The presence of lysylpyridinoline in the hypertrophic cartilage of newly hatched chicks

Michael W. Orth, Daniel A. Martinez, Mark E. Cook, Arthur C. Vailas

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

The presence of lysylpyridinoline (LP) as a nonreducible cross-link in appreciable quantities has primarily been limited to the mineralized tissues, bone and dentin. However, the results reported here show that LP is not only present in the hypertrophic cartilage of the tibiotarsus isolated from newly hatched broiler chicks, but it is approx. 4-fold as concentrated as hydroxylysylpyridinoline (HP). Bone and articular cartilage surrounding the hypertrophic cartilage do not contain measurable quantities of LP. Purified LP has a fluorescent scan similar to purified HP and literature values, confirming that we indeed were measuring LP. Also, the cartilage lesion produced by immature chondrocytes from birds with tibial dyschondroplasia had LP but the HP:LP ratio was > 1. Thus, the low HP:LP ratio could be a marker for hypertrophic cartilage in avians.

Original languageEnglish
Pages (from-to)229-232
Number of pages4
JournalBBA - General Subjects
Volume1157
Issue number2
DOIs
StatePublished - Jun 11 1993

Keywords

  • (Chicken)
  • Collagen
  • Cross-linking
  • Hypertrophic cartilage
  • Tibial dyschondroplasia

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