資源描述:
《青蒿素對糖尿病大鼠腎臟保護作用機制研究.pdf》由會員上傳分享,免費在線閱讀,更多相關內容在行業(yè)資料-天天文庫。
1、·2862‘現(xiàn)代中西醫(yī)結合雜志ModernJournalofIntegratedTraditionalChineseandWesternMedicine2014Sep,23(26)青蒿素對糖尿病大鼠腎臟保護作用機制研究張麗坤,周鳳嬌,蘇彥君,張建勇,安志霞(河北省石家莊市第二醫(yī)院,河北石家莊050051)[摘要]目的探討青蒿素對糖尿病大鼠腎基質金屬蛋白酶一2(MMP一2)及其抑制物金屬蛋白酶一2組織抑制物(TIMP一2)表達的調節(jié)作用。方法將大鼠隨機分為對照組(A組)、糖尿病非治療組(B組)及糖尿病青蒿素治療組(c組),采用腹腔單劑量注射鏈脲佐菌素(STZ)
2、65mg/kg方法以建立糖尿病大鼠模型。c組給予青蒿素300g/(kg·d)腹腔注射。實驗進行到第3周、第6周時3組分別宰殺大鼠6只,檢測腎質量/體質量、24h尿白蛋白排泄率(UAER)及肌酐清除率(Ccr)。用免疫組化染色方法分別檢測腎小球Ⅳ型膠原、TIMP一2、MMP一2和纖維連接蛋白(FN)表達情況。結果c組大鼠Ccr、UAER、腎質量/體質量均顯著低于B組(P<0.05或0.O1)。免疫組化染色證明糖尿病大鼠腎小球Ⅳ型膠原、FN和TIMP一2表達都明顯上調(P<0.05或0.01),c組上述指標的表達都被顯著抑制(P<0.05)。MMP一2在B組大鼠
3、腎小球的表達顯著下調(P<0.01),C組其表達顯著上調(P<0.05)。結論青蒿素通過抑制糖尿病大鼠腎小球TIMP一2表達及增加MMP一2表達,從而保護糖尿病實驗大鼠腎臟功能。[關鍵詞]青蒿素;金屬蛋白酶一2組織抑制物;基質金屬蛋白酶一2;糖尿病腎病doi:10.3969/j.issn.1008—8849.2014.26.005[中圖分類號]R一332[文獻標識碼]A[文章編號]1008—8849(2014)26—2862—03StudyonthemechanismofrenOprOtectiveeffectsofartemisininindiabetic
4、ratsZhangLikun,ZhouFengjiao,SuYanjun,ZhangJianyong,AnZhixia(TheSecondHospitalofShijiazhuang,Hebei,Shijiazhuang050051,Hebei,China)Abstract:0bjectiveItistoexploretheregulareffectofartemisininontheexpressionofMMP一2andTIMP一2india—beticrats.MethodsTheratswererandomlydividedintocontrolgr
5、oup(Agroup),diabeticgroupwithnontreatment(Bgroup),diabeticgrouptreatedwithartemisinin(Cgroup).Thediabeticratmodelswereestablishedbyintraperitonealinjec—tionwithSTZ65mg/kg.GroupCwasgivenartemisinin300g/(kg·d)byintraperitonealinjection.6ratsinthethreegroupswerekilledtodeterminekidney
6、weight/bodyweight,Ccr,UAERafter3and6weeksoftreatmentwithartemisinin,mean—whileFN,TIMP一2,collagenIVproteinandMMP一2expressionsweremeasuredbyimmunohistologicalstaining.ResultsCcr,UAERandkidney/bodyweightratiointheratsofgroupCweresignificantlylowerthanthoseoftheratsingroupB(P<0.05or0.0
7、1).ImmunohistologicalstainingshowedthattheproteinexpressionsofFN,collagen1VandTIMP一2significantlyincreasedinglomeruli,whileMMP一2proteinsignificantlydecreasedindiabeticrats(P<0.05or0.01).TheabnormalleveloftheseproteinswaspartlyreversedingroupC(P<0.05).ConclusionArtemisininhassomeren
8、oprotectiveefectsindiabet—