16,16-Dimethyl prostaglandin E2 and/or syngeneic bone marrow transplantation increase mouse survival after supra-lethal total body irradiation
- Univ. of Pittsburgh School of Medicine, PA (USA)
We evaluated the effects of 16,16-dimethyl prostaglandin E2 (dm-PGE2), with and without syngeneic bone marrow transplantation (BMT) on the survival and hematopoietic recovery of mice given 14-20 Gy total body irradiation (TBI). Survival of mice given combined dm-PGE2 and BMT was improved significantly over that of mice given either treatment alone. The 30-day survival after 14, 15, 16 or 18 Gy TBI for combined treatment was 97, 90, 20 or 10 percent, respectively. The corresponding 30-day survival rates for mice given BMT alone were 69, 60, 7 or 0 percent, respectively. For dm-PGE2 alone, 30-day survival was 63, 20, 10 or 0 percent, respectively. Deaths in both dm-PGE2 treated groups generally occurred after day 10 whereas deaths in the BMT group occurred before day 10. All irradiated controls were dead on or before day 10; after larger doses, deaths clustered around day 5. After 20 Gy TBI, all mice in all groups were dead by day 7. Studies of white blood cell recovery 1-9 days after 14 Gy TBI showed improvement with BMT, whereas dm-PGE2 did not enhance recovery. Nucleated cells per humerus, spleen weight, and spleen iron uptake (erythropoiesis) were also improved by BMT but not dm-PGE2.
- OSTI ID:
- 6639752
- Journal Information:
- International Journal of Radiation Oncology, Biology and Physics; (USA), Vol. 18:6; ISSN 0360-3016
- Country of Publication:
- United States
- Language:
- English
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16,16-Dimethyl prostaglandin E2 increases survival in mice following irradiation
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BONE MARROW CELLS
TRANSPLANTS
PROSTAGLANDINS
RADIOSENSITIVITY EFFECTS
BIOLOGICAL RADIATION EFFECTS
CESIUM ISOTOPES
GAMMA RADIATION
MICE
RADIATION INJURIES
SURVIVAL TIME
WHOLE-BODY IRRADIATION
ALKALI METAL ISOTOPES
ANIMAL CELLS
ANIMALS
BIOLOGICAL EFFECTS
CONNECTIVE TISSUE CELLS
ELECTROMAGNETIC RADIATION
EXTERNAL IRRADIATION
INJURIES
IONIZING RADIATIONS
IRRADIATION
ISOTOPES
MAMMALS
RADIATION EFFECTS
RADIATIONS
RODENTS
SOMATIC CELLS
VERTEBRATES
560152* - Radiation Effects on Animals- Animals