Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun One of the microscopic particles of emulsified fat found in the blood and lymph and formed during the digestion of fats.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology A microscopic globule of lipoprotein, found in blood and lymph, that is associated with the digestion of fats

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[chyl(e) + Greek mīkron, small thing, from neuter of mīkros, small.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From chylo- (“juice”) +‎ micron (“small”).

Examples

  • For cholesterol to be absorbed in the intestine, however, it would hitchhike with a chylomicron a fat and protein combination or lipoprotein.

    Anatomy of a statin ad | The Blog of Michael R. Eades, M.D.

  • Each chylomicron contains significant quantities of cholesterol estimated to be 40 times more than that for low-density lipoproteins LDL the so-called "bad" cholesterol.

    Australian protein study | The Blog of Michael R. Eades, M.D.

  • The group following the low-fat, higher carbohydrate diet has a “substantially exaggerated” response in terms of chylomicron levels after the fat challenge than did those on the higher-protein diet.

    Australian protein study | The Blog of Michael R. Eades, M.D.

  • Apo E • Present in 3 isoforms • E2, E3, E4 • Is found in Chylomicrons and IDL that binds to a specific receptor on liver cell • It is essential for the normal catabolism of triglyceride-rich lipoprotien constituent • E2 binds poorly to receptors homozygous poor clearance of chylomicron remnants and IDL • E4 associated with increased susceptibility to late onset of Alzheimer's disease 27

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  • The liver removes the chylomicron fragments, and the  cholesterol is repackaged for transport in the blood in very low-density lipoproteins (VLDLs), which eventually turn into low-density lipoproteins (LDL).

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  • Patients with abetalipoproteinemia develop severe vitamin E deficiency because they are defective in three steps in this pathway: First, along with other fat soluble vitamins, the fat malabsorption decreases the absorption of vitamin E Second, the small amount of vitamin E that maybe absorbed can not be efficiently secreted by the intestine because of the defect in the chylomicron secretion.

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  • LRP1 is a multifunctional endocytic receptor participating in the removal of TG-rich VLDL and chylomicron remnants in the liver

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  • Merriam-Webster's Medical Dictionary, © 2007 Merriam-Webster, Inc. Cite This Source chylomicron chy·lo·mi·cron (kī'lō-mī'krŏn ') en Español

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Comments

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  • I like Wordnet's second definition.

    September 9, 2008