A combination of flaxseed oil and astaxanthin alleviates atherosclerosis risk factors in high fat diet fed rats.
BACKGROUND
Atherosclerosis is the most common pathologic process underlying cardiovascular disease. Both flaxseed oil (FO) and astaxanthin (ASX) are believed to benefit cardiovascular system. The combined effect of FO and ASX on the atherosclerosis risk factors in rats fed a high-fat diet was investigated.


METHODS
Astaxanthin was dissolved in flaxseed oil to a final concentration of 1g/kg (FO + ASX). Male Sprague-Dawley rats were fed a rodent diet contained 20% fat whose source was lard (HFD) or 75% lard and 25% FO + ASX (50 mg ASX/kg diet) or 50% lard and 50% FO + ASX (100 mg ASX/kg diet) or FO + ASX (200 mg ASX/kg diet) for 10 weeks.


RESULTS
The combination of FO and ASX significantly increased the antioxidant defense capacity and decreased lipid peroxidation in plasma. Evident decreases in the levels TG, TC and LDL-C contents, as well as IL-6 and CRP were also observed in plasma of FO and ASX fed rats.


CONCLUSIONS
The combination of FO and ASX can improve oxidative stress, lipid abnormalities and inflammation, providing evidence that the combination of FO and ASX could be a promising functional food in cardiovascular health promotion.
Jiqu
J
Xu
Hui
H
Gao
Li
L
Zhang
Chang
C
Chen
Wei
W
Yang
Qianchun
Q
Deng
Qingde
Q
Huang
Department of Product Processing and Nutriology, OilCrops Research Institute, Chinese Academy of Agricultural Sciences, 2 Xudong Second Road, Wuhan 430062, P,R, China. fhhuang@foxmail.com.
Fenghong
F
Huang
D000818:Animals; D050197:Atherosclerosis / Q000188:drug therapy* / Q000209:etiology; D002784:Cholesterol / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D059305:Diet, High-Fat / Q000009:adverse effects; D008043:Linseed Oil / Q000627:therapeutic use*; D015227:Lipid Peroxidation / Q000187:drug effects; D008055:Lipids / Q000097:blood*; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects; D051381:Rats; D017207:Rats, Sprague-Dawley; D012307:Risk Factors; D014280:Triglycerides / Q000097:blood; D024341:Xanthophylls / Q000627:therapeutic use
D008078:Cholesterol, LDL; D008055:Lipids; D014280:Triglycerides; D024341:Xanthophylls; D008043:Linseed Oil; C005948:astaxanthine; D002784:Cholesterol