Life span and tumours in the first-generation offspring of the gamma-irradiated male mouse

C57BL/6 male mice were exposed to 3 Gy 60Co gammarays and mated with unirradiated females after 15 days to produce F1 progeny produced following irradiation of the spermatids. After weaning the offsprings were allowed to live their normal life span. The mean litter size of the irradiated group signi...

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Veröffentlicht in:International journal of radiation biology 1996-04, Vol.69 (4), p.487-492
1. Verfasser: IWASAKI, T.
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description C57BL/6 male mice were exposed to 3 Gy 60Co gammarays and mated with unirradiated females after 15 days to produce F1 progeny produced following irradiation of the spermatids. After weaning the offsprings were allowed to live their normal life span. The mean litter size of the irradiated group significantly decreased from 7. 1 to 4.9 (p < 0.01), but the sex ratio was not altered by the irradiation. No significant differences in the survival curve and mean life-span between the irradiated and control groups were noted. The only radiation effect in tumour incidence was a decrease of histiocytic sarcoma in female offspring of irradiated males. Except for this, there were no significant differences between the irradiated group and the control group in the incidence or age distribution of tumours.
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source MEDLINE; Taylor & Francis Medical Library - CRKN; Taylor & Francis Journals Complete
subjects Animals
Biological and medical sciences
Carcinogenesis, carcinogens and anticarcinogens
Female
Litter Size
Lymphoma, Large B-Cell, Diffuse - etiology
Male
Medical sciences
Mice
Mice, Inbred C57BL
Neoplasms, Radiation-Induced - etiology
Paternal Exposure
Physical agents
Sex Ratio
Tumors
title Life span and tumours in the first-generation offspring of the gamma-irradiated male mouse
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