1. 천궁약침액은 1${ imes}$에서 15.1%의 cytochrome P4501A1 저해효과를 나타냈으며 그 억제효과는 약침액의 농도가 높을수록 증가하였다. 2 천궁약침액은 benzo[a]pyrene과 세포의 DNA 결합을 유의성있게 억제시켰다. 이상의 결과를 종합해 볼때 천궁약침액은 효과적으로 cytochrome P4501A1 효소를 저해했으며, 발암물질과 DNA의 결합을 억제시켜 외부 물질 또는 대사물에 의해 일어날 수 있는 돌연변이와 암 발생을 억제할 것으로 사료된다.
The effects of Cnidium officinale Makino aqua-acupuncture solution (COMAS) and Cnidium officinale Makino water-extraced solution (COMWS) on the CYP1A1 activity and benzo[a]pyrene(B[a]P)-DNA adduct formation were examined. There were 6.8%, 12.1%, 15.1%, 18.3% and 22.6% inhibition in the activity of cytochrome 4501A1 enzyme with the treatment of $0.1{ imes},;0.5{ imes},;1{ imes},;3{ imes},;and;5{ imes}$ COMAS, respectively. At concentration of $0.1{ imes}$ COMAS, the binding of $[^3H]B[a]P$ metabolites to DNA of NCTC-clone 1469 cell was significantly inhibited by 56.9%. These results suggest that COMAS has chemopreventive potential by inhibiting cytochrome P4501A1 activity and benzo[a]pyrene-DNA adduct formation.
