Abstract |
Inhibition of microbial enzymes in human dental plaque catalyzing the cleavage of the disaccharides maltose, sucrose and lactose was carried out with the alpha-glucosidase inhibitor, acarbose. The maltases from plaque homogenates were totally inhibited, whereas the inhibition of the invertases varied considerably. With increasing inhibitor concentrations, from 1 mM to 50 mM, the inhibition of the invertases increased. Preincubation for 30 min of the plaque homogenate with inhibitor resulted in a 20% increase of the inhibition of invertase activity. The inhibitor showed non-competitive inhibition of the invertases in the homogenates, whereas the maltases were competitively inhibited. The lactases were not inhibited at all. The invertases from human dental plaque may be alpha-glucosidases and/or beta-fructosidases.
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Authors | N E Fiehn, D Moe |
Journal | Scandinavian journal of dental research
(Scand J Dent Res)
Vol. 90
Issue 2
Pg. 124-30
(Apr 1982)
ISSN: 0029-845X [Print] Denmark |
PMID | 6803351
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Disaccharides
- Glycoside Hydrolase Inhibitors
- Oligosaccharides
- Trisaccharides
- Glycoside Hydrolases
- beta-Galactosidase
- beta-Fructofuranosidase
- Acarbose
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Topics |
- Acarbose
- Dental Plaque
(enzymology)
- Disaccharides
(metabolism)
- Glycoside Hydrolase Inhibitors
- Glycoside Hydrolases
(antagonists & inhibitors)
- Humans
- Oligosaccharides
(pharmacology)
- Time Factors
- Trisaccharides
(pharmacology)
- beta-Fructofuranosidase
- beta-Galactosidase
(antagonists & inhibitors)
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