Asafoetida inhibits early events of carcinogenesis - A chemopreventive study

Ferula (a genus of many species) commonly known as asafoetida is used as a flavoring agent in food and is used as a traditional medicine for many dise ases in many parts of world. In the current investigation, we report the an tioxidant and anticarcinogenic potential of asafoetida (Ferula narthex) in swiss albino mice. A single dose of TPA (20nmo1/0.2 mi acetone /animal), a known tumor promoter decreased the cellular antioxidant level significantly (p<0.01) when applied topically to mice skin. It also induced the ODC acti vity, rate of DNA synthesis, hydrogen peroxide level, xanthine oxidase acti vity and protein carbonyl content in mice skin significantly (p<0.01). Thes e events are early biomarkers of carcinogenesis. However, the pretreatment of animals with asafoetida (300, 400 and 500 mug/200 mul acetone / animal) caused the reversal of all events significantly (p<0.01). The pretreament o f animals with asafoetida recovered the antioxidant level and reversed the induced ODC activity and DNA synthesis significantly (p<0.01). We conclude that asafoetida is a potent antioxidant and can afford protection against f ree radical mediated diseases such as carcinogenesis. (C) 2001 Elsevier Sci ence Inc. All rights reserved.