The researchers succeeded in showing that a subset of low-molecular-weight proteins from the serum of patients formed predictive patterns that could be used experimentally to mark the presence of ovarian cancer.
They detected a diagnostic pattern of five proteins in the blood of women with ovarian cancer that is not found in the blood of other women. Experimentally, in a limited subset of test patients, the test has had a sensitivity of 100 percent and a specificity of 100 percent.
![Serum Proteins Can Serve as Markers](https://webarchive.library.unt.edu/eot2008/20090131051823im_/http://newscenter.cancer.gov/images/Documents/abd6d05e-f179-4ec1-8376-6d4992583274/cancer41.jpg)
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