Yanling Zhang

TL;DR: In the in vitro assays, compound 4 and liriodendrin both showed activity against glutamate-induced PC12 cell damage at 10 (-5) M M, and the validity of J 7,8 and Deltadelta C8-C7 values to distinguish threo and erythro derivatives was discussed.

TL;DR: Three pyridinium inner salt alkaloids, lonijaposides A-C (1-3), based on an unprecedented skeleton of an N-substituted nicotinic acid nucleus coupled through C-5 with C-7 of a secoiridoid, have been isolated from the flower buds of Lonicera japonica.

TL;DR: Nine new dammarane triterpene glycosides and 12 known analogues have been isolated from an ethanol extract of the roots of Machilus yaoshansis and the previously reported C-20 and C-23 configurations of 4-7 and related derivatives from Gynostemma pentaphyllum were revised.

TL;DR: Ten minor new glycosidic constituents (1- 10) have been isolated from a neuroprotective fraction of an ethanolic extract of the tubers of Gymnadenia conopsea and evaluated for activity in in vitro assays for acetylcholine esterase and monoamine oxidase inhibitory activities.

TL;DR: In the in vitro assays, at 10(-5) M, compounds 8, 16, and 22 showed inhibitory activity against the release of β-glucuronidase in rat polymorphonuclear leukocytes induced by platelet-activating factor, with 59.7 ± 4.8%, 56.1 ± 5.6%, and 65.9 ± 3.1% inhibition, respectively.