Advertisement

Inflammation Research

, Volume 52, Issue 2, pp 51–55 | Cite as

Antioxidative enzymes in human nasal mucosa after exposure to ozone. Possible role of GSTM1 deficiency

  • R. Otto-Knapp
  • K Jurgovsky
  • K. Schierhorn
  • G. Kunkel
Original Research Paper

Abstract:

Objective and design: Epithelial antioxidative enzymes (AOEs) are thought to be a first line of defense against reactive oxygen species as they are upregulated after exposure to ozone according to animal studies. We analysed the activities of the AOEs catalase (CAT), glutathione peroxidase (GPX), glutathione reductase (GR), superoxide dismutase (SOD) and glutathione-S-transferase (GST) in a tissue culture of human nasal mucosa and analysed the influence of GSTM1 polymorphism on AOE regulation.¶Methods: Tissue biopsies of 20 subjects were incubated for 24 h with and without 120 ppb ozone. Activities were assayed to determine what enzymatic changes had taken place, both overall and in regard to GSTM1 status.¶Results: Activities for GPX (p = 0.272) and SOD (p = 0.291) were found increased after ozone exposure. GSTM1-deficient patients showed a significantly enhanced upregulation of SOD activity (p = 0.011) compared to GSTM1 carriers.¶Conclusion: Our findings suggest that GSTM1-deficiency has an impact on AOE-regulation after ozone exposure.

Key words: Ozone – GSTM1 deficiency – Antioxidative enzymes – Nasal mucosa 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Birkhäuser Verlag, 2003

Authors and Affiliations

  • R. Otto-Knapp
    • 1
  • K Jurgovsky
    • 1
  • K. Schierhorn
    • 1
  • G. Kunkel
    • 1
  1. 1.Allergy and Asthma Clinic, Charité, Virchow Klinikum, Humboldt University, Augustenburger Platz 1, 13353 Berlin, Germany, Fax: ++49 30 4505 659 02, e-mail: DE

Personalised recommendations