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https://www.readbyqxmd.com/read/29677464/improving-the-quality-of-preclinical-research-echocardiography-observations-training-and-guidelines-for-measurement
#1
Daniel G Donner, Helen Kiriazis, Xiao-Jun Du, Thomas H Marwick, Julie R McMullen
Informal training in preclinical research may be a contributor to the poor reproducibility of preclinical cardiology research and low rates of translation into clinical research and practice. Mouse echocardiography is a widely used technique to assess cardiac structure and function in drug intervention studies using disease models. The inter-observer variability (IOV) of clinical echocardiographic measurements has been shown to improve with formalized training, but preclinical echocardiography lacks similarly critical standardization of training...
April 20, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29677197/a-novel-statistical-method-for-assessing-effective-adherence-to-medication-and-calculating-optimal-drug-dosages
#2
Garrett Greene, Richard W Costello, Breda Cushen, Imran Sulaiman, Elaine Mac Hale, Ronan M Conroy, Frank Doyle
OBJECTIVE: We derive a novel model-based metric for effective adherence to medication, and validate it using data from the INhaler Compliance Assessment device (INCATM). This technique employs dose timing data to estimate the threshold drug concentration needed to maintain optimal health. METHODS: The parameters of the model are optimised against patient outcome data using maximum likelihood methods. The model is fitted and validated by secondary analysis of two independent datasets from two remote-monitoring studies of adherence, conducted through clinical research centres of 5 Irish hospitals...
2018: PloS One
https://www.readbyqxmd.com/read/29676947/intravenous-chemotherapy-compounding-errors-in-a-follow-up-pan-canadian-observational-study
#3
Rachel E Gilbert, Melissa C Kozak, Roxanne B Dobish, Venetia C Bourrier, Paul M Koke, Vishal Kukreti, Heather A Logan, Anthony C Easty, Patricia L Trbovich
PURPOSE: Intravenous (IV) compounding safety has garnered recent attention as a result of high-profile incidents, awareness efforts from the safety community, and increasingly stringent practice standards. New research with more-sensitive error detection techniques continues to reinforce that error rates with manual IV compounding are unacceptably high. In 2014, our team published an observational study that described three types of previously unrecognized and potentially catastrophic latent chemotherapy preparation errors in Canadian oncology pharmacies that would otherwise be undetectable...
April 20, 2018: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29676614/sourcebook-update-intestinal-smooth-muscle-contractility-and-autonomic-control
#4
Philip D Langton
This laboratory practical requires first-year students to anticipate the effects of drugs active at cholinergic and adrenergic receptors on gut motility in order to design experiments during an authentic inquiry exercise. Rather than specifying a strict sequence of drug additions that aim to provide ideal demonstrations of pharmacological and physiological antagonism, I have instead designed switches into the drugs provided and set students, working in small teams, the task of identifying the switched drugs, an inquiry activity...
June 1, 2018: Advances in Physiology Education
https://www.readbyqxmd.com/read/29674744/author-correction-genome-wide-analysis-of-multi-and-extensively-drug-resistant-mycobacterium-tuberculosis
#5
Francesc Coll, Jody Phelan, Grant A Hill-Cawthorne, Mridul B Nair, Kim Mallard, Shahjahan Ali, Abdallah M Abdallah, Saad Alghamdi, Mona Alsomali, Abdallah O Ahmed, Stephanie Portelli, Yaa Oppong, Adriana Alves, Theolis Barbosa Bessa, Susana Campino, Maxine Caws, Anirvan Chatterjee, Amelia C Crampin, Keertan Dheda, Nicholas Furnham, Judith R Glynn, Louis Grandjean, Dang Minh Ha, Rumina Hasan, Zahra Hasan, Martin L Hibberd, Moses Joloba, Edward C Jones-López, Tomoshige Matsumoto, Anabela Miranda, David J Moore, Nora Mocillo, Stefan Panaiotov, Julian Parkhill, Carlos Penha, João Perdigão, Isabel Portugal, Zineb Rchiad, Jaime Robledo, Patricia Sheen, Nashwa Talaat Shesha, Frik A Sirgel, Christophe Sola, Erivelton Oliveira Sousa, Elizabeth M Streicher, Paul Van Helden, Miguel Viveiros, Robert M Warren, Ruth McNerney, Arnab Pain, Taane G Clark
In the version of this article initially published, the URL listed for TubercuList was incorrect. The correct URL is https://mycobrowser.epfl.ch/. The error has been corrected in the HTML and PDF versions of the article.
April 19, 2018: Nature Genetics
https://www.readbyqxmd.com/read/29674327/incorporating-medication-indications-into-the-prescribing-process
#6
Kevin Kron, Sara Myers, Lynn Volk, Aaron Nathan, Pamela Neri, Alejandra Salazar, Mary G Amato, Adam Wright, Sam Karmiy, Sarah McCord, Enrique Seoane-Vazquez, Tewodros Eguale, Rosa Rodriguez-Monguio, David W Bates, Gordon Schiff
PURPOSE: The incorporation of medication indications into the prescribing process to improve patient safety is discussed. SUMMARY: Currently, most prescriptions lack a key piece of information needed for safe medication use: the patient-specific drug indication. Integrating indications could pave the way for safer prescribing in multiple ways, including avoiding look-alike/sound-alike errors, facilitating selection of drugs of choice, aiding in communication among the healthcare team, bolstering patient understanding and adherence, and organizing medication lists to facilitate medication reconciliation...
April 19, 2018: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/29672523/optimal-dynamic-control-approach-in-a-multi-objective-therapeutic-scenario-application-to-drug-delivery-in-the-treatment-of-prostate-cancer
#7
Itziar Irurzun-Arana, Alvaro Janda, Sergio Ardanza-Trevijano, Iñaki F Trocóniz
Numerous problems encountered in computational biology can be formulated as optimization problems. In this context, optimization of drug release characteristics or dosing schedules for anticancer agents has become a prominent area not only for the development of new drugs, but also for established drugs. However, in complex systems, optimization of drug exposure is not a trivial task and cannot be efficiently addressed through trial-error simulation exercises. Finding a solution to those problems is a challenging task which requires more advanced strategies like optimal control theory...
April 19, 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29667584/pharmacist-interventions-during-patient-rounds-in-two-intensive-care-units-clinical-and-financial-impact
#8
B E Bosma, P M L A van den Bemt, P H G J Melief, J van Bommel, S S Tan, N G M Hunfeld
INTRODUCTION: The risk of prescribing errors and related adverse drug events (ADE) on the intensive care unit (ICU) is high. Based on studies carried out in North America or the UK, a clinical pharmacy service can reduce ADEs and lower overall costs. This study looks into the clinical and financial impact of interventions made by pharmacists during patient rounds in two ICU settings in the Netherlands. MATERIALS AND METHODS: A quality improvement study was performed in a general teaching hospital (GTH) and a university hospital (UH) in the Netherlands...
April 2018: Netherlands Journal of Medicine
https://www.readbyqxmd.com/read/29667263/assumptions-made-when-preparing-drug-exposure-data-for-analysis-have-an-impact-on-results-an-unreported-step-in-pharmacoepidemiology-studies
#9
Stephen R Pye, Thérèse Sheppard, Rebecca M Joseph, Mark Lunt, Nadyne Girard, Jennifer S Haas, David W Bates, David L Buckeridge, Tjeerd P van Staa, Robyn Tamblyn, William G Dixon
PURPOSE: Real-world data for observational research commonly require formatting and cleaning prior to analysis. Data preparation steps are rarely reported adequately and are likely to vary between research groups. Variation in methodology could potentially affect study outcomes. This study aimed to develop a framework to define and document drug data preparation and to examine the impact of different assumptions on results. METHODS: An algorithm for processing prescription data was developed and tested using data from the Clinical Practice Research Datalink (CPRD)...
April 17, 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29666902/effect-of-cyp2c19-ugt1a8-and-ugt2b7-on-valproic-acid-clearance-in-children-with-epilepsy-a-population-pharmacokinetic-model
#10
Shenghui Mei, Weixing Feng, Leting Zhu, Xingang Li, Yazhen Yu, Weili Yang, Baoqin Gao, Xiaojuan Wu, Fang Fang, Zhigang Zhao
PURPOSE: Valproic acid (VPA) is an important drug in seizure control with great inter-individual differences in metabolism and treatment effect. This study aims to identify the effects of genetic variants on VPA clearance in a population pharmacokinetic (popPK) model in children with epilepsy. METHODS: A total of 325 VPA plasma concentrations from 290 children with epilepsy were used to develop the popPK model by using the nonlinear mixed-effects modeling method...
April 17, 2018: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29665951/statistical-considerations-for-pediatric-multidrug-resistant-tuberculosis-efficacy-trials
#11
S Kim, J A Seddon, A J Garcia-Prats, G Montepiedra
The inclusion of newly licensed or repurposed drugs in regimens to treat children for multidrug-resistant tuberculosis (TB) may lead to treatment that is shorter than traditional regimens and composed only of oral medications. As an all-oral regimen may be more acceptable and have a better safety profile than current regimens, demonstrating non-inferiority may be satisfactory. Demonstrating non-inferior efficacy requires setting a non-inferiority margin and safeguarding study assay sensitivity. Multi-arm, multistage designs may currently not be appropriate in pediatric trials because of the lack of sensitive and specific intermediate outcomes...
May 1, 2018: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/29660679/rapid-quantitation-of-atorvastatin-in-process-pharmaceutical-powder-sample-using-raman-spectroscopy-and-evaluation-of-parameters-related-to-accuracy-of-analysis
#12
Young-Il Lim, Janghee Han, Young-Ah Woo, Jaejin Kim, Myung Joo Kang
The purpose of this study was to determine the atorvastatin (ATV) content in process pharmaceutical powder sample using Raman spectroscopy. To establish the analysis method, the influence of the type of Raman measurements (back-scattering or transmission mode), preparation of calibration sample (simple admixing or granulation), sample pre-treatment (pelletization), and spectral pretreatment on the Raman spectra was investigated. The characteristic peak of the active compound was more distinctively detected in transmission Raman mode with a laser spot size of 4mm than in the back-scattering method...
April 10, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29659411/accuracy-and-precision-of-intravitreal-injections-of-anti-vascular-endothelial-growth-factor-agents-in-real-life-what-is-actually-in-the-syringe
#13
Itamar Loewenstein, Michaella Goldstein, Joseph Moisseiev, Elad Moisseiev
PURPOSE: To evaluate the accuracy and precision of anti-vascular endothelial growth factor volume delivery by intravitreal injections in the clinical setup. METHODS: Volume output was measured in 669 intravitreal injections administered to patients, calculated from the difference in syringe weight before and after expelling the drug. Three groups were included: prefilled bevacizumab 1.0 mL syringe (Group 1, n = 432), pre-filled ranibizumab in a small-volume syringe with low dead-space plunger design (Group 2, n = 125), and aflibercept drawn and injected using a 1...
April 13, 2018: Retina
https://www.readbyqxmd.com/read/29659107/knowledge-and-practice-of-healthcare-professionals-relating-to-oral-medicine-use-in-swallowing-impaired-patients-a-scoping-review
#14
REVIEW
Mehrusha Masilamoney, Ros Dowse
OBJECTIVES: Swallowing impairment is a growing problem that affects 16% of the overall population and can significantly affect medicine-taking. However, little is known about the knowledge and practice of healthcare professionals (HCPs) relating to swallowing-impaired (SI) patients. The aim of this scoping review was to investigate the knowledge and practice of HCPs in supporting SI patients with their medicine-taking, to identify their reference sources, and to describe their training and information needs...
April 16, 2018: International Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/29658451/-clinical-and-genetic-analysis-of-a-pediatric-patient-with-sodium-taurocholate-cotransporting-polypeptide-deficiency
#15
Hua Li, Jian-Wu Qiu, Gui-Zhi Lin, Mei Deng, Wei-Xia Lin, Ying Cheng, Yuan-Zong Song
Sodium taurocholate cotransporting polypeptide (NTCP) deficiency is an inborn error of bile acid metabolism caused by mutations of SLC10A1 gene. This paper reports the clinical and genetic features of a patient with this disease. A 3.3-month-old male infant was referred to the hospital with the complaint of jaundiced skin and sclera over 3 months. Physical examination revealed moderate jaundice of the skin and sclera. The liver was palpable 3.5 cm below the right subcostal margin with a medium texture. Serum biochemistry analysis revealed markedly elevated bilirubin (predominantly direct bilirubin) and total bile acids (TBA), as well as decreased 25-OH-VitD level...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29658392/reconstruction-of-a-deformed-tumor-based-on-fiducial-marker-registration-a-computational-feasibility-study
#16
Ye Han, Emily Oakley, Gal Shafirstein, Yoed Rabin, Levent Burak Kara
Interstitial photodynamic therapy has shown promising results in the treatment of locally advanced head and neck cancer. In this therapy, systemic administration of a light-sensitive drug is followed by insertion of multiple laser fibers to illuminate the tumor and its margins. Image-based pretreatment planning is employed in order to deliver a sufficient light dose to the complex locally advanced head-and-neck cancer anatomy, in order to meet clinical requirements. Unfortunately, the tumor may deform between pretreatment imaging for the purpose of planning and intraoperative imaging when the plan is executed...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29651591/importance-of-qt-rr-hysteresis-correction-in-studies-of-drug-induced-qtc-interval-changes
#17
Marek Malik, Christine Garnett, Katerina Hnatkova, Lars Johannesen, Jose Vicente, Norman Stockbridge
QT/RR hysteresis and QT/RR adaptation are interlinked but separate physiological processes signifying how quickly and how much QT interval changes when heart rate changes, respectively. While QT interval duration is, as a rule, corrected for heart rate in terms of the QT/RR adaptation, the correction for QT/RR hysteresis is frequently omitted in studies of drug-induced QTc changes. This study used data from previously conducted thorough QT studies to investigate the extent of QTc errors caused by omitting the correction for QT/RR hysteresis, particularly in small clinical investigations...
April 12, 2018: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/29648934/understanding-prediabetes-in-a-medicare-advantage-population-using-data-adaptive-techniques
#18
Pravin S Kamble, Jenna Collins, Raymond A Harvey, Todd Prewitt, Ed Kimball, Tony Deluzio, Elsie Allen, Jonathan R Bouchard
The objective was to identify individuals with undiagnosed prediabetes from administrative data using adaptive techniques. The data source was a national Medicare Advantage Prescription Drug (MAPD) plan administrative data set. A retrospective, cross-sectional study developed and evaluated data adaptive logistic regression, decision tree, neural network, and ensemble predictive models for metabolic syndrome and prediabetes using 3 mutually exclusive cohorts (N = 279,903). The misclassification rate (MCR), average squared error (ASE), c-statistics, sensitivity (SN), and false positive (FP) rates were compared to select the final predictive models...
April 12, 2018: Population Health Management
https://www.readbyqxmd.com/read/29644725/acid-suppressive-drugs-and-risk-of-kidney-disease-a-systematic-review-and-meta-analysis
#19
Tingting Qiu, Junwen Zhou, Chao Zhang
BACKGROUND AND AIM: More concerns had been raised about the risk of kidney disease (KD) associated with acid-suppressive drugs (ASDs). But whether they could directly increase such risk remained unclear. Meta-analysis was conducted to comprehensively investigate this relationship. METHODS: PubMed, EMBASE, Cochrane Central Register of Controlled Trials, and three Chinese databases were searched until April 2017 for observational studies investigating the associations between ASDs and KD...
April 12, 2018: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29643908/lack-of-association-of-statin-use-with-vitamin-d-levels-in-a-hospital-based-population-of-type-2-diabetes-mellitus-patients
#20
Khalida Iqbal, Najmul Islam, Iqbal Azam, Naseema Mehboobali, Mohammad Perwaiz Iqbal
Objective: To investigate the relationship of statins (drug given to reduce serum levels of LDL-cholesterol) on vitamin D levels of Pakistani type 2 diabetes mellitus (DM) patients in a hospital in Karachi. Methods: In a cross-sectional survey, 312 consecutive patients with type 2 DM (219 males and 93 females, age 22-70 years) were recruited with informed consent. A questionnaire was administered to find out whether they were statin users or non-users. Serum was analyzed for concentrations of 25(OH) vitamin D [25(OH)D] and other related biomarkers such as serum cholesterol, triglycerides, HDL-cholesterol, LDL-cholesterol, phosphate and calcium using kit methods...
January 2018: Pakistan Journal of Medical Sciences Quarterly
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