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Studies on regression and regeneration in the urodele forelimb after localized ultraviolet radiation

✍ Scribed by Blum, H. F. ;Butler, E. G. ;Chang, J. J. ;Mawe, R. C. ;Schmidt, S. E.

Publisher: Wiley (John Wiley & Sons)
Year: 1957
Tongue: English
Weight: 815 KB
Volume: 49
Category: Article
ISSN: 0095-9898
DOI: 10.1002/jcp.1030490109

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✦ Synopsis

FIVE FIGURES

Regeneration of parts after amputation, and the development of supernumerary structures after various experimental treatments, are characteristic of the larvae of urodele amphibia. I n the case of the limb, both phenomena are ordinarily preceded by some regression of the tissues involved.

An earlier paper (Butler and Blum, '55) described regeneration of supernumerary appendages of the elbow region of the forelimb of AmbZystonza, after exposure of that area to ultraviolet radiation. I n the present paper we are concerned with quantitative studies of regression of the forearm, caused by localized irradiation with ultraviolet light, and with regeneration, after amputation in the irradiated area. Photorecovery, brought about by illumination with "visible" light immediately after the ultraviolet radiation has been included in our study.

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