antioxidant;calcium channel;apoptosis

L-Ascorbic acid (Vitamin C) is a natural product that is a potent reducing agent and antioxidant. L-Ascorbic acid functions in fighting bacterial infections, in detoxifying reactions, and in the formation of collagen. L-Ascorbic acid is used in the treatment of scurvy.

(±)-α-Bisabolol (Bisabolol) isa sesquiterpenol extracted from essential oils of chamomile, candida and other plants. It isa natural antiseptic with soothing, antiirritating, anti-inflammatory, antioxidant and anticancer activities. (±)-α-Bisabolol has anticancer effects on A549 NSC-LC cells by inducing cell cycle arrest, mitochondrial death and inhibiting PI3K Akt signaling (IC50 = 15 μM). (±)-α-Bisabolol can induce apoptosis of glioma cells.

Bryonolic acid (20-epi-Bryonolic acid), a triterpenoid extracted from Sandoricum indicum, possesses immunomodulatory, anti-inflammatory, antioxidant and anticancer activities and protects PC12 cells from NMDA-induced apoptosis by inhibiting Ca2+ in-flux and modulating gene expression in the Ca2+-CaMKII-CREB signalling pathway.