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https://www.readbyqxmd.com/read/28332080/erratum-to-impaired-social-decision-making-mediates-the-association-between-adhd-and-social-problems
#1
Kathryn L Humphreys, Chardeé A Galán, Nim Tottenham, Steve S Lee
No abstract text is available yet for this article.
March 22, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28323403/discovery-of-potent-antiallodynic-agents-for-neuropathic-pain-targeting-p2x3-receptors
#2
Young-Hwan Jung, Yong-Chul Kim, Yeo Ok Kim, Hai Lin, Joong-Heui Cho, Jin-Hee Park, So-Deok Lee, Jinsu Bae, Koon Mook Kang, Yoon Gyoon Kim, Ae Nim Pae, Hyojin Ko, Chul-Seung Park, Myung Ha Yoon
Antagonism of the P2X3 receptor is one of the potential therapeutic strategies for the management of neuropathic pain because P2X3 receptors are predominantly localized on small to medium diameter C- and Aδ-fiber primary afferent neurons, which are related to the pain-sensing system. In this study, 5-hydroxy pyridine derivatives were designed, synthesized, and evaluated for their in vitro biological activities by two-electrode voltage clamp assay at hP2X3 receptors. Among the novel hP2X3 receptor antagonists, intrathecal treatment of compound 29 showed parallel efficacy with pregabalin (calcium channel modulator) and higher efficacy than AF353 (P2X3 receptor antagonist) in the evaluation of its antiallodynic effects in spinal nerve ligation rats...
March 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28285685/combination-treatment-with-erlotinib-and-ampelopsin-overcomes-erlotinib-resistance-in-nsclc-cells-via-the-nox2-ros-bim-pathway
#3
Seung-Woo Hong, Nam-Sook Park, Min Hye Noh, Ju A Shim, Byul-Nim Ahn, Yeong Seok Kim, Daejin Kim, Hyun-Kyung Lee, Dae Young Hur
OBJECTIVES: Erlotinib, a tyrosine kinase inhibitor (TKI) of epidermal growth factor receptor (EGFR), has been shown to have a dramatic effect in non-small cell lung cancer (NSCLC) patients with EGFR mutation. However, the presence of primary resistance or acquired resistance to EGFR-TKI is the most common reason for switching to other anti-cancer agents. Even though there are newer agents that have activity in the presence of the T790M mutation, identification of potential agents that could overcome resistance to EGFR-TKI is still needed for the treatment of NSCLC patients...
April 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28263385/intraoperative-near-infrared-fluorescence-imaging-targeting-folate-receptors-identifies-lung-cancer-in-a-large-animal-model
#4
Jane J Keating, Jeffrey J Runge, Sunil Singhal, Sarah Nims, Ollin Venegas, Amy C Durham, Gary Swain, Shuming Nie, Philip S Low, David E Holt
BACKGROUND: Complete tumor resection is the most important predictor of patient survival with non-small cell lung cancer. Methods for intraoperative margin assessment after lung cancer excision are lacking. This study evaluated near-infrared (NIR) intraoperative imaging with a folate-targeted molecular contrast agent (OTL0038) for the localization of primary lung adenocarcinomas, lymph node sampling, and margin assessment. METHODS: Ten dogs with lung cancer underwent either video-assisted thoracoscopic surgery or open thoracotomy and tumor excision after an intravenous injection of OTL0038...
May 15, 2017: Cancer
https://www.readbyqxmd.com/read/28262862/determination-of-mercury-ii-in-water-at-sub-nanomolar-levels-by-laser-ablation-icpms-analysis-of-screen-printed-electrodes-used-as-a-portable-voltammetric-preconcentration-system
#5
Zuriñe Abrego, Nora Unceta, Alicia Sánchez, Alberto Gómez-Caballero, Luis Maria Berrio-Ochoa, M Aranzazu Goicolea, Ramón J Barrio
Environmental pollution by mercury in ambient water samples is a recognized problem worldwide. Sample preservation and transport to the laboratory lead to uncertain analytical results. This study outlines the development of a procedure for on-site electrodeposition of mercury from water samples on a screen-printed gold electrode (SPGE) using portable voltammetric techniques. Once in the laboratory, Hg is analyzed by laser ablation inductively coupled plasma-mass spectrometry (LA-ICPMS) in order to ensure that the required sensitivity and precision levels for environmental sample analysis are reached...
March 6, 2017: Analyst
https://www.readbyqxmd.com/read/28260678/copper-ii-interaction-with-the-human-prion-103-112-fragment-coordination-and-oxidation
#6
Gizella Csire, Lajos Nagy, Katalin Várnagy, Csilla Kállay
The prion protein (PrP) is a membrane-anchored cell surface glycoprotein containing 231 amino acids. It has been associated with a group of neurodegenerative disorders. Copper(II) interaction with the Human Prion 103-112 fragment and its mutants has been studied with various techniques. The studied human prion fragment contains both histidine and methionine residues, while methionine residues are systematically replaced or displaced in the studied mutants. pH-potentiometric, UV-Vis and circular dicroism spectroscopic techniques were applied to study the stoichiometry, stability and structure of the copper(II) complexes, while HPLC-MS and MS/MS were used for identifying the products of copper(II) catalyzed oxidation...
May 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28258613/assessment-of-the-binding-performance-of-histamine-imprinted-microspheres-by-frontal-analysis-capillary-electrophoresis
#7
Edwin F Romano, Joselito P Quirino, John L Holdsworth, Regina C So, Clovia I Holdsworth
Frontal analysis capillary electrophoresis was used to evaluate the binding performance of molecularly imprinted microspheres (MIM) towards its template histamine and analogues at pH 7, and compared to the high performance liquid chromatographic method. In both methods, batch binding was employed and the binding parameters were calculated from the measured concentration of unbound amine analytes and afforded comparable histamine equilibrium dissociation constants (Kd ∼ 0.4 mM). FACE was easily carried out at shorter binding equilibration time (i...
March 3, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28253076/major-thought-restructuring-the-roles-of-different-prefrontal-cortical-regions
#8
Shima Seyed-Allaei, Zahra Nasiri Avanaki, Bahador Bahrami, Tim Shallice
An important question for understanding the neural basis of problem solving is whether the regions of human prefrontal cortices play qualitatively different roles in the major cognitive restructuring required to solve difficult problems. However, investigating this question using neuroimaging faces a major dilemma: either the problems do not require major cognitive restructuring, or if they do, the restructuring typically happens once, rendering repeated measurements of the critical mental process impossible...
March 2, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28243899/a-single-institution-experience-of-salvage-therapy-for-patients-with-early-and-locally-advanced-breast-cancer-who-progress-during-neoadjuvant-chemotherapy
#9
REVIEW
Jacques Raphael, Thivaher Paramsothy, Nim Li, Justin Lee, Sonal Gandhi
PURPOSE: Progression during neoadjuvant chemotherapy (NAT) for early and locally advanced breast cancer is generally uncommon. However, these patients tend to do poorly, and salvage therapy (ST) use is variable and often not well defined. We aimed to establish the characteristics and outcomes of breast cancer (BC) patients progressing on NAT, report the patterns of institutional ST usage, and identify predictors of ST failure. METHODS: A retrospective review was conducted using the "Biomatrix" institutional database...
February 27, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28241425/heat-shock-factor-1-depletion-sensitizes-a172-glioblastoma-cells-to-temozolomide-via-suppression-of-cancer-stem-cell-like-properties
#10
Chang-Nim Im, Hye Hyeon Yun, Jeong-Hwa Lee
Heat shock factor 1 (HSF1), a transcription factor activated by various stressors, regulates proliferation and apoptosis by inducing expression of target genes, such as heat shock proteins and Bcl-2 (B-cell lymphoma 2) interacting cell death suppressor (BIS). HSF1 also directly interacts with BIS, although it is still unclear whether this interaction is critical in the regulation of glioblastoma stem cells (GSCs). In this study, we examined whether small interfering RNA-mediated BIS knockdown decreased protein levels of HSF1 and subsequent nuclear localization under GSC-like sphere (SP)-forming conditions...
February 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28228829/hepatic-iron-storage-is-related-to-body-adiposity-and-hepatic-inflammation
#11
Chan Yoon Park, Jayong Chung, Kyung-Ok Koo, Min Soo Kim, Sung Nim Han
BACKGROUND: Obesity has been reported to be associated with iron deficiency. However, few studies have investigated iron status in low adiposity. To investigate whether body adiposity was associated with altered hepatic iron status, we compared liver iron levels and markers involved in inflammation and iron absorption in obese, control, and mildly calorie restricted mice. METHODS: Seven week old C57BL/6 mice were fed control (10% kcal fat, Control) or high fat (60% kcal fat, HFD) diets, or reduced amount of control diet to achieve 15% calorie restriction (CR) for 16 weeks...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28218690/comparison-of-the-anti-inflammatory-activities-of-supercritical-carbon-dioxide-versus-ethanol-extracts-from-leaves-of-perilla-frutescens-britt-radiation-mutant
#12
Chang Hyun Jin, Han Chul Park, Yangkang So, Bomi Nam, Sung Nim Han, Jin-Baek Kim
In this study, we aimed to compare supercritical carbon dioxide extraction and ethanol extraction for isoegomaketone (IK) content in perilla leaf extracts and to identify the optimal method. We measured the IK concentration using HPLC and inflammatory mediators in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells from the extracts. The IK concentration was 10-fold higher in perilla leaf extracts by supercritical carbon dioxide extraction (SFE) compared with that in perilla leaf extracts by ethanol extraction (EE)...
February 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28208911/meningitis-with-digital-gangrene-in-meningococcal-infection-an-atypical-presentation
#13
Jitendra Singh, Dandu Himanshu, Ranjit Kumar Nim, Anju Dinkar, Kamlesh Kumar Gupta
Meningococcal infection is an important public health concern. Neisseria meningitidis usually colonizes the nasopharynx of healthy adolescents and adults and remains as asymptomatic colonizer, while in rare cases it may present as invasive disease as either meningitis or septicemia or both. Most of the cases have typical presentation of rashes. We hereby present a case of a 40-year-old male who presented with meningococcal meningitis and peripheral digital gangrene but without development of typical rashes...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28202577/nimesulide-and-4-hydroxynimesulide-as-bile-acid-transporters-inhibitors-are-contributory-factors-for-drug-induced-cholestasis
#14
Lei Zhou, Xiaoyan Pang, Jingfang Jiang, Dafang Zhong, Xiaoyan Chen
Nimesulide (NIM) is a classic nonsteroidal anti-inflammatory drug. However, some patients treated with NIM suffered from cholestatic liver injury. For this reason, we investigated the potential mechanism underlying NIM-induced cholestasis by using in vivo and in vitro models. Oral administration of 100 mg/kg/day NIM to Wistar rats for 5 days increased the levels of plasma total bile acids, alkaline phosphatase, alanine aminotransferase, and aspartate aminotransferase by 1.49-, 1.31-, 1.60-, and 1.29-fold, respectively...
February 15, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28194935/a-potential-pet-radiotracer-for-the-5-ht2c-receptor-synthesis-and-in-vivo-evaluation-of-4-3-18-f-fluorophenethoxy-pyrimidine
#15
Juhyeon Kim, Byung Seok Moon, Byung Chul Lee, Ho-Young Lee, Hak Joong Kim, Hyunah Choo, Ae Nim Pae, Yong Seo Cho, Sun-Joon Min
The serotonin 2C receptor subtype (5-HT2C) is an excitatory 5-HT receptor widely distributed throughout the central nerve system. As the 5-HT2C receptor displays multiple actions on various neurotransmitter systems including glutamate, dopamine, epinephrine and -aminobutyric acid (GABA), abnormalities of the 5-HT2C receptor are associated with psychiatric diseases such as depression, schizophrenia, drug abuse, and anxiety. Up to date, three kinds of 5-HT2C PET radiotracers such as [11C]N-methylated arylazepine (1), [11C]WAY-163909 (2), [18F]fluorophenylcyclopropane (3) have been developed, but they may not be suitable for in vivo 5-HT2C imaging study due to their modest specific binding...
February 14, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28194664/phrenic-nerve-stimulation-during-neck-dissection-for-advanced-thyroid-cancer-involving-level-iv-is-it-worth-doing-it
#16
Carlos S Duque, Juan P Dueñas, Marcela Marulanda, Diana Pérez, Andres Londoňo, Soham Roy, Mai Al Khadem
During thyroidectomy and neck dissection surgery for advanced or recurrent metastatic thyroid cancer under intraoperative monitoring, we used the available technology to assess the feasibility of such an intervention to monitor those patients with phrenic nerves at risk. A retrospective review of patients operated on from January 2009 to December 2015 by a single surgeon (CSD) was conducted. Patients who had neck and mediastinal dissection, with or without total thyroidectomy, due to advanced or recurrent metastatic disease to the neck were selected...
February 13, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28194405/abundance-and-significance-of-neuroligin-1-and-neurexin-ii-in-the-enteric-nervous-system-of-embryonic-rats
#17
Dongming Wang, Jingnian Pan, Guoxin Song, Ni Gao, Yi Zheng, Qiangye Zhang, Aiwu Li
Aim. To investigate the abundance of neuroligin-1 and neurexin II in the enteric nervous system (ENS) of rats on different embryonic days and to explore their potential significance. Methods. The full-thickness colon specimens proximal to the ileocecal junction of rats on embryonic days 16, 18, and 20 and of newborns within 24 hours (E16, E18, E20, and Ep0) were studied, respectively. qRT-PCR was applied for detecting the expressions of neuroligin-1 and neurexin II on mRNA, and western blotting was employed for detecting their further expressions on the whole tissue...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28193145/constrained-cage-culture-improves-engineered-cartilage-functional-properties-by-enhancing-collagen-network-stability
#18
Robert J Nims, Alexander D Cigan, Krista M Durney, Brian K Jones, John D O'Neill, Wing-Sum A Law, Gordana Vunjak-Novakovic, Clark Tung-Hui Hung, Gerard A Ateshian
When cultured with sufficient nutrient supply, engineered cartilage synthesizes proteoglycans rapidly, producing an osmotic swelling pressure that destabilizes immature collagen and prevents the development of a robust collagen framework, a hallmark of native cartilage. We hypothesized that mechanically constraining the proteoglycan-induced tissue swelling would enhance construct functional properties through the development of a more stable collagen framework. To test this hypothesis, we developed a novel "cage" growth system to mechanically prevent tissue constructs from swelling while ensuring adequate nutrient supply to the growing construct...
February 14, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28184246/determination-of-glycoside-hydrolase-specificities-during-hydrolysis-of-plant-cell-walls-using-glycome-profiling
#19
Johnnie A Walker, Sivakumar Pattathil, Lai F Bergeman, Emily T Beebe, Kai Deng, Maryam Mirzai, Trent R Northen, Michael G Hahn, Brian G Fox
BACKGROUND: Glycoside hydrolases (GHs) are enzymes that hydrolyze polysaccharides into simple sugars. To better understand the specificity of enzyme hydrolysis within the complex matrix of polysaccharides found in the plant cell wall, we studied the reactions of individual enzymes using glycome profiling, where a comprehensive collection of cell wall glycan-directed monoclonal antibodies are used to detect polysaccharide epitopes remaining in the walls after enzyme treatment and quantitative nanostructure initiator mass spectrometry (oxime-NIMS) to determine soluble sugar products of their reactions...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28153762/chitosan-zein-nano-in-microparticles-capable-of-mediating-in-vivo-transgene-expression-following-oral-delivery
#20
Eric Farris, Deborah M Brown, Amanda E Ramer-Tait, Angela K Pannier
The oral route is an attractive delivery route for the administration of DNA-based therapeutics, specifically for applications in gene therapy and DNA vaccination. However, oral DNA delivery is complicated by the harsh and variable conditions encountered throughout gastrointestinal (GI) transit, leading to degradation of the delivery vector and DNA cargo, and subsequent inefficient delivery to target cells. In this work, we demonstrate the development and optimization of a hybrid-dual particulate delivery system consisting of two natural biomaterials, zein (ZN) and chitosan (CS), to mediate oral DNA delivery...
January 31, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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