Document Detail

Effects of iloprost, a stable prostacyclin analog, on intestinal leukocyte adherence and microvascular blood flow in rat experimental endotoxemia.
MedLine Citation:
PMID:  11445699     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To investigate the effects of iloprost, a stable prostacyclin analog, on leukocyte adherence in intestinal venules and intestinal microvascular blood flow in experimental endotoxemia. DESIGN: Prospective, randomized, controlled animal study. SETTING: Experimental laboratory. SUBJECTS: Twenty-one male Wistar rats weighing 190 +/- 40 g. INTERVENTIONS: The rats were divided equally into three groups: the first was a control group; the second received endotoxin (20 mg/kg lipopolysaccharide from Escherichia coli O55:B5 intravenously); and the third received endotoxin and intravenous iloprost infusion (2 MEASUREMENTS AND MAIN RESULTS: The distal small intestine of the animals was examined by using intravital fluorescence videomicroscopy 2 hrs after endotoxin challenge. Leukocytes were stained in vivo by means of rhodamine 6G. Intestinal microvascular blood flow was measured by laser Doppler flowmetry in the terminal ileum. Iloprost treatment significantly attenuated the count of adherent leukocytes in collecting venules (control, 61 +/- 10 n/mm2; lipopolysaccharide, 364 +/- 60 n/mm2; iloprost, 232 +/- 29 n/mm2; p <.05) and in postcapillary venules (control, 96 +/- 14 n/mm2; lipopolysaccharide, 470 +/- 21 n/mm2; iloprost 390 +/- 41 n/mm2; p <.05). Intestinal microvascular blood flow was decreased significantly in the lipopolysaccharide group (-49%), whereas iloprost-treated animals showed no significant difference compared with the control group. CONCLUSIONS: The study demonstrated that administration of iloprost attenuated leukocyte adherence in postcapillary and collecting intestinal venules and improved intestinal microvascular blood flow. Thus, iloprost treatment may impact endotoxin-induced intestinal injury.
C Lehmann; J P König; J Dettmann; J Birnbaum; W J Kox
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Critical care medicine     Volume:  29     ISSN:  0090-3493     ISO Abbreviation:  Crit. Care Med.     Publication Date:  2001 Jul 
Date Detail:
Created Date:  2001-07-10     Completed Date:  2001-08-09     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0355501     Medline TA:  Crit Care Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1412-6     Citation Subset:  AIM; IM    
Klinik für Anästhesiologie und operative Intensivmedizin, Universitätsklinikum Charité, Campus Charité Mitte, Humboldt-Universität zu Berlin, Berlin, Germany.
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MeSH Terms
Analysis of Variance
Blood Flow Velocity
Cell Adhesion / drug effects*
Endotoxemia / drug therapy*
Iloprost / pharmacology*
Intestine, Small / blood supply*,  drug effects
Laser-Doppler Flowmetry
Leukocytes / drug effects*
Microcirculation / drug effects
Microscopy, Fluorescence
Microscopy, Video
Platelet Aggregation Inhibitors / pharmacology*
Prospective Studies
Rats, Wistar
Reg. No./Substance:
0/Platelet Aggregation Inhibitors; 78919-13-8/Iloprost

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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