Table 2: Influence of the Calendula officinalis extract and fractions on the number of blood vessels (median, minimum/maximum) of the chorioallantoic membrane from fertilized chicken eggs.

TreatmentNumber of blood vessels

CEE1 (0/4)*
HCF1 (0/4)*
DCF2 (0/13)*
PC2 (0/13)*
SC11 (0/3)
SC21 (0/3)

CEE: ethanolic extract of flowers from Calendula officinalis at 1%, HCF: hexanic fraction at 1%, DCF: dichloromethane fraction at 1%, PC: positive control at 1% (17 β-estradiol), SC1: solvent control with 70% ethanol, SC2: solvent control with distilled water. * when compared to SC1.