桂枝茯苓胶囊对大鼠乳腺增生病治疗作用的实验研究

目的:观察桂枝茯苓胶囊(桂枝、茯苓、牡丹皮、桃仁等)对实验性大鼠乳腺增生病的治疗作用,探讨其新疗效和作用机理.方法:本研究用肌注外源性苯甲酸雌二醇及黄体酮的方法复制大鼠乳腺增生模型,观察各组大鼠乳头形态学变化,用放射免疫方法测定各组实验性大鼠模型血浆内雌二醇(E2)、黄体酮(Pt)的含量,免疫组化方法观察乳腺组织中雌激素受体(ER)和孕激素受体(PR)的变化.结果:桂枝茯苓胶囊治疗组大鼠的乳头红肿、乳腺增大和显微小叶、腺泡、导管增生均显著轻于模型组;血液流变学指标、血浆雌二醇、乳腺组织中ER和PR含量显著低于模型组;血浆黄体酮含量则显著高于对照组.结论:桂枝茯苓胶囊对大鼠乳腺增生病有良好的治疗作用,其机理与改善血液流变、调节实验性大鼠性激素的血浓度及其受体的表达有关.

Therapeutic experimental study of Guizhifuling Capsule on hyperplasia of mammary glands in rats

AIM: To observe the therapeutic action of Guizhifuling Capsule (Ramuluo Cinnamomi, Poria, Cortex moutan, Semen Persicae, etc.)on hyperplasia of mammary glands in rast, and to explore the new therapeutic effectiveness and its mechanism. METHODS: To inject extrinsic E2 and Pt into muscle to reproduce rats model of hyperplasia of mammary glands, to observe the morphologic changes of nipple in every group, determine extradiol and progesterone content on plasma in experimental rats by radio immunoassay, and study the changes of ER and PR by immunohistochemical method. RESULTS: Compared with the model group, Guizhi Fuling Capsule can markedly abate papilledema, proliferation of lobule, acinus and duct in mammary glands, reduce obviously changes of blood, estradiol on plasma, the ER and PR content of mammary glands and increase progesterone. CONCLUSION:Cuizhi Fuling Capsules have the good therapeutic action on hyperplasia of mammary glands in rats, its mechanism is related to correcting changes of blood, adjusting the blood concentration of sexual hormone in experimental rats and its expression of receptor.