SUN Yimin,LIU Shuzheng.Effect of whole body X irradiation on production of nitric oxide in peritoneal macrophages of mice[J].Chinese Journal of Radiological Medicine and Protection,2000,20(4):232-234 |
Effect of whole body X irradiation on production of nitric oxide in peritoneal macrophages of mice |
Received:October 29, 1999 |
DOI: |
KeyWords:Irradiation Macrophages Induced nitric oxide synthase Nitric oxide |
FundProject:国家自然科学基金资助项目(39570188) |
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Abstract:: |
Objective To disclose the changes of nitric oxide (NO) in murine peritoneal macrophages at different time intervals after whole body irradiation (WBI) with 75 mGy and 2.0 Gy X-rays and the changes of NOand induced nitric oxide synthase (iNOS)24 hours after WBIwith 0.05-6.0 Gy X-rays. Methods Immunohistochemistry and spectophotometry were used. Results The expression of iNOSand the production of NOincreased in a dose-dependent manner after irradiation.The production of NOincreased from 6h to 48h and reached its peak at 48h, which was 3.8-fold of sham-irradiated controls. Conclusion Ionizing radiation stimulates expression of iNOSand production of NOin peritoneal macrophages of mice. |
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