Serum DKK-1 (DKK-1)
Secretory protein that binds LRP5/6 and Kremen co-receptors, inducing rapid LRP endocytosis and blocking canonical Wnt bone formation.
Standard vs. Optimal Reference Rangespmol/L
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.
15 - 55 pmol/L
General reference distribution across unselected commercial populations.
20 - 45 pmol/L
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Secreted by malignant multiple myeloma plasma cells and inflamed rheumatoid synovium, suppressing osteoblast repair while promoting osteolytic lesions.
Differential Diagnosis
Elevated Levels (DKK-1 High)
- •Multiple myeloma osteolytic bone disease
- •Rheumatoid arthritis with active structural erosions
- •Ankylosing spondylitis during anti-DKK1 flares
Low Levels (DKK-1 Low)
- •Intact Wnt-mediated bone formation
- •Bone repair and remodeling
Technical Reference & Deep Dive
Biochemistry & Enzymatic Pathways
Longevity Risk Architecture & Epidemiology
Pre-Analytical Caveats & Diagnostic Workup
Pre-Analytical Considerations:
Specimen collection should follow standardized phlebotomy protocols. Protect from hemolysis, centrifuge promptly, and freeze serum or plasma if testing is delayed. Patient should be in a resting, fasting state where indicated.
Reflexive Testing Protocol:
- Confirmatory testing and secondary biomarker quantification for DKK-1
- Targeted organ system imaging or functional dynamic testing related to wnt inhibitor & rheumatoid erosions
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Serum DKK-1 - The New England Journal of Medicine (2021). PMID: 34190124
- [2]DKK-1 Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35422901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Serum DKK-1 (DKK-1) into overall healthspan optimization.