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Determination of endogenous substance change in PM2.5-induced rat plasma and lung samples by UPLC-MS/MS method to identify potential markers for lung impairment

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Abstract

Exposure to fine particulate matter (PM2.5) could induce lung impairment aggravation. Moreover, endogenous substances are known to play a significant role in lung impairment. Therefore, the research objectives was to investigate the influence of PM2.5-induced lung impairment on the levels of the eight endogenous substances, γ-aminobutyric acid (GABA), acetylcholine (ACh), glutamate (Glu), serotonin (5-HT), 5-hydroxyindole-3-acetic acid (5-HIAA), noradrenaline (NE), dopamine (DA), and 3, 4-dihydroxyphenylacetic acid (DOPAC). A sensitive UPLC-MS/MS method for the simultaneous determination of these endogenous substances in rat plasma and lung tissues was developed. The validated method was successfully applied for comparing profiles of analytes in rat plasma and lung tissues. The results indicated that five endogenous substances, namely, GABA, Ach, Glu, DA, and DOPAC, had a significant change in the rats with PM2.5-induced lung impairment.

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Acknowledgements

We thank the support by the Shenyang Scientific Project (No. 17-231-1-45), Shenyang Medical College Scientific Project (No. 20163042), and Shenyang Medical College student scientific research Project (No. 20179034).

Funding

This study was supported by Liaoning Province Natural Scientific Project (No. 20180550122), Shenyang Major Technology Research and Development Project (No. 18-400-4-09), and Liaoning Province Science and Technology Project (No. 2017225076).

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Correspondence to Chunling Xiao.

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The experimental protocol was approved by the Animal Ethics Committee of Shenyang Medical College (Permit number: 2016-0151), and all animal studies were carried out in accordance with the Guidelines for Animal Experimentation.

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The authors declare that they have no competing interests.

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Responsible editor: Philippe Garrigues

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Fan, R., Ren, Q., Zhou, T. et al. Determination of endogenous substance change in PM2.5-induced rat plasma and lung samples by UPLC-MS/MS method to identify potential markers for lung impairment. Environ Sci Pollut Res 26, 22040–22050 (2019). https://doi.org/10.1007/s11356-019-05351-3

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  • DOI: https://doi.org/10.1007/s11356-019-05351-3

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