Research Article

A Phenolic Fraction from Catharanthus roseus L. Stems Decreases Glycemia and Stimulates Insulin Secretion

Figure 2

Effect of the aqueous fraction and the precipitate of the aqueous alkaloid-free extract of C. roseus on the viability of RINm5F cells (MTT assay, T= 24 h). n= 9. means significantly different versus control, p < 0.05.