Science Fair Project Encyclopedia
Biomarker
Biomarker is an occasionally used synonym for biosignature, which is a term used in astrobiology to indicate "a measurable phenomenon that indicates the presence of life."
In medicine, biomarkers are indicators of a particular disease state. In the past, biomarkers were primarily physiological indicators such as blood pressure or heart rate. More recently, biomarker has drifted toward being a synonym for molecular biomarker, such as elevated prostate specific antigen as a molecular biomarker for prostate cancer.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details