OBJECTIVE
To study the inhibition of tumor angiogenesis by 5,2,4´-trihydroxy-6,7,5´-trimethoxyflavone (TTF1) isolated from an extract of herbal medicine Sorbaria sorbifolia.
METHODS
Angiogenic activity was assayed using the chick embryo chorioallantoic membrane (CAM) method. Microvessel density