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Research Article Free access | 10.1172/JCI105898
1Department of Internal Medicine, The University of Michigan and the Rackham Arthritis Research Unit, Ann Arbor, Michigan 48104
Find articles by Castor, C. in: JCI | PubMed | Google Scholar
1Department of Internal Medicine, The University of Michigan and the Rackham Arthritis Research Unit, Ann Arbor, Michigan 48104
Find articles by Greene, J. in: JCI | PubMed | Google Scholar
Published September 1, 1968 - More info
Kidneys from 20 dogs were dissected into cortical and medullary components and analysed for acid mucopolysaccharide content. Heparitin sulfate accounted for approximately 80% of cortical acid mucopolysaccharide, 10% was chondroitin sulfate B, and 10% was low molecular weight hyaluronic acid. Medullary tissue exhibited a 4- to 5-fold higher concentration of acid mucopolysaccharide than did cortical tissue, and the dominant compound was moderately highly polymerized hyaluronic acid. While chondroitin sulfates A and (or) C were not detected in this study, the presence of minor amounts of these substances could not be excluded. A model experiment indicated that hyaluronic acid retards sodium diffusion, apparently due to its viscous properties rather than its electronegativity.