Ischemic Injury and Ischemic Preconditioning in Diabetes
Diabetes MellitusInsulin-Dependent1 moreIn this proof-of-concept study, forearm vulnerability to ischemic exercise is studied in patients with type 1 diabetes mellitus with and without prior ischemic preconditioning (short period of ischemia that protects against subsequent ischemic exercise). Annexin A5 scintigraphy is used to quantify subtle signs of mild and reversible forearm injury that results from ischemic exercise. The following hypotheses are tested: Patients with type 1 diabetes are not more vulnerable to ischemic injury as compared with previously studied healthy volunteers. Ischemic preconidtioning is still present in patients with type 1 diabetes. Depending on the validity of hypothesis 2, the effect of short pharmacological interventions are studied on vulnerability to forearm ischemia/reperfusion injury in the absence or presence of local forearm ischemic preconditioning.
Implantable Antenna Sensors for Continuous Glucose Monitoring
Type 1 Diabetes MellitusThe researchers' long-term goal is to develop a small implantable device that can continually monitor glucose levels. This will be an antenna. Changes in the glucose levels in will affect the antenna signals and those can be used to predict the patient's glucose levels.
Ability to Cope With Type 1 Diabetes
DepressionThe purpose of this study is to learn about the relationship that exists between coping skills and blood glucose control. In addition to this, we will study the effect of type 1 diabetes on coping skills in different age groups, genders, ethnicities, socioeconomic groups, and the duration of diabetes.
The Impact of Pancreatic Islet Cell Allotransplantation on Cognitive Function in Type 1 Diabetes...
Diabetes MellitusType 1In patients with Type 1 Diabetes Mellitus, hypoglycemia (low blood sugar) is the rate-limiting step to achieve glucose level control. As a result, understanding the body's responses (including the brain's response) to hypoglycemia is essential for the effective treatment of patients with T1DM. The purpose of this research is to determine whether pancreatic islet cell allotransplantation to restore normoglycemia (normal blood glucose levels) in Type 1 Diabetic patients with hypoglycemia unawareness alters brain fuel utilization and cognitive performance under euglycemic (blood sugar at 100 mg/dl) and hypoglycemic (blood sugar at 50 mg/dl) conditions. Three groups of subjects will be studied: (1) T1DM patients with a history of severe hypoglycemia and/or hypoglycemia unawareness who have been selected for pancreatic islet cell allotransplantation; (2) T1DM patients who also have a history of severe hypoglycemia and/or hypoglycemia unawareness; (3) nondiabetic subjects. All subjects will undergo identical testing including: (a) screening; (b) neuropsychological testing; (c) and functional magnetic resonance imaging (fMRI) during euglycemic and hypoglycemic conditions.
STEP: Social Support To Empower Parents
Type 1 DiabetesThis RCT intervention provides parental social support (informational, affirmational, and emotional) using parent mentors (experienced in the management of the chronic illness) for mothers and fathers of young children newly diagnosed with type 1 diabetes. The parent mentors provide both home visits and phone call support over the course of the first year after diagnosis. The hypothesis is that newly diagnosed parents who receive the intervention will perceive less parental concern and worry, less negative impact on the family, more perceived confidence and social support compared to those mothers and fathers not receiving the intervention.
Markers and Mechanisms of Macrovascular Disease in IDDM
Cardiovascular DiseasesDiabetes Mellitus4 moreTo elucidate the biochemical, metabolic, and genetic markers and mechanisms of macrovascular disease in insulin dependent diabetes mellitus (IDDM).
hOKT3gamma1 (Ala-Ala) for the Prevention of Human Islet Allograft Failure
Diabetes MellitusInsulin-Dependent5 moreThe broad, long-term goal of this proposal is to improve the results and applicability of islet allotransplantation early in the course of type 1 diabetes through the administration of selective and short-term immunotherapy. More specifically, the objectives of these studies is to conduct an open-labeled, one-year follow-up Phase I/II study in patients with surgical and type 1 diabetes to determine the safety, tolerability, immune activity, and pharmacokinetics of hOKT3gamma1 (Ala-ala) administration for the prevention of autoimmune destruction and rejection of allogeneic islet transplants.
GABA and Beta-cell Regeneration
Diabetes MellitusType 1GABA(gamma-Aminobutyric acid) may be used for decreasing anti-gad antibodies and leads beta-cell regeneration.
Glucose-dependent Insulinotropic Polypeptide as a Safeguard Against Hypoglycemia in Patients With...
Diabetes MellitusType 1In the present project the investigators will evaluate whether glucagonotropic properties of the gut-derived incretin hormone glucose-dependent insulinotropic polypeptide (GIP) may be utilized as a safeguard against hypoglycemia in patients with T1D.
Cohort Study of Patients With Type 1 Diabetes
Type 1 Diabetes MellitusStructured EducationThis study aims to clarify the underlying hereditary and autoimmune factors that contribute to clinical type 1 diabetes and gain a better understanding of the natural history of the disease.