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Breast Cancer

New findings in the area of breast cancer described

Published in Cancer Weekly, July 26th, 2005

Investigators in the United States have published new breast cancer data.

Study 1: HER-2 overexpression inversely correlates with estrogen and progesterone receptor expression in invasive breast cancer.

"We studied the inverse relationship between HER-2 and estrogen (ER) and progesterone (PR) receptors using HER-2 testing and correlated HER-2 status with histologic features in 3,655 unselected invasive breast carcinomas.

"Immunohistochemical analysis for ER, PR, HER-2, and fluorescence in situ hybridization for HER-2 was performed," researchers in the United States report.

"ER and PR expression were decreased...

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