Glycosyltransferase activities in chondrocytes from osteoarthritic and normal human articular cartilage. 1990

M Richard, and E Vignon, and M J Peschard, and P Broquet, and J P Carret, and P Louisot
Department of General and Medical Biochemistry, INSERM-CNRS U189. Lyon-Sud Medical School, Oullins, France.

Six glycosyltransferases (mannosyl-, glucosyl-, N-acetyl-glucosaminyl-, galactosyl-, sialyl- and fucosyltransferases) are studied and characterized for their optimal conditions and their relations with interfering reactions (glycosyl-nucleotide pyrophosphatases, glycosidases and proteinases) in chondrocytes from osteoarthritic and normal human articular cartilage. Osteoarthritis induces increased activities for five glycosyl-transferases. The observed modifications are not explained by alterations in physico-chemical parameters of the enzymes or by intervention of glycosyl-nucleotide pyrophosphatases, glycosidases or proteolytic enzymes.

UI MeSH Term Description Entries
D010003 Osteoarthritis A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans. Arthritis, Degenerative,Osteoarthrosis,Osteoarthrosis Deformans,Arthroses,Arthrosis,Arthritides, Degenerative,Degenerative Arthritides,Degenerative Arthritis,Osteoarthritides,Osteoarthroses
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
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
D006031 Glycosylation The synthetic chemistry reaction or enzymatic reaction of adding carbohydrate or glycosyl groups. GLYCOSYLTRANSFERASES carry out the enzymatic glycosylation reactions. The spontaneous, non-enzymatic attachment of reducing sugars to free amino groups in proteins, lipids, or nucleic acids is called GLYCATION (see MAILLARD REACTION). Protein Glycosylation,Glycosylation, Protein
D006602 Hexosyltransferases Enzymes that catalyze the transfer of hexose groups. EC 2.4.1.-.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D066298 In Vitro Techniques Methods to study reactions or processes taking place in an artificial environment outside the living organism. In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In

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