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https://www.readbyqxmd.com/read/28340521/stable-and-controllable-synthesis-of-silver-nanowires-for-transparent-conducting-film
#1
Bitao Liu, Hengqing Yan, Shanyong Chen, Youwei Guan, Guoguo Wu, Rong Jin, Lu Li
Silver nanowires without particles are synthesized by a solvothermal method at temperature 150 °C. Silver nanowires are prepared via a reducing agent of glycerol and a capping agent of polyvinylpyrrolidone (M w  ≈ 1,300,000). Both of them can improve the purity of the as-prepared silver nanowires. With controllable shapes and sizes, silver nanowires are grown continuously up to 10-20 μm in length with 40-50 nm in diameter. To improve the yield of silver nanowires, the different concentrations of AgNO3 synthesis silver nanowires are discussed...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28339746/in-vitro-cytotoxic-and-ace-inhibitory-activities-of-promod-278p-hydrolysate-of-ovotransferrin-from-chicken-egg-white
#2
S H Moon, J H Lee, J H Kim, H-D Paik, D U Ahn
Peptides released from egg proteins via enzymatic hydrolysis show various bioactivities such as antimicrobial, antioxidant, antihypertensive, and immunomodulatory properties. The objective of this study was to investigate the cytotoxic and Angiotensin Converting Enzyme (ACE)-inhibitory activities of ovotransferrin and its promod 278P enzyme hydrolysate. Ovotransferrin from egg white was hydrolyzed using promod 278P at 45°C for 3 hours. Using the MTT assay, the cytotoxicity of ovotransferrin and promod 278P hydrolysate of ovotransferrin were evaluated in human cancer cell lines of various tissue origins...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339659/the-use-of-guideline-recommended-beta-blocker-therapy-in-primary-prevention-implantable-cardioverter-defibrillator-patients-insight-from-danish-nationwide-registers
#3
Anne-Christine Ruwald, Gunnar Hilmar Gislason, Michael Vinther, Jens Brock Johansen, Jens Cosedis Nielsen, Helen Høgh Petersen, Christian Torp-Pedersen, Sam Riahi, Christian Jøns
Aims: We aimed to examine the use of guideline recommended beta-blocker therapy prior to and after primary prevention implantable cardioverter defibrillator (ICD) implantation in a 'real-life' setting. Methods and results: From the Danish Pacemaker and ICD Registry we identified all 1st-time primary prevention ICD and cardiac resynchronization therapy defibrillator (CRT-D) implantations in Denmark from 2007-12 (n = 2935). Use of beta-blocker, type and dose was acquired through the Danish Prescription Registry...
February 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28334230/guided-bayesian-imputation-to-adjust-for-confounding-when-combining-heterogeneous-data-sources-in-comparative-effectiveness-research
#4
Joseph Antonelli, Corwin Zigler, Francesca Dominici
In comparative effectiveness research, we are often interested in the estimation of an average causal effect from large observational data (the main study). Often this data does not measure all the necessary confounders. In many occasions, an extensive set of additional covariates is measured for a smaller and non-representative population (the validation study). In this setting, standard approaches for missing data imputation might not be adequate due to the large number of missing covariates in the main data relative to the smaller sample size of the validation data...
March 3, 2017: Biostatistics
https://www.readbyqxmd.com/read/28333961/phytochemical-investigation-of-aloe-pulcherrima-roots-and-evaluation-for-its-antibacterial-and-antiplasmodial-activities
#5
Dele Abdissa, Girma Geleta, Ketema Bacha, Negera Abdissa
Medicinal plants with documented traditional uses remain an important source for the treatment of a wide range of ailments. Evidence shows that majority of the Ethiopian population are still dependent on traditional medicine. Aloe pulcherrima Gilbert & Sebsebe is one of the endemic Aloe species traditionally used for the treatment of malaria and wound healing in central, Southern and Northern part of Ethiopia. The aim of the current study was, therefore, to isolate active compounds from roots of A. pulcherrima and evaluate for their antibacterial and antiplasmodial activities using standard test strains...
2017: PloS One
https://www.readbyqxmd.com/read/28333604/patient-preferences-for-discussing-childhood-trauma-in-primary-care
#6
Ellen Goldstein, Ninad Athale, Andrés F Sciolla, Sheryl L Catz
CONTEXT: Exposure to traumatic events is common in primary care patients, yet health care professionals may be hesitant to assess and address the impact of childhood trauma in their patients. OBJECTIVE: To assess patient preferences for discussing traumatic experiences and posttraumatic stress disorder (PTSD) with clinicians in underserved, predominantly Latino primary care patients. DESIGN: Cross-sectional study. MAIN OUTCOME MEASURE: We evaluated patients with a questionnaire assessing comfort to discuss trauma exposure and symptoms using the Adverse Childhood Experiences (ACE) Study questionnaire and the Primary Care-PTSD screen...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28333462/lattice-solvent-effects-in-the-spin-crossover-of-an-fe-ii-based-material-the-key-role-of-intermolecular-interactions-between-solvent-molecules
#7
Maria Fumanal, Fernando Jiménez-Grávalos, Jordi Ribas-Arino, Sergi Vela
The spin transition of Fe(II) complexes is the subject of intensive synthetic and computational efforts. In this manuscript, we analyze the spin crossover (SCO) of [Fe(E-dpsp)2](2+) (1), which features a spin transition depending on the cocrystallizing solvent molecules. Whereas the use of acetone results in a hysteretic spin transition at ∼170 K, the use of propylene carbonate (PC) results in a permanent diamagnetic signal up to 300 K. By means of DFT+U+D2 calculations in the solid state of the material, we unravel the reasons for such different behavior...
March 23, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28333422/ace-symposium-seeks-ways-to-reduce-regulatory-burden
#8
(no author information available yet)
No abstract text is available yet for this article.
July 2016: Physiologist
https://www.readbyqxmd.com/read/28333109/angiotensin-i-converting-enzyme-ace-inhibitory-peptides-from-plants
#9
REVIEW
Ceren Daskaya-Dikmen, Aysun Yucetepe, Funda Karbancioglu-Guler, Hayrettin Daskaya, Beraat Ozcelik
Hypertension is an important factor in cardiovascular diseases. Angiotensin-I-converting enzyme (ACE) inhibitors like synthetic drugs are widely used to control hypertension. ACE-inhibitory peptides from food origins could be a good alternative to synthetic drugs. A number of plant-based peptides have been investigated for their potential ACE inhibitor activities by using in vitro and in vivo assays. These plant-based peptides can be obtained by solvent extraction, enzymatic hydrolysis with or without novel food processing methods, and fermentation...
March 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28332511/risk-of-acute-myocardial-infarction-after-discontinuation-of-antihypertensive-agents-a-case-control-study
#10
F F Alharbi, P C Souverein, M C de Groot, A H Maitland-van der Zee, A de Boer, O H Klungel
We performed a nested case-control study in a cohort of antihypertensive drug users to assess the association between discontinuation of different antihypertensive agents and the risk of acute myocardial infarction (AMI). Cases and controls were drawn from the Utrecht Cardiovascular Pharmacogenetics database. Patients who were hospitalised for their first AMI were considered cases and controls were not hospitalised for AMI. Antihypertensive users were defined as current users if the index date (date of AMI) fell within the prescribed duration or as discontinuers if this date fell outside the prescribed duration...
March 23, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28332417/cost-effectiveness-of-angiotensin-converting-enzyme-inhibitors-versus-angiotensin-ii-receptor-blockers-as-first-line-treatment-in-autosomal-dominant-polycystic-kidney-disease
#11
L A Clark, S Whitmire, S Patton, C Clark, C M Blanchette, R Howden
INTRODUCTION: Autosomal dominant polycystic kidney disease (ADPKD) is a rare kidney disorder impacting approximately 1:2500 individuals among the general US population. Hypertension is a significant predictor of ADPKD progression and risk factor for development of cardiovascular disease (CVD), the most common cause for mortality among ADPKD patients. Angiotensin-converting enzymes inhibitors (ACE-I) are widely used as first-line treatment in ADPKD for the management of hypertension. However, their cost-effectiveness relative to other hypertensive medications, such as angiotensin II receptor blockers (ARB) has never been assessed...
March 23, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28332345/high-incidence-of-virulence-factors-among-clinical-enterococcus-faecalis-isolates-in-southwestern-iran
#12
Hamid Heidari, Somayeh Hasanpour, Hadi Sedigh Ebrahim-Saraie, Mohammad Motamedifar
BACKGROUND: Over the past two decades, enterococci have emerged as an important agent responsible for hospital acquired infection. Several virulence factors contribute to the adherence, colonization, evasion of the host immune response, and pathogenicity and severity of the infection. Enterococcus faecalis is the most common and virulent species causing infections in hospitalized patients. The aim of the present study was to examine the prevalence of genes encoding virulence factors and antimicrobial resistance patterns of E...
March 13, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28331214/antihypertensive-medications-and-the-risk-of-kidney-stones-in-older-adults-a-retrospective-cohort-study
#13
R Todd Alexander, Eric McArthur, Racquel Jandoc, Blayne Welk, Jade S Hayward, Arsh K Jain, Branko Braam, Veit Flockerzi, Amit X Garg, Robert Ross Quinn
Antihypertensives are widely prescribed and could influence kidney stone risk by altering urinary calcium excretion. However, the impact of different classes of antihypertensives on kidney stone risk is unknown. To assess this impact, we conducted a retrospective, population-based cohort study using linked health administrative databases. Individuals aged >65 years who initiated one of the four antihypertensive classes (that is, angiotensin-converting enzyme inhibitors (ACEis)/angiotensin receptor blockers (ARBs), beta-blockers, calcium channel blockers or thiazide diuretics) were included...
March 23, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28330649/effect-of-sacubitril-valsartan-versus-enalapril-on-glycaemic-control-in-patients-with-heart-failure-and-diabetes-a-post-hoc-analysis-from-the-paradigm-hf-trial
#14
Jelena P Seferovic, Brian Claggett, Sara B Seidelmann, Ellen W Seely, Milton Packer, Michael R Zile, Jean L Rouleau, Karl Swedberg, Martin Lefkowitz, Victor C Shi, Akshay S Desai, John J V McMurray, Scott D Solomon
BACKGROUND: Diabetes is an independent risk factor for heart failure progression. Sacubitril/valsartan, a combination angiotensin receptor-neprilysin inhibitor, improves morbidity and mortality in patients with heart failure with reduced ejection fraction (HFrEF), compared with the angiotensin-converting enzyme inhibitor enalapril, and improves peripheral insulin sensitivity in obese hypertensive patients. We aimed to investigate the effect of sacubitril/valsartan versus enalapril on HbA1c and time to first-time initiation of insulin or oral antihyperglycaemic drugs in patients with diabetes and HFrEF...
March 17, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28330519/insecticidal-effects-of-extracts-of-humulus-lupulus-hops-l-cones-and-its-principal-component-xanthohumol
#15
T Aydin, N Bayrak, E Baran, A Cakir
Insecticidal effects of the dichloromethane, ethyl acetate, acetone, ethanol and methanol extracts of Humulus lupulus (hops) L. cones and its principal components, xanthohumol was investigated on five stored pests, Sitophilus granarius (L.), Sitophilus oryzae (L.), Acanthoscelides obtectus (Say.), Tribolium castaneum (Herbst) and Lasioderma serricorne (F.). The mortality of adults of the insects treated with 2, 5, 5, 10 and 20 mg ml̠-1 concentrations of the extracts and xanthuhumol was counted after 24, 48, 72, 96 and 120 h...
March 23, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28330273/purification-and-characterization-of-polygalacturonase-from-aspergillus-fumigatus-mtcc-2584-and-elucidating-its-application-in-retting-of-crotalaria-juncea-fiber
#16
Gautam Anand, Sangeeta Yadav, Dinesh Yadav
Polygalacturonases represents an important member of pectinases group of enzymes with diverse industrial applications and is widely distributed among fungi, bacteria, yeasts, plants and some plant parasitic nematodes. An endo-polygalacturonase from a new fungal source Aspergillus fumigatus MTCC 2584 was produced under solid-state fermentation conditions and was purified simply by acetone precipitation and gel-filtration chromatography technique. The approximate molecular weight of the purified PG was found to be 43...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330233/improvement-of-shelf-life-of-soymilk-using-immobilized-protease-of-oerskovia-xanthineolytica-ncim-2839
#17
A K Sahoo, V S Gaikwad, R C Ranveer, P B Dandge, S R Waghmare
Protease enzyme has lot of commercial applications, so the cost-effective production of protease using sunflower oil seed waste was carried out from Oerskovia xanthineolyitca NCIM 2839. The maximum protease production was after 24 h of incubation with 2.5 % oil seed waste concentration. O. xanthineolytica was found to produce two proteases-P1 and P2. The proteases were purified using 60 % cold acetone precipitation and DEAE-cellulose ion exchange chromatography. SDS-PAGE revealed molecular weight of P1 and P2 was 36 and 24 kDa, respectively...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330217/sulfitolytic-and-keratinolytic-potential-of-chryseobacterium-sp-rbt-revealed-hydrolysis-of-melanin-containing-feathers
#18
Ranjit G Gurav, Jingchun Tang, Jyoti P Jadhav
In black feathers, melanin is embedded in keratin matrix that makes feather more resistance to the microbial degradation. Chryseobacterium sp. RBT previously isolated from the poultry waste disposable site revealed strong sulfitolytic and keratinolytic activities. Maximum keratinase activity was observed at 48 h (89.12 U ml(-1)) showed 83 % of native black feather degradation. The concentration of free sulfhydryl groups released during degradation was 0.648 × 10(-4) M (12 h), 2.144 × 10(-4) M (96 h), and however, declined on prolong incubation to 1...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330083/enzymatic-production-of-glucosamine-and-chitooligosaccharides-using-newly-isolated-exo-%C3%AE-d-glucosaminidase-having-transglycosylation-activity
#19
Sujata Sinha, Subhash Chand, Pushplata Tripathi
Exochitosanase secreting fungus (A. fumigatus IIT-004) was isolated from fish waste using 1 % (w/v) chitosan as sole carbon source after multistage screening. Chitosan-dependent exochitosanase enzyme production (6 IU ml(-1)) in log phase of growth (chitosan utilization rate 0.11 g g(-1) cell h(-1)) was observed for Aspergillus fumigatus in chitosan minimal salt medium and there was no enzyme production in glucose medium. Enzyme production was found to be extracellular and subjected to purification by a number of steps like acetone fractionation as well as column chromatography...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329460/model-based-comparison-of-the-normal-and-fontan-circulatory-systems-part-iii
#20
Raymond L Watrous, Alvin J Chin
BACKGROUND: For patients with the Fontan circulatory arrangement, angiotensin-converting enzyme inhibition, guanylate cyclase activation, phosphodiesterase 5 inhibition, and endothelin receptor antagonism have so far resulted in little or no improvement in [Formula: see text] or peak cardiac index (CI), suggesting that our understanding of the factors that most impact the exercise hemodynamics is incomplete. METHODS: To facilitate comparisons with clinical reports of the exercise performance of preadolescent Fontan patients, we rescaled our previously reported computational models of a two-year-old normal child and similarly aged Fontan patient, extended our Fontan model to capture the nonlinear relationship between flow and resistance quantified from previous computational fluid dynamic analyses of the total cavopulmonary connection (TCPC), and added respiration as well as skeletal muscle contraction...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
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