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https://www.readbyqxmd.com/read/28329928/-acute-effect-of-air-pollutants-carbon-monoxide-and-ozone-on-myocardial-infarction-mortality-in-ningbo
#1
X J Qian, G X Li, T F He, H Li, J Huang, G Z Xu, X B Guo, L Li
Objective: To explore the effect of carbon monoxide (CO) and ozone (O(3)) in the air on the myocardial infarction mortality in Ningbo, Zhejiang province, from 2011 to 2015. Methods: The data of daily air quality surveillance and the causes of deaths in Ningbo from January 1, 2011 to December 31, 2015 were collected and the time series study using a generalized additive model was conducted to evaluate the relationship between the mortality of myocardial infarction and the air pollutants after adjustment for the long-term trend of death, weather conditions," days of the week" and other confounding factors...
March 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28328303/the-role-of-pain-in-quitting-among-human-immunodeficiency-virus-hiv-positive-smokers-enrolled-in-a-smoking-cessation-trial
#2
Carrie J Aigner, Ellen R Gritz, Irene Tamí-Maury, George P Baum, Roberto C Arduino, Damon J Vidrine
BACKGROUND: Smoking rates among people living with human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS; PLWHA) are at least twice as high as rates in the general population. Consistent with the reciprocal model of pain and smoking, PLWHA with pain who smoke may use smoking as a means of coping with pain, thus presenting a potential barrier to quitting. The aim of this study is to better understand how pain relates to smoking cessation among 474 HIV-positive adults enrolled in a cell phone-delivered smoking cessation trial...
February 8, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28326312/a-comparison-of-published-multidimensional-indices-to-predict-outcome-in-idiopathic-pulmonary-fibrosis
#3
Charles Sharp, Huzaifa I Adamali, Ann B Millar
Idiopathic pulmonary fibrosis (IPF) has an unpredictable course and prognostic factors are incompletely understood. We aimed to identify prognostic factors, including multidimensional indices from a significant IPF cohort at the Bristol Interstitial Lung Disease Centre in the UK. Patients diagnosed with IPF between 2007 and 2014 were identified. Longitudinal pulmonary physiology and exercise testing results were collated, with all-cause mortality used as the primary outcome. Factors influencing overall, 12- and 24-month survival were identified using Cox proportional hazards modelling and receiver operating characteristic curve analysis...
January 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28323203/the-association-between-cardiorespiratory-fitness-and-pulmonary-diffusing-capacity
#4
Gerald S Zavorsky, James M Smoliga
Pulmonary diffusing capacity for nitric oxide (DL,NO) and carbon monoxide (DL,CO) measured at rest (mL/min/mmHg) is strongly associated with aerobic capacity (cardiorespiratory fitness or peak oxygen uptake, VO2peak) measured in L/min. Data from healthy, non-obese individuals from various studies (n=121 males and 81 females) were combined to examine this association. Subjects that were above the upper limit of normal (ULN, 97.5th percentile for age and sex and height) for DL,NO and DLCO had a higher median VO2peak compared to subjects below the ULN (Above the ULN=4...
March 16, 2017: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/28321059/arterial-carboxyhemoglobin-measurement-is-useful-for-evaluating-pulmonary-inflammation-in-subjects-with-interstitial-lung-disease
#5
Yu Hara, Masaharu Shinkai, Soichiro Kanoh, Yuji Fujikura, Bruce K Rubin, Akihiko Kawana, Takeshi Kaneko
Objective The arterial concentration of carboxyhemoglobin (CO-Hb) in subjects with inflammatory pulmonary disease is higher than that in healthy individuals. We retrospectively analyzed the relationship between the CO-Hb concentration and established markers of disease severity in subjects with interstitial lung disease (ILD). Methods The CO-Hb concentration was measured in subjects with newly diagnosed or untreated ILD and the relationships between the CO-Hb concentration and the serum biomarker levels, lung function, high-resolution CT (HRCT) findings, and the uptake in gallium-67 ((67)Ga) scintigraphy were evaluated...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28320610/carbon-monoxide-releasing-molecule-401-suppresses-polymorphonuclear-leukocyte-migratory-potential-by-modulating-f-actin-dynamics
#6
Ken Inoue, Eric K Patterson, Alfredo Capretta, Abdel R Lawendy, Douglas D Fraser, Gediminas Cepinskas
Carbon monoxide-releasing molecules (CORMs) suppress inflammation by reducing polymorphonuclear leukocyte (PMN) recruitment to the affected organs. We investigated modulation of PMN-endothelial cell adhesive interactions by water-soluble CORM-401 using an experimental model of endotoxemia in vitro. Human umbilical vein endothelial cells grown on laminar-flow perfusion channels were stimulated with 1 μg/mL lipopolysaccharide for 6 hours and perfused with 100 μmol/L CORM-401 (or inactive compound iCORM-401)-pretreated PMN for 5 minutes in the presence of 1...
March 17, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28320472/increased-serum-levels-of-fractalkine-and-mobilisation-of-cd34-cd45-endothelial-progenitor-cells-in-systemic-sclerosis
#7
Audrey Benyamine, Jérémy Magalon, Sylvie Cointe, Romaric Lacroix, Laurent Arnaud, Nathalie Bardin, Pascal Rossi, Yves Francès, Fanny Bernard-Guervilly, Gilles Kaplanski, Jean-Robert Harlé, Pierre-Jean Weiller, Philippe Berbis, David Braunstein, Elisabeth Jouve, Nathalie Lesavre, Françoise Couranjou, Françoise Dignat-George, Florence Sabatier, Pascale Paul, Brigitte Granel
BACKGROUND: The disruption of endothelial homeostasis is a major determinant in the pathogenesis of systemic sclerosis (SSc) and is reflected by soluble and cellular markers of activation, injury and repair. We aimed to provide a combined assessment of endothelial markers to delineate specific profiles associated with SSc disease and its severity. METHODS: We conducted an observational, single-centre study comprising 45 patients with SSc and 41 healthy control subjects...
March 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28319698/the-combined-effect-of-reduced-fossil-fuel-consumption-and-increasing-biomass-combustion-on-athens-air-quality-as-inferred-from-long-term-co-measurements
#8
Myrto Gratsea, Eleni Liakakou, Nikos Mihalopoulos, Anastasios Adamopoulos, Eirini Tsilibari, Evangelos Gerasopoulos
To evaluate the role of biomass burning emissions, and in particular of residential wood heating, as a result of the economic recession in Greece, carbon monoxide (CO) atmospheric concentrations from five (5) stations of the National Air Pollution Monitoring Network in Athens, spanning the period 2000-2015, in conjunction with black carbon (BC) concentrations from the NOA (National Observatory of Athens) station at Thissio were analysed. The contribution of the different sources to the diurnal cycle of these two pollutants is clear, resulting to a morning peak, mainly due to traffic, and a late evening peak attributed both to fossil fuel (traffic plus central heating) and biomass combustion...
March 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28319189/lung-function-parameters-improve-prediction-of-vo2peak-in-an-elderly-population-the-generation-100-study
#9
Erlend Hassel, Dorthe Stensvold, Thomas Halvorsen, Ulrik Wisløff, Arnulf Langhammer, Sigurd Steinshamn
Peak oxygen uptake (VO2peak) is an indicator of cardiovascular health and a useful tool for risk stratification. Direct measurement of VO2peak is resource-demanding and may be contraindicated. There exist several non-exercise models to estimate VO2peak that utilize easily obtainable health parameters, but none of them includes lung function measures or hemoglobin concentrations. We aimed to test whether addition of these parameters could improve prediction of VO2peak compared to an established model that includes age, waist circumference, self-reported physical activity and resting heart rate...
2017: PloS One
https://www.readbyqxmd.com/read/28317233/pirfenidone-and-nintedanib-for-pulmonary-fibrosis-in-clinical-practice-tolerability-and-adverse-drug-reactions
#10
Jonathan A Galli, Aloknath Pandya, Michelle Vega-Olivo, Chandra Dass, Huaqing Zhao, Gerard J Criner
BACKGROUND AND OBJECTIVE: The real-world tolerability of pirfenidone and nintedanib in non-clinical trial patients is unknown. Many patients with pulmonary fibrosis have significant medical co-morbidities or baseline characteristics that exclude them from clinical trial participation. METHODS: We conducted a retrospective chart review study on subjects prescribed nintedanib or pirfenidone for pulmonary fibrosis treatment (any aetiology) from September 2014 to February 2016...
March 20, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28303059/marginal-pulmonary-function-is-associated-with-poor-short-and-long-term-outcomes-in-lung-cancer-surgery
#11
Naoki Ozeki, Koji Kawaguchi, Toshiki Okasaka, Takayuki Fukui, Koichi Fukumoto, Shota Nakamura, Shuhei Hakiri, Kohei Yokoi
We sought to determine the short- and long-term prognoses among 'marginal-risk' non-small cell lung cancer patients who have a predicted postoperative- (ppo) forced expiratory volume in the first second (FEV1) of 30-60% and/or a ppo-diffusing capacity of the lung for carbon monoxide (DLCO) of 30-60%. The present study included 73 'marginal-risk' and 318 'normal-risk' patients who underwent anatomical resection for clinical stage I lung cancer between 2008 and 2012. The rates of postoperative morbidity, prolonged hospital stay, and overall survival were assessed...
February 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/28301077/application-of-methyl-bisphosphine-ligated-palladium-complexes-for-low-pressure-n-11-c-acetylation-of-peptides
#12
Thomas L Andersen, Patrik Nordeman, Heidi F Christoffersen, Hélène Audrain, Gunnar Antoni, Troels Skrydstrup
A mild and effective method is described for (11) C-labeling of peptides selectively at the N-terminal nitrogen or at internal lysine positions. The presented method relies on the use of specific biphosphine palladium-methyl complexes and their high reactivity towards amino-carbonylation of amine groups in the presence [(11) C]carbon monoxide. The protocol facilitates the production of native N-(11) C-acetylated peptides, without any structural modifications and has been applied to a selection of bioactive peptides...
March 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28300224/short-term-air-pollution-exposure-aggravates-parkinson-s-disease-in-a-population-based-cohort
#13
Hyewon Lee, Woojae Myung, Doh Kwan Kim, Satbyul Estella Kim, Clara Tammy Kim, Ho Kim
Increasing experimental evidence has suggested air pollution as new risk factor for neurological disease. Although long-term exposure is reportedly related to neurological disease, information on association with short-term exposure is scarce. We examined the association of short-term exposure to particles <2.5 μm (PM2.5), nitrogen dioxide (NO2), sulfur dioxide (SO2), ozone (O3), and carbon monoxide (CO) with PD aggravation in Seoul from the National Health Insurance Service-National Sample Cohort, Korea during 2002-2013...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28298908/serpentinization-influenced-groundwater-harbors-extremely-low-diversity-microbial-communities-adapted-to-high-ph
#14
Katrina I Twing, William J Brazelton, Michael D Y Kubo, Alex J Hyer, Dawn Cardace, Tori M Hoehler, Tom M McCollom, Matthew O Schrenk
Serpentinization is a widespread geochemical process associated with aqueous alteration of ultramafic rocks that produces abundant reductants (H2 and CH4) for life to exploit, but also potentially challenging conditions, including high pH, limited availability of terminal electron acceptors, and low concentrations of inorganic carbon. As a consequence, past studies of serpentinites have reported low cellular abundances and limited microbial diversity. Establishment of the Coast Range Ophiolite Microbial Observatory (California, U...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28296046/imidacloprid-is-degraded-by-cyp353d1v2-a-cytochrome-p450-over-expressed-in-resistant-strain-of-laodelphax-striatellus
#15
Mohammed Esmail Abdalla Elzaki, Mohammad Asaduzzaman Miah, Min Wu, Haomiao Zhang, Jian Pu, Ling Jiang, Zhaojun Han
BACKGROUND: Cytochrome P450s are associated with metabolizing of a wide range of compounds including insecticides. CYP353D1v2 has been found over-expressed in the imidacloprid-resistant strain of Laodelphax striatellus. Thus, this study was conducted to express CYP353D1v2 in Sf9 cell as a recombinant protein, to assess its ability in metabolizing imidacloprid. RESULTS: Western blot and carbon monoxide difference spectra analysis indicated that the intact CYP353D1v2 protein has been successfully expressed in insect cell Sf9...
March 10, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28294960/overview-of-potential-clinical-applications-of-hemoglobin-vesicles-hbv-as-artificial-red-cells-evidenced-by-preclinical-studies-of-the-academic-research-consortium
#16
REVIEW
Hiromi Sakai
Hemoglobin (Hb) is the most abundant protein in whole blood. This fact implies that the oxygen binding and releasing function of Hb is the most vital for sustaining life. All Hb is compartmentalized in red blood cells (RBCs) with corpuscular Hb concentration of about 35 g/dL, covered with a thin biomembrane. In spite of its abundance, Hb sometimes shows toxicity once it is leaked from RBCs. The shielding effect of the RBC membrane is physiologically important. Based on this structural importance, we have studied artificial red cells (Hb vesicles, HbV) as artificial oxygen carriers, which encapsulate a purified and concentrated Hb solution in phospholipid vesicles, mimicking the cellular structure of RBCs...
March 15, 2017: Journal of Functional Biomaterials
https://www.readbyqxmd.com/read/28294231/temperature-dependence-of-photocatalytic-co2-reduction-by-trans-cl-ru-bpy-co-2cl2-activation-energy-difference-between-co-and-formate-production
#17
Hitoshi Ishida, Akihiko Sakaba
The temperature dependence of photocatalytic CO2 reduction by trans(Cl)-Ru(bpy)(CO)2Cl2 (bpy: 2,2'-bipyridine) has been researched in ethanol (EtOH)/N,N-dimethylacetamide (DMA) solutions containing [Ru(bpy)3](2+) (a photosensitizer) and 1-benzyl-1,4-dihydronicotinamide (BNAH, an electron donor). The catalytic system efficiently reduces CO2 to carbon monoxide (CO) with formate (HCOO(-)) as a minor product. The mechanism of the catalysis consists of the electron-relay cycle and the catalytic cycle: in the former cycle the photochemically generated reduced species of the photosensitizer injects an electron to the catalyst, and in the latter the catalyst reduces CO2...
March 15, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28292711/co-releasing-molecules-corm2-attenuates-angiotensin-ii-induced-human-aortic-smooth-muscle-cell-migration-through-inhibition-of-ros-il-6-generation-and-matrix-metalloproteinases-9-expression
#18
Ming-Horng Tsai, Chiang-Wen Lee, Lee-Fen Hsu, Shu-Yu Li, Yao-Chang Chiang, Ming-Hsueh Lee, Chun-Han Chen, Hwey-Fang Liang, Jia-Mei How, Pey-Jium Chang, Ching-Mei Wu, I-Ta Lee
Ang II has been involved in the pathogenesis of cardiovascular diseases, and matrix metalloproteinase-9 (MMP-9) induced migration of human aortic smooth muscle cells (HASMCs) is the most common and basic pathological feature. Carbon monoxide (CO), a byproduct of heme breakdown by heme oxygenase, exerts anti-inflammatory effects in various tissues and organ systems. In the present study, we aimed to investigate the effects and underlying mechanisms of carbon monoxide releasing molecule-2 (CORM-2) on Ang II-induced MMP-9 expression and cell migration of HASMCs...
March 1, 2017: Redox Biology
https://www.readbyqxmd.com/read/28291366/enantioselective-iridium-catalyzed-allylic-alkylation-reactions-of-masked-acyl-cyanide-equivalents
#19
J Caleb Hethcox, Samantha E Shockley, Brian M Stoltz
The first enantioselective iridium-catalyzed allylic alkylation reaction of a masked acyl cyanide (MAC) reagent has been developed. The transformation allows for the use of an umpoled synthon, which serves as a carbon monoxide equivalent. The reaction proceeds with good yield and excellent selectivity up to gram scale for a wide range of substituted allylic electrophiles, delivering products amenable to the synthesis of highly desirable, enantioenriched vinylated α-aryl carbonyl derivatives.
March 14, 2017: Organic Letters
https://www.readbyqxmd.com/read/28291017/dft-and-tpd-study-of-the-role-of-steps-in-the-adsorption-of-co-on-copper-cu-410-vs-cu-100
#20
Anton Kokalj, Takamasa Makino, Michio Okada
Adsorption of carbon monoxide (CO) was studied on stepped Cu(410) by temperature programmed desorption (TPD) and density-functional-theory (DFT) calculations. For comparison, the adsorption of CO was characterized also on Cu(100) by DFT calculations. On Cu(410) TPD reveals two desorption peaks: a high temperature peak (∼210 K) is attributed to the desorption of CO from step-edge sites and low temperature peak (∼170 K) to desorption from terrace sites. According to DFT calculations, CO prefers to adsorb at step-edges of Cu(410), although the step-edge vs terrace site preference is rather small at low coverage of 1/16 ML, about 0...
March 14, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
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