The flavonoid rutin but not the alkaloid arborinine induces apoptosis in a B-cell hybridoma cell line - Roseghini, R; Falcão, G M; Oliveira Costa, J F; Clarencio, J; Nascimento, I; Velozo, E; Schaer, R; Vale, V; Costa, S L; Costa Mde, F; Tardy, M; Meyer, R; Menezes Freire, S (Planta Med, 2009)