Fig. 5

Protective effects of CHP4 at various concentrations against the Aβ1–42. Aβ1–42 (100 µM)-induced cytotoxicity in PC12 neuronal cells (Cell viability was assayed through using MTT. The values are presented as the mean ± SD of three independent experiments. The cell viability of the control group not exposed to either CHP4 or Ab1-42 is defined as 100%.)