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Marta Crous-Bou, Laura B Harrington, Christopher Kabrhel
Venous thromboembolism (VTE) includes deep vein thrombosis and pulmonary embolism, and a combination of environmental and genetic risk factors contributes to VTE risk. Within environmental risk factors, some are provoking (e.g., cancer, surgery, trauma or fracture, immobilization, pregnancy and the postpartum period, long-distance travel, hospitalization, catheterization, and acute infection) and others are nonprovoking (e.g., age, sex, race/ethnicity, body mass index and obesity, oral contraceptive or hormone therapy use, corticosteroid use, statin use, diet, physical activity, sedentary time, and air pollution)...
October 20, 2016: Seminars in Thrombosis and Hemostasis
Nicolina E Savvaidou, Lazaros C Triarhou
Professor Emil Redlich (1866-1930) of the University of Vienna was born 150 years ago. Raised in a humble environment, he became an eminent researcher and neurology scholar, and succeeded in laying some of the key foundations of neuroanatomy and neuropathology. His name is linked to medical eponyms that define the dorsal root entry zone into the spinal cord, epidemic disseminated encephalomyelitis, narcolepsy, senile plaques and dementia. As its first director, he managed to organize the Maria-Theresien-Schlössel into a first-class neuropsychiatric hospital...
October 21, 2016: European Neurology
Gang Bao, Chuankun Li, Lei Qi, Ning Wang, Baixiang He
Tetrandrine (TET) is a bis-benzylisoquinoline alkaloid, which is isolated from a Chinese medicinal herb with antioxidant and anti-inflammatory activities. In this study, we investigated the effects of TET on oxygen-glucose-serum deprivation/reoxygenation (OGSD/R)-induced injury in rat spinal cord astrocytes, which mimics hypoxic/ischemic conditions in vivo. MTT and LDH assays indicated that cell viability was distinctly reduced and LDH leakage was elevated after OGSD/R exposure, which were dose-dependently reversed by pretreatment with TET (0...
October 17, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Y Nouma, W Ben Amar, M Zribi, S Bardaa, Z Hammami, S Maatoug
We report a case of a Tunisian footballer who was found dead abroad under suspicious circumstances. The cause of death was, originally, attributed to a lightning strike. The corpse was buried without/autopsy. Over thirty years later, the family requested the exhumation to verify the identity and the cause of death. The exhumation was performed in 2011. DNA profiling from teeth and femur bone samples confirmed the identity of the deceased. The dry bone study revealed defects in the skull and the pelvis evoking firearm injuries...
October 11, 2016: Journal of Forensic and Legal Medicine
Ruijie Zhang, Nana Zhang, Hai Zhang, Chunxiao Liu, Xiaoqing Dong, Xiaoxue Wang, Yu Zhu, Chong Xu, Lei Liu, Sijun Yang, Shile Huang, Long Chen
BACKGROUND AND PURPOSE: Increasing evidence has suggested cadmium (Cd), as an inducer of reactive oxygen species (ROS), is a potential pathogenic factor in human neurodegenerative diseases. Thus, it is important to find effective interventions for Cd-induced oxidative stress in the central nervous system. The purpose of this study was to determine whether and how celastrol, a plant-derived triterpene, could mitigate Cd-induced ROS and cell death in neuronal cells. EXPERIMENTAL APPROACH: PC12, SH-SY5Y cells and primary murine neurons were chosen as a model to study celastrol neuroprotection against Cd-poisoning...
October 20, 2016: British Journal of Pharmacology
A Hosseini, H R Sadeghnia, A Rajabian
Oxidative stress and apoptosis contribute to neuronal degeneration in many neurodegenerative diseases such as Alzheimer's disease. Glutamate is a major excitatory neurotransmitter in the central nervous system (CNS) and is considered responsible for the pathogenesis of many neurological disorders. Reactive oxygen species (ROS) production is thought to be involved in glutamate-induced apoptosis process. In this study, the neuroprotective effects of Citrus aurantium in the glutamate-induced rat's adrenal pheochromocytoma cell line (PC12 cells) were investigated...
2016: Folia Neuropathologica
Christoph Baldow, Lars Thielecke, Ingmar Glauche
The availability of several methods to unambiguously mark individual cells has strongly fostered the understanding of clonal developments in hematopoiesis and other stem cell driven regenerative tissues. While cellular barcoding is the method of choice for experimental studies, patients that underwent gene therapy carry a unique insertional mark within the transplanted cells originating from the integration of the retroviral vector. Close monitoring of such patients allows accessing their clonal dynamics, however, the early detection of events that predict monoclonal conversion and potentially the onset of leukemia are beneficial for treatment...
2016: PloS One
Caitlin B O'Hara, Alexandra Keyes, Bethany Renwick, Katrin E Giel, Iain C Campbell, Ulrike Schmidt
In anorexia nervosa (AN), motivational salience is attributed to illness-compatible cues (e.g., underweight and active female bodies) and this is hypothesised to involve dopaminergic reward circuitry. We investigated the effects of reducing dopamine (DA) transmission on the motivational processing of AN-compatible cues in women recovered from AN (AN REC, n = 17) and healthy controls (HC, n = 15). This involved the acute phenylalanine and tyrosine depletion (APTD) procedure and a startle eye-blink modulation (SEM) task...
2016: PloS One
Sebastian Sippel, Holger Lange, Miguel D Mahecha, Michael Hauhs, Paul Bodesheim, Thomas Kaminski, Fabian Gans, Osvaldo A Rosso
Data analysis and model-data comparisons in the environmental sciences require diagnostic measures that quantify time series dynamics and structure, and are robust to noise in observational data. This paper investigates the temporal dynamics of environmental time series using measures quantifying their information content and complexity. The measures are used to classify natural processes on one hand, and to compare models with observations on the other. The present analysis focuses on the global carbon cycle as an area of research in which model-data integration and comparisons are key to improving our understanding of natural phenomena...
2016: PloS One
Lijun Liu, Yongfeng Yin, Zenghu Zhang, Yashwant K Malaiya
Modern infrastructure networks are often coupled together and thus could be modeled as interdependent networks. Overload and interdependent effect make interdependent networks more fragile when suffering from attacks. Existing research has primarily concentrated on the cascading failure process of interdependent networks without load, or the robustness of isolated network with load. Only limited research has been done on the cascading failure process caused by overload in interdependent networks. Redundant design is a primary approach to enhance the reliability and robustness of the system...
2016: PloS One
Xianbo Liu, Xiangjin Wei, Zhonghua Sheng, Guiai Jiao, Shaoqing Tang, Ju Luo, Peisong Hu
Polycomb group (PcG) proteins have been shown to affect growth and development in plants. To further elucidate their role in these processes in rice, we isolated and characterized a rice mutant which exhibits dwarfism, reduced seed setting rate, defective floral organ, and small grains. Map-based cloning revealed that abnormal phenotypes were attributed to a mutation of the Fertilization Independent Endosperm 2 (OsFIE2) protein, which belongs to the PcG protein family. So we named the mutant as osfie2-1. Histological analysis revealed that the number of longitudinal cells in the internodes decreased in osfie2-1, and that lateral cell layer of the internodes was markedly thinner than wild-type...
2016: PloS One
Jessica A Flynn, Eberhard Durr, Ryan Swoyer, Pedro J Cejas, Melanie S Horton, Jennifer D Galli, Scott A Cosmi, Amy S Espeseth, Andrew J Bett, Lan Zhang
Infection with Respiratory Syncytial Virus (RSV) causes both upper and lower respiratory tract disease in humans, leading to significant morbidity and mortality in both young children and older adults. Currently, there is no licensed vaccine available, and therapeutic options are limited. During the infection process, the type I viral fusion (F) glycoprotein on the surface of the RSV particle rearranges from a metastable prefusion conformation to a highly stable postfusion form. In people naturally infected with RSV, most potent neutralizing antibodies are directed to the prefusion form of the F protein...
2016: PloS One
J L NDiaye, B Cissé, E H Ba, J F Gomis, C T Ndour, J F Molez, F B Fall, C Sokhna, B Faye, E Kouevijdin, F K Niane, M Cairns, J F Trape, C Rogier, O Gaye, B M Greenwood, P J M Milligan
BACKGROUND: It is recommended that children aged 3 months to five years of age living in areas of seasonal transmission in the sub-Sahel should receive Seasonal Malaria Chemoprevention (SMC) with sulfadoxine-pyrimethamine plus amodiaquine (SPAQ) during the malaria transmission season. The purpose of this study was to evaluate the safety of SMC with SPAQ in children when delivered by community health workers in three districts in Senegal where SMC was introduced over three years, in children from 3 months of age to five years of age in the first year, then in children up to 10 years of age...
2016: PloS One
Rupert R A Bourne, Hugh R Taylor, Seth R Flaxman, Jill Keeffe, Janet Leasher, Kovin Naidoo, Konrad Pesudovs, Richard A White, Tien Y Wong, Serge Resnikoff, Jost B Jonas
OBJECTIVE: To assess the number of individuals visually impaired or blind due to glaucoma and to examine regional differences and temporal changes in this parameter for the period from 1990 to 2012. METHODS: As part of the Global Burden of Diseases (GBD) Study 2010, we performed a systematic literature review for the period from 1980 to 2012. We primarily identified 14,908 relevant manuscripts, out of which 243 high-quality, population-based studies remained after review by an expert panel that involved application of selection criteria that dwelt on population representativeness and clarity of visual acuity methods used...
2016: PloS One
Mythily Srinivasan, Baindu Bayon, Nipun Chopra, Debomoy K Lahiri
In the central nervous system (CNS), activation of the transcription factor nuclear factor-kappa B (NF-κβ) is associated with both neuronal survival and increased vulnerability to apoptosis. The mechanisms underlying these dichotomous effects are attributed to the composition of NF-κΒ dimers. In Alzheimer's disease (AD), β-amyloid (Aβ) and other aggregates upregulate activation of p65:p50 dimers in CNS cells and enhance transactivation of pathological mediators that cause neuroinflammation and neurodegeneration...
2016: PloS One
Lavi Oud
BACKGROUND The demand for critical care services among elderly with dementia outpaces that of their non-dementia elderly counterparts. However, there are scarce data on the corresponding attributes among ICU-managed patients with dementia. MATERIAL AND METHODS We used the Texas Inpatient Public Use Data File to examine temporal trends of the demographics, burden of comorbidities, measures of severity of illness, use of healthcare resources, and short-term outcomes among hospitalizations aged 65 years or older with a reported diagnosis of dementia, who were admitted to ICU (D-ICU hospitalizations) between 2001 and 2010...
October 20, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Darren E Stewart, Victoria C Garcia, John D Rosendale, David K Klassen, Bob J Carrico
BACKGROUND: The proportion of deceased donor kidneys recovered for transplant but discarded increased steadily in the U.S. over 2 decades, from 5.1% in 1988 to 19.2% by 2009. Over 100,000 patients are waiting for a kidney transplant, yet 3,159 kidneys were discarded in 2015. METHODS: We evaluated trends in donor characteristics, discard reasons, and OPO-specific discard rates. Multivariable regression and propensity analysis were used to estimate the proportion of the discard rate rise in the 2000's attributable to changes in donor factors and decisions to biopsy and pump kidneys...
October 19, 2016: Transplantation
Michael Chaiton, Alison Holloway
No abstract available.
October 20, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
Jennifer R Ballard, Randall Mickley, Samantha E J Gibbs, Chris Dwyer, Catherine Soos, N Jane Harms, H Grant Gilchrist, Jeffrey S Hall, J Christian Franson, G Randy Milton, Glen Parsons, Brad Allen, Jean-Francois Giroux, Stéphane Lair, Daniel G Mead, John R Fischer
Between 1998 and 2014, recurrent mortality events were reported in the Dresser's subspecies of the Common Eider ( Somateria mollissima dresseri) on Cape Cod, Massachusetts, USA near Wellfleet Harbor. The early die-offs were attributed to parasitism and emaciation, but beginning in 2006 a suite of distinct lesions was observed concomitant with the isolation of a previously unknown RNA virus. This novel pathogen was identified as an orthomyxovirus in the genus Quaranjavirus and was named Wellfleet Bay virus (WFBV)...
October 20, 2016: Journal of Wildlife Diseases
R Sood, C Kuhle, E Kapoor, J Rullo, J Thielen, K Frohmader, K Mara, D Schroeder, S Faubion
OBJECTIVES: To assess the association between the type of symptom and women's self-reported view of menopause. METHODS: The study was conducted at Mayo Clinic, Rochester MN, between January 2006 and October 2014. Women aged 40-64 were included. Data from 1420 women were analyzed in a cross-sectional design. The Menopause Health Questionnaire was used for symptom assessment. Odds ratios (ORs) and population attributable risk (PAR) (OR × percent frequency) were calculated for each symptom...
October 20, 2016: Climacteric: the Journal of the International Menopause Society
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