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Cited by 47,221

The DOI matches its Crossref record; 6 of the 6 references it cites were found in a registry or an index.

Short-Term Effects of Nose-Only Cigarette Smoke Exposure on Glutathione Redox Homeostasis, Cytochrome P450 1A1/2 and Respiratory Enzyme Activities in Mice Tissues

Open access
Raza, Haider, John, Annie, Nemmar, Abderrahim·2013·Cellular Physiology and Biochemistry
DOI 10.1159/000350087
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Abstract

BACKGROUND/AIMS: The components of cigarette smoke (CS) have been implicated in the development of cancer as well as in cardiopulmonary diseases. We have previously reported increased oxidative stress in rat tissues induced by tobacco-specific toxins nicotine and 4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone (NNK). Recently, we have also shown increased oxidative stress and associated inflammatory responses in various tissues after exposure to cigarette smoke. METHODS: In this study, we have further investigated the effects of nose-only cigarette smoke exposure on mitochondrial functions and glutathione-dependent redox metabolism in tissues of BALB/C mice. Liver, kidney, heart and lung tissues were analyzed for oxidative stress, glutathione (GSH) and cytochrome P450 dependent enzyme activities and mitochondrial functions after exposure to smoke generated by 9 cigarettes/day for 4 days. Control mice were exposed to air only. RESULTS: An increase in oxidative stress as observed by increased production of reactive oxygen species (ROS) and altered GSH metabolism was apparent in all the tissues, but lung and heart appeared to be the main targets. Increased expression and activity of CYP450 1A1 and 1A2 were also observed in the tissues after exposure to cigarette smoke. Mitochondrial respiratory dysfunction in the tissues, as observed by alterations in the activities of Complex I and IV enzymes, was also observed after exposure to cigarette smoke. SDS-PAGE and Western blot results also indicate that alterations in the expression of enzyme proteins were in accordance with the changes in their catalytic functions. CONCLUSION: These results suggest that even short term exposure of cigarette smoke have adverse effects on mitochondrial functions and redox homeostasis in tissues which may progress to further complications associated with chronic smoking.

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Metadata

Authors
Raza, H., John, A., & Nemmar, A.
Venue
Cellular Physiology and Biochemistry
Publisher
S. Karger AG
Published
2013
Volume
31
Issue
4-5
Pages
683-692
ISSN
  • 1015-8987 (ISSN-L)
  • 1421-9778
DOI
10.1159/000350087
OpenAlex
W2018289835
Cited by
47,221
References
6
FWCI
372.38
Type
journal article
Language
en
Open access
gold

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