和厚樸酚環(huán)糊精包合物的制備及評(píng)價(jià)
本文選題:和厚樸酚 + 羥丙基-β-環(huán)糊精 ; 參考:《重慶醫(yī)科大學(xué)》2014年碩士論文
【摘要】:和厚樸酚(Honokiol, HNK)是從我國傳統(tǒng)中藥木蘭科植物厚樸(Magnolia officinalis Rehd. et Wils)或凹葉厚樸(Magnolia officinalisRehd. et Wils. var. biloba Rehd. et Wils)的干燥干皮、根皮及枝皮中提取的具有生物活性的化學(xué)物質(zhì)。研究發(fā)現(xiàn)和厚樸酚具有明顯的抗腫瘤、抗炎、抗氧化、抗輻射及心血管保護(hù)作用等藥理活性。和厚樸酚易氧化,在水中幾乎不溶,生物利用度低的特點(diǎn)限制了其進(jìn)一步研究和應(yīng)用。本文采用環(huán)糊精包合技術(shù),率先采用羥丙基-β-環(huán)糊精(hydroxy-propyl-β-cyclodextrin, HPCD)和磺丁基-β-環(huán)糊精(sulfobutylether-β-cyclodextrin,SBECD)作為包合材料,利用溶液攪拌法制備和厚樸酚羥丙基-β-環(huán)糊精包合物(HNK-HPCD)與和厚樸酚磺丁基-β-環(huán)糊精包合物(HNK-SBECD),增加HNK的表觀溶解度,改善其生物利用度,為其進(jìn)一步研究及應(yīng)用奠定基礎(chǔ)。 本實(shí)驗(yàn)的主要內(nèi)容包括:1.建立HNK含量測定方法,考察HPCD對(duì)HNK的增溶情況;2.篩選HNK-HPCD包合物制備方法和工藝優(yōu)化;3. HNK-HPCD包合物驗(yàn)證及體外釋放行為研究;4. HNK-HPCD大鼠體內(nèi)藥動(dòng)學(xué)研究;5. HNK-SBECD制備工藝研究;6. HNK-SBECD包合物驗(yàn)證及體外釋放行為考察;7. HNK-SBECD大鼠體內(nèi)初步藥動(dòng)學(xué)研究。 建立HNK含量測定的紫外分光光度方法。采用相溶解度實(shí)驗(yàn),考察HPCD不同溫度下,對(duì)HNK的增溶情況。從溶液攪拌法、超聲法和研磨法中篩選制備HNK-HPCD包合物的方法,考慮到超聲法和研磨法不利于工業(yè)化生產(chǎn),,而溶液攪拌法的穩(wěn)定性和可重復(fù)性較好,最終選擇溶液攪拌法制備包合物。通過單因素考察和三因素五水平星點(diǎn)設(shè)計(jì)-效應(yīng)面法對(duì)制備工藝進(jìn)行優(yōu)化。 采用溶液攪拌法制備HNK-HPCD和HNK-SBECD包合物溶液,通過冷凍干燥,獲得固態(tài)的包合物。通過X-射線衍射法(XPD)、差示掃描量熱法(DSC)和紅外光譜法(FT-IR)等方法對(duì)包合物進(jìn)行驗(yàn)證;采用透析袋法考察了HNK-HPCD與HNK-SBECD的體外釋藥行為。 本文以SD大鼠為實(shí)驗(yàn)動(dòng)物,考察HNK-HPCD與HNK-SEBCD在大鼠體內(nèi)的藥動(dòng)學(xué)行為。溶解攪拌法制備HNK-HPCD和HNK-SBECD包合物溶液,分別灌胃給予HNK-HPCD和HNK-SBECD包合物溶液,考察其藥動(dòng)學(xué);同時(shí)制備HNK的混懸劑(0.5%CMC-Na),灌胃給藥,作為包合物溶液的對(duì)照;本研究還考察了HNK-HPCD和HNK-SBECD包合物溶液尾靜脈注射給藥的藥動(dòng)學(xué)行為。建立了以吳茱萸堿為內(nèi)標(biāo)的反相高效液相色譜測定HNK血藥濃度的方法,采用非房室模型(統(tǒng)計(jì)矩)對(duì)血藥濃度時(shí)間數(shù)據(jù)進(jìn)行分析。結(jié)果表明,將HNK制備成HNK-HPCD和HNK-SBECD后,與口服HNK混懸劑相比,相對(duì)生物利用度分別是HNK混懸劑的2.13倍和1.58倍。 系列實(shí)驗(yàn)表明,本文選擇的制備方法簡單方便有效。將HNK制備成HNK-HPCD和HNK-SBECD后,HNK的表觀溶解度顯著提高,同時(shí)也改善了其相對(duì)生物利用度。
[Abstract]:Magnolia officinalis Rehd. et Wils or Magnolia officinalis Rehd. et Wils. Et Wils. var. biloba Rehd. et Wils are bioactive chemicals extracted from dried bark, root skin and branch bark of Magnolia officinalis Rehd. et Wils. It was found that honokiol had obvious pharmacological activities such as anti-tumor, anti-inflammatory, anti-oxidation, anti-radiation and cardiovascular protection. And honokiol is easy to be oxidized, almost insoluble in water, and its low bioavailability limits its further research and application. The inclusion materials of hydroxy-propyl- 尾 -cyclodextrin (HPCD) and sulfobutylether- 尾 -cyclodextrin (SBECD) were used as inclusion materials. HNK-HPCD and honokiol sulfoxypropyl- 尾 -cyclodextrin inclusion complex (HNK-SBECD) were prepared by solution stirring method. The apparent solubility of honokiol hydroxypropyl 尾 -cyclodextrin (HNK-SBECD) was increased and its bioavailability was improved. The main contents of this experiment include: 1. To establish a method to determine the content of HNK and to investigate the solubilization of HNK by HPCD. The preparation method and process optimization of HNK-HPCD inclusion complex were selected. Identification of HNK-HPCD inclusion complex and in vitro release behavior of HNK-HPCD Pharmacokinetics of HNK-HPCD rats in vivo. Study on preparation process of HNK-SBECD. Identification of HNK-SBECD inclusion complex and in vitro release behavior of HNK-SBECD. Preliminary pharmacokinetic study of HNK-SBECD rats in vivo. A UV spectrophotometric method for the determination of HNK was established. The solubilization of HNK at different temperatures of HPCD was investigated by phase solubility experiment. The method of preparing HNK-HPCD inclusion compound was screened from solution stirring method, ultrasonic method and grinding method. Considering that ultrasonic method and grinding method are not good for industrial production, the solution stirring method has better stability and repeatability. Finally, the inclusion compound was prepared by solution stirring method. The preparation process was optimized by single factor investigation and three factor and five level star design-effect surface method. The solution of HNK-HPCD and HNK-SBECD inclusion compound was prepared by solution agitation, and the solid inclusion compound was obtained by freeze-drying. The inclusion complex was verified by X-ray diffraction (XPD), differential scanning calorimetry (DSC) and infrared spectroscopy (FT-IR), and the in vitro release behavior of HNK-HPCD and HNK-SBECD was investigated by dialysis bag method. The pharmacokinetics of HNK-HPCD and HNK-SEBCD in SD rats was investigated. HNK-HPCD and HNK-SBECD inclusion complex solution were prepared by dissolving and stirring method. HNK-HPCD and HNK-SBECD inclusion complex solution were administered intragastrically to investigate the pharmacokinetics of HNK-HPCD and HNK-SBECD inclusion complex solution. The pharmacokinetics of HNK-HPCD and HNK-SBECD inclusion complex solution was also investigated. A method for determination of HNK concentration by reversed-phase high performance liquid chromatography (RP-HPLC) with rutaecarpine as internal standard was established. The time data of blood drug concentration were analyzed by non-atrioventricular model (statistical moments). The results showed that the relative bioavailability of HNK prepared into HNK-HPCD and HNK-SBECD was 2.13 and 1.58 times higher than that of oral HNK suspension respectively. A series of experiments show that the method chosen in this paper is simple, convenient and effective. The apparent solubility and relative bioavailability of HNK in HNK-HPCD and HNK-SBECD were significantly improved after the preparation of HNK into HNK-HPCD and HNK-SBECD.
【學(xué)位授予單位】:重慶醫(yī)科大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:R943
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