PMID: 6111382Jan 1, 1981Paper

A comparative study on the occurrence and activity of extracellular matrix vesicles in young and adult rat maxillary bone

Calcified Tissue International
J SelaA Muhlrad

Abstract

The occurrence of matrix vesicles in the maxillary bone of normal young and adult rats was demonstrated by both ultrastructural and enzymatic studies. Transmission electron microscopy revealed that the vesicles are invested in trilaminar membranes. Occasionally, crystals were found both within the vesicles and in the surrounding matrix. Separated fractions of vesicles, membranes, and cells were studied biochemically. The amounts of vesicular protein and enzymatic activity per gram bone in the adult rats were significantly lower than in the young. This coincides with the higher number of vesicles observed in the TEM specimens of young rats when compared to that in the old ones. The specific activities of all enzymes examined in the three bone fractions obtained from both young and adult rats were similar. This indicates that no significant difference exists in the enzymatic characteristics of matrix vesicles from the maxillary bone of young and adult rats.

References

May 1, 1976·The Proceedings of the Nutrition Society·K J Carpenter
Jun 1, 1975·Proceedings of the National Academy of Sciences of the United States of America·F BettsA L Lehninger
Nov 1, 1970·Proceedings of the National Academy of Sciences of the United States of America·S Y AliH C Anderson

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Citations

Mar 1, 1984·The Journal of Cell Biology·A L Arsenault, F P Ottensmeyer
Jan 1, 1984·Cell and Tissue Research·M NilssonL E Ericson
Oct 1, 1993·Journal of Oral Pathology & Medicine : Official Publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology·M Imai, Y Hayashi
Jan 1, 1981·Metabolic Bone Disease & Related Research·D DeutschJ Sela
Jan 2, 2001·Critical Reviews in Oral Biology and Medicine : an Official Publication of the American Association of Oral Biologists·J SelaZ Schwartz

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