A Biological molecule present in blood, other bodily fluids, or tissues that indicates the presence of a normal or aberrant process, as well as a condition or illness. A biomarker can be used to assess how effectively the body reacts to a disease or condition therapy. Also known as a molecular marker and a signature molecule.
A Biomarker (short for biological marker) is an objective assessment of what is happening in a cell or organism at any particular time. Biomarkers can act as health-related early warning systems. A Blood Based Biomarker (a quantifiable DNA, RNA, or protein component in the patient's blood) is a component that identifies disorders such as cancer or Alzheimer's disease. Blood-based biomarkers can assist quantify health and disease by providing a measure of an individual's biochemistry from a simple patient blood sample.
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