Table 2.

Correlation between antioxidant activities and angiostatic activities of bee products

	Antioxidant activities (μg/ml)	Angiostatic activities (μg/ml)
Caffeic acid phenethyl ester	3.6	0.3
Chinese red propolis	18.5	3.0
Bee pollen	196.7	100.0
Royal jelly	-	300.0

Antioxidant activities show the DPPH radical scavenging activities of bee products. These data represents the values of IC₅₀. Angiostatic activities are represented by the minimal concentrations at which each bee products suppresses all of parameters against VEGF-induced tube formation. Data of antioxidant activities in this table were partially modified from Izuta et al. [21].