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Matrix metalloproteinase-9 concentrations in critically ill patients
K A Yassen1, H F Galley, N R Webster
1Liver Institute, Menoufiya University, Egypt.
Anaesthesia
|August 9, 2001
Summary
Matrix metalloproteinase-9 (MMP-9) levels are elevated in critically ill patients, but not specifically in sepsis. MMP-9 appears to be a general indicator of systemic inflammation rather than a sepsis-specific biomarker.
Area of Science:
- Biochemistry
- Immunology
- Critical Care Medicine
Background:
- Matrix metalloproteinase-9 (MMP-9) plays a role in cytokine processing, particularly during sepsis.
- Sepsis is a life-threatening condition characterized by a dysregulated host response to infection.
Purpose of the Study:
- To investigate matrix metalloproteinase-9 (MMP-9) concentrations in critically ill patients with and without sepsis.
- To determine if MMP-9 serves as a specific biomarker for sepsis.
Main Methods:
- Measured total MMP-9 concentrations on days 1, 2, and 3 in three groups: severe sepsis patients, critically ill non-septic patients, and healthy controls.
- Compared MMP-9 levels across groups and analyzed differences between survivors and non-survivors.
Main Results:
- MMP-9 concentrations were significantly elevated in both septic and non-septic critically ill patients compared to healthy subjects.
- No significant difference in MMP-9 levels was observed between patients with sepsis and those without sepsis.
- MMP-9 levels did not change over time and showed no difference between survivors and non-survivors.
Conclusions:
- Matrix metalloproteinase-9 (MMP-9) is a non-specific marker of systemic inflammation in critically ill patients.
- MMP-9 does not appear to be a specific biomarker for diagnosing sepsis.
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