Effect of dairy fat on plasma phytanic acid in healthy volunteers - a randomized controlled study

Lipids in Health and Disease

Research

Tue Drachmann¹  Lars I Hellgren¹  Søren K Jensen²  Louise B Werner³  Tine Tholstrup³  Marianne Raff³  Rikke A Petersen³ 

[1] Center for Biological Sequence Analysis, DTU Systems Biology, Technical University of Denmark, 2800, Lyngby, Denmark;Department of Animal Health and Bioscience, Faculty of Agricultural Sciences, Aarhus University, 8830, Tjele, Denmark;Department of Human Nutrition, Faculty of Life, University of Copenhagen, 1958, Frederiksberg, Denmark;

关键词: Phytanic acid;    cow-feeding regime;    absorption;    fatty acid;    total cholesterol;    LDL cholesterol;    HDL cholesterol;    C-reactive protein;    insulin;    glucose;   

DOI  :  10.1186/1476-511X-10-95

 received in 2011-04-29, accepted in 2011-06-10,  发布年份 2011

来源: Springer

【 摘 要 】

BackgroundPhytanic acid produced in ruminants from chlorophyll may have preventive effects on the metabolic syndrome, partly due to its reported RXR and PPAR- α agonist activity. Milk from cows fed increased levels of green plant material, contains increased phytanic acid concentrations, but it is unknown to what extent minor increases in phytanic acid content in dairy fat leads to higher circulating levels of phytanic acid in plasma of the consumers.ObjectiveTo investigate if cow feeding regimes affects concentration of plasma phytanic acid and risk markers of the metabolic syndrome in human.DesignIn a double-blind, randomized, 4 wk, parallel intervention study 14 healthy young subjects were given 45 g milk fat/d from test butter and cheese with 0.24 wt% phytanic acid or a control diet with 0.13 wt% phytanic acid. Difference in phytanic acid was obtained by feeding roughage with low or high content of chlorophyll.ResultsThere tended to be a difference in plasma phytanic acid (P = 0.0730) concentration after the dietary intervention. Plasma phytanic acid increased significantly within both groups with the highest increase in control group (24%) compared to phytanic acid group (15%). There were no significant effects of phytanic acid on risk markers for the metabolic syndrome.ConclusionsThe results indicate that increased intake of dairy fat modify the plasma phytanic acid concentration, regardless of cows feeding regime and the minor difference in dietary phytanic acid. Whether the phytanic acid has potential to affects the risk markers of the metabolic syndrome in human still remain to be elucidated.Trial RegistrationClinicalTrials.gov: NCT01343576

【 授权许可】

CC BY   
© Werner et al; licensee BioMed Central Ltd. 2011