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Diabetes algorithm

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https://www.readbyqxmd.com/read/28227852/non-linear-dynamic-modeling-of-glucose-in-type-1-diabetes-with-kernel-adaptive-filters
#1
Eleni I Georga, Jose C Principe, Demosthenes Polyzos, Dimitrios I Fotiadis, Eleni I Georga, Jose C Principe, Demosthenes Polyzos, Dimitrios I Fotiadis, Eleni I Georga, Demosthenes Polyzos, Jose C Principe, Dimitrios I Fotiadis
We propose a non-linear recursive solution to the problem of short-term prediction of glucose in type 1 diabetes. The Fixed Budget Quantized Kernel Least Mean Square (QKLMS-FB) algorithm is employed to construct a univariate model of subcutaneous glucose concentration, which: (i) handles nonlinearities by transforming the input space into a high-dimensional Reproducing Kernel Hilbert Space and, (ii) finds a sparse solution by retaining a representative subset of the training input vectors. The dataset comes from the continuous multi-day recordings of 15 type 1 patients in free-living conditions...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227258/electrocardiographic-waveforms-fitness-check-device-technique-for-sudden-cardiac-death-risk-screening
#2
O J Escalona, M Mendoza, O J Escalona, M Mendoza, O J Escalona, M Mendoza
A novel cardiac health device technique development for reliable, non-invasive and cost-effective heart screening in preventive cardiovascular healthcare is presented. In particular, identification of apparently healthy individuals involved in sports activities (particularly in the young, age <; 35 years) who may be at-risk of sudden-cardiac-death (SCD) is mainly focused here. Nevertheless, the same device technique may be prospectively extended for detecting cardiovascular abnormalities in children and adolescents with type1-diabetes, and also in detecting patients with Brugada syndrome...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227147/blood-glucose-level-prediction-based-on-support-vector-regression-using-mobile-platforms
#3
Maximilian P Reymann, Eva Dorschky, Benjamin H Groh, Christine Martindale, Peter Blank, Bjoern M Eskofier, Maximilian P Reymann, Eva Dorschky, Benjamin H Groh, Christine Martindale, Peter Blank, Bjoern M Eskofier
The correct treatment of diabetes is vital to a patient's health: Staying within defined blood glucose levels prevents dangerous short- and long-term effects on the body. Mobile devices informing patients about their future blood glucose levels could enable them to take counter-measures to prevent hypo or hyper periods. Previous work addressed this challenge by predicting the blood glucose levels using regression models. However, these approaches required a physiological model, representing the human body's response to insulin and glucose intake, or are not directly applicable to mobile platforms (smart phones, tablets)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226972/design-of-a-dual-hormone-model-predictive-control-for-artificial-pancreas-with-exercise-model
#4
Navid Resalat, Joseph El Youssef, Ravi Reddy, Peter G Jacobs, Navid Resalat, Joseph El Youssef, Ravi Reddy, Peter G Jacobs, Navid Resalat, Joseph El Youssef, Peter G Jacobs, Ravi Reddy
The Artificial Pancreas (AP) is a new technology for helping people with type 1 diabetes to better control their glucose levels through automated delivery of insulin and optionally glucagon in response to sensed glucose levels. In a dual hormone AP, insulin and glucagon are delivered automatically to the body based on glucose sensor measurements using a control algorithm that calculates the amount of hormones to be infused. A dual-hormone MPC may deliver insulin continuously; however, it must avoid continuous delivery of glucagon because nausea can occur from too much glucagon...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226770/a-multiscale-model-based-analysis-of-the-multi-tissue-interplay-underlying-blood-glucose-regulation-in-type-i-diabetes
#5
Federico Wadehn, Stephan Schaller, Thomas Eissing, Markus Krauss, Lars Kupfer, Federico Wadehn, Stephan Schaller, Thomas Eissing, Markus Krauss, Lars Kupfer, Federico Wadehn, Markus Krauss, Lars Kupfer, Stephan Schaller, Thomas Eissing
A multiscale model for blood glucose regulation in diabetes type I patients is constructed by integrating detailed metabolic network models for fat, liver and muscle cells into a whole body physiologically-based pharmacokinetic/pharmacodynamic (pBPK/PD) model. The blood glucose regulation PBPK/PD model simulates the distribution and metabolization of glucose, insulin and glucagon on an organ and whole body level. The genome-scale metabolic networks in contrast describe intracellular reactions. The developed multiscale model is fitted to insulin, glucagon and glucose measurements of a 48h clinical trial featuring 6 subjects and is subsequently used to simulate (in silico) the influence of geneknockouts and drug-induced enzyme inhibitions on whole body blood glucose levels...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226763/detection-of-diabetic-foot-hyperthermia-by-using-a-regionalization-method-based-on-the-plantar-angiosomes-on-infrared-images
#6
Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello, Y Liu, A Polo, M Zequera, R Harba, R Canals, L Vilcahuaman, Y Bello, A Polo, M Zequera, Y Liu, Y Bello, R Canals, L Vilcahuaman, R Harba
Prevention of serious diabetic foot complication like ulceration or infection is an important issue. As the development of thermal graphic technologies, foot temperature-guided avoidance therapy has been recommended. Doctors from Hospital National Dos de Mayo are studying on the risk of the diabetic foot passing from Grade 0 to Grade 1 in the Wagner Scale. This risk to develop ulcers is related to the temperature difference of corresponding area between left and right foot. Generally speaking, the diabetic foot with greater mean temperature difference has more potential to develop ulcers; especially, area whose temperature difference of more than 2...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226751/deep-neural-ensemble-for-retinal-vessel-segmentation-in-fundus-images-towards-achieving-label-free-angiography
#7
A Lahiri, Abhijit Guha Roy, Debdoot Sheet, Prabir Kumar Biswas, A Lahiri, Abhijit Guha Roy, Debdoot Sheet, Prabir Kumar Biswas, Debdoot Sheet, Prabir Kumar Biswas, A Lahiri
Automated segmentation of retinal blood vessels in label-free fundus images entails a pivotal role in computed aided diagnosis of ophthalmic pathologies, viz., diabetic retinopathy, hypertensive disorders and cardiovascular diseases. The challenge remains active in medical image analysis research due to varied distribution of blood vessels, which manifest variations in their dimensions of physical appearance against a noisy background. In this paper we formulate the segmentation challenge as a classification task...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223842/development-of-a-novel-algorithm-to-determine-adherence-to-chronic-pain-treatment-guidelines-using-administrative-claims
#8
Jay M Margolis, Nicole Princic, David M Smith, Lucy Abraham, Joseph C Cappelleri, Sonali N Shah, Peter W Park
OBJECTIVE: To develop a claims-based algorithm for identifying patients who are adherent versus nonadherent to published guidelines for chronic pain management. METHODS: Using medical and pharmacy health care claims from the MarketScan® Commercial and Medicare Supplemental Databases, patients were selected during July 1, 2010, to June 30, 2012, with the following chronic pain conditions: osteoarthritis (OA), gout (GT), painful diabetic peripheral neuropathy (pDPN), post-herpetic neuralgia (PHN), and fibromyalgia (FM)...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28222391/a-clinically-applicable-non-invasive-method-to-quantitatively-assess-the-visco-hyperelastic-properties-of-human-heel-pad-implications-for-assessing-the-risk-of-mechanical-trauma
#9
Sara Behforootan, Panagiotis E Chatzistergos, Nachiappan Chockalingam, Roozbeh Naemi
INTRODUCTION: Pathological conditions such as diabetic foot and plantar heel pain are associated with changes in the mechanical properties of plantar soft tissue. However, the causes and implications of these changes are not yet fully understood. This is mainly because accurate assessment of the mechanical properties of plantar soft tissue in the clinic remains extremely challenging. PURPOSE: To develop a clinically viable non-invasive method of assessing the mechanical properties of the heel pad...
February 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28221823/evaluation-of-a-predictive-low-glucose-management-system-in-clinic
#10
Bruce A Buckingham, Timothy S Bailey, Mark Christiansen, Satish Garg, Stuart Weinzimer, Bruce Bode, Stacey M Anderson, Ron Brazg, Trang Ly, Francine R Kaufman
BACKGROUND: Predictions based on continuous glucose monitoring (CGM) data are the basis for automatic suspension and resumption of insulin delivery by a predictive low-glucose management feature termed "suspend before low," which is part of the Medtronic MiniMed(®) 640G combined insulin pump and CGM system. This study assessed the safety and performance characteristics of the system in an in-clinic setting at eight sites. MATERIALS AND METHODS: In-clinic standardized increases in basal insulin delivery rates were used to induce nocturnal hypoglycemia in subjects (14-75 years) with type 1 diabetes wearing the MiniMed 640G system...
February 16, 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28217714/dr-hagis-a-fundus-image-database-for-the-automatic-extraction-of-retinal-surface-vessels-from-diabetic-patients
#11
Sven Holm, Greg Russell, Vincent Nourrit, Niall McLoughlin
A database of retinal fundus images, the DR HAGIS database, is presented. This database consists of 39 high-resolution color fundus images obtained from a diabetic retinopathy screening program in the UK. The NHS screening program uses service providers that employ different fundus and digital cameras. This results in a range of different image sizes and resolutions. Furthermore, patients enrolled in such programs often display other comorbidities in addition to diabetes. Therefore, in an effort to replicate the normal range of images examined by grading experts during screening, the DR HAGIS database consists of images of varying image sizes and resolutions and four comorbidity subgroups: collectively defined as the diabetic retinopathy, hypertension, age-related macular degeneration, and Glaucoma image set (DR HAGIS)...
January 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28215227/elucidating-the-mutational-landscape-in-hepatocyte-nuclear-factor-1%C3%AE-hnf1b-by-computational-approach
#12
P Sneha, C G P Doss
Transcription factors are the major gene-regulatory proteins that recognize specific nucleotide sequences and bind to them. Missense mutations in transcription factors play a significant role in misregulation of gene expression contributing to various diseases and disorders. Understanding their structural and functional impact of the disease-causing mutations becomes prime importance in treating a disease. Commonly associated defect with the mutations of hepatocyte nuclear factor 1 beta (HNF1B) protein, a transcription factor results in maturity-onset diabetes of the young-5 (MODY-5) leading to loss of function...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28197794/therapeutic-options-in-refractory-diabetic-macular-oedema
#13
Sanket U Shah, Raj K Maturi
Diabetic macular oedema (DMO) results from alterations of several biochemical pathways in diabetic eyes. Centre-involving DMO is an important cause of visual loss in diabetes. Anti-vascular endothelial growth factor agents are now the mainstay of centre-involving DMO treatment. Oedema that does not achieve optimal response to these agents occurs in a sizeable proportion of eyes and is called refractory or persistent DMO. Management of refractory DMO is challenging. In this paper, the pathophysiology of DMO, and the definitions used in various studies are summarised...
February 15, 2017: Drugs
https://www.readbyqxmd.com/read/28196240/metabolic-surgery-in-the-treatment-algorithm-for-type-2-diabetes-a-joint-statement-by-international-diabetes-organizations
#14
Juan P Brito, Victor M Montori, Andrew M Davis
No abstract text is available yet for this article.
February 14, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28190527/assessing-quality-of-life-in-diabetes-ii-deconstructing-measures-into-a-simple-framework
#15
REVIEW
Tricia S Tang, Fardowsa L A Yusuf, William H Polonsky, Lawrence Fisher
A growing number of instruments measuring diabetes-specific health-related quality of life (HRQOL) have been identified in previous systematic reviews, the most recent being published in 2008. The purpose of this paper is report on an updated systematic review of diabetes-specific HRQOL measures highlighting the time period 2006-2016; to deconstruct existing diabetes-specific HRQOL measures into a simple framework for evaluating the goodness-of-fit between specific research needs and instrument characteristics; and to present core characteristics of measures not yet reported in other reviews to further facilitate scale selection...
October 26, 2016: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28187898/vessel-segmentation-and-microaneurysm-detection-using-discriminative-dictionary-learning-and-sparse-representation
#16
Malihe Javidi, Hamid-Reza Pourreza, Ahad Harati
Diabetic retinopathy (DR) is a major cause of visual impairment, and the analysis of retinal image can assist patients to take action earlier when it is more likely to be effective. The accurate segmentation of blood vessels in the retinal image can diagnose DR directly. In this paper, a novel scheme for blood vessel segmentation based on discriminative dictionary learning (DDL) and sparse representation has been proposed. The proposed system yields a strong representation which contains the semantic concept of the image...
February 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28182137/comment-on-an-algorithm-for-identification-and-classification-of-individuals-with-type-1-and-type-2-diabetes-mellitus-in-a-large-primary-care-database-written-by-sharma-et-al
#17
https://www.readbyqxmd.com/read/28178626/reference-genes-for-quantitative-pcr-in-the-adipose-tissue-of-mice-with-metabolic-disease
#18
Fernanda Almeida-Oliveira, João G B Leandro, Priscila Ausina, Mauro Sola-Penna, David Majerowicz
Obesity and diabetes are metabolic diseases and they are increasing in prevalence. The dynamics of gene expression associated with these diseases is fundamental to identifying genes involved in related biological processes. qPCR is a sensitive technique for mRNA quantification and the most commonly used method in gene-expression studies. However, the reliability of these results is directly influenced by data normalization. As reference genes are the major normalization method used, this work aims to identify reference genes for qPCR in adipose tissues of mice with type-I diabetes or obesity...
February 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28168812/optical-coherence-tomography-angiography-of-macular-telangiectasia-type-1-comparison-with-mild-diabetic-macular-edema
#19
Lei Mao, Si-Si Weng, Yuan-Yuan Gong, Su-Qin Yu
OBJECTIVE: The present study aimed to investigate the characteristics of macular telangiectasia type 1 (Mac tel type 1) using spectral-domain optical coherence tomography angiography (OCTA) and compare them with the characteristics of mild diabetic macular edema (DME), to provide a new objective method for quick clinical diagnosis and treatment. METHODS: A retrospective comparative analysis of 9 Mac tel type 1, 15 DME, and 15 normal eyes was performed using fluorescein angiography, spectral-domain optical coherence tomography, and OCTA...
February 7, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28159822/beta-blocker-use-is-associated-with-impaired-left-atrial-function-in-hypertension
#20
Mayank Sardana, Amer Ahmed Syed, Zeba Hashmath, Timothy S Phan, Maheswara R Koppula, Uzma Kewan, Zoubair Ahmed, Ravikantha Chandamuri, Swapna Varakantam, Ejaz Shah, Ryan Gorz, Scott R Akers, Julio A Chirinos
BACKGROUND: Impaired left atrial (LA) mechanical function is present in hypertension and likely contributes to various complications, including atrial arrhythmias, stroke, and heart failure. Various antihypertensive drug classes exert differential effects on central hemodynamics and left ventricular function. However, little is known about their effects on LA function. METHODS AND RESULTS: We studied 212 subjects with hypertension and without heart failure or atrial fibrillation...
February 3, 2017: Journal of the American Heart Association
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