双黄升白颗粒剂对白细胞减少症模型小鼠造血细胞作用的研究

目的:探讨双黄升白颗粒剂升高白细胞作用及其作用机制。方法:采用Se-137放射源照射ICR小鼠,造成白细胞减少症动物模型,对模型动物给予双黄升白颗粒剂大、中、小剂量(分别为9.2,4.6,2.3 g.kg^-1.d^-1)灌胃,并设正常对照组,模型对照组,阳性对照利可君组。对小鼠外周血象,骨髓有核细胞(BMNC),脾结节(CFU-S)计数,胸腺指数(TI),脾脏指数(SI),骨髓细胞增殖,体外培养小鼠粒单系集落形成单位(CFU-GM),骨髓CD34+细胞比例,骨髓造血微环境等进行检测。结果:双黄升白颗粒可明显升高模型小鼠的白细胞(WBC);双黄升白颗粒可升高模型小鼠的BMNC计数并促进其骨髓细胞增殖;双黄升白颗粒升高模型小鼠CFU-S计数,提高CFU-GM产率,提高骨髓CD34+细胞比例,对造血干/祖细胞增殖具促进作用;双黄升白颗粒具有保护模型小鼠骨髓造血微环境作用;双黄升白颗粒升高模型动物SI,具有一定的免疫增强作用。结论:双黄升白颗粒剂具有明显升高白细胞作用,其作用机制与促进造血细胞增殖及保护骨髓造血微环境有关。

Experimental research of Shuanghuang Shengbai granule on hematopoietic cells of leucopenia model mice

OBJECTIVE: To investigate the leukogenic function of Shuanghuang Shengbai (SHSB) granule and the related mechanisms. METHOD: Mouse leukopenic models were induced by radiation. Mice were divided into normal control group, model control group, positive control group-Li kejun tablet group and three different dose (high, middle, low-dose) groups of SHSB granule. The peripheral hemogram, thymus index (TI), spleen index (SI), bone marrow nucleated cell (BMNC) and colony forming unit-spleen (CFU-S) were evaluated. The proliferation of bone marrow cells was determined. The in vitro cultured colony forming unit granulocyte macrophage (CFU-GM) was estimated. The index of CD34+ cell in BMNC were determined by flow cytometry. The ultra-micro structure of bone marrow were observed by electromicroscope. RESULT: (1)SHSB rranule could increase the WBC of model mice; (2)SHSB granule could increase BMNC and promote the proliferation of bone marrow cell; (3)SHSB granule could increase CFU-S, CFU-GM and CD34+ cell index in BMNC of model mice significantly; (4)SHSB Granule could also protect the bone marrow hemotopoietic microenvironment from the harm of radiation; (5)SHSB granule could increase the SI of model mice, indicating the enhancement of immunological function. CONCLUSION: SHSB granule has apparent leukogenic function. The mechanism may be related to enhancing the proliferation of hematopoietic cells and protecting the bone marrow hemotopoietic microenvironment.