| Protein-to-wet weight relationships in supragingival plaques from caries-prone tooth surfaces. | |
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MedLine Citation:
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PMID: 485148 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The ratio of protein to wet weight in unpooled samples of supragingival plaques from sound and carious tooth surfaces was studied. Protein was assayed by a procedure developed for the study, in order to achieve a sensitivity of 1 microgram with minimum effects upon quantitation from protein composition and nonprotein components. Ratios of protein to wet weight in plaque specimens from caries-free surfaces were almost equally distributed into two main categories of 9.4% and 6.5%. Corresponding values for specimens from carious surfaces were 9.1% and 5.0%. The occurrence of high and of low values among samples from each type of surface indicated that the plaques differed quantitatively in protein, water, or a nonprotein component, possibly extracellular polysaccharide. Although compositional differences between plaques from the two types of surfaces were indicated by the lower ratios of 6.5% from noncarious and 5.0% from carious surfaces, they were not indicated by the higher ratio values, which were similar. These results suggest either that protein-to-wet weight ratios are not related to caries, or that the ratio values are related to caries for some but not all types of plaques. |
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Authors:
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M N Gilmour; G Turner; A K Krenzer; L B Zahn; J A Curzon |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Applied and environmental microbiology Volume: 38 ISSN: 0099-2240 ISO Abbreviation: Appl. Environ. Microbiol. Publication Date: 1979 Jul |
Date Detail:
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Created Date: 1979-11-21 Completed Date: 1979-11-21 Revised Date: 2010-09-02 |
Medline Journal Info:
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Nlm Unique ID: 7605801 Medline TA: Appl Environ Microbiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 119-26 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Bacterial Proteins
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analysis,
biosynthesis* Child Child, Preschool Dental Caries / metabolism* Dental Plaque / analysis* Humans Polysaccharides, Bacterial / analysis Streptococcus sanguis / analysis, metabolism* Water / analysis |
| Chemical | |
Reg. No./Substance:
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0/Bacterial Proteins; 0/Polysaccharides, Bacterial; 7732-18-5/Water |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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