The Ten Hallmarks of Cancer

In two landmark scientific papers, Douglas Hanahan of the University of California, San Francisco and Robert Weinberg of the Massachusetts Institute of Technology described the Hallmarks of Cancer this way: Self-Sufficient Cell Division Cells are organized into...

PSA testing

What is the prostate-specific antigen (PSA) test? Prostate-specific antigen (PSA) is a protein produced by cells of the prostate gland. The PSA test measures the level of PSA in the blood.  Because PSA is produced by the body and can be used to detect disease, it is...