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Journal of Cell Science, Vol 12, 925-932, Copyright © 1973 by Company of Biologists

Submitted on July 10, 1972

The Mammalian Intervertebral Disk: Fibrous Structures of the Whale Nucleus Pulposus

J. J. LUDOWIEG 1 and J. PARKER 1

1 Department of Orthopaedic Surgery, University of California, San Francisco, U.S.A.

Striated fibres showing a beaded appearance in the electron microscope were prepared from the insoluble collagen residue of foetal nucleus pulposus. The assembling and stability of the beaded fibres are controlled to a significant degree by electrostatic forces. In acid solutions (pH 2·0) the organization of the structures is preserved. Analytical data on the preparations show the presence of proteoglycans containing chondroitin sulphate and keratan sulphate, as well as collagen.

Submitted on July 10, 1972






© The Company of Biologists Ltd 1973