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Inactivation of the p53 gene is one of the most frequent genetic alterations in carcinogenesis. We studied gene mutations, the mRNA expression of p53, and the accumulation of p53 protein in chemical hepatocarcinogenesis in rats. Samples consisting of 44 precancerous foci and 18 cancerous foci were collected by laser capture microdissection (LCM), and analyzed for mutations in rat p53 gene exons 5-8...
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