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Breast Cancer

Mammographic density and bone mineral density unrelated to genetic determinants

According to a study from Australia, "Mammographic density and bone mineral density, risk factors for breast cancer and osteoporotic fractures, respectively, are both thought to reflect cumulative exposure to estrogen and are highly heritable. We asked if there was overlap between the genes that explain their variances."

"We studied 63 monozygous and 71 dizygous female twin pairs ages 38 to 71 years (mean, 50 years)," explained G.S. Dite and colleagues, University of Melbourne. "Absolute and percent mammographic densities were measured by a...

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