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https://www.readbyqxmd.com/read/28738584/production-of-stable-and-sensitive-sers-substrate-based-on-commercialized-porous-material-of-silanized-support
#1
Han Zhang, Lin Sun, Yuan Zhang, Yan Kang, Huilian Hu, Huirong Tang, Yiping Du
This paper reports accurate synthesis of a new type of surface-enhanced Raman spectroscopy (SERS) substrate based on gold nanoparticles decorated 201 red silanized diatomaceous supports. The developed SERS substrate is easy to fabricate, cost effective and offers sensitive rapid detection. The performance and stability of the SERS substrate was investigated and the results showed good SERS activity of substrate that can last for more than 6 months. Tiazophos and phosmet pesticides in aqueous solutions can be detected clearly at a low concentration of 0...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738581/the-g-bhq-synergistic-effect-improved-double-quenching-molecular-beacons-based-on-guanine-and-black-hole-quencher-for-sensitive-simultaneous-detection-of-two-dnas
#2
Dongshan Xiang, Fengquan Li, Chenyi Wu, Boan Shi, Kun Zhai
We designed two double quenching molecular beacons (MBs) with simple structure based on guanine (G base) and Black Hole Quencher (BHQ), and developed a new analytical method for sensitive simultaneous detection of two DNAs by synchronous fluorescence analysis. In this analytical method, carboxyl fluorescein (FAM) and tetramethyl-6-carboxyrhodamine (TAMRA) were respectively selected as fluorophore of two MBs, Black Hole Quencher 1 (BHQ-1) and Black Hole Quencher 2 (BHQ-2) were respectively selected as organic quencher, and three continuous nucleotides with G base were connected to organic quencher (BHQ-1 and BHQ-2)...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738575/analytical-methodology-for-the-electro-catalytic-determination-of-estradiol-and-progesterone-based-on-graphene-quantum-dots-and-poly-sulfosalicylic-acid-co-modified-electrode
#3
Majid Arvand, Shiva Hemmati
The goal of this study was to develop an electroanalytical method for the simultaneous determination of steroid hormones for the first time. The key factor in the electrochemical methods is the choice of suitable electrode materials. For this purpose, graphene quantum dots (GQDs) doped poly(sulfosalicylic acid) (PSSA) was immobilized on a glassy carbon electrode (GCE). Apart from exhibition strong and stable electrocatalytic response towards estradiol (E2) and progesterone (P4), the proposed sensor was able to distinguish two hormone's oxidation peaks clearly...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738566/preparation-and-evaluation-of-a-novel-n-benzyl-phenethylamino-%C3%AE-cyclodextrin-bonded-chiral-stationary-phase-for-hplc
#4
Liang Li, Biaoping Cheng, Rendan Zhou, Zhigang Cao, Chun Zeng, Laisheng Li
A novel N-benzyl-phenethylamino-β-cyclodextrin-bonded ordered mesoporous SBA-15 chiral stationary phase (BZCDP) for high-performance liquid chromatography (HPLC) was prepared. The structure and morphology of the ligand and the stationary phase were characterized by mass spectrometry, elemental analysis, infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and thermogravimetric analysis. The enantiomers of chiral compounds including nine common β-adrenergic blocker drugs (β-blockers), eight dansyl amino acids (DNS-AA) and six flavanones were successfully separated by polar organic solvent and reversed-phase chromatography, respectively...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28738457/-survey-of-economic-burden-of-hepatitis-b-related-diseases-in-12-areas-in-china
#5
Q S Ma, S Liang, H W Xiao, S X Zhang, G H Zhuang, Y H Zou, H Z Tan, J C Liu, Y H Zhang, A Q Xu, L Zhang, X X Feng, D S Hu, F Z Wang, F Q Cui, X F Liang
Objective: Less surveys on the economic burden of hepatitis B (HB)-related diseases have been conducted in China, so the socioeconomic harm caused by the diseases is not clear and the key parameters for economic evaluation of hepatitis B prevention and treatment are lacking. This study aimed to analyze the direct, indirect and intangible expenditures of hospitalized patients with HB-related diseases during hospitalization and during a year in different areas of China. Methods: The hospitals for infectious diseases and the large general hospitals in 12 areas in China were selected in the study...
July 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28738456/-cost-effectiveness-of-community-based-treatment-of-chronic-hepatitis-b-in-china
#6
S X Zhang, P C Yang, Y L Cai, Y Lin, Y H Zou
Objective: Since eliminating hepatitis B in China would need considerable public health resources, the economics problem of the strategy of community-based antiviral treatment for chronic hepatitis B (CHB) has become an important issue. The cost-effectiveness and affordability of the strategy were evaluated in this study. Methods: According to the advocacy on eliminating hepatitis B by WHO and the comprehensive protocol of community based prevention of major infectious diseases and the guideline for CHB prevention and treatment in China, the decision analytic Markov model was constructed with the parameters from national surveys or Meta-analysis...
July 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28738455/-cost-effectiveness-and-affordability-of-strategy-for-preventing-mother-to-child-transmission-of-hepatitis-b-in-china
#7
Y Lin, S X Zhang, P C Yang, Y L Cai, Y H Zou
Objective: To evaluate the cost effectiveness of nationwide prevention of mother to child transmission (PMTCT) strategy for hepatitis B, and estimate the willing to pay and budget impacts on the PMTCT. Methods: The decision analytic Markov model for the PMTCT was constructed and a birth cohort of Chinese infants born in 2013 was used to calculate the cost-effectiveness of the PMTCT among them compared with those receiving no intervention. The parameters in the model were obtained from literatures of national surveys or Meta-analysis...
July 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28738443/urethral-injection-therapy-for-urinary-incontinence-in-women
#8
REVIEW
Vivienne Kirchin, Tobias Page, Phil E Keegan, Kofi Om Atiemo, June D Cody, Samuel McClinton, Patricia Aluko
BACKGROUND: Urinary incontinence imposes a significant health and economic burden to society. Periurethral or transurethral injection of bulking agents is a minimally invasive surgical procedure used as one the surgical treatments of stress urinary incontinence (SUI) in adult women. OBJECTIVES: To assess the effects of periurethral or transurethral injection therapy on the cure or improvement of urinary incontinence in women. SEARCH METHODS: We searched the Cochrane Incontinence Group Specialised Trials Register (searched 8 November 2010) and the reference lists of relevant articles...
July 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28738271/heterogeneous-photocatalysis-of-tris-2-chloroethyl-phosphate-by-uv-tio2-degradation-products-and-impacts-on-bacterial-proteome
#9
Jinshao Ye, Juan Liu, Chongshu Li, Pulin Zhou, Shuang Wu, Huase Ou
The widespread, persistent and toxic organophosphorus esters (OPEs) have become one category of emerging environmental contaminants. Thus, it is in urgent need to develop a cost-effective and safe treatment technology for OPEs control. The current study is a comprehensive attempt to use UV/TiO2 heterogeneous photocatalysis for the degradation of a water dissolved OPEs, tris(2-chloroethyl) phosphate (TCEP). A pseudo-first order degradation reaction with a kobs of 0.3167 min(-1) was observed, while hydroxyl radical may be the dominating reactive oxidative species...
July 18, 2017: Water Research
https://www.readbyqxmd.com/read/28738137/public-health-and-economic-consequences-of-vaccine-hesitancy-for-measles-in-the-united-states
#10
Nathan C Lo, Peter J Hotez
Importance: Routine childhood vaccination is declining in some regions of the United States due to vaccine hesitancy, which risks the resurgence of many infectious diseases with public health and economic consequences. There are ongoing policy debates on the state and national level, including legislation around nonmedical (personal-belief) exemptions for childhood vaccination and possibly a special government commission on vaccine safety, which may affect vaccine coverage. Objective: To estimate the number of measles cases in US children and the associated economic costs under scenarios of different levels of vaccine hesitancy, using the case example of measles, mumps, and rubella (MMR) vaccination and measles...
July 24, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28738015/observational-study-to-estimate-the-changes-in-the-effectiveness-of-bacillus-calmette-gu%C3%A3-rin-bcg-vaccination-with-time-since-vaccination-for-preventing-tuberculosis-in-the-uk
#11
Punam Mangtani, Patrick Nguipdop-Djomo, Ruth H Keogh, Lucy Trinder, Peter G Smith, Paul Em Fine, Jonathan Sterne, Ibrahim Abubakar, Emilia Vynnycky, John Watson, David Elliman, Marc Lipman, Laura C Rodrigues
BACKGROUND: Until recently, evidence that protection from the bacillus Calmette-Guérin (BCG) vaccination lasted beyond 10 years was limited. In the past few years, studies in Brazil and the USA (in Native Americans) have suggested that protection from BCG vaccination against tuberculosis (TB) in childhood can last for several decades. The UK's universal school-age BCG vaccination programme was stopped in 2005 and the programme of selective vaccination of high-risk (usually ethnic minority) infants was enhanced...
July 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28737990/cost-effectiveness-of-novel-agents-in-medicare-patients-with-multiple-myeloma-findings-from-a-u-s-payer-s-perspective
#12
Ying Chen, David R Lairson, Wenyaw Chan, Jinhai Huo, Xianglin L Du
BACKGROUND: Since multiple myeloma (MM) incurs a substantial economic burden in care management, more and more discussion has been generated in recent years about the costs of novel antimyeloma drugs and their associated value. Because of these costs, economic assessment that quantifies value of care over the long-term is essential. OBJECTIVE: To determine the cost-effectiveness (measured as cost per life-year saved) of front-line novel agent-based therapy use among a cohort of elderly patients with MM in a real-world setting...
August 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28737987/factors-associated-with-patient-preferences-for-disease-modifying-therapies-in-multiple-sclerosis
#13
Ana L Hincapie, Jonathan Penm, Craig F Burns
BACKGROUND: Treatment adherence in patients with multiple sclerosis (MS) is essential to reduce the rate of acute neurological attacks, severity of relapses, and hospitalizations and to slow its progression. Adherence rates in MS patients have been shown to be affected by multiple factors, including physical or cognitive difficulties, perceived lack of treatment efficacy, treatment-related adverse events, injection anxiety, and frequency of administration. OBJECTIVE: To elicit the preferences of MS patients for noneconomic and economic attributes of current disease-modifying therapies (DMTs)...
August 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28737985/evaluation-of-patient-migration-patterns-and-related-health-care-costs-within-a-national-medicare-advantage-prescription-drug-plan-after-implementation-of-an-oxycodone-hcl-extended-release-access-restriction
#14
Chi-Chang Chen, Ajita P De, Brian Sweet, Rolin L Wade
BACKGROUND: Health plans use formulary restrictions (e.g., prior authorization, step therapy, tier change, nonformulary status) in an effort to control cost and promote quality, safety, and appropriate prescription utilization. Some Medicare payers perceive that the inclusion of certain agents, such as branded oxycodone HCl extended-release tablets (OERs), on their formularies is associated with attracting high-cost members to the plan. OBJECTIVE: To evaluate disenrollment rates, patient migration, and subsequent health care costs among OER users who disenrolled from a national Medicare Advantage Prescription Drug plan (study-MAPD) in the plan year following OER nonformulary restriction...
August 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28737929/enhanced-degradation-of-tce-on-a-superfund-site-using-endophyte-assisted-poplar-tree-phytoremediation
#15
Sharon Lafferty Doty, John Leonard Freeman, Christopher M Cohu, Joel Gerard Burken, Andrea Firrincieli, Andrew Simon, Zareen Khan, Jud G Isebrands, Joseph Lukas, Michael J Blaylock
Trichloroethylene (TCE) is a widespread environmental pollutant common in groundwater plumes associated with industrial manufacturing areas. We had previously isolated and characterized a natural bacterial endophyte, Enterobacter sp. strain PDN3, of poplar trees, that rapidly metabolizes TCE, releasing chloride ion. We now report findings from a successful three-year field trial of endophyte-assisted phytoremediation on the Middlefield-Ellis-Whisman Superfund Study Area TCE plume in the Silicon Valley of California...
July 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28737688/canadian-potential-healthcare-and-societal-cost-savings-from-consumption-of-pulses-a-cost-of-illness-analysis
#16
Mohammad M H Abdullah, Christopher P F Marinangeli, Peter J H Jones, Jared G Carlberg
Consumption of dietary pulses, including beans, peas and lentils, is recommended by health authorities across jurisdictions for their nutritional value and effectiveness in helping to prevent and manage major diet-related illnesses of significant socioeconomic burden. The aim of this study was to estimate the potential annual healthcare and societal cost savings relevant to rates of reduction in complications from type 2 diabetes (T2D) and incidence of cardiovascular disease (CVD) following a low glycemic index (GI) or high fiber diet that includes pulses, or 100 g/day pulse intake in Canada, respectively...
July 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28736640/systematic-review-and-a-meta-analysis-of-hospital-and-surgeon-volume-outcome-relationships-in-colorectal-cancer-surgery
#17
Ya Ruth Huo, Kevin Phan, David L Morris, Winston Liauw
BACKGROUND: Numerous hospitals worldwide are considering setting minimum volume standards for colorectal surgery. This study aims to examine the association between hospital and surgeon volume on outcomes for colorectal surgery. METHODS: Two investigators independently reviewed six databases from inception to May 2016 for articles that reported outcomes according to hospital and/or surgeon volume. Eligible studies included those in which assessed the association hospital or surgeon volume with outcomes for the surgical treatment of colon and/or rectal cancer...
June 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28736623/a-literature-review-of-cost-effectiveness-of-intravenous-recombinant-tissue-plasminogen-activator-for-treating-acute-ischemic-stroke
#18
Heesoo Joo, Guijing Wang, Mary G George
BACKGROUND: Intravenous recombinant tissue plasminogen activator (IV rtPA) is recommended treatment for acute ischemic stroke patients, but the cost-effectiveness of IV rtPA within different time windows after the onset of acute ischemic stroke is not well reviewed. AIMS: To conduct a literature review of the cost-effectiveness studies about IV rtPA by treatment times. SUMMARY OF REVIEW: A literature search was conducted using MEDLINE, EMBASE, CINAHL and Cochrane Library, with the key words acute ischemic stroke, tissue plasminogen activator, cost, economic benefit, saving, and incremental cost-effectiveness analysis...
2017: Stroke and Vascular Neurology
https://www.readbyqxmd.com/read/28736571/evaluation-of-quality-assessment-protocols-for-high-throughput-genome-resequencing-data
#19
REVIEW
Matteo Chiara, Giulio Pavesi
Large-scale initiatives aiming to recover the complete sequence of thousands of human genomes are currently being undertaken worldwide, concurring to the generation of a comprehensive catalog of human genetic variation. The ultimate and most ambitious goal of human population scale genomics is the characterization of the so-called human "variome," through the identification of causal mutations or haplotypes. Several research institutions worldwide currently use genotyping assays based on Next-Generation Sequencing (NGS) for diagnostics and clinical screenings, and the widespread application of such technologies promises major revolutions in medical science...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28736505/estimating-the-cost-effectiveness-of-daclatasvir%C3%A2-%C3%A2-sofosbuvir-versus-sofosbuvir%C3%A2-%C3%A2-ribavirin-for-patients-with-genotype-3-hepatitis-c-virus
#20
Phil McEwan, Samantha Webster, Thomas Ward, Michael Brenner, Anupama Kalsekar, Yong Yuan
BACKGROUND: As treatments for chronic hepatitis C are moving away from interferon-containing regimens, the most appropriate allocation of resources to higher cost, interferon-free, direct-acting antiviral (DAA) regimens needs to be assessed. Hepatitis C virus (HCV) genotype 3 is associated with faster disease progression and has fewer treatment options, historically, than other HCV genotypes. This analysis aims to estimate the comparative cost-effectiveness of two recently licenced interferon-free regimens for the treatment of HCV genotype 3...
2017: Cost Effectiveness and Resource Allocation: C/E
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