PGC-1 & Muscle Mitochondrial Dysfunction in Diabetes
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 发起方
- Mayo Clinic
- 入组人数
- 26
- 试验地点
- 2
- 主要终点
- Transcription Factor Response to Exercise
研究概览
简要总结
The goal of this study is to understand how and why insulin resistant individuals respond differently to exercise as compared with insulin sensitive individuals at the skeletal muscle and gene expression level.
详细描述
The goal of this study is to understand how and why insulin resistant individuals respond differently to exercise as compared with insulin sensitive individuals at the skeletal muscle and gene expression level. The study has four aims including testing if MZF1, NFKB1, RELA, SP1/KLF and EGRI expression responses are outside of the normal range in insulin resistant individuals and how insulin resistance changes the cell biosynthesis process/ post translational modifications. It also aims to define the response of MiRNAs in healthy and insulin resistant individuals and determine if treatment with Gemfibrozil inhibits transcription processes.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 30 Years 至 59 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •BMI: Lean, BMI less than or equal to 25; Obese, BMI between 30-40; type 2 diabetic, BMI between 30-
- •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 (except for Aim 4).
- •BMI: Lean, BMI less than or equal to 25; Obese, BMI between 30-
- •Patients may have normal or impaired glucose tolerance.
- •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 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 > 300 mg/dl for nondiabetics, > 250 mg/dl for impaired glucose tolerance.
排除标准
- •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 metformin or 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.
结局指标
主要结局
Transcription Factor Response to Exercise
时间窗: 4-6 weeks
To determine whether expression of the transcription factor MZF1 is induced by exercise to a greater degree in control patients than in those with type 2 diabetes mellitus. MZF1 expression will be determined using quantitative rt-PCR analysis on RNA isolated from muscle biopsies taken from the patients. An repeated measures analysis of variance will be performed on the PCR data, for the three groups (lean, obese, type 2 diabetic), with the difference between the lean and diabetic groups being the primary measure. A P value of 0.05 will be considered significant.
次要结局
未报告次要终点
研究者
Lawrence Mandarino
Principal Investigator
Mayo Clinic