Abstract：
BACKGROUND:We previously investigated the prognostic utility of red blood cell (RBC) n-3 fatty acids (FAs) in survivors of an acute myocardial syndrome (ACS) but found no relationship with all-cause mortality and cardiac death or MI after two years. Here we extend our follow-up to 7years, focusing on the potential predictive power of RBC n-6 FAs. METHODS:We included 398 ACS patients presenting with increased troponin-T (TnT) levels for whom baseline RBC FA data were available. Cox regression analysis was used to relate the risk of future events to RBC n-6 FA levels, both continuously and by quartile. RESULTS:At 7-year follow-up, 183 (46.0%) had died, 128 (32.2%) had experienced another MI and 24 (6.0%) had had a stroke. Death or MI occurred in 227 patients (57.0%); and death, MI or stroke in 235 patients (59.0%). In a multivariable Cox regression model for total death, the hazard ratio (HR) in the highest as compared to the lowest quartile of dihomo-γ-linolenic acid (DGLA) was 0.55 [95% confidence interval (CI), 0.35-0.88, p=0.012, for death or MI [HR 0.62 (95% CI, 0.41-0.94), p=0.025], and for the fully combined endpoint [HR 0.57 (95% CI, 0.38-0.86), p=0.006]. Similar results were found in the per 1-SD analysis. No other RBC n-6 FAs significantly predicted these outcomes in multivariable models. CONCLUSION:RBC DGLA levels had significant independent prognostic value in post-ACS patients. These findings need confirmation, and the possible biochemical pathways by which higher DGLA membrane levels may be cardioprotective should be explored.
journal_name
Int J Cardioljournal_title
International journal of cardiologyauthors
Nilsen DWT,Aarsetoey H,Pönitz V,Brugger-Andersen T,Staines H,Harris WS,Grundt Hdoi
10.1016/j.ijcard.2017.09.202subject
Has Abstractpub_date
2017-12-15 00:00:00pages
12-17eissn
0167-5273issn
1874-1754pii
S0167-5273(17)32211-8journal_volume
249pub_type
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