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Leukotriene B4 in hemodialysis
A Tridon1, E Albuisson, P Deteix
1Laboratoire d'Immunologie, Faculté Médecine Pharmacie, Clermont-Ferrand, France.
Artificial Organs
|October 1, 1990
Summary
Leukotriene B4, an indicator of leukocyte activation, moderately increased during hemodialysis but returned to baseline. This suggests direct interaction with dialysis membranes may cause inflammation.
Area of Science:
- Biochemistry
- Immunology
- Nephrology
Background:
- Leukotrienes are inflammatory mediators derived from arachidonic acid.
- Leukotriene B4 (LTB4) indicates leukocyte activation, particularly in response to artificial surfaces.
- Hemodialysis involves artificial membranes that may trigger inflammatory responses.
Purpose of the Study:
- To investigate Leukotriene B4 levels during hemodialysis.
- To assess if LTB4 indicates leukocyte activation by different dialysis membranes.
- To explore the role of LTB4 in hemodialysis-associated inflammation.
Main Methods:
- Plasmatic LTB4 levels were measured in patients undergoing hemodialysis.
- Measurements were taken at three time points (baseline, 15 min, 180 min) during dialysis.
- Three different membranes (one cellulosic, two synthetic) were used.
Main Results:
- A moderate increase in LTB4 was observed at 15 minutes, consistent across all membrane types.
- LTB4 levels returned to baseline by 180 minutes.
- The findings indicate leukocyte activation directly related to dialysis membranes, with possible complement involvement.
Conclusions:
- Leukotriene B4 production during hemodialysis signifies leukocyte activation.
- Direct interaction with dialysis membranes is a likely cause of this activation.
- LTB4 is identified as an inflammatory mediator in the hemodialysis process.