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Takakuwa, T. et al.

Relationships between plasma levels of type-II phospholipase A2, PAF-acetylhydrolase, leukotriene B4, complements, endothelin-1, and thrombomodulin in patients with sepsis.

We determined the plasma levels of type-II phospholipase A2 (type II PLA2), platelet-activating factor acetylhydrolase ( PAFAH) leukotriene B4 (LTB4) and of several complements (C3a, C4a, and C5a), which are considered to be among the cytokines and eicosanoids involved in vascular endothelial disorders and that vary in concentration during sepsis. We investigated the relationship between those levels and those of ET-1 and TM levels in plasma. Plasma levels of type II PLA2, PAFAH, LTB4, C3a, C4a, ET-1, and TM at the time that sepsis was diagnosed in 30 patients were 218.3 +/- 179.9 ng/ml, 23.92 +/- 9.66 nmol/min/ml, 90.35 +/- 31.49 pg/ml, 838.73 +/- 2.30 pg/ml, 1951.46 +/- 1697.78 pg/ml, 6.98 +/- 4.08 pg/ml and 7.80 +/- 3.34 ng/ml, respectively. The C5a plasma level was below the limit of detection in all cases. There were significant correlations between type II PLA2 and ET-1 plasma levels (r = 0.39, p = 0.032) and C3a and ET-1 plasma levels (r = 0.60, p = 0.03). There were also significant correlations between type II PLA2 and TM levels in plasma (r = 0.76, p = 0.0017), PAFAH and TM plasma levels (r = 0.53, p = 0.037), LTB4 and TM plasma levels (r = 0.46, p = 0.016) and C4a and TM plasma levels (r = 0.58, p = 0.037). Results suggest that the elevation of type II PLA2, PAFAH, LTB4 and complement in plasma is involved in vascular endothelial disorders in patients with sepsis.[1]

References

Relationships between plasma levels of type-II phospholipase A2, PAF-acetylhydrolase, leukotriene B4, complements, endothelin-1, and thrombomodulin in patients with sepsis. Takakuwa, T., Endo, S., Nakae, H., Suzuki, T., Inada, K., Yoshida, M., Ogawa, M., Uchida, K. Res. Commun. Chem. Pathol. Pharmacol. (1994) [Pubmed]

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