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https://www.readbyqxmd.com/read/28934726/application-of-adverse-outcome-pathways-to-u-s-epa-s-endocrine-disruptor-screening-program
#1
REVIEW
Patience Browne, Pamela D Noyes, Warren M Casey, David J Dix
BACKGROUND: The U.S. EPA's Endocrine Disruptor Screening Program (EDSP) screens and tests environmental chemicals for potential effects in estrogen, androgen, and thyroid hormone pathways, and it is one of the only regulatory programs designed around chemical mode of action. OBJECTIVES: This review describes the EDSP's use of adverse outcome pathway (AOP) and toxicity pathway frameworks to organize and integrate diverse biological data for evaluating the endocrine activity of chemicals...
September 1, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934234/a-novel-feature-ranking-method-for-prediction-of-cancer-stages-using-proteomics-data
#2
Ehsan Saghapour, Saeed Kermani, Mohammadreza Sehhati
Proteomic analysis of cancers' stages has provided new opportunities for the development of novel, highly sensitive diagnostic tools which helps early detection of cancer. This paper introduces a new feature ranking approach called FRMT. FRMT is based on the Technique for Order of Preference by Similarity to Ideal Solution method (TOPSIS) which select the most discriminative proteins from proteomics data for cancer staging. In this approach, outcomes of 10 feature selection techniques were combined by TOPSIS method, to select the final discriminative proteins from seven different proteomic databases of protein expression profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28933702/the-development-and-preliminary-validity-testing-of-the-healing-progression-rate-tool
#3
Daniel L Young, Nancy Estocado, Du Feng, Joyce Black
Accurate assessment and clear documentation are important aspects of wound care; they provide a basis for appropriate patient care decisions and reimbursement. A descriptive, qualitative study was conducted to develop and provide preliminary evidence of the validity of a new tool to measure wound healing (the Healing Progression Rate [HPR]), a modified version of the Pressure Ulcer Scale for Healing (PUSH). Three (3) groups of current and future practitioners participated in the instrument development and evaluation process: 1) 3 wound care experts/authors (2 physical therapists, 1 nurse) with a minimum of 15 years of experience, 2) 6 additional wound care experts (4 nurses and 2 physical therapists) with a minimum of 10 years experience, and 3) 120 participants (77 [64...
September 2017: Ostomy/wound Management
https://www.readbyqxmd.com/read/28932957/fluoroscopy-vs-ultrasound-guided-aspiration-techniques-in-the-management-of-periprosthetic-joint-infection-which-is-the-best
#4
Filippo Randelli, Marco Brioschi, Pietro Randelli, Federico Ambrogi, Silvana Sdao, Alberto Aliprandi
BACKGROUND: Fluid samples obtained from an affected joint still play a central role in the diagnosis of periprosthetic joint infection (PJI). It is the only preoperative test able to discover the causative microbiological agent. In the hip, fluid aspiration can be performed through fluoroscopy, ultrasound, or, less commonly, computed tomography. However, there is still a lack of consensus on which method is preferable in terms of efficacy and costbenefit. PURPOSES: We, therefore, asked whether (1) the benefits in terms of sensitivity and specificity and (2) the costs were comparable between fluoroscopy- and ultrasound-guided joint aspirations in a suspicious of hip PJI...
September 20, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28932948/analysis-of-the-performance-emission-and-combustion-characteristics-of-a-turbocharged-diesel-engine-fuelled-with-jatropha-curcas-biodiesel-diesel-blends-using-kernel-based-extreme-learning-machine
#5
Arridina Susan Silitonga, Masjuki Haji Hassan, Hwai Chyuan Ong, Fitranto Kusumo
The purpose of this study is to investigate the performance, emission and combustion characteristics of a four-cylinder common-rail turbocharged diesel engine fuelled with Jatropha curcas biodiesel-diesel blends. A kernel-based extreme learning machine (KELM) model is developed in this study using MATLAB software in order to predict the performance, combustion and emission characteristics of the engine. To acquire the data for training and testing the KELM model, the engine speed was selected as the input parameter, whereas the performance, exhaust emissions and combustion characteristics were chosen as the output parameters of the KELM model...
September 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28932815/a-multicenter-study-to-evaluate-the-performance-of-high-throughput-sequencing-for-virus-detection
#6
Arifa S Khan, Siemon H S Ng, Olivier Vandeputte, Aisha Aljanahi, Avisek Deyati, Jean-Pol Cassart, Robert L Charlebois, Lanyn P Taliaferro
The capability of high-throughput sequencing (HTS) for detection of known and unknown viruses makes it a powerful tool for broad microbial investigations, such as evaluation of novel cell substrates that may be used for the development of new biological products. However, like any new assay, regulatory applications of HTS need method standardization. Therefore, our three laboratories initiated a study to evaluate performance of HTS for potential detection of viral adventitious agents by spiking model viruses in different cellular matrices to mimic putative materials for manufacturing of biologics...
September 2017: MSphere
https://www.readbyqxmd.com/read/28932269/evaluation-and-performance-of-a-newly-developed-patient-reported-outcome-instrument-for-diarrhea-predominant-irritable-bowel-syndrome-in-a-clinical-study-population
#7
Leticia Delgado-Herrera, Kathryn Lasch, Bernhardt Zeiher, Anthony J Lembo, Douglas A Drossman, Benjamin Banderas, Kathleen Rosa, Christopher Lademacher, Rob Arbuckle
BACKGROUND: To evaluate the psychometric properties of the newly developed seven-item Irritable Bowel Syndrome - Diarrhea predominant (IBS-D) Daily Symptom Diary and four-item Event Log using phase II clinical trial safety and efficacy data in patients with IBS-D. This instrument measures diarrhea (stool frequency and stool consistency), abdominal pain related to IBS-D (stomach pain, abdominal pain, abdominal cramps), immediate need to have a bowel movement (immediate need and accident occurrence), bloating, pressure, gas, and incomplete evacuation...
September 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28932180/hardware-efficient-on-line-learning-through-pipelined-truncated-error-backpropagation-in-binary-state-networks
#8
Hesham Mostafa, Bruno Pedroni, Sadique Sheik, Gert Cauwenberghs
Artificial neural networks (ANNs) trained using backpropagation are powerful learning architectures that have achieved state-of-the-art performance in various benchmarks. Significant effort has been devoted to developing custom silicon devices to accelerate inference in ANNs. Accelerating the training phase, however, has attracted relatively little attention. In this paper, we describe a hardware-efficient on-line learning technique for feedforward multi-layer ANNs that is based on pipelined backpropagation...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28932083/integrating-tyms-kras-and-braf-testing-in-patients-with-metastatic-colorectal-cancer
#9
Anastasios Ntavatzikos, Aris Spathis, Paul Patapis, Nikolaos Machairas, George Peros, Stefanos Konstantoudakis, Danai Leventakou, Ioannis G Panayiotides, Petros Karakitsos, Anna Koumarianou
AIM: To investigate the impact of thymidylate synthase (TYMS), KRAS and BRAF in the survival of metastatic colorectal cancer (mCRC) patients treated with chemotherapy. METHODS: Clinical data were collected retrospectively from records of consecutive patients with mCRC treated with fluoropyrimidine-based chemotherapy from 1/2005 to 1/2007. Formalin-fixed paraffin-embedded tissues were retrieved for analysis. TYMS genotypes were identified with restriction fragment analysis PCR, while KRAS and BRAF mutation status was evaluated using real-time PCR assays...
August 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28931996/a-modified-seated-side-tapping-test-in-which-the-arms-are-crossed-also-reflects-gait-function-in-community-dwelling-elderly
#10
Satoshi Fuchioka, Akira Iwata, Yumi Higuchi, Mari Miyake, Seiji Kanda, Toshimasa Nishiyama
[Purpose] Seated side tapping test (SST) performance is associated with mobility impairment in the elderly. Although this test was developed to assess trunk function, interpretation of its results may be confounded by the upper-limb movements in its protocol. Here, this study aimed to validate the association between trunk function and gait function by means of the Arms Crossed SST (AC-SST), a modified version of the SST in which the arms are crossed over the chest, to exclude the effects of the upper limbs...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28931984/reliability-and-validity-of-measuring-respiration-movement-using-a-wearable-strain-sensor-in-healthy-subjects
#11
Haijuan Liu, Shaopeng Guo, Kaipei Zheng, Xiaojun Guo, Tsugumi Kuramoto-Ahuja, Tamae Sato, Ko Onoda, Hitoshi Maruyama
[Purpose] The purpose of this research was to verify the reliability and validity of measuring respiration movement using a wearable strain sensor (WSS) which has been developed newly for clinical objective assessment. [Subjects and Methods] The 21 healthy male students were advised to conduct a breathing movement using measuring tape (MT) and WSS respectively, which was the measured at four locations on chest and abdomen wall. The different degree of chest expansion from maximal end of expiration to maximal end of inspiration was confirmed at each location...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28931768/study-of-hepatic-artery-cone-beam-imaging-by-low-rate-injection-in-iodinated-contrast-agent
#12
Mitsuru Osawa, Tadafumi Takano, Akihiko Hanawa, Yasuhiro Minami, Hiroshi Miura
PURPOSE: CT during hepatic arteriography (CTHA) of cone-beam computed tomography (CBCT) provides valid information in performing transcatheter arterial chemo-embolization (TACE). The usefulness of CTHA with the diluted contrast medium has been reported in some medical conferences. However, the operation becomes somehow complicated for the medical institutions that have angiography injectors with a single head. In this study, we aimed to investigate the clinical equivalence of low-rate injection method and diluted injection method...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28931509/development-and-validation-of-qmortality-risk-prediction-algorithm-to-estimate-short-term-risk-of-death-and-assess-frailty-cohort-study
#13
Julia Hippisley-Cox, Carol Coupland
Objectives To derive and validate a risk prediction equation to estimate the short term risk of death, and to develop a classification method for frailty based on risk of death and risk of unplanned hospital admission.Design Prospective open cohort study.Participants Routinely collected data from 1436 general practices contributing data to QResearch in England between 2012 and 2016. 1079 practices were used to develop the scores and a separate set of 357 practices to validate the scores. 1.47 million patients aged 65-100 years were in the derivation cohort and 0...
September 20, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28931441/tracking-progressive-pathological-and-functional-decline-in-the-rtg4510-mouse-model-of-tauopathy
#14
Thomas Blackmore, Soraya Meftah, Tracey Karen Murray, Peter James Craig, Anthony Blockeel, Keith Phillips, Brian Eastwood, Michael J O'Neill, Hugh Marston, Zeshan Ahmed, Gary Gilmour, Francois Gastambide
BACKGROUND: The choice and appropriate use of animal models in drug discovery for Alzheimer's disease (AD) is pivotal to successful clinical translation of novel therapeutics, yet true alignment of research is challenging. Current models do not fully recapitulate the human disease, and even exhibit various degrees of regional pathological burden and diverse functional alterations. Given this, relevant pathological and functional endpoints must be determined on a model-by-model basis. The present work explores the rTg4510 mouse model of tauopathy as a case study to define best practices for the selection and validation of cognitive and functional endpoints for the purposes of pre-clinical AD drug discovery...
September 20, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28931248/validity-evidence-for-the-neuro-endoscopic-ventriculostomy-assessment-tool-nevat
#15
Gerben E Breimer, Faizal A Haji, Giuseppe Cinalli, Eelco W Hoving, James M Drake
BACKGROUND: Growing demand for transparent and standardized methods for evaluating surgical competence prompted the construction of the Neuro-Endoscopic Ventriculostomy Assessment Tool (NEVAT). OBJECTIVE: To provide validity evidence of the NEVAT by reporting on the tool's internal structure and its relationship with surgical expertise during simulation-based training. METHODS: The NEVAT was used to assess performance of trainees and faculty at an international neuroendoscopy workshop...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28931047/association-between-perinatal-hypoxic-ischemia-and-periventricular-leukomalacia-in-preterm-infants-a-systematic-review-and-meta-analysis
#16
Jichong Huang, Li Zhang, Bingyao Kang, Tingting Zhu, Yafei Li, Fengyan Zhao, Yi Qu, Dezhi Mu
BACKGROUND: Although investigators have implicated hypoxic-ischemia (HI) as a potential cause of periventricular leukomalacia (PVL), the role of clinical risk factors or markers for HI in the development of PVL remains controversial. The aim of this study was to identify perinatal HI-related factors associated with PVL. METHOD: The PubMed, EMBASE, and Cochrane Library databases were searched. The last search was performed on January 2017. Summary effect estimates (pooled odds ratios [ORs]) were calculated for each risk factor using fixed or random effects models with tests for heterogeneity and publication bias...
2017: PloS One
https://www.readbyqxmd.com/read/28930972/study-of-protein-protein-interactions-in-autophagy-research
#17
Secil Erbil-Bilir, Nur M Kocaturk, Melih Yayli, Devrim Gozuacik
Protein-protein interactions are important for understanding cellular signaling cascades and identifying novel pathway components and protein dynamics. The majority of cellular activities require physical interactions between proteins. To analyze and map these interactions, various experimental techniques as well as bioinformatics tools were developed. Autophagy is a cellular recycling mechanism that allows the cells to cope with different stressors, including nutrient deprivation, chemicals, and hypoxia. In order to better understand autophagy-related signaling events and to discover novel factors that regulate protein complexes in autophagy, we performed protein-protein interaction screens...
September 9, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28930872/improving-vertical-jump-profiles-through-prescribed-movement-plans
#18
John K Mayberry, Bryce Patterson, Phil Wagner
Developing practical, reliable, and valid methods for monitoring athlete wellness and injury risk is an important goal for trainers, athletes, and coaches. Previous studies have shown that the countermovement vertical jump test (CMJ) is both a reliable and valid metric for evaluating an athlete's condition. This study examines the effectiveness of prescribed workouts on improving quality of movement during CMJ. The dataset consists of 2425 pairs of CMJ scans for high school, college, and professional athletes training at a privately owned facility...
September 11, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28930698/2d-and-3d-ct-radiomics-features-prognostic-performance-comparison-in-non-small-cell-lung-cancer
#19
Chen Shen, Zhenyu Liu, Min Guan, Jiangdian Song, Yucheng Lian, Shuo Wang, Zhenchao Tang, Di Dong, Lingfei Kong, Meiyun Wang, Dapeng Shi, Jie Tian
OBJECTIVE: To compare 2D and 3D radiomics features prognostic performance differences in CT images of non-small cell lung cancer (NSCLC). METHOD: We enrolled 588 NSCLC patients from three independent cohorts. Two sets of 463 patients from two different institutes were used as the training cohort. The remaining cohort with 125 patients was set as the validation cohort. A total of 1014 radiomics features (507 2D features and 507 3D features correspondingly) were assessed...
September 17, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28929961/-national-antimicrobial-resistance-surveillance-system-namrss-external-quality-assessment-studies-2011-2016
#20
Serap Süzük Yıldız, Hüsniye Şimşek, Nilay Çöplü, Zeynep Gülay
Establishment of sustainable and evidence-based surveillance systems are recommended for prevention of microbial resistance by the World Health Organization (WHO). As a necessity of these surveillance systems, participants are recommended to implement an external quality assessment (EQA) program. In this scope, National Antimicrobial Resistance Surveillance System (NARSS) has been established within the Public Health Institute of Turkey (PHIT) in our country since 2011. In the scope of this surveillance, NARSS EQA program has been implemented in a cycle per year and four isolates were sent to participants per cycle every year since 2011...
July 2017: Mikrobiyoloji Bülteni
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