Fig. 3From: Phenylethanol glycosides from the seeds of Aesculus chinensis var. chekiangensisNeuroprotective activities of compounds 1-4 (10 μM) against CoCl2-induced cell death in PC12 cells. The data (cell viability, measured by MTT assay) are expressed as mean ± SD. Three independent experiments were performed. Trolox was used as the positive control at 10 μM. Compared with CoCl2 treated group, *P < 0.05, **P < 0.01Back to article page