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https://www.readbyqxmd.com/read/28339622/augmented-qrs-notching-and-macroscopic-t-wave-alternans-preceding-polymorphic-ventricular-tachycardia-in-a-patient-with-electrical-storm
#1
Shingo Minatoguchi, Nobuhiro Takasugi, Tomoki Kubota, Hiroaki Ushikoshi, Kazuhiko Nishigaki, Shinya Minatoguchi
No abstract text is available yet for this article.
February 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28336085/the-dual-effect-of-vegetation-green-up-date-and-strong-wind-on-the-return-period-of-spring-dust-storms
#2
Jieling Feng, Ning Li, Zhengtao Zhang, Xi Chen
Vegetation phenology changes have been widely applied in the disaster risk assessments of the spring dust storms, and vegetation green-up date shifts have a strong influence on dust storms. However, the effect of earlier vegetation green-up dates due to climate warming on the evaluation of dust storms return periods remains an important, but poorly understood issue. In this study, we evaluate the spring dust storm return period (February to June) in Inner Mongolia, Northern China, using 165 observations of severe spring dust storm events from 16 weather stations, and regional vegetation green-up dates as an integrated factor from NDVI (Normalized Difference Vegetation Index), covering a period from 1982 to 2007, by building the bivariate Copula model...
March 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28333743/climate-change-and-mental-health
#3
Janna Trombley, Stephanie Chalupka, Laura Anderko
: Climate change is an enormous challenge for our communities, our country, and our world. Recently much attention has been paid to the physical impacts of climate change, including extreme heat events, droughts, extreme storms, and rising sea levels. However, much less attention has been paid to the psychological impacts. This article examines the likely psychological impacts of climate change, including anxiety, stress, and depression; increases in violence and aggression; and loss of community identity. Nurses can play a vital role in local and regional climate strategies by preparing their patients, health care facilities, and communities to effectively address the anticipated mental health impacts of climate change...
April 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28332950/spatiotemporal-trend-analysis-of-metal-concentrations-in-sediments-of-a-residential-california-stream-with-toxicity-and-regulatory-implications
#4
Lenwood W Hall, Ronald D Anderson, William D Killen
The objective of this study was to determine if concentrations of arsenic, cadmium, chromium, copper, lead, nickel and zinc measured in the sediments of a residential stream in California (Pleasant Grove Creek) have changed temporally or spatially from 2006 to 2016. Threshold Effect Levels (TELs), conservative ecological effects benchmarks, and exceedances for the seven metals were also evaluated over the 11-year time period to provide insight into potential metal toxicity to resident benthic communities. In addition, the bioavailability of metals in sediments was also determined by calculating Simultaneous Extracted Metal/Acid Volatle Sulfide (SEM/AVS) ratios to allow an additional assessment of toxicity...
March 23, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28331091/ebolaviruses-associated-with-differential-pathogenicity-induce-distinct-host-responses-in-human-macrophages
#5
Judith Olejnik, Adriana Forero, Laure R Deflubé, Adam J Hume, Whitney A Manhart, Andrew Nishida, Andrea Marzi, Michael G Katze, Hideki Ebihara, Angela L Rasmussen, Elke Mühlberger
Ebola virus (EBOV) and Reston virus (RESTV) are members of the Ebolavirus genus which greatly differ in their pathogenicity. While EBOV causes a severe disease in humans characterized by a dysregulated inflammatory response and elevated cytokine and chemokine production, there are no reported disease-associated human cases of RESTV infection, suggesting that RESTV is non-pathogenic for humans. The underlying mechanisms determining the pathogenicity of different ebolavirus species are not yet known. In this study we dissect the host response to EBOV and RESTV infection in primary human monocyte-derived macrophages (MDMs)...
March 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28329712/toxicity-of-effluents-from-gasoline-stations-oil-water-separators-to-early-life-stages-of-zebrafish-danio-rerio
#6
Romulo Nepomuceno Alves, Célio Freire Mariz, Driele Ventura de Paulo, Paulo S M Carvalho
Used petroleum hydrocarbons and gasoline stations runoff are significant sources of polycyclic aromatic hydrocarbons (PAHs) to aquatic ecosystems. Samples of the final effluent of oil-water-separators were collected at gasoline stations in the metropolitan region of Recife, Brazil, before release to sewage or rainwater systems. Effluent soluble fractions (ESF) were prepared and bioassays were performed according to the Fish Embryo Toxicity Test. The test involved exposing zebrafish Danio rerio embryos to dilutions of the ESFs for 96 h, with daily examination of lethality and sublethal morphological effects integrated through the General Morphology Score (GMS), based on the achievement of developmental hallmarks...
March 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28328539/polarization-sensitive-localization-based-super-resolution-microscopy-with-a-birefringent-wedge
#7
József Sinkó, Tamás Gajdos, Elvira Czvik, Gábor Szabó, Miklós Erdélyi
A practical method has been presented for polarization sensitive localization based super-resolution microscopy using a birefringent dual wedge. The measurement of the polarization degree at the single molecule level can reveal the chemical and physical properties of the local environment of the fluorescent dye molecule and can hence provide information about the sub-diffraction sized structure of biological samples. Polarization sensitive STORM imaging of the F-Actins proved correlation between the orientation of fluorescent dipoles and the axis of the fibril...
March 22, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28327638/conditional-deletion-of-ndufs4-in-dopaminergic-neurons-promotes-parkinson-s-disease-like-non-motor-symptoms-without-loss-of-dopamine-neurons
#8
Won-Seok Choi, Hyung-Wook Kim, François Tronche, Richard D Palmiter, Daniel R Storm, Zhengui Xia
Reduction of mitochondrial complex I activity is one of the major hypotheses for dopaminergic neuron death in Parkinson's disease. However, reduction of complex I activity in all cells or selectively in dopaminergic neurons via conditional deletion of the Ndufs4 gene, a subunit of the mitochondrial complex I, does not cause dopaminergic neuron death or motor impairment. Here, we investigated the effect of reduced complex I activity on non-motor symptoms associated with Parkinson's disease using conditional knockout (cKO) mice in which Ndufs4 was selectively deleted in dopaminergic neurons (Ndufs4 cKO)...
March 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28325863/pharmacological-targeting-of-plasmin-prevents-lethality-in-a-murine-model-of-macrophage-activation-syndrome
#9
Hiroshi Shimazu, Shinya Munakata, Yoshihiko Tashiro, Yousef Salama, Douaa Dhahri, Salita Eiamboonsert, Yasunori Ota, Haruo Onoda, Yuko Tsuda, Yoshio Okada, Hiromitsu Nakauchi, Beate Heissig, Koichi Hattori
Macrophage activation syndrome (MAS) is a life-threatening disorder characterized by a cytokine storm and multiorgan dysfunction due to excessive immune activation. Although abnormalities of coagulation and fibrinolysis are major components of MAS, the role of the fibrinolytic system and its key player, plasmin, in the development of MAS remains to be solved. We established a murine model of fulminant MAS by repeated injections of Toll-like receptor-9 (TLR-9) agonist and D-galactosamine (DG) in immunocompetent mice...
March 21, 2017: Blood
https://www.readbyqxmd.com/read/28325534/association-between-meteorological-factors-and-hepatitis-a-in-spain-2010-2014
#10
Pedro Gullón, Carmen Varela, Elena Vanessa Martínez, Diana Gómez-Barroso
BACKGROUND: There is growing concern of how climate change could affect public health, due to the increase number of extreme climate events. Hence, the study of the role that climate events play on the distribution of waterborne diseases, like Hepatitis A, could be key for developing new prevention approaches. OBJECTIVE: To investigate the association between climate factors and Hepatitis A in Spain between 2010 and 2014. METHODS: Weekly Hepatitis A cases between 2010 and 2014 were obtained from the Spanish Epidemiology Surveillance Network...
March 18, 2017: Environment International
https://www.readbyqxmd.com/read/28325173/patterns-and-processes-influencing-helminth-parasites-of-arctic-coastal-communities-during-climate-change
#11
K V Galaktionov
This review analyses the scarce available data on biodiversity and transmission of helminths in Arctic coastal ecosystems and the potential impact of climate changes on them. The focus is on the helminths of seabirds, dominant parasites in coastal ecosystems. Their fauna in the Arctic is depauperate because of the lack of suitable intermediate hosts and unfavourable conditions for species with free-living larvae. An increasing proportion of crustaceans in the diet of Arctic seabirds would result in a higher infection intensity of cestodes and acanthocephalans, and may also promote the infection of seabirds with non-specific helminths...
March 22, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28324648/influence-of-modern-stormwater-management-practices-on-transport-of-road-salt-to-surface-waters
#12
Joel W Snodgrass, Joel Moore, Steven M Lev, Ryan E Casey, David R Ownby, Robert F Flora, Grant Izzo
Application of road salts in regions with colder climates is leading to ground and surface water contamination. However, we know little about how modern stormwater management practices affect the movement of road salt through urban watersheds. We investigated groundwater contamination and transport of road salts at two stormwater ponds in Baltimore County, Maryland. In association with the ponds, we documented a plume of contaminated groundwater that resulted in Cl- loadings to the adjacent stream of 6,574 to 40,008 kg Cl- per winter, depending on winter snowfall...
March 21, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28322176/gender-regimes-in-ontario-nursing-homes-organization-daily-work-and-bodies
#13
Palle Storm, Susan Braedley, Sally Chivers
Today more men work in the long-term care sector, but men are still in the minority. Little is known about men's experiences in care work, and the dilemmas and opportunities they face because of their gender. This article focuses on men care workers' integration into the organization and flow of nursing home work as perceived by these workers and staff members. Using a rapid ethnography method in two Ontario nursing homes, we found work organization affected interpretations of gender and race, and that workers' scope for discretion affected the integration and acceptance of men as care workers...
March 21, 2017: Canadian Journal on Aging, la Revue Canadienne du Vieillissement
https://www.readbyqxmd.com/read/28320942/egf-and-nrg-induce-phosphorylation-of-her3-erbb3-by-egfr-using-distinct-oligomeric-mechanisms
#14
Bettina van Lengerich, Christopher Agnew, Elias M Puchner, Bo Huang, Natalia Jura
Heteromeric interactions between the catalytically impaired human epidermal growth factor receptor (HER3/ERBB3) and its catalytically active homologs EGFR and HER2 are essential for their signaling. Different ligands can activate these receptor pairs but lead to divergent signaling outcomes through mechanisms that remain largely unknown. We used stochastic optical reconstruction microscopy (STORM) with pair-correlation analysis to show that EGF and neuregulin (NRG) can induce different extents of HER3 clustering that are dependent on the nature of the coexpressed HER receptor...
March 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28320831/interference-of-the-t-cell-and-antigen-presenting-cell-costimulatory-pathway-using-ctla4-ig-abatacept-prevents-staphylococcal-enterotoxin-b-pathology
#15
Sarah J C Whitfield, Chris Taylor, Jane E Risdall, Gareth D Griffiths, James T A Jones, E Diane Williamson, Sjoerd Rijpkema, Luisa Saraiva, Sandrine Vessillier, A Christopher Green, Alun J Carter
Staphylococcal enterotoxin B (SEB) is a bacterial superantigen that binds the receptors in the APC/T cell synapse and causes increased proliferation of T cells and a cytokine storm syndrome in vivo. Exposure to the toxin can be lethal and cause significant pathology in humans. The lack of effective therapies for SEB exposure remains an area of concern, particularly in scenarios of acute mass casualties. We hypothesized that blockade of the T cell costimulatory signal by the CTLA4-Ig synthetic protein (abatacept) could prevent SEB-dependent pathology...
March 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28319287/iatrogenic-thyrotoxicosis-and-the-role-of-therapeutic-plasma-exchange
#16
Kabeer K Shah, Michael M Mbughuni, Edwin A Burgstaler, Darci R Block, Jeffrey L Winters
Thyroid storm or severe thyrotoxicosis results from extreme thyroid hormone elevation. Therapy includes medical management to prevent hormone production, release, recycling, and peripheral conversion while stabilizing adrenergic tone. Thyroid dysfunction is the usual cause but it can be due to excessive thyroid hormone ingestion. Therapeutic plasma exchange (TPE) has been used to rapidly remove protein-bound thyroid hormone. American Society for Apheresis guidelines make a weak recommendation to perform TPE in selected patients in the treatment of thyrotoxicosis based on low quality evidence...
March 20, 2017: Journal of Clinical Apheresis
https://www.readbyqxmd.com/read/28318674/organ-donor-management-eight-common-recommendations-and-actions-that-deserve-reflection
#17
C Chamorro-Jambrina, M R Muñoz-Ramírez, J L Martínez-Melgar, M S Pérez-Cornejo
Despite major advances in our understanding of the physiopathology of brain death (BD), there are important controversies as to which protocol is the most appropriate for organ donor management. Many recent reviews on this subject offer recommendations that are sometimes contradictory and in some cases are not applied to other critically ill patients. This article offers a review of the publications (many of them recent) with an impact upon these controversial measures and which can help to confirm, refute or open new areas of research into the most appropriate measures for the management of organ donors in BD, and which should contribute to discard certain established recommendations based on preconceived ideas, that lead to actions lacking a physiopathological basis...
March 16, 2017: Medicina Intensiva
https://www.readbyqxmd.com/read/28316899/water-quality-assessment-in-the-german-river-of-the-years-2014-2015-how-a-case-study-on-the-impact-of-a-storm-water-sedimentation-basin-displayed-impairment-of-fish-health-in-the-argen-river-southern-germany
#18
Paul Thellmann, Bertram Kuch, Karl Wurm, Heinz-R Köhler, Rita Triebskorn
BACKGROUND: The present work investigates the impact of discharges from a storm water sedimentation basin (SSB) receiving runoff from a connected motorway in southern Germany. The study lasted for almost two years and was aimed at assessing the impact of the SSB on the fauna of the Argen River, which is a tributary of Lake Constance. Two sampling sites were examined up- and downstream of the SSB effluent. A combination of different diagnostic methods (fish embryo test with the zebrafish, histopathology, micronucleus test) was applied to investigate health impairment and genotoxic effects in indigenous fish as well as embryotoxic potentials in surface water and sediment samples of the Argen River, respectively, in samples of the SSB effluent...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28314850/temporal-trends-and-temperature-related-incidence-of-electrical-storm-the-tempest-study-temperature-related-incidence-of-electrical-storm
#19
Federico Guerra, Paolo Bonelli, Marco Flori, Laura Cipolletta, Corrado Carbucicchio, Maite Izquierdo, Edward Kozluk, Kalyanam Shivkumar, Marmar Vaseghi, Francesca Patani, Claudio Cupido, Salvatore Pala, Ricardo Ruiz-Granell, Angel Ferrero, Claudio Tondo, Alessandro Capucci
BACKGROUND: The occurrence of ventricular tachyarrhythmias seems to follow circadian, daily, and seasonal distributions. Our aim is to identify potential temporal patterns of electrical storm (ES), in which a cluster of ventricular tachycardias or ventricular fibrillation, negatively affects short- and long-term survival. METHODS AND RESULTS: The TEMPEST study (Circannual Pattern and Temperature-Related Incidence of Electrical Storm) is a patient-level, pooled analysis of previously published data sets...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28314846/circadian-and-weekly-patterns-of-electrical-storm-a-role-for-stress
#20
EDITORIAL
Eric J Berkowitz, Rachel Lampert
No abstract text is available yet for this article.
March 2017: Circulation. Arrhythmia and Electrophysiology
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