Liebisch, Gerhard and Plagge, Johannes and Hoering, Marcus and Seeliger, Claudine and Ecker, Josef (2021) The effect of gut microbiota on the intestinal lipidome of mice. INTERNATIONAL JOURNAL OF MEDICAL MICROBIOLOGY, 311 (3): 151488. ISSN 1438-4221, 1618-0607
Full text not available from this repository. (Request a copy)Abstract
Gut microbiota significantly influence the plasma and liver lipidome. An interconnecting metabolite is acetate generated after degradation and fermentation of dietary fiber by the gut micmbiota, which is metabolized in the liver into longer chain fatty acids and complex lipids reaching the circulation. Whether these systemic changes are accompanied by alternations of the intestinal lipidome is unclear. Therefore, we quantified glycer-ophospholipids, sphingolipids and sterols in ileum and colon, the two segments containing the highest densities of microbes in the gastrointestinal tract, of germfree and specific pathogen free mice using mass spectrometry-based lipidomics. We found that the presence of gut microbes lowers the free cholesterol content in colon while elevating phosphatidylcholine levels. Further, PUFA-containing phosphatidylcholine and -ethanolamine fractions are increased in ileum and colon of germfree compared to SPF mice. A total fatty acid analysis by GC-MS revealed higher levels of arachidonic and docosahexaenoic acid in the ileum of germfree mice indicating that the gut microbiota inhibits PUFA metabolism in the small intestine.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TANDEM MASS-SPECTROMETRY; HIGH-THROUGHPUT QUANTIFICATION; FATTY-ACID; LINOLEIC-ACID; METABOLISM; ABSORPTION; ISOMERS; Cholesterol; Colon; Germfree; Gut microbiota; Ileum; Lipidomics; Phosphatidylcholine; PUFA |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Klinische Chemie und Laboratoriumsmedizin |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Sep 2022 13:30 |
| Last Modified: | 09 Sep 2022 13:30 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46982 |
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