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1、现代食品科技ModernFoodScienceandTechnology2015,Vol.31,No.6荞麦粉对高脂膳食大鼠脂代谢的影响1,21,211,21,2王丹,葛洪娟,张笑,张岚,宋春梅(1.吉林医药学院公共卫生学院,吉林吉林132013)(2.吉林省中医药管理局二级实验室,吉林吉林132013)摘要:本文研究了荞麦粉(buckwheat,BW)对高脂膳食大鼠脂代谢的影响。将50只成年Wistar雄性大鼠随机分为基础对照组、高脂模型组、荞麦粉低、中、高剂量组(1、5、10g/kg·d),每天喂食一次,饲喂30d后腹主动脉取血,取出肝脏、肾周及睾丸附近脂肪,分别
2、测定血清和肝脏中的总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)和低密度脂蛋白胆固醇(LDL-C)的水平,并观察肝脏病理切片。结果表明,与高脂膳食组相比,荞麦剂量组大鼠体重和食物摄入量都明显减少,肝重和脂肪重及其指数也明显降低,血清和肝脏中TC、TG、LDL-C的浓度降低,HDL-C的浓度升高。肝脏光镜结构表明,荞麦剂量组的肝脏脂肪变性均减轻,其中荞麦粉高剂量作用最为明显。说明荞麦粉干预高脂膳食,可起到降血脂、改善肝脏脂代谢、保护肝脏的作用,同时能够减少相关疾病的发生。关键词:荞麦粉;高脂膳食;脂代谢;光镜结构文章篇号: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