Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
3,909,547,728 visitors served.
forum Join the Word of the Day Mailing List For webmasters
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

Carnosine
(redirected from L-carnosine)

   Also found in: Medical, Wikipedia 0.01 sec.
carnosine [′kär·nə‚sēn]
(biochemistry)
C9H14N4O3A colorless, crystalline dipeptide occurring in the muscle tissue of vertebrates.

Carnosine 

C9H14O3N4, a dipeptide (/3-alanyl histidine), composed of the amino acids of /3-alanine and L-histidine. Discovered by G. S. Gulevich in 1900 in a meat extract. Molecular weight, 226. It crystallizes into colorless needles that are readily soluble in water but insoluble in alcohol. It is found in the skeletal musculature of most vertebrates.

Carnosine and its constituent amino acids are absent in certain species of fish (only L-histidine or /3-alanine is present); it does not occur in the muscle of invertebrates. The carnosine content in the muscle of vertebrates usually varies from 200 to 400 mg percent raw muscle weight, depending on the muscular structure and function; in the human body it ranges between 100 and 150 mg percent.

Carnosine has diverse effects on the biochemical processes that occur in skeletal muscles; however, its biological role has not been definitively established. The addition of carnosine to a solution bathing the muscle of the isolated neuromyal specimen causes restoration of contractions of the fatigued muscle.

S. E. SEVERIN



Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Feedback
Mentioned in?  References in periodicals archive?   Encyclopedia browser?   Full browser?
No references found
 
He and his colleagues observed L-carnosine levels are "markedly" higher in a transparent lens compared to one with mature cataracts: about 25 [mu]M in transparent lenses and about 5 [mu]M in those with mature cataracts.
Mark Babizhayev MA PhD of Moscow, the senior research investigator for the clinical trials, used N-acetyl carnosine, a variation of L-carnosine that is suitable for ocular application, and refined it even further to a precise level of purity and specific intraocular-release delivering it safely into the aqueous humor (the fluid area inside the eye).
L-Carnosine Benfotamine Specialty High Conc DHA, EPA and Omega Fatty Acids D-Ribose from Bioenergy[R] Specialized Services Xsto works with the highest quality manufacturers of proprietary and natural ingredients to register, import and launch new and unique raw material ingredients.
 
 
 
Encyclopedia
?

Terms of Use | Privacy policy | Feedback | Advertise with Us | Copyright © 2012 Farlex, Inc.
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.