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https://www.readbyqxmd.com/read/28938660/prognostic-value-of-programmed-death-ligand-1-in-sarcoma-a-meta-analysis
#1
Zhenhua Zhu, Zheng Jin, Mei Zhang, Yajun Tang, Guang Yang, Xiaowei Yuan, Jihang Yao, Dahui Sun
BACKGROUND: The prognostic role of programmed death-ligand 1 (PD-L1) in sarcoma remains controversial. We performed a meta-analysis so as to investigate the impact of PD-L1 on clinicopathlogical findings and survival outcomes in sarcoma. MATERIALS AND METHODS: A comprehensive search in PubMed, Embase and the Cochrane Library was conducted for relevant studies. The odds ratios or hazard ratios, at 95% confidence intervals were used as measures for investigation of the correlation between PD-L1 expression and clinicopathlogical features or survival outcomes...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938416/pancreatic-histopathology-of-human-monogenic-diabetes-due-to-causal-variants-in-kcnj11-hnf1a-gata6-and-lmna
#2
May Sanyoura, Laura Jacobsen, David Carmody, Daniela Del Gaudio, Gorka Alkorta-Aranburu, Kelly Arndt, Ying Ying Hu, Frances Kobiernicki, Irina Kusmartseva, Mark A Atkinson, Louis H Philipson, Desmond Schatz, Martha Campbell-Thompson, Siri Atma W Greeley
Context: Monogenic diabetes is thought to account for 2% of all diabetes cases but most patients are misdiagnosed as type 1 or type 2 diabetes. To date, little is known about the histopathological features of pancreases from patients with monogenic diabetes. Objective: Retrospective study of the JDRF Network for Pancreatic Organ donors with Diabetes biorepository was used to identify possible cases with monogenic diabetes and to compare effects of genetic variants on pancreas histology...
August 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28938224/novel-diphenylthiazole-derivatives-with-multi-target-mechanism-synthesis-docking-study-anticancer-and-anti-inflammatory-activities
#3
Ahmed H Abdelazeem, Mohammed T El-Saadi, Eman G Said, Bahaa G M Youssif, Hany A Omar, Samir M El-Moghazy
Over the last few decades, a growing body of studies addressed the anticancer activity of NSAIDs, particularly selective COX-2 inhibitors. However, their exact molecular mechanism is still unclear and is not fully investigated. In this regard, a novel series of compounds bearing a COXs privilege scaffold, diphenyl thiazole, was synthesized and evaluated for their anticancer activity against a panel of cancer cell lines. The most active compounds 10b, 14a,b, 16a, 17a,b and 18b were evaluated in vitro for COX-1/COX-2 inhibitory activity...
September 12, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28938109/investigating-mutation-specific-biological-activities-of-small-molecules-using-quantitative-structure-activity-relationship-for-epidermal-growth-factor-receptor-in-cancer
#4
P Anoosha, R Sakthivel, M Michael Gromiha
Epidermal Growth Factor Receptor (EGFR) is a potential drug target in cancer therapy. Missense mutations play major roles in influencing the protein function, leading to abnormal cell proliferation and tumorigenesis. A number of EGFR inhibitor molecules targeting ATP binding domain were developed for the past two decades. Unfortunately, they become inactive due to resistance caused by new mutations in patients, and previous studies have also reported noticeable differences in inhibitor binding to distinct known driver mutants as well...
August 26, 2017: Mutation Research
https://www.readbyqxmd.com/read/28938009/altering-neuronal-excitability-to-preserve-network-connectivity-in-a-computational-model-of-alzheimer-s-disease
#5
Willem de Haan, Elisabeth C W van Straaten, Alida A Gouw, Cornelis J Stam
Neuronal hyperactivity and hyperexcitability of the cerebral cortex and hippocampal region is an increasingly observed phenomenon in preclinical Alzheimer's disease (AD). In later stages, oscillatory slowing and loss of functional connectivity are ubiquitous. Recent evidence suggests that neuronal dynamics have a prominent role in AD pathophysiology, making it a potentially interesting therapeutic target. However, although neuronal activity can be manipulated by various (non-)pharmacological means, intervening in a highly integrated system that depends on complex dynamics can produce counterintuitive and adverse effects...
September 22, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28938006/association-between-circulating-mirnas-and-spinal-involvement-in-patients-with-axial-spondyloarthritis
#6
Klára Prajzlerová, Kristýna Grobelná, Markéta Hušáková, Šárka Forejtová, Astrid Jüngel, Steffen Gay, Jiří Vencovský, Karel Pavelka, Ladislav Šenolt, Mária Filková
OBJECTIVES: Dysregulation of miRNAs and their target genes contributes to the pathophysiology of autoimmune diseases. Circulating miRNAs may serve as diagnostic/prognostic biomarkers. We aimed to investigate the association between circulating miRNAs, disease activity and spinal involvement in patients with axial spondyloarthritis (AxSpA). METHODS: Total RNA was isolated from the plasma of patients with non-radiographic (nr)AxSpA, patients with ankylosing spondylitis (AS) and healthy controls (HC) via phenol-chloroform extraction...
2017: PloS One
https://www.readbyqxmd.com/read/28937987/combination-of-minimum-enclosing-balls-classifier-with-svm-in-coal-rock-recognition
#7
QingJun Song, HaiYan Jiang, Qinghui Song, XieGuang Zhao, Xiaoxuan Wu
Top-coal caving technology is a productive and efficient method in modern mechanized coal mining, the study of coal-rock recognition is key to realizing automation in comprehensive mechanized coal mining. In this paper we propose a new discriminant analysis framework for coal-rock recognition. In the framework, a data acquisition model with vibration and acoustic signals is designed and the caving dataset with 10 feature variables and three classes is got. And the perfect combination of feature variables can be automatically decided by using the multi-class F-score (MF-Score) feature selection...
2017: PloS One
https://www.readbyqxmd.com/read/28937893/effect-of-enamel-deproteinization-in-primary-teeth
#8
Ananthi Christopher, R Krishnakumar, N Venugopal Reddy, G Rohini
OBJECTIVE: To evaluate and compare the topographical features of enamel surface, etched with different materials. STUDY DESIGN: 10 extracted human primary molars were randomly selected and cut and trimmed to 1 mm(2). Each group comprised of 10 blocks and the enamel was treated as follows: Group I-35% H3PO4; Group II-5.25% NaOCl + 35% H3PO4 ;Group III-5.25% NaOCl; Group IV no treatment was carried out. All the samples were prepared for Scanning electron microscope analysis...
September 22, 2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28937739/applications-of-iridium-catalyzed-asymmetric-allylic-substitution-reactions-in-target-oriented-synthesis
#9
Jianping Qu, Günter Helmchen
Metal catalyzed allylic substitution is a cornerstone of organometallic and synthetic chemistry. Enantioselective versions have been developed with catalysts derived from transition metals, most notably molybdenum, nickel, ruthenium, rhodium, iridium, palladium, and copper. The palladium- and the iridium-catalyzed versions have turned out to be particularly versatile in organic synthesis because of the very broad scope of the nucleophile and great functional group compatibility. Assets of the iridium-catalyzed reaction are the formation of branched, chiral products from simple monosubstituted allylic substrates, high degrees of regio- and enantioselectivity, and use of modular, readily available chiral ligands...
September 22, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28937609/job-satisfaction-among-health-care-staff-in-township-health-centers-in-rural-china-results-from-a-latent-class-analysis
#10
Haipeng Wang, Chengxiang Tang, Shichao Zhao, Qingyue Meng, Xiaoyun Liu
Background: The lower job satisfaction of health-care staff will lead to more brain drain, worse work performance, and poorer health-care outcomes. The aim of this study was to identify patterns of job satisfaction among health-care staff in rural China, and to investigate the association between the latent clusters and health-care staff's personal and professional features; Methods: We selected 12 items of five-point Likert scale questions to measure job satisfaction. A latent-class analysis was performed to identify subgroups based on the items of job satisfaction; Results: Four latent classes of job satisfaction were identified: 8...
September 22, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28937368/human-immunodeficiency-virus-associated-cystic-lymphoid-hyperplasia-an-immunohistochemical-description
#11
Shabnum Meer, Shailen Dulabh
BACKGROUND: Cystic lymphoid hyperplasia (CLH) describes benign salivary lymphoepithelial cysts with a strong link to human immunodeficiency virus (HIV) infection and acquired immunodeficiency syndrome (AIDS). The pathogenesis is related to ductal dilatation of entrapped salivary elements due to intranodal HIV-associated atypical lymphoid hyperplasia. Very little is known about the immunophenotypic profile of this entity. AIM: This study aims to describe the immunopathological features of a series of CLH cases in HIV-positive patients to clarify the etiopathogenesis...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28936979/advances-of-selectable-marker-genes-in-plastid-genetic-engineering
#12
Yong He, An Luo, Lian-Sheng Mu, Qiang Chen, Yan Zhang, Kai-Wun Yeh, Zhi-Hong Tian
Plastid genetic engineering is a safer, more precise, and more efficient transgene expression system than the nuclear genetic transformation system. It has been widely used in basic research and biotechnology applications as the next-generation transgenic technology in plants. Similar to nuclear genetic transformation, selection markers are needed in plastid genetic engineering to identify 'true' transformants and acquire homoplasmy. Because of the high copy number of plastids, maternal inheritance of the plastid genome, and the long process of homogenization of transplastomic plants, the selection markers for plastid genetic engineering are different from those used in the nuclear transformation system...
September 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28936956/-epidemiology-characteristics-of-crawfish-related-rhabdomyolysis-in-nanjing-2016-a-multicenter-retrospective-investigation
#13
Shaolei Ma, Changsheng Xu, Songqiao Liu, Zongfeng Hu, Wen'ge Liu, Jinsong Zhang, Xufeng Chen, Shinan Nie, Jun Zhang, Dujuan Sha, Jinjin Li, Haibin Ni, Haidong Qin, Ying Gao, Wei Wang, Chengfang Wu, Zhan Yu, Congjian Zhu
OBJECTIVE: To investigate the epidemiology characteristics of crawfish related rhabdomyolysis (RM) in Nanjing, 2016. METHODS: Outpatient and inpatient electronic medical system of 21 hospitals in Nanjing during 2016 were retrospectively searched, and all the patients diagnosed with RM were selected. The patients with none crayfish-related RM was excluded. The epidemiology characteristics were depicted. The geographic information system (GIS) was used to collect, manage and analyze the spatial data, to visualize it, to analyze the spatial distribution features of the disease, and to explore the cause of disease prediction...
September 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28936673/in-vivo-reporters-for-protein-half-life
#14
Pavel Reichman, Nico Dissmeyer
Determination of the general capacity of proteolytic activity of a certain cell or tissue type can be crucial for an assessment of various features of an organism's growth and development and also for the optimization of biotechnological applications. Here, we describe the use of chimeric protein stability reporters that can be detected by standard laboratory techniques such as histological staining, selection using selective media or fluorescence microscopy. Dependent on the expression of the reporters due to the promoters applied, cell- and tissue-specific questions can be addressed...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28936580/use-of-cardiopulmonary-pump-support-during-coronary-artery-bypass-grafting-in-the-high-risk-a-meta-analysis
#15
A Yousif, D Addison, N Lakkis, T Rosengart, S S Virani, Y Birnbaum, M Alam
BACKGROUND: Data from randomized trials evaluating the efficacy of on- versus off-pump coronary artery bypass grafting remain inconclusive, particularly in high-risk populations. AIMS: The aim of this study is to compare the outcomes associated with on- versus off-pump coronary artery bypass grafting among high-risk patients. METHODS: We performed a meta-analysis of randomized control trials comparing on- versus off-pump coronary artery bypass grafting, focusing on high-risk populations...
September 21, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28936492/ensemble-hierarchical-high-order-functional-connectivity-networks-for-mci-classification
#16
Xiaobo Chen, Han Zhang, Dinggang Shen
Conventional functional connectivity (FC) and corresponding networks focus on characterizing the pairwise correlation between two brain regions, while the high-order FC (HOFC) and networks can model more complex relationship between two brain region "pairs" (i.e., four regions). It is eye-catching and promising for clinical applications by its irreplaceable function of providing unique and novel information for brain disease classification. Since the number of brain region pairs is very large, clustering is often used to reduce the scale of HOFC network...
October 2016: Medical Image Computing and Computer-assisted Intervention: MICCAI ..
https://www.readbyqxmd.com/read/28936404/-18-f-fdg-pet-for-assessing-biological-viability-and-prognosis-in-liver-transplant-patients-with-hepatocellular-carcinoma
#17
REVIEW
Arno Kornberg, Martina Schernhammer, Helmut Friess
Liver transplantation (LT) has become standard of care in patients with non-resectable early stage hepatocellular carcinoma (HCC) in liver cirrhosis. Currently, patient selection for LT is strictly based on tumor size and number, provided by the Milan criteria. This may, however, exclude patients with advanced tumor load but favourable biology from a possibly curative treatment option. It became clear in recent years that biological tumor viability rather than tumor macromorphology determines posttransplant outcome...
September 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28936168/mining-time-resolved-functional-brain-graphs-to-an-eeg-based-chronnectomic-brain-aged-index-cbai
#18
Stavros I Dimitriadis, Christos I Salis
The brain at rest consists of spatially and temporal distributed but functionally connected regions that called intrinsic connectivity networks (ICNs). Resting state electroencephalography (rs-EEG) is a way to characterize brain networks without confounds associated with task EEG such as task difficulty and performance. A novel framework of how to study dynamic functional connectivity under the notion of functional connectivity microstates (FCμstates) and symbolic dynamics is further discussed. Furthermore, we introduced a way to construct a single integrated dynamic functional connectivity graph (IDFCG) that preserves both the strength of the connections between every pair of sensors but also the type of dominant intrinsic coupling modes (DICM)...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28935400/adjuvant-sunitinib-in-high-risk-patients-with-uveal-melanoma-comparison-with-institutional-controls
#19
Matias E Valsecchi, Marlana Orloff, Rino Sato, Inna Chervoneva, Carol L Shields, Jerry A Shields, Michael J Mastrangelo, Takami Sato
PURPOSE: To compare overall survival in high-risk patients with primary uveal melanoma who received adjuvant sunitinib with institutional controls. DESIGN: Retrospective cohort. PARTICIPANTS: Selection criteria were (1) monosomy 3 and 8q amplification by cytogenetic or DecisionDx-UM Class 2 and (2) monosomy 3 and large tumor size (T3-4 by American Joint Committee on Cancer classification). Exclusion criteria were date of diagnosis before 2007 or after 2013 and age <18 years...
September 18, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28935170/individualized-prediction-of-psychosis-in-subjects-with-an-at-risk-mental-state
#20
Eleni Zarogianni, Amos J Storkey, Stefan Borgwardt, Renata Smieskova, Erich Studerus, Anita Riecher-Rössler, Stephen M Lawrie
Early intervention strategies in psychosis would significantly benefit from the identification of reliable prognostic biomarkers. Pattern classification methods have shown the feasibility of an early diagnosis of psychosis onset both in clinical and familial high-risk populations. Here we were interested in replicating our previous classification findings using an independent cohort at clinical high risk for psychosis, drawn from the prospective FePsy (Fruherkennung von Psychosen) study. The same neuroanatomical-based pattern classification pipeline, consisting of a linear Support Vector Machine (SVM) and a Recursive Feature Selection (RFE) achieved 74% accuracy in predicting later onset of psychosis...
September 19, 2017: Schizophrenia Research
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