Rapid fatty acid ethyl ester synthesis by porcine myocardium upon ethanol infusion into the left anterior descending coronary artery

Danita M. Yoerger, Catherine A. Best, Brendan M. McQuillan, Gregory E. Supple, J. Luis Guererro, Joanne E. Cluette-Brown, Ali Hasaba, Michael H. Picard, James R. Stone, Michael Laposata

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Fatty acid ethyl esters (FAEEs), nonoxidative metabolites of ethanol, have been implicated in ethanol-induced heart injury. To assess the in vivo production of FAEEs by myocardial tissue, we used a modified ethanol ablation procedure in pigs. A controlled 60-minute ethanol infusion was administered into the distal left anterior descending coronary artery in seven swine; serial blood sampling of the coronary sinus and peripheral vein before, during, and after infusion allowed measurement of FAEE production and ethanol levels in the coronary sinus and the peripheral circulation. In a single animal, FAEEs were also quantified from nine different sites within the myocardium. FAEEs were produced by the heart within 5 minutes of exposure to ethanol, with very high concentrations of FAEEs detected in coronary sinus blood. Significant variability in amounts of FAEEs was detected in different regions of the heart tissue. A strong correlation was found between coronary sinus FAEEs and ethanol concentration (r = 0.924l, P < 0.00001). FAEE production by the heart after delivery of ethanol into the left anterior descending coronary artery was rapid, reaching levels in the coronary sinus blood 4 to 10 times greater than that found in peripheral blood after ethanol intake. These data demonstrate that FAEEs maybe mediators of ethanol-induced cardiotoxicity.

Original languageEnglish (US)
Pages (from-to)1436-1443
Number of pages8
JournalAmerican Journal of Pathology
Volume168
Issue number5
DOIs
StatePublished - May 2006
Externally publishedYes

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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    Yoerger, D. M., Best, C. A., McQuillan, B. M., Supple, G. E., Guererro, J. L., Cluette-Brown, J. E., Hasaba, A., Picard, M. H., Stone, J. R., & Laposata, M. (2006). Rapid fatty acid ethyl ester synthesis by porcine myocardium upon ethanol infusion into the left anterior descending coronary artery. American Journal of Pathology, 168(5), 1436-1443. https://doi.org/10.2353/ajpath.2006.050537