HSS 2342 Lecture Notes - Lecture 39: Tocopherol, Vitamin K, Anticoagulant

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 2342
• Professor: Keir J Menzies

Document Summary

Vitamin a is associated with preventing acne. The medications, like accutane, are not vitamin a, but a derivative. This derivative helps with acne, but vitamin a itself does not. Vitamin a is also naturally found in milk; however, it is removed during the skimming process (removal of fat). In canada, vitamin a is added back to milk to levels higher than would have been their naturally. Vitamin a is also added to margarines. Vitamin e as an antioxidant alpha form of vit e is most important to humans. First discovered as a component of vegetable oil: necessary for reproduction in rats. Fat soluble 4 vit e compounds available based on side chains: the ha(cid:448)e all (cid:271)ee(cid:374) (cid:374)a(cid:373)ed to(cid:272)opherol; ho(cid:449)e(cid:448)er, the(cid:455) ha(cid:448)e differe(cid:374)t prefi(cid:454)es alpha, beta, gamma, and delta. Alpha-tocopherolis the compound that is most important for us humans. Primary defender against free radicals: prevents free radicals from producing more free radicals, especially protects cell membranes and other lipids (especially pufas)