Type 2 Diabetes
Conditions
Brief summary
Second-meal phenomenon denotes the effect of a prior meal in decreasing the rise in blood glucose after a subsequent meal. This phenomenon occurs in normal subjects while it is not clear whether it is also observed in type 2 diabetic patients. This study aims to define whether the second-meal phenomenon occurs in type 2 diabetic patients. We will also seek for the mechanism.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* age 35-70 * HbA1c 6-8% * DM duration less than 5 yrs
Exclusion criteria
* type 1 DM, secondary DM, gestational DM * patients using insulin, TZDs * patients using corticosteroid, herb medication or other medications affecting glucose tolerance * renal dysfunction (Cr \> 1.5mg/dL) * hepatic dysfunction (LFT \> x 3UNL) * anemia (Hg \< 10g/dL) * ischemic heart disease, congestive heart failure * severe diabetic complication (CRF, CVA, PDR, gastroparesis) * infectious disease * malignancy * pregnant women
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Area under the curve of plasma glucose after meal | 3 months | Compare the post-lunch AUC of glucose between two meal tolerance tests(one after having breakfast, one after not having breakfast) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| the mechanism of second-meal phenomenon | 3 months | serum FFA, plasma insulin, C-peptide, incretin concentration will be measured |
Countries
South Korea