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Radiat Res. 1989 Mar;117(3):480-8.

Comparison of the gastrointestinal syndrome after total-body or total-abdominal irradiation.

Author information

1
Department of Radiation Oncology, UCLA Medical Center 90024-1714.

Abstract

In pathogen-free mice, but not standard conventionally housed laboratory rodents, two distinctly different modes of early radiation lethality can be identified by modifying the irradiation technique (total-body versus abdominal irradiation) or by therapeutic intervention such as rescue of total-body-irradiated mice with syngeneic bone marrow or spleen. While damage to the gastrointestinal tract is usually designated as the predominant cause of death occurring within 10 days of radiation exposure, it was demonstrated that damage to the hematopoietic/lymphopoietic system can result in animal lethality over the same period as the gastrointestinal syndrome and that this target cell population is more radiation-sensitive than the gastrointestinal epithelium.

PMID:
2648450
[Indexed for MEDLINE]

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