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J Radiat Prot > Volume 22(2); 1997 > Article
Journal of Radiation Protection 1997;22(2):103-0.
ELISA방법에 의한 방사선 피폭 후 흰쥐 혈액 내에서의 ceruloplasmin 정량
김민규;박선영;김국찬;이강석;
Quantification of Ceruloplasmin in Wale Rats Exposed to ${gamma}$-radiation by Enzyme Linked Immunosorbent Assay
Kim, In-Gyu;Park, Seon-Young;Kim, Kug-Chan;Lee, Kang-Suk;
ABSTRACT
Adult male rats were exposed to a whole body with a single dose of 1.0, 2.0, 3.0, 5.0, and 7.0 Gy. The animals were sacrificed 48, 72, 96 and 216 hours following exposure. A competitive enzyme linked immunosorbent assay(ELISA) with antigen immobilized on the solid phase has been developed to measure ceruloplasmin in rat serum and complete dose response curves. Ceruloplasmin was purified from the plasma of turpentine treated male rats. Coating of ceruloplasmin had more effectiveness in 10 mM Tris-HCI, 150 mM sodium chloride, pH 7.4 than in 50 mM carbonate/bicarbonate buffer, pH 9.6. The coating range for ceruloplasmin was $70{sim}140ng$/well. Levels of ceruloplasmin increased to maximum on the $72{sim}96$ hours after irradiation. Slope of between response and dose was greatest value 96 hours following irradiation. Normal ceruloplasmin levels were not recorded 216 hours following exposure. In 0.1 Gy irradiated group, levels of ceruloplasmin also increased to maximum on the $72{sim}96$ hours following irradiation. The concentration of this protein remained significantly different from control value, 196 hours after exposure. Ceruloplasmin was identified as one of the major acute phase protein following irradiation and further studies about gene expression and regulation would be necessary for radiation protection.
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