Figure 4.
In vitro glucose-stimulated insulin release in presence of phenolic compounds of Yerba mate. Bars represent in vitro effect of the YM freeze-dried extract and phenolic compounds on the insulin release of untreated isolated rat pancreatic islets in the presence of glucose (3.3 mM or 16.7 mM). Each bar represents mean ± SEM from three independent experiments. * p < 0.05.