Fig. 1From: Chemo-preventive effects and antitumorigenic mechanisms of beer and nonalcoholic beer toward 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) - induced lung tumorigenesis in A/J miceEffect of beer (a, circle), low alcoholic beer (LAB) (a, square), ethanol (a, triangle), NAB(A) (b, circle), NAB(B) (b, square), NAB(D) (c, circle), NAB(E) (c, square), and NAB(F) (c, triangle) on the mutagenicity of 1-methyl-3-nitro-1-nitrosoguanidine (MNNG), respectively. Antimutagenicity was assayed with the Ames test using Salmonella typhimurium TA1535 (-S9). The experiment was repeated twice and standard deviation (SD) is indicated with the bar (n = 3). NAB: nonalcoholic beerBack to article page