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https://www.readbyqxmd.com/read/29325432/risk-factors-for-primary-failure-of-metallic-ureteral-stents-experience-from-a-tertiary-center
#1
Jui-Shan Hsu, Chao-Yuan Huang, Kao-Lang Liu, Po-Ming Chow
INTRODUCTION: We provide primary patency rate of metallic ureteral stents in cancer patients and investigate the factors affecting primary patency. METHODS: All cancer patients who had received metallic stents for malignant ureteral obstruction between July 2009 and November 2012 in our institute were included. No patients were excluded. Patient profiles, imaging studies, and lab data were collected. Patient profiles included age, gender, body height, body weight, body mass index, cancer types, treatment for cancer, response to cancer treatment, methods of stent insertion, and prior ordinary stents...
January 12, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29315592/identification-of-a-pyranocoumarin-photosensitizer-that-is-a-potent-inhibitor-of-keratinocyte-growth
#2
Jeffrey D Laskin, Yi-Hua Jan, Michele M Jetter, Christophe D Guillon, Thomas M Mariano, Diane E Heck, Ned D Heindel
Photosensitizers are used in the treatment of epidermal proliferation and differentiation disorders such as psoriasis and vitiligo. In the present studies, a ring-expanded carbon homologue of the linear psoralen (furo[3,2-g]benzopyran-7-one) class of photosensitizers, 4,10-dimethyl-2H,8H-benzo[1,2-b:5,4-b']dipyran-2-one (NDH2476), was synthesized and analyzed for biological activity. Following activation by ultraviolet light (UVA, 320-400 nm), NDH2476 was found to be a potent inhibitor of keratinocyte growth (IC50 = 9 nM)...
January 6, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29305382/german-doctors-leader-condemns-support-for-refugee-age-tests
#3
Ned Stafford
No abstract text is available yet for this article.
January 5, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29301738/second-version-of-google-glass-as-a-wearable-socio-affective-aid-positive-school-desirability-high-usability-and-theoretical-framework-in-a-sample-of-children-with-autism
#4
Ned T Sahin, Neha U Keshav, Joseph P Salisbury, Arshya Vahabzadeh
BACKGROUND: Computerized smartglasses are being developed as an assistive technology for daily activities in children and adults with autism spectrum disorder (ASD). While smartglasses may be able to help with educational and behavioral needs, their usability and acceptability in children with ASD is largely unknown. There have been reports of negative social perceptions surrounding smartglasses use in mainstream populations, a concern given that assistive technologies may already carry their own stigma...
January 4, 2018: JMIR Human Factors
https://www.readbyqxmd.com/read/29300013/structure-of-the-glucagon-receptor-in-complex-with-a-glucagon-analogue
#5
Haonan Zhang, Anna Qiao, Linlin Yang, Ned Van Eps, Klaus S Frederiksen, Dehua Yang, Antao Dai, Xiaoqing Cai, Hui Zhang, Cuiying Yi, Can Cao, Lingli He, Huaiyu Yang, Jesper Lau, Oliver P Ernst, Michael A Hanson, Raymond C Stevens, Ming-Wei Wang, Steffen Reedtz-Runge, Hualiang Jiang, Qiang Zhao, Beili Wu
Class B G-protein-coupled receptors (GPCRs), which consist of an extracellular domain (ECD) and a transmembrane domain (TMD), respond to secretin peptides to play a key part in hormonal homeostasis, and are important therapeutic targets for a variety of diseases. Previous work has suggested that peptide ligands bind to class B GPCRs according to a two-domain binding model, in which the C-terminal region of the peptide targets the ECD and the N-terminal region of the peptide binds to the TMD binding pocket. Recently, three structures of class B GPCRs in complex with peptide ligands have been solved...
January 3, 2018: Nature
https://www.readbyqxmd.com/read/29290183/comparison-of-retrograde-primary-and-secondary-bonding-materials-with-tooth-substance
#6
Tabinda Nawaz Khan, Syed Yawar Ali Abidi
OBJECTIVE: To compare the microleakage of MTA (mineral trioxide aggregate) and resin-modified GIC (glass ionomer vitremer) as retrograde endodontic material. STUDY DESIGN: Experimental study. PLACE AND DURATION OF STUDY: Operative Department of DIIKIOHS (DUHS) and NED University, Karachi, from February to June 2014. METHODOLOGY: Forty human anterior teeth were divided into four groups. Each tooth was endodontically treated...
January 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29275422/is-central-pancreatectomy-truly-recommendable-a-9-year-single-center-experience
#7
Ang Lv, Hong-Gang Qian, Hui Qiu, Jian-Hui Wu, Chun-Yi Hao
AIMS: To compare the short- and long-term outcomes in patients with pancreatic benign or borderline neoplasm who underwent central pancreatectomy (CP) and distal pancreatectomy (DP). METHODS: The inclusion criteria were as follows: (1) single benign or low-grade malignant tumor; (2) tumor confined to the pancreatic neck or proximal body; and (3) tumor amenable to either CP or DP. Short and long-term outcomes, including complications, pancreatic exocrine and endocrine function, and quality of life (QoL) were analyzed retrospectively...
December 22, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/29259727/inhibition-of-lysosomal-ca2-signalling-disrupts-dendritic-spine-structure-and-impairs-wound-healing-in-neurons
#8
Zahid Padamsey, Lindsay McGuinness, Nigel J Emptage
A growing body of evidence suggests that lysosomes, which have traditionally been regarded as degradative organelles, can function as Ca2+ stores, regulated by the second messenger nicotinic acid adenine dinucleotide phosphate (NAADP). We previously demonstrated that in hippocampal pyramidal neurons, activity-dependent Ca2+ release from these stores triggers fusion of the lysosome with the plasma membrane. We found that the physiological role of this Ca2+-dependent fusion was to maintain the long-term structural enlargement of dendritic spines induced by synaptic activity...
2017: Communicative & Integrative Biology
https://www.readbyqxmd.com/read/29240490/book-reviews-oxford-handbook-of-clinical-medicine-10th-edn-ian-b-wilkinson-tim-raine-kate-wiles-anna-goodhart-catriona-hall-harriet-o-neill-oxford-university-press-2017-price-%C3%A2-29-99-pp-904-isbn-9780199689903-textbook-of-critical-care-7th-edn-jean-louis-vincent
#9
https://www.readbyqxmd.com/read/29225348/a-multi-dimensional-characterization-of-anxiety-in-monozygotic-twin-pairs-reveals-susceptibility-loci-in-humans
#10
Reid S Alisch, Carol Van Hulle, Pankaj Chopra, Anita Bhattacharyya, Su-Chun Zhang, Richard J Davidson, Ned H Kalin, H Hill Goldsmith
The etiology of individual differences in human anxiousness is complex and includes contributions from genetic, epigenetic (i.e., DNA methylation) and environmental factors. Past genomic approaches have been limited in their ability to detect human anxiety-related differences in these factors. To overcome these limitations, we employed both a multi-dimensional characterization method, to select monozygotic twin pairs discordant for anxiety, and whole genome DNA methylation sequencing. This approach revealed 230 anxiety-related differentially methylated loci that were annotated to 183 genes, including several known stress-related genes such as NAV1, IGF2, GNAS, and CRTC1...
December 11, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29215743/driven-exercise-in-the-absence-of-binge-eating-implications-for-purging-disorder
#11
Janet A Lydecker, Megan Shea, Carlos M Grilo
OBJECTIVE: Purging disorder (PD) is characterized by recurrent purging without objectively large binge-eating episodes. PD has received relatively little attention, and questions remain about the clinical significance of "purging" by exercise that is driven or compulsive (i.e., as extreme compensatory or weight-control behavior). The little available research suggests that individuals who use exercise as a compensatory behavior might have less eating-disorder psychopathology than those who purge by vomiting or laxatives, but those studies have had smaller sample sizes, defined PD using low-frequency thresholds, and defined exercise without weight-compensatory or driven elements...
December 7, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/29191973/blocking-the-feedback-loop-between-neuroendocrine-differentiation-and-macrophages-improves-the-therapeutic-effects-of-enzalutamide-mdv3100-on-prostate-cancer
#12
Chao Wang, Guang Peng, Hai Huang, Fei Liu, De-Pei Kong, Ke-Qin Dong, Li-He Dai, Zhe Zhou, Kai-Jian Wang, Jun Yang, Yan-Qiong Cheng, Xu Gao, Min Qu, Hongru Wang, Feng Zhu, Qin-Qin Tian, Dan Liu, Li Cao, Xingang Cui, Chuanliang Xu, Dan-Feng Xu, Yinghao Sun
PURPOSE: Androgen-deprivation therapy (ADT), including enzalutamide, induces resistance in prostate cancer (PCa); ADT resistance is associated with neuroendocrine differentiation (NED) and tumor-associated macrophages (TAMs). This study aimed to investigate the association between enzalutamide-induced NED and TAMs and its mechanism. EXPERIMENTAL DESIGN: The association between enzalutamide-induced NED and TAMs was investigated by immunohistochemistry using PCa tissues, enzalutamide-resistant mouse xenografts and a co-culture system...
November 30, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29188008/ecotypic-differences-in-the-phenology-of-the-tundra-species-eriophorum-vaginatum-reflect-sites-of-origin
#13
Thomas C Parker, Jianwu Tang, Mahalia B Clark, Michael M Moody, Ned Fetcher
Eriophorum vaginatum is a tussock-forming sedge that contributes significantly to the structure and primary productivity of moist acidic tussock tundra. Locally adapted populations (ecotypes) have been identified across the geographical distribution of E. vaginatum; however, little is known about how their growth and phenology differ over the course of a growing season. The growing season is short in the Arctic and therefore exerts a strong selection pressure on tundra species. This raises the hypothesis that the phenology of arctic species may be poorly adapted if the timing and length of the growing season change...
November 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29173811/neutronic-design-study-of-accelerator-driven-system-ads-for-jordan-subcritical-reactor-as-a-neutron-source-for-nuclear-research
#14
Ned Xoubi
In this paper, a preliminary neutronic design study of an accelerator driven subcritical system for Jordan Subcritical Assembly (JSA) is presented. The conceptual design of coupling the JSA core with proton accelerator and spallation target is investigated, and its feasibility as a neutron source for nuclear research, and possibly for target irradiation and isotope production evaluated. 3D MCNPX model of the JSA reactor, the accelerator beam, and the Pb target was developed, based on actual reactor parameters...
November 21, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29169880/evaluating-the-benefit-of-elevated-acoustic-output-in-harmonic-motion-estimation-in-ultrasonic-shear-wave-elasticity-imaging
#15
Yufeng Deng, Mark L Palmeri, Ned C Rouze, Clare M Haystead, Kathryn R Nightingale
Harmonic imaging techniques have been applied in ultrasonic elasticity imaging to obtain higher-quality tissue motion tracking data. However, harmonic tracking can be signal-to-noise ratio and penetration depth limited during clinical imaging, resulting in decreased yield of successful shear wave speed measurements. A logical approach is to increase the source pressure, but the in situ pressures used in diagnostic ultrasound have been subject to a de facto upper limit based on the Food and Drug Administration guideline for the mechanical index (MI <1...
November 21, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29165816/prospective-phase-ii-trial-of-combination-hepatic-artery-infusion-and-systemic-chemotherapy-for-unresectable-colorectal-liver-metastases-long-term-results-and-curative-potential
#16
Linda M Pak, Nancy E Kemeny, Marinela Capanu, Joanne F Chou, Taryn Boucher, Andrea Cercek, Vinod P Balachandran, T Peter Kingham, Peter J Allen, Ronald P DeMatteo, William R Jarnagin, Michael I D'Angelica
BACKGROUND/OBJECTIVES: Combination hepatic artery infusion (HAI) and systemic (SYS) chemotherapy for unresectable CRLM results in high tumor-response rates. This study represents an update of long-term survival and conversion to resectability in patients with unresectable CRLM treated with HAI and SYS chemotherapy in a phase II study. METHOD: The primary endpoint was complete resection. Multivariate and landmark analysis assessed the effect of complete resection on progression-free (PFS) and overall survival (OS)...
November 22, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29164873/plasma-protein-turnover-rates-in-rats-using-stable-isotope-labeling-global-proteomics-and-activity-based-protein-profiling
#17
Jordan Ned Smith, Kimberly J Tyrrell, Joshua R Hansen, Dennis George Thomas, Taylor A Murphree, Anil K Shukla, Teresa Luders, James M Madden, YunYing Li, Aaron T Wright, Paul D Piehowski
Protein turnover is important for general health on cellular and organism scales providing a strategy to replace old, damaged, or dysfunctional proteins. Protein turnover also informs of biomarker kinetics, as a better understanding of synthesis and degradation of proteins increases the clinical utility of biomarkers. Here, turnover rates of plasma proteins in rats were measured in vivo using a pulse-chase stable isotope labeling experiment. During the pulse, rats (n=5) were fed 13C6-labeled lysine ("heavy") feed for 23 days to label proteins...
November 22, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29138344/targeting-the-mycn-parp-dna-damage-response-pathway-inneuroendocrine-prostate-cancer
#18
Wei Zhang, Bo Liu, Wenhui Wu, Likun Li, Bradley M Broom, Spyridon M Basourakos, Dimitrios Korentzelos, Yang Luan, Jianxiang Wang, Guang Yang, Sanghee Park, Abul K Azad, Xuhong Cao, Jeri Kim, Paul Corn, Christopher Logothetis, Ana M Aparicio, Arul M Chinnayan, Nora M Navone, Patricia Troncoso, Timothy C Thompson
PURPOSE: We investigated MYCN-regulated molecular pathways in castration-resistant prostate cancer (CRPC) classified by morphological criteria as adenocarcinoma or neuroendocrine to extend the molecular phenotype, establish driver pathways, and identify novel approaches to combination therapy for NEPC. RESULTS: Using comparative bioinformatics analyses of CRPC-Adeno and CRPC-Neuro RNA sequence data from public datasets and a panel of 28 PDX models we identified a MYCN-PARP-DNA damage response (DDR) pathway that is enriched in CRPC with neuroendocrine differentiation (NED) and CRPC-Neuro...
November 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29131446/food-provision-among-food-relief-agencies-in-rural-australia-and-perceived-barriers-and-enablers-to-provide-healthy-food
#19
Natalia Bortolin, Jaqueline Priestly, Janice Sangster
OBJECTIVE: Food insecurity affects 4-14% of Australians, and up to 82% of vulnerable groups. Food relief agencies commonly provide food parcels or food vouchers. Little research has been undertaken on food relief agencies within rural Australia. This study determined the type of food assistance provided by rural FRAs, and barriers and enablers to provide healthy food. DESIGN: Cross-sectional study, using telephone questionnaires with qualitative and quantitative aspects...
November 13, 2017: Australian Journal of Rural Health
https://www.readbyqxmd.com/read/29127031/sulfur-mustard-induced-mast-cell-degranulation-in-mouse-skin-is-inhibited-by-a-novel-anti-inflammatory-and-anticholinergic-bifunctional-prodrug
#20
Laurie B Joseph, Gabriella M Composto, Roberto M Perez, Hong-Duck Kim, Robert P Casillas, Ned D Heindel, Sherri C Young, Carl J Lacey, Jaya Saxena, Christophe D Guillon, Claire R Croutch, Jeffrey D Laskin, Diane E Heck
Sulfur mustard (SM, bis(2-chloroethyl sulfide) is a potent vesicating agent known to cause skin inflammation, necrosis and blistering. Evidence suggests that inflammatory cells and mediators that they generate are important in the pathogenic responses to SM. In the present studies we investigated the role of mast cells in SM-induced skin injury using a murine vapor cup exposure model. Mast cells, identified by toluidine blue staining, were localized in the dermis, adjacent to dermal appendages and at the dermal/epidermal junction...
November 7, 2017: Toxicology Letters
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