inactivation of target nucleic acids. In E. coli ...
Zaki Muhammad - - 2013
Acute H. pylori infection produces hypochlorhydria. The decrease in acid facilitates survival of the bacterium and its colonization of the stomach. The present study was designed to identify the pathways in oxyntic mucosa by which acute H. pylori infection inhibits acid secretion. In rat fundic sheets in Ussing chamber, perfusion ...
Saxena Vipin - - 2013
The objective of this study was to evaluate the biocompatibility of zirconium phosphate (ZrP) nanoplatelets (NPs), and their use in drug delivery. ZrP and doxorubicin-intercalated ZrP (DOX:ZrP) NPs were characterized by using X-Ray Powder Diffraction (XRPD), Thermogravimetric Analysis (TGA), Transmission Electron Micrography (TEM), Scanning Electron Microscopy (SEM) and Atomic Force ...
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