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N-Acetyltransferases, sulfotransferases and heterocyclic amine activation in the breast.
Heterocyclic amines are mammary carcinogens in rats and their N-hydroxy metabolites are substrates for subsequent metabolic activation by N-acetyltransferases (NAT) and sulfotransferases (SULT) in man. We investigated the expression of thes…
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Pathways of heterocyclic amine activation in the breast: DNA adducts of 2-amino-3-methylimidazo[4,5-f]quinoline (IQ) formed by peroxidases and in human mammary epithelial cells and fibroblasts.
Most human mammary carcinomas originate in the epithelial cells of the breast ducts. A potential role of heterocyclic amines (HAs) in the aetiology of this disease has led us to investigate peroxidase-catalysed and stromal (non-epithelial) …
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DNA adducts in human breast tissue: association with N-acetyltransferase-2 (NAT2) and NAT1 genotypes.
The etiology of human breast cancer is poorly understood, but circumstantial evidence points toward exogenous genotoxins as causative agents; they are believed to exert their carcinogenic action by binding to DNA. Because this binding is of…