title: [Comparison of the activity for carbohydrate metabolism enzymes of plaque in different ages].
abstract: Plaque samples were collected from tooth surface by the sampling method in 28 volunteers (two groups, 14 young people, ages ranged from 19-26 years, mean: 22.29 years old; 14 old people, aged between 60-70 years, mean: 64.35 years old, DMFT > 3). The activity for three enzymes including amylases, LDH, GTF was tested by micro-chemistry enzyme analysis method. The results showed that there were no significant difference for the activity of three enzymes in two groups (P > 0.05). The finding suggests that dental plaque is a specific microecologic environment and cariogenic factor, age does not affect the activity of enzymes, plaque in different ages has similar cariogenicity.
authors.affiliation: College of Stomatology, West China University of Medical Sciences, China.
authors.forename: X
authors.initials: X
authors.lastname: Zhou
authors.forename: J
authors.initials: J
authors.lastname: Li
authors.forename: T
authors.initials: T
authors.lastname: Hu
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000681:Amylases / Q000378:metabolism*; D003773:Dental Plaque / Q000201:enzymology*; D005964:Glucosyltransferases / Q000378:metabolism*; D006801:Humans; D007770:L-Lactate Dehydrogenase / Q000378:metabolism*; D008875:Middle Aged
chemical_list: D007770:L-Lactate Dehydrogenase; D005964:Glucosyltransferases; D000681:Amylases