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Vitamin E is a group of eight compounds related in molecular structure that includes four tocopherols and four tocotrienols. The tocopherols function as fat-soluble antioxidants which may help protect cell membranes from reactive oxygen species. Vitamin E is classified as an essential nutrient for humans.
On September 5, 2019, the United States Food and Drug Administration (US FDA) announced that 10 out of 18, or 56% of the samples of vape liquids sent in by states, linked to the recent vaping-related lung disease outbreak in the United States, tested positive for vitamin E acetate [14] which had been used as a thickening agent by illicit THC vape cartridge manufacturers. [15]
Vitamin E was named "tocopherol" (from the Greek words tokos, meaning childbirth, and phero, meaning to bring forth) due to its presumed role in aiding conception. Subsequent research identified eight molecules in the vitamin E family, divided into tocopherols and tocotrienols: alpha, beta, delta, and gamma forms. [ 18 ]
Tocopherols (/ t oʊ ˈ k ɒ f ə ˌ r ɒ l /; [1] TCP) are a class of organic compounds comprising various methylated phenols, many of which have vitamin E activity. Because the vitamin activity was first identified in 1936 from a dietary fertility factor in rats, it was named tocopherol, from Greek τόκος tókos 'birth' and φέρειν phérein 'to bear or carry', that is 'to carry a ...
The initial results found that the increase in risk associated with Vitamin E was "statistically nonsignificant", [10] which the researchers wanted to verify in a subsequent study. [11] A subsequent 2010 study further described SELECT's results and found that neither selenium nor vitamin E, on their own or in combination, prevented prostate ...
Isolated vitamin E deficiency or 'ataxia with isolated with vitamin E deficiency' is an inheritable deficiency of vitamin E caused by mutations in the gene for the tocopherol (vitamin E) transfer protein. These patients are the only ones who are unlikely to have other nutrient deficiencies.