Cytotoxicity and genotoxicity of ingenamine G isolated from the Brazilian marine sponge Pachychalina alcaloidifera - Cavalcanti, B C; Sombra, C ML; de Oliveira, J H; Berlinck, R G; de Moraes, M O; Pessoa, C (Comp Biochem Physiol C Toxicol Pharmacol, 2008)