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Published on: November 8, 2010
Matrix Metalloproteinase-9 and Tissue Inhibitor of Matrix Metalloproteinase-1 in Sepsis after Major Abdominal Surgery
Suzana Bojic1, Jelena Kotur-Stevuljevic2, Aleksandra Aleksic1
1Department of Anaesthesiology and Intensive Care, CHC Bezanijska Kosa, 11000 Belgrade, Serbia.
Background:
The role of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in sepsis after major abdominal surgery and sepsis-associated organ dysfunction is unexplored.
Materials And Methods:
Fifty-three patients with sepsis after major abdominal surgery were compared to 50 operated and 50 nonoperated controls. MMP-9, TIMP-1, biomarkers of inflammation, kidney and liver injury, coagulation, and metabolic disorders were measured daily during 96 h following diagnosis of sepsis and once in controls. MMP-9/TIMP-1 ratios and disease severity scores were calculated. Use of vasopressors/inotropes, mechanical ventilation, and survival were recorded.
Results:
Septic patients had lower MMP-9 and MMP-9/TIMP-1 ratios but higher TIMP-1 levels compared to controls. AUC-ROC for diagnosis of sepsis was 0.940 and 0.854 for TIMP-1 and 0.924 and 0.788 for MMP-9/TIMP-1 ratio (sepsis versus nonoperated and sepsis versus operated controls, resp.). Lower MMP-9 and MMP-9/TIMP-1 ratio and higher TIMP-1 levels were associated with shorter survival. MMP-9, TIMP-1, and MMP-9/TIMP-1 ratio correlated with biomarkers of inflammation, kidney and liver injury, coagulation, metabolic disorders, and disease severity scores. Use of vasopressors/inotropes was associated with higher TIMP-1 levels.
Conclusions:
MMP-9, TIMP-1, and MMP-9/TIMP ratio were good diagnostic or prognostic biomarkers of sepsis after major abdominal surgery and were linked to sepsis-associated organ dysfunction.
Insights
Matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) show promise as biomarkers for diagnosing and predicting sepsis after major abdominal surgery. These markers correlate with organ dysfunction and patient survival.
Area of Science:
- Biochemistry
- Surgical Oncology
- Critical Care Medicine
Background:
- The role of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in sepsis following major abdominal surgery remains unclear.
- Sepsis-associated organ dysfunction requires better diagnostic and prognostic tools.
Purpose of the Study:
- To investigate the diagnostic and prognostic value of MMP-9 and TIMP-1 in patients with sepsis after major abdominal surgery.
- To explore the association between MMP-9/TIMP-1 ratios and sepsis-related organ dysfunction.
Main Methods:
- A comparative study involving 53 septic patients, 50 operated controls, and 50 nonoperated controls.
- Daily measurements of MMP-9, TIMP-1, inflammation biomarkers, and organ injury markers for 96 hours post-sepsis diagnosis.
- Calculation of MMP-9/TIMP-1 ratios, disease severity scores, and recording of clinical outcomes including survival.
Main Results:
- Septic patients exhibited lower MMP-9 and MMP-9/TIMP-1 ratios, and higher TIMP-1 levels compared to controls.
- TIMP-1 and MMP-9/TIMP-1 ratio demonstrated high diagnostic accuracy for sepsis.
- Lower MMP-9/TIMP-1 ratios and higher TIMP-1 levels were linked to poorer survival and correlated with inflammation, organ injury, and disease severity.
Conclusions:
- MMP-9, TIMP-1, and their ratio are valuable diagnostic and prognostic biomarkers for sepsis post-major abdominal surgery.
- These biomarkers are significantly associated with the severity of sepsis-associated organ dysfunction.
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