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单词 mucopolysaccharide
释义

mucopolysacchariden.

Brit. /ˌmjuːkəʊˌpɒlɪˈsakərʌɪd/, U.S. /ˈˌmjukoʊˌpɑliˈsækəˌraɪd/
Origin: Formed within English, by compounding. Etymons: muco- comb. form, polysaccharide n.
Etymology: < muco- comb. form + polysaccharide n.
Medicine and Biology.
The polysaccharide component of a mucoid substance (esp. a proteoglycan); spec. any of a group of large unbranched polysaccharides which are made up of disaccharide repeating units consisting of an amino sugar (esp. a hexosamine) and a uronic acid, and which include chondroitin, heparin, hyaluronic acid, and certain blood group substances. Also called glycosaminoglycan.As a term, common in Medicine and Biology, though glycosaminoglycan is preferred in Biochemistry.
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mucopolysaccharide1938
1938 K. Meyer in Cold Spring Harbor Symp. Quantitative Biol. 6 91/1 The mucopolysaccharides of our terminology were formerly included as mucins and as mucoids in the group of conjugated proteins. They occur in nature either as free polysaccharides or as protein salts.
1947 Physiol. Rev. 27 335 Hyaluronic acid is a mucopolysaccharide acid which in animal tissues seems to bind water in interstitial spaces. It further holds cells together in a jelly-like matrix and serves as a lubricant and shock-absorber in joints.
1963 R. W. Jeanloz in M. Florkin & E. H. Stotz Comprehensive Biochem. V. vii. 262 Two groups of substances, which in the past had been described under the name of mucopolysaccharide, namely the glycoproteins and the glycolipids, will be discussed in other chapters.
1984 J. R. Tighe & D. R. Davies Pathol. (ed. 4) xiii. 115 The dissection arises because of cystic accumulation of mucopolysaccharides in the media.
1993 Equus Jan. 71/1 Dubbed ‘GAGs’ by laymen, they also are referred to as mucopolysaccharides and chondroitin sulfates by scientists.
This entry has been updated (OED Third Edition, March 2003; most recently modified version published online March 2022).
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