Catalposide protects Neuro 2A cells from hydrogen peroxide-induced cytotoxicity via the expression of heme oxygenase-1.

Catalposide, the major iridoid glycoside isolated from the stem bark of Catalpa ovata G. Don (Bignoniaceae) has been shown to possess anti-microbial, anti-tumoral, and anti-inflammatory properties. Heme oxygenase-1 (HO-1) is a stress response protein and is known to play a protective role against the oxidative injury.