The major classes of GAG include hyaluronic acid (HA), heparin sulphate, heparin, chondroitin 4-sulphate, chondroitin 6-sulphate, dermatan
sulphate and keratan sulphate.
Skeletal survey of the child revealed features suggestive of mucopolysaccharidosis 1H (Hurler syndrome), which was further confirmed by quantitative and qualitative urinary glycosoaminoglycan (GAG) analysis  revealing elevated levels of dermatan
and heparan sulphate.
Examples are sulfur-containing amino acids (methionine and cysteine), which are necessary for the construction of protein structures and lead to basic substances of connective tissue (glycoproteins such as chondroitin, dermatan
, and heparan).
sulfate proteoglycans from the mineralized matrix of the avian eggshell.
Proteoglycans are glycoproteins that have a core protein with one or more covalently attached glycosaminoglycan (GAG) chains such as chondroitin sulfate and dermatan
MPS 7 is caused by the deficiency of beta-glucuronidase, an enzyme required for the breakdown of the glycosaminoglycans (GAGs) dermatan
sulfate and heparan sulfate.
Chondroitin sulfate, the dominant human glycosaminoglycan, together with hyaluronic acid comprise the majority found by amniotic fluid analysis; heparin sulfate and dermatan
sulfate are present in small amounts and undetectable in healthy pregnancies, respectively.
We also went on to monitor long-term clinical outcomes in patients with MPSI, MPSII and MPSVI after treatment to show that elevations of both this biomarker, and the dermatan
sulphate:chondroitin sulphate biomarker currently used in the diagnostic laboratory in Manchester, correlated with clinical treatment outcomes in patients.
Other examples of glycosaminoglycans in the human body include chondroitin sulfates, ketatan sulfate, heparin, heparan sulfate, and dermatan
Candidate polysaccharide or proteoglycan subunits include aggrecan, agrin, bamacan, heparan sulfate, chondroitin sulfate, keratan sulfate, versican, phosphocan, perlecan, hyaluronan, decorin, dermatan
sulfate, biglycan, fibromodulin, alginate, polylactate, polyglycolic acid, starch, dextran, agarose, chitan, chitosan, and heparin.
Structural composition and anticoagulant activity of dermatan
sulfate from the skin of the electric eel, Electrophorus electricus (L).
Eggshell membranes contain fibrous proteins such as collagen, but have also been shown to contain glycosaminoglycans (GAGs) such as dermatan
sulfate and chondroitin sulfate, hexosamines such as glucosamine, and significant amounts of hyaluronic acid, all important ingredients in joint care.