Indicator Explainer
Chromogranin-A
Chromogranin-A (457 aa, ~51 kDa) is encoded by the human CHGA gene. This protein plays a role in the modulation of both blood pressure and pancreatic release of insulin.
This page explains what the indicator is and how results are interpreted in general terms. Reference ranges depend on the laboratory, the method, and your own situation — no single “normal value” applies to everyone. This page is health information, not a diagnosis. For symptoms, treatment, or urgent concerns, contact a healthcare professional.
When it is tested
Source: National Cancer Institute, NCI Thesaurus 26.09d, C17284. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-20. No individual clinical interpretation or human reviewer is asserted.
Reading results
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also Known As
References
- NCI Thesaurus 26.09d — Chromogranin-A (C17284)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C17284. NCI definition, reproduced without modification under CC BY 4.0.
- Use of plasma chromogranin a epitopes vasostatin and catestatin as biomarkers for catecholamine-producing tumours in dogs. — BMC Vet Res, 2026-10-16 (PMID 42897632; literature)
- Association of serum chromogranin A and carcinoembryonic antigen with prevalent metastatic disease in pancreatic neuroendocrine neoplasms. — Pol Arch Intern Med, 2026-10-01 (PMID 42820656; literature)