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https://www.readbyqxmd.com/read/28098412/a-hierarchical-modeling-approach-to-estimate-regional-acute-health-effects-of-particulate-matter-sources
#1
Jenna R Krall, Amber J Hackstadt, Roger D Peng
Exposure to particulate matter (PM) air pollution has been associated with a range of adverse health outcomes, including cardiovascular disease hospitalizations and other clinical parameters. Determining which sources of PM, such as traffic or industry, are most associated with adverse health outcomes could help guide future recommendations aimed at reducing harmful pollution exposure for susceptible individuals. Information obtained from multisite studies, which is generally more precise than information from a single location, is critical to understanding how PM impacts health and to informing local strategies for reducing individual-level PM exposure...
January 18, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28098348/impact-of-lysosomal-storage-disorders-on-biology-of-mesenchymal-stem-cells-evidences-from-in-vitro-silencing-of-glucocerebrosidase-gba-and-alpha-galactosidase-a-gla-enzymes
#2
T Squillaro, I Antonucci, N Alessio, A Esposito, M Cipollaro, Mab Melone, G Peluso, L Stuppia, U Galderisi
Lysosomal storage disorders (LDS) comprise a group of rare multisystemic diseases resulting from inherited gene mutations that impair lysosomal homeostasis. The most common LSDs, Gaucher disease (GD) and Fabry disease (FD) are caused by deficiencies in the lysosomal glucocerebrosidase (GBA) and alpha-galactosidase A (GLA) enzymes, respectively. Given the systemic nature of enzyme deficiency, we hypothesized that the stem cell compartment of GD and FD patients might be also affected. Among stem cells, mesenchymal stem cells (MSCs) are a commonly investigated population given their role in hematopoiesis and the homeostatic maintenance of many organs and tissues...
January 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28098101/insulin-resistance-in-predialytic-nondiabetic-chronic-kidney-disease-patients-a-hospital-based-study-in-eastern-uttar-pradesh-india
#3
Neha Srivastava, R G Singh, Alok Kumar, Shivendra Singh
Most investigations have focused on patients with end-stage renal disease (ESRD). More recently, due to increased recognition of the high prevalence of moderate-to-severe chronic kidney disease (CKD), attention has been redirected to this patient population to identify risk factors associated with hospitalization, death, and progression to ESRD. The objective of this study was to examine the degree and determinants of insulin resistance (IR) in predialytic, nondiabetic, CKD patients. Our study is a hospital-based cross-sectional study...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28097904/estimated-burden-of-cardiovascular-disease-and-value-based-price-range-for-evolocumab-in-a-high-risk-secondary-prevention-population-in-the-us-payer-context
#4
Peter P Toth, Mark Danese, Guillermo Villa, Yi Qian, Anne Beaubrun, Armando Lira, Jeroen P Jansen
AIM: To estimate real-world cardiovascular disease (CVD) burden and value-based price range of evolocumab for a US-context, high-risk, secondary-prevention population. MATERIALS AND METHODS: Burden of CVD was assessed using the UK-based Clinical Practice Research Datalink (CPRD) in order to capture complete CV burden including CV mortality. Patients on standard of care (SOC; high-intensity statins) in CPRD were selected based on eligibility criteria of FOURIER, a phase 3 CV outcomes trial of evolocumab, and categorized into 4 cohorts: high-risk prevalent atherosclerotic CVD (ASCVD) cohort (N = 1448), acute coronary syndrome (ACS) (N = 602), ischemic stroke (IS) (N = 151), and heart failure (HF) (N = 291) incident cohorts...
January 18, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28097876/the-relationship-of-perfectionism-with-psychological-symptoms-in-cancer-patients-and-the-contributing-role-of-hyperarousability-and-coping
#5
Claudia Trudel-Fitzgerald, Josée Savard, Lisa-Maria Slim, Renée-Claude Roy, Gordon L Flett, Paul L Hewitt, Hans Ivers
OBJECTIVE: Significant levels of anxiety, depression and insomnia symptoms are found in cancer patients. Perfectionism, arousability and coping have been associated with these psychological symptoms in the general population but their role among cancer patients remains to be assessed. This study examined the longitudinal relationships between perfectionism and psychological symptoms (anxiety, depression, insomnia), and the intermediate role of the arousability trait and coping strategies...
January 18, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28096351/uncovering-hidden-variation-in-polyploid-wheat
#6
Ksenia V Krasileva, Hans A Vasquez-Gross, Tyson Howell, Paul Bailey, Francine Paraiso, Leah Clissold, James Simmonds, Ricardo H Ramirez-Gonzalez, Xiaodong Wang, Philippa Borrill, Christine Fosker, Sarah Ayling, Andrew L Phillips, Cristobal Uauy, Jorge Dubcovsky
Comprehensive reverse genetic resources, which have been key to understanding gene function in diploid model organisms, are missing in many polyploid crops. Young polyploid species such as wheat, which was domesticated less than 10,000 y ago, have high levels of sequence identity among subgenomes that mask the effects of recessive alleles. Such redundancy reduces the probability of selection of favorable mutations during natural or human selection, but also allows wheat to tolerate high densities of induced mutations...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095772/empirical-assessment-of-analysis-workflows-for-differential-expression-analysis-of-human-samples-using-rna-seq
#7
Claire R Williams, Alyssa Baccarella, Jay Z Parrish, Charles C Kim
BACKGROUND: RNA-Seq has supplanted microarrays as the preferred method of transcriptome-wide identification of differentially expressed genes. However, RNA-Seq analysis is still rapidly evolving, with a large number of tools available for each of the three major processing steps: read alignment, expression modeling, and identification of differentially expressed genes. Although some studies have benchmarked these tools against gold standard gene expression sets, few have evaluated their performance in concert with one another...
January 17, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28095428/linking-ecology-and-epidemiology-to-understand-predictors-of-multi-host-responses-to-an-emerging-pathogen-the-amphibian-chytrid-fungus
#8
Stephanie S Gervasi, Patrick R Stephens, Jessica Hua, Catherine L Searle, Gisselle Yang Xie, Jenny Urbina, Deanna H Olson, Betsy A Bancroft, Virginia Weis, John I Hammond, Rick A Relyea, Andrew R Blaustein
Variation in host responses to pathogens can have cascading effects on populations and communities when some individuals or groups of individuals display disproportionate vulnerability to infection or differ in their competence to transmit infection. The fungal pathogen, Batrachochytrium dendrobatidis (Bd) has been detected in almost 700 different amphibian species and is implicated in numerous global amphibian population declines. Identifying key hosts in the amphibian-Bd system-those who are at greatest risk or who pose the greatest risk for others-is challenging due in part to many extrinsic environmental factors driving spatiotemporal Bd distribution and context-dependent host responses to Bd in the wild...
2017: PloS One
https://www.readbyqxmd.com/read/28095414/mosquito-disseminated-insecticide-for-citywide-vector-control-and-its-potential-to-block-arbovirus-epidemics-entomological-observations-and-modeling-results-from-amazonian-brazil
#9
Fernando Abad-Franch, Elvira Zamora-Perea, Sérgio L B Luz
BACKGROUND: Mosquito-borne viruses threaten public health worldwide. When the ratio of competent vectors to susceptible humans is low enough, the virus's basic reproductive number (R0) falls below 1.0 (each case generating, on average, <1.0 additional case) and the infection fades out from the population. Conventional mosquito control tactics, however, seldom yield R0 < 1.0. A promising alternative uses mosquitoes to disseminate a potent growth-regulator larvicide, pyriproxyfen (PPF), to aquatic larval habitats; this kills most mosquito juveniles and substantially reduces adult mosquito emergence...
January 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28095411/optimal-management-strategies-for-primary-hpv-testing-for-cervical-screening-cost-effectiveness-evaluation-for-the-national-cervical-screening-program-in-australia
#10
Kate T Simms, Michaela Hall, Megan A Smith, Jie-Bin Lew, Suzanne Hughes, Susan Yuill, Ian Hammond, Marion Saville, Karen Canfell
BACKGROUND: Several countries are implementing a transition to HPV testing for cervical screening in response to the introduction of HPV vaccination and evidence indicating that HPV screening is more effective than cytology. In Australia, a 2017 transition from 2-yearly conventional cytology in 18-20 to 69 years to 5-yearly primary HPV screening in 25 to 74 years will involve partial genotyping for HPV 16/18 with direct referral to colposcopy for this higher risk group. The objective of this study was to determine the optimal management of women positive for other high-risk HPV types (not 16/18) ('OHR HPV')...
2017: PloS One
https://www.readbyqxmd.com/read/28095406/a-two-locus-model-of-the-evolution-of-insecticide-resistance-to-inform-and-optimise-public-health-insecticide-deployment-strategies
#11
Bethany Levick, Andy South, Ian M Hastings
We develop a flexible, two-locus model for the spread of insecticide resistance applicable to mosquito species that transmit human diseases such as malaria. The model allows differential exposure of males and females, allows them to encounter high or low concentrations of insecticide, and allows selection pressures and dominance values to differ depending on the concentration of insecticide encountered. We demonstrate its application by investigating the relative merits of sequential use of insecticides versus their deployment as a mixture to minimise the spread of resistance...
January 17, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28095305/fertility-kinship-and-the-evolution-of-mass-ideologies
#12
Tamas David-Barrett, Robin I M Dunbar
Traditional human societies are organised around kinship, and use kinship networks to generate large scale community projects. This is made possible by a combination of linguistic kin recognition, a uniquely human trait, which is mediated by the reliability of kin as collaborators. When effective fertility falls, this results in two simultaneous effects on social networks: there are fewer kin that can be relied on, and the limiting effect of the local kin-clustering becomes stronger. To capture this phenomenon, we used a model of kinship lineages to build populations with a range of fertility levels combined with a behavioural synchrony model to measure the efficiency of collective action generated on kin networks within populations...
January 14, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28095087/binocular-and-accommodative-characteristics-in-a-normal-population
#13
AbbasAli Yekta, Mehdi Khabazkhoob, Hassan Hashemi, Hadi Ostadimoghaddam, Somayeh Ghasemi-Moghaddam, Javad Heravian, Asgar Doostdar, Payam Nabovati
PURPOSE: To study binocular and accommodative characteristics and their associations with age and gender in an Iranian young adult population. METHODS: In this cross-sectional study, multistage cluster sampling was done from the students of Mashhad University of Medical Sciences. All participants had visual acuity, refraction, and cover tests followed by measurements of the near point of convergence (NPC), amplitude of accommodation (AA), monocular and binocular accommodative facility (MAF and BAF) using ±2...
January 17, 2017: Strabismus
https://www.readbyqxmd.com/read/28094907/better-nurse-autonomy-decreases-the-odds-of-30-day-mortality-and-failure-to-rescue
#14
Aditi D Rao, Aparna Kumar, Matthew McHugh
RESEARCH PURPOSE: Autonomy is essential to professional nursing practice and is a core component of good nurse work environments. The primary objective of this study was to examine the relationship between nurse autonomy and 30-day mortality and failure to rescue (FTR) in a hospitalized surgical population. STUDY DESIGN: This study was a secondary analysis of cross-sectional data. It included data from three sources: patient discharge data from state administrative databases, a survey of nurses from four states, and the American Hospital Association annual survey from 2006-2007...
January 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28094785/high-resolution-african-population-projections-from-radiative-forcing-and-socio-economic-models-2000-to-2100
#15
Niklas Boke-Olén, Abdulhakim M Abdi, Ola Hall, Veiko Lehsten
For its fifth assessment report, the Intergovernmental Panel on Climate Change divided future scenario projections (2005-2100) into two groups: Socio-Economic Pathways (SSPs) and Representative Concentration Pathways (RCPs). Each SSP has country-level urban and rural population projections, while the RCPs are based on radiative forcing caused by greenhouse gases, aerosols and associated land-use change. In order for these projections to be applicable in earth system models, SSP and RCP population projections must be at the same spatial scale...
January 17, 2017: Scientific Data
https://www.readbyqxmd.com/read/28094764/neuromorphic-meets-neuromechanics-part-ii-the-role-of-fusimotor-drive
#16
Kian Jalaleddini, Chuanxin Niu, Suraj Chakravarthi Raja, Won Joon Sohn, Gerald Loeb, Terence Sanger, Francisco Valero-Cuevas
OBJECTIVE: We studied the fundamentals of muscle afferentation by building a neuro-mechano-morphic system actuating a cadaveric finger. This system is a faithful implementation of the stretch reflex circuitry. It allowed the systematic exploration of the effects of different fusimotor drives to the muscle spindle on the closed-loop stretch reflex response. APPROACH: As in Part I of this work, sensory neurons conveyed proprioceptive information from muscle spindles (with static and dynamic fusimotor drive) to populations of ��-motor neurons (with recruitment and rate coding properties)...
January 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28094585/relationship-between-plasma-homocysteine-level-and-glaucomatous-retinal-nerve-fiber-layer-defect
#17
Jae Yeun Lee, Joon Mo Kim, In Tae Kim, Chung Kwon Yoo, Yu Sam Won, Jung Hoon Kim, Hyun Seok Kwon, Ki Ho Park
AIMS: To investigate the association between plasma homocysteine levels and glaucomatous retinal nerve fiber layer (RNFL) defect in South Korean population. MATERIALS AND METHODS: This retrospective cross-sectional study included subjects who underwent screening at Kangbuk Samsung Hospital Health Screening Center between August 2012 and July 2013. Subjects underwent physical examination and provided samples for laboratory analysis of homocysteine. Subjects were divided equally into four quartiles (Qs) based on plasma homocysteine level...
January 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28094135/diabetes-prevention-program-translation-in-the-veterans-health-administration
#18
Tannaz Moin, Laura J Damschroder, Mona AuYoung, Matthew L Maciejewski, Santanu K Datta, Jane E Weinreb, Nanette I Steinle, Charles Billington, Maria Hughes, Fatima Makki, Robert G Holleman, H Myra Kim, Amy S Jeffreys, Linda S Kinsinger, Jennifer A Burns, Caroline R Richardson
INTRODUCTION: This clinical demonstration trial compared the effectiveness of the Veterans Affairs Diabetes Prevention Program (VA-DPP) with an evidence-based usual care weight management program (MOVE!(®)) in the Veterans Health Administration health system. DESIGN: Prospective, pragmatic, non-randomized comparative effectiveness study of two behavioral weight management interventions. SETTING/PARTICIPANTS: Obese/overweight Veterans with prediabetes were recruited from three geographically diverse VA sites between 2012 and 2014...
January 13, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28094102/single-cell-genomics-approaches-and-utility-in-immunology
#19
REVIEW
Karlynn E Neu, Qingming Tang, Patrick C Wilson, Aly A Khan
Single-cell genomics offers powerful tools for studying immune cells, which make it possible to observe rare and intermediate cell states that cannot be resolved at the population level. Advances in computer science and single-cell sequencing technology have created a data-driven revolution in immunology. The challenge for immunologists is to harness computing and turn an avalanche of quantitative data into meaningful discovery of immunological principles, predictive models, and strategies for therapeutics...
January 13, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28093975/molecular-modeling-and-dynamics-simulation-analysis-of-katnal1-for-identification-of-novel-inhibitor-of-sperm-maturation
#20
Kishore Sarma, Shubhadeep Roychoudhury, Sudipta Sankar Bora, Budheswar Dehury, Pratap Parida, Saurav Das, Robin Das, Chandrajit Dohutia, Sangeeta Nath, Bibhas Deb, Mahendra K Modi
Rapid growth of world population is one of the biggest challenges faced by the human race. Hormone based birth control often causes various side effects, as such development of non-hormonal based contraceptives is the need of the hour. A recent study revealed that temporary infertility without changing hormone levels can be attained by inhibiting Katanin p60 ATPase-containing subunit A-like 1 protein (KATNAL1) which is critical in sperm maturation in the testes. This study revealed that, KATNAL1 is a soluble protein retained in the cytoplasm having molecular weight of 55,392 Dalton...
January 16, 2017: Combinatorial Chemistry & High Throughput Screening
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