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Updated: Jul 8, 2026

Measurement of Chitinase Activity in Biological Samples
Published on: August 22, 2019
Serum chitotriosidase activity in patients with coronary artery disease
Bilgehan Karadag1, Mine Kucur, Ferruh K Isman
1Department of Cardiology, Cerrahpasa School of Medicine, Istanbul University, Istanbul, Turkey. karadag@istanbul.edu.tr
Insights
Serum chitotriosidase activity is elevated in patients with coronary artery disease (CAD). Higher activity levels correlate with the severity of CAD, indicating its potential as an inflammatory marker.
Area of Science:
- Biochemistry
- Immunology
- Cardiovascular Medicine
Background:
- Atherosclerosis is an inflammatory condition involving monocyte infiltration and macrophage differentiation into foam cells.
- Chitotriosidase is a quantitative protein secreted by activated macrophages.
Purpose of the Study:
- To investigate the association between serum chitotriosidase activity and atherosclerotic coronary artery disease (CAD).
Main Methods:
- 200 subjects undergoing coronary angiography were analyzed.
- Serum chitotriosidase activity was measured and correlated with CAD presence and extent.
Main Results:
- Serum chitotriosidase activity was significantly higher in CAD patients compared to controls (p<0.001).
- Activity levels showed a significant association with the extent of CAD, indicated by the number of diseased vessels (p<0.001).
Conclusions:
- Serum chitotriosidase activity serves as a robust inflammatory marker for CAD.
- Plasma chitotriosidase activity can quantitatively indicate CAD presence and disease extent.
Background:
Atherosclerosis is considered to be an inflammatory disease in which the initial process is augmented infiltration of monocytes into the vessel wall and their subsequent differentiation from macrophages into lipid-laden foam cells. Chitotriosidase is one of the most quantitative proteins secreted by activated macrophages, so the aim of this study was to investigate the association of the level of serum chitotriosidase activity with atherosclerotic coronary artery disease (CAD).
Methods And Results:
A total of 200 subjects undergoing coronary angiography were divided into 4 subgroups according to the number of diseased vessels and their serum chitotriosidase activity levels were measured. Serum chitotriosidase activity in patients with CAD was significantly higher than in normal control subjects (p<0.001). Serum chitotriosidase activity was also significantly associated with the extent of CAD as defined by the number of stenosed vessels (p<0.001).
Conclusion:
Serum chitotriosidase activity can be considered a strong inflammatory marker of CAD. Moreover, plasma chitotriosidase activity may be also regarded as a quantitative indicator of disease extent, as well as being a marker of disease presence.
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