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https://www.readbyqxmd.com/read/28208897/a-validation-of-an-examination-protocol-for-cerebral-visual-impairment-among-children-in-a-clinical-population-in-india
#1
Swetha Sara Philip, Sherab Tsherlinga, Maya Mary Thomas, Gordon N Dutton, Richard Bowman
INTRODUCTION: Cerebral Visual Impairment (CVI) is a leading cause of vision impairment in developed and developing countries due to and increased survival of preterm and low birth weight infants. There are few data concerning the validity of protocols available to diagnose CVI. AIM: This study aimed to document the face, content and construct validity of an assessment protocol namely, a 15-domain, Structured Clinical Question Inventory (SCQI), which is based on structured history taking and clinical examination, for the diagnosis of CVI in a clinical population of India...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28197719/regulatory-crosstalk-between-micrornas-and-hormone-signalling-cascades-controls-the-variation-on-seed-dormancy-phenotype-at-arabidopsis-thaliana-seed-set
#2
Yang Liu, Yousry A El-Kassaby
We employed an Illumina sequencing approach to identify candidate microRNA cohorts that may greatly contribute to seed dormancy modulation and to construct a microRNA-gene regulatory network in hormone signalling cascades. MicroRNAs (miRNAs) are important signalling molecules and regulate many developmental programs of plants. Some miRNAs have been integrated into gene regulatory networks (GRNs) and coordinate developmental plasticity, but few study systematically investigated how phenotypical variations are regulated through differential expression of miRNA tags in GRNs during seed set...
February 14, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28196919/estimates-of-within-subject-biological-variation-of-protein-c-antithrombin-protein-s-free-protein-s-activity-and-activated-protein-c-resistance-in-pregnant-women
#3
Ann H Kristoffersen, Per H Petersen, Thomas R Raas, Sverre Sandberg
BACKGROUND: In pregnancy, interpretation of results from coagulation parameters can be difficult because of the procoagulant physiological changes. The aim of this study was to describe the course of 5 coagulation parameters (thrombophilia markers) in healthy pregnancies, and to estimate and compare the within-subject biological variation (CVI) of these parameters in healthy pregnant and nonpregnant women. METHODS: Blood samples were obtained every 4th week during pregnancy and 3 samples after delivery in 20 healthy women and every 4th week during 40 weeks in 19 healthy nonpregnant women...
February 14, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28195603/classification-of-exudative-age-related-macular-degeneration-with-pachyvessels-on-en-face-swept-source-optical-coherence-tomography
#4
Danny Siu-Chun Ng, Malini Bakthavatsalam, Frank Hiu-Ping Lai, Carol Yim-Lui Cheung, Gemmy Chu-Ming Cheung, Fang Yao Tang, Chi Wai Tsang, Timothy Yuk-Yau Lai, Tien Yin Wong, Mårten Erik Brelén
Purpose: The purpose of this study was to classify exudative maculopathy by the presence of pachyvessels on en face swept-source optical coherence tomography (SSOCT). Methods: Consecutive patients with signs of exudative maculopathy underwent SSOCT, fluorescein and indocyanine green angiography (ICGA), ultra-widefield fundus color photography, and autofluorescence examinations. Images were analyzed in a masked fashion by two sets of four examiners in different sessions: (1) the presence of pachyvessels in en face OCT and (2) features of exudative maculopathy in conventional imaging modalities...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28188231/diurnal-and-long-term-variation-in-plasma-concentrations-and-renal-clearances-of-circulating-markers-of-kidney-proximal-tubular-secretion
#5
Matthew B Rivara, Leila R Zelnick, Andrew N Hoofnagle, Rick Newitt, Russell P Tracy, Mario Kratz, David S Weigle, Bryan R Kestenbaum
BACKGROUND: The renal proximal tubule is essential for removing organic solutes and exogenous medications from the circulation. We evaluated diurnal, prandial, and long-term biological variation of 4 candidate endogenous markers of proximal tubular secretion. METHODS: We used LC-MS to measure plasma and urine concentrations of hippurate (HA), cinnamoylglycine (CMG), indoxyl sulfate (IS), and p-cresol sulfate (PCS) in 25 healthy adults. We measured plasma concentrations of secreted solutes at 13 time points over a 24-h period, and again after 2 weeks and 14 weeks of follow-up...
February 10, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28180215/pdzn-catalysts-for-co2-hydrogenation-to-methanol-using-chemical-vapour-impregnation-cvi
#6
H Bahruji, M Bowker, W Jones, J Hayward, J Ruiz Esquius, D J Morgan, G J Hutchings
The formation of PdZn bimetallic alloys on ZnO, TiO2 and Al2O3 supports was investigated, together with the effect of alloy formation on the CO2 hydrogenation reaction. The chemical vapour impregnation (CVI) method produced PdZn nanoparticles with diameters of 3-6 nm. X-ray photoelectron spectroscopy and X-ray diffraction revealed the changes in the structure of the PdZn alloy that help stabilise formate intermediates during methanol synthesis. PdZn supported on TiO2 exhibits high methanol productivity of 1730 mmol kgcat(-1) h(-1) that is associated with the high dispersion of the supported PdZn alloy...
February 9, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28152235/community-delivery-of-semiautomated-fractal-analysis-tool-in-cardiac-mr-for-trabecular-phenotyping
#7
Gabriella Captur, Dina Radenkovic, Chunming Li, Yu Liu, Nay Aung, Filip Zemrak, Catalina Tobon-Gomez, Xuexin Gao, Perry M Elliott, Steffen E Petersen, David A Bluemke, Matthias G Friedrich, James C Moon
PURPOSE: To report the development of easy-to-use magnetic resonance imaging (MRI) fractal tools deployed on platforms accessible to all. The trabeculae of the left ventricle vary in health and disease but their measurement is difficult. Fractal analysis of cardiac MR images can measure trabecular complexity as a fractal dimension (FD). MATERIALS AND METHODS: This Health Insurance Portability and Accountability Act (HIPAA)-compliant study was approved by the local Institutional Review Board...
February 2, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28150038/choroidal-structures-in-polypoidal-choroidal-vasculopathy-neovascular-age-related-maculopathy-and-healthy-eyes-determined-by-binarization-of-swept-source-optical-coherence-tomographic-images
#8
Malini Bakthavatsalam, Danny Siu-Chun Ng, Frank Hiu-Ping Lai, Fang Yao Tang, Mårten Erik Brelén, Chi Wai Tsang, Timothy Yuk-Yau Lai, Carol Yim-Lui Cheung
PURPOSE: To evaluate quantitatively the choroidal vascularity in polypoidal choroidal vasculopathy (PCV) and neovascular age-related macular degeneration (AMD) patients compared to healthy controls. METHODS: All eyes underwent swept source optical coherence tomography (OCT), and choroidal images were binarized into blood vessels lumen and stroma. The choroidal vascular index (CVI) was defined as the ratio of luminal area (LA) over total choroidal area of the subfoveal region with a width of 1500 μm...
February 1, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28144461/feasibility-reliability-and-validity-of-the-iranian-version-of-the-quality-of-life-questionnaire-for-pregnancy
#9
Mojgan Mirghafourvand, Sakineh Mohammad-Alizadeh-Charandabi, Mohammad Asghari Jafarabadi, Fatemeh Shiri, Solmaz Ghanbari-Homayi
BACKGROUND: Clinical studies are giving increased importance to quality of life assessments as measures of the relative effectiveness of prevention and treatment programs used during pregnancy and antenatally. OBJECTIVES: The aim of this study was to validate the Quality of life gravidarum (QOL-GRAV) questionnaire for Iranian women during the pregnant period. PATIENTS AND METHODS: In this cross-sectional methodological study, content validity following back and forward translation was assessed by a panel of experts...
September 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28144457/alexander-technique-training-coupled-with-an-integrative-model-of-behavioral-prediction-in-teachers-with-low-back-pain
#10
Tahereh Kamalikhah, Mohammad Ali Morowatisharifabad, Farid Rezaei-Moghaddam, Mohammad Ghasemi, Mohammad Gholami-Fesharaki, Salma Goklani
BACKGROUND: Individuals suffering from chronic low back pain (CLBP) experience major physical, social, and occupational disruptions. Strong evidence confirms the effectiveness of Alexander technique (AT) training for CLBP. OBJECTIVES: The present study applied an integrative model (IM) of behavioral prediction for improvement of AT training. METHODS: This was a quasi-experimental study of female teachers with nonspecific LBP in southern Tehran in 2014...
September 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28139903/endovenous-laser-ablation-in-patients-with-severe-primary-chronic-venous-insufficiency
#11
Vladimir Starodubtsev, Mikhail Lukyanenko, Andrey Karpenko, Pavel Ignatenko
BACKGROUND: The aim of study was to estimate the safety and efficacy of using laser wavelength of 1560 nm with the foam sclerotherapy (FS) of varicose veins (VVs) for the treatment of severe primary chronic venous insufficiency (CVI, C4-C6) in patients with different diameters of the proximal segment (DPS) of the great saphenous vein (GSV). METHODS: We have separated the patients into two groups depending on the size of GSV: group 1 (281 cases; DPS of GSV less than 15 mm) and group 2 (210 cases; DPS of GSV more than 15 mm)...
January 31, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28120233/methodological-study-to-develop-standard-operational-protocol-on-oral-drug-administration-for-children
#12
Sunil Kumar Bijarania, Sushma Kumari Saini, Sanjay Verma, Sukhwinder Kaur
OBJECTIVES: To develop standard operational protocol (SOP) on oral drug administration and checklist to assess the implementation of the developed SOP. METHODS: In this prospective methodological study, SOPs were developed in five phases. In the first phase, the preliminary draft of SOPs and checklists were prepared based on literature review, assessment of current practices and focus group discussion (FGD) with bedside working nurses. In the second phase, content validity was checked with the help of Delphi technique (12 experts)...
January 25, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28114078/cluster-validation-method-for-determining-the-number-of-clusters-in-categorical-sequences
#13
Gongde Guo, Lifei Chen, Yanfang Ye, Qingshan Jiang
Cluster validation, which is the process of evaluating the quality of clustering results, plays an important role for practical machine learning systems. Categorical sequences, such as biological sequences in computational biology, have become common in real-world applications. Different from previous studies, which mainly focused on attribute-value data, in this paper, we work on the cluster validation problem for categorical sequences. The evaluation of sequences clustering is currently difficult due to the lack of an internal validation criterion defined with regard to the structural features hidden in sequences...
September 27, 2016: IEEE Transactions on Neural Networks and Learning Systems
https://www.readbyqxmd.com/read/28111138/biologic-variability-of-n-terminal-pro-brain-natriuretic-peptide-in-healthy-dogs-and-dogs-with-myxomatous-mitral-valve-disease
#14
Randolph L Winter, Ashley B Saunders, Sonya G Gordon, Jesse S Buch, Matthew W Miller
INTRODUCTION: To determine the biologic variability of N-terminal pro-brain natriuretic peptide (NTproBNP) in healthy dogs and dogs with various stages of myxomatous mitral valve disease (MMVD). ANIMALS: Thirty-eight privately owned dogs: 28 with MMVD and 10 healthy controls. MATERIALS AND METHODS: Prospective clinical study with comprehensive evaluation used to group dogs as healthy or into three stages of MMVD based on current guidelines...
January 19, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/28077010/positive-aspects-of-caregiving-questionnaire
#15
Ibrahim Abdollahpour, Saharnaz Nedjat, Maryam Noroozian, Yahya Salimi, Reza Majdzadeh
OBJECTIVE: The potential role of positive aspects of caregiving in enhancing caregivers' health is an important issue. The aim of this study was to develop and validate Positive Aspects of Caregiving Questionnaire (PACQ) in caregivers of patients with dementia in Iran. METHODS: Content validation process was used to content valid development. Cronbach α and intraclass correlation coefficient (ICC) were calculated as reliability indices. We used exploratory factor analysis to extract potential latent factors and evaluate the factor structure of PACQ...
January 1, 2017: Journal of Geriatric Psychiatry and Neurology
https://www.readbyqxmd.com/read/28058478/cardiac-magnetic-resonance-feature-tracking-biventricular-two-dimensional-and-three-dimensional-strains-to-evaluate-ventricular-function-in-children-after-repaired-tetralogy-of-fallot-as-compared-with-healthy-children
#16
Fernando M Berganza, Cesar Gonzalez de Alba, Nazire Özcelik, Dilachew Adebo
Cardiac magnetic resonance imaging is an important tool to evaluate cardiac anatomy and ventricular size and function after repaired tetralogy of Fallot. Magnetic resonance tissue tagging is the gold standard for evaluation of myocardial strain. However, myocardial tagging strain requires tagged images to be obtained prospectively, during the scan and with limited temporal resolution. Cardiac magnetic resonance feature tracking is a new tool that allows the retrospective analysis of cine images. There is limited experience with cardiac magnetic resonance feature tracking strain analysis in children...
January 5, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28057694/nutrition-modification-aimed-at-enhancing-dietary-iron-and-folic-acid-intake-an-application-of-health-belief-model-in-practice
#17
Marzieh Araban, Khadije Baharzadeh, Mahmood Karimy
BACKGROUND: The amount of calories and nutrients required for woman increase during pregnancy and Intake adequate amounts of nutrients is essential for the health of mother and foetal. This study was designed to investigate the effect of nutrition education based on the Health Belief Model (HBM) on calories, iron and folic acid intake for pregnant women. METHODS: This quasi-experimental study was performed on 76 pregnant women referring to four urban health centres of Khuzestan at 2015...
January 4, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28057282/culprit-vessel-versus-multivessel-versus-in-hospital-staged-intervention-for-patients-with-st-segment-elevation-myocardial%C3%A2-infarction-and-multivessel-disease-stratified-analyses-in-high-risk-patient-groups-and-anatomic%C3%A2-subsets-of-nonculprit-disease
#18
M Bilal Iqbal, Imad J Nadra, Lillian Ding, Anthony Fung, Eve Aymong, Albert W Chan, Steven Hodge, Anthony Della Siega, Simon D Robinson
OBJECTIVES: This study evaluated revascularization strategies for patients with ST-segment elevation myocardial infarction (STEMI) and multivessel disease. BACKGROUND: In patients with STEMI and multivessel disease, it is unclear whether multivessel intervention (MVI), culprit vessel intervention (CVI) only (CVI-O) or CVI with staged revascularization (CVI-S) is associated with improved outcomes. Whether MVI at primary percutaneous coronary intervention may benefit specific patient groups is unclear...
January 9, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28056031/do-two-screening-tools-for-chikungunya-virus-infection-that-were-developed-among-younger-population-work-equally-as-well-in-patients-aged-over-65-years
#19
Lidvine Godaert, Fatiha Najioullah, Lionel Bousquet, Thomas Malmontet, Benoît Fournet, Raymond Césaire, Jean-Luc Fanon, Moustapha Dramé
BACKGROUND: Chikungunya is an endemo-epidemic infection, which is still considered as an emerging public health problem. The aim of this study was to evaluate in a 65+ population, the accuracy of two chikungunya screening scores that were developed in younger people. METHODS: It was performed in the Martinique University Hospitals from retrospective cases. Patients were 65+, admitted to acute care units, for suspected Chikungunya virus infection (CVI) in 2014, with biological testing using Reverse Transcription Polymerase Chain Reaction...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28053516/psychometric-properties-of-the-anxiety-inventory-for-respiratory-disease-in-patients-with-copd-in-china
#20
Xiao-Yan Dong, Lan Wang, Yan-Xia Tao, Xiu-Li Suo, Yue-Chuan Li, Fang Liu, Yue Zhao, Qing Zhang
BACKGROUND: Anxiety is a common comorbidity in patients with COPD in China, and it can significantly decrease patients' quality of life. Almost all anxiety measurements contain somatic items that can overlap with symptoms of COPD and side effects of medicines, which can lead to bias in measuring anxiety in patients with COPD. Therefore, a brief and disease-specific non-somatic anxiety measurement scale, the Anxiety Inventory for Respiratory Disease (AIR), which has been developed and validated in its English version, is needed for patients with COPD in China...
2017: International Journal of Chronic Obstructive Pulmonary Disease
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