Elaidic acid (EA) is an 18-carbon chained fatty acid with one double bond in the trans formation at the 9th carbon (18:1n9t). It is the trans isomer of oleic acid. EA is the principal and most abundant trans fatty acid in the Western diet. It is found in partially hydrogenated vegetable oil and margarine. There are trace amounts of EA in the meat and dairy products from ruminant animals. EA has been shown to induce oxidative stress and alter mitochondrial signaling. It is quickly incorporated into triglycerides and cholesterol esters. Once incorporated into plasma membranes, it activates nuclear factorkB to induce adhesion molecules and become proinflammatory leading to endothelial dysfunction.
Intake of trans fats, specifically EA, has been implicated in cancer, cardiovascular disease, insulin resistance, neurotoxicity, obesity and many inflammatory conditions.
References:
- Ohmori H, Fujii K, Kadochi Y, et al. Elaidic Acid, a Trans-Fatty Acid, Enhances the Metastasis of Colorectal Cancer Cells. Pathobiology : journal of immunopathology, molecular and cellular biology. 2017;84(3):144-151.
- Tewari D, Bera AK. Modulation of the voltage-dependent anion channel of mitochondria by elaidic acid. Biochemical and biophysical research communications. 2016;477(3):490-494.
- Ma WW, Zhao L, Yuan LH, et al. Elaidic acid induces cell apoptosis through induction of ROS accumulation and endoplasmic reticulum stress in SH-SY5Y cells. Molecular medicine reports. 2017;16(6):9337-9346.
- Mori K, Ishida T, Yasuda T, et al. Serum trans-fatty acid concentration is elevated in young patients with coronary artery disease in Japan. Circulation Journal. 2015:CJ-14- 0750.
- Chajes V, Biessy C, Ferrari P, et al. Plasma elaidic acid level as biomarker of industrial trans fatty acids and risk of weight change: report from the EPIC study. PloS one. 2015;10(2):e0118206.
- Itcho K, Yoshii Y, Ohno H, et al. Association between serum elaidic acid concentration and insulin resistance in two Japanese cohorts with different lifestyles. Journal of Atherosclerosis and Thrombosis. 2017;24(12):1206-1214.
Low intake of processed foods and hydrogenated oils lead to lower levels of EA. Given the health implications, low levels are preferred.
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Dietary intake of industrial hydrogenated oils and margarine, fried foods, baked goods, donuts, crackers, etc., can elevate levels. Due to the many deleterious health effects of EA as noted above, the recommendation is to limit intake of EA and trans fat.
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% Omega-3s, % Omega-6s, % Omega-9s, % Saturated Fats, 1-Methylhistidine, 3-Hydroxyisovaleric Acid, 3-Hydroxyphenylacetic Acid, 3-Hydroxypropionic Acid, 3-Methyl-4-OH-phenylglycol, 3-Methylhistidine, 4-Hydroxyphenylacetic Acid, 5-OH-indoleacetic Acid, 8-OHdG (urine), a-Amino-N-butyric Acid, a-Aminoadipic Acid, a-Hydroxybutyric Acid, a-Hydroxyisobutyric Acid (from MTBE), a-Keto-b-Methylvaleric Acid, a-Ketoadipic Acid, a-Ketoglutaric Acid, a-Ketoisocaproic Acid, a-Ketoisovaleric Acid, a-Ketophenylacetic Acid (from Styrene), a-Linolenic (ALA) 18:3 n3, AA / EPA (20:4 n6 / 20:5 n3), Adipic Acid, Alanine, Aluminum, Anserine (dipeptide), Antimony, Arachidic C20:0, Arachidonic (AA) 20:4 n6, Arginine, Arsenic, Asparagine, Aspartic Acid, b-Alanine, b-Aminoisobutyric Acid, b-OH-b-Methylglutaric Acid, b-OH-Butyric Acid, Barium, Behenic C22:0, Benzoic Acid, Bismuth, Cadmium, Calcium, Carnosine (dipeptide), Cesium, Chromium, cis-Aconitic Acid, Citramalic Acid, Citric Acid, Citrulline, Cobalt, Copper, Creatinine, Creatinine Concentration (Amino Acids FMV), Cystathionine, Cysteine, Cystine, D-Arabinitol, Dihomo-g-linolenic (DGLA) 20:3 n6, Dihydroxyphenylpropionic Acid (DHPPA), Docosahexaenoic (DHA) 22:6 n3, Docosapentaenoic (DPA) 22:5 n3, Docosatetraenoic (DTA) 22:4 n6, Eicosadienoic 20:2 n6, Eicosapentaenoic (EPA) 20:5 n3, Elaidic 18:1 n9t, Ethanolamine, Formiminoglutamic Acid (FIGlu), g-Aminobutyric Acid, g-Linolenic (GLA) 18:3 n6, Gadolinium, Gallium, Glutamic Acid, Glutamine, Glutaric Acid, Glyceric Acid, Glycine, Glycolic Acid, Hippuric Acid, Histidine, Homovanillic Acid, Indoleacetic Acid, Iron, Isocitric Acid, Isoleucine, Isovalerylglycine, Kynurenic / Quinolinic Ratio, Kynurenic Acid, Lactic Acid, Lead, Leucine, Lignoceric C24:0, Linoleic (LA) 18:2 n6, Linoleic / DGLA (18:2 n6 / 20:3 n6), Lipid Peroxides (urine), Lithium, Lysine, Magnesium, Malic Acid, Manganese, Margaric C17:0, Mercury, Methionine, Methylmalonic Acid, Molybdenum, Nervonic 24:1 n9, Nickel, Niobium, Oleic 18:1 n9, Omega-3 Index, Omega-6s /Omega-3s, Ornithine, Orotic Acid, Oxalic Acid, Palmitic C16:0, Palmitoleic 16:1 n7, Pentadecanoic C15:0, Phenylacetic Acid, Phenylalanine, Phosphoethanolamine, Phosphoserine, Platinum, Potassium, Proline, Pyroglutamic Acid, Pyruvic Acid, Quinolinic Acid, Rubidium, Sarcosine, Selenium, Serine, Stearic C18:0, Strontium, Suberic Acid, Succinic Acid, Sulfur, Tartaric Acid, Taurine, Thallium, Thorium, Threonine, Tin, Tricosanoic C23:0, Tryptophan, Tungsten, Tyrosine, Uranium, Urea, Urine Creatinine, Vaccenic 18:1 n7, Valine, Vanadium, Vanilmandelic Acid, Xanthurenic Acid, Zinc
