Serum MMP-9 and Colorectal Cancer Detection
Author Information
Author(s): Klaus Jung
Primary Institution: University Hospital Charité and Berlin Institute for Urologic Research, Berlin, Germany
Hypothesis
Is serum matrix metalloproteinase 9 a useful biomarker in detection of colorectal cancer?
Conclusion
Serum collected with or without clot activator should not be used to determine circulating MMP-9 concentrations due to pre-analytical issues.
Supporting Evidence
- Serum MMP-9 concentrations do not reflect true circulating levels due to pre-analytical factors.
- Plasma MMP-9 has been shown to have better diagnostic accuracy than serum MMP-9.
- Different blood collection methods significantly affect MMP-9 concentration measurements.
Takeaway
This study shows that the way we collect blood samples can change the results of tests for a cancer marker called MMP-9, which might lead to wrong conclusions.
Methodology
Blood samples from 10 healthy adults were collected in different tubes and analyzed for MMP-9 concentrations.
Potential Biases
Potential bias due to the limited sample size and specific collection methods.
Limitations
The study only involved a small sample size of healthy adults and focused on pre-analytical conditions.
Participant Demographics
10 healthy adults
Digital Object Identifier (DOI)
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