Inhibition of α-glucosidase and hypoglycemic effect of stilbenes from the Amazonian plant Deguelia rufescens var. urucu (Ducke) A. M. G. Azevedo (Leguminosae) - Pereira, A C; Arruda, M SP; da Silva, E AS; da Silva, M N; Lemos, V S; Cortes, S F (Planta Med, 2012)