| Excretion pattern and dynamics of glutathione detoxification of microcystins in Sprague Dawley rat | |
| Li, Wei1,2; He, Jun1; Chen, Jun1; Xie, Ping1 | |
| Corresponding Author | Chen, Jun(chenjun@ihb.ac.cn) ; Xie, Ping(xieping@ihb.ac.cn) |
| 2018 | |
| Source Publication | CHEMOSPHERE
 |
| ISSN | 0045-6535 |
| Volume | 191Pages:357-364 |
| Abstract | The excretion route and dynamics of the glutathione (GSH) conjugate of microcystin-RR (MCRR), MCRRGSH, were quantitatively studied in Sprague Dawley rat exposed with MCRR-GSH via liquid chromatography electrospray ionization mass spectrometry (LC-ESI-MS). In the MCRR-GSH-treated rat, the average MCRR-Cysteine (MCRR-Cys)/MCRR-GSH ratio reached as high as 105.3, which indicated that the intermediate conjugate MCRR-GSH was rapidly converted to the product compound MCRR-Cys. Besides, MCRR was consistently detected in MCRR-GSH-treated rat, which suggested that MCRR can be dissociated from the MCRR-GSH conjugate and the reversibility of the MC-GSH conjugate. Results of total MC contents analysis in excrement showed that the total MC contents in urine were significantly higher than those in feces. The ratio of the total MC content in urine to feces was as high as 129.3, which demonstrates that the urine is the main route of excretion after MCRR-GSH-treatment. In urine, the MCRR-Cys concentration was 27.8 -fold, 19.4-fold higher than MCRR-GSH and MCRR, respectively. Our results, for the first time, quantitatively found that MCRR-GSH was rapidly converted to MCRR-Cys after exposed to rat, and was excreted mainly through urine in the form of the MCRR-Cys conjugate. This study suggests that the GSH detoxification pathway of MCs could help to explain the greater sensitivity of mammals to MCs. (C) 2017 Elsevier Ltd. All rights reserved. |
| Keyword | Detoxification MCRR-GSH/Cys Excretion Rat |
| DOI | 10.1016/j.chemosphere.2017.09.083 |
| Funding Organization | National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| Funding Project | National Nature Science Foundations of China[31600423] ; Youth Foundations of Changchun University of Science and Technology[XQNJJ-2016-16] |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000418208000041 |
| WOS Keyword | TANDEM MASS-SPECTROMETRY ; ANION TRANSPORTING POLYPEPTIDES ; PEPTIDE TOXIN ; HEPATOTOXIC MICROCYSTINS ; CYANOBACTERIAL TOXINS ; TISSUE DISTRIBUTION ; BIGHEAD CARP ; LR ; TOXICITY ; FISH |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Funding Organization | National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; National Nature Science Foundations of China ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology ; Youth Foundations of Changchun University of Science and Technology |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ihb.ac.cn/handle/342005/30069 |
| Collection | 淡水生态学研究中心_期刊论文 |
| Corresponding Author | Chen, Jun; Xie, Ping |
| Affiliation | 1.Univ Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Donghu South Rd 7, Wuhan 430072, Hubei, Peoples R China 2.Changchun Univ Sci & Technol, Sch Life Sci & Technol, Changchun 130022, Jilin, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Wei,He, Jun,Chen, Jun,et al. Excretion pattern and dynamics of glutathione detoxification of microcystins in Sprague Dawley rat[J]. CHEMOSPHERE,2018,191:357-364. |
| APA | Li, Wei,He, Jun,Chen, Jun,&Xie, Ping.(2018).Excretion pattern and dynamics of glutathione detoxification of microcystins in Sprague Dawley rat.CHEMOSPHERE,191,357-364. |
| MLA | Li, Wei,et al."Excretion pattern and dynamics of glutathione detoxification of microcystins in Sprague Dawley rat".CHEMOSPHERE 191(2018):357-364. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment