Journal
ALCOHOLISM-CLINICAL AND EXPERIMENTAL RESEARCH
Volume 31, Issue 6, Pages 1045-1052Publisher
WILEY
DOI: 10.1111/j.1530-0277.2007.00386.x
Keywords
extracellular matrix; ethanol; wound healing
Categories
Funding
- NIAAA NIH HHS [F31 AA 15277-01A1] Funding Source: Medline
- NIGMS NIH HHS [R01-GM-50875, R01-GM-55238, R01 GM050875] Funding Source: Medline
Ask authors/readers for more resources
Background: Clinical studies demonstrate that intoxicated patients exhibit an increased incidence of wound healing complications. Previous studies in a murine excisional wound model revealed that acute ethanol exposure impairs the wound healing response, causing decreased angiogenesis and a significant reduction in wound collagen content. Methods: Using the same murine model of excisional wounding, we examined the effect of a single dose of ethanol on the overall collagen content and collagen type I and type III mRNA expression, transforming growth factor-beta (TGF-beta) production, and levels of several components of the extracellular matrix proteolytic cascade. Results: Wounds from ethanol-treated mice exhibited a significant decrease in collagen and in the production of collagen type I mRNA compared with saline controls. Exposure to ethanol also caused significant increase in wound TGF-beta by day 2 after injury (1.69 +/- 0.29 vs 12.34 +/- 3.97 pg/mu g protein, p < 0.01). In addition, wounds from mice exposed to ethanol had significantly increased levels of active urokinase plasminogen activator at day 7, (205.10 +/- 48.79 vs 642.70 +/- 159.80 pg/mu g protein, p < 0.001). The level of matrix metalloproteinase-8, a collagen type I proteinase, was 2.2-fold higher in wounds of ethanol-treated mice compared with control at day 7 (p < 0.05). Conclusions: These studies demonstrate that a single dose of ethanol decreases collagen production, increases the production of TGF-beta and increases levels of matrix degrading enzymes. This alteration in protease balance may partially explain the impaired wound healing that follows acute alcohol intoxication.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available