Objectives: The aim of the study was to evaluate the concentration of interleukin 12 (IL-12), the activity of phospholipase A(2) (PLA(2)), and platelet-activating factor acetylhydrolase (PAF-AH) in type 1 diabetes (DM1) patients treated with intensive insulin therapy.
Design And Methods: Studied parameters were measured in 81 patients, who were subdivided according to the HbA(1)c value, hsCRP concentration, and presence or absence of late complications.
Results: PAF-AH activity was higher in the DM1 patients versus the control group (P=0.042). IL-12 concentration was the highest in subgroup with > or =3 mg/L hsCRP (P<0.05). Negative correlations were found for the IL-12 and age of patients and for apo A-I in the subgroup with poor metabolic control. In addition, positive correlation for hsCRP and PAF-AH activity in the subgroup with > or =3 mg/L CRP (P<0.05) was also found.
Conclusions: PAF-AH and IL-12 appear to be implicated in the development of a chronic inflammation in DM1. In addition, our results emphasize a protective role of apo A-I against an increase in IL-12 production.
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