Changes in ornithine decarboxylase activity during matrix-induced cartilage, bone and bone marrow differentiation

N. C. Rath; A Hari Reddi

doi:10.1016/0006-291X(78)91636-4

Changes in ornithine decarboxylase activity during matrix-induced cartilage, bone and bone marrow differentiation

N. C. Rath, A Hari Reddi

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Subcutaneous transplantation of coarse powders of demineralized rat diaphyseal bone matrix into allogeneic recipients results in new bone formation. The changes in ornithine decarboxylase activity during such bone matrix-induced sequential differentiation of cartilage, bone and bone marrow were investigated. There was a peak in ornithine decarboxylase activity on day 3 corresponding to the appearance of fibroblasts in close contiguity to the bone matrix. This was followed by another peak of enzyme activity on day 8 which was correlated with the onset of proliferation of presumptive osteoblasts and vascular endothelial cells. The peak of ornithine decarboxylase activity on day 3 appears to be a demineralized bone matrix-specific event. Induction of ornithine decarboxylase activity represents one of the early responses to implanted bone matrix.

Original language	English (US)
Pages (from-to)	106-113
Number of pages	8
Journal	Biochemical and Biophysical Research Communications
Volume	81
Issue number	1
DOIs	https://doi.org/10.1016/0006-291X(78)91636-4
State	Published - Mar 15 1978
Externally published	Yes

ASJC Scopus subject areas

Biochemistry
Biophysics
Molecular Biology

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abstract = "Subcutaneous transplantation of coarse powders of demineralized rat diaphyseal bone matrix into allogeneic recipients results in new bone formation. The changes in ornithine decarboxylase activity during such bone matrix-induced sequential differentiation of cartilage, bone and bone marrow were investigated. There was a peak in ornithine decarboxylase activity on day 3 corresponding to the appearance of fibroblasts in close contiguity to the bone matrix. This was followed by another peak of enzyme activity on day 8 which was correlated with the onset of proliferation of presumptive osteoblasts and vascular endothelial cells. The peak of ornithine decarboxylase activity on day 3 appears to be a demineralized bone matrix-specific event. Induction of ornithine decarboxylase activity represents one of the early responses to implanted bone matrix.",

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AB - Subcutaneous transplantation of coarse powders of demineralized rat diaphyseal bone matrix into allogeneic recipients results in new bone formation. The changes in ornithine decarboxylase activity during such bone matrix-induced sequential differentiation of cartilage, bone and bone marrow were investigated. There was a peak in ornithine decarboxylase activity on day 3 corresponding to the appearance of fibroblasts in close contiguity to the bone matrix. This was followed by another peak of enzyme activity on day 8 which was correlated with the onset of proliferation of presumptive osteoblasts and vascular endothelial cells. The peak of ornithine decarboxylase activity on day 3 appears to be a demineralized bone matrix-specific event. Induction of ornithine decarboxylase activity represents one of the early responses to implanted bone matrix.

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