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https://www.readbyqxmd.com/read/28097673/schoolyard-shade-and-sun-exposure-assessment-of-personal-monitoring-during-children-s-physical-activity
#1
Jennifer K Vanos, Grant R McKercher, Kylie Naughton, Marc Lochbaum
Childhood exposure to ultraviolet radiation (UVR) is a major risk factor for the development of melanoma later in life. However, it is challenging to accurately determine personal outdoor exposure to UVR, specifically erythemally-weighted UVR (UVEry ), due to technological constraints, variable time-activity patterns, and the influence of outdoor environmental design. To address this challenge, the current study utilized mobile and stationary techniques to examine the UVEry exposures of 14 children in a schoolyard in Lubbock, TX in spring 2016...
January 18, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28088797/automated-interpretation-of-pulmonary-function-tests-in-adults-with-respiratory-complaints
#2
Marko Topalovic, Stefan Laval, Jean-Marie Aerts, Thierry Troosters, Marc Decramer, Wim Janssens
BACKGROUND: The use of pulmonary function tests is primarily based on expert opinion and international guidelines. Current interpretation strategies are using predefined cutoffs for the description of a typical pattern. OBJECTIVES: We aimed to explore the predicted disease outcome based on the American Thoracic Society/European Respiratory Society (ATS/ERS) interpreting strategy. Subsequently, we investigated whether an unbiased machine learning framework integrating lung function with clinical variables may provide alternative decision trees resulting in a more accurate diagnosis...
January 12, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28087437/hydrogen-rich-saline-attenuates-hippocampus-endoplasmic-reticulum-stress-after-cardiac-arrest-in-rats
#3
Yu Gao, Qinfang Gui, Li Jin, Pan Yu, Lin Wu, Liangbin Cao, Qiang Wang, Manlin Duan
BACKGROUND: Hydrogen-rich saline can selectively scavenge reactive oxygen species (ROS) and protect brain against ischemia reperfusion (I/R) injury. Endoplasmic reticulum stress (ERS) has been implicated in the pathological process of cerebral ischemia. However, very little is known about the role of hydrogen-rich saline in mediating pathophysiological reactions to ERS after I/R injury caused by cardiac arrest. METHODS: The rats were randomly divided into three groups, sham group (n=30), ischemia/reperfusion group (n=40) and hydrogen-rich saline group (n=40)...
January 10, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28087301/molecular-characterization-and-quantification-of-estrogen-receptors-in-turbot-scophthalmus-maximus
#4
Peng Hu, Zheng Meng, Yudong Jia
Estrogens regulate various reproductive processes via estrogen receptor (ER)-mediated signaling pathway in vertebrates. In this study, full-length sequences coding for ERα, ERβ1 and ERβ2 were isolated from female turbot (Scophthalmus maximus) by homology cloning and a strategy based on rapid amplification of cDNA end-polymerase chain reaction (RACE-PCR). The nucleotide and amino acid sequences of turbot ERs showed high homologies with the corresponding sequences of other fish species and significant homology with the Japaenese flounder (Paralichthys olivaceus) and the European sea bass (Dicentrarchus labrax)...
January 10, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28081472/endoplasmic-reticulum-stress-and-apoptosis-via-perk-eif2%C3%AE-chop-signaling-in-the-methamphetamine-induced-chronic-pulmonary-injury
#5
Yu-Han Gu, Yun Wang, Yang Bai, Ming Liu, Huai-Liang Wang
Methamphetamine (MA) leads to multiple organs lesions and apoptosis. The aim of this study is to investigate if endoplasmic reticulum stress (ERS) - initiated apoptosis is involved in the chronic pulmonary injury induced by MA. In this study, rats were divided into a control group, methamphetamine 5mg/kg group and methamphetamine 10mg/kg group. This study found that the protein level of GRP78 is higher in M10 group than in control group. PERK signaling and the relevant apoptosis factors were also activated...
January 3, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28077816/incidence-of-atrial-tachyarrhythmias-in-patients-with-early-repolarization-syndrome
#6
Ki Won Hwang, Gi-Byoung Nam, Junhee Han, Yong Giun Kim, Hyung Oh Choi, Jun Kim, Kee-Joon Choi, You-Ho Kim
Atrial tachyarrhythmias (ATAs) occur in a significant proportion of Brugada syndrome (BrS) patients and are often an important cause of inappropriate shocks. The aim of this retrospective study was to evaluate the incidence of ATAs and ATA-induced inappropriate shocks in early repolarization syndrome (ERS) patients as compared to BrS patients.We analyzed data from 20 consecutive patients who were diagnosed with ERS and compared them with patients diagnosed with BrS (n = 31). Clinical and ICD interrogation data were collected and analyzed for all events with ICD shocks...
January 11, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28077473/a-joint-ers-ats-policy-statement-what-constitutes-an-adverse-health-effect-of-air-pollution-an-analytical-framework
#7
George D Thurston, Howard Kipen, Isabella Annesi-Maesano, John Balmes, Robert D Brook, Kevin Cromar, Sara De Matteis, Francesco Forastiere, Bertil Forsberg, Mark W Frampton, Jonathan Grigg, Dick Heederik, Frank J Kelly, Nino Kuenzli, Robert Laumbach, Annette Peters, Sanjay T Rajagopalan, David Rich, Beate Ritz, Jonathan M Samet, Thomas Sandstrom, Torben Sigsgaard, Jordi Sunyer, Bert Brunekreef
The American Thoracic Society has previously published statements on what constitutes an adverse effect on health of air pollution in 1985 and 2000. We set out to update and broaden these past statements that focused primarily on effects on the respiratory system. Since then, many studies have documented effects of air pollution on other organ systems, such as on the cardiovascular and central nervous systems. In addition, many new biomarkers of effects have been developed and applied in air pollution studies...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28077278/oscillatory-eeg-activity-induced-by-conditioning-stimuli-during-fear-conditioning-reflects-salience-and-valence-of-these-stimuli-more-than-expectancy
#8
J H Chien, L Colloca, A Korzeniewska, J J Cheng, C M Campbell, A E Hillis, F A Lenz
Imaging studies have described hemodynamic activity during fear conditioning protocols with stimulus trains in which a visual conditioned stimulus (CS+) is paired with an aversive unconditioned stimulus (US, painful laser pulse) while another visual stimulus is unpaired (CS-). We now test the hypothesis that CS Event Related Spectral Perturbations (ERSPs) are related to ratings of CS Expectancy (likelihood of pairing with the US), Valence (unpleasantness) and Salience (ability to capture attention). ERSP windows in EEG were defined by both time after the CS and frequency, and showed increased oscillatory power (Event Related Synchronization, ERS) in the delta/theta Windows (0-8 Hz) and the gamma Window (30-55 Hz)...
January 7, 2017: Neuroscience
https://www.readbyqxmd.com/read/28064160/specific-heparanase-inhibition-reverses-glucose-induced-mesothelial-to-mesenchymal-transition
#9
Valentina Masola, Simona Granata, Gloria Bellin, Giovanni Gambaro, Maurizio Onisto, Carlo Rugiu, Antonio Lupo, Gianluigi Zaza
BACKGROUND: Epithelial-to-mesenchymal transition (EMT) of peritoneal mesothelial cells induced by high glucose (HG) levels is a major biological mechanism leading to myofibroblast accumulation in the omentum of patients on peritoneal dialysis (PD). Heparanase (HPSE), an endoglycosidase that cleaves heparan sulfate chains, is involved in the EMT of several cell lines, and may have a major role in this pro-fibrotic process potentially responsible for the failure of dialysis. Its specific inhibition may therefore plausibly minimize this pathological condition...
January 7, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28064095/indomethacin-electrospun-nanofibers-for-colonic-drug-delivery-in-vitro-dissolution-studies
#10
Abbas Akhgari, Zohreh Heshmati, Hadi Afrasiabi Garekani, Fatemeh Sadeghi, Atena Sabbagh, Behzad Sharif Makhmalzadeh, Ali Nokhodchi
Generally, although the conventional drug delivery systems, such as using only pH-dependent polymers or time-dependent release systems are popular, the individuals' variations of physiological conditions usually lead to premature or imperfect drug release from each of these systems. Therefore, a combination of pH- and time-dependent polymers could be more reliable for delivering drugs to the lower GI tract such as colon. To this end, electrospinning method was used as a fabrication approach for preparing electrospun nanofibers of indomethacin aimed for colon delivery...
December 23, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28061972/estrogen-receptors-modulation-of-anxiety-like-behavior
#11
A P Borrow, R J Handa
Estrogens exert profound effects on the expression of anxiety in humans and rodents; however, the directionality of these effects varies considerably within both clinical and preclinical literature. It is believed that discrepancies regarding the nature of estrogens' effects on anxiety are attributable to the differential effects of specific estrogen receptor (ER) subtypes. In this chapter we will discuss the relative impact on anxiety and anxiety-like behavior of each of the three main ERs: ERα, which has a generally anxiogenic effect, ERβ, which has a generally anxiolytic effect, and the G-protein-coupled ER known as GPR30, which has been found to both increase and decrease anxiety-like behavior...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28061781/exploring-the-implementation-of-an-electronic-record-into-a-maternity-unit-a-qualitative-study-using-normalisation-process-theory
#12
Arabella Scantlebury, Laura Sheard, Ian Watt, Paul Cairns, John Wright, Joy Adamson
BACKGROUND: To explore the benefits, barriers and disadvantages of implementing an electronic record system (ERS). The extent that the system has become 'normalised' into routine practice was also explored. METHODS: Qualitative semi-structured interviews were conducted with 19 members of NHS staff who represented a variety of staff groups (doctors, midwives of different grades, health care assistants) and wards within a maternity unit at a NHS teaching hospital...
January 7, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28060708/characterization-and-decoding-the-spatial-patterns-of-hand-extension-flexion-using-high-density-ecog
#13
Tianxiao Jiang, Tao Jiang, Taylor Wang, Shanshan Mei, Qingzhu Liu, Yunlin Li, Xiaofei Wang, Sujit Prabhu, Zhiyi Sha, Nuri F Ince
During awake brain surgeries, electrocorticogram (ECoG) was recorded using a high density electrode grid from the motor cortex of two subjects while they were asked to execute spontaneous hand extension and flexion. Firstly, we characterized the spatio-spectral patterns of high-density ECoG during the hand movements. In both subjects, we observed event related desynchronization (ERD) in low frequency band (LFB:8-32Hz) and event related synchronization (ERS) in high frequency band (HFB:60-200Hz) where HFB-ERS was more spatially localized and movement specific compared to LFB-ERD...
January 4, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
https://www.readbyqxmd.com/read/28049168/2017-ers-ats-standards-for-single-breath-carbon-monoxide-uptake-in-the-lung
#14
Brian L Graham, Vito Brusasco, Felip Burgos, Brendan G Cooper, Robert Jensen, Adrian Kendrick, Neil R MacIntyre, Bruce R Thompson, Jack Wanger
This document provides an update to the European Respiratory Society (ERS)/American Thoracic Society (ATS) technical standards for single-breath carbon monoxide uptake in the lung that was last updated in 2005. Although both DLCO (diffusing capacity) and TLCO (transfer factor) are valid terms to describe the uptake of carbon monoxide in the lung, the term DLCO is used in this document. A joint taskforce appointed by the ERS and ATS reviewed the recent literature on the measurement of DLCO and surveyed the current technical capabilities of instrumentation being manufactured around the world...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28049167/executive-summary-2017-ers-ats-standards-for-single-breath-carbon-monoxide-uptake%C3%A2-in%C3%A2-the-lung
#15
Brian L Graham, Vito Brusasco, Felip Burgos, Brendan G Cooper, Robert Jensen, Adrian Kendrick, Neil R MacIntyre, Bruce R Thompson, Jack Wanger
This document summarises an update to the European Respiratory Society (ERS)/American Thoracic Society (ATS) technical standards for single-breath carbon monoxide uptake in the lung that was last updated in 2005. The full standards are also available online as https://doi.org/10.1183/13993003.00016-2016 The major changes in these technical standards relate to DLCO measurement with systems using rapidly responding gas analysers for carbon monoxide and the tracer gas, which are now the most common type of DLCO instrumentation being manufactured...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28049045/in-vitro-models-reveal-differences-in-the-developmental-neurotoxicity-of-an-environmental-polycylic-aromatic-hydrocarbon-mixture-compared-to-benzo-a-pyrene-neuronotypic-pc12-cells-and-embryonic-neural-stem-cells
#16
Theodore A Slotkin, Samantha Skavicus, Jennifer Card, Richard T Di Giulio, Frederic J Seidler
In addition to their carcinogenic activity, polycyclic aromatic hydrocarbons (PAHs) are suspected to be developmental neurotoxicants. We evaluated the effects of PAHs with two in vitro models that assess distinct "decision nodes" in neurodifferentiation: neuronotypic PC12 cells, which characterize the transition from cell replication to neurodifferentiation, neurite outgrowth and neurotransmitter specification; and embryonic neural stem cells (NSCs), which evaluate the origination of neurons and glia from precursors...
December 31, 2016: Toxicology
https://www.readbyqxmd.com/read/28043987/18f-fluorodeoxyglucose-positron-emission-tomographic-scan-in-solid-type-p-stage-i-pulmonary-adenocarcinomas-what-can-produce-false-negative-results-%C3%A2
#17
Filippo Lococo, Carla Galeone, Debora Formisano, Salvatore Bellafiore, Angelina Filice, Tartaglione Annunziata, Alfredo Cesario, Cristian Rapicetta, Federica Fioroni, Tommaso Ricchetti, Massimiliano Paci
OBJECTIVE: False-negative (FN) uptake of 18F-fluorodeoxyglucose (FDG) can be divided into those cases related to technological limitations of positron emission tomography (PET) and those related to inherent properties of neoplasms. Our goal was to clarify possible factors causing FN PET results in patients with solid-type pulmonary adenocarcinomas (PAs). METHODS: From January 2007 to December 2014, of the 255 patients with p-stage-1 non-small-cell lung cancer observed and treated (surgically) in our institution, we retrospectively reviewed the PET/computed tomography (CT) records, the clinical information, the preoperative thin-section CT images, and the pathological features [classified by the International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society (IASLC/ATS/ERS) subtyping criteria] of 94 consecutive solid-type p-stage-1 PAs...
January 2, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28043266/-relationship-between-urinary-polycyclic-aromatic-hydrocarbon-metabolite-and-cell-cycle-of-lymphocyte-in-coke-oven-workers
#18
B L Pan, H T Zhang, H J Zhang, W T Chen, J Yang
Objective: To investigate the relationship between urinary polycyclic aromatic hydrocarbon metabolite and cell cycle of lymphocyte in coke oven workers. Methods: 437 coke oven workers and 163 work-ers in water treatment department were recruited in this study. Flow cytometry was used to detect the cell cycle of lymphocyte. For the measurement of urinary metabolites, urine samples were treated with β-glucuronidase and analyzed using HPLC with a fluorescence detector. Results: The concentrations of urinary 2-naphthol, 2-hydroxyfluorene, 9-phenanthrol and 1-hydroxypyrene l in coke oven workers were significantly higher than those in control group (P<0...
November 20, 2016: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28041951/the-role-of-sex-hormones-and-steroid-receptors-on-female-reproductive-cancers
#19
REVIEW
Luiz Gustavo de Almeida Chuffa, Luiz Antonio Lupi-Júnior, Aline Balandis Costa, João Paulo de Arruda Amorim, Fábio Rodrigues Ferreira Seiva
Sex steroids have been widely described to be associated with a number of human diseases, including hormone-dependent tumors. Several studies have been concerned about the factors regulating the availability of sex steroids and its importance in the pathophysiological aspects of the reproductive cancers in women. In premenopausal women, large fluctuations in the concentration of circulating estradiol (E2) and progesterone (P4) orchestrate many events across the menstrual cycle. After menopause, the levels of circulating E2 and P4 decline but remain at high concentration in the peripheral tissues...
February 2017: Steroids
https://www.readbyqxmd.com/read/28039195/seasonal-expression-of-p450arom-and-estrogen-receptors-in-scented-glands-of-muskrats-ondatra-zibethicus
#20
Haolin Zhang, Lu Lu, Manyu Zhu, Fengwei Zhang, Xia Sheng, Zhengrong Yuan, Yingying Han, Gen Watanabe, Kazuyoshi Taya, Qiang Weng
Male muskrats have one pair of scented glands that grow and involute annually. To investigate the annual changes in the scented gland, we measured the expressions of aromatase cytochrome P450 (P450arom) and estrogen receptors (ERs) in the scented glands. P450arom was expressed in glandular cells and epithelial cells in the scented glands during the breeding season, and only in glandular cells during the non-breeding season. ERα and ERβ were also detected in different types of cells in the scented gland during the breeding and non-breeding seasons...
December 30, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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