Abstract：
:Ozone (O3) is a serious public health concern. Recent findings indicate that the damaging health effects of O3 extend to multiple systemic organ systems. Herein, we hypothesize that O3 inhalation will cause downstream alterations to the liver. To test this, male Sprague-Dawley rats were exposed to 0.5ppm O3 for 8h/day for 5 days. Plasma liver enzyme measurements showed that 5 day O3 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 O3 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 O3 inhalation. In contrast, no significant changes were detected for the stress response protein heme oxygenase-1 or cytochrome P450 2E1 and 2B in liver of O3 exposed rats compared to controls. In summary, these results show that an environmentally-relevant exposure to inhaled O3 can alter the expression of select proteins in the liver. We propose that O3 inhalation may represent an important unrecognized factor that can modulate hepatic metabolic functions.
journal_name
Redox Bioljournal_title
Redox biologyauthors
Theis WS,Andringa KK,Millender-Swain T,Dickinson DA,Postlethwait EM,Bailey SMdoi
10.1016/j.redox.2013.11.006subject
Has Abstractpub_date
2014-01-01 00:00:00pages
52-60issn
2213-2317pii
S2213-2317(13)00086-4journal_volume
2pub_type
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