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Article Publish Status: FREE
Abstract Title:

Study on Chemical Profile and Neuroprotective Activity of Myrica rubra Leaf Extract.

Abstract Source:

Molecules. 2017 Jul 24 ;22(7). Epub 2017 Jul 24. PMID: 28737731

Abstract Author(s):

Pinghong Chen, Xianzong Lin, Ching-Hsu Yang, Xu Tang, Yu-Wei Chang, Weibing Zheng, Lianzhong Luo, Changan Xu, Yung-Husan Chen

Article Affiliation:

Pinghong Chen

Abstract:

The chemical profile of(a native species in China) leaf extract was investigated by UPLC-PDA-HRMS, and the neuroprotective activity of two characteristic constituents, myricanol and myricetrin, was evaluated with N2a cells using H₂O₂-inducedoxidative challenge through a series of methods, e.g., MTT assay, ROS assay and [Ca]i assay. Among the 188 constituents detected in the extract ofleaf, 116 were identified definitely or tentatively by the comprehensive utilization of precise molecular weight and abundant multistage fragmentation information obtained by quadrupole orbitrap mass spectrometry. In addition, 14 potential new compounds were reported for the first time. This work established an example for the research of microconstituents in a complex analyte and revealed that suppression of H₂O₂-induced cytotoxicity in N2a cells was achieved by the pretreatment with myricanol. The evidence suggested myricanol may potentially serve as a remedy for prevention and therapy of neurodegenerative diseases induced by oxidative stress.

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