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Eight type II (non-insulin-dependent) normolipidemic diabetic patients (aged 45 +/- 15 yr, body mass index 22 +/- 2 kg/m2, means +/- SD) treated with diet alone or diet plus oral hypoglycemic agents were given, in random order for periods of 15 days, two diets with different carbohydrate (CHO) (40 vs. 60% of total calories) and fat (20 vs. 40%) levels. Simple CHO, fiber, saturated fat, cholesterol, and polyunsaturated-saturated fat ratio were similar in the two diets. Total plasma cholesterol was not significantly affected by dietary changes; conversely, plasma triglyceride (1.38 +/- 0.59 vs. 1.11 +/- 0.39 mM, P less than 0.05) and apolipoprotein CII (3.8 +/- 1.4 vs. 3.3 +/- 0.8 mg/dl) increased significantly after the high-CHO low-fat diet. Among the various lipoproteins, very-low-density lipoprotein (VLDL) was the most affected by diet: VLDL cholesterol concentrations increased from 0.30 +/- 0.19 to 0.43 +/- 0.28 mM (P less than 0.05), and triglyceride concentrations increased from 0.62 +/- 0.33 to 0.88 +/- 0.53 mM (P less than 0.05). In conclusion, increasing the amount of complex CHO in the diet induces an elevation of VLDL in normolipidemic, nonobese, mildly type II diabetic patients.
Rivellese et al. (Sun,) studied this question.