Visualizing Beta Cells After Bariatric Surgery
Type 2 Diabetes MellitusIn order to evaluate the difference in beta cell mass in patients with and without complete resolution of type 2 diabetes mellitus (T2DM) after Roux en Y gastric bypass (RYGB) investigators aim to compare quantitative PET imaging of the pancreas between these patient groups. These highly relevant data will provide investigators with more information on the possible role of beta cell mass in the mechanisms behind resolution of T2DM after bariatric surgery. This would be of great interest for the assessment of RYGB as an alternative therapy in patients with T2DM with a BMI <35, who currently do not meet the international guidelines for bariatric surgery.
Osteoprosis in Type 2 Diabetic Patients- a Cohort Study
Type 2 Diabetes MellitusOsteoporosisSome possible humoural and cellular mechanism for diabetes related osteoporosis/fractures were proposed and summarzied as the following, (1)Diabetes mellitus increases osteoclast function but decreases osteoblast function, thereby leading to accelerated bone loss, osteopenia and osteoporosis. (2)DM/hyperglycemia induces production of macrophage colony stimulating factor (MCSF), tumor necrosis factor (TNF)-α and receptor activator of nuclear factor-κB ligand (RANKL), all of which are osteoblast-derived activators of osteoclast proliferation and differentiation. (3) DM/hyperglycemia suppresses osteoblast proliferation and function, in part, by decreasing runtrelated transcription factor (Runx)-2, osteocalcin and osteopontin expressions. (4)Adipogenic differentiation of mesenchymal stem cells is increased as indicated by the overexpression of adipocyte differentiation markers, including peroxisome proliferator-activated receptor (PPAR)-g, adipocyte fatty acid binding protein (aP2), adipsin and resistin. A decrease in neovascularization may further aggravate bone loss. (5)Bone quality is also reduced as a result of advanced glycation end products (AGE) production, which may eventually result in low impact or fragility fractures. DM are associated osteoporosis/fracture. The underlying mechanism, especially of type 2 DM, mandates a DM-osteoporosis cohort to elucidate. In clinical practice, to developed preventive strategies from osteoporotic-fracture is also necessary.
Affect of Incentive Strategy on the Adherence to Medication Among Patients With Type 2 Diabetes...
Type 2 DiabetesBased on patients' HbA1c improvement, this study aims to establish an incentive strategy to family physicians and patients respectively to evaluate the affect on the adherence to medication among patients with type2 diabetes.
Meta-analysis in Post-marketing Surveillances for SGLT2 Inhibitors in Patients With Type 2 Diabetes...
Diabetes MellitusType 2The purpose of this study is to integrate the post-marketing surveillances data (Specified use-results surveys on long-term treatment) of the 6 SGLT2 inhibitors approved or applied in Japan and to evaluate the safety and efficacy of long-term use of each under actual clinical practice conditions. In each post-marketing surveillance, 3000 patients who complete a 3 years treatment are enrolled. A total of 18000 patients are assessed in the meta-analysis.
Effect of Incretin-related Drugs on Dietary Intake in Japanese Patients With Type 2 Diabetes Mellitus...
Type 2 Diabetes MellitusIt is well known that incretin, particular GLP-1enhances satiety and reduces energy intake in controlling appetite and dietary in humans (Flint A, et al. Gutzwiller JP et al.). Recently, incretin-based therapy has been attracted a lot of interest (Hare KJ, Knop FK). However, it is not clear how the incretin-based therapy affects energy and content of dietary intake in patients with type 2 diabetes mellitus (T2DM). Previously, the investigators reported the amount of energy and content of dietary intake in type 2 diabetic Japanese patients with more than 10 years of long time duration after discovery using questionnaire (Inoue K et al.) and the patients were impaired a secretion of active GLP-1 (Kamoi et al). The investigators examine whether the incretin-based therapy effects on the energy and content of dietary intake in the same patients before and one year after administration of incretin-related drugs using the same method previously (Inoue K et al.).
Gene Expression Profiling and Bioinformatic Analysis Identifying Genes and Biochemical Pathways...
Type 2 DiabetesType 2 diabetes is a disorder of the metabolic system that greatly affects individual health and imposes significant cost for society on health care. It is necessary to initiate research with emphasis on improvement on quality of life and reduce the serious complications as a result of type 2 diabetes. In type 2 diabetes insulin resistance and impairment of insulin secretion by beta-cells are the major pathophysiological defects and characterized by raised plasma glucose levels. Today, little is known about gene regulation and biochemical pathways involved in the disease. Bioinformatics and gene expression microarrays (GEM) will be applied to gain insight into the molecular pathophysiology of type 2 diabetes. The simultaneous monitoring of thousands of genes in parallel can identify novel genes and entire biochemical pathways that are dysregulated at the transcriptional level. Affymetrix Inc. chips or spotted arrays will be applied as DNA microarray tools. Bioinformatic software programs and databases will be employed as data mining tools in order to perform statistical analysis, cluster analysis and biochemical pathway analysis. Biopsies from skeletal muscle and adipose tissue from both diabetics and nondiabetics will be applied. Changes in genes and biochemical pathways between diabetics and nondiabetics and functional relationships between adipose tissue and skeletal muscle will be investigated. Grouping of subtypes in type 2 diabetes will be performed and a classification system will be constructed. Building a classifier may provide better and more precise diagnosis of type 2 diabetes. Major advances in health science of type 2 diabetes thus seems to be promising and paving the way for individual treatment based on a more precise diagnosis.
Medication Use Among American Indians Adults
Type 2 DiabetesMedication AdherenceThe goal of this study is to explore facilitators of and barriers to medication adherence within the context of local social determinants of health (SDOH) that are not available in the EHR. for American Indians with type 2 diabetes. The main aim is: Identify facilitators of and barriers to medication adherence within the context of SDOH, Electronic Health Record (EHR) derived medication adherence [HbA1c < 7 (at target); HbA1c >7% to ≤9% (above target); and HbA1c > 9% (uncontrolled)].
A Study of Glucose Control in Participants With Type 1 and Type 2 Diabetes
Type 1 DiabetesType 2 DiabetesThe main purpose of this study is to determine whether combining meal, glucose and insulin data in a web-based system will improve management of type 1 (T1D) and type 2 diabetes (T2D). No study drug will be given. The study will last about 18 weeks.
Changes in Incretins Response and Glycemic Control After Gastric Bypass Surgery in Type 2 Diabetic...
Type 2 DiabetesObesityThe purpose of this study is to determine the early changes in gut hormonal, and other metabolites with known relations to the glycemic homeostasis. The study mainly focus on these responses to food in the diabetic patient, compared to the non-diabetic, after gastric bypass surgery. Also aiming for recording changes in the earliest postoperative phase.
Regional Fatty Acid Metabolism in Humans
Diabetes MellitusType 2There are several studies looking at how dietary fat is metabolized by humans. We give special meals and collect blood, breath, urine and fat samples to study how people burn and store dietary fat.