NUTR 3210 Lecture Notes - Lecture 10: Lysine, Small Intestine, Large Intestine
16 Feb 2017
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Lipid metabolism in the liver following a meal. Hepatic vein: carries the nutrients we just consumed from the intestine to the rest of the body. Excess glucose gets converted into fat in the liver by taking glycerol backbone. Lipid metabolism in the adipose cell following a meal. Extra glucose in the adipocyte is turned into more fatty acids with acetyl coa. In adipose tissue: hsl (hormone sensitive lipase, cleaves fatty acids from glycerol backbone. Clips off 2 carbons to create acetyl coa. Fadh2: hydration (add h2o, oxidation (produce nadh, thiolysis (add scoa) # of times beta-oxidation occurs? (# of carbons/2)-1. [(# nadh x 3) x # round] + For most people, limiting dietary cholesterol does not change blood cholesterol. For 10-25% of those with high cholesterol, lowering dietary cholesterol will lower ldl. Plant sterols compete with cholesterol for absorption, this could lower cholesterol. Found naturally in ruminant fat: milk fat contains 4-8% trans fat, most common is elaidic acid (c18:1n9)
