Word: tumors
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BRCA1, a gene believed to suppress tumor development, has recently been linked to breast cancer. Altered forms of BRCA1, which occur in one woman in 200, prevent it from functioning properly, and tumors can begin to grow. Another gene, p53, has also been determined to be a useful indicator of many cancers, including breast cancer...
...past five years, scientists have studied several different genes thought to be related to breast cancer. If several genes can be identified as positively correlated to breast cancer incidence, doctors can then screen women and identify those high-risk women who possess the genes before a tumor has actually formed...
Clinical studies involve developing better methods of screening women to determine whether or not a tumor is present and treating those who test positive accordingly...
Unfortunately, physicians are able to characterize only a fraction of breast cancer patients as belonging to the "high risk" category before a tumor is actually identified...
Since it is difficult to predict who will develop a tumor, doctors must develop methods by which to identify a growth in its early stages. This identification is extremely important in determining the success of treatment...