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Etiological and preventive implications in alcohol carcinogenesis
Abstract:
The current state of knowledge of the epidemiological association of alcohol and tobacco consumption with cancers of the head and neck in humans is reviewed. The possible involvement of alcohol-associated nutritional deficiencies in the etiology of head and neck cancer is considered. Data are presented which indicate that in vitro metabolism of the hepatocarcinogen N-nitrosopyrrolidine is increased in microsomal fractions isolated from ethanol-consuming hamsters. Relevant studies in experimental animals are discussed in the context of possible mechanisms that could account for the increased risk of cancer in heavy drinkers who smoke.
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