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|Titolo:||Increased susceptibility of LDL to in vitro oxidation in patients with insulin-dependent and non-insulin-dependent diabetes mellitus|
|Autori interni:||COMINACINI, Luciano|
FRATTA PASINI, Anna Maria
LO CASCIO, Vincenzo
|Data di pubblicazione:||1994|
|Abstract:||The susceptibility of LDL to copper-catalyzed oxidation was evaluated in 24 patients with insulin-dependent and 16 patients with non-insulin-dependent diabetes mellitus, 14 abdominal and 14 gluteal-femoral obese women, 22 familial hypertriglyceridemic and 28 control subjects. Differences in the LDL susceptibilities were studied by measuring the changes of fluorescence intensity and expressed as lag-phase. The lag-phase was significantly shorter in patients with insulin-dependent, non-insulin-dependent diabetes mellitus, abdominal obesity and familial hypertriglyceridemic patients than in gluteal-femoral obese subjects and controls (p < 0.01). The shortest lag-phase was found in familial hypertriglyceridemic patients while intermediate values were found in insulin-dependent, non-insulin-dependent and abdominal obese patients who had only a slight increase in triglyceride values. Similarly the lowest value of the LDL cholesterol to protein ratio, as expression of LDL particle size, was found in familial hypertriglyceridemic patients (p < 0.01), while the patients with insulin-dependent, non-insulin-dependent diabetes mellitus and abdominal obesity had intermediate values. The ratio was found to be directly correlated with the length of the lag-phase (r = 0.87, p < 0.001). In spite of similar triglyceride and cholesterol to protein ratio values, however, the length of the lag-phase was significantly shorter in patients with insulin-dependent diabetes mellitus than in those with abdominal obesity. So it is concluded that the different susceptibility to oxidation found in the different groups of patients is only partially explained by plasma triglyceride values.|
|Appare nelle tipologie:||01.01 Articolo in Rivista|
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