Neuropharmacological effects in mice of Lychnophora species (Vernonieae, Asteraceae) and anticonvulsant activity of 4, 5-di-O-[E]-caffeoylquinic acid isolated from the stem of L. rupestris and L. staavioides - Taleb-Contini, S H; Santos, W F; Mortari, M R; Lopes, N P; Lopes, J L (Basic Clin Pharmacol Toxicol, 2008)