digestive/alimentary system
• the proliferative zone is enlarged
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• colonocyte proliferation is significantly increased
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endocrine/exocrine glands
• the proliferative zone is enlarged
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homeostasis/metabolism
• the ratio of S-adenosylmethionine to S-adenosylhomocysteine is decreased in the plasma
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• 8 weeks after treatment with azoxymethane more aberrant crypts per focus are found in heterozygotes compared to wild-type mice
• 38 weeks after treatment with azoxymethane, inflammatory lesion size is increased however the number of lesions is the same as in wild-type mice
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