PLA2G7 and Alzheimer disease: Two studies demonstrated no significant association between plasma Lp‐PLA2 mass and AD.179, 180 In addition, Davidson et al181 observed that plasma Lp‐PLA2 activity was not associated with a diagnosis of AD, since no strong correlations were found between Lp‐PLA2 activity and cerebrospinal fluid (CSF) markers of AD.