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2.
J Dent Res ; 62(10): 1067-8, 1983 Oct.
Article in English | MEDLINE | ID: mdl-6578236

ABSTRACT

Blocks of bovine enamel subjected to de- and remineralization were measured for changes in permeability to iodide and urea. Results were similar, indicating that the diffusion pathways for the two species were comparable, and that sites for iodide binding did not appear to exit.


Subject(s)
Dental Enamel Permeability/drug effects , Iodides/pharmacology , Tooth Calcification/drug effects , Tooth Permeability/drug effects , Urea/pharmacology , Animals , Cattle , Dental Caries/physiopathology , Dental Enamel/drug effects , Dental Enamel/physiology
5.
J Bacteriol ; 135(1): 161-3, 1978 Jul.
Article in English | MEDLINE | ID: mdl-670148

ABSTRACT

The presence of the isoprenoid squalene, synthesized de novo, was demonstrated in 64 out of 73 strains of gram-positive bacteria by thin-layer chromatography. This observation was confirmed by gas-liquid chromatography, chemical reactivity, incorporation of radiolabeled precursor, and by gas chromatography mass spectroscopy of thin-layer chromatography-recovered material.


Subject(s)
Bacteria/analysis , Mouth/microbiology , Squalene/analysis , Bacteria/metabolism , Chromatography, Thin Layer , Humans , Mevalonic Acid/metabolism , Species Specificity , Squalene/biosynthesis
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