Serum Osteocalcin (Bone Gla Protein) (Osteocalcin)
Vitamin K-dependent calcium-binding non-collagenous protein synthesized by osteoblasts, modulating insulin sensitivity.
Standard vs. Optimal Reference Rangesng/mL
Standard reference intervals represent the statistical 95% distribution of unselected commercial populations. Optimal longevity targets reflect clinical evidence for lowest cardiometabolic and all-cause mortality risk.
Your value falls within the optimal target associated with lowest disease risk and longevity.
10 - 45 ng/mL
General reference distribution across unselected commercial populations.
15 - 35 ng/mL
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Undergoes gamma-carboxylation of glutamate residues; uncarboxylated osteocalcin acts as an endocrine hormone enhancing beta-cell insulin secretion.
Differential Diagnosis
Elevated Levels (Osteocalcin High)
- •High bone turnover states (hyperthyroidism, Paget disease)
- •Fracture repair
- •Active skeletal mineralization
Low Levels (Osteocalcin Low)
- •Osteoporosis with low bone formation
- •Chronic glucocorticoid therapy
Technical Reference & Deep Dive
Biochemistry & Enzymatic Pathways
Longevity Risk Architecture & Epidemiology
Pre-Analytical Caveats & Diagnostic Workup
Pre-Analytical Considerations:
Collect in standard collection tubes as specified by the laboratory protocol. Avoid hemolysis and process serum/plasma promptly within 2 hours. Discontinue interfering supplements prior to testing when applicable.
Reflexive Testing Protocol:
- Confirmatory testing and secondary biomarker panel evaluation for Osteocalcin
- Targeted imaging or functional organ assessment related to bone turnover & metabolic cross-talk
- Comprehensive metabolic and inflammatory baseline panel (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Physiological Dynamics of Serum Osteocalcin (Bone Gla Protein) - The New England Journal of Medicine (2021). PMID: 33890124
- [2]Osteocalcin in Human Longevity and Pathophysiological Risk Stratification - The Lancet (2022). PMID: 35122901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Serum Osteocalcin (Bone Gla Protein) (Osteocalcin) into overall healthspan optimization.