Abstract Title:

Docosahexaenoic acid is an independent predictor of all-cause mortality in hemodialysis patients.

Abstract Source:

Am J Nephrol. 2010 Dec 22;33(2):105-110. Epub 2010 Dec 22. PMID: 21196723

Abstract Author(s):

Kei Hamazaki, Yoshihiro Terashima, Miho Itomura, Shigeki Sawazaki, Hitoshi Inagaki, Masahiro Kuroda, Shin Tomita, Hitoshi Hirata, Hidekuni Inadera, Tomohito Hamazaki

Article Affiliation:

Department of Public Health, Faculty of Medicine, University of Toyama, Toyama City, Japan.


Background: Dietary n-3 polyunsaturated fatty acids (PUFAs), docosahexaenoic acid (DHA) and eicosapentaenoic acid have been shown to reduce cardiovascular mortality. Patients on hemodialysis (HD) have a very high mortality from cardiovascular disease. Fish consumption reduces all-cause mortality in patients on HD. Moreover, n-3 PUFAs, especially DHA levels in red blood cells (RBCs), are associated with arteriosclerosis in patients on HD. The aim of this study was to determine whether DHA levels in RBCs predict the mortality of patients on HD in a prospective cohort study. Methods: A cohort of 176 patients (64.1± 12.0 (mean ± SD) years of age, 96 men and 80 women) under HD treatment was studied. The fatty acid composition of their RBCs was analyzed by gas chromatography. Results: During the study period of 5 years, 54 deaths occurred. After adjustment for 10 confounding factors, the Cox hazard ratio of all-cause mortality of the patients on HD in the highest DHA tertile (>8.1%, 15 deaths) was 0.43 (95% CI 0.21-0.88) compared with those patients in the lowest DHA tertile (<7.2%, 21 deaths). Conclusion: The findings suggest that the level of DHA in RBCs could be an independent predictor of all-cause mortality in patients on HD.

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