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https://www.readbyqxmd.com/read/29145006/a-cross-disciplinary-evaluation-of-evidence-for-multipollutant-effects-on-cardiovascular-disease
#1
REVIEW
Thomas J Luben, Barbara J Buckley, Molini M Patel, Tina Stevens, Evan Coffman, Kristen M Rappazzo, Elizabeth O Owens, Erin P Hines, Danielle Moore, Kyle Painter, Ryan Jones, Laura Datko-Williams, Adrien A Wilkie, Meagan Madden, Jennifer Richmond-Bryant
BACKGROUND: The current single-pollutant approach to regulating ambient air pollutants is effective at protecting public health, but efficiencies may be gained by addressing issues in a multipollutant context since multiple pollutants often have common sources and individuals are exposed to more than one pollutant at a time. OBJECTIVE: We performed a cross-disciplinary review of the effects of multipollutant exposures on cardiovascular effects. METHODS: A broad literature search for references including at least two criteria air pollutants (particulate matter [PM], ozone [O3], oxides of nitrogen, sulfur oxides, carbon monoxide) was conducted...
November 13, 2017: Environmental Research
https://www.readbyqxmd.com/read/29144766/from-ketones-amines-and-carbon-monoxide-to-4-quinolones-palladium-catalyzed-oxidative-carbonylation
#2
Jiwei Wu, Yuchen Zhou, Ting Wu, Yi Zhou, Chien-Wei Chiang, Aiwen Lei
A novel method of palladium-catalyzed oxidative carbonylation of ketones, amines, and carbon monoxide for the synthesis of 4-quinolones has been developed. This protocol provides a straightforward route to construct useful 4-quinolone derivatives from inexpensive chemicals.
November 16, 2017: Organic Letters
https://www.readbyqxmd.com/read/29144744/partially-oxidized-sns2-atomic-layers-achieving-efficient-visible-light-driven-co2-reduction
#3
Xingchen Jiao, Xiaodong Li, Xiuyu Jin, Yongfu Sun, Jiaqi Xu, Liang Liang, Huanxin Ju, Junfa Zhu, Yang Pan, Wensheng Yan, Yue Lin, Yi Xie
Unraveling the role of surface oxide on affecting its native metal disulfide' CO2 photoreduction remains a grand challenge. Herein, we initially construct metal disulfide atomic layers and hence deliberately create oxidized domains on their surfaces. As an example, SnS2 atomic layers with different oxidation degrees are successfully synthesized. In situ FTIR spectra disclose the COOH* radical is the main intermediate, while density-functional-theory calculations reveal the COOH* formation is the rate-limiting step...
November 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29143239/improving-cellulase-production-in-submerged-fermentation-by-the-expression-of-a-vitreoscilla-hemoglobin-in-trichoderma-reesei
#4
Jie Lin, Xiamei Zhang, Bingran Song, Wei Xue, Xiaoyun Su, Xiuzhen Chen, Zhiyang Dong
Trichoderma reesei is well known as an industrial workhorse fungus in cellulase production. The low dissolved oxygen supply in the highly viscous medium of T. reesei remains a major bottleneck that hampers growth and cellulase production in submerged fermentation. Vitreoscilla hemoglobin (VHb) has been demonstrated to improve metabolism and protein production in different heterologous hosts under hypoxic conditions, but the use of VHb in T. reesei remains uninvestigated. This study examines the effect of VHb in improving T...
November 15, 2017: AMB Express
https://www.readbyqxmd.com/read/29142616/scaling-relations-for-acidity-and-reactivity-of-zeolites
#5
Chong Liu, Ionut Tranca, Rutger A van Santen, Emiel J M Hensen, Evgeny A Pidko
Zeolites are widely applied as solid acid catalysts in various technological processes. In this work we have computationally investigated how catalytic reactivity scales with acidity for a range of zeolites with different topologies and chemical compositions. We found that straightforward correlations are limited to zeolites with the same topology. The adsorption energies of bases such as carbon monoxide (CO), acetonitrile (CH3CN), ammonia (NH3), trimethylamine (N(CH3)3), and pyridine (C5H5N) give the same trend of acid strength for FAU zeolites with varying composition...
October 26, 2017: Journal of Physical Chemistry. C, Nanomaterials and Interfaces
https://www.readbyqxmd.com/read/29142039/risk-factors-associated-with-juvenile-idiopathic-arthritis-exposure-to-cigarette-smoke-and-air-pollution-from-pregnancy-to-disease-diagnosis
#6
Camila Maria Paiva França, Adriana Maluf Elias Sallum, Alfésio Luis Ferreira Braga, Fernando Louzada Strufaldi, Clovis Artur Almeida Silva, Sylvia Costa Lima Farhat
OBJECTIVE: To evaluate exposure to environmental factors inhaled during pregnancy and after birth until juvenile idiopathic arthritis (JIA) diagnosis among residents of a large city. METHODS: This is an exploratory case-control study that consists of 66 patients with JIA and 124 healthy controls matched by age and sex, living in the São Paulo, Brazil, metropolitan area until JIA diagnosis, and whose mothers had resided in this region during pregnancy. A structured and reliable questionnaire (κ index for test-retest was 0...
November 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/29140643/assessment-of-interventions-to-improve-air-quality-in-a-livestock-building
#7
T Renée Anthony, Anthony Y Yang, Thomas M Peters
This study examined the effectiveness of engineering controls to reduce contaminant concentrations in a swine farrowing room during winter in the U.S. Midwest. Over two winters, changes in air quality were evaluated following installation of a 1700 m3 h-1 (1000 cfm) recirculating ventilation system to provide 5.4 air exchanges per hour. This system incorporated one of two readily available dust control systems, one based on filtration and the other on cyclonic treatment. A second treatment evaluated reductions in carbon dioxide (CO2) associated with replacement of standard, unvented gas-fired heaters with new vented heaters, installed between the two winter test periods...
November 20, 2017: Journal of Agricultural Safety and Health
https://www.readbyqxmd.com/read/29139546/up-regulation-of-pyk2-pkc%C3%AE-dependent-ho-1-by-co-releasing-molecule-corm-2-attenuates-tnf-%C3%AE-induced-lung-inflammation
#8
Chih-Chung Lin, Yu-Ching Chiang, Rou-Ling Cho, Wei-Ning Lin, Chien-Chung Yang, Li-Der Hsiao, Chuen-Mao Yang
BACKGROUND AND PURPOSE: Heme oxygenase-1 (HO-1) could provide cytoprotection against various inflammatory diseases. However, the mechanisms underlying carbon monoxide-releasing molecule-2 (CORM-2)-induced HO-1 expression protecting against TNF-α-induced inflammatory responses in human pulmonary alveolar epithelial cells (HPAEpiCs) remain unknown. EXPERIMENTAL APPROACH: CORM-2-induced HO-1 protein and mRNA expression, and signaling pathways were determined by Western blot and real-time PCR, coupled using respective pharmacological inhibitors or transfection with siRNAs...
November 15, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29137909/use-of-expired-air-carbon-monoxide-testing-in-clinical-tobacco-treatment-settings
#9
REVIEW
Adam O Goldstein, Stephanie P Gans, Carol Ripley-Moffitt, Chris Kotsen, Matthew Bars
Carbon Monoxide (CO) testing is considered an easy, non-invasive, and objective contribution to the assessment of smoking behavior, as CO is rapidly absorbed into the blood stream when lit cigarettes or cigars are inhaled. CO testing is a medically important, billable outpatient service that can contribute to sustainability of face-to-face tobacco use treatment services by clinicians. This article reviews research on the clinical use of CO testing to provide bio-medical feedback in assessing smoking behavior, on educating smokers on tobacco health effects, on assisting with treatment planning, and as a motivational tool to encourage people to become tobacco free...
November 11, 2017: Chest
https://www.readbyqxmd.com/read/29132701/postoperative-outcome-after-pulmonary-surgery-for-non-small-cell-lung-cancer-in-elderly-patients
#10
Deniece D E M A Detillon, Eelco J Veen
BACKGROUND: Lung cancer is the main cause of cancer-related death in the Netherlands. Surgery offers the best potential cure, but lower rates of surgery are recorded for octogenarians because of concerns regarding morbidity and mortality. METHODS: We analyzed the Dutch Lung Surgery Audit database to determine the postoperative outcome of lung cancer resections for patients aged 60 years or more between January 2013 and December 2014. Three groups were compared: patients aged 80 years or more, patients aged 70 to 79 years, and patients aged 60 to 69 years...
November 10, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29131615/ir4-co-12-catalyzed-benzylic-c-sp3-h-silylation-of-2-alkylpyridines-with-hydrosilanes-leading-to-2-1-silyl-alkylpyridines
#11
Yoshiya Fukumoto, Masaya Hirano, Nao Matsubara, Naoto Chatani
The iridium-catalyzed C(sp3)-H silylation of 2-alkylpyridines with hydrosilanes at the benzylic position to afford 2-(1-silyl)alkylpyridines is described. The low product yield was markedly improved by adding 3,5-dimethylpyridine. Norbornene is also essential additives for the reaction to proceed as a hydrogen scavenger. Carbon monoxide plays an important role in the catalytic cycle as a ligand. Other transition metal carbonyls such as Rh4(CO)12 and Ru3(CO)12 can also be used as catalysts for this C-H silylation...
November 13, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29129117/calls-to-poison-centers-for-hookah-smoking-exposures
#12
Sandra S Retzky, Henry A Spiller, Priscilla Callahan-Lyon
Over the past decade, smoking behaviors have changed in the US. Hookah or waterpipe smoking is increasing, especially among youth and young adults. Social media sites describe the "hookah high" or "buzz", which may be related to nicotine, carbon monoxide, or other inhalants in hookah smoke. Most important is the risk of carbon monoxide poisoning. Case reports include a high number of victims presenting with loss of consciousness from either syncope or seizures. Anaphylaxis and a very rare respiratory hypersensitivity reaction, acute eosinophilic pneumonia, have also been reported from hookah smoking in previously healthy young adults...
November 13, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/29128723/copper-mediated-reductive-dechlorination-by-green-rust-intercalated-with-dodecanoate
#13
Li-Zhi Huang, Zhou Yin, Nicola G A Cooper, Weizhao Yin, Emil Tveden Bjerglund, Bjarne W Strobel, Hans Christian B Hansen
A layered Fe(II)-Fe(III) hydroxide (green rust, GR) was intercalated with dodecanoate (known as GRC12) and then amended with Cu(II) (GRC12(Cu)) before reaction with chloroform (CF), carbon tetrachloride (CT), trichloroethylene (TCE) or tetrachloroethylene (PCE). Reduction of CT by GRC12(Cu) was 37 times faster than with GRC12 alone before the active Cu species was consumed. The Cu mediated reaction followed the dichloroelimination pathway as observed for GRC12 alone, with carbon monoxide (82.5%) and formate (26...
November 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29128712/the-impact-of-a-brief-cessation-induction-intervention-for-waterpipe-tobacco-smoking-a-pilot-randomized-clinical-trial
#14
Eleanor L S Leavens, Ellen Meier, Alayna P Tackett, Mary Beth Miller, Noor N Tahirkheli, Emma I Brett, Dana M Carroll, Leslie M Driskill, Michael P Anderson, Theodore L Wagener
BACKGROUND: Waterpipe (WP) tobacco smoking delivers many of the same harmful toxicants as cigarette smoking and is on the rise in the US. This study evaluated the feasibility and efficacy of a brief personalized feedback intervention in affecting changes in WP smoking among current WP smokers. METHODS: Participants (N=109) were recruited as they entered WP lounges and completed a questionnaire and exhaled carbon monoxide (eCO) testing before entering the WP lounge...
October 28, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/29126755/-cannabis-and-lung-what-we-know-and-everything-we-don-t-know-yet
#15
REVIEW
T Urban, J Hureaux
Cannabis use increased sharply from 2010 to 2014 in France. Cannabis is often consumed with tobacco, although the use of marijuana is developing. Tobacco and cannabis smoke have many common characteristics in terms of irritants, carcinogens and carbon monoxide. They also differentiate by their dependence mechanisms, with nicotine and its receptors for tobacco and tetra-hydro-cannabinol (THC) and its specific receptors for cannabis. Chronic inhalation (700,000 daily users in France) over a long period most likely increases the relative risk of bronchial cancer...
November 7, 2017: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29126532/justifying-hyperbaric-oxygen-delivery-for-carbon-monoxide-poisoning-time-to-respond-to-pressure-with%C3%A2-a-large-scale-randomized-controlled-trial
#16
EDITORIAL
https://www.readbyqxmd.com/read/29125940/overcoming-the-energetic-limitations-of-syngas-fermentation
#17
REVIEW
Bastian Molitor, Esteban Marcellin, Largus T Angenent
The fermentation of synthesis gas (including carbon monoxide, carbon dioxide, and hydrogen) with anaerobic acetogens is an established biotechnological process that has recently been transferred to a commercial scale. The natural product spectrum of acetogens is natively restricted to acetate, ethanol, and 2,3-butanediol but is rapidly expanding to heterologous products. Syngas fermentation can achieve high carbon-efficiencies; however, the underlying metabolism is operating at a thermodynamic limit. This necessitates special enzymatic properties for energy conservation by acetogens...
November 6, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/29123453/efficiency-of-hyperbaric-oxygen-therapy-in-the-treatment-of-carbon-monoxide-toxicity
#18
Recep Hormova, Gokhan Polat
No abstract text is available yet for this article.
October 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/29123389/alveolar-capillary-reserve-during-exercise-in-patients-with-chronic-obstructive-pulmonary-disease
#19
Mehrdad Behnia, Courtney M Wheatley, Alberto Avolio, Bruce D Johnson
Background: Factors limiting exercise in patients with COPD are complex. With evidence for accelerated pulmonary vascular aging, destruction of alveolar-capillary bed, and hypoxic pulmonary vasoconstriction, the ability to functionally expand surface area during exercise may become a primary limitation. Purpose: To quantify measures of alveolar-capillary recruitment during exercise and the relationship to exercise capacity in a cohort of COPD patients. Methods: Thirty-two subjects gave consent (53% male, with mean ± standard deviation age 66±9 years, smoking 35±29 pack-years, and Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification of 0-4: 2...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29122256/cupping-therapy-an-analysis-of-the-effects-of-suction-on-skin-and-the-possible-influence-on-human-health
#20
REVIEW
Duane T Lowe
BACKGROUND: Cupping therapy is a traditional therapy that has been employed worldwide for thousands of years. Despite a lack of quality clinical studies evaluating the efficacy of cupping therapy, its long history and widespread use throughout the world suggests the commonly claimed health benefits should not be completely discounted as without merit. PURPOSE: The goal of this paper is to present the research detailing what is known concerning the effects of suction on skin and underlying tissue, and the reaction of the body to that stimulus...
November 2017: Complementary Therapies in Clinical Practice
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