Modulation of the biomarkers of inflammation and oxidative stress by ruminant trans fatty acids and dairy proteins in vascular endothelial cells (HUVEC)

作者：Da Silva Marine S; Bilodeau Jean Francois; Larose Jessica; Greffard Karine; Julien Pierre; Barbier Olivier; Rudkowska Iwona^*

来源：Prostaglandins, Leukotrienes and Essential Fatty Acids, 2017, 126: 64-71.

DOI：10.1016/j.plefa.2017.09.016

• Elaidic acid
• Isoprostane
• Prostaglandin
• trans-vaccenic acid
• Whey proteins

This study aimed to determine whether dairy macronutrients alter markers of inflammation and oxidative stress in endothelial cells. Human endothelial cells (HUVEC) were treated with ruminant trans fatty acids (rTFA), either trans-vaccenic acid (tVA) or trans-palmitoleic acid (tPA), whey protein hydrolysate, leucine or combinations of rTFA and dairy protein compounds. Industrial TFA elaidic acid (EA) was also investigated and compared with rTFA. Inflammatory prostaglandins (PG) and F-2-isoprostanes (F-2-isoP) isomers, markers of oxidative stress, were assessed in cell supernatants by LC-MS/MS. Both tVA and tPA, as well as whey protein hydrolysate, decreased TNFa-induced PG excretion. Combinations of rTFA and dairy protein compounds decreased inflammation to a similar extent than rTFA alone. EA increased class VI F-2-isoP isomers, whereas tVA mostly raised class III isomers. In summary, rTFA decreased inflammatory markers and increased oxidative stress markers in endothelial cells. Combinations of rTFA with whey proteins or leucine showed no additive effect.

• 出版日期2017-11