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https://www.readbyqxmd.com/read/28735151/do-air-pollution-and-neighborhood-greenness-exposures-improve-the-predicted-cardiovascular-risk
#1
Maayan Yitshak-Sade, Itai Kloog, Victor Novack
BACKGROUND: Numerous studies show associations between exposure to Particulate Matter and Cardiovascular disease (CVD). Current cardiovascular equations incorporate the major risk factors for CVD. The patients' environment, however, is not incorporated in these equations. METHODS: In a retrospective analysis, we assessed the contribution of neighborhood greenness and particulate matter (coarse-PM and PM<2.5μm-PM2.5) to the development of CVD by analyzing the change in prediction abilities...
July 20, 2017: Environment International
https://www.readbyqxmd.com/read/28734371/electrospun-nanofibrous-mercury-filter-efficient-concentration-and-determination-of-trace-mercury-in-water-with-high-sensitivity-and-tunable-dynamic-range
#2
Huaming Wang, Wenyao Huang, Lin Tang, Ying Chen, Ying Zhang, Mengxi Wu, Yi Song, Sheng Wen
Herein, we reported a simple and highly sensitive method for the concentration and determination of trace mercury in water samples based on a novel electropsun nanofibrous mercury filter (ENMF). The method consisted of two simple steps: first, the concentration of mercury on a piece of thiol-containing ENMF; and second, the determination of mercury captured on the ENMF using a direct mercury analyzer (DMA). By changing the volume of water sample, the dynamic range of the method could extend from 0.0025 to 6...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28734356/palladium-copper-nanowires-based-biosensor-for-the-ultrasensitive-detection-of-organophosphate-pesticides
#3
Dandan Song, Yan Li, Xiong Lu, Muxue Sun, Hui Liu, Guangming Yu, Faming Gao
A highly sensitive acetylcholinesterase (AChE) electrochemical biosensor for the quantitative determination of organophosphate pesticides (OPs) in vegetables and fruits based on palladium-copper nanowires (Pd-Cu NWs) was reported. AChE immobilized on the modified electrode could catalyze hydrolysis of acetylthiocholine chloride (ATCl), generating an irreversible oxidation peak. When exposed to the OPs, the activity of the AChE was inhibited and the current significantly decreased. The detection mechanism is based on the inhibition of AChE...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28732292/influence-of-rainfall-duration-and-intensity-on-particulate-matter-removal-from-plant-leaves
#4
Xiaowu Xu, Zhenming Zhang, Le Bao, Li Mo, Xinxiao Yu, Dengxing Fan, Xiaoxiu Lun
Rainfall influences removal of airborne particulate matter (PM) from leaf surfaces through a process called wash off resulting in throughfall that carries PM to the ground. The present study examined the effects of rainfall characteristics on PM wash-off mass and rate from the foliage of four broadleaf species, to investigate retention of PM pollution. In a controlled rainfall simulation experiment, rainfall intensity was set to 15, 30, and 50mmh(-1), and sampling intervals for the three rainfall intensities were divided into 10, 5, and 3min, respectively...
July 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28732119/association-between-pm2-5-and-pm2-5-constituents-and-preterm-delivery-in-california-2000-2006
#5
Rupa Basu, Dharshani Pearson, Keita Ebisu, Brian Malig
BACKGROUND: Particulate matter (PM) has been documented to contribute to preterm delivery. However, few studies have investigated the relationships between individual constituents of fine PM (PM2.5 ) and preterm delivery, and factors that may modify their associations. METHODS: In this study, we examined the associations between several prenatal exposure metrics to PM2.5 and 23 constituents of PM2.5 and preterm delivery in California from 2000 to 2006. In a retrospective cohort study including 231 637 births, we conducted logistic regression analyses adjusting for maternal, infant, temporal, geographic, and neighbourhood characteristics...
July 21, 2017: Paediatric and Perinatal Epidemiology
https://www.readbyqxmd.com/read/28730315/comparison-of-nellcor%C3%A2-pm1000n-and-masimo-radical-7-%C3%A2-for-detecting-apnea-in-volunteers
#6
Chanatthee Kitsiripant, Tomoko Fukada, Hiroko Iwakiri, Yuri Tsuchiya, Makoto Ozaki, Minoru Nomura
PURPOSE: Although capnography is considered the gold standard for monitoring of ventilation, it may not work accurately in some situations. We compared the performance of two non-invasive continuous respiratory rate (RR) monitors that are alternatives for the detection of respiratory depression. METHODS: Fifty healthy volunteers ≥20 years old were enrolled in this study. After monitoring of the volunteers was started by the Masimo Radical-7(®) and Nellcor™ PM1000N, they breathed at the rate of 12 breaths/min for 3 min and then stopped breathing...
July 20, 2017: Journal of Anesthesia
https://www.readbyqxmd.com/read/28727097/evaluating-the-impact-of-breed-pregnancy-and-hair-coat-on-body-temperature-and-sweating-rate-of-hair-sheep-ewes-in-the-tropics
#7
R W Godfrey, W D Preston, S R Joseph, L LaPlace, P E Hillman, K G Gebremedhin, C N Lee, R J Collier
The objective of this study was to evaluate the effect of pregnancy, breed, and hair coat on body temperature and sweating rate (SR) of hair sheep. St. Croix White (STX; = 9) and Dorper × STX (DRPX; = 9) ewes (3.6 yr of age) were evaluated over 4 d at 126 d of gestation (PREG) and over 4 d at 46 d postpartum (OPEN) in the shade and sun and in the morning (AM; 0900 to 1200 h) and afternoon (PM; 1300 to 1600 h) after a 20 min acclimation to each condition on each day. Data loggers recorded vaginal temperature (VT) at 10-min intervals for 96 h...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28719088/understanding-and-managing-the-risk-of-head-impact-from-in-hospital-falls-a-cross-sectional-analysis-of-data-from-166-public-hospitals
#8
Satyan R Chari, Paul Varghese, Rebecca A R Bell, Kate Smith, Terry P Haines
BACKGROUND: Falls are a leading cause of preventable harm in the hospitalized elderly, and head impacts (HIs) can be a precursor to serious injury. The aim of this study was to examine if the risk of fall-related HI can be explained by incident characteristics. METHODS: All reported falls across public hospital facilities in the state of Queensland, Australia, over a 2-year period were analyzed using univariate and multiple logistic regression. RESULTS: In all, 650 instances of HI were reported across 24 218 falls...
July 2017: Journal of Healthcare Risk Management: the Journal of the American Society for Healthcare Risk Management
https://www.readbyqxmd.com/read/28717850/physio-biochemical-parameters-a-potential-tool-for-target-selective-treatment-of-haemonchosis-in-the-small-ruminants
#9
Bhupamani Das, Niranjan Kumar, Mehul M Jadav, Jayesh B Solanki, T K S Rao
This study aims to evaluate the conjunctiva colour-based FAMACHA score (FS) coupled with a body condition score (BCS), haemogram and stressor hormone level estimation, in identifying post-mortem (PM)/coproscopically proven individuals wanting therapy for economically important gastrointestinal (GI) helminths, Haemonchus contortus, in the small ruminants. The incidence of haemonchosis was significantly (p < 0.05) higher (60.81%) in the ruminants with FS = 3. The H. contortus count in the animals with FS 2, 3 and 4 was 23...
July 17, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28717513/unexpected-intensive-care-transfer-of-admitted-patients-with-severe-sepsis
#10
Gabriel Wardi, Arvin R Wali, Julian Villar, Vaishal Tolia, Christian Tomaszewski, Christian Sloane, Peter Fedullo, Jeremy R Beitler, Matthew Nolan, Daniel Lasoff, Rebecca E Sell
BACKGROUND: Patients with severe sepsis generally respond well to initial therapy administered in the emergency department (ED), but a subset later decompensate and require unexpected transfer to the intensive care unit (ICU). This study aimed to identify clinical factors that can predict patients at increased risk for delayed transfer to the ICU and the association of delayed ICU transfer with mortality. METHODS: This is a nested case-control study in a prospectively collected registry of patients with severe sepsis and septic shock at two EDs...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28711882/hla-drb1-alleles-as-genetic-risk-factors-for-the-development-of-anti-mda5-antibodies-in-patients-with-dermatomyositis
#11
Zhiyong Chen, Yan Wang, Masataka Kuwana, Xue Xu, Wei Hu, Xuebing Feng, Hong Wang, Akinori Kimura, Lingyun Sun
OBJECTIVE: Patients with polymyositis/dermatomyositis (PM/DM) who express anti-melanoma differentiation associated protein 5 (anti-MDA5) antibodies frequently present with interstitial lung disease (ILD). The aim of this study was to investigate the association of HLA-DRB1 with anti-MDA5 expression in PM/DM. METHODS: The frequency of DRB1 alleles was compared among 70 patients with PM, 104 patients with DM, and 400 healthy controls in a Han Chinese population. RESULTS: Frequencies of DRB1*04:01 [17...
July 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28711806/improvement-of-pig-manure-compost-lignocellulose-degradation-organic-matter-humification-and-compost-quality-with-medical-stone
#12
Quan Wang, Mukesh Kumar Awasthi, Junchao Zhao, Xiuna Ren, Ronghua Li, Zhen Wang, Meijing Wang, Zengqiang Zhang
The present study aimed to investigate the effect of different concentrations (0%, 2.5%, 5.0%, 7.5% and 10.0%) of medical stone (MS) on the lignocellulose degradation and organic matter humification during pig manure (PM) composting. The results indicated that the addition of MS drastically promoted the organic carbon and lignin degradation. Compared to the control, the decomposition rate of hemicellulose and cellulose was increased by 9.64-27.08% and 2.11-12.07% in MS added treatments. Meanwhile, MS amendment significantly improved the humification of composting process, and the humic acid contents in MS added treatments were 5...
July 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28708100/airborne-pm2-5-induced-hepatic-insulin-resistance-by-nrf2-jnk-mediated-signaling-pathway
#13
Jinxia Xu, Wei Zhang, Zhongbing Lu, Fang Zhang, Wenjun Ding
Animal and epidemiological studies have suggested that exposure to airborne particulate matter (PM) with an aerodynamic diameter less than 2.5 μm (PM2.5) is associated with the risk of developing type 2 diabetes. However, the mechanism underlying this risk is poorly understood. In the present study, we investigated the effects of PM2.5 exposure on glucose homeostasis and related signaling pathways in mice. Wild-type and nuclear factor erythroid 2-related factor 2 (Nrf2) knockout (Nrf2(-)(/)(-)) C57BL/6 male mice were exposed to either ambient concentrated PM2...
July 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28705430/effect-of-long-term-exposure-to-air-pollution-on-anxiety-and-depression-in-adults-a-cross-sectional-study
#14
Cristina Vert, Gonzalo Sánchez-Benavides, David Martínez, Xavier Gotsens, Nina Gramunt, Marta Cirach, José Luis Molinuevo, Jordi Sunyer, Mark J Nieuwenhuijsen, Marta Crous-Bou, Mireia Gascon
BACKGROUND: The association between exposure to air pollutants and mental disorders among adults has been suggested, although results are not consistent. OBJECTIVE: To analyze the association between long-term exposure to air pollution and history of anxiety and depression disorders and of medication use (benzodiazepines and antidepressants) in adults living in Barcelona. METHODS: A total of 958 adults (45-74 years old) residents in Barcelona, most of them having at least one of their parents diagnosed with dementia (86%), and participating in the ALFA (Alzheimer and Families) study, were included...
July 3, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28699119/deposited-atmospheric-dust-as-influenced-by-anthropogenic-emissions-in-northern-china
#15
Yanli Lyu, Lianyou Liu, Lanlan Guo, Yanyan Yang, Zhiqiang Qu, Xia Hu, Guoming Zhang
Atmospheric particulate matter (PM) from multinatural and anthropogenic sources poses serious risk to human health and contaminates soil and water resources as it settles back to ground environment and ecosystem. In this study, dust deposition flux (DDF), pollution load index (PLI) of heavy metals, enrichment factor (EF), and settling flux (SF) of eighteen chemical elements were investigated in comparison with crustal composition to assess the influence of anthropogenic emission on PM in major northern Chinese cities...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28699010/chemical-characterization-of-size-segregated-pm-from-different-public-transport-modes-and-implications-of-source-specific-contribution-to-public-exposure
#16
Sabrina Yanan Jiang, Nirmal Kumar Gali, Fenhuan Yang, Junke Zhang, Zhi Ning
To investigate the chemical properties of particulate matter (PM) in different public transport microenvironments in Hong Kong, the coarse (2.5-10 μm) and fine (<2.5 μm) PM samples were collected in three different types of transport modes including Mass Transit Railway (MTR)-Aboveground (AG), MTR Underground (UG), and Bus routes from October 2013 to April 2014. Average PM2.5 concentrations through UG, AG, and Bus routes were 47.9, 86.8, and 43.8 μg m(-3), respectively, whereas the coarse PM concentrations were 4-5 folds less...
July 11, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28698096/differential-pulmonary-effects-of-wintertime-california-and-china-particulate-matter-in-healthy-young-mice
#17
Xiaolin Sun, Haiying Wei, Dominique E Young, Keith J Bein, Suzette M Smiley-Jewell, Qi Zhang, Ciara Catherine B Fulgar, Alejandro R Castañeda, Alexa K Pham, Wei Li, Kent E Pinkerton
Airborne particulate matter (PM) is associated with adverse cardiorespiratory effects. To better understand source-orientated PM toxicity, a comparative study of the biological effects of fine PM (diameter≤2.5μm, PM2.5) collected during the winter season from Shanxi Province, China, and the Central Valley, California, United States, was conducted. The overarching hypothesis for this study was to test whether the chemical composition of PM on an equal mass basis from two urban areas, one in China and one in California, can lead to significantly different effects of acute toxicity and inflammation in the lungs of healthy young mice...
July 8, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28692015/the-association-between-particulate-matter-air-pollution-and-respiratory-health-in-elderly-with-type-2-diabetes-mellitus
#18
Yanhui Hao, Jing Zhao, Kan Wang, Nannan Feng, Pin Sun, Renjie Chen, Bin Han, Zhipeng Bai, Yiliang Zhu, Ying Gao, Zhao-Lin Xia
OBJECTIVE: We investigated the association between respiratory health and particulate matter (PM) air pollution in elderly type 2 diabetes mellitus (T2DM) pre-, during, and post-the Chinese Lunar New Year (CLNY) holiday in Shanghai, China. METHODS: We conducted repeated measurements of lung function and inflammation biomarker in a cohort consisted of 60 participants with T2DM. RESULTS: Decreased PM2.5 exposure had an effect on respiratory health by increasing in forced expiratory flow in 1 second (FEV1) and forced vital capacity (FVC)...
July 6, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28690312/wolff-parkinson-white-syndrome-with-ventricular-hypertrophy-in-a-brazilian-family
#19
Lenises de Paula van der Steld, Oscar Campuzano, Alexandra Pérez-Serra, Mabel Moura de Barros Zamorano, Selma Sousa Matos, Ramon Brugada
BACKGROUND PRKAG2 syndrome diagnosis is already well-defined as Wolff-Parkinson-White syndrome (WPW), ventricular hypertrophy (VH) due to glycogen accumulation, and conduction system disease (CSD). Because of its rarity, there is a lack of literature focused on the treatment. The present study aimed to describe appropriate strategies for the treatment of affected family members with PRKAG2 syndrome with a long follow-up period. CASE REPORT We studied 60 selected individuals from 84 family members (32 males, 53...
July 10, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28688989/involvement-of-oxidative-stress-and-calcium-signaling-in-airborne-particulate-matter-induced-damages-in-human-pulmonary-artery-endothelial-cells
#20
J Deweirdt, J F Quignard, B Crobeddu, A Baeza-Squiban, J Sciare, A Courtois, S Lacomme, E Gontier, B Muller, J P Savineau, R Marthan, C Guibert, I Baudrimont
Recent studies have revealed that particulate matter (PM) exert deleterious effects on vascular function. Pulmonary artery endothelial cells (HPAEC), which are involved in the vasomotricity regulation, can be a direct target of inhaled particles. Modifications in calcium homeostasis and oxidative stress are critical events involved in the physiopathology of vascular diseases. The objectives of this study were to assess the effects of PM2.5 on oxidative stress and calcium signaling in HPAEC. Different endpoints were studied, (i) intrinsic and intracellular production of reactive oxygen species (ROS) by the H2DCF-DA probe, (ii) intrinsic, intracellular and mitochondrial production of superoxide anion (O2(-)) by electronic paramagnetic resonance spectroscopy and MitoSOX probe, (iii) reactive nitrosative species (RNS) production by Griess reaction, and (vi) calcium signaling by the Fluo-4 probe...
July 5, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
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