期刊
PHYTOTHERAPY RESEARCH
卷 22, 期 2, 页码 256-258出版社
WILEY
DOI: 10.1002/ptr.2266
关键词
Lippia alba; antioxidant; sedative; iridoid; phenylpropanoid; flavonoid
The neurosedative and antioxidative properties of some major compounds isolated from a citral chemotype of Lippia alba were investigated. Binding assays were performed on two CNS inhibitory targets: benzodiazepine and GABA(A) receptors. The most active compound was luteolin-7-diglucuronide, with half maximal inhibitory concentrations (IC50) of 101 and 40 mu m, respectively. Fifteen compounds isolated from Lippia alba were tested for their radical scavenging capacities against DPPH. Four of the major compounds (verbascoside, calceolarioside E, luteolin-7-diglucuronide and theveside) were also tested for their antioxidant activity against superoxide radical-anion in cell-free (hypoxanthine-xanthine oxidase) and cellular (PMA-stimulated neutrophil granulocytes) systems. Copyright (C) 2007 John Wiley & Sons, Ltd.
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