摘要
目的探讨芝麻酚对小鼠造血功能辐射损伤的影响。方法取雌性C 57 BL/6小鼠20只,随机分为对照组、芝麻酚组、照射组和照射+芝麻酚组,每组5只。照射组和照射+芝麻酚组小鼠接受4 Gy^(137)Cs Y射线一次性全身照射。芝麻酚组和照射+芝麻酚组小鼠照射后2 h灌胃芝麻酚(10mg/kg),连续给药7天,其余2组小鼠灌胃生理盐水。小鼠受照后7 d处死,取外周血进行血象测定,取骨髓细胞测定有核细胞数和集落形成能力。结果照射组与对照组比较,外周血白细胞、骨髓有核细胞数明显下降,粒单系集落形成单位(colony—forming unit—granulocyte/macrophage,CFU—GM)显著下降(P<0.05)。照射+芝麻酚组与照射组相比,骨髓有核细胞数和粒单系克隆形成能力增加,差异有统计学意义(P<0.05)。结论芝麻酚对小鼠4 Gy射线照射后造血功能有一定的保护作用,可能是通过增加造血祖细胞增殖能力起到保护作用。
Objective To observe the effect of sesamol on the hematopoietic system in mice exposed to 4 Gy irradiation. Method Twenty C 57 BL/6 mice were randomly divided into control group, sesamol group, irradiated group and irradiated+sesamol group (n=5). Mice of control and sesamol group received sham irradiation, and the rest exposed to 4 Gy total body irradiation, dose rate 1.01 Gy/min. Mice in sesamol group and irradiated+sesamol group received a dose of 10 mg/kg sesamol administered by gavage every day for 7 days after irradiation exposure. Mice of other two groups were treated with vehicle solution. After 4 Gy irradiation 7 day, the peripheral bloods were collected. The levels of colony forming units-granulocyte-macrophage (CFU-GM) were detected. Results Compared to irradiation group, the level of WBC、cell count of BMNCs and CFU-GM significantly decreased in the irradiated mice, decreased in the irradiated mice (P<0.05). Compared to irradiation group, cell count of BMNCs and CFU-GM in the irradiated+sesamol group increased significantly (P<0.05). Conclusion Sesamol has a certain impact on the radiation-induced changes in hematopoietic system. The mechanism need to be further explored.
出处
《中国生化药物杂志》
CAS
北大核心
2014年第1期26-28,共3页
Chinese Journal of Biochemical Pharmaceutics
基金
国家自然科学基金(81072237)
协和青年基金和中央高校基本科研业务费专项资金(3332013044)
中国医学科学院放射医学研究所学科发展专项基金(sz1340)
关键词
芝麻酚
全身照射
外周血
sesamol
irradiation
peripheral blood
