Holiday Notification: Cayman Chemical will be closed Monday, May 28, 2012, in observance of the Memorial Day holiday.
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Carnosol is one of the phenolic antioxidants present in extracts of the herb rosemary (Rosmarinus officinalis). Carnosol inhibits the formation of tumors derived using irritants such as TPA and DMBA in murine models of carcinogenesis.1 The effective dose reported is 1-10 µM topically or 6 µg/ml when added to supernatants of cultured cells.2 Addition of rosemary extracts to the diet as a 1% supplement by weight was also found to decrease the frequency of DMBA-DNA adducts.1
1
Singletary, K., MacDonald, C., and Wallig, M. Inhibition by rosemary and carnosol of 7,12-dimethylbenz[a]anthracene (DMBA)-induced rat mammary tumorigenesis and in vivo DMBA-DNA adduct formation. Cancer Lett10443-48(1996).
2
Chan, M.M., Ho, C.T., and Huang, H.I. Effects of three dietary phytochemicals from tea, rosemary, and turmeric on inflammation-induced nitrite production.. Cancer Lett9623-29(1995).
Singletary, K., MacDonald, C., and Wallig, M. Inhibition by rosemary and carnosol of 7,12-dimethylbenz[a]anthracene (DMBA)-induced rat mammary tumorigenesis and in vivo DMBA-DNA adduct formation. Cancer Lett10443-48(1996).
Chan, M.M., Ho, C.T., and Huang, H.I. Effects of three dietary phytochemicals from tea, rosemary, and turmeric on inflammation-induced nitrite production.. Cancer Lett9623-29(1995).
Carnosol is available in the following screening
library: