View clinical trials related to Diabetes Mellitus, Type 2.
Filter by:The incidence of coronary heart disease (CHD) is significant in the super-obese and diabetics. Inflammation is believed to play an important part in the development of CHD, and the large collection of abdominal fat in the obese person is a vast source of inflammation. Diabetics have abnormal glucose and cholesterol metabolism which ultimately compromise their bodies' circulatory system and nerve function. Cholesterol plays a vital role in CHD. Low-density lipoprotein (LDL) particles carry cholesterol and deposit it in blood vessel walls which become damaged as a result. When LDL particles undergo changes chemically (called oxidation) or as a result of high circulating blood glucose (called glycation), they become more harmful to the body. High-density lipoprotein (HDL) particles have a protective function in CHD. Not only do they transport cholesterol away from the blood vessels to the liver to be broken down, they have properties against oxidation and inflammation. These properties are related to the activity of an enzyme on HDL called paraoxonase 1(PON1). Super-obese patients are increasingly treated by weight-reducing surgery (bariatric surgery). In this study we examine whether weight loss following bariatric surgery results in reduced inflammatory state, improved HDL function (higher PON1 activity), better control of blood glucose and less nerve damage. We will study PON1 activity, inflammation and glucose control in patients with type 1 diabetes (with and without kidney damage) and type 2 diabetes. We will also study the effects of rapidly rising blood glucose levels on PON1 and glycated LDL in patients undergoing oral glucose tolerance test.
T2DM has become a major health burden for our society. More and more data support the relative effectiveness of gastrointestinal metabolic surgery, known as bariatric surgery, in the remission of T2DM of BMI less35. The metabolic surgery guidelines of IDF recommend BMI over 27.5 in Asia. The evidence reviewed above strongly points to the need for a large randomized, controlled trial to evaluate the risks and benefits of obesity surgery in the treatment of type 2 diabetes Mellitus. This study is expected to provide very significant findings about the natural course of diabetes in obese diabetic patients.
The use of the Percutaneous Isolated Limb Procedure (PILP) which enables the use of existing antibiotic therapies in a more targeted and concentrated fashion in patients with diabetes who have a significant lower limb infection and it is deemed that IV antibiotics are needed in order to salvage the limb or life.
Study Hypotheses (Ho) and Research Questions (RQ): - Ho1. A Helping Hand (AHH) will significantly improve and sustain patient self-care management of depression and concurrent chronic illness management, Patient Assessment of Chronic Illness Care (PACIC) and Quality of Life vs UC at 6 and 12 months post-baseline. - Ho2. AHH will significantly improve patient depression treatment acceptance/adherence and depression symptoms vs UC at 6 and 12 months post-baseline. - RQ1. What is the association between depression symptoms and concurrent chronic illness status over time by group? - RQ2. Will AHH reduce hospitalizations and Emergency Room visits and improve clinic appointment-keeping? - RQ3. Will patient care satisfaction and reported barriers to self-care management vary by study group? - RQ4. What factors are identified via qualitative assessments of patients, promotoras, Department of Health Services (DHS) medical and social work providers, and DHS clinic/organizational leadership regarding satisfaction with, sustainable uptake of, and suggested modifications of the AHH promotora delivery model? - RQ5. What potential technology applications would enhance promotoras delivering patient-centered self-care training and resource navigation, communicating and integrating care with DHS, and disseminating AHH?
With the development of economy and change of lifestyles, it is characterized that there is a dramatic increase of diabetes in China. Changes in lifestyle/self-care behaviors by diabetes patients are required to improve blood glucose and subsequent outcomes. Mobile phone intervention was a kind of high cost efficiency and high quality health care. Our study evaluated a diabetes coaching system, using mobile phones and patient/provider portals for patient-specific treatment and communication.
The prevalence of diabetes has been growing rapidly in developing countries causing a devastating economic burden and increasing demands on healthcare systems. Therefore, there is an urgent need to find cost-effective and multi-faceted approach for diabetes care. Peer support models provide a potentially low-cost, flexible means that is complimentary to the current existing health care services. Trained peer leaders can become qualified extenders to a formal healthcare system, thereby, assisting with the education delivery and bolstering the efforts of the professional staff. To implement a culturally- specific peer support program and determine whether it is acceptable, cost-effective in China is important. This study aims to implement and evaluate biophysical and psychosocial outcomes of a peer support program and to explore it's feasibility and sustainability in China
Heart disease and stroke are the number one killers world-wide. When someone has hypertension, the constantly elevated blood pressure damages their blood vessels and the organs that they supply blood to. This causes stroke, heart attack, heart failure, kidney failure and dementia. Finding and lowering high blood pressure to normal with lifestyle changes and if necessary medications, lowers the risk of these outcomes. Canada has high rates of blood pressure control compared to other countries in the world, due in large part to the successful dissemination of hypertension guidelines. However remote and disadvantaged communities have not been as successful and need additional measures to help achieve the same level of blood pressure control as the rest of the country. The DREAM-GLOBAL team has extensive experience working with Canada's Aboriginal Communities and a large community in Tanzania. The DREAM-GLOBAL project will integrate innovations in technology with the implementation of guidelines-based blood pressure control and through partnerships with experts in government and industry, overcome barriers to lowering blood pressure in Canada's Aboriginal Communities, and in a community in Tanzania. Tools will be developed and tested that will close the circle of care around people with hypertension by bringing measurement data to the medical record and health care provider and also sending useful medical feedback to the person with hypertension via secure data servers and routine SMS messaging on cell phones. The system will be tested for effectiveness of diagnosing and also for managing hypertension. To begin the process of preventing hypertension, the team will also explore with an Aboriginal community how to create policies to reduce the sodium content in their food. If proven effective, DREAM-GLOBAL can also become a platform for managing other chronic diseases.
Diabetes type two is a debilitating disease that leads to chronic morbidity such as accelerated microvascular disease. Accelerated microvascular disease may produce blindness, end stage renal disease, myocardial infarction, stroke, and limb ischemia. Strategies to prevent or delay microvascular disease have the potential to improve the lives of millions and prevent catastrophic illness. The major focus of prevention of microvascular disease in diabetes has been on the endothelium and its role in protection of blood vessels. An unexpected means to prevent microvascular disease in diabetes may be coupled to the function of vitamin C in red blood cells (RBCs) of diabetic subjects. Based on new and emerging data, vitamin C concentrations in RBCs may be inversely related to glucose concentrations found in diabetes. Based on animal data, we hypothesize that RBCs with low vitamin C levels may have decreased deformability, leading to slower flow in capillaries and microvascular hypoxia, the hallmark of diabetic microangiopathy. Low vitamin C concentrations in RBCs of diabetic subjects may be able to be increased, by using vitamin C supplements. Findings in animals may not accurately reflect effects in humans because of species differences in mechanisms of vitamin C entry into RBCs. Therefore, clinical research is essential to characterize vitamin C physiology in RBCs of diabetic subjects. In this protocol we will investigate physiology of vitamin C in RBCs of diabetic subjects as a function of glycemia, without vitamin C supplementation (stage 1) and with vitamin C supplementation (stage 2). We will screen type II diabetic subjects on insulin and/or oral hypoglycemic medication(s) and select those with hemoglobin A1C concentrations of less than or equal to 12%. Selected subjects may be hospitalized twice, each time for approximately one week. The primary objective of the first hospitalization (stage 1) will be to evaluate the effect of hyperglycemia on vitamin C RBC physiology regardless of baseline vitamin C concentrations (without any vitamin C supplementation). The second hospitalization (stage 2) investigates the effect (if any) of vitamin C supplementation to changes in RBC physiology during euglycemic and hyperglycemic states. As inpatients, subjects will have two venous sampling periods each of approximately 24 hours. On admission, subjects may be fitted with continuous glucose monitors (CGMs), oral hypoglycemic agents will be discontinued, and basal-bolus insulin regimen initiated. Insulin doses will be clinically determined and titrated to achieve euglycemia (fasting and pre-meal glucoses <140mg/dl) prior to the first sampling period (euglycemic sampling). The first sampling period will be performed under conditions of euglycemic control for 24 hours. The second sampling period will be performed under controlled hyperglycemia induced by withholding basal and bolus insulin and providing a high carbohydrate load diet (70-75% carbohydrate). Correction-scale insulin will be provided for glucoses >350-400mg/dl. Hyperglycemia will not exceed 9 hours, and will be reversed by reinstituting insulin. During the two sampling periods, samples will be withdrawn via venous catheter for RBC deformability, vitamin C concentrations and other related research studies. Following completion of stage 1, subjects considered for participation in stage 2 will be provided a prescription for vitamin C 500mg twice daily. Given that vitamin C and vitamin E are related antioxidants, and that both vitamins appear to be associated with RBC rigidity, diabetic subjects may also be given a prescription for 400 international units (IU) of vitamin E (RRR alpha tocopherol) daily. Subjects will continue vitamin C and E supplementation for a minimum of 8 weeks depending on RBC vitamin C concentrations. To evaluate any effect of vitamin E supplementation, plasma and RBC vitamin E levels may be measured concurrently with vitamin C levels during various phases of stages 1 and 2. All subjects will be seen as outpatients at biweekly or monthly intervals with regular measurement of plasma and RBC vitamin C concentrations. Target RBC vitamin C concentration >30uM is required prior to stage 2 inpatient sampling studies. Vitamins C and E supplementation will be discontinued upon inpatient admission for stage 2. Risk of both vitamin supplements are minimal as both supplementation doses are safe. Outcomes are to measure RBC rigidity and vitamin concentrations before and after supplementation. After a minimum of 8 weeks (depending on RBC vitamin C levels), subjects will be hospitalized again, and sampling repeated as described. In this manner, each subject serves as his/her own control, and deformability of red blood cells can be determined in relation to glycemia and to vitamin C concentrations in RBCs and plasma.
With improvements in patient and graft survival, increasing attention has been placed on complications that contribute to long-term patient morbidity and mortality. New-onset diabetes after transplantation (NODAT) is a common complication of solid-organ transplantation, and is a strong predictor of graft failure and cardiovascular mortality in the transplant population. Risk factors for NODAT in transplant recipients are similar to those in non-transplant patients, but transplant-specific risk factors such as hepatitis C (HCV) infection, corticosteroids and calcineurin inhibitors play a dominant role in NODAT pathogenesis. The predominant factor for causing NODAT by corticosteroids seems to be the aggravation of insulin resistance; however several studies have displayed deleterious effects on insulin secretion and β-cells. Thus, adjusting the immunosuppressant regimen to improve glucose tolerance must be measured and defined from long term perspective. As recipients of organ transplants survive longer, the complications of NODAT have assumed greater importance; therefore, we designed a prospective study to compare the safety and efficacy of early versus late withdrawal of corticosteroids after liver transplantation.
The purpose of this study is to describe and compare the different types of diabetes that exist in people from white European and south Asian origin in the UK (United Kingdom) who are diagnosed with diabetes before they turn 30 years old. By doing this we hope to identify cases of MODY (maturity onset diabetes of the young), which is a rare genetic cause of diabetes that is frequently misdiagnosed. Identifying MODY cases is important, as the treatment may differ to conventional treatment for type 1 or type 2 diabetes.