Mayo Clinic’s DNA study reveals BRCA1 mutations in 3 sisters, prompts life-changing decisions

(Sisters left to right: Chris Swatfager, Cindy Larson, Carrie Patnode and Amy Scheid. Photo is courtesy of Chris Swatfager.) Sisters often share certain genetic traits, such as hair color and facial features. But for three sisters from Minnesota, they discovered a much deeper connection — a shared genetic mutation known to dramatically increase their risk for breast and ovarian cancer. Their BRCA1 variants came to light through a Mayo Clinic Center for Individualized Medicine DNA sequencing study. The…
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