Table 1: Noradrenaline-induced contractions.

Group NA-induced contraction (mm Hg)

Male rats
Control651.39 ± 8.46
Vehicle for phytoestrogens752.50 ± 4.72
10 mg/kg genistein443.75 ± 6.38
10 mg/kg daidzein562.5 ± 9.68

Intact female rats
Control653.54 ± 8.08
Vehicle for phytoestrogens547.68 ± 6.67
10 mg/kg genistein451.88 ± 4.72
10 mg/kg daidzein655.42 ± 5.02
20 mg/kg daidzein553.80 ± 1.70

Ovariectomized female rats
Control852.81 ± 3.61
Vehicle for phytoestrogens441.25 ± 6.49
Vehicle for 17β-oestradiol643.76 ± 4.55
10 mg/kg genistein456.25 ± 11.48
10 mg/kg daidzein455.00 ± 8.42
20 mg/kg daidzein447.50 ± 4.50
450 μg/kg 17β-oestradiol652.50 ± 9.64