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Diabetes models

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https://www.readbyqxmd.com/read/28922582/relationship-between-optimum-mini-doses-of-glucagon-and-insulin-levels-when-treating-mild-hypoglycaemia-in-patients-with-type-1-diabetes-a-simulation-study
#1
Ajenthen Ranjan, Sabrina L Wendt, Signe Schmidt, Sten Madsbad, Jens J Holst, Henrik Madsen, Carsten B Knudsen, John B Jørgensen, Kirsten Nørgaard
Hypoglycaemia remains the main limiting factor in type 1 diabetes management. We developed an insulin-dependent glucagon dosing regimen for treatment of mild hypoglycaemia based on simulations. A validated glucose-insulin-glucagon model was used to describe seven virtual patients with insulin pump-treated type 1 diabetes. In each simulation, one of ten different and individualised subcutaneous insulin boluses was administered to decrease plasma glucose (PG) from 7.0 to ≤3.9 mmol/l. Insulin levels were estimated as ratio of actual to baseline serum insulin concentration (se/ba-insulin), insulin on board (IOB) or percentage of IOB to total daily insulin dose (IOB/TDD)...
September 18, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28922378/relationships-of-orientation-discrimination-threshold-and-visual-acuity-with-macular-lesions-in-age-related-macular-degeneration
#2
Haojie Fu, Bin Zhang, Jianliang Tong, Harold Bedell, Hecheng Zhang, Yating Yang, Chaochao Nie, Yingdong Luo, Xiaoling Liu
PURPOSE: To measure visual acuity and metamorphopsia in patients with age-related macular degeneration (AMD) and to explore their relationship with macular lesions. METHODS: In this cross-sectional study, a total of 32 normal subjects (32 eyes) and 35 AMD patients (35 eyes) were recruited. They were categorized into 4 groups: normal, dry AMD, non-active wet AMD, and active wet AMD. Best-corrected visual acuity (BCVA) was measured using the Early Treatment Diabetic Retinopathy Study protocol...
2017: PloS One
https://www.readbyqxmd.com/read/28922296/trajectories-of-glycemic-change-in-a-national-cohort-of-adults-with-previously-controlled-type-2-diabetes
#3
Rozalina G McCoy, Che Ngufor, Holly K Van Houten, Brian Caffo, Nilay D Shah
BACKGROUND: Individualized diabetes management would benefit from prospectively identifying well-controlled patients at risk of losing glycemic control. OBJECTIVES: To identify patterns of hemoglobin A1c (HbA1c) change among patients with stable controlled diabetes. RESEARCH DESIGN: Cohort study using OptumLabs Data Warehouse, 2001-2013. We develop and apply a machine learning framework that uses a Bayesian estimation of the mixture of generalized linear mixed effect models to discover glycemic trajectories, and a random forest feature contribution method to identify patient characteristics predictive of their future glycemic trajectories...
September 15, 2017: Medical Care
https://www.readbyqxmd.com/read/28922161/comorbidity-analysis-between-alzheimer-s-disease-and-type-2-diabetes-mellitus-t2dm-based-on-shared-pathways-and-the-role-of-t2dm-drugs
#4
Reagon Karki, Alpha Tom Kodamullil, Martin Hofmann-Apitius
BACKGROUND: Various studies suggest a comorbid association between Alzheimer's disease (AD) and type 2 diabetes mellitus (T2DM) indicating that there could be shared underlying pathophysiological mechanisms. OBJECTIVE: This study aims to systematically model relevant knowledge at the molecular level to find a mechanistic rationale explaining the existing comorbid association between AD and T2DM. METHOD: We have used a knowledge-based modeling approach to build two network models for AD and T2DM using Biological Expression Language (BEL), which is capable of capturing and representing causal and correlative relationships at both molecular and clinical levels from various knowledge resources...
September 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28922087/preexisting-cardiovascular-risk-and-subsequent-heart-failure-among-non-hodgkin-lymphoma-survivors
#5
Talya Salz, Emily C Zabor, Peter de Nully Brown, Susanne Oksberg Dalton, Nirupa J Raghunathan, Matthew J Matasar, Richard Steingart, Andrew J Vickers, Peter Svenssen Munksgaard, Kevin C Oeffinger, Christoffer Johansen
Purpose The use of anthracycline chemotherapy is associated with heart failure (HF) among survivors of non-Hodgkin lymphoma (NHL). We aimed to understand the contribution of preexisting cardiovascular risk factors to HF risk among NHL survivors. Methods Using Danish registries, we identified adults diagnosed with aggressive NHL from 2000 to 2010 and sex- and age-matched general-population controls. We assessed HF from 9 months after diagnosis through 2012. We used Cox regression analysis to assess differences in risk for HF between survivors and general population controls...
September 18, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28921837/coronary-artery-bypass-grafting-versus-percutaneous-coronary-intervention-in-patients-with-non-insulin-treated-type-2-diabetes-mellitus-a-meta-analysis-of-randomized-controlled-trials
#6
Yushu Wang, Meiqin Wen, Junteng Zhou, Yucheng Chen, Qing Zhang
INTRODUCTION: The outcomes and prognosis of revascularization by either coronary artery bypass grafting (CABG) surgery or percutaneous coronary intervention (PCI) in patients with non-insulin treated type 2 diabetes mellitus (NITDM) have not yet been well established. METHODS: Randomized controlled trials (RCTs) were identified by searching Pubmed, EMBASE and Cochrane library from inception until May 2016. Heterogeneity was evaluated and the pooled hazard ratio (HR) was calculated using a fixed-effect model...
September 15, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28921834/the-role-of-pre-morbid-diabetes-on-developing-amyotrophic-lateral-sclerosis
#7
Fabrizio D'Ovidio, Angelo d'Errico, Paolo Carnà, Andrea Calvo, Giuseppe Costa, Adriano Chiò
BACKGROUND: The literature on the association between diabetes and Amyotrophic Lateral Sclerosis (ALS) counts a limited number of studies. This cohort study was developed in order to assess the role of diabetes on the risk of developing ALS. METHODS: The study population was represented by all residents in Turin (Italy) at the beginning of 1996, already present at 1991 Census, older than 14 years (n=727,977), followed up for ALS occurrence from 1998 to 2014. Presence of diabetes at baseline or during the follow-up was ascertained through two Piedmont regional sources: the Diabetes Registry and the ATC Drugs Prescriptions Archive...
September 18, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28921256/relation-between-different-measures-of-glycemic-exposure-and-microvascular-and-macrovascular-complications-in-patients-with-type-2-diabetes-mellitus-an-observational-cohort-study
#8
Rients P T van Wijngaarden, Jetty A Overbeek, Edith M Heintjes, Agata Schubert, Joris Diels, Huub Straatman, Ewout W Steyerberg, Ron M C Herings
INTRODUCTION: This retrospective cohort study investigated the relation between different measures of glycemic exposure and micro- and macrovascular complications among patients with type 2 diabetes. METHODS: The analysis included patients receiving oral antihyperglycemic agents between 1 January 2006 and 31 December 2014 from the General Practitioner Database from the PHARMO Database Network. All recorded HbA1c levels during follow-up were used to express glycemic exposure in four ways: index HbA1c, time-dependent HbA1c, exponential moving average (EMA) and glycemic burden...
September 18, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28920088/metabolic-and-transcriptomic-analysis-of-huntington-s-disease-model-reveal-changes-in-intracellular-glucose-levels-and-related-genes
#9
Gepoliano Chaves, Rıfat Emrah Özel, Namrata V Rao, Hana Hadiprodjo, Yvonne Da Costa, Zachary Tokuno, Nader Pourmand
Huntington's Disease (HD) is a neurodegenerative disorder caused by an expansion in a CAG-tri-nucleotide repeat that introduces a poly-glutamine stretch into the huntingtin protein (mHTT). Mutant huntingtin (mHTT) has been associated with several phenotypes including mood disorders and depression. Additionally, HD patients are known to be more susceptible to type II diabetes mellitus (T2DM), and HD mice model develops diabetes. However, the mechanism and pathways that link Huntington's disease and diabetes have not been well established...
August 2017: Heliyon
https://www.readbyqxmd.com/read/28920084/effects-of-methamphetamine-on-locomotor-activity-and-thalamic-gene-expression-in-leptin-deficient-obese-mice
#10
Betina González, Candela González, Verónica Bisagno, Francisco J Urbano
Leptin is an adipose-derived hormone that regulates energy balance. Leptin receptors are expressed in extrahypothalamic sites and several reports showed that leptin can influence feeding and locomotor behavior via direct actions on dopaminergic neurons. The leptin deficient mouse (ob/ob) has been used as an animal model of blunted leptin action, and presents with obesity and mild type 2 diabetes. We used ob/ob mice to study the effect of repeated 7-day methamphetamine (METH) administration analyzing locomotion, behavioral sensitization, and somatosensory thalamic mRNA expression of voltage-gated calcium channels and glutamatergic receptors using RT-PCR...
July 2017: Translational Brain Rhythmicity
https://www.readbyqxmd.com/read/28919795/type-2-diabetes-in-vietnam-a-cross-sectional-prevalence-based-cost-of-illness-study
#11
Nguyen Tu Dang Le, Luyen Dinh Pham, Trung Quang Vo
BACKGROUND: According to the International Diabetes Federation, total global health care expenditures for diabetes tripled between 2003 and 2013 because of increases in the number of people with diabetes as well as in the average expenditures per patient. This study aims to provide accurate and timely information about the economic impacts of type 2 diabetes mellitus (T2DM) in Vietnam. METHOD: The cost-of-illness estimates followed a prospective, prevalence-based approach from the societal perspective of T2DM with 392 selected diabetic patients who received treatment from a public hospital in Ho Chi Minh City, Vietnam, during the 2016 fiscal year...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/28919426/improving-glycemic-control-in-model-mice-with-type-2-diabetes-by-increasing-superoxide-dismutase-sod-activity-using-silk-fibroin-hydrolysate-sfh
#12
Harry Jung, Yoo Yeon Kim, Boyoung Kim, Hajin Nam, Jun Gyo Suh
Islet cell dysfunction in type 2 diabetes is primarily attributed to the increased apoptosis of pancreatic beta cells. Silk fibroin hydrolysate (SFH) has an effect on blood in type 2 diabetes model mice (C57BL/KsJ-db/db). However, its exact mechanism is unknown. The type 2 diabetes model mice were randomly divided into non-diabetic mice (ND), diabetic mice (DB), and diabetic mice treated with silk fibroin hydrolysate (DB-SFH). The results showed that SFH significantly decreased fasting blood glucose and hemoglobin A1c (HbA1c)...
September 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28919328/c-peptide-levels-and-the-risk-of-diabetes-and-pre-diabetes-among-chinese-women-with-gestational-diabetes
#13
Ping Yin, Ping Shao, Huikun Liu, Weiqin Li, Leishen Wang, Jing Wang, Shuang Zhang, Junhong Leng, Nan Li, Huiguang Tian, Xilin Yang, Zhijie Yu, Gang Hu
AIMS: To examine the association of connecting peptide (C-peptide) and the risks of postpartum diabetes and pre-diabetes among women with prior gestational diabetes. METHODS: A cross-sectional study of 1263 women with prior gestational diabetes was carried out at 1-5years after delivery in Tianjin, China. Logistic regression was used to assess the associations of C-peptide and the risks of diabetes and pre-diabetes. RESULTS: The multivariable-adjusted odds ratios based on different levels of C-peptide (0-33%, 34-66%, 67-90%, and >90% as C-peptide cutpoints) were 1...
August 17, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/28919263/single-cell-gene-expression-analysis-of-a-human-esc-model-of-pancreatic-endocrine-development-reveals-different-paths-to-%C3%AE-cell-differentiation
#14
Maja Borup Kjær Petersen, Ajuna Azad, Camilla Ingvorsen, Katja Hess, Mattias Hansson, Anne Grapin-Botton, Christian Honoré
The production of insulin-producing β cells from human embryonic stem cells (hESCs) in vitro represents a promising strategy for a cell-based therapy for type 1 diabetes mellitus. To explore the cellular heterogeneity and temporal progression of endocrine progenitors and their progeny, we performed single-cell qPCR on more than 500 cells across several stages of in vitro differentiation of hESCs and compared them with human islets. We reveal distinct subpopulations along the endocrine differentiation path and an early lineage bifurcation toward either polyhormonal cells or β-like cells...
September 8, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28919117/global-regional-and-national-incidence-prevalence-and-years-lived-with-disability-for-328-diseases-and-injuries-for-195-countries-1990-2016-a-systematic-analysis-for-the-global-burden-of-disease-study-2016
#15
(no author information available yet)
BACKGROUND: As mortality rates decline, life expectancy increases, and populations age, non-fatal outcomes of diseases and injuries are becoming a larger component of the global burden of disease. The Global Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016) provides a comprehensive assessment of prevalence, incidence, and years lived with disability (YLDs) for 328 causes in 195 countries and territories from 1990 to 2016. METHODS: We estimated prevalence and incidence for 328 diseases and injuries and 2982 sequelae, their non-fatal consequences...
September 16, 2017: Lancet
https://www.readbyqxmd.com/read/28919116/global-regional-and-national-age-sex-specific-mortality-for-264-causes-of-death-1980-2016-a-systematic-analysis-for-the-global-burden-of-disease-study-2016
#16
(no author information available yet)
BACKGROUND: Monitoring levels and trends in premature mortality is crucial to understanding how societies can address prominent sources of early death. The Global Burden of Disease 2016 Study (GBD 2016) provides a comprehensive assessment of cause-specific mortality for 264 causes in 195 locations from 1980 to 2016. This assessment includes evaluation of the expected epidemiological transition with changes in development and where local patterns deviate from these trends. METHODS: We estimated cause-specific deaths and years of life lost (YLLs) by age, sex, geography, and year...
September 16, 2017: Lancet
https://www.readbyqxmd.com/read/28918929/vitamin-d-receptor-targeted-treatment-to-prevent-pathological-dedifferentiation-of-pancreatic-%C3%AE-cells-under-hyperglycaemic-stress
#17
A Neelankal John, Z Iqbal, S Colley, G Morahan, M Makishima, F-X Jiang
Dedifferentiation has been identified as one of the causes of β-cell failure resulting in type 2 diabetes (T2D). This study tested whether increasing vitamin D receptor (VDR) expression prevents dedifferentiation of β cells in a high-glucose state in vitro. Culturing a mouse insulinoma cell line (MIN6) in a high-glucose environment decreased VDR expression. However, increased VDR following vitamin D3 (VD3) treatment improved insulin release of early-passage MIN6 and insulin index of db/- (heterozygous) islets to levels seen in normal functional islets...
September 11, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28918840/neuroprotective-effects-of-eexenatide-in-a-rotenone-induced-rat-model-of-parkinson-s-disease
#18
Dürdane Aksoy, Volkan Solmaz, Türker Çavuşoğlu, Ayfer Meral, Utku Ateş, Oytun Erbaş
BACKROUND: Several studies suggest an association between Parkinson's disease (PD) and type 2 diabetes mellitus; these 2 diseases are both known to affect the common molecular pathways. As a synthetic agonist for the glucagon-like peptide 1 receptor, exenatide has been evaluated as a neuroprotective agent in multiple animal models. Rotenone models of PD have great potential for the investigation of PD pathology and motor and nonmotor symptoms, as well as the role of gene-environment interactions in PD causation and pathogenesis...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28918587/genome-wide-association-studies-of-albuminuria-towards-genetic-stratification-in-diabetes
#19
REVIEW
Cristian Pattaro
Genome-wide association studies (GWAS) have been very successful in unraveling the polygenic structure of several complex diseases and traits. In the case of albuminuria, despite the large sample size achieved by some studies, results look sparse with a limited number of loci reported so far. This review searched for GWAS studies of albumin excretion, albuminuria, and proteinuria. The resulting picture sets elements of uniqueness for albuminuria GWAS with respect to other complex traits. So far, very few loci associated with albuminuria have been validated by means of genome-wide significant evidence or formal replication...
September 16, 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28918555/prognostic-factors-for-mortality-in-middle-aged-and-older-hemodialysis-patients-a-5-year-observational-study
#20
Kojiro Nagai, Motokazu Matsuura, Kenji Tsuchida, Hiro-Omi Kanayama, Toshio Doi, Jun Minakuchi
Clinical guidelines for hemodialysis therapy have been described in an evidence-based manner with most evidence from randomized control trials or retrospective studies in which all generations of the hemodialysis patients were enrolled. Therefore, the question still remains whether these guidelines can be applied to increasing older patients. This study is an observational study, including 735 patients who received maintenance hemodialysis in April 2006. At baseline, the participants' age was 62.1 ± 12...
September 16, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
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