Role of some radioprotectors on 59Fe uptake in bone marrow after whole-body gamma irradiation to mice.

59Fe uptake in the femur has been studied at four time intervals up to 10 days in mice receiving pretreatment with hydroxytryptophan (HT), AET, MPG and combination of HT and AET or MPG and exposed to 6 Gy whole-body gamma irradiation. MPG or 20 mg/kg dose of AET pretreatment has failed to improve upon the 59Fe uptake depression induced by the gamma irradiation to mice at any of the time intervals. AET (200 mg/kg), HT + AET (20 mg/kg) and HT + MPG treatments though have failed to prevent the initial 59Fe uptake depression induced by the irradiation, have helped a speedy recovery in the iron uptake so that normal level of uptake is obtained on the 7th day. Pretreatment with the HT dose also helps in a speedy recovery as judged on the 7th day and a normal 59Fe uptake is reached in these animals by the 10th day.