Protective effects of parathyroid hormone on radiation-induced hematopoietic damage in mice
10.3760/cma.j.issn.0254-5098.2011.05.008
- VernacularTitle:甲状旁腺素对辐射损伤小鼠造血功能的防护作用
- Author:
Xiaoqing FENG
;
Zhiyong HU
;
Huaqing LIU
;
Xiaofei DING
;
Bingyan LI
;
Zengli ZHANG
- Publication Type:Journal Article
- Keywords:
Parathyroid hormone;
Radiation damage;
Hematopoiesis
- From:
Chinese Journal of Radiological Medicine and Protection
2011;31(5):542-544
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the protective effects of parathyroid hormone (PTH) on radiationinduced hematopoietic damage in mice.Methods A total of sixty male C57 mice were irradiated by 60Co γ-rays to induce hematopoietic injuries,and then the mice were randomly divided into PTH and control group.The PTH-treated group was treated with PTH ( 80 μg· kg- 1 · d - 1 ) intraperitoneally everyday.The control group was given equivalent volume saline.Peripheral blood cell number,bone marrow mononuclear cell number,granulocyte-macrophage colony forming units ( CFU-GM ) and CD34 positive cells in bone marrow were detected.Results With the whole post-irradiation period,the WBC and bone marrow mononuclear cell numbers in PTH-treated mice were significantly higher than those in saline-treated mice (t=6.32,9.19,11.18,7.44 and 4.42,P ＜ 0.05).The RBC numbers in PTH-treated mice were significantly higher than those in control mice at 10 d,15 d and 20 d post-irradiation (t =6.48,3.66 and 4.98,P ＜0.05 ).The PLT numbers in PTH-treated mice were significantly higher than those in control group at 5 and 30 d post-irradiation ( t =2.57 and 3.10,P ＜ 0.05 ).PTH increased CD34 positive cell and CFU-GM numbers in bone marrow after irradiation ( t =16.12,7.82 and 20.00,P ＜ 0.05 ).Conclusions PTH could improve the hematopoietic recovery after irradiation.
