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时间:2020-06-01
《甲状旁腺激素联合辛伐他汀对成骨细胞分化及OPG和RANKL mRNA表达的影响.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、中国骨质疏松杂志2014年7月第20卷第7期ChinJOsteoporos,July2014,Vol20,No.7750PublishedonlineWWW.wanfangdate.con1.cndoi:10.3969/j.issn.1006-7108.2014.07.007·论著·甲状旁腺激素联合辛伐他汀对成骨细胞分化及OPG和RANKLmRNA表达的影响卢蕾阳刘冰高飞杨静山西医科大学第一医院内分泌科,山西太原030001中图分类号:R681文献标识码:A文章编号:1006.7108(2014)
2、07—074505摘要:目的联合甲状旁腺激素(rhPTH)和辛伐他汀(SIM)在体外对乳鼠颅盖骨成骨细胞分化及骨保护素(OPG)和核因子KB受体活化因子配体(RANKL)基因表达的影响。方法以乳鼠成骨细胞为体外试验模型,rhPTH1—34(10mol/L)联合不同浓度SIM(1O~、1O~、10mol/L)作用于体外培养的乳鼠成骨细胞,采用对硝基苯磷酸盐(PNPP)法测定碱性磷酸酶(ALP)活性;RT—PCR法测定OPG和RANKL基因的表达。结果rhPTH和SIM单独给药均可促进成骨细胞ALP活
3、性及OPG基因、降低RANKL基因表达(P<0.05);两者联合后与SIM单独作用组比较,ALP活性明显增加,并能协同促进OPG、降低RANKL基因表达(P<0.05)。结论rhPTH1-34和SIM联合应用对成骨细胞分化和代谢有协同作用。关键词:甲状旁腺激素;辛伐他汀;成骨细胞;碱性磷酸酶;骨保护素;核因子.cB受体活化因子配体EffectofparathyroidcombinedwithsimvastatinonthedifferentiatiOnofosteoblastsandthemRNA
4、expressionofOPGandRANKLLULeiyang,LIUBing,GAOFei,YANGJingDepartmentofEndocrinology,theFirstHospitalofShanxiMedicalUniversity,Taiyuan030001,ChinaCorrespondingauthor:GAOFei,Email:gaofxixi@126.comAbstract:ObjectiveToobservetheeffectofparathyroid(rhPTH1—34
5、)combinedwithsimvastatin(SIM)onthedifferentiationofosteoblastsandthemRNAexpressionofOPGandRANKLinvitro.MethodsTheneonatalratosteoblastswereculturedinvitro.Theosteoblastsweretreatedwith10一mol/LrhPTH1—34combinedwithdifferentconcentrationsofSIM(10~mol/L,
6、10。mol/L,and10~mol/L,respectively).TheactivityofALPwasassessedusingPNPPcolorimetricassay.ThemRNAexpressionofOPGandRANKLwasdetectedusingsemi—quantitiveRT—PCR.ResultsSingleuseofrhPTH1-34orSIMpromotedALPactivity,increasedtheexpressionofOPG,andreducedthee
7、xpressionofRANKL(P<0.05).ComparedwiththatinsingleSIMtreatmentgroup,theALPactivityinrhPTH1—34combinedwithSIMtreatmentgroupincreasedmoresignificantly,andtheexpressionofOPGwasalsopromoted,whiletheexpressionofRANKLwasdown—regulated(P<0.05).ConclusionrhPTH
8、1—34combinedwithSIMhasadditiveeffectonthedifferentiationandmetabolismofosteoblasts.Keywords:PTH;SIM;Osteoblast;ALP;OPG;RANKL骨质疏松症(Osteoporosis,OP)目前已成为全球汀(Simvastatin,SIM)属于3一羟基一3甲基戊二酰辅酶性的公共卫生问题之一,研究表明改造后的重组人A(HMG—COA)还原酶抑制剂,能减少胆固醇合成及甲状旁腺激素1—3
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