Definitions

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

  • noun A betaine commonly occurring in the liver and in skeletal muscle that functions in fatty acid transport across mitochondrial membranes.

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

  • noun organic chemistry A betaine 3-hydroxy-4-trimethylammonio-butanoate that occurs in the liver and has a function in fatty acid transport

Etymologies

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

[German Karnitin, from Karnin, a basic substance derived from meat, from Latin carō, carn-, flesh; see carnal.]

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Examples

  • L-carnitine is a nutrient that is involved in fat transport and metabolism.

    The Pink Patch - Irresponsible Advertising on My Space aka TBTAM 2008

  • In addition, analysis of the mitochondrial lipid transport enzyme known as carnitine palmitoyltransferase 1 CPT1 revealed increased fat transferred into the mitochondria to be utilized more efficiently for energy and reduced oxidative damage in the presence of astaxanthin.

    Forever Young M.D. Nicholas Perricone 2010

  • Within limits, either lowered fat intake or increased vitamin E intake will bring about the same improvement in blood chemistry, and either decreasing the amount of sugar in the diet or increasing the amount of a nutrient called carnitine will lower undesirable blood chemicals called triglycerides.

    The New Super-Nutrition Ph.D. Richard A. Passwater 1991

  • Within limits, either lowered fat intake or increased vitamin E intake will bring about the same improvement in blood chemistry, and either decreasing the amount of sugar in the diet or increasing the amount of a nutrient called carnitine will lower undesirable blood chemicals called triglycerides.

    The New Super-Nutrition Ph.D. Richard A. Passwater 1991

  • Fatty acids from the cytoplasm are attached to a molecule called carnitine to transport them across the mitochondrial membrane.

    Recently Uploaded Slideshows 2009

  • Unlike l-carnitine, which is a good fat-burning nutrient, which doesn’t cross into the brain, the acetyl l formulation does.

    Are antioxidants harmful? | The Blog of Michael R. Eades, M.D. 2007

  • CardioFuel claims that its "ATP boosting" properties are not just from ribose, but also from other molecules such as carnitine and coenzyme Q10.

    ScienceBlogs Channel : Life Science 2010

  • CardioFuel claims that its "ATP boosting" properties are not just from ribose, but also from other molecules such as carnitine and coenzyme Q10.

    ScienceBlogs Channel : Life Science 2010

  • Stimulant drugs for ADD and ADHD can deplete the amino acid carnitine, especially worrisome in vegetarians, since it's found in meat.

    Hyla Cass, M.D.: Is Your Medication Robbing You of Nutrients Part 2: Getting Specific M.D. Hyla Cass 2010

  • Metabolic markers for disorders of fatty acid metabolism and some of the organic acid disorders include total and free carnitine levels and an acylcarnitine profile, are measured using tandem mass spectrometry.

    Metabolic Disease Lab 2010

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