New ARIC data confirm enzymes potential as a target for independent cardiovascular diagnosis and therapy
High levels of an enzyme – lipoprotein-associated phospholipase A2 (Lp-PLA2) – believed to trigger a cascade of inflammatory events in atherosclerosis can independently predict increased risk of stroke, even after accounting for both traditional and novel cardiovascular risk factors, according to a new analysis by investigators from the ongoing Atherosclerosis Risk in Communities (ARIC) study presented at the American Heart Associations Scientific Sessions 2004.
Middle-aged participants with the highest levels of Lp-PLA2 had a statistically significant doubling of risk of suffering an ischemic stroke over a period of about six years compared to those with the lowest levels of the enzyme after taking age, gender and race into consideration (p <0.001). Even when traditional cardiovascular risk factors such as systolic blood pressure, smoking status and diabetes, and the novel risk marker of systemic inflammation C-reactive protein (CRP) are accounted for, elevated levels of Lp-PLA2 remained associated with a significantly increased stroke risk of almost twofold.
Marybeth Farrell | EurekAlert!
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