Regional variation in expression of pro-inflammatory mediators in the intestine following a combined insult of alcohol and burn injury.
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| Abstract |
The intestine is segmented into functionally discrete compartments (duodenum, jejunum, ileum, and colon). The present study examined whether alcohol combined with burn injury differently influences cytokine levels in different parts of the intestine. Male mice were gavaged with alcohol (∼2.9 g/kg) 4 h prior to receiving a ∼12.5% total body surface area full thickness burn. Mice were sacrificed 1, 3, and 7 days after injury. The intestine segments (duodenum, jejunum, ileum, and colon) were harvested, homogenized, and analyzed for inflammatory mediators (IL-6, IL-18, and KC) using their respective ELISAs. KC levels were significantly increased in the jejunum, ileum, and colon following alcohol and burn injury as compared to shams. The increase in KC was ∼28-fold higher in the colon as compared to the levels observed in duodenum following alcohol and burn injury. Both IL-6 and IL-18 levels were significantly elevated in both the ileum and colon following the combined insult. There was a ∼7-fold increase in IL-6 levels in the colon as compared with the duodenum after the combined insult. Levels of IL-18 were increased by ∼1.5-fold in the colon as compared to the ileum following alcohol and burn injury. The data suggest that pro-inflammatory mediators are differentially expressed in the intestine following alcohol and burn injury.
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| Authors | Niya L Morris, Xiaoling Li, Zachary M Earley, Mashkoor A Choudhry |
| Journal | Alcohol (Fayetteville, N.Y.) (Alcohol) Vol. 49 Issue 5 Pg. 507-11 (Aug 2015) ISSN: 1873-6823 [Electronic] United States |
| PMID | 25921594 (Publication Type: Journal Article, Research Support, N.I.H., Extramural) |
| Copyright | Copyright © 2015 Elsevier Inc. All rights reserved. |
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