The characterization of the tidemark in human articular cartilage

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Abstract

The tidemark has been characterized in fourteen human diarthrodial joints using histochemical and biochemical techniques. It stained selectively for lipid as well as for the enzymes alkaline phosphatase and ATPase. Preliminary biochemical data has shown a high concentration of calcium phospholipid phosphate complexes.

Résumé

La ⪡ ligne de calcification du cartilage ⪢ a été raise en evidence dans 14 articulations diarthrodiales humaines, en utilisent des techniques histochimiques et blochimiques. Elle se colore specifiquement aver les colorations des lipides, ainsi qu'avec celles des phosphatases alcalines et de l'ATPase Des données biochimiques préliminaires y ont montré une haute concentration de complexes calcium-phospholipide-phosphate.

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∗

Summer Student Fellowship, H.S.S., Cornell University Medical College, New York.

∗∗

Orthopaedic Research Fellow, Hospital for Special Surgery.

∗∗∗

Chief, Orthopaedic Pathology, Hospital for Special Surgery.

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