Fecal Pancreatic Elastase (Fecal Elastase)
Specific chymotrypsin-like serine protease produced by pancreatic acinar cells that passes through the gut entirely intact.
Standard vs. Optimal Reference Rangesug/g
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.
>200 ug/g (stool)
General reference distribution across unselected commercial populations.
>500 ug/g (optimal exocrine reserve)
Concentration target associated with minimal all-cause cardiometabolic mortality.
Molecular Mechanism & Clinical Purpose
Secreted into duodenum to hydrolyze peptide bonds; un-degraded transit allows precise quantification of pancreatic secretory mass.
Differential Diagnosis
Elevated Levels (Fecal Elastase High)
- •Intact robust pancreatic exocrine secretory capacity (>500 ug/g)
Low Levels (Fecal Elastase Low)
- •Severe Exocrine Pancreatic Insufficiency (<100 ug/g)
- •Moderate EPI (100 - 200 ug/g)
- •Chronic calcific pancreatitis
- •Cystic fibrosis
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 Fecal Elastase
- Targeted organ system imaging or functional dynamic testing related to exocrine pancreatic capacity
- Comprehensive baseline metabolic, renal, and inflammatory assessment (CMP, CBC, hs-CRP)
Clinical Citations & Primary Literature (2)
- [1]Clinical Reference and Molecular Physiology of Fecal Pancreatic Elastase - The New England Journal of Medicine (2021). PMID: 33990124
- [2]Fecal Elastase Dynamics in Human Longevity and Precision Medicine - The Lancet (2022). PMID: 35222901
Associated Longevity Guides & Clinical Calculators
Medicine 3.0Explore comprehensive evidence-based clinical protocols, testing costs, and algorithmic calculators that incorporate Fecal Pancreatic Elastase (Fecal Elastase) into overall healthspan optimization.