Cell viability assay
Cell viability was detected by using MTT assay kit (EZ-Cytox kit, Cat# EZ-3000, DAEILLAM Co, Ltd, Seoul, Republic of Korea) according to the instruction of manufacturer. Briefly, SH-SY5Y cells were seeded at a density of 6 \(\times\) 104cells·well-1 in 96-well culture plate and incubated with each reagent and EZ-Cytox solution for 1 h at 37. The absorbance of culture plate was measured at 450 nm with a microplate reader (TECAN, Switzerland).