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Serum phospholipases A2 after aortobifemoral reconstruction
J M Grönroos1, K Kuttila, J Perttilä
1Department of Surgery, University of Turku, Finland.
European Journal of Clinical Chemistry and Clinical Biochemistry : Journal of the Forum of European Clinical Chemistry Societies
|May 1, 1995
Summary
This study found that phospholipase A2 (PLA2) activity and levels of both group I and group II PLA2 increased after aortobifemoral reconstruction surgery. Group II PLA2 levels strongly correlated with increased PLA2 activity, highlighting its role in ischemia-reperfusion injury.
Area of Science:
- Biochemistry
- Vascular Surgery
- Pathophysiology
Background:
- Phospholipase A2 (PLA2) is linked to tissue damage from ischemia and reperfusion.
- Aortobifemoral reconstruction surgery involves aortic clamping, causing ischemia and reperfusion.
- Understanding PLA2's role in this context is crucial for managing surgical complications.
Purpose of the Study:
- To investigate the catalytic activity of PLA2.
- To measure serum concentrations of group I and group II PLA2.
- To analyze these markers in patients undergoing aortobifemoral reconstruction.
Main Methods:
- Serum samples were collected from patients before and after aortobifemoral reconstruction.
- Catalytic activity concentration of PLA2 was measured.
- Mass concentrations of group I and group II PLA2 were determined using immunoassays.
Main Results:
- Both catalytic activity concentration of PLA2 and mass concentrations of group I and group II PLA2 significantly increased post-operation.
- A strong positive correlation was observed between PLA2 catalytic activity and group II PLA2 mass (r = 0.81, p < 0.001).
- No significant correlation was found between PLA2 catalytic activity and group I PLA2 mass (r = 0.12, p = 0.54).
Conclusions:
- Group II PLA2 plays a significant role in the pathogenesis of tissue injury following ischemia and reperfusion during aortobifemoral reconstruction.
- Monitoring group II PLA2 may offer insights into surgical-induced tissue damage.
- Further research could explore therapeutic strategies targeting group II PLA2.