Basic Biological Sciences Pre-apatitic Mineral Deposition in Bacterionema matruchotii

Boyan-Salyers, B.; Vogel, James J.; Ennever, J.

doi:10.1177/00220345780570022501

Cited by 16 publications

(4 citation statements)

References 12 publications

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“…Because no other mineral phases were detected, they postulated that amorphous calcium phosphate transformed directly to apatite. This work refuted an earlier proposition 252 that B. matruchotii mineralization involved an orderly sequence of mineral phases, terminating with apatite formation. As noted by Takazoe et al, the samples that lead to the orderly sequence theory were analyzed after high-temperature ashing (heating in a furnace), which may have altered the solid state of the specimen.…”

Section: Bacterial Control Of Apatite Mineralization?supporting

confidence: 88%

Relationships between Polyphosphate Chemistry, Biochemistry and Apatite Biomineralization

2008

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Section: Bacterial Control Of Apatite Mineralization?supporting

confidence: 88%

Relationships between Polyphosphate Chemistry, Biochemistry and Apatite Biomineralization

2008

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“…Both the calcified and uncalcified B. matruchotii cells contained the Ca-PL-P complexes, suggesting that the cells may be ~'primed" for calcification even when the Ca and phosphate concentrations were not high enough for mineralization to occur [32]. The idea that tissues might be primed for calci-fication has also been suggested by studies on matrix vesicle [33] and rachitic cartilage [5] calcification.…”

Section: Discussionmentioning

confidence: 87%

Relationship between proteolipids and calcium-phospholipid-phosphate complexes inBacterionema matruchotii calcification

Boyan-Salyers

Boskey

1980

Calcif Tissue Int

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Calcium-phospholipid-phosphate complexes (Ca-PL-P) were isolated from calcified and uncalcified Bacterionema matruchotii and its calcified lipid extracts. Similar complexes were absent from the noncalcifying bacterium Actinomyces naeslundii. The majority of the Ca-PL-P complexes were associated with the proteolipid acidic phospholipid component. Ca-PL-P complexes isolated from B. matruchotii and from calcified proteolipid contained phosphatidylinositol, phosphatidylinositol-4-phosphate, phosphatidylinositol-4,5-diphosphate, and phosphatidylserine. They consisted of approximately 52 mole % Ca, 32 mole % organic P, and 15 mole % Pi. During Ca-PL-P extraction from B. matruchotii or its proteolipid-containing calcified lipid extracts, the proteolipid was dissociated and the apoprotein precipitated as fluff at the aqueous-organic solvent interface, thus explaining the failure to detect protein in Ca-PL-P preparations. When the ability of Ca-PL-P complexes and lipid fractions of B. matruchotii to initiate apatite formation from metastable calcium phosphate solution was compared, the yield of hydroxyapatite decreased as follows: Ca-PL-P greater than proteolipid acidic phospholipids greater than proteolipid greater than crude phospholipid greater than total lipids greater than whole cells.

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“…Although the degenerative changes can also be connected to the Cu concentration its direct disturbing effect on the nucleation (1) or mineralization (2) cannot be ruled out. The role of the excess of Cu in promoting oxidation of lipids in liposomal membranes (23) might thus affect the proteolipid dependent mineralization (24)(25)(26)(27).…”

Section: Discussionmentioning

confidence: 99%

Copper in human subgingival calculus

Knuuttila

Lappalainen

Rajala

et al. 1983

European J Oral Sciences

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– The Cu concentration as well as the Ca, Mg, Fe, Pb, Zn, and F concentrations were determined in subgingival calculus and the relation of Cu to Zn, Ca, Mg and Fe described. Samples of human subgingival calculus of 60 pieces from 60 subjects were ashed in an acid solution and the cation concentrations were determined with atomic absorption spectrophotometry. The F content was analyzed with an ion‐selective electrode. The data was analyzed using the multiple linear regression analysis. The mean ±SD of the Cu concentration in the subgingival calculus was 48.4 ±59.0 μg/g. Four elements, Zn, Ca, Fe and Mg, explained 41.1% of the Cu content. Zn explained 25.5% and the correlation was positive, whereas Ca (10.4%) had a negative correlation with the Cu content. The results showed such a high Cu content that it could affect the mineralization of calculus.

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Basic Biological Sciences Pre-apatitic Mineral Deposition in Bacterionema matruchotii

Cited by 16 publications

References 12 publications

Relationships between Polyphosphate Chemistry, Biochemistry and Apatite Biomineralization

Relationships between Polyphosphate Chemistry, Biochemistry and Apatite Biomineralization

Relationship between proteolipids and calcium-phospholipid-phosphate complexes inBacterionema matruchotii calcification

Copper in human subgingival calculus

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