Chondroitin sulfate
Sulfated glycosaminoglycan (GAG) compound / From Wikipedia, the free encyclopedia
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Chondroitin sulfate is a sulfated glycosaminoglycan (GAG)[1] composed of a chain of alternating sugars (N-acetylgalactosamine and glucuronic acid). It is usually found attached to proteins as part of a proteoglycan.[1] A chondroitin chain can have over 100 individual sugars, each of which can be sulfated in variable positions and quantities. Chondroitin sulfate is an important structural component of cartilage,[2] and provides much of its resistance to compression.[3] Along with glucosamine, chondroitin sulfate has become a widely used dietary supplement for treatment of osteoarthritis, although large clinical trials failed to demonstrate any symptomatic benefit of chondroitin.