DU Weixia, FU Yinghua, LEI Shujie, et al. Comparison on sensitivity of chromosome aberrations induced by ionizing radiation between newborns and adults[J]. Journal of Radiation Research and Radiation Processing, 2004,22(3):185-188.
DU Weixia, FU Yinghua, LEI Shujie, et al. Comparison on sensitivity of chromosome aberrations induced by ionizing radiation between newborns and adults[J]. Journal of Radiation Research and Radiation Processing, 2004,22(3):185-188.DOI:
To compare the sensitivity of chromosome aberrations induced by ionizing radiation between newborns and adults, Cord bloods from newborns and peripheral blood from adults were exposed to ,60,Co γ−rays under same condition, and then the chromosome aberrations were analyzed by using conventional method. Results: Dicentric frequency in lymphocytes of newborns induced with 2.0Gy and 3.0Gy is about 130% more than those of adults. And the frequencies of acentric aberrations between newborns and adults are almost same; The frequencies of dicentric in lymphocytes from newborns induced by ,60,Co γ−rays fits linear-quadratic dose-response equation which is described by the formula,y,=4.8104,D,2,+5.8314,D,+0.0034 (,r,=0.9982). Sensitivity of newborn to ionizing radiation is significantly higher than that of adult.