Critical Care

, 13:P357 | Cite as

Angiopoietin-2 is a mediator involved in the advent of hypotension following endotoxin shock

  • PD Carrer
  • V Grosomanidis
  • B Fyntanidou
  • S Panidis
  • K Kotzampassi
  • EJ Giamarellos-Bourboulis
Poster presentation
  • 514 Downloads

Keywords

Public Health Escherichia Coli Catheter Endothelial Cell Emergency Medicine 

Introduction

Angiopoietin-2 (Ang-2) is a mediator produced by endothelial cells [1]. It is in doubt whether its production in the intubated septic host is due to an effect of anesthetic medication or to the sepsis process. The present study attempted to provide an answer.

Methods

In 10 mechanically ventilated pigs, anesthesia was maintained by sevoflurane inhalation. Then shock was induced by the intravenous administration of 25 mg/kg lipopolysaccharide (LPS) of Escherichia coli 111: B4 in eight pigs; two were controls. Blood was collected by a Swan–Ganz catheter and by a peripheral vein. Ang-2 was estimated by an enzyme immunoassay.

Results

The median Ang-2 of the peripheral circulation among controls and pigs at shock was at baseline 1,403.2 and 2,390.6 pg/ml (P = NS), respectively; at 1 hour 914.2 and 2,192.5 pg/ml (P = 0.048), respectively; and at 2 hours 2,013 and 1,738.7 pg/ml (P = NS). Respective values of the lung circulation were 995.8 and 1,738.7 pg/ml at baseline (P = NS); 831.3 and 1,663.3 pg/ml at 1 hour (P = NS); and at 2 hours 943.8 and 1,757.8 pg/ml (P = NS).

Conclusion

Ang-2 is a mediator involved in the advent of shock not influenced by the administration of sevoflurane.

References

  1. 1.
    Giamarellos-Bourboulis EJ, et al.: Kinetics of angiopoietin-2 in serum of multi-trauma patients: correlation with patient severity. Cytokine 2008, 44: 310-313. 10.1016/j.cyto.2008.09.003PubMedCrossRefGoogle Scholar

Copyright information

© Carrer et al; licensee BioMed Central Ltd. 2009

This article is published under license to BioMed Central Ltd.

Authors and Affiliations

  • PD Carrer
    • 1
  • V Grosomanidis
    • 2
  • B Fyntanidou
    • 2
  • S Panidis
    • 2
  • K Kotzampassi
    • 2
  • EJ Giamarellos-Bourboulis
    • 1
  1. 1.University of Athens Medical SchoolAthensGreece
  2. 2.University of Thessaloniki Medical SchoolThessalonikiGreece

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