强肌健力饮对肾虚大鼠脏器组织学的影响(1)
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[摘要] 目的:观察肾虚模型大鼠肾上腺、胸腺、脾脏、睾丸脏器组织形态学的变化及强肌健力饮对其修复作用。方法:将健康雄性SD大鼠30只随机分为正常对照组,肾虚模型组, 强肌健力饮低剂量、中剂量、高剂量组和右归丸组;除正常对照组外,其他组均采用肌肉注射氢化可的松法复制肾虚模型,同时,强肌健力饮组与右归丸组灌胃给药,其他2组灌服等容积蒸馏水,连续14 d;最后1次给药后24 h,取肾上腺、胸腺、脾、睾丸进行组织病理学观察。结果:肾虚模型组大鼠肾上腺、胸腺、脾脏、睾丸均有不同程度的组织损伤;强肌健力饮与右归丸能使已遭受损伤的各脏器组织得以修复。结论:强肌健力饮对肾虚大鼠受损的肾上腺、脾脏、睾丸组织具有保护作用。
[关键词] 强肌健力饮/药理学;肾虚证/中药疗法;肾虚证/病理学;疾病模型;动物;大鼠
[中图分类号] R-332 [文献标识码]B [文章编号]1673-7210(2008)01(b)-037-03
Effects of Qiangji Jianli Decoction on morphologic organs in rats with kidney deficiency
HE Zan-hou 1, ZHAO Hui1, LI Zhi-qiang 1, CHEN Jin-yan 1, CHEN Zhi-xi 1, KUANG Zhong-sheng 2
(1.Department of Nuclear medicine, Guangzhou University of TCM, Guangzhou510405,China;2.Department of Pathology, FirstAffiliatedHospital of Guangzhou University of TCM, Guangzhou510405, China)
[Abstract] Objective:To observe the pathological changes of organs in rats with kidney deficiency and the effect of Qiangji Jianli Decoction(QJJL) on morphologic organs.Methods:30 healthy male SD rats were randomized into 6 groups: normal group, model group, QJJL preparation group (including small dosage,middle dosage, large dosage), and the group treated with Yougui Wan. Except normal group, the rats in other 5 groups received intramuscular injection of Hydrocortosonym to induce kindey deficiency. Meanwhile, groups of QJJL and Yougui Wan received the TCM by gastric gavage respectively. Other groups applied with the same volume of distilled water for 14 days.24 hours after last administration, dissecting rats and pathological changes of adrenal,thymus,spleen and testis were examined.Results:In model group, adrenal,thymus,spleen and testis showed different degrees of damage. QJJL Decoction and Yougui Wan could promote the repair of the organs.Conclusion:QJJL Decoction can relieve the injury of adrenal,thymus,spleen and testis caused by kidney deficiency and protect them.
[Key words] Qiangji Jianli Decoction/pharmacology; Kindey deficiency syndrome/TCM therapy;Kindey deficiency syndrome/pathology;Disease models;Animal;Rats
强肌健力饮是名老中医邓铁涛教授的经验方,该方对脾胃气虚型重症肌无力患者有明显的疗效[1,2],并能促进脾虚小鼠脾脏、胸腺、肾脏、肝脏组织的DNA合成[3]。本实验采用氢化可的松注射法复制肾虚动物模型,观察强肌健力饮对肾虚动物肾上腺、胸腺、脾、睾丸组织的影响,以期进一步了解该方药防治脾胃虚损型重症肌无力的作用机制,并提供病理形态学依据。
1 材料与方法
1.1 动物
SD大鼠30只,雄性,体重(200±20) g,由广东省医学实验动物中心提供。动物许可证号:SXXK(粤)粤监证字2006A015。
1.2 药物
强肌健力饮:由黄芪、党参、白术、当归、升麻等组成(购自广州致信药业,经中药学院张丹雁老师鉴定),右归丸:购于北京同仁堂广州药业有限公司,批号为:6013022;氢化可的松:购于扬州制药有限公司,批号为20060302。
1.3肾虚模型复制
将30只大鼠随机分为正常对照组、肾虚模型组、强肌健力饮高剂量组、强肌健力饮中剂量组、强肌健力饮低剂量组、右归饮组,每组5只。正常对照组每只动物后肢肌肉注射生理盐水1 ml/d,同时灌服蒸馏水2 ml/d,连续14 d 。肾虚模型组动物在后肢肌肉注射氢化可的松25 mg/(kg·d),同时灌服蒸馏水2 ml/d,连续14 d。强肌健力饮组动物在后肢肌肉注射氢化可的松25 mg/(kg·d),同时高剂量组灌服强肌健力饮23.4 g/(kg·d)、中剂量组15.6 g/(kg·d)、低剂量组7.8 g/(kg·d),连续14 d。右归饮组动物在后肢肌肉注射氢化可的松25 mg/(kg·d),同时灌服右归饮5.8 g/(kg·d),连续14 d。
1.4 样品制备与观察
各组动物最后1次给药后24 h,分别断头处死,取肾上腺、胸腺、脾、睾丸,将各器官置入10%甲醛液内固定2 h。标本经固定、包埋、切片和苏木精-伊红染色处理,最后用L2000A显微镜观察。
2病理形态学观察
2.1 肾上腺
镜下观察:肾虚模型组肾上腺皮质薄于正常组,网状带与束状带区域实质细胞缩小,胞浆减少,胞浆与胞核比例失调,核染色深。强肌健力饮低剂量、中剂量、高剂量组,右归丸用药组肾上腺皮质网状带与束状带区域实质细胞排列规则、细胞边界清楚,胞浆与胞核比例正常,髓质未见异常改变(图1)。
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