交泰丸在正常和PCPA失眠大鼠的药动学和PK-PD结合模型研究讲课讲稿.docx
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1、此文档收集于网络,如有侵权请联系网站删除研究生优秀毕业论文此文档仅供学习和交流pLmin的速度灌流。以给药后为0点,每30 min收集1管透析液,其中30肛L测 定神经递质含量,另30止测定交泰丸中生物碱,持续10 h,将样品放入LCMSMS 系统进行测定。结果1交泰丸主要活性成分小檗碱、巴马汀、黄连碱、表小檗碱和药根碱在血浆的 含量测定成功建立了同时测定大鼠血浆中交泰丸主要活性成分小檗碱、巴马汀、黄连碱、 表小檗碱和药根碱的分析方法。该方法简单、灵敏、快捷,需要的血浆量少,分析时 间短,且方法学考察符合生物样品检测的要求,可为交泰丸的药动学研究提供可靠又 便捷的检测手段。2交泰丸单次和多次给
2、药后在正常和PCPA失眠模型大鼠的药动学研究 原小檗碱型生物碱在单次给药后正常大鼠体内的生物利用度较差,且达峰时问长,多次给药交泰丸后原小檗碱型生物碱的药动学参数都与单次给药组具有显著性差 异,这提示多次给药有可能增加原小檗碱型生物碱在体内的吸收,导致药物在体内的 累积。原小檗碱型生物碱在失眠大鼠体内的吸收比正常组好,生物利用度大大增加, 这有利于其在疾病体内迅速达到有效治疗浓度,从而发挥其药理作用。3交泰丸主要活性成分小檗碱、巴马汀、黄连碱、表小檗碱和药根碱在脑微透析液中的含量测定成功建立了同时测定大鼠脑微透析液中交泰丸主要活性成分小檗碱、巴马汀、黄 连碱、表小檗碱和药根碱的分析方法,该方法
3、在原有方法的基础上,优化了色谱条件, 达到了更低的定量下限,缩短了分析时间,并且简化了样品处理过程,使得方法操作 简便有效。专属性、准确度、精密度、线性、稳定性、交互效应和柱后效应考察结果 表明该方法符合生物样品检测要求。4交泰丸主要活性成分在正常和失眠模型大鼠的PKPD结合模型研究正常组与模型组的脑内药动学行为具有显著性差异,模型组五个原小檗碱型生物 碱的生物利用度高于正常组,此外,对比血浆药动学的研究结果,五个原小檗碱型生物碱的脑部药动学与血浆药动学行为显著不同(主要表现为C。、T一和AUC)。说明五 个原小檗碱型生物碱能透过血脑屏障,直接作用于海马体。模型组中的原小檗碱型生物碱多巴胺的k
4、。均较正常组明显提高,而模型组中原小檗碱型生物碱的EC。较正常 组为小,提示交泰丸中主要活性成分在模型大鼠体内DA药效较正常大鼠增强。结论交泰丸中原小檗碱型生物碱在正常和模型组大鼠的血浆、脑局部的药动学行为都 具有显著性差异,无论是血浆还是脑局部药动学,模型组大鼠的生物利用度大于正常 组,且血浆药动学中,多次给药比单次给药的生物利用度更高。交泰丸主要活性成分 的脑部药动学与血浆药动学行为显著不同,表明五个原小檗碱型生物碱能透过血脑屏障,直接作用于海马体。交泰丸中主要活性成分在模型大鼠体内多巴胺药效较正常大 鼠增强,且其在失眠大鼠体内更快达到效应部位。交泰丸治疗心肾不交失眠的作用机 制可能是通过
5、对多巴胺的影响,从而使其发挥镇静催眠的作用。而对于其他六个神经 递质的影响较为复杂,这与交泰丸复杂的药动学行为有关。 关键词:交泰丸;原小檗碱型生物碱;失眠模型;药动学;PKPD模型IStudy on Pharmacok i net i CS and PKPD Comb i nat i on Mode I i ng ofJ i ao-Ta i_wan i n Norma l andI nsomn i c RatsSpecialty:Pharmaceutical analysis Author:He W己iTutor:Liao QiongfengAbstractobjectiveJiaoTai-
6、Wan(JTW)was a famous prescription which has been used for centuries to treat insomniaProtoberberinetype alkaloids were the main active ingedients in JTWThe purpose of our study was to explore pharmacokinetics and PKPD combination modeling of berberine,palmatine,coptisine,epiberberine and jatrorrhizi
7、ne between normal and insomnic animals by brain microdialysisMethods1Simultaneous quantification of berberine,palmatine,copfisine,epiberberine andjatrorrhizine in rat plasma by UPLCMSMSThe separation of the five compounds was carried out on a C ls column using a mobile phase consisting of acetonitri
8、le and water(containing 5 mmoFL ammonium acetate adjusted to pH 50 with formic acid)The detection was performed by multiple reactionmonitoring mode via electrospray ionization source operating in the positive ionizationmode2Pharmacokinetics study of five protoberberinetype alkaloids in normal andins
9、omnie rats after single and multiple oral administration of Jiao-Tai-WanThe insomnic rats were intraperitoneal injection of onedose para-chlorophenylalanine acid(PCPA)to induce insomnic modelQuantifucation of five protoberberine-type alkaloids in rat plasma was achieved by using a rapid LC-MSMS metl
10、lodPlasma samples were constructed pharmacokinetic profiles using plotting drug concentration versus time and estimate pharmacokinetic parametersThe SPSS 1 70 was used for comparisons by an unpaired student。S t test3Simultaneous determination of berberine,coptisine,epiberberine,palmatine and jatrorr
11、hizine in rat microdialysate by HPLC-MSMSThe five protoberberinetype alkaloids were separated on a BDS Hypersil Cls column(21 x50 rnnl id,24 pm,Thermo Scientific)with a Phenomenex Cls guard column(34ITUTI id、The elution gradient for LCMSMS analysis consisted of two solvent compositions:5 mmol ammoni
12、um acetate adjusted to pH 50(A)and acetonitrile 03) Gradient elution was carried out according to the following program:0-37 min, 75-25mobile phase A;3740 min,25mobile phase AAccuracy,precision, carryover,cross talk,matrix effects and recovery of five analytes were all satisfactory4PK-PD combination
13、 modeling of five protoberberine-type alkaloids in normal andinsomnic rats after administration of JiaoTaiW抽Heads of the rats were shaved before placing them in a stereotaxic apparatusAn microdialysis guide cannula was stereotaxically inserted in a cranial burr hole made by a skull drill using the f
14、ollowing coordinatesin relation to the bregma(hippocampus:AP一52 I-nlTl,ML+45 1TUTI,DV-38 mm)The microdialysis guide cannula Was implanted to theratsthe denture base polymers type 11 was poured on the cathead and rivetsrhe rats ininsomnic and normal groups were given intraperitoneal injection of oned
15、ose PCPA(300 mgl(g)and the salTle volume of physiological saline,respectivelyJTW extracts were administered orally after a 2 h equailibration timeThe microdialysis samples werecollected every 30 min for 10 hThe collected samples were kept at一20。C and analyzed byLCMSMSResults1Simultaneous quantificat
16、ion of berberine,palmatine,coptisine,epiberberine andjatrorrhizine in rat plasma by HPLCMSMSIt iS successfully established simultaneous determination of berberine,palmatine,coptisine,epiberberine and jatrorrhizine in rat plasma by HPLCMSMS methodThe method is sensitive and high throughputAccuracy,pr
17、ecision,stability and exlmction recovery of five protoberberinetype alkaloids were all satisfactory2Pharmacokinetics study of five protoberberine-type alkaloids in normal andinsomnic rats after single and multiple oral administration of JiaoTaiWaIlThe five protoberberinetype alkaloids of singledose
18、normal groups had low bioavailability and delay of peak time,as well as slow absorptionEither normal groups or model groups,the pharmacokinetic behavior of multiple-dose had signicant differences comparing、i廿l the singledose;Both singledose and multipledose,the pharmacokineticbehavior of insomnic ra
19、ts had significant differences comparing the normal ratsMultipledosing may increase the bioavailability,which will improve the absorption of JTW iIlinsomnic rats and bring into active role in therapeutical effect3Simultaneous determination of berberine,palmatine,coptisine,epiberberine and jatrorrhiz
20、ine in rat rnierodialysate by HPLCMSMSVIt is successfully established simultaneous determination of berberine,palmatine, coptisine,epiberberine and jatrorrhizine in rat microdialysate by UPLCMSMS method The developed method was convenient,sensitive and specific,which needed nocomplicated sample proc
21、essing and small amount of dialysis samplesLinearity,accuracy,precision,stability,cross talk,carryover and matrix effect of five analytes were allsatisfactory4PKPD combination modeling of five protoberberinetype alkaloids in insomnic andnormal rats after administration of JiaoTaiWanInsomnic rats sho
22、wed the better absorption and bioavailability than normal ratsInaddition,the plasma pharmacokinetics was not similar to brain pharmacokineticsThe Tmax of normal rat was shorter than those in plasma pharmacokineticsProtoberberine-typealkaloids could have a direct action on neuron in the hippocampusTh
23、e Emax of DA of five protoberberinetype alkaloids in insomnic rats was higher than that in normal rats,and the ECe50 of five protoberberinetype alkaloids in insomnic rats Was lower than that in normal rats,which suggested that the DA efficacy of five protoberberine-type alkaloids in insomnicrats was
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