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J Neural Transm (Vienna). 2009 Sep;116(9):1071-7. doi: 10.1007/s00702-009-0268-z. Epub 2009 Aug 1.

sPhospholipase A(2) is inhibited by anthocyanidins.

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Department of Psychiatry, University of Regensburg, Regensburg, Germany.


Epidemiological studies suggest that nutritional antioxidants may reduce the incidence of neurodegenerative disorders and age-related cognitive decline. Specifically, protection against oxidative stress and inflammation has served as a rationale for promoting diets rich in vegetables and fruits. The present study addresses secretory phospholipase A(2) (sPLA(2)) as a novel candidate effector of neuroprotection conferred by anthocyanins and anthocyanidins. Using a photometric assay, 15 compounds were screened for their ability to inhibit PLA(2). Of these, cyanidin, malvidin, peonidin, petunidin, and delphinidin achieved K(i) values <or=18 microM, suggesting a modulatory role for berry polyphenols in phospholipid metabolism.

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