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Title: Influence of endogenous and environmental factors on variations of serum lipoprotein (a) concentrations in a large population of insulin-treated diabetic patients.
Author: Durlach V, Gillery P, Bertin E, Grulet H, Gross A, Leutenegger M.
Journal: Diabetes Metab; 1998 Apr; 24(2):124-30. PubMed ID: 9592636.
Abstract:
Variations of serum Lp(a) concentrations were studied in a large population of insulin-treated diabetic patients in relation to the type of diabetes, insulin treatment and long-term complications. Lp(a) concentrations were measured by immunonephelometry in 740 diabetic patients [493 insulin-dependent diabetic (IDDM) patients and 247 insulin-treated Type 2 diabetic (ITD) patients]. Concentrations and distributions were compared with those of 128 non-diabetic controls. Correlations were investigated with lipidic and glycaemic parameters, daily lipid intake, body mass index (BMI), macrovascular and nephropathic complications, and insulin therapy. Both groups of insulin-treated patients (IDDM and ITD) displayed significantly higher Lp(a) concentrations when compared to controls. No relationship was found with macrovascular complications and nephropathy, except in IDDM patients in whom Lp(a) was elevated when creatinine concentration was above 120 mumol/L. Mean variations of Lp(a) were correlated with BMI and triglyceride variations in IDDM patients and only with triglycerides in ITD patients. These results suggest a direct and/or indirect (via serum triglycerides) potential role of exogenous insulin in the modulation of serum Lp(a) concentrations. BMI and lipid daily fat intake could be considered as additional modulating factors of Lp(a) serum concentrations in ITD patients.

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