Mitochondrial DNA mutations in breast cancer tissue and in matched nipple aspirate fluid.

Abstract excerpt

Unlike nuclear (n)DNA, of which there is one paired copy per cell, there are many copies of mitochondrial (mt)DNA per cell, making PCR amplification of mtDNA easier in samples of limited cellularity. The aims of this study were to (i) determine the mutation patterns of breast cancers through a comprehensive screen of mtDNA mutations, and (ii) assess if mutations in the cancers are also detectable in breast nipple...

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