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Noise and diabet

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https://www.readbyqxmd.com/read/28604634/modeling-the-error-of-the-medtronic-paradigm-veo-enlite-glucose-sensor
#1
Lyvia Biagi, Charrise M Ramkissoon, Andrea Facchinetti, Yenny Leal, Josep Vehi
Continuous glucose monitors (CGMs) are prone to inaccuracy due to time lags, sensor drift, calibration errors, and measurement noise. The aim of this study is to derive the model of the error of the second generation Medtronic Paradigm Veo Enlite (ENL) sensor and compare it with the Dexcom SEVEN PLUS (7P), G4 PLATINUM (G4P), and advanced G4 for Artificial Pancreas studies (G4AP) systems. An enhanced methodology to a previously employed technique was utilized to dissect the sensor error into several components...
June 12, 2017: Sensors
https://www.readbyqxmd.com/read/28584317/exposure-to-self-reported-occupational-noise-and-diabetes-a-cross-sectional-relationship-in-7th-european-social-survey-ess7-2014
#2
Angel Mario Dzhambov
OBJECTIVES: Almost nothing is known about the effect of occupational noise on diabetes, and this is particularly relevant given the wide spread of both noise exposure and diabetes. This study has aimed to determine whether occupational noise exposure is associated with higher risk of diabetes in Europe. MATERIAL AND METHODS: This study is based on 7th European Social Survey (ESS7, 2014) - a multi-country population-based questionnaire survey, which covered 28 221 Europeans aged ≥ 15 years old...
April 14, 2017: International Journal of Occupational Medicine and Environmental Health
https://www.readbyqxmd.com/read/28560245/assistive-lesion-emphasis-system-an-assistive-system-for-fundus-image-readers
#3
Samrudhdhi B Rangrej, Jayanthi Sivaswamy
Computer-assisted diagnostic (CAD) tools are of interest as they enable efficient decision-making in clinics and the screening of diseases. The traditional approach to CAD algorithm design focuses on the automated detection of abnormalities independent of the end-user, who can be an image reader or an expert. We propose a reader-centric system design wherein a reader's attention is drawn to abnormal regions in a least-obtrusive yet effective manner, using saliency-based emphasis of abnormalities and without altering the appearance of the background tissues...
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28553744/relationship-between-dietary-quality-tinnitus-and-hearing-level-data-from-the-national-health-and-nutrition-examination-survey-1999-2002
#4
Christopher Spankovich, Charles Bishop, Mary Frances Johnson, Alex Elkins, Dan Su, Edward Lobarinas, Colleen G Le Prell
OBJECTIVE: To examine the relationship between the healthy eating index (HEI), a measure of dietary quality based on United States Department of Agriculture recommendations and report of tinnitus. DESIGN: This cross-sectional analysis was based on HEI data and report of tinnitus. STUDY SAMPLE: Data for adults between 20 and 69 years of age were drawn from the National Health and Nutrition Examination Survey (NHANES), 1999-2002. The NHANES is a programme of studies, to assess the health and nutritional status of adults and children in the United States...
May 27, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28521190/simultaneous-determination-of-bisphenol-a-and-estrogens-in-hair-samples-by-liquid-chromatography-electrospray-tandem-mass-spectrometry
#5
Chaelin Lee, Chong Hyeak Kim, Sunghwan Kim, Sung-Hee Cho
Bisphenol A (BPA), an endocrine disrupter, is widely used to make chemicals for polycarbonate, plastics, beverage containers, epoxy resins, and cash register receipts. BPA is one of the known xenoestrogens, which have weak estrogenic activity and cause obesity, diabetes, breast cancer, and reproductive disorders. Even though the concentration level of metabolomes in hair is usually lower than that in urine and blood, there are several reasons why we chose to use hair samples. First, the sampling procedure of hairs is simple...
May 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28470000/input-estimation-for-extended-release-formulations-exemplified-with-exenatide
#6
Magnus Trägårdh, Michael J Chappell, Johan E Palm, Neil D Evans, David L I Janzén, Peter Gennemark
Estimating the in vivo absorption profile of a drug is essential when developing extended-release medications. Such estimates can be obtained by measuring plasma concentrations over time and inferring the absorption from a model of the drug's pharmacokinetics. Of particular interest is to predict the bioavailability-the fraction of the drug that is absorbed and enters the systemic circulation. This paper presents a framework for addressing this class of estimation problems and gives advice on the choice of method...
2017: Frontiers in Bioengineering and Biotechnology
https://www.readbyqxmd.com/read/28410120/snp_tata_comparator-genomewide-landmarks-for-preventive-personalized-medicine
#7
REVIEW
Mikhail Ponomarenko, Dmitry Rasskazov, Irina Chadaeva, Ekaterina Sharypova, Petr Ponomarenko, Olga Arkova, Elena Kashina, Nikita Ivanisenko, Dmitry Zhechev, Ludmila Savinkova, Nikolay Kolchanov
Year after year, conditions, quality, and duration of human lives have been improving due to the progress of science, technology, education, and medicine, which however has a downside. Owing to improvement in children's nutrition, developmental acceleration occurs that imbalances a child's system. Because of virtual worlds of the Internet, social experience of teenagers expands and clashes with puberty of adolescents. Due to the comfort of cities, urbanization emerges and causes stress to adults because of artificial light, noise, pollution, violations of personal space, and family disruption...
June 1, 2017: Frontiers in Bioscience (Scholar Edition)
https://www.readbyqxmd.com/read/28403870/noise-sensitivity-rather-than-noise-level-predicts-the-non-auditory-effects-of-noise-in-community-samples-a-population-based-survey
#8
Jangho Park, Seockhoon Chung, Jiho Lee, Joo Hyun Sung, Seung Woo Cho, Chang Sun Sim
BACKGROUND: Excessive noise affects human health and interferes with daily activities. Although environmental noise may not directly cause mental illness, it may accelerate and intensify the development of latent mental disorders. Noise sensitivity (NS) is considered a moderator of non-auditory noise effects. In the present study, we aimed to assess whether NS is associated with non-auditory effects. METHODS: We recruited a community sample of 1836 residents residing in Ulsan and Seoul, South Korea...
April 12, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28384126/an-automated-method-for-accurate-vessel-segmentation
#9
Xin Yang, Chaoyue Liu, Hung Le Minh, Zhiwei Wang, Aichi Chien, Kwang-Ting Tim Cheng
Vessel segmentation is a critical task for various medical applications, such as diagnosis assistance of diabetic retinopathy, quantification of cerebral aneurysm's growth, and guiding surgery in neurosurgical procedures. Despite technology advances in image segmentation, existing methods still suffer from low accuracy for vessel segmentation in the two challenging while common scenarios in clinical usage: (1) regions with a low signal-to-noise-ratio (SNR), and (2) at vessel boundaries disturbed by adjacent non-vessel pixels...
April 6, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28346907/long-term-associations-of-modeled-and-self-reported-measures-of-exposure-to-air-pollution-and-noise-at-residence-on-prevalent-hypertension-and-blood-pressure
#10
Anitha Pitchika, Regina Hampel, Kathrin Wolf, Ute Kraus, Josef Cyrys, Wolfgang Babisch, Annette Peters, Alexandra Schneider
Air pollution, traffic noise and noise annoyance are suggested to be associated with hypertension and blood pressure (BP); however, the evidence remains inconsistent. Our study examined the long-term associations of modeled and self-reported measures of air pollution and traffic noise on prevalent hypertension and BP. We analyzed cross-sectional data from 2552 participants aged 31-72years from the KORA F4 (2006-2008) study conducted in the region of Augsburg, Germany. Land-use regression models were used to estimate residential long-term exposure to particulate matter <2...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28338949/long-term-exposure-to-transportation-noise-and-air-pollution-in-relation-to-incident-diabetes-in-the-sapaldia-study
#11
Ikenna C Eze, Maria Foraster, Emmanuel Schaffner, Danielle Vienneau, Harris Héritier, Franziska Rudzik, Laurie Thiesse, Reto Pieren, Medea Imboden, Arnold von Eckardstein, Christian Schindler, Mark Brink, Christian Cajochen, Jean-Marc Wunderli, Martin Röösli, Nicole Probst-Hensch
Background: Epidemiological studies have inconsistently linked transportation noise and air pollution (AP) with diabetes risk. Most studies have considered single noise sources and/or AP, but none has investigated their mutually independent contributions to diabetes risk. Methods: We investigated 2631 participants of the Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults (SAPALDIA), without diabetes in 2002 and without change of residence between 2002 and 2011...
March 13, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28326795/digital-health-care-by-in-silico-glycation-of-hba1-blood-cells
#12
James M Minor, Leslie M Rickey, Richard M Bergenstal
BACKGROUND: Diabetes health care relies on the HbA1c (A1c) assay and associated average glucose (AG) to evaluate and control chronic glycemia. However, the A1c assay is plagued with significant noise, lag time, and specificity issues. Current studies support the significant health care advantage of clinical action based on real-time blood glucose (BG) metrics. We seek to improve diabetes management by directly relating such metrics to AG levels as mediated by recently discovered recurrent endocrine cycles...
March 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28268574/classification-of-sd-oct-volumes-with-multi-pyramids-lbp-and-hog-descriptors-application-to-dme-detections
#13
Khaled Alsaih, Guillaume Lemaitre, Join Massich Vall, Mojdeh Rastgoo, Desire Sidibe, Tien Y Wong, Ecosse Lamoureux, Dan Milea, Carol Y Cheung, Fabrice Meriaudeau
This paper deals with the automated detection of Diabetic Macular Edema (DME) on Optical Coherence Tomography (OCT) volumes. Our method considers a generic classification pipeline with preprocessing for noise removal and flattening of each B-Scan. Features such as Histogram of Oriented Gradients (HOG) and Local Binary Patterns (LBP) are extracted and combined to create a set of different feature vectors which are fed to a linear-Support Vector Machines (SVM) Classifier. Experimental results show a promising sensitivity/specificity of 0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226752/classification-of-sd-oct-volumes-with-multi-pyramids-lbp-and-hog-descriptors-application-to-dme-detections
#14
Khaled Alsaih, Guillaume Lemaitre, Join Massich Vall, Mojdeh Rastgoo, Desire Sidibe, Tien Y Wong, Ecosse Lamoureux, Dan Milea, Carol Y Cheung, Fabrice Meriaudeau, Khaled Alsaih, Guillaume Lemaitre, Join Massich Vall, Mojdeh Rastgoo, Desire Sidibe, Tien Y Wong, Ecosse Lamoureux, Dan Milea, Carol Y Cheung, Fabrice Meriaudeau, Guillaume Lemaitre, Dan Milea, Carol Y Cheung, Desire Sidibe, Ecosse Lamoureux, Join Massich Vall, Mojdeh Rastgoo, Fabrice Meriaudeau, Tien Y Wong, Khaled Alsaih
This paper deals with the automated detection of Diabetic Macular Edema (DME) on Optical Coherence Tomography (OCT) volumes. Our method considers a generic classification pipeline with preprocessing for noise removal and flattening of each B-Scan. Features such as Histogram of Oriented Gradients (HOG) and Local Binary Patterns (LBP) are extracted and combined to create a set of different feature vectors which are fed to a linear-Support Vector Machines (SVM) Classifier. Experimental results show a promising sensitivity/specificity of 0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226026/diabetes-mellitus-and-sensorineural-hearing-loss-is-there-an-association-baseline-of-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil
#15
Alessandra G Samelli, Itamar S Santos, Renata R Moreira, Camila M Rabelo, Laurie P Rolim, Isabela J Bensenõr, Paulo A Lotufo
OBJECTIVES: Although several studies have investigated the effects of diabetes on hearing loss, the relationship between these two conditions remains unclear. Some studies have suggested that diabetes may cause sensorineural hearing loss, whereas others have failed to find an association. The biggest challenge in investigating the association between diabetes and hearing loss is the presence of confounding variables and the complexity of the auditory system. Our study investigated the association between diabetes and sensorineural hearing loss...
January 1, 2017: Clinics
https://www.readbyqxmd.com/read/28193044/engineered-iro2-nio-core-shell-nanowires-for-sensitive-non-enzymatic-detection-of-trace-glucose-in-saliva
#16
Junjun Wang, Lin Xu, Yang Lu, Kuang Sheng, Wei Liu, Cong Chen, Yang Li, Biao Dong, Hongwei Song
Hierarchical core-shell IrO2@NiO nanowires (NWs) have been designed through two simple steps, which combined electrospinning of IrO2 conductive core and chemical bath deposition growth of ultracontinuous NiO nanoflakes. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy-dispersive X-ray spectrometry mapping, and X-ray photoelectron spectroscopy were employed to characterize the morphologies and structures of the as-prepared samples, and the results were also carefully compared with that of pure NiO nanoflowers and IrO2 NWs...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28188327/tactile-stimuli-affect-long-range-correlations-of-stride-interval-and-stride-length-differently-during-walking
#17
Jung Hung Chien, V N Pradeep Ambati, Chun-Kai Huang, Mukul Mukherjee
Sensory feedback below the sole of the foot using sub-threshold mechanical noise significantly reduced postural sway in patients with diabetes and stroke. However, the effects of tactile parameters on walking are still elusive. Specifically, the effects of such parameters on human gait variability need to be studied because of possible rehabilitation outcomes in terms of bringing improvement in temporal and spatial gait parameters. The purpose of this study was to investigate whether different frequency and amplitude combinations of vibro-tactile stimulation of feet would affect stride-to-stride variability in healthy young adults...
April 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28107976/sensitive-fluorescent-detection-of-h2o2-and-glucose-in-human-serum-based-on-inner-filter-effect-of-squaric-acid-iron-iii-on-the-fluorescence-of-upconversion-nanoparticle
#18
Hongyu Chen, Aijin Fang, Li He, Youyu Zhang, Shouzhuo Yao
Diabetes mellitus is an epidemic disease that it has became a worldwide public health problem. Thus, blood glucose monitoring has attracted extensive attention. Here, we report a nanosensor based on inner filter effect (IFE) between upconversion nanoparticles (UCNPs) and squaric acid (SQA)-iron(III) for the highly sensitive and selective detection of glucose levels in human serum. In this assay, GOx-catalyzed oxidization of glucose produces gluconic acid and hydrogen peroxide (H2O2). The latter can catalytically oxidize iron(II) to iron(III) which can rapidly (<1min) coordinate with the SQA to produce (SQA)-iron(III)...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28063388/nanostructured-biosensor-for-detecting-glucose-in-tear-by-applying-fluorescence-resonance-energy-transfer-quenching-mechanism
#19
Longyi Chen, Wai Hei Tse, Yi Chen, Matthew W McDonald, James Melling, Jin Zhang
In this paper, a nanostructured biosensor is developed to detect glucose in tear by using fluorescence resonance energy transfer (FRET) quenching mechanism. The designed FRET pair, including the donor, CdSe/ZnS quantum dots (QDs), and the acceptor, dextran-binding malachite green (MG-dextran), was conjugated to concanavalin A (Con A), an enzyme with specific affinity to glucose. In the presence of glucose, the quenched emission of QDs through the FRET mechanism is restored by displacing the dextran from Con A...
May 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27981066/blood-vessel-extraction-of-diabetic-retinopathy-using-optimized-enhanced-images-and-matched-filter
#20
Asit Subudhi, Subhra Pattnaik, Sukanta Sabut
Accurate extraction of structural changes in the blood vessels of the retina is an essential task in diagnosis of retinopathy. Matched filter (MF) technique is the effective way to extract blood vessels, but the effectiveness is reduced due to noisy images. The concept of MF and MF with first-order derivative of Gaussian (MF-FDOG) has been implemented for retina images of the DRIVE database. The optimized particle swarm optimization (PSO) algorithm is used for enhancing the images by edgels to improve the performance of filters...
October 2016: Journal of Medical Imaging
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