Biomaterial Database

Effects of topical glucocorticoid medication on collagen biosynthesis in the dental pulp. 1975

V J Uitto, and R Antila, and R Ranta

The aim of the study was to observe pulpal collagen synthesis in response to trauma and to glucocorticoid medication. The material consisted of 290 rabbit pulps and 76 human premolar pulps. Collagen synthesis was determined by incubating whole pulps in a medium containing [14C]proline, and measuring the formation of [14C]hydroxyproline. The effect of glucocorticoids was studied in vitro using rabbit pulps. Hydrocortisone and dexamethasone inhibited collagen synthesis, whereas prednisolone had no marked effect. Hydrocortisone was found to inhibit the synthesis of [14C]hydroxyproline in neutral salt soluble and insoluble non-dialyzable collagen fractions. [14C]hydroxyproline in the dialyzable fraction was increased, suggesting that hydrocortisone increased collagen degradation. In the human material, premolar pulps were experimentally exposed and then medicated with capping agents. The contralateral teeth were exposed and capped with other capping materials, in some cases they were left as intact controls. The exposure led to an increase in the collagen synthesis as indicated by increased [14C]hydroxyproline formation and elevated protocollagen proline hydroxylase activity in the pulp. This enzyme activity was suppressed in pulps capped with a glucocorticoid paste. In addition, the collagen synthesis rate was lower in pulps treated with another glucocorticoid containing compound, when compared to pulps capped with a calcium hydroxide preparation.

UI	MeSH Term	Description	Entries
D008696	Methandrostenolone	A synthetic steroid with anabolic properties that are more pronounced than its androgenic effects. It has little progestational activity. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1188)	Dehydromethyltestosterone,Metandienone,Methandienone,Dianabol,Metanabol,Nerobol
D011239	Prednisolone	A glucocorticoid with the general properties of the corticosteroids. It is the drug of choice for all conditions in which routine systemic corticosteroid therapy is indicated, except adrenal deficiency states.	Di-Adreson-F,Predate,Predonine,Di Adreson F,DiAdresonF
D011392	Proline	A non-essential amino acid that is synthesized from GLUTAMIC ACID. It is an essential component of COLLAGEN and is important for proper functioning of joints and tendons.	L-Proline,L Proline
D011393	Procollagen-Proline Dioxygenase	A mixed-function oxygenase that catalyzes the hydroxylation of a prolyl-glycyl containing peptide, usually in PROTOCOLLAGEN, to a hydroxyprolylglycyl-containing-peptide. The enzyme utilizes molecular OXYGEN with a concomitant oxidative decarboxylation of 2-oxoglutarate to SUCCINATE. The enzyme occurs as a tetramer of two alpha and two beta subunits. The beta subunit of procollagen-proline dioxygenase is identical to the enzyme PROTEIN DISULFIDE-ISOMERASES.	Protocollagen Prolyl Hydroxylase,Procollagen Prolyl 4-Hydroxylase,4-Hydroxylase, Procollagen Prolyl,Dioxygenase, Procollagen-Proline,Hydroxylase, Protocollagen Prolyl,Procollagen Proline Dioxygenase,Procollagen Prolyl 4 Hydroxylase,Prolyl 4-Hydroxylase, Procollagen,Prolyl Hydroxylase, Protocollagen
D011817	Rabbits	A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes.	Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
D002126	Calcium Hydroxide	A white powder prepared from lime that has many medical and industrial uses. It is in many dental formulations, especially for root canal filling.	Hydroxide, Calcium
D003094	Collagen	A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH).	Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D003707	Demeclocycline	A TETRACYCLINE analog having a 7-chloro and a 6-methyl. Because it is excreted more slowly than tetracycline, it maintains effective blood levels for longer periods of time.	Demethylchlortetracycline,Declomycin,Demeclocycline Hydrochloride,Demeclocycline Monohydrochloride,Demeclocycline, 4-epimer,Demeclocycline, Calcium (1:1) Salt,Demeclocycline, Calcium (1:2) Salt,Ledermycin,Lédermycine,Hydrochloride, Demeclocycline,Monohydrochloride, Demeclocycline
D003782	Dental Pulp	A richly vascularized and innervated connective tissue of mesodermal origin, contained in the central cavity of a tooth and delimited by the dentin, and having formative, nutritive, sensory, and protective functions. (Jablonski, Dictionary of Dentistry, 1992)	Dental Pulps,Pulp, Dental,Pulps, Dental
D003868	Dequalinium	A topical bacteriostat that is available as various salts. It is used in wound dressings and mouth infections and may also have antifungal action, but may cause skin ulceration.	Decamine,Dequadin,Dequalinium Acetate,Dequalinium Chloride,Dequalinium Di-10-undecenoate,Dequalinium Diacetate,Dequalinium Dibromide,Dequalinium Dichloride,Dequalinium Diiodide,Dequalinium Diundecenoate,Dynexan-MHP,Evazol,Fluomycin,Gargilon,Gurgellösung-Ratiopharm,Labosept,Maltyl,Solvidont,Sorot,Acetate, Dequalinium,Chloride, Dequalinium,Di-10-undecenoate, Dequalinium,Diacetate, Dequalinium,Dibromide, Dequalinium,Dichloride, Dequalinium,Diiodide, Dequalinium,Diundecenoate, Dequalinium,Dynexan MHP,Gurgellösung Ratiopharm