Biomarkers

**Definition:** Measurable and quantifiable biological parameters (e.g., specific enzyme concentration, specific hormone concentration, specific gene phenotype distribution in a population, presence of biological substances) which serve as indices for health- and physiology-related assessments, such as disease risk, psychiatric disorders, ENVIRONMENTAL EXPOSURE and its effects, disease diagnosis; METABOLIC PROCESSES; SUBSTANCE ABUSE; PREGNANCY; cell line development; EPIDEMIOLOGIC STUDIES; etc.

**Tree numbers:** - D23.101

**Synonyms:** - Biomarker - Marker, Biological - Markers, Biological - Biological Markers - Biologic Markers - Biologic Marker