Fig. 4From: 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 miceA representative tumor (adenoma/adenocarcinoma) corresponding to the nodule counted microscopically and the alveolar area around the tumor in the A/J mice at 30 weeks of age treated with 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) alone (group I, a; group VII, d), NNK + GB (group II, b), NNK + beer (group III, 4c), NNK + NAB(A) (group VIII, e) and NNK + NAB(B) (group IX, f). GB: glycine betaine; NAB: nonalcoholic beerBack to article page