Subject(s)
Dental Caries/epidemiology , Tooth, Deciduous/pathology , Brazil , Child , Child, Preschool , DMF Index , Female , Humans , Male , Socioeconomic FactorsABSTRACT
The present investigation examined the activities of various enzymes associated with the carbohydrate metabolism in different phases of root development of swine deciduous dental pulps. The data showed that the potential carbohydrate metabolizing capacity of pulpal tissue was greatest in the root forming phase (two months). However, when compared with samples taken from the fully formed root (six months), a higher activity of glucose-6-phosphate dehydrogenase and lactate dehydrogenase was found in samples taken from the root resorption phase (nine months).
Subject(s)
Dental Pulp/enzymology , Tooth Root/enzymology , Tooth, Deciduous/enzymology , Animals , Carbohydrate Metabolism , Female , Glucosephosphate Dehydrogenase/metabolism , L-Lactate Dehydrogenase/metabolism , Male , Odontogenesis , Phosphofructokinase-1/metabolism , Root Resorption/enzymology , Swine , Tooth Root/physiologyABSTRACT
Male albino rats of the Wistar strain were submitted to daily doses of 15 000 I.U. of vitamin A. Enzymes of the carbohydrate metabolism were assayed in the salivary glands after 1,2, 3 and 4 doses. Phosphofructokinase showed decreased activity in the submandibular gland while it was not affected in the parotid. Glucose-6-phosphate dehydrogenase activity was higher in the submandibular glands of all experimental groups and only in the group of 1 dose for the parotid gland. Hexokinase activity did not alter in the submandibular gland while for parotid it showed higher activity only in the group of 1 dose. Pyruvate kinase activity was different only in the group of 3 doses for both glands.
