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1、藥物分析雜志ChinJPhanuAnal2013,33(10)-A-活性分析·代謝分析★黃連配伍肉桂對(duì)小檗堿大鼠肝代謝的影響及其機(jī)制探討葉靜,張瑞,黃果,魏寶紅,楊麗娟,張玉杰(北京中醫(yī)藥大學(xué)中藥學(xué)院,北京100102)摘要目的:考察大鼠經(jīng)口給予黃連配伍肉桂的制劑后對(duì)小檗堿肝臟代謝的影響及其肝藥酶的變化,探討黃連一肉桂藥對(duì)的配伍機(jī)制。方法:以HPIC法測(cè)定大鼠肝微粒體溫孵體系中小檗堿的含量,考察小檗堿在肉桂、黃連和黃連一肉桂(1)誘導(dǎo)組及溶媒對(duì)照組大鼠肝微粒體系中的代謝變化;采用Nash顯色,分光光
2、度法測(cè)定空白組、黃連組、肉桂組和黃連肉桂配伍(10:1)組大鼠肝微粒體中紅霉素Ⅳ一脫甲基酶(ERD)活性。結(jié)果:與空白對(duì)照組相比,小檗堿在各給藥組大鼠肝微粒體溫孵液中的代謝速率均有顯著下降(P<0.001),各組代謝速率從小到大的順序?yàn)辄S連一肉桂配伍組,肉桂組,黃連組,空白對(duì)照組。與空白組比較,肉桂組和黃連一肉桂配伍組ERD活性均明顯受到抑制(P<0.01);黃連組對(duì)ERD活性作用不明顯(P>0.05)。結(jié)論:黃連一肉桂配伍合用通過(guò)抑制大鼠肝藥酶ERD活性降低黃連主要有效成分小檗堿的肝臟代謝,這可能
3、是黃連一肉桂配伍相互作用的重要機(jī)制。關(guān)鍵詞:黃連;肉桂;肝代謝;CYt3A4;小檗堿中圖分類號(hào):R917文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):0254—1793(2013)10—1702—04StudyontheefectofcoptiscoadministratedwithcassiaonlivermetabolicactivitiesofberberineinratsanditsmechanismYEJing,ZHANGRui,HUANGGuo,WEIBao—hong,YANGLi—jHall,ZHANGYu
4、—jie(SchoolofChinesePharmacy,BeijingUniversityofTraditionalChineseMedicine,Beijing100102,China)Abstract0bjective:Toclarifytheimpactofthecompatibilityofcoptisandcassiaonthelivermetabolismofber—berineandchangesofhepaticenzymes,andtoexplorethemetabolicmec
5、hanismofthiscompatibility.Methods:RP—HPLCmethodwasappliedtodeterminethecontentofberberineinratlivermicrosomalincubationsystemandinvestigatethemetaboticchangesofberberineinratlivermicrosomalsystemsincoptisgroup,cassiagroup,coptis—cassia(10:1)inductiongr
6、oup,andsolventcontrolgroup.Theactivityoferythromycin—N—demethy
7、ase(ERD)ineachgroupofratlivermierosomeswasdeterminedusingspectrophotometryandNashcoloration.Results:Comparedwithblankcontro1group,metabolicratesofberberineinalltreatmentgroupsweresignifican
8、tlylowered(P<0.001),andtheorderfromlowtohighwascoptis—cassia,cassia,coptis,blankgroup.Comparedwithblackgroup,cassiaandcoptis—cassiagroupsshowedsignificantinhibitionfortheERDactivity(P<0.01),whiletheeffectontheERDactivityincoptisgroupwasnotsignificant(P
9、>0.05).Conclusion:Thelivermetabolismofberberineincoptissignificantlydecreasesincompatibilityofcoptis—cassia,whichmayresultfrominhibitingratlivermicrosomalmetabolicactivity.Fhiscanbeonesignificantmechanismofthiscompatibility.Keywords:cop