Analysis of the aromatase cytochrome P450 gene in human breast cancers

Abstract
Aromatase activity may be detected in most, but not all, breast cancers, and in certain tumours there appears to be decreased sensitivity to the aromatase inhibitor 4-hydroxyandrostenedione (4-OHA). The aims of the present study were to measure aromatase activity, and its sensitivity to 4-OHA, in breast tumours, and to examine the CYP19 gene encoding the aromatase cytochrome P450 (P450arom) for the presence of mutations.

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