Biomaterial Database

Content and composition of glycosaminoglycans in human knee joint cartilage. Variation with site and age in adults. 1975

A Bjelle

The content and composition of the matrix of human articular cartilage from two sites - the condylar summits and the upper, posterior surfaces of both lateral and medial sides - of the lower femoral epiphysis of 12 autopsy cases (age 18-46 years) were analyzed. A significantly higher content of both chondroitin sulphate and especially of keratan sulphate was found in cartilage of the condylar summits. The solubility profile of keratan sulphate showed changes indicating a difference between the metabolism of cartilage of the two sites. No significant change with side (medial or lateral) was found. A small decrease in the chondroitin sulphate to keratan sulphate ratio without change in the total amount of hexosamines with age was found on the caudal condylar summits in these adult individuals below the age of 50.

UI	MeSH Term	Description	Entries
D007632	Keratan Sulfate	A sulfated mucopolysaccharide initially isolated from bovine cornea. At least two types are known. Type I, found mostly in the cornea, contains D-galactose and D-glucosamine-6-O-sulfate as the repeating unit; type II, found in skeletal tissues, contains D-galactose and D-galactosamine-6-O-sulfate as the repeating unit.	Keratosulfate,Sulfate, Keratan
D007719	Knee Joint	A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.	Superior Tibiofibular Joint,Joint, Knee,Joint, Superior Tibiofibular,Knee Joints,Superior Tibiofibular Joints,Tibiofibular Joint, Superior
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011506	Proteins	Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.	Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D002358	Cartilage, Articular	A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact.	Articular Cartilage,Articular Cartilages,Cartilages, Articular
D002809	Chondroitin Sulfates	Derivatives of chondroitin which have a sulfate moiety esterified to the galactosamine moiety of chondroitin. Chondroitin sulfate A, or chondroitin 4-sulfate, and chondroitin sulfate C, or chondroitin 6-sulfate, have the sulfate esterified in the 4- and 6-positions, respectively. Chondroitin sulfate B (beta heparin; DERMATAN SULFATE) is a misnomer and this compound is not a true chondroitin sulfate.	Chondroitin 4-Sulfate,Chondroitin 6-Sulfate,Chondroitin Sulfate A,Chondroitin Sulfate C,Blutal,Chondroitin 4-Sulfate, Aluminum Salt,Chondroitin 4-Sulfate, Potassium Salt,Chondroitin 6-Sulfate, Potassium Salt,Chondroitin 6-Sulfate, Sodium Salt,Chondroitin Sulfate,Chondroitin Sulfate 4-Sulfate, Sodium Salt,Chondroitin Sulfate, Calcium Salt,Chondroitin Sulfate, Iron (+3) Salt,Chondroitin Sulfate, Iron Salt,Chondroitin Sulfate, Potassium Salt,Chondroitin Sulfate, Sodium Salt,Chondroitin Sulfate, Zinc Salt,Chonsurid,Sodium Chondroitin Sulfate,Translagen,Chondroitin 4 Sulfate,Chondroitin 4 Sulfate, Aluminum Salt,Chondroitin 4 Sulfate, Potassium Salt,Chondroitin 6 Sulfate,Chondroitin 6 Sulfate, Potassium Salt,Chondroitin 6 Sulfate, Sodium Salt,Chondroitin Sulfate 4 Sulfate, Sodium Salt,Chondroitin Sulfate, Sodium,Sulfate, Chondroitin,Sulfate, Sodium Chondroitin,Sulfates, Chondroitin
D006025	Glycosaminoglycans	Heteropolysaccharides which contain an N-acetylated hexosamine in a characteristic repeating disaccharide unit. The repeating structure of each disaccharide involves alternate 1,4- and 1,3-linkages consisting of either N-acetylglucosamine (see ACETYLGLUCOSAMINE) or N-acetylgalactosamine (see ACETYLGALACTOSAMINE).	Glycosaminoglycan,Mucopolysaccharides
D006595	Hexosamines	AMINO SUGARS created by adding an amine group to a hexose sugar.	Hexosamine
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006909	Hydroxyproline	A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation.	Oxyproline,4-Hydroxyproline,cis-4-Hydroxyproline,4 Hydroxyproline,cis 4 Hydroxyproline