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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1990-1-18
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pubmed:abstractText |
Mucus coat was isolated from oral epithelial surfaces of caries-resistant and caries-susceptible subjects, analysed for content and composition of lipids and mucus glycoproteins, and evaluated for physico-chemical characteristics. The mucus coat from caries-resistant subjects had a protein content similar to that of the caries-susceptible group but a higher content of carbohydrate and a lower content of lipids and covalently bound fatty acid. The carbohydrate component was mainly mucus glycoprotein, which accounted for 28.4% of the dry weight of caries-resistant mucus and 25.3% of caries-susceptible mucus. By chromatographic analysis on Bio-Gel A-50, both types of preparations had high (Mr approximately 2000 kdalton) and low (Mr approximately 300 kdalton) molecular-weight mucus glycoproteins. In the caries-susceptible mucus coat these two glycoproteins were in similar proportions, whereas the low molecular-weight glycoprotein predominated in caries-resistant mucus. In both preparations, the high molecular-weight glycoprotein was characterized by a high content of carbohydrates, associated lipids and covalently bound fatty acids, whereas the low molecular-weight glycoprotein was richer in protein and contained lesser amounts of associated and covalently bound lipids. Although the low molecular-weight glycoprotein showed only minor compositional differences with caries status, the high molecular-weight glycoprotein of the caries-resistant group had a 2.5 times lower content of covalently bound fatty acid, a 1.3 times lower content of associated lipids and contained 1.2 times more sulphate and sialic acid then that of the caries-susceptible group.(ABSTRACT TRUNCATED AT 250 WORDS)
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
D
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0003-9969
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
34
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
229-37
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2597017-Adult,
pubmed-meshheading:2597017-Cell Membrane Permeability,
pubmed-meshheading:2597017-Dental Caries Susceptibility,
pubmed-meshheading:2597017-Fatty Acids,
pubmed-meshheading:2597017-Female,
pubmed-meshheading:2597017-Glycoproteins,
pubmed-meshheading:2597017-Humans,
pubmed-meshheading:2597017-Lipids,
pubmed-meshheading:2597017-Male,
pubmed-meshheading:2597017-Molecular Weight,
pubmed-meshheading:2597017-Mouth Mucosa,
pubmed-meshheading:2597017-Mucins,
pubmed-meshheading:2597017-Mucus,
pubmed-meshheading:2597017-Viscosity
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pubmed:year |
1989
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pubmed:articleTitle |
Physico-chemical characteristics of mucus glycoproteins and lipids of the human oral mucosal mucus coat in relation to caries susceptibility.
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pubmed:affiliation |
Dental Research Center, New Jersey Dental School, University of Medicine and Dentistry of New Jersey, Newark 07103-2425.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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