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https://www.readbyqxmd.com/read/28239974/simultaneous-monitoring-of-monoamines-amino-acids-nucleotides-and-neuropeptides-by-liquid-chromatography-tandem-mass-spectrometry-and-its-application-to-neurosecretion-in-bovine-chromaffin-cells
#1
Aneta Wojnicz, José Avendaño-Ortiz, Ricardo de Pascual, Lucía Ruiz-Pascual, Antonio G García, Ana Ruiz-Nuño
The primary functions of adrenal medullary chromaffin cells are the synthesis and storage in their chromaffin vesicles of the catecholamines noradrenaline (NA) and adrenaline (AD), and their subsequent release into the bloodstream by Ca(2+) -dependent exocytosis under conditions of fear or stress (fight or flight response). Several monoamines, nucleotides and opiates, such as leucine-enkephalin (LENK) and methionine-enkephalin (MENK), are also co-stored and co-released with the catecholamines. However, other neurotransmitters have not been studied in depth...
August 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28239598/general-self-efficacy-and-diabetes-management-self-efficacy-of-diabetic-patients-referred-to-diabetes-clinic-of-aq-qala-north-of-iran
#2
Hajar Dehghan, Abdurrahman Charkazi, Ghorban Mohammad Kouchaki, Bagher Pahlevan Zadeh, Bibi Azizieh Dehghan, Mohammad Matlabi, Morteza Mansourian, Mostafa Qorbani, Omid Safari, Tahereh Pashaei, Babak Rastegari Mehr
BACKGROUND: Self-efficacy is one of the factors involved in successful self-care of diabetic patients. The aim of this study was to evaluate general self-efficacy and diabetes management self-efficacy and to determine their association with glycemic control in diabetic individuals, referred to the diabetes clinic of Aq Qala city, North of Iran. METHODS: In this cross-sectional study, 251 type 2 diabetes mellitus patients were enrolled using census method. Data collection tools consisted of Sherer General Self-Efficacy Scale (SGSES) and Diabetes Management Self-Efficacy Scale (DMSES) with minor demographic adjustments and hemoglobin A1C test...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28239315/single-fecal-microbiota-transplantation-failed-to-change-intestinal-microbiota-and-had-limited-effectiveness-against-ulcerative-colitis-in-japanese-patients
#3
Shinta Mizuno, Kosaku Nanki, Katsuyoshi Matsuoka, Keiichiro Saigusa, Keiko Ono, Mari Arai, Shinya Sugimoto, Hiroki Kiyohara, Moeko Nakashima, Kozue Takeshita, Makoto Naganuma, Wataru Suda, Masahira Hattori, Takanori Kanai
BACKGROUND/AIMS: Recent developments in analytical techniques including next-generation sequencing have clarified the correlation between intestinal microbiota and inflammatory bowel disease. Fecal microbiota transplantation (FMT) for patients with ulcerative colitis (UC) is proposed as a potential approach to resolving their dysbiosis; however, its safety and efficacy have not been confirmed. This single-arm, open-label, non-randomized study aimed to evaluate the safety and efficacy of FMT for Japanese patients with UC as the first registered clinical trial in Japan...
January 2017: Intestinal Research
https://www.readbyqxmd.com/read/28237548/application-of-packed-fiber-solid-phase-extraction-coupled-with-gc-ms-for-the-determination-of-short-chain-fatty-acids-in-children-s-urine
#4
Renshan Zhao, Lanling Chu, Yu Wang, Yuan Song, Ping Liu, Chen Li, Jingjing Huang, Xuejun Kang
BACKGROUND: Autism spectrum disorder (ASD) is a complex disorder involving interactions between genetic, epigenetic and environmental factors. Gastrointestinal (GI) disorders are prevalent in the cohort of children with ASD and they have been recognized as a comorbid condition recently. It is of value to monitor GI issues in individuals, and to help further characterize factors that may contribute to GI disorders (in individuals with and without ASD). Due to the biological relevance of short-chain fatty acids (SCFAs) to GI disorders, it is important to develop a rapid and selective detection method capable of identifying and quantifying SCFAs in complex biological samples...
February 22, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28237194/three-sets-of-case-studies-suggest-logic-and-consistency-challenges-with-value-frameworks
#5
Joshua T Cohen, Jordan E Anderson, Peter J Neumann
OBJECTIVE: To assess the logic and consistency of three prominent value frameworks. METHODS: We reviewed the value frameworks from three organizations: the Memorial Sloan Kettering Cancer Center (DrugAbacus), the American Society of Clinical Oncologists, and the Institute for Clinical and Economic Review. For each framework, we developed case studies to explore the degree to which the frameworks have face validity in the sense that they are consistent with four important principles: value should be proportional to a therapy's benefit; components of value should matter to framework users (patients and payers); attribute weights should reflect user preferences; and value estimates used to inform therapy prices should reflect per-person benefit...
February 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28237091/development-of-an-indirect-competitive-immunochromatographic-strip-test-for-rapid-detection-and-determination-of-anticancer-drug-harringtonine
#6
Seiichi Sakamoto, Gorawit Yusakul, Poomraphie Nuntawong, Tharita Kitisripanya, Waraporn Putalun, Tomofumi Miyamoto, Hiroyuki Tanaka, Satoshi Morimoto
Harringtonine (HT) is a natural compound, which is mainly produced by the genus Cephalotaxus, and has been clinically utilized in China for the treatment of acute leukemia and lymphoma. However, the amounts of HT in the Cephalotaxus species are very small; therefore, plant tissue cultures have been focused upon to enhance HT production. Qualitative/quantitative methods for HT detection are required to screen superior cell lines. We developed a one-step indirect competitive immunochromatographic assay (ICA) using colloidal gold nanoparticles conjugated with highly specific monoclonal antibodies against HT (MAb 1D2) for simple, rapid, and sensitive detection of HT in plant samples...
January 22, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28236783/identifying-sub-categories-of-social-fears-using-an-alternative-factor-analytic-structure-of-the-social-phobia-and-anxiety-inventory
#7
Georgia Panayiotou, Michalis P Michaelides, Marios Theodorou, Klavdia Neophytou
AIMS: This study evaluates an alternative factor structure of the Social Phobia and Anxiety Inventory (Turner et al., 1989), a widely used measure of social anxiety. Existing models ignore variance due to the different social contexts where social fears are expressed. METHOD: Taking a different approach to scoring than previous studies, this investigation proposes a new model, which, in addition to 4-5 symptom dimensions, is able to capture the situations (strangers, authority figures, members of the opposite sex and people in general) that are of concern to the examinee...
February 20, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28236658/targeted-dose-enhancement-in-radiotherapy-for-breast-cancer-using-gold-nanoparticles-part-2-a-treatment-planning-study
#8
Lidia Strigari, Veronica Ferrero, Giovanni Visonà, Piergiorgio Cerello, Andrea Attili, Sonja Visentin
PURPOSE: In recent years there has been growing interest in the use of gold nanoparticles (GNPs) combined with radiotherapy to improve tumor control. However, the complex interplay between GNP uptake and dose distribution in realistic clinical treatment are still somewhat unknown. METHODS: The effects of different concentrations of 2 nm diameter GNP, ranging from 0 to 5x10(5) nanoparticles per tumoral cell, were theoretically investigated. A parametrization of the GNP distribution outside the target was carried out using a Gaussian standard deviation σ, from a zero value, relative to a selective concentration of GNPs inside the tumor volume alone, to 50 mm, when GNPs are spatially distributed also in the healthy tissues surrounding the tumor...
February 25, 2017: Medical Physics
https://www.readbyqxmd.com/read/28236655/targeted-dose-enhancement-in-radiotherapy-for-breast-cancer-using-gold-nanoparticles-part-1-a-radiobiological-model-study
#9
Veronica Ferrero, Giovanni Visonà, Federico Dalmasso, Andrea Gobbato, Piergiorgio Cerello, Andrea Attili, Lidia Strigari, Sonja Visentin
PURPOSE: Gold nanoparticles (GNPs) are being proposed in combination with radiotherapy to improve tumor control. However, the exact mechanisms underlying GNP radiosensitization are yet to be understood, thus, we present a new approach to estimate the nanoparticle-driven increase in radiosensitivity. METHODS: A stochastic radiobiological model derived from the Local Effect Model (LEM) was coupled with Monte Carlo simulations performed using to estimate the increase in radiosensitivity due to the local dose deposited by secondary electrons produced from the interaction between the photons and GNPs at a nanometric level...
February 25, 2017: Medical Physics
https://www.readbyqxmd.com/read/28236626/selecting-multi-rule-quality-control-procedures-based-on-patient-risk
#10
Hassan Bayat
BACKGROUND: Traditionally, statistical quality control (SQC) planning is aimed at preventing the error rate from exceeding a pre-defined acceptable rate (Westgard JO. Basic QC Practices, 4th ed. Westgard QC, 2016). A pivotal characteristic for planning a QC procedure with the traditional approach is the probability of rejecting an analytical run that contains critical size errors (Pedc). Multi-rule QC procedures, with fully documented power curves, are important tools for SQC. In addition, it has been recommended (Parvin CA, Gronowski AM...
February 25, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28236361/rural-habitat-as-risk-factor-for-hepatitis-e-virus-seroconversion-in-hiv-infected-patients-a-prospective-longitudinal-study
#11
A Rivero-Juarez, F Cuenca-Lopez, A Martinez-Peinado, A Camacho, L M Real, M Frias, A Gordon, S Cantisán, J Torre-Cisneros, J A Pineda, A Rivero
Our objective was to determine the incidence and clinical manifestations of acute hepatitis E virus (HEV) in HIV-infected patients. A prospective longitudinal study including HIV-infected HEV-seronegative patients was conducted; HEV seroconversion (to IgG and/or IgM) was the main outcome variable. All patients were tested for HEV antibodies every 3-6 months. For patients who developed HEV seroconversion, a data collection protocol was followed to identify associated clinical manifestations and analytical alterations...
February 25, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28236327/analytical-evaluation-of-the-adams-%C3%A2-a1c-ha8180t-analyzer-for-the-measurement-of-hba1c
#12
Eloísa Urrechaga
BACKGROUND: The ADAMS(™) A1c HA-8180T (ARKRAY, Inc., Kyoto, Japan) is a high pressure liquid chromatography system designed for separation and quantitation of HbA1c, while detecting hemoglobin (Hb) variants and HbA2 , with an analysis time of just 3.5 min. The aim was to evaluate the analytical performance of this analyzer for routine HbA1c quantitation. METHODS: Trueness, imprecision, carry over, linearity, the effect of anemia and correlation with ADAMS(™) A1c HA-8180V (in Variant mode) were assessed according to guidelines of the Clinical and Laboratory Standards Institute (CLSI) and manufacturer...
February 25, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28236178/does-participation-in-health-information-exchange-improve-hospital-efficiency
#13
Daniel M Walker
The federal government allocated nearly $30 billion to spur the development of information technology infrastructure capable of supporting the exchange of interoperable clinical data, leading to growth in hospital participation in health information exchange (HIE) networks. HIEs have the potential to improve care coordination across healthcare providers, leading ultimately to increased productivity of health services for hospitals. However, the impact of HIE participation on hospital efficiency remains unclear...
February 24, 2017: Health Care Management Science
https://www.readbyqxmd.com/read/28235782/development-of-a-multiplexed-lc-mrm-ms-method-for-evaluation-of-salivary-proteins-as-oral-cancer-biomarkers
#14
Yi-Ting Chen, Hsiao-Wei Chen, Chun-Feng Wu, Lichieh Julie Chu, Wei-Fang Chiang, Chih-Ching Wu, Jau-Song Yu, Cheng-Han Tsai, Kung-Hao Liang, Yu-Sun Chang, Maureen Wu, Wei-Ting Ou Yang
Multiple (selected) reaction monitoring (MRM/SRM) of peptides is a growing technology for target protein quantification because it is more robust, precise, accurate, high-throughput, and multiplex-capable than antibody-based techniques. The technique has been applied clinically to the large-scale quantification of multiple target proteins in different types of fluids. However, previous MRM-based studies have placed less focus on sample-preparation workflow and analytical performance in the precise quantification of proteins in saliva, a non-invasively sampled body fluid...
February 24, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28235428/validation-of-a-hand-held-point-of-care-device-for-lactate-in-adult-and-pediatric-patients-using-traditional-and-locally-smoothed-median-and-maximum-absolute-difference-curves
#15
Jessica Marie Colon-Franco, Stanley F Lo, Sergey S Tarima, David Gourlay, Amy L Drendel, E Brook Lerner
BACKGROUND: Lactate is commonly used in septic patients and is a viable biomarker for trauma patients. Its pre-hospital use could assist triaging and managing patients with these conditions. METHODS: We evaluated the analytical performance of the point-of-care (POC) StatStrip Xpress Lactate Meter (Nova Biomedical) and compared it to the ABL 800 (Radiometer). We measured lactate in 250 adult and 250 pediatric whole blood samples in 2 laboratories. The performance of the POC meter was assessed by traditional linear regression and Bland-Altman plots, and locally-smoothed (LS) median absolute difference and maximum absolute difference (MAD and MaxAD) curves...
February 21, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28231289/rehr-an-r-package-for-manipulating-and-analysing-electronic-health-record-data
#16
David A Springate, Rosa Parisi, Ivan Olier, David Reeves, Evangelos Kontopantelis
Research with structured Electronic Health Records (EHRs) is expanding as data becomes more accessible; analytic methods advance; and the scientific validity of such studies is increasingly accepted. However, data science methodology to enable the rapid searching/extraction, cleaning and analysis of these large, often complex, datasets is less well developed. In addition, commonly used software is inadequate, resulting in bottlenecks in research workflows and in obstacles to increased transparency and reproducibility of the research...
2017: PloS One
https://www.readbyqxmd.com/read/28231060/improving-quality-in-the-preanalytical-phase-through-innovation-on-behalf-of-the-european-federation-for-clinical-chemistry-and-laboratory-medicine-eflm-working-group-for-preanalytical-phase-wg-pre
#17
Giuseppe Lippi, Geoffrey S Baird, Giuseppe Banfi, Karin Bölenius, Janne Cadamuro, Stephen Church, Michael P Cornes, Anna Dacey, Antoine Guillon, Georg Hoffmann, Mads Nybo, Lakdasa Devananda Premawardhana, María Salinas, Sverre Sandberg, Robbert Slingerland, Ana Stankovic, Sylte Marit Sverresdotter, Pieter Vermeersch, Ana-Maria Simundic
It is now undeniable that laboratory testing is vital for the diagnosis, prognostication and therapeutic monitoring of human disease. Despite the many advances made for achieving a high degree of quality and safety in the analytical part of diagnostic testing, many hurdles in the total testing process remain, especially in the preanalytical phase ranging from test ordering to obtaining and managing the biological specimens. The Working Group for the Preanalytical Phase (WG-PRE) of the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) has planned many activities aimed at mitigating the vulnerability of the preanalytical phase, including the organization of three European meetings in the past 7 years...
February 23, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28231032/effects-of-live-trapping-and-isoflurane-anesthesia-on-free-ranging-american-martens-martes-americana
#18
Maria C Spriggs, Lisa I Muller, Paul Keenlance, Robert L Sanders, Jill C Witt, Debra L Miller
Seventy-two free-ranging American martens ( Martes americana ) in Michigan were immobilized using isoflurane from 2011 to 2015. In total, 129 anesthetic procedures were performed with no mortalities. Hypothermia and hyperthermia were the most common anesthetic complications, and the mean rectal temperatures were significantly higher during summer than in winter. Dental abnormalities were common; the majority of abnormal findings were broken or discolored teeth attributed to previous dental trauma and were not trap-induced...
February 23, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28230712/updating-evidence-for-using-hypothermia-in-pediatric-severe-traumatic-brain-injury-conventional-and-bayesian-meta-analytic-perspectives
#19
Robert C Tasker, Frederick W Vonberg, Elizabeth D Ulano, Alireza Akhondi-Asl
OBJECTIVE: To evaluate clinical trials of hypothermia management on outcome in pediatric patients with severe traumatic brain injury using conventional and Bayesian meta-analyses. DATA SOURCES: Screening of PubMed and other databases to identify randomized controlled trials of hypothermia for pediatric severe traumatic brain injury published before September 2016. STUDY SELECTION: Four investigators assessed and reviewed randomized controlled trial data...
February 20, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28229612/preliminary-results-of-a-screening-program-for-anal-cancer-and-its-precursors-for-hiv-infected-men-who-have-sex-with-men-in-vigo-spain
#20
Mauricio Iribarren Díaz, Antonio Ocampo Hermida, Joaquín González-Carreró Fojón, Rebeca Longueira Suárez, Alberto Rivera Gallego, Enrique Casal Núñez, Antón Ocampo Álvarez, Edward Cachay
BACKGROUND: Men who have sex with men (MSM) infected with human immunodeficiency virus (HIV) have the highest risk of developing anal cancer (AC). The objective of this study was to describe our screening implementation program in this population, and report the prevalence of human papillomavirus (HPV) anal infection, and cytological and histological findings in a Spanish medium-size community (Vigo, Spain). METHOD: Prospective cohort analysis of 240 HIV-infected MSM...
February 23, 2017: Revista Española de Enfermedades Digestivas
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