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https://www.readbyqxmd.com/read/28426715/acute-hypoxia-influences-collagen-and-matrix-metalloproteinase-expression-by-human-keratoconus-cells-in-vitro
#1
Tina B McKay, Jesper Hjortdal, Shrestha Priyadarsini, Dimitrios Karamichos
Keratoconus (KC) is a progressive corneal ectasia linked to thinning of the central cornea. Hard contact lenses, rigid gas permeable lenses, and scleral lenses are the primary treatment modalities for early to mid- stages of KC to correct refractive error and astigmatism that develops as a result of an irregular corneal structure. These treatments are associated with significant drawbacks, including reduced availability of the tear film and oxygen to the corneal epithelium and stroma. However, it remains unknown whether hypoxia affects corneal integrity in the KC pathobiology...
2017: PloS One
https://www.readbyqxmd.com/read/28418101/effect-of-an-electronic-medication-administration-record-application-on-patient-safety
#2
Noelia Vicente Oliveros, Teresa Gramage Caro, Covadonga Pérez Menendez-Conde, Ana María Álvarez-Díaz, Sagrario Martín-Aragón Álvarez, Teresa Bermejo Vicedo, Eva Delgado Silveira
RATIONALE, AIMS, AND OBJECTIVES: To evaluate the effect of an electronic medication administration record (eMAR) application on the rate of medication errors in medication administration recording (ME-MAR). METHODS: A before-and-after, quasiexperimental study was conducted in a university hospital that implemented the eMAR application in March 2014. Data collection was conducted in April 2012 (pre-) and June 2014 (post-) by two pharmacists. The ME-MARs were analysed by the staff involved to identify their cause...
April 18, 2017: Journal of Evaluation in Clinical Practice
https://www.readbyqxmd.com/read/28417303/paediatric-in-patient-prescribing-errors-in-malaysia-a-cross-sectional-multicentre-study
#3
Teik Beng Khoo, Jing Wen Tan, Hoong Phak Ng, Chong Ming Choo, Intan Nor Chahaya Bt Abdul Shukor, Siao Hean Teh
Background There is a lack of large comprehensive studies in developing countries on paediatric in-patient prescribing errors in different settings. Objectives To determine the characteristics of in-patient prescribing errors among paediatric patients. Setting General paediatric wards, neonatal intensive care units and paediatric intensive care units in government hospitals in Malaysia. Methods This is a cross-sectional multicentre study involving 17 participating hospitals. Drug charts were reviewed in each ward to identify the prescribing errors...
April 17, 2017: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/28416813/brain-derived-neurotrophic-factor-val-66-met-genotype-and-ovarian-steroids-interactively-modulate-working-memory-related-hippocampal-function-in-women-a-multimodal-neuroimaging-study
#4
S-M Wei, E B Baller, P D Kohn, J S Kippenhan, B Kolachana, S J Soldin, D R Rubinow, P J Schmidt, K F Berman
Preclinical evidence suggests that the actions of ovarian steroid hormones and brain-derived neurotrophic factor (BDNF) are highly convergent on brain function. Studies in humanized mice document an interaction between estrus cycle-related changes in estradiol secretion and BDNF Val(66)Met genotype on measures of hippocampal function and anxiety-like behavior. We believe our multimodal imaging data provide the first demonstration in women that the effects of the BDNF Val/Met polymorphism on hippocampal function are selectively modulated by estradiol...
April 18, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28414972/an-lc-ms-ms-method-for-quantification-of-ac0010-a-novel-mutant-selective-epidermal-growth-factor-receptor-egfr-inhibitor-and-its-metabolites-in-human-plasma-and-the-application-to-a-pharmacokinetic-study
#5
Lu Wang, Xin Zheng, Weicong Wang, Pei Hu, Ji Jiang
AC0010 is an irreversible, mutant-selective EGFR inhibitor that effectively inhibits EGFR active and T790M resistance mutations in non-small cell lung cancer (NSCLC). A sensitive ultra-performance liquid chromatography - tandem mass spectrometry (UPLC-MS/MS) method was developed and fully validated for determining AC0010 and its metabolites in human plasma. The samples were purified by solid-phase extraction (SPE) columns and separated on a BEH C18 column. Electrospray ionization (ESI) in positive ion mode and multiple reaction monitoring (MRM) were used to monitor the ion transitions of AC0010 (m/z 488→257) and its metabolites M1 (m/z 474→403), M2 (m/z 504→487), M4 (m/z 434→377), M7 (m/z 490→405), MII-1 (m/z 651→434) and MII-2 (m/z 609→434)...
March 28, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28413272/an-analysis-of-perioperative-adverse-neurological-events-associated-with-anesthetic-management-at-a-tertiary-care-center-of-a-developing-country
#6
Fauzia Anis Khan, Sobia Khan, Gauhar Afshan
BACKGROUND AND AIMS: Existing literature on neurological complications related to anesthesia is reported from affluent countries but the trends may vary in less affluent countries. MATERIAL AND METHODS: The objective was to find the associated factors contributing to neurological adverse events occurring within 48 h of anesthesia and surgery. The existing departmental morbidity and mortality database was reviewed from 1992 to 2012 for major adverse neurological events...
January 2017: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28410711/failure-modes-and-effects-analysis-of-bilateral-same-day-cataract-surgery
#7
Neal H Shorstein, Carol Lucido, James Carolan, Liyan Liu, Geraldine Slean, Lisa J Herrinton
PURPOSE: To systematically analyze potential process failures related to bilateral same-day cataract surgery toward the goal of improving patient safety. SETTING: Twenty-one Kaiser Permanente surgery centers, Northern California, USA. DESIGN: Retrospective cohort study. METHODS: Quality experts performed a Failure Modes and Effects Analysis (FMEA) that included an evaluation of sterile processing, pharmaceuticals, perioperative clinic and surgical center visits, and biometry...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28406858/involvement-of-multiple-molecular-pathways-in-the-genetics-of-ocular-refraction-and-myopia
#8
Robert Wojciechowski, Ching-Yu Cheng
PURPOSE: The prevalence of myopia has increased dramatically worldwide within the last three decades. Recent studies have shown that refractive development is influenced by environmental, behavioral, and inherited factors. This review aims to analyze recent progress in the genetics of refractive error and myopia. METHODS: A comprehensive literature search of PubMed and OMIM was conducted to identify relevant articles in the genetics of refractive error. RESULTS: Genome-wide association and sequencing studies have increased our understanding of the genetics involved in refractive error...
April 11, 2017: Retina
https://www.readbyqxmd.com/read/28404522/observations-on-the-relationship-between-anisometropia-amblyopia-and-strabismus
#9
Earl L Smith, Li-Fang Hung, Baskar Arumugam, Janice M Wensveen, Yuzo M Chino, Ronald S Harwerth
We investigated the potential causal relationships between anisometropia, amblyopia and strabismus, specifically to determine whether either amblyopia or strabismus interfered with emmetropization. We analyzed data from non-human primates that were relevant to the co-existence of anisometropia, amblyopia and strabismus in children. We relied on interocular comparisons of spatial vision and refractive development in animals reared with 1) monocular form deprivation; 2) anisometropia optically imposed by either contact lenses or spectacle lenses; 3) organic amblyopia produced by laser ablation of the fovea; and 4) strabismus that was either optically imposed with prisms or produced by either surgical or pharmacological manipulation of the extraocular muscles...
April 18, 2017: Vision Research
https://www.readbyqxmd.com/read/28400716/evaluation-of-the-display-of-cognitive-state-feedback-to-drive-adaptive-task-sharing
#10
Michael C Dorneich, Břetislav Passinger, Christopher Hamblin, Claudia Keinrath, Jiři Vašek, Stephen D Whitlow, Martijn Beekhuyzen
This paper presents an adaptive system intended to address workload imbalances between pilots in future flight decks. Team performance can be maximized when task demands are balanced within crew capabilities and resources. Good communication skills enable teams to adapt to changes in workload, and include the balancing of workload between team members This work addresses human factors priorities in the aviation domain with the goal to develop concepts that balance operator workload, support future operator roles and responsibilities, and support new task requirements, while allowing operators to focus on the most safety critical tasks...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28396505/genetic-characterisation-of-dog-personality-traits
#11
Joanna Ilska, Marie J Haskell, Sarah C Blott, Enrique Sánchez-Molano, Zita Polgar, Sarah E Lofgren, Dylan N Clements, Pam Wiener
The genetic architecture of behavioural traits in dogs is of great interest to owners, breeders and professionals involved in animal welfare, as well as to scientists studying the genetics of animal (including human) behaviour. The genetic component of dog behaviour is supported by between-breed differences and some evidence of within-breed variation. However, it is a challenge to gather sufficiently large datasets to dissect the genetic basis of complex traits such as behaviour, which are both time-consuming and logistically difficult to measure, and known to be influenced by non-genetic factors...
April 10, 2017: Genetics
https://www.readbyqxmd.com/read/28394204/medication-adherence-staying-within-the-boundaries-of-safety
#12
Robin Sue Mickelson, Richard J Holden
An important domain of patient safety is the management of medications in home and community settings by patients and their caregiving network. This study applied human factors/ergonomics theories and methods to data about medication adherence collected from 61 patients with heart failure accompanied by 31 informal caregivers living in the US. Seventy non-adherence events were identified, described, and analysed for performance shaping factors. Half were classified as errors and half as violations. Performance shaping factors included elements of the person or team (e...
April 10, 2017: Ergonomics
https://www.readbyqxmd.com/read/28390692/detection-of-mosaicism-at-blastocyst-stage-with-the-use-of-high-resolution-next-generation-sequencing
#13
REVIEW
Santiago Munné, Dagan Wells
A significant proportion of human preimplantation embryos produced during the course of in vitro fertilization (IVF) treatments contain two or more cytogenetically distinct cell lines. This phenomenon, known as chromosomal mosaicism, can involve the presence of cells with different types of aneuploidy in the absence of any normal cells or a mixture of euploid and abnormal cells. Although a high prevalence of mosaicism at the cleavage and blastocyst stages has been appreciated for two decades, the precise frequency of the phenomenon and its consequences for embryo viability have been difficult to quantify...
April 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28388698/the-magnification-factor-accounts-for-the-greater-hypometria-and-imprecision-of-larger-saccades-evidence-from-a-parametric-human-behavioral-study
#14
Françoise Vitu, Soazig Casteau, Hossein Adeli, Gregory J Zelinsky, Eric Castet
Saccades quite systematically undershoot a peripheral visual target by about 10% of its eccentricity while becoming more variable, mainly in amplitude, as the target becomes more peripheral. This undershoot phenomenon has been interpreted as the strategic adjustment of saccadic gain downstream of the superior colliculus (SC), where saccades are programmed. Here, we investigated whether the eccentricity-related increase in saccades' hypometria and imprecision might not instead result from overrepresentation of space closer to the fovea in the SC and visual-cortical areas...
April 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28386186/mechanistic-prediction-of-food-effects-for-compound-a-tablet-using-pbpk-model
#15
Xueqing Li, Lei Shi, Xiuling Tang, Qinghui Wang, Lun Zhou, Wei Song, Zhijun Feng, Jie Ge, Jian Kang Li, Lin Yang, Aidong Wen, Yan Zhang
Physiologically based pharmacokinetic (PBPK) modeling has been extensively used to study the factors of effect drug absorption, distribution, metabolize and extraction progress in human. In this study, Compound A(CPD A) is a BCS Class II drug, which has been extensive applied in clinical as lipid-lowering drug, administered orally after food, they displayed positive food effects in human, A PBPK model was built to mechanistic investigate the food effect of CPD A tablet in our study. By using gastroplus™ software, the PBPK models accurately predicted the results of food effects and predicted data were within 2-fold error of the observed results...
March 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28380263/estimating-the-probability-of-human-error-by-incorporating-component-failure-data-from-user-induced-defects-in-the-development-of-complex-electrical-systems
#16
Peter J Majewicz, Paul Blessner, Bill Olson, Timothy Blackburn
This article proposes a methodology for incorporating electrical component failure data into the human error assessment and reduction technique (HEART) for estimating human error probabilities (HEPs). The existing HEART method contains factors known as error-producing conditions (EPCs) that adjust a generic HEP to a more specific situation being assessed. The selection and proportioning of these EPCs are at the discretion of an assessor, and are therefore subject to the assessor's experience and potential bias...
April 5, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28373266/global-proteomic-analysis-of-human-liver-microsomes-rapid-characterization-and-quantification-of-hepatic-drug-metabolizing-enzymes
#17
Brahim Achour, Hajar Al-Feteisi, Francesco Lanucara, Amin Rostami-Hodjegan, Jill Barber
Many genetic and environmental factors lead to inter-individual variations in metabolism and transport of drugs, profoundly affecting efficacy and toxicity. Precision dosing, targeting drug dose to a well-characterised sub-population, is dependent on quantitative models of the profiles of drug-metabolizing enzymes and transporters within that sub-population, informed by quantitative proteomics. We report the first use of ion mobility-mass spectrometry for this purpose, allowing rapid, robust, label-free quantification of human liver microsomal (HLM) proteins from distinct individuals...
April 3, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28369880/comparing-the-error-related-negativity-across-groups-the-impact-of-error-and-trial-number-differences
#18
Adrian G Fischer, Tilmann A Klein, Markus Ullsperger
The error-related negativity (ERN or Ne) is increasingly being investigated as a marker discriminating interindividual factors and moves toward a surrogate marker for disorders or interventions. Although reproducibility and validity of neuroscientific and psychological research has been criticized, clear data on how different quantification methods of the ERN and their relation to available trial numbers affect within- and across-participant studies is sparse. Within a large sample of 863 healthy human participants, we demonstrate that, across participants, the number of errors correlates with the amplitude of the ERN independently of the number of errors included in ERN quantification per participant, constituting a possible confound when such variance is unaccounted for...
April 3, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28364581/self-reported-confidence-in-patient-safety-knowledge-among-australian-undergraduate-nursing-students-a-multi-site-cross-sectional-survey-study
#19
Kim Usher, Cindy Woods, Glenda Parmenter, Marie Hutchinson, Judy Mannix, Tamara Power, Wendy Chaboyer, Sharon Latimer, Jane Mills, Lesley Siegloff, Debra Jackson
BACKGROUND: Patient safety is critical to the provision of quality health care and thus is an essential component of nurse education. OBJECTIVE: To describe first, second and third year Australian undergraduate nursing students' confidence in patient safety knowledge acquired in the classroom and clinical settings across the three years of the undergraduate nursing program. DESIGN: A cross-sectional online survey conducted in 2015. SETTING: Seven Australian universities with campuses across three states (Queensland, New South Wales, South Australia)...
March 25, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28360097/chk2-overexpression-and-mislocalisation-within-mitotic-structures-enhances-chromosomal-instability-and-hepatocellular-carcinoma-progression
#20
Vinicio Carloni, Matteo Lulli, Stefania Madiai, Tommaso Mello, Andrew Hall, Tu Vinh Luong, Massimo Pinzani, Krista Rombouts, Andrea Galli
OBJECTIVE: Chromosomal instability (CIN) is the most common form of genomic instability, which promotes hepatocellular carcinoma (HCC) progression by enhancing tumour heterogeneity, drug resistance and immunity escape. CIN per se is an important factor of DNA damage, sustaining structural chromosome abnormalities but the underlying mechanisms are unknown. DESIGN: DNA damage response protein checkpoint kinase 2 (Chk2) expression was evaluated in an animal model of diethylnitrosamine-induced HCC characterised by DNA damage and elevated mitotic errors...
March 30, 2017: Gut
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