中华放射医学与防护杂志
中華放射醫學與防護雜誌
중화방사의학여방호잡지
Chinese Journal of Radiological Medicine and Protection
2011年
2期
194-196
,共3页
白慧云%穆祥%李莉%丁库克%杨李健%李杰%董小黎
白慧雲%穆祥%李莉%丁庫剋%楊李健%李傑%董小黎
백혜운%목상%리리%정고극%양리건%리걸%동소려
穿心莲内酯%辐射损伤%防护%凋亡
穿心蓮內酯%輻射損傷%防護%凋亡
천심련내지%복사손상%방호%조망
Andrographolide%Radiation injury%Prevention%Apoptosis
目的 探讨中药穿心莲内酯对大鼠放射性损伤的防护作用.方法 将60只雄性sD大鼠随机分为健康对照组、模型组和中药组.中药组大鼠定期进行穿心莲内酯溶液(分为2个剂量组)灌胃,模型组大鼠给予生理盐水灌胃,健康对照组大鼠正常饮水.10 d后给予60Coγ射线一次性全身均匀照射,1、2和4 Gy.继续饲养1 d后,处死全部动物,取其肝脏,立即用4%多聚甲醛固定,常规制作石蜡切片,采用HE染色检测肝组织细胞形态学变化,TUNEL法染色检测不同组细胞凋亡情况.结果 健康对照组和模型组大鼠肝脏HE染色显示病变相似,随辐射剂量的增大,肝细胞水肿、肝窦扩张充血、炎性反应等组织损伤程度加重;TUNEL法检测肝细胞凋亡率无明显差别.同等剂量下,中药组大鼠HE染色病变较对照组和模型组轻,且肝细胞凋亡率显著降低(t=2.19~4.80,P<0.05).结论 穿心莲内酯对辐射损伤有一定的防护作用.
目的 探討中藥穿心蓮內酯對大鼠放射性損傷的防護作用.方法 將60隻雄性sD大鼠隨機分為健康對照組、模型組和中藥組.中藥組大鼠定期進行穿心蓮內酯溶液(分為2箇劑量組)灌胃,模型組大鼠給予生理鹽水灌胃,健康對照組大鼠正常飲水.10 d後給予60Coγ射線一次性全身均勻照射,1、2和4 Gy.繼續飼養1 d後,處死全部動物,取其肝髒,立即用4%多聚甲醛固定,常規製作石蠟切片,採用HE染色檢測肝組織細胞形態學變化,TUNEL法染色檢測不同組細胞凋亡情況.結果 健康對照組和模型組大鼠肝髒HE染色顯示病變相似,隨輻射劑量的增大,肝細胞水腫、肝竇擴張充血、炎性反應等組織損傷程度加重;TUNEL法檢測肝細胞凋亡率無明顯差彆.同等劑量下,中藥組大鼠HE染色病變較對照組和模型組輕,且肝細胞凋亡率顯著降低(t=2.19~4.80,P<0.05).結論 穿心蓮內酯對輻射損傷有一定的防護作用.
목적 탐토중약천심련내지대대서방사성손상적방호작용.방법 장60지웅성sD대서수궤분위건강대조조、모형조화중약조.중약조대서정기진행천심련내지용액(분위2개제량조)관위,모형조대서급여생리염수관위,건강대조조대서정상음수.10 d후급여60Coγ사선일차성전신균균조사,1、2화4 Gy.계속사양1 d후,처사전부동물,취기간장,립즉용4%다취갑철고정,상규제작석사절편,채용HE염색검측간조직세포형태학변화,TUNEL법염색검측불동조세포조망정황.결과 건강대조조화모형조대서간장HE염색현시병변상사,수복사제량적증대,간세포수종、간두확장충혈、염성반응등조직손상정도가중;TUNEL법검측간세포조망솔무명현차별.동등제량하,중약조대서HE염색병변교대조조화모형조경,차간세포조망솔현저강저(t=2.19~4.80,P<0.05).결론 천심련내지대복사손상유일정적방호작용.
Objective To explore the effects of andrographolide(AP),extracted from the traditional Chinese herb Andrographlis paniculata(AP),on injury induced by radiation exposure.Methods Sixty male rats were randomly divided into 4 equal groups and irradiated with 60Co γ-rays at the doses of 1,2,and 4 Gy,respectively:low dose AP group(intragnstrically administered with AP at the dose of 100 ms/kg daily for 10 d before irradiation),and high dose AP group(intragastrically administered with AP at the dose of 200 ms/kg daily for 10 d before irradiation),model group(administered with the same volume of normal saline instead of AP for 10 d before irradiation),and control group(irradiated only at 3 different doses).One day after irradiation all rats were killed with their livers being fixed to make paraffin section.The morphological feature was observed under light microscope after HE staining,and the cell apoptosis was detected by TUNEL technology.Results Compared to the control and model groups,the pathological changes of liver were significantly gentler in the AP treatment groups.The apoptosis rates of the liver cells of all the AP sub-groups were significantly lower than those of the control and model subgroup(t=2.19-4.80.P<0.05).Conclusions AP might have prevention effect against radiation exposure.