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Lipid peroxidation, or lipid oxidation, is a complex chemical process that leads to oxidative degradation of lipids, [1] resulting in the formation of peroxide and hydroperoxide derivatives. [2] It occurs when free radicals , specifically reactive oxygen species (ROS), interact with lipids within cell membranes , typically polyunsaturated fatty ...
Deuterium-reinforced lipids can be used for protecting living cells by slowing the chain reaction of lipid peroxidation. [1] The lipid bilayer of the cell and organelle membranes contain polyunsaturated fatty acids (PUFA) are key components of cell and organelle membranes. Any process that either increases oxidation of PUFAs or hinders their ...
Despite concerns among the scientific community, there is little data on the health effects of rancidity or lipid oxidation in humans. [8] [9] Animal studies show evidence of organ damage, inflammation, carcinogenesis, and advanced atherosclerosis, although typically the dose of oxidized lipids is larger than what would be consumed by humans.
Another method of termination is the reaction between a lipid radical and a lipid peroxide, or the combination of two lipid peroxide molecules, resulting in stable nonreactive molecules. [ 4 ] [ 5 ] Reinforced lipids that become part of the membrane if consumed with heavy isotope diet also inhibit peroxidation.
Modifying the assay can also aid in the detection of protein, as well as lipid, hydroperoxide in human cells. Aside from its use in vegetation, the FOX assay has also been used to detect the LOOHs present within animal tissue. Specifically, it can be used in order to detect fatty acid oxidation in poultry, such as cooked and uncooked chicken. [3]
27226 Ensembl ENSG00000146070 ENSMUSG00000023913 UniProt Q13093 Q60963 RefSeq (mRNA) NM_001168357 NM_005084 NM_013737 RefSeq (protein) NP_001161829 NP_005075 NP_038765 Location (UCSC) Chr 6: 46.7 – 46.74 Mb Chr 17: 43.88 – 43.92 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Lipoprotein-associated phospholipase A 2 (Lp-PLA 2) also known as platelet-activating factor ...
Oxidation by FAD; Hydration; Oxidation by NAD + Thiolysis; Production of acyl-CoA and acetyl-CoA; The final product of β-oxidation of an even-numbered fatty acid is acetyl-CoA, the entry molecule for the citric acid cycle. [3] If the fatty acid is an odd-numbered chain, the final product of β-oxidation will be propionyl-CoA.
Assay of TBARS measures malondialdehyde (MDA) present in the sample, as well as malondialdehyde generated from lipid hydroperoxides by the hydrolytic conditions of the reaction. [4] MDA is one of several low-molecular-weight end products formed via the decomposition of certain primary and secondary lipid peroxidation products.