A comparison of the phototumorigenic potential of 8-MOP and 5-MOP in hairless albino mice exposed to solar simulated radiation

Abstract
Hairless albino mice were treated with topically applied 8-methoxypsoralen and 5-methoxypsoralen at 2 concentrations and exposed to solar simulated radiation. Both these compounds significantly increased the incidence of cutaneous tumors when compared with controls irradiated after treatment with vehicle. This effect was related to psoralen concentration and at the 2 concentrations investigated there was no significant difference between the compounds.