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https://www.readbyqxmd.com/read/29150840/longitudinal-pathways-between-mental-health-difficulties-and-academic-performance-during-middle-childhood-and-early-adolescence
#1
Jessica Deighton, Neil Humphrey, Jay Belsky, Jan Boehnke, Panos Vostanis, Praveetha Patalay
There is a growing appreciation that child functioning in different domains, levels, or systems are interrelated over time. Here, we investigate links between internalizing symptoms, externalizing problems, and academic attainment during middle childhood and early adolescence, drawing on two large data sets (child: mean age 8.7 at enrolment, n = 5,878; adolescent: mean age 11.7, n = 6,388). Using a 2-year cross-lag design, we test three hypotheses - adjustment erosion, academic incompetence, and shared risk - while also examining the moderating influence of gender...
November 18, 2017: British Journal of Developmental Psychology
https://www.readbyqxmd.com/read/29150800/beat-to-beat-estimation-of-stroke-volume-using-impedance-cardiography-and-artificial-neural-network
#2
S M M Naidu, Prem C Pandey, Uttam R Bagal, Suhas P Hardas
Impedance cardiography is a low-cost noninvasive technique, based on monitoring of the thoracic impedance, for estimation of stroke volume (SV). Impedance cardiogram (ICG) is the negative of the first derivative of the impedance signal. A technique for beat-to-beat SV estimation using impedance cardiography and artificial neural network (ANN) is proposed. A three-layer feed-forward ANN with error back-propagation algorithm is optimized by examining the effects of number of neurons in the hidden layer, activation function, training algorithm, and set of input parameters...
November 18, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29150534/migration-and-cardiovascular-disease-risk-among-ghanaian-populations-in-europe-the-rodam-study-research-on-obesity-and-diabetes-among-african-migrants
#3
Daniel Boateng, Charles Agyemang, Erik Beune, Karlijn Meeks, Liam Smeeth, Matthias Schulze, Juliet Addo, Ama de-Graft Aikins, Cecilia Galbete, Silver Bahendeka, Ina Danquah, Peter Agyei-Baffour, Ellis Owusu-Dabo, Frank P Mockenhaupt, Joachim Spranger, Andre P Kengne, Diederick E Grobbee, Karien Stronks, Kerstin Klipstein-Grobusch
BACKGROUND: For migrant populations from sub-Saharan Africa, adverse cardiovascular disease (CVD) risk factors have been observed to be higher than found in their home country-based counterparts or among the host populations in high-income countries. Differences in absolute overall CVD risk, however, remain largely unexplained. We, therefore, predicted the differences in 10-year CVD risk among sub-Saharan African migrants (Ghanaians) living in 3 European cities and Ghana. METHODS AND RESULTS: For 3864 subjects aged 40 to 70 years from the multicenter RODAM study (Research on Obesity and Diabetes Among African Migrants) conducted among Ghanaian adults residing in rural and urban Ghana and 3 European cities (Amsterdam, Berlin, and London), 10-year risk of CVD was estimated using the Pooled Cohort Equations with estimates ≥7...
November 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/29150320/fractional-observer-to-estimate-periodical-forces
#4
A Coronel-Escamilla, J F Gómez-Aguilar, L Torres, R F Escobar-Jimnez, V H Olivares-Peregrino
In the present work we propose a fractional state observer with constant gain to estimate the periodical force exerted on a mechanical system by measuring only its displacement. The state observer is designed from both the Fourier series that approximates the periodical force and the equations of the damped harmonic oscillator that represents the behavior of the system. Specifically, the reconstruction of the force is carried out from the estimates of the series coefficients, which in fact are part of the dynamical system that composes the observer...
November 14, 2017: ISA Transactions
https://www.readbyqxmd.com/read/29150284/the-displacing-foods-of-modern-commerce-are-the-primary-and-proximate-cause-of-age-related-macular-degeneration-a-unifying-singular-hypothesis
#5
Chris A Knobbe, Marija Stojanoska
Age-related macular degeneration (AMD) is the leading cause of irreversible vision loss and blindness in developed nations. AMD is anticipated to affect 196 million people worldwide, by 2020. However, the etiology of this disease remains unknown. Aging, genetic, and environmental influences have generally been implicated as major etiologic factors. We sought to examine the hypothesis that consumption of the 'displacing foods of modern commerce,' which equate to processed, nutrient-deficient and potentially toxic foods, may be the primary and proximate cause of AMD...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150186/articular-scaling-and-body-mass-estimation-in-platyrrhines-and-catarrhines-modern-variation-and-application-to-fossil-anthropoids
#6
Jonathan M G Perry, Siobhán B Cooke, Jacqueline A Runestad Connour, M Loring Burgess, Christopher B Ruff
Body mass is an important component of any paleobiological reconstruction. Reliable skeletal dimensions for making estimates are desirable but extant primate reference samples with known body masses are rare. We estimated body mass in a sample of extinct platyrrhines and Fayum anthropoids based on four measurements of the articular surfaces of the humerus and femur. Estimates were based on a large extant reference sample of wild-collected individuals with associated body masses, including previously published and new data from extant platyrrhines, cercopithecoids, and hominoids...
November 14, 2017: Journal of Human Evolution
https://www.readbyqxmd.com/read/29149618/effectiveness-of-a-patient-centred-empowerment-based-intervention-programme-among-patients-with-poorly-controlled-type-2-diabetes-a-randomised-controlled-trial
#7
Li Cheng, Janet W H Sit, Kai-Chow Choi, Sek-Ying Chair, Xiaomei Li, Yuning Wu, Junhong Long, Meihua Tao
BACKGROUND: Despite extensive efforts and advances in evidence-based diabetes management, poor glycaemic control still remains a challenge in many countries. There is a paucity of research addressing the needs of patients with poorly controlled type 2 diabetes, or exploring the effectiveness of empowerment-based interventions in this vulnerable population. OBJECTIVES: To evaluate the effectiveness of a patient-centred, empowerment-based programme on glycaemic control and self-management behaviours among patients with poorly controlled type 2 diabetes...
November 3, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/29149237/multimorbidity-among-persons-living-with-hiv-in-the-u-s
#8
Cherise Wong, Stephen J Gange, Richard D Moore, Amy C Justice, Kate Buchacz, Alison G Abraham, Peter F Rebeiro, John R Koethe, Jeffrey N Martin, Michael A Horberg, Cynthia M Boyd, Mari M Kitahata, Heidi M Crane, Kelly A Gebo, M John Gill, Michael J Silverberg, Frank J Palella, Pragna Patel, Hasina Samji, Jennifer Thorne, Charles S Rabkin, Angel Mayor, Keri N Althoff
Background: Age-associated conditions are increasingly common among persons living with HIV. A longitudinal investigation of their accrual is needed given their implications on clinical care complexity. We examined trends in the co-occurrence of age-associated conditions among persons living with HIV receiving clinical care, and differences in their prevalence by demographic subgroup. Methods: This cohort study was nested within the North American AIDS Cohort Collaboration on Research and Design...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29147433/does-obesity-related-hemodilution-of-carcinoembryonic-antigen-exist-in-non-small-cell-lung-cancer-patients
#9
Masaki Tomita, Takanori Ayabe, Kunihide Nakamura
Background: Previous investigations reported inverse relationship between prostate-specific antigen concentration and body mass index (BMI). These results have been explained by a hemodilution effect among obese men. However, the hemodilution of serum carcinoembryonic antigen (CEA) concentration in obese patients with non-small cell lung cancer (NSCLC) has not been ever reported. Methods: Consecutive 381 NSCLC patients were enrolled. A body surface area (BSA)-based and a hematocrit (HCT)-based equations were applied for plasma volume (PV) estimation...
April 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29147168/study-of-the-characteristics-of-pulmonary-trunk-in-pulmonary-hypertension-secondary-to-left-heart-disease-using-pressure-velocity-loops-pu-loops
#10
Shizuo Hanya, Kengo Yoshii, Motoaki Sugawara
Objectives: Although pulmonary hypertension (PH) caused by left heart disease (PH-LHD) is more common in PH, little is known about its properties of pulmonary artery (PA) in PH-LHD. The purpose of this study was to measure pulmonary regional pulse wave velocity (PWV) and to quantify the magnitude of reflected waves in patients with PH-LHD by the analysis of the pressure-velocity loops (PU-loop). Methods: High-fidelity PA pressure (Pm) and PA velocity (Vm) were measured in 11 subjects with PH-LHD (mean Pm>25 mmHg), 1 subject with atrial septal defect (ASD) without PH and 12 control subjects, using multisensor catheters...
September 25, 2017: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29147132/numerical-investigation-of-pulse-wave-propagation-in-arteries-using-fluid-structure-interaction-capabilities
#11
Hisham Elkenani, Essam Al-Bahkali, Mhamed Souli
The aim of this study is to present a reliable computational scheme to serve in pulse wave velocity (PWV) assessment in large arteries. Clinicians considered it as an indication of human blood vessels' stiffness. The simulation of PWV was conducted using a 3D elastic tube representing an artery. The constitutive material model specific for vascular applications was applied to the tube material. The fluid was defined with an equation of state representing the blood material. The onset of a velocity pulse was applied at the tube inlet to produce wave propagation...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29146282/-measurement-and-estimation-of-glomerular-filtration-rate
#12
Emmanuelle Vidal-Petiot, Martin Flamant
Glomerular filtration rate is the best quantitative marker of renal function. It allows diagnosis and classification of severe chronic kidney disease into five stages. Theoretically, the measurement of glomerular filtration rate is based on the calculation of urinary clearance of exogenous substances such as chromium 51-labeled inulin or ethylenediaminetetraacetic acid ([(51)Cr]-EDTA). In practice, glomerular filtration rate is most often estimated from equations derived from plasma creatinine. This article reviews the range of methods used to measure or approximate glomerular filtration rate and attempts to describe recent developments in this area, including those related to plasma creatinine assay methods, creatinine and cystatin C concentration-derived estimations...
November 13, 2017: Néphrologie & Thérapeutique
https://www.readbyqxmd.com/read/29146224/joint-trajectories-of-cognition-and-frailty-and-associated-burden-of-patient-reported-outcomes
#13
Zuyun Liu, Ling Han, Evelyne A Gahbauer, Heather G Allore, Thomas M Gill
OBJECTIVES: To evaluate joint trajectories of cognition and frailty and their association with the cumulative burden of patient-reported outcomes, including hospitalization, nursing home admission, and disability. DESIGN: Longitudinal study of 754 community-living persons aged 70 or older. PARTICIPANTS: 690 participants who had a baseline and at least one follow-up assessment of cognition and frailty between 1998 and 2009. MEASUREMENTS: Cognition was assessed using the Mini-Mental State Examination (MMSE)...
November 14, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29145839/structural-effects-of-intra-articular-tgf-%C3%AE-1-in-moderate-to-advanced-knee-osteoarthritis-mri-based-assessment-in-a-randomized-controlled-trial
#14
A Guermazi, G Kalsi, J Niu, M D Crema, R O Copeland, A Orlando, M J Noh, F W Roemer
BACKGROUND: To determine effects of allogeneic human chondrocytes expressing TGF-β1 (TG-C) on structural progression of MRI features of knee osteoarthritis over a 1 year period. METHODS: This phase II randomized controlled trial of TG-C included patients with moderate to advanced osteoarthritis. Patients were randomized to receive an intraarticular 3:1 mixture of non-transduced allogeneic human chondrocytes and TG-C or placebo. 3 T MRI was acquired for all patients at baseline and follow-up (3, 6 and 12 months)...
November 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29145648/relative-performance-of-hpv-and-cytology-components-of-cotesting-in-cervical-screening
#15
Mark Schiffman, Walter K Kinney, Li C Cheung, Julia C Gage, Barbara Fetterman, Nancy E Poitras, Thomas S Lorey, Nicolas Wentzensen, Brian Befano, John Schussler, Hormuzd A Katki, Philip E Castle
Background: The main goal of cervical screening programs is to detect and treat precancer before cancer develops. Human papillomavirus (HPV) testing is more sensitive than cytology for detecting precancer. However, reports of rare HPV-negative, cytology-positive cancers are motivating continued use of both tests (cotesting) despite increased testing costs. Methods: We quantified the detection of cervical precancer and cancer by cotesting compared with HPV testing alone at Kaiser Permanente Northern California (KPNC), where 1 208 710 women age 30 years and older have undergone triennial cervical cotesting since 2003...
November 14, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29145288/efficacy-of-cold-application-on-pain-during-chest-tube-removal-a-randomized-controlled-trial-a-consort-compliant-article
#16
Ling-Yu Hsieh, Yi-Rong Chen, Mei-Chun Lu
BACKGROUND: Use of analgesics is the most common method to alleviate the pain induced by chest tube removal (CTR), but patient response to medication can vary and may not be achieved complete relaxation. This study was to determine the effectiveness of cold application in combination with standard analgesic administration before CTR on CTR-induced pain. METHODS: A prospective, randomized, single-blind, sham-controlled study was conducted. In addition to the same routine care, subjects in the experimental group (n = 30) received cold application of 600-g ice packs 15 minutes before CTR, whereas subjects in the sham group (n = 30) received tap water packs...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144272/body-composition-in-children-with-chronic-illness-accuracy-of-bedside-assessment-techniques
#17
Enid E Martinez, Craig D Smallwood, Nicolle L Quinn, Katelyn Ariagno, Lori J Bechard, Christopher P Duggan, Nilesh M Mehta
OBJECTIVE: To evaluate the accuracy of estimated fat mass and fat-free mass from bedside methods compared with reference methods in children with chronic illnesses. STUDY DESIGN: Fat mass and fat-free mass values were obtained by skinfold, bioelectrical impedance analysis (BIA), dual-energy x-ray absorptiometry (DXA), and deuterium dilution method in children with spinal muscular atrophy, intestinal failure, and post hematopoietic stem cell transplantation (HSCT)...
November 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29142987/prospective-study-of-routine-heparin-avoidance-hemodialysis-in-a-tertiary-acute-care-inpatient-practice
#18
Sami Safadi, Robert C Albright, John J Dillon, Amy W Williams, Fares Alahdab, Julie K Brown, Amanda L Severson, Walter K Kremers, Mary Ann Ryan, Marie C Hogan
Introduction: Extracorporeal circuit (EC) anticoagulation with heparin is a key advance in hemodialysis (HD), but anticoagulation is problematic in inpatients at risk of bleeding. We prospectively evaluated a heparin-avoidance HD protocol, clotting of the EC circuit (CEC), impact on dialysis efficiency, and associated risk factors in our acute care inpatients who required HD (January 17, 2014 to May 31, 2015). Methods: HD sessions without routine EC heparin were performed using airless dialysis tubing...
July 2017: KI Reports
https://www.readbyqxmd.com/read/29142884/ldl-cholesterol-measurement-in-diabetic-type-2-patients-a-comparison-between-direct-assay-and-popular-equations
#19
Farideh Razi, Katayoon Forouzanfar, Fatemeh Bandarian, Ensieh Nasli-Esfahani
Background: Low density lipoprotein -Cholesterol (LDL-C) is one of the main factors for assessment of cardiovascular disease risk and it is more important in diabetic patients. Various methods are currently used for LDL-C measurements which are compared in this study. Methods: This study was conducted in Diabetes Research Center based on laboratory results of 1721 diabetic patients who referred to laboratory for regular follow-up of lipid profile. LDL-C was measured directly and also estimated according to Friedwald, Anandraja and Chen formulas...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/29142143/dha-supplementation-improves-cognitive-function-via-enhancing-a%C3%AE-mediated-autophagy-in-chinese-elderly-with-mild-cognitive-impairment-a-randomised-placebo-controlled-trial
#20
Yan-Ping Zhang, Yinyin Lou, Jing Hu, Rujuan Miao, Fei Ma
BACKGROUND: Higher docosahexaenoic acid (DHA) intake is inversely correlated with relative risk of Alzheimer's disease. The potential benefits of DHA supplementation in people with mild cognitive impairment (MCI) have not been fully examined. OBJECTIVE: Our study aimed to assess the effect of a 24-month DHA supplementation on cognitive function and amyloid beta (Aβ)-mediated autophagy in elderly subjects with MCI. METHODS: This was a randomised, double-blind, placebo-controlled trial in Tianjin, China...
November 15, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
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