The inflammatory reaction is characterized by increased circulatory levels of various indicators of the severity of inflammation. The objective was to investigate the value of lipoprotein-associated phospholipase A2 (Lp-PLA2) in patients with noncardioembolic ischemic stroke and severe proinflammatory reaction. There were investigated prospectively Lp-PLA2 levels in sera from 47 patients with ischemic stroke and severe inflammatory reaction (32 men and 15 women, mean age 63 +/- 4.23 years) as compared to 38 patients with ischemic stroke without inflammatory reaction (21 men and 17 women, mean age 61 +/- 5.52 years) and 114 healthy elderly controls. Lp-PLA2 levels were assessed using the diaDexus PLAC test (a noncompetitive ELISA). Out of 47 patients with ischemic stroke and severe inflammatory reaction 36 presented Lp-PLA2 high levels (79%). Lp-PLA2 was detected with high levels in 17 out of 30 patients with ischemic stroke without inflammatory reaction (45%). Patients with ischemic stroke and severe inflammatory reaction presented Lp-PLA2 with high levels more frequently than the healthy controls (RR 12.1 [95% CI. 6.22 to 19.333], p<0.0001). Levels of Lp-PLA2 were higher in subjects who experienced a stroke as compared to controls. Lp-PLA2 is a strong predictor of recurrent stroke risk and of increased risk of dying. The determination of Lp-PLA2 should be used to predict patient risk of cardiovascular disease and stroke; it does provide additional risk of inflammation when used in conjunction with the traditional markers. Lp-PLA2 might be used not only for risk stratification of stroke patients, but also as target for treatment.
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