Biomarker
Biomarker — A measurable biological indicator used to assess a physiological state, disease process, or response to a compound in research studies.
What Is a Biomarker?
A biomarker is a measurable indicator of a biological state or condition. Peptide biomarkers are endogenous peptides whose plasma levels change in disease, providing diagnostic or prognostic information. Additionally, biomarkers are used in clinical trials to demonstrate that a peptide drug is reaching its target and producing the intended biological effect.
Biomarker Types in Peptide Research
- Pharmacodynamic: IGF-1 levels as a biomarker of GH secretagogue activity. Rise in IGF-1 confirms that ipamorelin or CJC-1295 is producing GH release
- Diagnostic: Brain natriuretic peptide (BNP) for heart failure diagnosis. Procalcitonin for bacterial infection
- Prognostic: C-peptide levels predict residual beta cell function in diabetes
- Safety: Anti-drug antibody (ADA) titers as immunogenicity biomarkers
Frequently Asked Questions
What is Biomarker?
A measurable biological indicator used to assess a physiological state, disease process, or response to a compound in research studies.
Why is Biomarker important in peptide research?
Biomarker is a fundamental concept in research as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.