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Ozone inhalation modifies the rat liver proteome
Journal article   Open access   Peer reviewed

Ozone inhalation modifies the rat liver proteome

Whitney S. Theis, Kelly K. Andringa, Telisha Millender-Swain, Dalea A. Dickinson, Edward M. Postlethwait and Shannon M. Bailey
Redox biology, Vol.2(1), pp.52-60
01/01/2014
DOI: 10.1016/j.redox.2013.11.006
PMCID: PMC4297937
PMID: 25544660
url
https://doi.org/10.1016/j.redox.2013.11.006View
Published (Version of record) Open Access

Abstract

Ozone (O-3) is a serious public health concern. Recent findings indicate that the damaging health effects of O-3 extend to multiple systemic organ systems. Herein, we hypothesize that 03 inhalation will cause downstream alterations to the liver. To test this, male Sprague-Dawley rats were exposed to 0.5 ppm O-3 for 8 h/day for 5 days. Plasma liver enzyme measurements showed that 5 day 03 exposure did not cause liver cell death. Proteomic and mass spectrometry analysis identified 10 proteins in the liver that were significantly altered in abundance following short-term O-3 exposure and these included several stress responsive proteins. Glucose regulated protein 78 and protein disulfide isomerase increased, whereas glutathione S-transferase M1 was significantly decreased by O-3 inhalation. In contrast, no significant changes were detected for the stress response protein home oxygenase-1 or cytochrome P450 2E1 arid 2B in liver of O-3 exposed rats compared to controls. In summary, these results show that an environmentally relevant exposure to inhaled O-3 can alter the expression of select proteins in the liver. We propose that O-3 inhalation may represent an important unrecognized factor that can modulate hepatic metabolic functions. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.
Biochemistry & Molecular Biology Life Sciences & Biomedicine Science & Technology

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