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https://www.readbyqxmd.com/read/29783277/how-safe-is-safe-enough-for-self-driving-vehicles
#1
Peng Liu, Run Yang, Zhigang Xu
Self-driving vehicles (SDVs) promise to considerably reduce traffic crashes. One pressing concern facing the public, automakers, and governments is "How safe is safe enough for SDVs?" To answer this question, a new expressed-preference approach was proposed for the first time to determine the socially acceptable risk of SDVs. In our between-subject survey (N = 499), we determined the respondents' risk-acceptance rate of scenarios with varying traffic-risk frequencies to examine the logarithmic relationships between the traffic-risk frequency and risk-acceptance rate...
May 21, 2018: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/29783231/allergenic-weed-pollen-forecast-under-the-mathematical-modeling-method-implementation-in-ukraine
#2
Irina I Motruk, Michael Yu Antomonov, Victoria V Rodinkova, Olena E Aleksandrova, Oleh V Yermishev
OBJECTIVE: Introduction: Allergies are the most common reason of the chronic diseases in developed countries and represent an important medical, social and economic issue, the relevance of which is growing both in these countries and in Ukraine. The most famous of these allergens group is the pollen of ambrosia and pollen of poaceae, which are ubiquitously distributed in the subtropical and temperate climate. The aim: The objective of our study was to develop the mathematical models, which will be able to indicate the probability of the pollen circulation, and thus these models can simplify the forecast of symptoms risk and improve the prophylaxis of pollinosis...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783161/candidate-gene-analysis-in-the-s%C3%A3-o-paulo-epidemiologic-sleep-study-episono-shows-an-association-of-variant-in-pde4d-and-sleepiness
#3
Victoria M Pak, Diego R Mazzotti, Brendan T Keenan, Camila Hirotsu, Philip Gehrman, Lia Bittencourt, Allan I Pack, Sergio Tufik
INTRODUCTION: Sleepiness and cardiovascular disease share common molecular pathways; thus, genetic risk factors for sleepiness may also predict cardiovascular disease risk. This study explored the associations between subjective sleepiness and single-nucleotide polymorphisms (SNPs) in candidate genes within oxidative stress, inflammatory, and neuronal pathways, which may contribute to sleepiness and downstream cardiovascular disease risk: Cytochrome B-245, Alpha Polypeptide (CYBA), Cytochrome B-245, Beta Polypeptide (CYBB), Neutrophil Cytosolic Factor (NCF2), Tumor Necrosis Factor-Alpha (TNFA), and Phosphodiesterase 4D (PDE4D)...
January 12, 2018: Sleep Medicine
https://www.readbyqxmd.com/read/29783106/prediction-of-the-combined-effects-of-multiple-estrogenic-chemicals-on-mcf-7-human-breast-cancer-cells-and-a-preliminary-molecular-exploration-of-the-estrogenic-proliferative-effects-and-related-gene-expression
#4
Shengwu Yuan, Chao Huang, Xiaoya Ji, Mei Ma, Kaifeng Rao, Zijian Wang
The environmental risks of environmental estrogens (EEs) are often assessed via the same mode of action in the concentration addition (CA) model, neglecting the complex combined mechanisms at the genetic level. In this study, the cell proliferation effects of estrone, 17α-ethinylestradiol, 17β-estradiol, estriol, diethylstilbestrol, estradiol valerate, bisphenol A, 4-tert-octylphenol and 4-nonylphenol were determined individually using the CCK-8 method, and the proliferation effects of a multicomponent mixture of estrogenic chemicals mixed at equipotent concentrations using a fixed-ratio design were studied using estrogen-sensitive MCF-7 cells...
May 18, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29783079/altered-neural-encoding-of-prediction-errors-in-assault-related-posttraumatic-stress-disorder
#5
Marisa C Ross, Jennifer K Lenow, Clinton D Kilts, Josh M Cisler
Posttraumatic stress disorder (PTSD) is widely associated with deficits in extinguishing learned fear responses, which relies on mechanisms of reinforcement learning (e.g., updating expectations based on prediction errors). However, the degree to which PTSD is associated with impairments in general reinforcement learning (i.e., outside of the context of fear stimuli) remains poorly understood. Here, we investigate brain and behavioral differences in general reinforcement learning between adult women with and without a current diagnosis of PTSD...
May 12, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29783000/controlling-nutritional-status-score-a-promising-prognostic-marker-in-patients-with-gastrointestinal-cancers-after-surgery-a-systematic-review-and-meta-analysis
#6
REVIEW
Yi Zhang, Xu Zhang
BACKGROUND: Controlling nutritional status (CONUT) score has been reported to correlate with gastrointestinal (GI) cancer prognosis, but the results remain inconsistent. This study was to synthetically determine the associations between CONUT score and prognosis in GI cancers. METHODS: Online databases PubMed, Web of Science, Cochrane library, Embase, Google scholar, Wanfang and National Knowledge Infrastructure (CNKI) were searched for eligible articles published prior to March 10, 2018...
May 18, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29782997/measurement-error-and-timing-of-predictor-values-for-multivariable-risk-prediction-models-are-poorly-reported
#7
REVIEW
Rebecca Whittle, George Peat, John Belcher, Gary S Collins, Richard D Riley
OBJECTIVE: Measurement error in predictor variables may threaten the validity of clinical prediction models. We sought to evaluate the possible extent of the problem. A secondary objective was to examine whether predictors are measured at the intended moment of model use. METHODS: A systematic search of Medline was used to identify a sample of articles reporting the development of a clinical prediction model published in 2015. After screening according to a predefined inclusion criteria, information on predictors, strategies to control for measurement error and intended moment of model use were extracted...
May 18, 2018: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/29782862/evaluation-of-cardiac-arrhythmic-risks-using-a-rabbit-model-of-left-ventricular-systolic-dysfunction
#8
Bianca Hemmeryckx, Yuanbo Feng, Liesbeth Frederix, Marleen Lox, Sander Trenson, Rob Vreeken, Hua Rong Lu, David Gallacher, Yicheng Ni, H Roger Lijnen
Patients with heart disease have a higher risk to develop cardiac arrhythmias, either spontaneously or drug-induced. In this study, we have used a rabbit model of myocardial infarction (MI) with severe left ventricular systolic dysfunction (LVSD) to study potential drug-induced cardiac risks with N-(piperidin-2-ylmethyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide (flecainide). Upon ligation of the left circumflex arteries, male New Zealand White rabbits developed a large MI and moderate or severe LVSD 7 weeks after surgery, in comparison to SHAM-operated animals...
May 18, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29782650/predicting-obstructive-coronary-artery-disease-using-carotid-ultrasound-parameters-a-nomogram-from-a-large-real-world-clinical-data
#9
Na Wu, Xinghua Chen, Mingyang Li, Xiaolong Qu, Yueli Li, Weijia Xie, Long Wu, Ying Xiang, Yafei Li, Li Zhong
BACKGROUND: Carotid ultrasound is a non-invasive tool for risk assessment of coronary artery disease (CAD). There is no consensus on which carotid ultrasound parameter constitutes the best measurement of atherosclerosis. We investigated which model of carotid ultrasound parameters and clinical risk factors (CRF) have the highest predictive value for CAD. MATERIALS AND METHODS: We enrolled 2431 consecutive patients who have suspected CAD and underwent coronary angiography and carotid ultrasound with measurements of carotid intima-media thickness (CIMT), total number of plaques and areas of different types of plaques classified by echogenicity...
May 21, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29782548/dyslipidemia-among-rural-and-urban-hiv-patients-in-south-east-malawi
#10
Alemayehu Amberbir, Victor Singano, Alfred Matengeni, Zahra Ismail, Gift Kawalazira, Adrienne K Chan, Sumeet D Sodhi, Joep J van Oosterhout
BACKGROUND: While dyslipidemia importantly contributes to increased cardiovascular disease risk among patients on antiretroviral therapy (ART), data on lipid patterns among African adults on ART are limited. We describe the prevalence of lipid abnormalities and associated factors in two HIV clinics in Malawi. METHODS: We conducted a cross-sectional study in 2014 and enrolled adult patients at a rural and an urban HIV clinic in Zomba district, Malawi. We recorded patient characteristics, CVD risk factors and anthropometric measurements, using the WHO STEPS validated instrument...
2018: PloS One
https://www.readbyqxmd.com/read/29782519/increased-circulating-microrna-122-is-a-biomarker-for-discrimination-and-risk-stratification-in-patients-defined-by-sepsis-3-criteria
#11
Tim Rahmel, Simon T Schäfer, Ulrich H Frey, Michael Adamzik, Jürgen Peters
BACKGROUND: Sepsis is now operationally defined as life-threatening organ dysfunction caused by an infection, identified by an acute change in SOFA-Score of at least two points, including clinical chemistry such as creatinine or bilirubin concentrations. However, little knowledge exists about organ-specific microRNAs as potentially new biomarkers. Accordingly, we tested the hypotheses that micro-RNA-122, the foremost liver-related micro-RNA (miR), 1) discriminates between sepsis and infection, 2) is an early predictor for mortality, and 3) improves the prognostic value of the SOFA-score...
2018: PloS One
https://www.readbyqxmd.com/read/29782500/the-human-snail-transmission-environment-shapes-long-term-schistosomiasis-control-outcomes-implications-for-improving-the-accuracy-of-predictive-modeling
#12
David Gurarie, Nathan C Lo, Martial L Ndeffo-Mbah, David P Durham, Charles H King
INTRODUCTION: Schistosomiasis is a chronic parasitic trematode disease that affects over 240 million people worldwide. The Schistosoma lifecycle is complex, involving transmission via specific intermediate-host freshwater snails. Predictive mathematical models of Schistosoma transmission have often chosen to simplify or ignore the details of environmental human-snail interaction in their analyses. Schistosome transmission models now aim to provide better precision for policy planning of elimination of transmission...
May 21, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29782486/clinical-socioeconomic-and-behavioural-factors-at-age-50-years-and-risk-of-cardiometabolic-multimorbidity-and-mortality-a-cohort-study
#13
Archana Singh-Manoux, Aurore Fayosse, Séverine Sabia, Adam Tabak, Martin Shipley, Aline Dugravot, Mika Kivimäki
BACKGROUND: Multimorbidity is increasingly common and is associated with adverse health outcomes, highlighting the need to broaden the single-disease framework that dominates medical research. We examined the role of midlife clinical characteristics, socioeconomic position, and behavioural factors in the development of cardiometabolic multimorbidity (at least 2 of diabetes, coronary heart disease, and stroke), along with how these factors modify risk of mortality. METHODS AND FINDINGS: Data on 8,270 men and women were drawn from the Whitehall II cohort study, with mean follow-up of 23...
May 2018: PLoS Medicine
https://www.readbyqxmd.com/read/29782396/risk-factors-for-delays-in-adjuvant-chemotherapy-following-immediate-breast-reconstruction
#14
Oriana Cohen, Gretl Lam, Mihye Choi, Daniel Ceradini, Nolan Karp
BACKGROUND: Concerns exist that immediate breast reconstruction may delay adjuvant chemotherapy initiation, impacting oncologic outcomes. Here, we determine how post-operative complications impact chemotherapy timing, and identify factors associated with greater risk for delays. METHODS: Retrospective chart review identified patients undergoing immediate breast reconstruction and adjuvant chemotherapy at a single institution from 2010 to 2015. Patients were analyzed based on occurrence of post-operative complications and time to chemotherapy...
May 15, 2018: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29782393/clinical-and-prognostic-value-of-18f-fdg-pet-ct-in-restaging-of-pancreatic-cancer
#15
Domenico Albano, Demetrio Familiari, Roberta Gentile, Salvatore Scalisi, Federico Midiri, Marco Messina, Massimiliano Spada, Maria C Fornito, Massimo Galia, Massimo Midiri, Pierpaolo Alongi
AIM: The aim of this retrospective multicentre study was to evaluate the clinical and prognostic effect of fluorine-18-fluorodeoxyglucose (F-FDG)-PET/computed tomography (CT) in the restaging process of pancreatic cancer (PC). MATERIALS AND METHODS: Data from patients treated for primary PC, who underwent F-FDG-PET/CT for suspicious of disease progression, were collected. Accuracy was assessed employing conventional diagnostic procedures, multidisciplinary team case notes, further F-FDG-PET/CT scans and/or follow-up...
May 18, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29782392/collagen-biomarkers-predict-new-onset-of-hypertension-in-normotensive-participants-the-multi-ethnic-study-of-atherosclerosis
#16
Daniel A Duprez, Myron D Gross, Joachim H Ix, Jorge R Kizer, Russell P Tracy, Steven Shea, David R Jacobs
OBJECTIVE: Vascular remodeling associated with increased extracellular matrix (ECM) may precede hypertension. Procollagen type III N-terminal propeptide (PIIINP) and collagen type I carboxy-terminal telopeptide (ICTP) reflect collagen turnover and are important in ECM remodeling. PIIINP and ICTP are increased in cardiovascular diseases (CVD). We hypothesized that PIIINP and ICTP among normotensives predict incident hypertension. METHODS: We included 1252 Multi-Ethnic Study of Atherosclerosis participants with mean age 58...
May 17, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29782390/suspecting-hyperferritinemic-sepsis-in-iron-deficient-population-do-we-need-a-lower-plasma-ferritin-threshold
#17
Swarup Ghosh, Arun K Baranwal, Prateek Bhatia, Karthi Nallasamy
OBJECTIVES: Hyperferritinemia is being suggested to identify patients with sepsis-induced macrophage activation syndrome for early intervention. However, data among iron-deficient children are scarce. This study was planned to explore the biological behavior of plasma ferritin in children from communities with a high frequency of iron deficiency with septic shock and its association with the outcome. DESIGN: Prospective observational study. SETTING: Tertiary care teaching hospital in a low-middle income economy of South Asia...
May 18, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29782316/from-subjective-cognitive-decline-to-alzheimer-s-disease-the-predictive-role-of-neuropsychological-assessment-personality-traits-and-cognitive-reserve-a-7-year-follow-up-study
#18
Valentina Bessi, Salvatore Mazzeo, Sonia Padiglioni, Carolina Piccini, Benedetta Nacmias, Sandro Sorbi, Laura Bracco
The aim of this study was to evaluate the accuracy of neuropsychological assessment in predicting conversion from subjective cognitive decline (SCD) and mild cognitive impairment (MCI) to Alzheimer's disease (AD) and the effect of personality traits and cognitive reserve in progression from SCD to MCI. As part of a longitudinal, clinical-neuropsychological-genetic survey on SCD and MCI, 284 patients referred to our hospital between 1990 and 2017 were included. All patients underwent clinical-extensive neuropsychological evaluation and Apolipoprotein E genotyping; personality traits were assessed in a subgroup...
May 16, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29782278/-predictive-significance-of-disturbed-water-salt-homeostasis-in-decompensated-chronic-heart-failure-patients
#19
K S Fazulina, V V Fomin, V V Meshalkina
AIM: To estimate association between disorders of salt-water homeostasis on admision and the remote one-year prognosis for patients hospitalized with decompensated CHF NYHA FC III-IV. MATERIALS AND METHODS: This prospective study was based on clinical amnestic data and results of one-year follow-up of 111 consecutive patients admitted for decompensation of CHF to the State Clinical Hospital No. 24 in January 2015‑February 2016. RESULTS: The relative risk of death within one year for patients hospitalized for decompensated CHF with disorders of water and salt homeostasis increased 1...
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782261/-chronic-kidney-disease-as-basis-of-high-thrombotic-and-bleeding-risk-in-patients-with-atrial-fibrillation-place-of-oral-anticoagulants
#20
A G Obrezan, A Y Zemchenkov
Chronic kidney disease (CKD) aggravates course of practically all diseases by worsening outcomes and hindering adequate treatment. Specificities of renal excretion of various drugs, changes of parameters of their pharmacokinetics and pharmacodynamics, nephrotoxic effects of drugs, tactics of drug therapy in conditions of CKD, terminal stage of kidney failure and dialysis are in the focus of attention of internists. To a greatest degree difficulties of drug therapy in CKD and associated clinical states refer to the group of anticoagulants...
April 2018: Kardiologiia
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