21. Nascent chylomicrons are composed primarily of triglycerides ( 85 % ) and contain some cholesterol and cholesteryl esters. 22. Without functional chylomicrons certain fat-soluble vitamins such as vitamin D and vitamin E cannot be absorbed. 23. GPIHBP1 is a capillary endothelial cell protein that provides a platform for LPL-mediated processing of chylomicrons . 24. The chylomicrons are small enough to pass through the enterocyte villi and into their lymph capillaries called lacteals. 25. They found that Mg supplementation reduced and delayed the postprandial serum and chylomicron TAG responses after fat loading. 26. At this point the chylomicrons can transport the triglycerides to tissues where they are stored or metabolized for energy. 27. Again, like chylomicrons , VLDL particles circulate and encounter lipoprotein lipase ( LPL ) expressed on endothelial cells. 28. Lymph also transports fats from the digestive system ( beginning in the lacteals ) to the blood via chylomicrons . 29. The receptor defect causes levels of chylomicron remnants and IDL to be higher than normal in the blood stream. 30. The largest lipoproteins, which primarily transport fats from the intestinal mucosa to the liver, are called chylomicrons .
