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https://www.readbyqxmd.com/read/28535632/-short-term-effects-of-fine-particulate-matter-exposure-on-pulmonary-function-in-healthy-young-adults-a-time-series-study
#1
Q Yu, J P Liao, Y Hu, X Y Li, C Zhang, X L Li, C L Que, G F Wang
Objective: To explore the short-term effects of fine particulate matter (PM2.5) exposure on pulmonary function of healthy young adults in Beijing. Methods: In this time series study, twenty-four healthy young adults who living around Guanyuan area were investigated in Beijing. The follow-up study was lasted for 12 days in total from Nov. 28, 2016 to Dec. 9, 2016, and pulmonary spirometry and inpulse oscillometry parameters were measured daily. Air pollution data (including PM2.5, etc.) and meteorological data (temperature, humidity, etc...
May 16, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28535614/elucidating-bottlenecks-of-the-efficient-preparation-of-an-ab5-hexamer-mucosal-adjuvant-protein-ltm-by-genetic-engineering
#2
Di Liu, Fabiao Hu, Wenpeng Wang, Dong Wu, Xiujuan He, Wenyun Zheng, Haipeng Liu, Xingyuan Ma
Escherichia coli heat-labile enterotoxin (LT) and its non-toxic mutant (LTm) are well-known powerful mucosal adjuvants and immunogens. However, the yields of these adjuvants from genetically engineered strains remain at extremely low levels, thereby hindering their extensive application in fundamental and clinical research. Therefore, efficient production of these adjuvant proteins from genetically engineered microbes is a huge challenge in the field of molecular biology. In order to explore expression bottlenecks of LTm in E...
May 24, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28535524/genetics-and-autosomal-dominant-polycystic-kidney-disease-progression
#3
Valentina Corradi, Anna Giuliani, Fiorella Gastaldon, Massimo de Cal, Barbara Mancini, Anna Montaldi, Alberta Alghisi, Irene Capelli, Gaetano La Manna, Claudio Ronco
Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease, accounting for 10% of European patients on renal replacement therapy. In the previous years, many approaches to slow the progression of ADPKD were studied and many clinical trials published. In addition to having diagnostic role, the description of the genotype is even important to predict the progression of the disease and contributes, combined with several other factors, to a more precise patients classification...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28535469/novel-propanamides-as-fatty-acid-amide-hydrolase-inhibitors
#4
Alessandro Deplano, Carmine Marco Morgillo, Monica Demurtas, Emmelie Björklund, Mariateresa Cipriano, Mona Svensson, Sanaz Hashemian, Giovanni Smaldone, Emilia Pedone, F Javier Luque, Maria G Cabiddu, Ettore Novellino, Christopher J Fowler, Bruno Catalanotti, Valentina Onnis
Fatty acid amide hydrolase (FAAH) has a key role in the control of the cannabinoid signaling, through the hydrolysis of the endocannabinoids anandamide and in some tissues 2-arachidonoylglycerol. FAAH inhibition represents a promising strategy to activate the cannabinoid system, since it does not result in the psychotropic and peripheral side effects characterizing the agonists of the cannabinoid receptors. Here we present the discovery of a novel class of profen derivatives, the N-(heteroaryl)-2-(4-((2-(trifluoromethyl)pyridin-4-yl)amino)phenyl)propanamides, as FAAH inhibitors...
May 12, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28535433/a-highly-selective-surface-coating-for-enhanced-membrane-rejection-of-endocrine-disrupting-compounds-mechanistic-insights-and-implications
#5
Hao Guo, Yu Deng, Zhikan Yao, Zhe Yang, Jianqiang Wang, Chuner Lin, Tong Zhang, Baoku Zhu, Chuyang Y Tang
We designed a highly selective surface coating to achieve enhanced rejection of endocrine disrupting compounds (EDCs) by nanofiltration membranes. A commercial NF90 membrane was first coated with polydopamine (PDA) followed by in situ immobilization of silver nanoparticles (AgNPs). This PDA/AgNPs coating greatly improved EDC rejection at the expense of slight water permeability loss (4-10%). This improvement in rejection can be attributed to a combination of enhanced size exclusion and suppressed hydrophobic interaction...
May 18, 2017: Water Research
https://www.readbyqxmd.com/read/28535315/early-career-outcomes-of-family-medicine-residency-graduates-exposed-to-innovative-flexible-longitudinal-tracks
#6
Richard A Young, Dan Casey, Diana Singer, Elaine Waller, Patricia A Carney
BACKGROUND AND OBJECTIVES: The Preparing the Personal Physician for Practice (P4) project used a case series design to study innovations in the content, length, structure, and location of residency training in 14 geographically diverse family medicine programs between 2007 and 2012. We aimed to explore how offering flexible longitudinal tracks (FLT) affected graduates' scope of practice, particularly in maternal child health (MCH), which included at least 17 months of focused training that increased each year over 4 years...
May 2017: Family Medicine
https://www.readbyqxmd.com/read/28535116/is-mannitol-the-treatment-of-choice-for-patients-with-ciguatera-fish-poisoning
#7
Michael E Mullins, Robert S Hoffman
CONTEXT: Ciguatera fish poisoning arises primarily from consumption of carnivorous reef fish caught in tropical and sub-tropical waters. Ciguatoxins, a class of tasteless, heat-stable, polycyclic toxins produced by dinoflagellates, accumulate through the food chain and concentrate in various carnivorous fish, such as groupers, barracudas, wrasses, amberjack, kingfishes, and eels. Characteristics of ciguatera fish poisoning include early nausea, vomiting, and diarrhea in the first one to two days post ingestion, followed by the appearance of sensory disturbances...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28535077/sticky-situations-cyanoacrylate-exposures-reported-to-a-poison-control-system
#8
Shaun D Carstairs, Cynthia Koh, Lily Qian, Mariam Qozi, Grant Seivard, F Lee Cantrell
INTRODUCTION: Cyanoacrylate (Super Glue(®)) exposures are commonly reported to poison control centers, but little has been published in the medical literature regarding these exposures. We sought to characterize cyanoacrylate exposures reported to a poison control system. METHODS: We performed a retrospective review of a poison system's database for all cases of single-substance human exposure to cyanoacrylate-containing products from 2005 to 2015. Data collected included age, gender, route of exposure, clinical effects, treatments recommended and medical outcome...
May 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28535066/marangoni-flow-induced-evaporation-enhancement-on-binary-sessile-drops
#9
Pin Chen, Souad Harmand, Safouene Ouenzerfi, Jesse Schiffler
The evaporation processes of pure water, pure 1-butanol, and 5% 1-butanol aqueous solution drops on heated hydrophobic substrates are investigated to determine the effect of temperature on the drop evaporation behavior. The evolution of the parameters (contact angle, diameter, and volume) during evaporation measured using a drop shape analyzer and the infrared thermal mapping of the drop surface recorded by an infrared camera were used in investigating the evaporation process. The pure 1-butanol drop does not show any thermal instability at different substrate temperatures, while the convection cells created by the thermal Marangoni effect appear on the surface of the pure water drop from 50°C...
May 23, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28535062/supramolecular-hydrogel-formation-in-a-series-of-self-assembling-lipopeptides-with-varying-lipid-chain-length
#10
Valeria Castelletto, Amanpreet Kaur, Radoslaw M Kowalczyk, Ian W Hamley, Mehedi Reza, Janne Ruokolainen
The self-assembly in aqueous solution of three lipopeptides comprising a bioactive motif conjugated at the N terminus to dodecyl, tetradecyl or hexadecyl lipid chains has been examined. The bioactive motif is the peptide block YEALRVANEVTLN; a C-terminal fragment of the lumican proteoglycan. This study was motivated by our previous studies on the hexadecyl homologue C16-YEALRVANEVTLN which showed aggregation into β-sheet structures above a critical aggregation concentration (cac), but most remarkably we found that these aggregates were stable to dilution below the cac...
May 23, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28535045/bet-bromodomain-inhibitors-with-one-step-synthesis-discovered-from-virtual-screen
#11
Alex M Ayoub, Laura M L Hawk, Ryan J Herzig, Jiewei Jiang, Andrea J Wisniewski, Clifford T Gee, Peiliang Zhao, Jin-Yi Zhu, Norbert Berndt, Nana K Offei-Addo, Thomas G Scott, Jun Qi, James E Bradner, Timothy R Ward, Ernst Schönbrunn, Gunda I Georg, William C K Pomerantz
Chemical inhibition of epigenetic regulatory proteins BrdT and Brd4 is emerging as a promising therapeutic strategy in contraception, cancer, and heart disease. We report an easily synthesized dihydropyridopyrmidine pan-BET inhibitor scaffold, which was uncovered via a virtual screen followed by testing in a fluorescence anisotropy assay. Dihydropyridpyimidine 3 was subjected to further characterization and is highly selective for the BET family of bromodomains. Structure-activity relationship data and ligand deconstruction highlight the importance of the substitution of the uracil moiety for potency and selectivity...
May 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28534895/the-discovery-of-half-sandwich-iridium-complexes-containing-lidocaine-and-pyren-1-yl-ethynyl-derivatives-of-phenylcyanamide-ligands-for-photodynamic-therapy
#12
Leila Tabrizi
The successful design, synthesis, characterization, photophysical properties and anticancer mechanistic studies of a series of half-sandwich cyclopentadienyl iridium(iii) complexes of the type [Cp*Ir(III)(LC)(L1)](PF6), 1, and [Cp*Ir(III)(LC)(L2)](PF6), 2, in which Cp* = pentamethylcyclopentadienyl, L1 = 4-(pyren-10-yl)ethynyl-phenylcyanamide, L2 = 4'-(pyren-10-yl)ethynyl-4-cyanamidobiphenyl, and LC = lidocaine, are reported for their application as photodynamic therapy (PDT) agents. The DNA binding, DNA photocleavage, cellular uptake, and apoptosis of the complexes have also been studied...
May 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28534809/an-improved-rd-algorithm-for-maneuvering-bistatic-forward-looking-sar-imaging-with-a-fixed-transmitter
#13
Yue Yuan, Si Chen, Huichang Zhao
In order to improve the azimuth resolution beyond what monostatic synthetic aperture radar (SAR) can achieve in the forward-looking area, an asymmetric configuration bistatic SAR system and its imaging algorithm are proposed in this paper. The transmitter is mounted on a fixed platform in side-looking mode while the receiver moves along a nonlinear trajectory in forward-looking mode. Due to the high velocity and acceleration of the maneuvering platform in both along-track and height direction, the traditional algorithms are no longer applicable...
May 19, 2017: Sensors
https://www.readbyqxmd.com/read/28534797/transition-icons-for-time-series-visualization-and-exploratory-analysis
#14
Paul Nickerson, Raheleh Baharloo, Amal A Wanigatunga, Todd D Manini, Patrick J Tighe, Parisa Rashidi
The modern healthcare landscape has seen the rapid emergence of techniques and devices which temporally monitor and record physiological signals. The prevalence of time series data within the healthcare field necessitates the development of methods which can analyze the data in order to draw meaningful conclusions. Time series behavior is notoriously difficult to intuitively understand due to its intrinsic high-dimensionality, which is compounded in the case of analyzing groups of time series collected from different patients...
May 16, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28534685/biotin-interference-with-routine-clinical-immunoassays-understand-the-causes-and-mitigate-the-risks
#15
Shanika Samarasinghe, Farah Meah, Vinita Singh, Arshi Basit, Nicholas Emanuele, Mary Ann Emanuele, Alaleh Mazhari, Earle W Holmes
OBJECTIVES: The objectives of this report are to review the mechanisms of biotin interference with streptavidin/biotin-based immunoassays, identify automated immunoassay systems vulnerable to biotin interference, describe how to estimate and minimize the risk of biotin interference in vulnerable assays, and review the literature pertaining to biotin interference in endocrine function tests. METHODS: The data in the manufacturer's "Instructions for Use" for each of the methods utilized by seven immunoassay system were evaluated...
May 23, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28534658/dynamic-brain-glucose-metabolism-identifies-anti-correlated-cortical-cerebellar-networks-at-rest
#16
Dardo G Tomasi, Ehsan Shokri-Kojori, Corinde E Wiers, Sunny W Kim, Şukru B Demiral, Elizabeth A Cabrera, Elsa Lindgren, Gregg Miller, Gene-Jack Wang, Nora D Volkow
It remains unclear whether resting state functional magnetic resonance imaging (rfMRI) networks are associated with underlying synchrony in energy demand, as measured by dynamic 2-deoxy-2-[(18)F]fluoroglucose (FDG) positron emission tomography (PET). We measured absolute glucose metabolism, temporal metabolic connectivity (t-MC) and rfMRI patterns in 53 healthy participants at rest. Twenty-two rfMRI networks emerged from group independent component analysis (gICA). In contrast, only two anti-correlated t-MC emerged from FDG-PET time series using gICA or seed-voxel correlations; one included frontal, parietal and temporal cortices, the other included the cerebellum and medial temporal regions...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28534620/hydrogen-atom-transfer-hat-processes-promoted-by-the-quinolinimide-n-oxyl-radical-a-kinetic-and-theoretical-study
#17
Gino A DiLabio, Paola Franchi, Osvaldo Lanzalunga, Andrea Lapi, Fiorella Lucarini, Marco Lucarini, Marco Mazzonna, Viki Kumar Prasad, Barbara Ticconi
A kinetic study of the hydrogen atom transfer (HAT) reactions from a series of organic compounds to the quinolinimide-N-oxyl radical (QINO) has been carried out in CH3CN. The HAT rate constants are significantly higher than those observed with the phthalimide-N-oxyl radical (PINO) as a result of enthalpic and polar effects due to the presence of the N-heteroaromatic ring in QINO. The relevance of polar effects is supported by theoretical calculations carried out for the reactions of the two N-oxyl radicals with toluene which indicate that the HAT process is characterized by a significant degree of charge transfer enabled by the pi-stacking that occurs in the transition state structures between the toluene and the N-oxyl aromatic rings...
May 23, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28534582/selective-conversion-of-coconut-oil-to-fatty-alcohols-in-methanol-over-a-hydrothermally-prepared-cu-sio2-catalyst-without-extraneous-hydrogen
#18
Liubi Wu, Lulu Li, Bolong Li, Chen Zhao
A novel one-pot approach selects a hydrothermally synthesized Cu/SiO2 catalyst (consisting of Cu2O·SiO2 and Cu(0) surface species) to catalyze the reduction of a series of fatty esters, fatty acids, and coconut oil to fatty alcohols at 240 °C in methanol without extraneous hydrogen, attaining around 85% conversion and 100% selectivity.
May 23, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28534574/syntheses-structures-and-magnetic-properties-of-a-family-of-end-on-azido-bridged-cu-ii-ln-iii-complexes
#19
Xing-Cai Huang, Xin-Hua Zhao, Dong Shao, Xin-Yi Wang
The reaction of Cu(valdmpn) (H2valdmpn = N,N'-bis-(3-methoxysalicylidene)-1,3-diamino-2,2-dimethylpropane), LnCl3·nH2O (Ln = La(1), Ce (2), Pr(3), Nd(4), Sm(5), Eu(6), Gd(7), Tb(8), Dy(9), Ho(10), Er(11), Tm(12), Yb(13), Lu(14)) and NaN3 in methanol led to a whole series of heterometallic Cu(II)-Ln(III) complexes. The basic structural components of these complexes are the [Cu(II)(valdmpn)Ln(III)] units with a compartmental Schiff-base ligand. These [Cu(II)Ln(III)] units were then further connected by the end-on (EO) azides between the Ln(3+) centers to form tetranuclear {[CuLn](μ-N3)n[LnCu]} motifs, where n is 3 for the complexes of larger radii lanthanides (1CuLa to 5CuSm) and 2 for the complexes of smaller radii lanthanides (6CuEu to 14CuLu)...
May 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28534544/-factors-predicting-failure-in-empirical-antibiotic-treatment
#20
REVIEW
E J García-Lamberechts, J González-Del Castillo, A I Hormigo Sánchez, M J Núñez-Orantos, F J Candel, F J Martín-Sánchez
Infections are one of the main causes of morbidity and mortality in the population. The choice of empirical treatment is one of the most common decisions facing the physician. This first decision has consequences in the prognosis of the patient and the costs associated with the process. This review attempts to summarize the aspects that can lead to failure of antibiotic treatment by considering microbiological and pharmacological aspects, patient profile and infectious focus control. In addition, a series of recommendations are established to minimize this risk, from the point of view of diagnostic accuracy, adequate severity stratification of the patient, knowledge of the pharmacokinetic and pharmacodynamic aspects of antibiotics and control of the infectious focus...
April 30, 2017: Anales del Sistema Sanitario de Navarra
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