Intensive Care Medicine

, Volume 34, Issue 7, pp 1304–1312

Pioglitazone reduces systematic inflammation and improves mortality in apolipoprotein E knockout mice with sepsis

  • Go Haraguchi
  • Hisanori Kosuge
  • Yasuhiro Maejima
  • Jun-Ichi Suzuki
  • Takasuke Imai
  • Masayuki Yoshida
  • Mitsuaki Isobe
Experimental

DOI: 10.1007/s00134-008-1024-9

Cite this article as:
Haraguchi, G., Kosuge, H., Maejima, Y. et al. Intensive Care Med (2008) 34: 1304. doi:10.1007/s00134-008-1024-9

Abstract

Objective

To determine whether peroxisome proliferator-activated receptor (PPAR) γ ligands improve survival of patients with septic shock we treated a mouse model of sepsis [apolipoprotein (Apo) E) knockout mice] with pioglitazone, a PPAR-γ ligand. ApoE knockout mice have a high mortality rate due to sepsis because the endotoxin is not cleared.

Design and setting

Prospective study in a university laboratory.

Subjects

We assorted 87 male ApoE knockout mice and 60 wild-type C57/B6 mice randomly into three groups (sepsis, pretreatment, posttreatment).

Interventions

Cecal ligation and puncture (CLP) was carried out in the sepsis and treatment groups. Mice were injected with pioglitazone (5 mg/kg per day) on the day before CLP or 6 h after surgery.

Measurements and results

Both pre- and post-CLP treatment with pioglitazone improved survival of ApoE knockout and wild-type mice. Serum levels of cytokines and chemokines and myeloperoxidase activity in lung and liver were suppressed in the pioglitazone-treated group. Pioglitazone also suppressed monocyte adhesion to vascular endothelium under flow conditions.

Conclusions

Pioglitazone improved survival of ApoE knockout mice after onset of septic shock through suppression of inflammatory responses.

Keywords

Peroxisome proliferator-activated receptor γ Sepsis Inflammation 

Supplementary material

134_2008_1024_MOESM1_ESM.ppt (962 kb)
Electronic Supplementary Material (PPT 962K)
134_2008_1024_MOESM2_ESM.ppt (168 kb)
Electronic Supplementary Material (PPT 168K)
134_2008_1024_MOESM3_ESM.doc (24 kb)
Electronic Supplementary Material (DOC 24K)

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Go Haraguchi
    • 1
    • 3
  • Hisanori Kosuge
    • 1
  • Yasuhiro Maejima
    • 1
  • Jun-Ichi Suzuki
    • 1
  • Takasuke Imai
    • 3
  • Masayuki Yoshida
    • 2
  • Mitsuaki Isobe
    • 1
  1. 1.Department of Cardiovascular MedicineTokyo Medical and Dental UniversityTokyoJapan
  2. 2.Department of Medical BiochemistryTokyo Medical and Dental UniversityTokyoJapan
  3. 3.Division of Intensive Care UnitTokyo Medical and Dental UniversityTokyoJapan

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