THE QUESTION "RECOVERY SPEED OR RESISTANCE INCREASE" OF THE X-IRRADIATED SKIN OF FROGS (RANA ESCULENTA) IN SMALL FRACTIONATION (in German)
Sixty-one frogs (Rana esculenta) were irradiated in urethan anesthesia. The right upper leg was irradiated with a surface dose of 12,000 r. The left upper legs of the same animals were irradiated subsequently with a surface dose of 2 times 6000 r, respectively 3 times 4000 r at intervals of 1, 3, 6, 24, or 72 hours. The single irradiation of 12,000 r caused changes of the pigentation and formation of ulcers after 3 weeks. After 8 weeks 35 out of 61 animals had formation of ulcers. The first tendency for healing was observed after 10 weeks. By the use of divided doses of 3 times 4000 r or 2 tirees 6000 r, with intervals as short as one hour, the effect of the irradiation caused less damage, probably due to increased resistence, which may have developed during the intervals between irradiations. (auth)
- Research Organization:
- Johannes Gutenberg-Universitat, Mainz
- NSA Number:
- NSA-13-008589
- OSTI ID:
- 4281079
- Journal Information:
- Strahlentherapie (West Germany), Vol. Vol: 108; Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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