NOVEL CHONDROITIN SULFATE HAVING DECREASED MOLECULAR WEIGHT AND USE THEREOF

摘要

An object of the present invention is to provide a chondroitin sulfate having a decreased molecular weight which has utilization as an inhibitor of peritoneal disorder caused by long-term use of a peritoneal dialysis fluid containing glucose or a polysaccharide thereof as an osmotic agent, utilization as an osmotic agent in a peritoneal dialysis fluid, and the like. The chondroitin sulfate having a decreased molecular weight of the present invention as a means for achieving the object is characterized by having a weight average molecular weight of from 1000 to 20000 and containing a constituent disaccharide unit represented by the following structural formula in an amount of from 65 % to 100 %(molar ratio) of the total. - [4GlcA.beta.1-3GalNAc ( 6S) .beta.1] -(wherein G1cA represents a D-glucuronic acid residue; GalNAc represents an N-acetyl-D-galactosamine residue; .beta.1-3 represents a .beta.1-3 glycosidic linkage; .beta.1-4 represents a .beta.1-4 glycosidic linkage; and (6S) indicates that position 6 of the monosaccharide residue is sulfated)