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1、·58·藥學(xué)學(xué)報(bào)ActaPharmaceutieaSinica2012,47(1):58—65芝麻素對(duì)腎性高壓伴高脂高糖飲食大鼠的抗脂毒作用吳向起,楊解人(皖南醫(yī)學(xué)院藥理學(xué)教研室,安徽蕪湖2410011摘要:觀察芝麻素對(duì)腎性高壓伴高脂高糖飲食大鼠的抗脂毒作用。兩腎一夾術(shù)和高脂高糖飲食13周誘導(dǎo)復(fù)合模型大鼠34只,于第5周開始連續(xù)灌胃給予芝麻素(120、60及30mg·kg-I.d)8周。測(cè)定血壓、血脂、血糖、游離脂肪酸、胰島素、TNF—a和IL一6水平;半定量分析胰腺、腎周脂肪、肝臟病理學(xué)改變。結(jié)
2、果發(fā)現(xiàn),芝麻素(120及60mg‘kg-1。d)能降低模型大鼠血壓、血脂、血糖、TNF.a(chǎn)、IL一6和FFA水平;改善胰島素抵抗和糖耐量異常;減輕體重、內(nèi)臟脂肪、胰腺和肝臟濕重及其臟器指數(shù);減少胰島細(xì)胞增生和脂肪及肝臟細(xì)胞中脂滴空泡的數(shù)目。提示芝麻素具有抗脂毒作用,其機(jī)制可能與肝細(xì)胞脂質(zhì)沉積減輕、脂肪依賴炎癥因子TNF一和IL一6的釋放減少以及減輕胰島素抵抗有關(guān)。關(guān)鍵詞:芝麻素;腎血管性高血壓;血脂;血糖;脂毒性;胰島素抵抗中圖分類號(hào):R965文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):0513—4870(20121
3、O1.0058.08Anti-lipotoxicactionofsesaminonrenovascularhypertensiveratsfedwithahigh·fat,high-sucrosedietWUXiang—qi.YANGJie—ren(DepartmentofPharmacology,WannanMedicalCollege,Wuhu241001,China)Abstract:Thisstudyistoobserveanti-lipotoxiceffectofsesaminonren
4、ovascularhypertensiveratsfedwithahigh—fat,high‘sucrosediet.Thirty,fourcomplexmodelratswereinducedbytwo.kidney,one.clipmethodandonhigh。fatandrefined—carbohydratedietforthirteenweeks.Fromthefifthweek,intragastricadministrationofsesamin(120,60and30mg‘kg-
5、1(r_)lastedforeightweeks.Bloodpressure(BP),bloodfatfBF)。bloodglucose(BG),freefattyacids(FFA),insulin(Ins),tumornecrosisfactor(TNF).dandinterleukinfIL)。6weredetermined.Pathologicalchangesofpancreas,perirenalfatandliverweresemiquantitativelyanalyzed.Ins
6、esamin(120and60mg’kg-1.d?!?group,itwasfoundthatthereweredecreaseoflevelsofBP,BF,BG,TNF毗IL-6andFFA,improvementofinsulinresistanceandglucosetolerancealleviationofbodvweight,humid,weightoffat,liverandpancreasandtheirorganindexandreductionofisletcellhyper
7、plasiaandamountof,lipiddropletvacuolesinlipocyteandhepatocyte.Itisimpliedthatsesaminhadanti—lipotoxiceffectanditsmechanismmaybecloselyassociatedwiththeameliorationofinsulinresistanceviareducinglipidosesinhepatocyteandinflammatoryadipokinessuchasTNF一an
8、dIL.6.Keywords:sesamin;renovascularhypertensive;bloodfat;bloodglucose;lipotoxic;insulinresistance隨著社會(huì)經(jīng)濟(jì)的發(fā)展和人們飲食結(jié)構(gòu)和生活方式的改變(主要包括高鹽、高脂和高糖飲食以及運(yùn)動(dòng)量的減少),全球高壓伴高脂、高糖患者的發(fā)病率越來越高,且在青年中流行呈現(xiàn)增長(zhǎng)趨勢(shì)[”。而目前治收稿日期:2011-08.03;修回日期:2011.10.31.基金項(xiàng)目:安徽省教育廳自然科學(xué)研究基金重點(diǎn)項(xiàng)目(