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PDD1滴丸的藥代動(dòng)力學(xué)研究

發(fā)布時(shí)間:2018-08-26 20:14
【摘要】:偽人參皂苷元DD1(Pseudoginsengenin DD1,簡(jiǎn)稱PDD1)結(jié)構(gòu)為(20S,24S)-達(dá)瑪-20,24-環(huán)氧-3β,12β,25-三醇,是以達(dá)瑪烷型原人參二醇(Protopanaxdiol,PPD1)為原料,經(jīng)側(cè)鏈氧化環(huán)合而成的奧克梯隆型新化合物。 課題組前期研究結(jié)果表明,PDD1合成工藝成熟、具有良好的抗心律失常作用,毒理學(xué)研究結(jié)果表明其毒性較低。在此基礎(chǔ)上,本課題組以PDD1為原料藥研制開(kāi)發(fā)具有抗心律失常作用的創(chuàng)新藥物PDD1滴丸(化藥1.1類),已完成了原料藥及制劑的生產(chǎn)工藝研究、質(zhì)量研究及質(zhì)量標(biāo)準(zhǔn)的制定和穩(wěn)定性研究,完成了主要藥效學(xué)研究以及毒理學(xué)研究。 血藥濃度-時(shí)間曲線(Pharmacokinetics,PK)是應(yīng)用動(dòng)力學(xué)原理與數(shù)學(xué)處理方法,,定量的描述藥物通過(guò)各種途徑進(jìn)入體內(nèi)的吸收(Absorption)、分布(Distribution)、代謝(Metabolism)和排泄(Excretion)過(guò)程的“量時(shí)”變化動(dòng)態(tài)規(guī)律[1],簡(jiǎn)稱ADME,在創(chuàng)新藥物研究與開(kāi)發(fā)過(guò)程中具有十分重要的意義[2]。 本研究首次建立了大鼠血漿、組織、排泄物中PDD1的UPLC-MS/MS定量分析方法,測(cè)定了大鼠經(jīng)灌胃給予PDD1滴丸和靜脈注射PDD1兩種給藥途徑大鼠生物樣品中PDD1的含量。闡明了PDD1在大鼠體內(nèi)的吸收、組織分布、排泄、血漿蛋白結(jié)合率和絕對(duì)生物利用度。建立了確定大鼠體內(nèi)代謝物的PDD1鑒定方法,揭示了PDD1在大鼠體內(nèi)的代謝規(guī)律。 本論文旨在研究PDD1在大鼠體內(nèi)的藥代動(dòng)力學(xué),進(jìn)一步闡明其有效性,安全性,為開(kāi)發(fā)以PDD1為原料的抗心律失常創(chuàng)新藥物提供科學(xué)依據(jù)。
[Abstract]:Pseudoginsenoside DD1 (PDD1 for short) is composed of (20Sn24S) -Dama -20C20-epoxy-3- 尾 -oxy-12 尾 -triol. It is a new compound of Oktiron type, which was synthesized by side chain oxidation cyclization with Protopanaxdiol,PPD1 as the raw material of pseudo-ginsenoside saponins. The results showed that the synthetic process of PDD1 was mature and had a good antiarrhythmic effect. The toxicological results showed that its toxicity was relatively low. On the basis of this, our group has developed PDD1 dropping pills with antiarrhythmic effect by using PDD1 as the raw material, and has completed the research on the production process of the raw material and its preparation. The main pharmacodynamic and toxicological studies have been completed. The plasma concentration-time curve (Pharmacokinetics,PK) is applied to the application of kinetic principles and mathematical treatment methods. Quantificationally describing the "volume time" dynamics of (Distribution), metabolism of (Metabolism) and excretion of (Excretion) through various ways, ADME, is of great significance in the research and development of innovative drugs [2]. In this study, a UPLC-MS/MS quantitative analysis method for PDD1 in plasma, tissue and excreta of rats was established for the first time. The content of PDD1 in biological samples of rats was determined by intragastric administration of PDD1 dropping pill and intravenous injection of PDD1. The absorption, tissue distribution, excretion, plasma protein binding rate and absolute bioavailability of PDD1 in rats were elucidated. A PDD1 method for identifying metabolites in rats was established, and the metabolic law of PDD1 in rats was revealed. The purpose of this paper is to study the pharmacokinetics of PDD1 in rats, to further clarify its efficacy and safety, and to provide a scientific basis for the development of novel antiarrhythmic drugs based on PDD1.
【學(xué)位授予單位】:吉林大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2015
【分類號(hào)】:R96

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