NUTR 125 Lecture Notes - Lecture 16: Very Low-Density Lipoprotein, Chylomicron, Lipoprotein Lipase
Document Summary
Short and medium chain fatty acids: enter bloodstream through portal vein. Long chain-fatty acids re-form into triglycerides in the intestinal cells. Enter lymphatic system and finally into circulation. Packaged into chylomicrons (type of lipoprotein particle) Transport lipids throughout the body: chylomicrons, vldl (very low density lipoproteins, ldl (low density lipoproteins, hdl (high density lipoproteins) Transports triglycerides (tg) to tissues (mainly muscle and adipose) In blood, tg broken down by lipoprotein lipase-> glycerol+ fatty acids. Transports newly made tg and cholesterol (ch) and any left over dietary lipids. High-fat diets decrease removal of ldls from blood transports mostly cholesterol to tissues. Higher levels of hdl associated with lower risk for cardiovascular diseases transports cholesterol from body"s dying cells and plaques to the liver for excretion. Release of neurotransmitters and natural opioids (endorphins) Food used as a reward or bribe. Mild and short term changes in eating patterns that occur in response to a stressful.
