Omega-6 Fatty Acids Analysis Service


The two major classes of polyunsaturated fatty acids (PUFAs) are the omega-3 and omega-6 fatty acids. The difference between omega-6 and omega-3 fatty acids is based on the location of the first double bond, counting from the methyl end of the fatty acid. Omega-6 fatty acids (ω-6 fatty acids) have a final carbon-carbon double bond in the n-6 position.

Omega-6 Fatty Acids Analysis ServiceFigure 1. Omega-6 fatty acid: linoleic acid

There is competition between omega-6 and omega-3 fatty acids for the desaturation enzymes. Both fatty acid desaturase 1 (FADS1) and fatty acid desaturase 2 (FADS2) prefer alpha-linolenic acid (ALA) to linoleic acid(LA). However, a high LA intake, such as that characterizing Western diets, interferes with the desaturation and elongation of ALA. Similarly, trans fatty acids interfere with the desaturation and elongation of both LA and ALA.

Omega-6 Fatty Acids Analysis ServiceFigure 2. Desaturation and elongation of omega-3 and omega-6 fatty acids

Omega-6 and omega-3 fatty acids are not interconvertible, are metabolically and functionally distinct, and often have important opposing physiological effects, therefore their balance in the diet is important. An increased omega-6/omega-3 ratio is considered to be proinflammatory in terms of gene expression, prostaglandin and leukotriene metabolism, and Interleukin-1 production, which contributes to the prevalence of atherosclerosis, obesity, and diabetes. Moreover, High omega-6 fatty acids leads to insulin resistance, whereas omega-3 fatty acids result in homeostasis and weight loss.

Creative Proteomics is equipped with GC mass spectrometers that allows sensitive, reliable and accurate identification and quantitation of omega-6 fatty acids. The quantification of omega-6 fatty acids and omega-6/omega-3 ratio has been widely used as biomarker for clinical conditions, such as breast cancer, coronary cancer, cardiac arrest, metabolic diseases and many others.

Feature and Advantage of omega-6 fatty acids analysis

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Omega-6 Fatty Acids Quantified in This Service

For other species in Omega-6 family, please contact us for availability.

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