Postprandial lipidemia is normal in non-obese type 2 diabetic patients with relatively preserved insulin secretion

Ana M Wägner, Jordi Ordóñez-Llanos, Rosa Arcelus, Rosa Bonet, Oscar Jorba, Jose L Sánchez-Quesada, Esther Alonso, Josep Julve, Antonio Pérez
Metabolism: Clinical and Experimental 2003, 52 (8): 1038-42
To assess postprandial lipidemia in normotriglyceridaemic type 2 diabetic patients treated with diet only, 12 non-obese patients (8 males, hemoglobin A(1c) [HbA(1c)] 6.80 +/- 0.67%) and 14 controls of similar age, body mass index (BMI), and fasting triglyceride (Tg) were given a test meal (58 g fat, 100,000 IU vitamin A). Fasting low-density lipoprotein (LDL) cholesterol (LDLc), high-density lipoprotein (HDL) cholesterol (HDLc), free fatty acids, and apolipoprotein B (apoB), and fasting and postprandial Tg, retinylpalmitate (RP), LDL size, glucose, and insulin were measured. The homeostasis assessment model (HOMA) index and lipoprotein (Lpl) and hepatic (HL) lipase activities were estimated. Patients showed lower fasting HDLc (1.12 +/- 0.26 v 1.40 +/- 0.28 mmol/L, P =.02) and a trend towards smaller LDL particles, which was significant 4 hours postprandially (25.86 +/- 0.40 v 26.16 +/- 0.30 nm, P =.04). The area under the curve of Tg (AUC-Tg) and RP, and Lpl were similar, but HL was higher in patients (156.63 +/- 23.89 v 118 +/- 43.27 U/L, P =.011). HL correlated inversely with LDL size and directly with the HOMA index. In conclusion, normotriglyceridemic type 2 diabetic patients with insulin resistance but relatively preserved insulin secretion show low fasting HDLc and increased HL, but normal postprandial lipidemia.

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