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Inflamm Res. 2007 Apr;56(4):149-53.

Ketamine inhibits polymorphonuclear leucocyte CD11b expression and respiratory burst activity in endotoxemic rats.

Author information

  • 1Department of Anesthesiology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China. zqzhoujiang@hotmail.com

Abstract

OBJECTIVE AND DESIGN:

To observe the effect of ketamine on polymorphonuclear leucocytes (PMN) adhesion and respiratory burst activity in endotoxemia rats.

MATERIALS:

30 rats were randomly allocated to five groups: rats challenged with intraperitoneal injection of saline (saline group); challenged with intraperitoneal injection of LPS 10 mg/kg (LPS group); challenged with intraperitoneal injection of LPS 10 mg/kg and treated by intraperitoneal injection of ketamine 5, 25, 50 mg/kg at 0, 1, 2, 3, 4, 5 h after the injection of LPS, respectively (three ketamine treatment groups).

METHODS:

PMN respiratory burst and CD11b expression were measured with flow cytometry at the end of 1 h, 4 h, and 6 h.

RESULTS:

LPS challenge significantly increased PMN respiratory burst activity and CD11b expression when compared with the saline group (p < 0.01). There was a significant decrease in LPS-induced PMN respiratory burst activity and CD11b expression in three ketamine treatment groups when compared with LPS group (p < 0.01).

CONCLUSIONS:

Ketamine significantly inhibits PMN CD11b expression and respiratory burst activity in endotoxemic rats.

PMID:
17522812
[PubMed - indexed for MEDLINE]
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