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Rapid Point-of-Care Assay of Enoxaparin Anticoagulant Efficacy in Whole Blood
Published on: October 12, 2012
Assays and reference materials for current and future applications of heparins
1National Institute for Biological Standards and Control, Blanche Lane, South Mimms, Potters Bar, Hertfordshire EN63QG, UK. barbara.mulloy@nibsc.hpa.org.uk
Summary
Heparin, used for thrombosis, has diverse biological activities beyond anticoagulation. New assays and reference materials are needed to standardize its non-anticoagulant therapeutic applications.
Area of Science:
- Biochemistry
- Pharmacology
- Biomaterials
Background:
- Heparin is a complex polysaccharide utilized for thrombosis prevention and treatment.
- Its structural similarity to heparan sulfate allows for diverse biological activities beyond anticoagulation.
- These include potential anti-inflammatory and other therapeutic applications.
Purpose of the Study:
- To highlight the need for standardized assays and reference materials for non-anticoagulant heparin applications.
- To emphasize the importance of physicochemical methods for new heparin preparations.
Main Methods:
- Review of current heparin potency assays.
- Discussion of structural similarities to heparan sulfate.
- Identification of gaps in standardization for novel applications.
Main Results:
- Current assays primarily focus on heparin's anticoagulant activity for antithrombotic use.
- No established methods exist to measure heparin's potency in other therapeutic areas.
- Physicochemical methods and new in vitro assays are crucial for novel heparin preparations.
Conclusions:
- Standardized non-anticoagulant assays are essential for developing new heparin-based therapeutics.
- Development of new heparin preparations requires robust physicochemical characterization and validated assays.
- Reference materials are critical for ensuring consistency and stability across diverse heparin applications.
