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https://www.readbyqxmd.com/read/28193352/a-straightforward-validated-liquid-chromatography-coupled-to-tandem-mass-spectrometry-method-for-the-simultaneous-detection-of-nine-drugs-of-abuse-and-their-metabolites-in-hair-and-nails
#1
Delphine Cappelle, Mireille De Doncker, Celine Gys, Kamelia Krysiak, Steven De Keukeleire, Walid Maho, Cleo L Crunelle, Geert Dom, Adrian Covaci, Alexander L N van Nuijs, Hugo Neels
Hair and nails allow for a stable accumulation of compounds over time and retrospective investigation of past exposure and/or consumption. Owing to their long window of detection (weeks to months), analysis of these matrices can provide information complementary to blood and urine analysis or can be used in standalone when e.g. elimination from the body has already occurred. Drugs of abuse are often used together and, therefore, multi-analyte methods capable of detecting several substances and their metabolites in a single run are of importance...
April 1, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28192758/ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-for-simple-and-simultaneous-quantification-of-cannabinoids
#2
Rohitash Jamwal, Ariel R Topletz, Bharat Ramratnam, Fatemeh Akhlaghi
Cannabis is used widely in the United States, both recreationally and for medical purposes. Current methods for analysis of cannabinoids in human biological specimens rely on complex extraction process and lengthy analysis time. We established a rapid and simple assay for quantification of Δ(9)-tetrahydrocannabinol (THC), cannabidiol (CBD), 11-hydroxy Δ(9)-tetrahydrocannabinol (11-OH THC) and 11-nor-9-carboxy-Δ(9)-tetrahydrocannbinol (THCCOOH) in human plasma by U-HPLC-MS/MS usingΔ9-tetrahydrocannabinol-D3 (THC-D3) as the internal standard...
February 6, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28174126/accuracy-of-asge-high-risk-criteria-in-evaluation-of-patients-with-suspected-common-bile-duct-stones
#3
Huiqin He, Chenfei Tan, Jiaguo Wu, Ning Dai, Weiling Hu, Yawen Zhang, Loren Laine, James Scheiman, John J Kim
BACKGROUND AND AIMS: Endoscopic retrograde cholangiopancreatography (ERCP) is recommended for patients considered high-risk for choledocholithiasis after biochemical testing and abdominal ultrasound. Our aim was to determine whether American Society for Gastrointestinal Endoscopy (ASGE) guidelines accurately select patients where the risk of ERCP is justified. METHODS: Consecutive patients hospitalized with suspected choledocholithiasis at Sir Run Run Shaw Hospital who received biochemical testing, abdominal ultrasound, and definitive testing for choledocholithiasis (magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound (EUS), ERCP, intraoperative cholangiogram (IOC), common bile duct (CBD) exploration) were identified...
February 4, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28153282/utilizing-online-dual-spe-lc-with-hrms-for-the-simultaneous-quantification-of-amphotericin-b-fluconazole-and-fluorocytosine-in-human-plasma-and-cerebrospinal-fluid
#4
Lihua Qu, Jing Qian, Ping Ma, Zheng Yin
Amphotericin B (AMB), fluconazole (FZ), and fluorocytosine (FC) are recommended for HIV-associated cryptococcal meningitis (CM) patients as preferred antibiotics. This study presents a fast and automated online-dual-solid phase extraction (SPE)-LC coupled with high resolution mass spectrometer (HRMS) method to simultaneously measure the concentrations of AMB, FZ, and FC in human plasma and cerebrospinal fluid (CSF). Automated sample clean-up was performed on the human plasma and CSF samples with stop-flow heart-cutting two dimensional (2D) separation using a online-dual-SPE system, allowing retention and accumulation of AMB, FZ, and carbamazepine (CBZ, Internal standard (IS)) by the Oasis(®)HLB cartridge, and retention and accumulation of FC and 5-methylcytosine hydrochloride (MC, IS) by the HyperSep Hypercarb cartridge respectively...
April 1, 2017: Talanta
https://www.readbyqxmd.com/read/28152859/faster-ways-of-pursuing-quality-control-using-ehr-electronic-health-record
#5
Samip R Master, Glenn Morris Mills, Richard P Mansour
: 169 Background: In this era of electronic health records (EHR), quality monitoring can be a fast repetitive process. Having access to the relational database of the EHR permits rapid case identification and quality indicator determination. We hereby describe evaluation of hepatitis B testing prior to rituximab administration, a quality measure as per ASCO guidelines. METHODS: We connected SQL Query Manager with EPIC Clarity database. Using the object model for medication orders, location and department, we used SQL language to build a temporary dataset of all patients who have a completed order for a Rituximab infusion at a specific department location within the past 6 months...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28150477/red-ginseng-as-an-ergogenic-aid-a-systematic-review-of-clinical-trials
#6
REVIEW
Nan Hee Lee, Hyun Chul Jung, Sukho Lee
Purpose: This systematic review was performed to summarize clinical trials assessing the effect of Red Ginseng (RG) supplementation on exercise performance and fatigue recovery. Methods: Two English databases (PUBMED, MEDLINE) and two Korean databases (KISS, RISS) were used as systematic searching engines. We included only articles written in the English and Korean languages. Clinical trials, which evaluated exercise performance and recovery variables with RG supplementation, were included in this review...
31, 2016: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/28137276/towards-standardization-of-next-generation-sequencing-of-ffpe-samples-for-clinical-oncology-intrinsic-obstacles-and-possible-solutions
#7
Maxim Ivanov, Konstantin Laktionov, Valery Breder, Polina Chernenko, Ekaterina Novikova, Ekaterina Telysheva, Sergey Musienko, Ancha Baranova, Vladislav Mileyko
BACKGROUND: Next generation sequencing has a potential to revolutionize the management of cancer patients within the framework of precision oncology. Nevertheless, lack of standardization decelerated entering of the technology into the clinical testing space. Here we dissected a number of common problems of NGS diagnostics in oncology and introduced ways they can be resolved. METHODS: DNA was extracted from 26 formalin fixed paraffin embedded (FFPE) specimens and processed with the TrueSeq Amplicon Cancer Panel (Illumina Inc, San Diego, California) targeting 48 cancer-related genes and sequenced in single run...
January 31, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28130542/optimization-and-validation-of-high-resolution-mass-spectrometry-data-analysis-parameters
#8
Jennifer M Colby, Katie L Thoren, Kara L Lynch
High-resolution mass spectrometry (HRMS) has gained recognition as a valuable tool for comprehensive drug screening in a variety of biological matrices. HRMS instruments collect untargeted, accurate mass data, which permit identification of known and unknown compounds in a single analytical run. One of the most challenging aspects of implementing an HRMS drug screen is establishing appropriate data analysis parameters for identifying compounds. Unlike other types of mass spectrometry data, guidelines for HRMS data analysis and acceptability criteria have not been established...
January 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28098395/first-uhplc-ms-ms-method-coupled-with-automated-on-line-spe-for-quantification-both-of-tacrolimus-and-everolimus-in-peripheral-blood-mononuclear-cells-and-its-application-on-samples-from-co-treated-pediatric-patients
#9
Debora Pensi, Amedeo De Nicolò, Michele Pinon, Clarissa Pisciotta, Pier Luigi Calvo, Antonello Nonnato, Renato Romagnoli, Francesco Tandoi, Giovanni Di Perri, Antonio D'Avolio
Tacrolimus (TAC, FK-506) and everolimus (EVE, RAD001) are immunosuppressors used to treat pediatric patients undergoing liver transplantation. Their hematic TDM by liquid chromatography became standard practice. However, it does not always reflect concentrations at their active site. Our aim was to develop and validate a new method for the simultaneous TAC and EVE quantification into target cells: Peripheral-Blood-Mononuclear-Cells (PBMCs). PBMCs were collected using Cell-Preparation-Tubes; cells number and MCV were evaluated by an automatic cell counter...
January 18, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28098262/quantification-of-the-sources-and-composition-of-particulate-matter-by-field-deployable-mass-spectrometry-implications-for-air-quality-and-public-health
#10
Patrick L Hayes
Airborne particulate matter less than 2.5 μm in diameter (PM2.5) negatively impacts air quality in cities throughout the world where it has been linked to increased cardiac and respiratory morbidity and mortality. For this reason PM2.5 standards have been established by many countries and the World Health Organization. However, these guidelines are regularly exceeded in North America, Europe and East Asia. While PM2.5 is often reported as a single atmospheric species, it is actually a mixture of organic and inorganic compounds...
January 18, 2017: Analyst
https://www.readbyqxmd.com/read/28090477/the-economic-cost-of-implementing-maternal-and-neonatal-death-review-in-a-district-of-bangladesh
#11
Animesh Biswas, Abdul Halim, Fazlur Rahman, Charli Eriksson, Koustuv Dalal
INTRODUCTION: Maternal and neonatal death review (MNDR) introduced in Bangladesh and initially piloted in a district during 2010. MNDR is able to capture each of the maternal, neonatal deaths and stillbirths from the community and government facilities (hospitals). This study aimed to estimate the cost required to implement MNDR in a district of Bangladesh during 2010-2012. MATERIALS AND METHODS: MNDR was implemented in Thakurgaon district in 2010 and later gradually extended until 2015...
December 9, 2016: Journal of Public Health Research
https://www.readbyqxmd.com/read/28077751/performance-of-health-workers-using-an-electronic-algorithm-for-the-management-of-childhood-illness-in-tanzania-a-pilot-implementation-study
#12
Clotilde Rambaud-Althaus, Amani Shao, Josephine Samaka, Ndeniria Swai, Seneca Perri, Judith Kahama-Maro, Marc Mitchell, Valérie D'Acremont, Blaise Genton
In low-resource settings, where qualified health workers (HWs) are scarce and childhood mortality high, rational antimicrobial prescription for childhood illnesses is a challenge. To assess whether smartphones running guidelines, as compared with paper support, improve consultation process and rational use of medicines for children, a pilot cluster-randomized controlled study was conducted in Tanzania. Nine primary health-care facilities (HFs) were randomized into three arms: 1) paper algorithm, 2) electronic algorithm on a smartphone, and 3) control...
January 11, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28069690/development-of-solid-phase-extraction-and-hplc-method-for-simultaneous-estimation-of-ilaprazole-and-glimepiride-in-rat-plasma-application-to-pharmacokinetic-studies
#13
A P Dewani, A S Tripathi, P G Shelke, R L Bakal, D S Mohale, A V Chandewar
A novel, simple and mass spectrometry (MS) compatible high-performance liquid chromatography (HPLC) method is reported for the simultaneous estimation of ilaprazole (ILA) and glimepiride (GLM) in rat plasma. The bio-analytical procedure involves extraction of ILA, GLM and internal standard (IS) from rat plasma with a solid-phase extraction (SPE) process. The chromatographic analysis was performed on Waters-600 system using an isocratic mobile phase comprising methanol:water (80:20 % v/v) with pH of water modified to three using formic acid at a flow rate of 1...
January 8, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28047662/su-f-t-537-prone-breast-accelerated-partial-breast-irradiation-using-non-coplanar-volumetric-arc-therapy
#14
G Beninati, J Barbiere, L Godfrey, A Ndlovu
PURPOSE: To demonstrate that Volumetric Modulated Arc Therapy (VMAT) can be an alternative technique to Brachytherapy Accelerated Partial Breast Irradiation (APBI) for treating large breasted women. The non-coplanar VMAT technique uses a commercially available couch and a small number of angles. This technique with the patient in the prone position can reduce high skin and critical structure doses in large breasted women, which are usually associated with Brachytherapy APBI. METHODS: Philips Pinnacle treatment planning system with Smart Arc was used to plan a left sided laterally located excision cavity on a standard prone breast patient setup...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046601/su-f-t-232-monthly-quality-assurance-in-external-beam-radiation-therapy-using-a-single-system
#15
K Ding, T Ji, I Iordachita, E Velarde, J Hyatt, J Wong
PURPOSE: Monthly quality assurance (QA) is time consuming for external beam radiation therapy, taking as long as 6-8 hours for each machine. It is due to the use and setup of multiple devices for different QA procedures. We have developed a single system with rotational capability for the measurement of both optical light and radiation which significantly reduces the time spent on Monthly QA. METHODS: A single system using mirrors, a phosphor screen and a CCD camera is housed on a cylindrical motor so that it can rotate 360 degrees...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045979/intensive-patient-education-improves-glycaemic-control-in-diabetes-compared-to-conventional-education-a-randomised-controlled-trial-in-a-nigerian-tertiary-care-hospital
#16
Okon Essien, Akaninyene Otu, Victor Umoh, Ofem Enang, Joseph Paul Hicks, John Walley
BACKGROUND: Diabetes is now a global epidemic, but most cases are now in low- and middle-income countries. Diabetes self-management education (DSME) is key to enabling patients to manage their chronic condition and can reduce the occurrence of costly and devastating complications. However, there is limited evidence on the effectiveness of different DSME programmes in resource limited settings. METHODS: We conducted an unblinded, parallel-group, individually-randomised controlled trial at the University of Calabar Teaching Hospital (Nigeria) to evaluate whether an intensive and systematic DSME programme, using structured guidelines, improved glycaemic control compared to the existing ad hoc patient education (clinical practice was unchanged)...
2017: PloS One
https://www.readbyqxmd.com/read/28040586/simultaneous-arsenic-and-fluoride-removal-from-synthetic-and-real-groundwater-by-electrocoagulation-process-parametric-and-cost-evaluation
#17
Lokendra Singh Thakur, Prasenjit Mondal
Co-existence of arsenic and fluoride in groundwater has raised severe health issues to living being. Thus, the present research has been conducted for simultaneous removal of arsenic and fluoride from synthetic groundwater by using electrocoagulation process with aluminum electrode. Effects of initial pH, current density, run time, inter electrode distance and NaCl concentration over percentage removal of arsenic and fluoride as well as operating cost have been studied. The optimum experimental conditions are found to be initial pH: 7, current density: 10 A/m(2), run time: 95 min, inter electrode distance: 1 cm, NaCl concentration: 0...
April 1, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28007583/towards-a-privacy-preserving-cohort-discovery-framework-for-clinical-research-networks
#18
Jiawei Yuan, Bradley Malin, François Modave, Yi Guo, William R Hogan, Elizabeth Shenkman, Jiang Bian
BACKGROUND: The last few years have witnessed an increasing number of clinical research networks (CRNs) focused on building large collections of data from electronic health records (EHRs), claims, and patient-reported outcomes (PROs). Many of these CRNs provide a service for the discovery of research cohorts with various health conditions, which is especially useful for rare diseases. Supporting patient privacy can enhance the scalability and efficiency of such processes; however, current practice mainly relies on policy, such as guidelines defined in the Health Insurance Portability and Accountability Act (HIPAA), which are insufficient for CRNs (e...
December 19, 2016: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28007331/combination-therapy-of-rosuvastatin-and-ezetimibe-in-patients-with-high-cardiovascular-risk
#19
Young-June Yang, Sang-Hak Lee, Byung Soo Kim, Yun-Kyeong Cho, Hyun-Jai Cho, Kyoung Im Cho, Seok-Yeon Kim, Jae Kean Ryu, Jin-Man Cho, Joong-Il Park, Jong-Seon Park, Chang Gyu Park, Woo Jung Chun, Myung-A Kim, Dong-Kyu Jin, Namho Lee, Byung Jin Kim, Kwang Kon Koh, Jon Suh, Seung-Hwan Lee, Byoung-Kwon Lee, Seung-Jin Oh, Han-Young Jin, Youngkeun Ahn, Sang-Gon Lee, Jang-Ho Bae, Woo Jung Park, Sang-Chol Lee, Han Cheol Lee, Jaewon Lee, Cheolwon Park, Backhwan Lee, Yangsoo Jang
PURPOSE: The aim of this study was to evaluate the efficacy and tolerability of rosuvastatin/ezetimibe combination therapy in Korean patients with high cardiovascular risk. METHODS: This was a 12-week, randomized, double-blind, placebo-controlled, multicenter study. A total of 337 patients were screened. After a 4-week run-in period, 245 of these patients with high or moderately high risk as defined by the National Cholesterol Education Program Adult Treatment Panel III guidelines were randomly assigned...
January 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28006653/evaluation-of-molecular-typing-of-foodborne-pathogens-in-european-reference-laboratories-from-2012-to-2013
#20
Susanne Schjørring, Taina Niskanen, Mia Torpdahl, Jonas T Björkman, Eva Møller Nielsen
In 2012, the European Centre for Disease Prevention and Control (ECDC) initiated external quality assessment (EQA) schemes for molecular typing including the National Public Health Reference Laboratories in Europe. The overall aim for these EQA schemes was to enhance the European surveillance of food-borne pathogens by evaluating and improving the quality and comparability of molecular typing. The EQAs were organised by Statens Serum Institut (SSI) and included Salmonella enterica subsp. enterica, verocytotoxin-producing Escherichia coli (VTEC) and Listeria monocytogenes...
December 15, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
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