This article was aimed to analyze the bioactive ethyl acetate fraction from the extract of Crocus sativus petal by LC-MS and to study its antidepressant effect. Antidepressant test was performed employing rat C6 glioma cells model. The major compounds from ethyl acetate fraction were cinnamic acid derivatives, which primarily included methylcinnamaldehydes, carboxycinnamylic acid carboxyphenethyl ester, carboxyvinylcinnamyl alcohol propinate, 3-acetoxy-4-propoxycinnamylic acid, carboxycinnamylic acid glycol ester, vinnylcinnamylic acid hexylene glycol ester and cinnamylic acid. In C6 glioma cells test, the ethyl acetate extract of C. sativus petal significantly upregulated nerve growth factor (NGF) and brain derived neurotrophic factor (BDNF) expression. C. sativus petal has antidepressant effect, and cinnamic acid derivatives shoud be the main antidepressant constituents. The mechanism may be related to the inhibition of NGF and BDNF reuptake.
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