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Overexpression of PARP1 mRNA and protein in BRCA-mutated ovarian cancer. A, Relative PARP1 mRNA levels were measured by real-time quantitative PCR. B i, Sections were subjected to immunostaining for PARP1 in normal and ovarian cancer tissue. Arrow shows positive staining for PARP1 in the nuclei. B ii, Summary of the percentages of PARP1-positive cells from the measurements shown in (B i). Bar graphs show mean ± SD. Magnification is 400 × .
