Cell death by apoptosis following X-irradiation of the foetal and neonatal rat kidney

Gobe, G. C., Axelsen, R. A., Harmon, B. V. and Allan, D. J. (1988) Cell death by apoptosis following X-irradiation of the foetal and neonatal rat kidney. International Journal of Radiation Biology, 54 4: 567-576. doi:10.1080/09553008814552011


Author Gobe, G. C.
Axelsen, R. A.
Harmon, B. V.
Allan, D. J.
Title Cell death by apoptosis following X-irradiation of the foetal and neonatal rat kidney
Journal name International Journal of Radiation Biology   Check publisher's open access policy
ISSN 0955-3002
Publication date 1988-10
Sub-type Article (original research)
DOI 10.1080/09553008814552011
Volume 54
Issue 4
Start page 567
End page 576
Total pages 10
Place of publication London, United Kingdom
Publisher Informa Healthcare
Language eng
Abstract A light and electron microscopic study was undertaken to determine the type of cell death induced by X-irradiation in the developing kidney. Five-day-old Sprague-Dawley rats were exposed to a whole-body dose of either 2 or 5 Gy, and foetuses in the eighteenth day of development were exposed to a dose of 4 Gy. The kidneys were examined at 4, 8 and 24 h, and at 1 and 2 weeks post-irradiation. The dying cells from both control and treated kidneys showed the morphological features of apoptosis, a distinct form of cell death that has been identified in mammalian tissues under physiological as well as pathological conditions. Necrosis was not detected. Apoptosis was infrequent in control kidneys and insignificant in extent when compared with the proliferative activity of the cells of the superficial nephrons. There was a pronounced increase in apoptosis during the first day after irradiation. The findings are in agreement with recent ultrastructural studies which report the presence of apoptosis following irradiation of rapidly proliferating adult cell populations, and irradiation of other immature mammalian tissues. There is evidence that apoptosis involves active cellular self-destruction, and it has been suggested that activation of apoptosis might bring about selective elimination of cells with critical DNA damage in irradiated tissues, thus minimizing propagation of genetic abnormalities.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Medicine Publications
 
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Created: Wed, 09 Mar 2011, 08:32:20 EST