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https://www.readbyqxmd.com/read/28445542/no-touch-radiofrequency-ablation-using-multiple-electrodes-an-in-vivo-comparison-study-of-switching-monopolar-versus-switching-bipolar-modes-in-porcine-livers
#1
Won Chang, Jeong Min Lee, Jeong Hee Yoon, Dong Ho Lee, Sang Min Lee, Kyoung Bun Lee, Bo Ram Kim, Tae-Hyung Kim, Seunghyun Lee, Joon Koo Han
OBJECTIVE: To evaluate the in vivo technical feasibility, efficiency, and safety of switching bipolar (SB) and switching monopolar (SM) radiofrequency ablation (RFA) as a no-touch ablation technique in the porcine liver. MATERIALS AND METHODS: The animal care and use committee approved this animal study and 16 pigs were used in two independent experiments. In the first experiment, RFA was performed on 2-cm tumor mimickers in the liver using a no-touch technique in the SM mode (2 groups, SM1: 10 minutes, n = 10; SM2: 15 minutes, n = 10) and SB-mode (1 group, SB: 10 minutes, n = 10)...
2017: PloS One
https://www.readbyqxmd.com/read/28445430/impact-of-land-use-on-pm2-5-pollution-in-a-representative-city-of-middle-china
#2
Haiou Yang, Wenbo Chen, Zhaofeng Liang
Fine particulate matter (PM2.5) pollution has become one of the greatest urban issues in China. Studies have shown that PM2.5 pollution is strongly related to the land use pattern at the micro-scale and optimizing the land use pattern has been suggested as an approach to mitigate PM2.5 pollution. However, there are only a few researches analyzing the effect of land use on PM2.5 pollution. This paper employed land use regression (LUR) models and statistical analysis to explore the effect of land use on PM2.5 pollution in urban areas...
April 26, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28445260/association-of-caga-epiya-d-or-epiya-c-phosphorylation-sites-with-peptic-ulcer-and-gastric-cancer-risks-a-meta-analysis
#3
Qiuping Li, Jingwei Liu, Yuehua Gong, Yuan Yuan
BACKGROUND: Increasingly, studies have focused on the relationship between Helicobacter pylori (H pylori) cytotoxin associated gene A protein (CagA) Glu-Pro-Ile-Tyr-Ala (EPIYA)-D motifs or multiple EPIYA-C phosphorylation sites and peptic ulcer disease (PUD) or gastric cancer (GC) risk. However, the conclusions have been inconsistent. The aim of this meta-analysis was to evaluate whether 1 CagA EPIYA-D motif or multiple EPIYA-C phosphorylation sites were associated with PUD or GC risk...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445095/physiological-versus-biological-control-in-bivalve-calcite-prisms-comparison-of-euheterodonts-and-pteriomorphs
#4
Elizabeth M Harper, Antonio Checa
Multiple groups of bivalve molluscs produce calcitic shell layers, many of these broadly classified as "prismatic." Various pteriomorphian bivalves (such as oysters, pterioids, and mussels) secrete prismatic microstructures with high organic content and clear, strong biological control. However, we present the results of a detailed analysis by scanning electron microscopy (SEM), thermogravimetric analysis, and electron backscatter diffraction to characterize the calcitic prisms in two different clades within the euheterodont bivalves: the extant Chama arcana and the extinct rudists...
February 2017: Biological Bulletin
https://www.readbyqxmd.com/read/28445065/neomacrophorin-x-a-4-4-3-propellane-type-meroterpenoid-from-trichoderma-sp-1212-03
#5
Kazuaki Kusakabe, Yuna Honmura, Shota Uesugi, Akio Tonouchi, Hayato Maeda, Ken-Ichi Kimura, Hiroyuki Koshino, Masaru Hashimoto
Neomacrophorin X (1) was isolated from Trichoderma sp. 1212-03. Heteronuclear multiple bond correlation (HMBC) spectral analysis indicated a unique [4.4.3]propellane framework, which was verified by the (1)H and (13)C chemical shift calculations based on density functional theory (DFT) and subsequent comparison with experimental data obtained in CDCl3. The DFT-based electronic circular dichroism (ECD) calculations were effective in not only determining the absolute configuration but also confirming the relative structure...
April 26, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28444772/multi-atlas-approach-with-local-registration-goodness-weighting-for-mri-based-electron-density-mapping-of-head-and-neck-anatomy
#6
Reza Farjam, Neelam Tyagi, Harini Veeraraghavan, Aditya Apte, Kristen Zakian, Margie A Hunt, Joseph O Deasy
PURPOSE: The growing use of magnetic resonance imaging (MRI) as a substitute for computed tomography-based treatment planning requires the development of effective algorithms to generate electron density maps for treatment planning and patient setup verification. The purpose of this work was to develop a method to synthesize computerized tomography (CT) for MR-only radiotherapy of head and neck cancer patients. METHODS: The algorithm is based on registration of multiple patient datasets containing both MRI and CT images (a "multi-atlas" algorithm)...
April 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/28444499/hair-trace-element-and-electrolyte-content-in-women-with-natural-and-in-vitro-fertilization-induced-pregnancy
#7
Anatoly V Skalny, Alexey A Tinkov, Irina Voronina, Olga Terekhina, Margarita G Skalnaya, Yulia Kovas
The objective of the present study was to perform comparative analysis of hair trace element content in women with natural and in vitro fertilization (IVF)-induced pregnancy. Hair trace element content in 33 women with IVF-induced pregnancy and 99 age- and body mass index-matched control pregnant women (natural pregnancy) was assessed using inductively coupled plasma mass spectrometry. The results demonstrated that IVF-pregnant women are characterized by significantly lower hair levels of Cu, Fe, Si, Zn, Ca, Mg, and Ba at p < 0...
April 25, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28444426/investigation-of-altered-microstructure-in-patients-with-drug-refractory-epilepsy-using-diffusion-tensor-imaging
#8
Yuwei Jiang, Lingyan Mao, Xu Yan, Mingxia Fan, Xin Wang, Jing Ding, Dongrong Xu
PURPOSE: The risk of refractory epilepsy can be more dangerous than the adverse effect caused by medical treatment. In this study, we employed voxel-wise analysis (VWA) and tract-based spatial statistics (TBSS) methods to measure microstructural changes using diffusion tensor imaging (DTI) in patients of drug refractory epilepsy (DRE) who had been epileptic for more than 10 years. METHODS: To examine the specific microstructural abnormalities in DRE patients and its difference from medically controlled epilepsy (MCE), we acquired DTI data of 7 DRE patients, 37 MCE patients, and 31 healthy controls (HCs) using a 3 T MRI scanner...
April 25, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28444210/initial-shunt-type-at-the-norwood-operation-impacts-myocardial-function-in-hypoplastic-left-heart-syndrome%C3%A2
#9
Hanna K Ruotsalainen, Jaana Pihkala, Jukka Salminen, Lisa K Hornberger, Heikki Sairanen, Tiina Ojala
OBJECTIVES: We investigated the impact of initial shunt type, a Blalock-Taussig (BT) shunt versus a right ventricle to pulmonary artery conduit (RV-PA) on myocardial function at different stages of surgical palliation in patients with hypoplastic left heart syndrome (HLHS). METHODS: A population-based cohort of 63 Finnish children with HLHS (BT n  = 23, RV-PA n  = 40) born between 2003 and 2010 were studied retrospectively by echocardiography prior to Stages 1, 2 and 3 palliation and 0...
April 24, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28444123/a-comparison-of-four-computerized-neurocognitive-assessment-tools%C3%A2-to-a-traditional-neuropsychological-test-battery-in-service-members-with-and-without-mild-traumatic-brain-injury
#10
Wesley R Cole, Jacques P Arrieux, Brian J Ivins, Karen A Schwab, Felicia M Qashu
Objective: Computerized neurocognitive assessment tools (NCATS) are often used as a screening tool to identify cognitive deficits after mild traumatic brain injury (mTBI). However, differing methodology across studies renders it difficult to identify a consensus regarding the validity of NCATs. Thus, studies where multiple NCATs are administered in the same sample using the same methodology are warranted. Method: We investigated the validity of four NCATs: the ANAM4, CNS-VS, CogState, and ImPACT...
April 24, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28444004/relation-between-hiv-status-risky-sexual-behavior-and-mental-health-in-an-msm-sample-from-three-chilean-cities
#11
Fabiola Gómez, Jaime Barrientos, Manuel Cárdenas
Objective: To explore the association among HIV status; negative psychological symptoms (anxiety, depression, and hostility); and risky sexual behaviors (multiple sexual partners and unprotected sexual intercourse) in a Chilean sample of men who have sex with men (MSM). Methods: This study had a cross-sectional design and a sample of 325 MSM whose ages ranged from 18 to 64 years (mean: 30.8; standard deviation: 9.8). Association tests (chi-squared) and group mean comparisons (Student's t-tests and F-tests) were performed...
April 20, 2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28443803/a-strategy-for-early-risk-predictions-of-clinical-drug-drug-interactions-involving-the-gastroplus-tm-ddi-module-for-time-dependent-cyp-inhibitors
#12
Anna-Karin Sohlenius-Sternbeck, Gabrielle Meyerson, Ann-Louise Hagbjörk, Sanja Juric, Ylva Terelius
1. A set of reference compounds for time-dependent inhibition (TDI) of cytochrome P450 with available literature data for kinact and KI was used to predict clinical implications using the GastroPlus(TM) software. Comparisons were made to in vivo literature interaction data. 2. The predicted AUC ratios (AUC+inhibitor/AUCcontrol) could be compared with the observed ratios from literature for all compounds with detailed information about in vivo administration, pharmacokinetics and in vivo interactions (N = 21)...
April 26, 2017: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
https://www.readbyqxmd.com/read/28442952/comparison-of-onset-anesthesia-time-and-injection-discomfort-of-4-articaine-and-2-mepivacaine-during-teeth-extractions
#13
Giath Gazal, Rashdan Alharbi, Wamiq Musheer Fareed, Esam Omar, Albraa Badr Alolayan, Hassan Al-Zoubi, Ahmad A Alnazzawi
OBJECTIVE: To investigate the speed of action and injection discomfort of 4% articaine and 2% mepivacaine for upper teeth extractions. MATERIALS AND METHODS: Forty-five patients were included in the articaine 4% group, and 45 in the mepivacaine 2% control group. After all injections, soft and hard tissue numbness was objectively gauged by dental probe at intervals of 15 s. Furthermore, the discomfort of the injections were recorded by the patients after each treatment on standard 100 mm visual analog scales, tagged at the endpoints with "no pain" (0 mm) and "unbearable pain" (100 mm)...
April 2017: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/28442942/comparison-in-the-quality-of-distractors-in-three-and-four-options-type-of-multiple-choice-questions
#14
Nourelhouda A A Rahma, Mahdi M A Shamad, Muawia E A Idris, Omer Abdelgadir Elfaki, Walyedldin E M Elfakey, Karimeldin M A Salih
INTRODUCTION: The number of distractors needed for high quality multiple choice questions (MCQs) will be determined by many factors. These include firstly whether English language is their mother tongue or a foreign language; secondly whether the instructors who construct the questions are experts or not; thirdly the time spent on constructing the options is also an important factor. It has been observed by Tarrant et al that more time is often spent on constructing questions than on tailoring sound, reliable, and valid distractors...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28442800/what-puts-them-at-risk-a-cross-sectional-case-control-survey-of-demographic-profile-and-sexual-behavior-of-patients-with-sexually-transmitted-infections-at-a-tertiary-care-center-in-north-india
#15
Rama Raj, Vishal Gupta, Mona Pathak, Vishnubhatla Sreenivas, Seema Sood, Sarman Singh, Kaushal K Verma, Neena Khanna, Bimal K Das, Somesh Gupta
BACKGROUND: Sexually transmitted infections (STIs) are a major public health problem in developing nations. Identification of risk factors can help in formulating effective strategies against them. The present study was conducted in a tertiary care hospital in North India over 1 year to identify the risk factors associated with STIs. MATERIALS AND METHODS: A questionnaire-based cross-sectional case-control survey was conducted where participants answered questions on demographic details, sexual behavior, and awareness of STIs...
January 2017: Indian Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28442780/the-effect-of-body-composition-and-serum-inflammatory-markers-on-the-functional-muscle-bone-unit-in-premenopausal-women
#16
S M Mueller, I Herter-Aeberli, A C Cepeda-Lopez, M Flück, H H Jung, M Toigo
BACKGROUND/OBJECTIVES: A number of recent studies dealing with the relationship between the effects of high body mass (BM) and fat mass (FM) on bone mass and strength exhibit a range of contrasting variations in their findings. These diverse findings have led to an ongoing controversy as to whether high BM and FM positively or negatively affect bone mass and strength. Excessive fat mass and the associated low-grade inflammation might overturn the higher mechanical stimulus arising from a higher body mass...
April 26, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28442633/positive-end-expiratory-pressure-effect-of-3-high-flow-nasal-cannula-devices
#17
Jing-Chao Luo, Mei-Shan Lu, Zhi-Hong Zhao, Wei Jiang, Biao Xu, Li Weng, Tong Li, Bin Du
BACKGROUND: High-flow nasal cannula (HFNC) is supposed to provide additional PEEP compared with conventional oxygen therapy. However, the exact determinants of this PEEP effect are unclear. We investigated the factors that might affect the PEEP and compared PEEP performance among 3 HFNC devices. METHODS: Three available HFNC devices were evaluated: the AIRVO 2 device and 2 mechanical ventilators (SV300 and Monnal T75). A device consisting of a test lung (5600i) and an airway model (AMT(IE)) was used to simulate spontaneous breathing...
April 25, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28442359/emg-biofeedback-training-in-adult-attention-deficit-hyperactivity-disorder-an-active-control-training
#18
Beatrix Barth, Kerstin Mayer, Ute Strehl, Andreas J Fallgatter, Ann-Christine Ehlis
OBJECTIVE: The present study aimed at revealing neurophysiological effects induced by electromyography (EMG) based biofeedback, considered as a semi-active control condition in neurofeedback studies, in adult attention-deficit/hyperactivity disorder (ADHD) patients. METHODS: 20 adult ADHD patients trained their muscle activity in the left and right supraspinatus muscle over the course of 30 EMG biofeedback sessions. Changes induced by the EMG feedback were evaluated at a clinical and neurophysiological level; additionally, the relation between changes in EEG activity recorded at the vertex over the training course and changes of symptom severity over the treatment course were assessed in order to investigate the mechanisms underlying clinical effects of EMG biofeedback...
April 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28441933/identification-and-biochemical-characterization-of-the-fructokinase-gene-family-in-arabidopsis-thaliana
#19
John W Riggs, Philip C Cavales, Sonia M Chapiro, Judy Callis
BACKGROUND: Fructose is an abundant sugar in plants as it is a breakdown product of both major sucrose-cleaving enzymes. To enter metabolism, fructose is phosphorylated by a fructokinase (FRK). Known FRKs are members of a diverse family of carbohydrate/purine kinases known as the phosphofructokinase B (pfkB) family. The complete complement of active fructokinases has not been reported for any plant species. RESULTS: Protein sequence analysis of the 22 Arabidopsis thaliana pfkB members identified eight highly related predicted proteins, including one with previously demonstrated FRK activity...
April 26, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28441159/application-of-high-speed-t1-sequences-for-high-quality-hepatic-arterial-phase-magnetic-resonance-imaging-intraindividual-comparison-of-single-and-multiple-arterial-phases
#20
Yang Shin Park, Chang Hee Lee, Jeong Woo Kim, Young-Sun Lee, MunYoung Paek, Kyeong Ah Kim
PURPOSE: The aim of this study was to compare intraindividual single and multiple arterial phase acquisitions and evaluate which acquisition method was more advantageous for obtaining high-quality hepatic arterial phase in gadoxetic acid-enhanced liver magnetic resonance imaging (MRI). MATERIALS AND METHODS: Sixty-seven patients who underwent gadoxetic acid-enhanced liver MRIs and had all 3 kinds of acquisitions (single, dual, and triple arterial phases) were retrospectively included...
April 24, 2017: Investigative Radiology
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