Status:
COMPLETED
Epigenetics of Muscle Insulin Resistance
Lead Sponsor:
University of Arizona
Conditions:
Diabetes Mellitus, Type 2
Obesity
Eligibility:
All Genders
21-55 years
Brief Summary
The investigators are trying to understand the role of DNA (deoxyribonucleic acid) methylation in insulin resistance in skeletal muscle and blood tissues. DNA methylation is a normal chemical process ...
Detailed Description
Insulin resistance is defined as the decreased ability of insulin to perform its biological function in the muscle, liver and fat. Genetic and environmental factors are known to influence insulin sens...
Eligibility Criteria
Inclusion
- Inclusion Criteria
- Age 21-55
- BMI: Lean, BMI less than or equal to 25; Obese, BMI between 30- 50; type 2 diabetic, BMI between 30- 50.
- Subjects must be able to communicate meaningfully with the investigator and must be legally competent to provide written informed consent.
- Subjects may be of either sex with age as described in each protocol. Female subjects must be non-lactating and will be eligible only if they have a negative pregnancy test throughout the study period.
- Subjects must range in age as described in each specific protocol.
- Subjects must have the following laboratory values:
- Hematocrit ≥ 35 vol%
- Serum creatinine ≤ 1.6 mg/dl
- AST (SGOT) \< 2 times upper limit of normal
- ALT (SGPT) \< 2 times upper limit of normal
- Alkaline phosphatase \< 2 times upper limit of normal
- Triglycerides \< 150 mg/dl for nondiabetics
- Triglycerides \<300 for diabetics
- INR ≤ 1.3
- Exclusion Criteria
- Subjects must not be receiving any of the following medications: thiazide or furosemide diuretics, beta-blockers, or other chronic medications with known adverse effects on glucose tolerance levels unless the patient has been on a stable dose of such agents for the past three months before entry into the study. Subjects may be taking a stable dose of estrogens or other hormonal replacement therapy, if the subject has been on these agents for the prior three months. Subjects taking systemic glucocorticoids are excluded. Patients with type 2 diabetes will be excluded if they are taking thiazolidinediones, but may be taking sulfonylureas or other medications known to work through effects on insulin secretion.
- Subjects receiving Gemfibrozil must not also be receiving a statin.
- Subjects with a history of clinically significant heart disease (New York Heart Classification greater than grade II; more than non-specific ST-T wave changes on the EKG), peripheral vascular disease (history of claudication), or pulmonary disease (dyspnea on exertion of one flight or less; abnormal breath sounds on auscultation) will not be studied.
- Recent systemic or pulmonary embolus, untreated high-risk proliferative retinopathy, recent retinal hemorrhage, uncontrolled hypertension, systolic BP\>180, diastolic BP\>105, autonomic neuropathy, resting heart rate \>100, electrolyte abnormalities.
Exclusion
Key Trial Info
Start Date :
November 1 2016
Trial Type :
OBSERVATIONAL
Allocation :
ACTUAL
End Date :
November 2 2018
Estimated Enrollment :
72 Patients enrolled
Trial Details
Trial ID
NCT03259984
Start Date
November 1 2016
End Date
November 2 2018
Last Update
October 14 2019
Active Locations (1)
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1
University of Arizona
Tucson, Arizona, United States, 85724