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Biol Pharm Bull. 2002 Nov;25(11):1488-90.

Inhibitory effect of stevioside on tumor promotion by 12-O-tetradecanoylphorbol-13-acetate in two-stage carcinogenesis in mouse skin.

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1
College of Pharmacy, Nihon University, Chiba, Japan. yasukawa@pha.nihon-u.ac.jp

Abstract

Four steviol (ent-kaurene-type diterpenoid) glycosides, stevioside, rebaudiosides A and C, and dulcoside A, have been isolated from Stevia rebaudiana BERTONI. These compounds showed strong inhibitory activity against 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation in mice. The 50% inhibitory dose of these compounds for TPA-induced inflammation was 54.1-291.6 micro g/ear. Furthermore, at 1.0 and 0.1 mg/mouse of stevioside mixture, the mixture of these compounds markedly inhibited the promoting effect of TPA (1 micro g/mouse) on skin tumor formation initiated with 7,12-dimethylbenz[a]anthracene (50 micro g/mouse).

PMID:
12419967
[Indexed for MEDLINE]
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