Fig. 2From: 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 miceComparison of antimutagenicity of beer (a), NAB(A) (b), NAB(B) (c), glycine betaine (GB) (d), and pseudouridine (PU) (e) assayed with the Ames test using Salmonella typhimurium TA1535 (circle) and YG7108 (square) without metabolic activation (-S9) toward MNNG. The experiment was repeated twice and standard deviation (SD) is indicated with the bar (n = 3). NAB: nonalcoholic beerBack to article page