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1、現(xiàn)代食品科技ModernFoodScienceandTechnology2015,Vol.31,No.6蕎麥粉對高脂膳食大鼠脂代謝的影響1,21,211,21,2王丹,葛洪娟,張笑,張嵐,宋春梅(1.吉林醫(yī)藥學院公共衛(wèi)生學院,吉林吉林132013)(2.吉林省中醫(yī)藥管理局二級實驗室,吉林吉林132013)摘要:本文研究了蕎麥粉(buckwheat,BW)對高脂膳食大鼠脂代謝的影響。將50只成年Wistar雄性大鼠隨機分為基礎對照組、高脂模型組、蕎麥粉低、中、高劑量組(1、5、10g/kg·d),每天喂食一次,飼喂30d后腹主動脈取血,取出肝臟、腎周及睪丸附近脂肪,分別
2、測定血清和肝臟中的總膽固醇(TC)、甘油三酯(TG)、高密度脂蛋白膽固醇(HDL-C)和低密度脂蛋白膽固醇(LDL-C)的水平,并觀察肝臟病理切片。結果表明,與高脂膳食組相比,蕎麥劑量組大鼠體重和食物攝入量都明顯減少,肝重和脂肪重及其指數(shù)也明顯降低,血清和肝臟中TC、TG、LDL-C的濃度降低,HDL-C的濃度升高。肝臟光鏡結構表明,蕎麥劑量組的肝臟脂肪變性均減輕,其中蕎麥粉高劑量作用最為明顯。說明蕎麥粉干預高脂膳食,可起到降血脂、改善肝臟脂代謝、保護肝臟的作用,同時能夠減少相關疾病的發(fā)生。關鍵詞:蕎麥粉;高脂膳食;脂代謝;光鏡結構文章篇號:1673-9078(201
3、5)6-23-28DOI:10.13982/j.mfst.1673-9078.2015.6.005EffectofBuckwheatonLipidMetabolisminHigh-fatDiet-fedRats1,21,211,21,2WANGDan,GEHong-juan,ZHANGXiao,ZHANGLan,SONGChun-mei(1.DepartmentofPublicandHealth,JinlinMedicalcollege,Jilin132013,China)(2.LeverTwoLaboratoryofAdministrationofTradition
4、alChineseMedicineofJilinProvince,JinlinMedicalcollege,Jilin132013,China)Abstract:Theaimofthisstudywastoelucidatetheeffectofbuckwheat(BW)onlipidmetabolisminhigh-fatdiet-fedrats.Fiftymaleratswererandomlydividedintothefollowinggroups:controldiet,high-fatdiet(HFD),low-doseBW(1g/kg·d),medium
5、doseBW(5g/kg·d),andhighdoseBW(10g/kg·d).Theratswerefedonceadayfor30days.Bloodsamplesweresubsequentlycollectedfromtheposteriorabdominalaorta,andtheliver,inaddition,perirenalfat,andepididymalfatwerecollected.Thelevelsoftotalcholesterol(TC),triglycerides(TG),highdensitylipoproteincholester
6、ol(HDL-C),andlowdensitylipoproteincholesterol(LDL-C)intheserumandliverweremeasured,andpathologicalsectionsofthelivertissueswereobserved.TheresultsshowedthatcomparedtotheHFDgroup,theweightandfoodintakeofalltheBWgroupsweresignificantlylower,theweightsandindexesoftheliverandfattissueswerea
7、lsosignificantlyreduced,theconcentrationofTC,TG,andLDL-Cintheserumandliverweredecreased,andtheconcentrationofHDL-Cwasincreased.Meanwhile,theliverstructureobservedunderthelightmicroscopeshowedthathepaticsteatosisinallBWgroupswasalleviated,withthemostsignificanteffectobservedinth