Functional activity of canine testes during chronic exposure to gamma radiation for three years

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Space Biol. Med. (USSR) (Engl. Transl.); (United States)

OSTI ID:6676945

Fedorova, N L; Markelov, B A

Chronic gamma irradiation at the rate of 62 rad/year, had a mild effect on spermatogenesis in dogs. Delivery of additional radiation loads against this background, in doses of 42 rad at a time, aggravated the radiation effect and, together with the latter, led to progressive depression of spermatogenetic function. Thus, chronic exposure to gamma radiation for 3 years impaired spermatogenesis in dogs, and this was related to dose rate and cumulative dose of radiation. The most distinct changes were demonstrated with delivery of 125 rad/year after the 8th to 10th experimental month, but only when a cumulative dose of 80 to 100 rad was reached. In the case of combined gamma irradiation, the observed effects were related to irradiation conditions and cumulative dose; they were manifested after 6 to 7 months with delivery of a cumulative dose of 60 to 70 rad.

• OSTI ID: 6676945
• Journal Information: Space Biol. Med. (USSR) (Engl. Transl.); (United States), Journal Name: Space Biol. Med. (USSR) (Engl. Transl.); (United States) Vol. 1; ISSN SBMEA
• Country of Publication: United States
• Language: English

Related Subjects

560152* -- Radiation Effects on Animals-- Animals
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL RADIATION EFFECTS
BODY
CHRONIC EXPOSURE
CHRONIC IRRADIATION
DOGS
DOSE-RESPONSE RELATIONSHIPS
ELECTROMAGNETIC RADIATION
GAMETOGENESIS
GAMMA RADIATION
GONADS
IONIZING RADIATIONS
IRRADIATION
MALE GENITALS
MAMMALS
ORGANS
RADIATION EFFECTS
RADIATIONS
SPERMATOGENESIS
TESTES
VERTEBRATES