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https://www.readbyqxmd.com/read/28820934/supramolecular-sensors-for-opiates-and-their-metabolites
#1
Elena G Shcherbakova, Ben Zhang, Samer Gozem, Tsuyoshi Minami, Peter Y Zavalij, Mariia Pushina, Lyle Isaacs, Pavel Anzenbacher
The present work develops a sensing approach for opiates using acyclic cucurbituril (aCBs) sensors comprising four glycouril units terminated on both ends with naphthalene fluorophore walls. The connectivity between the glycourils and the naphthalene rings largely defines the opening size of the cucurbituril cavity and its diameter. The large hydrophobic binding cavity is flexible and is able to adapt to guests of various size and topology. The recognition event between the aCBs and guests results in modification of the fluorescence of the terminal walls, a fluorescence response that can be used to sense the drugs of abuse morphine, heroin and oxycodone as well as their metabolites...
August 18, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28820691/field-trial-of-the-carestart-biosensor-analyzer-for-the-determination-of-glucose-6-phosphate-dehydrogenase-activity-in-haiti
#2
Thomas A Weppelmann, Michael E von Fricken, Tara D Wilfong, Elisa Aguenza, Taina T Philippe, Bernard A Okech
Throughout many developing and tropical countries around the world, malaria remains a significant threat to human health. One barrier to malaria elimination is the ability to safely administer primaquine chemotherapy for the radical cure of malaria infections in populations with a high prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency. In the current study, a field trial of the world's first quantitative, point-of-care assay for measuring G6PD activity was conducted in Haiti. The performance of the CareStart Biosensor Analyzer was compared with the gold standard spectrophotometric assay and genotyping of the G6PD allele in schoolchildren (N = 343) from the Ouest Department of Haiti...
August 14, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820621/-doctors-killed-my-baby-argumentative-patterns-in-medical-disputes-in-china
#3
Dawei Pan
The recent surge in medical disputes requires that more attention be paid to the voices of laypeople. This article explores the argumentative nature of the public discourse of the reported "malpractice mobs" that strive to convince members of the public (in the place of health or legal experts) that they have been victims of medical errors and injustice. This case-based qualitative empirical study uses a pragma-dialectical approach to suggest a prototypical pattern of such public appeals that contains a basic argumentative pattern and various types of extensions...
August 18, 2017: Health Communication
https://www.readbyqxmd.com/read/28819835/efficacy-and-safety-of-linagliptin-in-2681-asian-patients-stratified-by-age-obesity-and-renal-function-a-pooled-analysis-of-randomized-clinical-trials
#4
Guang Ning, Tushar Bandgar, Uwe Hehnke, Jisoo Lee, Juliana C N Chan
INTRODUCTION: Asian patients with type 2 diabetes (T2D) are younger, leaner, and more likely to develop renal dysfunction than White populations. In this multiethnic analysis of data from phase 3 trials, we investigated the efficacy and safety of the dipeptidyl peptidase-4 inhibitor linagliptin in Asians stratified by these subphenotypes. METHODS: Data from randomized, double-blind, placebo-controlled trials evaluating linagliptin (as monotherapy, add-on therapy to metformin ± sulfonylurea, combined with pioglitazone or added to insulin) were pooled with efficacy data from 11 randomized trials of at least 24 weeks and safety data from 15 trials of various durations...
August 17, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28818392/how-predictable-are-human-stratum-corneum-lipid-water-partition-coefficients-assessment-and-useful-correlations-for-dermal-absorption
#5
Johannes M Nitsche, Gerald B Kasting
Partition coefficients between human stratum corneum lipids and water (K(sclip/w)) are collected or deduced from a variety of sources in a manner that approximately doubles the available data compared to the current state-of-the-art model [Hansen et al., Adv Drug Deliv Rev 65:252-264 (2013)]. An additional datum for water itself in porcine SC that considerably extends the molecular size and lipophilicity range of the dataset is considered. The data are analyzed in terms of an extended linear free energy relationship involving octanol/water partition coefficients, Abraham solvation parameters and a secondary, power law molecular weight dependence...
August 14, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28816851/clinical-practice-guideline-safe-medication-use-in-the-icu
#6
Sandra L Kane-Gill, Joseph F Dasta, Mitchell S Buckley, Sandeep Devabhakthuni, Michael Liu, Henry Cohen, Elisabeth L George, Anne S Pohlman, Swati Agarwal, Elizabeth A Henneman, Sharon M Bejian, Sean M Berenholtz, Jodie L Pepin, Mathew C Scanlon, Brian S Smith
OBJECTIVE: To provide ICU clinicians with evidence-based guidance on safe medication use practices for the critically ill. DATA SOURCES: PubMed, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, CINAHL, Scopus, and ISI Web of Science for relevant material to December 2015. STUDY SELECTION: Based on three key components: 1) environment and patients, 2) the medication use process, and 3) the patient safety surveillance system...
September 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28813214/cognitive-function-in-a-randomized-trial-of-evolocumab
#7
Robert P Giugliano, François Mach, Kenton Zavitz, Christopher Kurtz, Kyungah Im, Estella Kanevsky, Jingjing Schneider, Huei Wang, Anthony Keech, Terje R Pedersen, Marc S Sabatine, Peter S Sever, Jennifer G Robinson, Narimon Honarpour, Scott M Wasserman, Brian R Ott
Background Findings from clinical trials of proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors have led to concern that these drugs or the low levels of low-density lipoprotein (LDL) cholesterol that result from their use are associated with cognitive deficits. Methods In a subgroup of patients from a randomized, placebo-controlled trial of evolocumab added to statin therapy, we prospectively assessed cognitive function using the Cambridge Neuropsychological Test Automated Battery. The primary end point was the score on the spatial working memory strategy index of executive function (scores range from 4 to 28, with lower scores indicating a more efficient use of strategy and planning)...
August 17, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28811565/iss-pc-identifying-splicing-sites-via-physical-chemical-properties-using-deep-sparse-auto-encoder
#8
Zhao-Chun Xu, Peng Wang, Wang-Ren Qiu, Xuan Xiao
Gene splicing is one of the most significant biological processes in eukaryotic gene expression, such as RNA splicing, which can cause a pre-mRNA to produce one or more mature messenger RNAs containing the coded information with multiple biological functions. Thus, identifying splicing sites in DNA/RNA sequences is significant for both the bio-medical research and the discovery of new drugs. However, it is expensive and time consuming based only on experimental technique, so new computational methods are needed...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808959/deaths-from-medicines-a-systematic-analysis-of-coroners-reports-to-prevent-future-deaths
#9
Robin E Ferner, Craig Easton, Anthony R Cox
INTRODUCTION: Since legislation in 2009, coroners in England and Wales must make reports in cases where they believe it is possible to prevent future deaths. We categorised the reports and examined whether they could reveal preventable medication errors or novel adverse drug reactions. METHODS: We examined 500 coroners' reports by pre-defined criteria to identify those in which medicines played a part, and to collect information on coroners' concerns. RESULTS: We identified 99 reports (100 deaths) in which medicines or a part of the medication process or both were mentioned...
August 14, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28808387/new-apigenin-glycoside-polyphenolic-constituents-anti-inflammatory-and-hepatoprotective-activities-of-gaillardia-grandiflora-and-gaillardia-pulchella-aerial-parts
#10
Fatma A Moharram, Rabab Abd El Moneim El Dib, Mohamed S Marzouk, Siham M El-Shenawy, Haitham A Ibrahim
BACKGROUND: Gaillardia grandiflora Hort. ex Van Houte and Gaillardia pulchella Foug are flowering plants widely cultivated in Egypt for their ornamental value. Previous reports demonstrated that sesquiterpene derivatives represent the major compounds in both species. Moreover, only few flavones were identified from genus Gaillardia and few studies on the cytotoxicity of G. pulchella were found. AIM OF THE STUDY: Investigation of the phenolic constituents of the aerial parts of both species and evaluation of their anti-inflammatory and hepatoprotective activities...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28806470/efficacy-and-safety-of-sugammadex-versus-neostigmine-in-reversing-neuromuscular-blockade-in-adults
#11
REVIEW
Ana-Marija Hristovska, Patricia Duch, Mikkel Allingstrup, Arash Afshari
BACKGROUND: Acetylcholinesterase inhibitors, such as neostigmine, have traditionally been used for reversal of non-depolarizing neuromuscular blocking agents. However, these drugs have significant limitations, such as indirect mechanisms of reversal, limited and unpredictable efficacy, and undesirable autonomic responses. Sugammadex is a selective relaxant-binding agent specifically developed for rapid reversal of non-depolarizing neuromuscular blockade induced by rocuronium. Its potential clinical benefits include fast and predictable reversal of any degree of block, increased patient safety, reduced incidence of residual block on recovery, and more efficient use of healthcare resources...
August 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28801923/sensitive-liquid-chromatography-tandem-mass-spectrometry-method-for-the-determination-of-two-novel-highly-lipophilic-anti-cancer-drug-candidates-in-rat-plasma-and-tissues
#12
Shirin Hooshfar, Michael R Linzey, Daqing Wu, Lajos Gera, Kenza Mamouni, Xin Li, Yanhua Chen, Yang Yang, Oluwasegun Olorunyolemi, Michael G Bartlett
A simple and sensitive liquid chromatography/electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) method was developed and validated for determination of two highly lipophilic anti-cancer drug candidates, LG1980, and GH501, in rat plasma and tissues (liver, kidney and femur bones). LG1980 and GH501 were extracted from rat plasma and tissue homogenates using liquid-liquid extraction. The method provided a linear range of 1.0-200.0 ng/mL for GH501 in plasma and LG1980 in plasma and liver. For both analytes in other tissue homogenates the linear range was 2...
August 12, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28799408/assessment-of-apixaban-prescribing-patterns-for-nonvalvular-atrial-fibrillation-in-hospitalized-patients
#13
Caitlin M Gibson, Carmen B Smith, Sondra Davis, Michael J Scalese
BACKGROUND: Apixaban is a direct oral anticoagulant (DOAC) for the prevention of stroke and systemic embolism in patients with nonvalvular atrial fibrillation (NVAF). Other DOACs require renal dose adjustments based solely on creatinine clearance. Apixaban differs in that its dose adjustments are more complex, potentially leading to prescribing errors. OBJECTIVE: To determine if adherence to Food and Drug Administration (FDA)-approved dosing for apixaban is maintained in hospitalized patients with NVAF...
August 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28796560/facial-emotion-decoding-in-patients-with-parkinson-s-disease
#14
Marco De Risi, Giancarlo Di Gennaro, Angelo Picardi, Sara Casciato, Liliana G Grammaldo, Alfredo D'Aniello, Deborah Lanni, Stefano Meletti, Nicola Modugno
PURPOSE: In line with the growing attention on non-motor symptoms and disturbance of affective and emotional processing in Parkinson's disease, we aimed to study different aspects of facial emotion expression evaluation in a group of PD without cognitive decline in treatment with common antiparkinsonian drugs, matched for sex, age, and education with healthy subjects. MATERIALS AND METHODS: The study was conducted on 30 patients (13 male; mean age: 63.3±6.7; mean age of disease onset: 56...
August 10, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28794985/vertical-gaze-palsy-due-to-medication-error
#15
Shishir Rao, Meghan Harper-Shankie, Rajkumar Agarwal
We present a teenage boy with recent onset of seizures, who was erroneously treated with a large dose of an antiseizure medication as a result of drug mix-up. The ensuing drug toxicity caused vertical gaze palsy, an unusual manifestation related to overdose of the agent. Timely recognition of the error and discontinuation of the drug resulted in complete recovery to baseline.
2017: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/28794047/no-substantial-evidence-for-sexual-transmission-of-minority-hiv-drug-resistance-mutations-in-men-who-have-sex-with-men
#16
Antoine Chaillon, Masato Nakazawa, Joel O Wertheim, Susan J Little, Davey M Smith, Sanjay R Mehta, Sara Gianella
During primary HIV-infection, the presence of minority drug resistant mutations (DRM) may be a consequence of sexual transmission, de novo mutations or technical errors. Baseline blood samples were collected from 24 HIV-infected antiretroviral-naive, genetically- and epidemiologically- linked source and recipient partners, shortly after the recipient's estimated date of infection. An additional 32 longitudinal samples were available from 11 recipients. Deep-sequencing of HIV reverse transcriptase (RT) was performed (Roche/454) and screened for nucleoside and non-nucleoside RT inhibitor DRM...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28792525/a-data-mining-approach-for-identifying-pathway-gene-biomarkers-for-predicting-clinical-outcome-a-case-study-of-erlotinib-and-sorafenib
#17
David G Covell
A novel data mining procedure is proposed for identifying potential pathway-gene biomarkers from preclinical drug sensitivity data for predicting clinical responses to erlotinib or sorafenib. The analysis applies linear ridge regression modeling to generate a small (N~1000) set of baseline gene expressions that jointly yield quality predictions of preclinical drug sensitivity data and clinical responses. Standard clustering of the pathway-gene combinations from gene set enrichment analysis of this initial gene set, according to their shared appearance in molecular function pathways, yields a reduced (N~300) set of potential pathway-gene biomarkers...
2017: PloS One
https://www.readbyqxmd.com/read/28776479/parenteral-product-error-detection-before-and-after-implementation-of-intravenous-workflow-management-technology
#18
Kelly R Wright, Brian Dekarske, John S Clark, Bruce W Chaffee
Objective To assess the difference in pharmacy error detection rates when using a manual process compared to an intravenous workflow management system for the preparation of parenteral medications. Methods Baseline error data were collected by staff using a standard form over a four-day time period before intravenous workflow management system implementation and compared to 48 weeks of electronically collected data following implementation. The chi-square test was used for statistical comparisons. Results The ability to detect an error during the intravenous preparation process increased immediately following implementation, but this difference was not sustained and was not statistically different when the entire post-implementation time period was compared to the baseline sample...
January 1, 2017: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/28776179/frequency-and-nature-of-medication-errors-and-adverse-drug-events-in-mental-health-hospitals-a-systematic-review
#19
REVIEW
Ghadah H Alshehri, Richard N Keers, Darren M Ashcroft
INTRODUCTION: Little is known about the frequency and nature of medication errors (MEs) and adverse drug events (ADEs) that occur in mental health hospitals. OBJECTIVES: This systematic review aims to provide an up-to-date and critical appraisal of the epidemiology and nature of MEs and ADEs in this setting. METHOD: Ten electronic databases were searched, including MEDLINE, Embase, CINAHL, International Pharmaceutical Abstracts, PsycINFO, Scopus, British Nursing Index, ASSIA, Web of Science, and Cochrane Database of Systematic Reviews (1999 to October 2016)...
August 3, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28774438/individualized-drug-dosing-using-rbf-galerkin-method-case-of-anemia-management-in-chronic-kidney-disease
#20
Hossein Mirinejad, Adam E Gaweda, Michael E Brier, Jacek M Zurada, Tamer Inanc
BACKGROUND AND OBJECTIVE: Anemia is a common comorbidity in patients with chronic kidney disease (CKD) and is frequently associated with decreased physical component of quality of life, as well as adverse cardiovascular events. Current treatment methods for renal anemia are mostly population-based approaches treating individual patients with a one-size-fits-all model. However, FDA recommendations stipulate individualized anemia treatment with precise control of the hemoglobin concentration and minimal drug utilization...
September 2017: Computer Methods and Programs in Biomedicine
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