Biomaterial Database

Synthesis of sulfated glycosaminoglycans by human gingival fibroblasts from phenytoin-induced gingival overgrowth in vitro. 1987

G Dahllöf, and A Hjerpe

The in vitro synthesis of sulfated glycosaminoglycans (GAGs) was studied in gingival fibroblasts from two patients exhibiting phenytoin(PHT)-induced gingival overgrowth, i.e. pseudopockets, which required surgical excision, from one patient on PHT medication not exhibiting pseudopockets and from two normal controls. The results showed that the newly synthesized GAGs were distributed to the culture medium, to a pericellular pool and to the cell fraction. Gingival fibroblasts from the PHT-induced gingival overgrowth showed a significantly increased incorporation of 35SO4(2-) into GAGs compared to the other strains, and this increase was mainly confined to the dermatan sulfate fraction. These results are in accordance with our previous biochemical studies where increased amounts of GAGs were found in gingival biopsies from the PHT-induced lesion.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D010672	Phenytoin	An anticonvulsant that is used to treat a wide variety of seizures. It is also an anti-arrhythmic and a muscle relaxant. The mechanism of therapeutic action is not clear, although several cellular actions have been described including effects on ion channels, active transport, and general membrane stabilization. The mechanism of its muscle relaxant effect appears to involve a reduction in the sensitivity of muscle spindles to stretch. Phenytoin has been proposed for several other therapeutic uses, but its use has been limited by its many adverse effects and interactions with other drugs.	Diphenylhydantoin,Fenitoin,Phenhydan,5,5-Diphenylhydantoin,5,5-diphenylimidazolidine-2,4-dione,Antisacer,Difenin,Dihydan,Dilantin,Epamin,Epanutin,Hydantol,Phenytoin Sodium,Sodium Diphenylhydantoinate,Diphenylhydantoinate, Sodium
D002478	Cells, Cultured	Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.	Cultured Cells,Cell, Cultured,Cultured Cell
D005347	Fibroblasts	Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules.	Fibroblast
D005885	Gingival Hyperplasia	Non-inflammatory enlargement of the gingivae produced by factors other than local irritation. It is characteristically due to an increase in the number of cells. (From Jablonski's Dictionary of Dentistry, 1992, p400)	Gingival Hyperplasias,Hyperplasia, Gingival,Hyperplasias, Gingival
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
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man