期刊鉴别 论文检测 免费论文 特惠期刊 学术答疑 发表流程

雷公藤红素醇质体的制备及体外透皮性能研究(3)

时间:2015-10-09 10:54 文章来源:http://www.lunwenbuluo.com 作者:吴军, 吴明, 刘荻, 点击次数:


  普通脂质体携带的药物只能到达表皮, 无法穿透皮肤屏障, 因此其常常被用于局部用药或化妆品的载体[12]。与普通脂质体相比较, 醇质体能穿透皮肤屏障, 使得药物的透皮速率增加。醇质体的透皮机理主要包括2 种: 一是与角质层脂质融合而释放药物; 二是醇质体膜的流动性和柔性使得醇质体易发生变形, 并通过角质层间隙到达皮肤深层。本研究结果显示: Cel 醇质体的累积渗透量和渗透速率均较空白醇质体/Cel 溶液及Cel 溶液高, 表明醇质体对Cel 的体外透皮有促进作用; 同时由累积渗透曲线可知, Cel 醇质体的累积渗透量在24 h 后仍表现出较强的增加趋势, 表明Cel 醇质体被用于经皮给药时具有缓释作用。
  本研究通过考察磷脂含量、乙醇体积分数、胆
  试验号p包封率/%
  1 80.0
  2 80.5
  3 81.2
  d 粒径/nm
  394.9
  404.0
  404.7
  VZeta /mV
  -2.55
  -3.15
  -2.55
  IPDI
  0.186
  0.229
  0.215
  表4 Cel 醇质体粒径、PDI、电位和包封率
  Table 4 The particle size, PDI, zeta potential andencapsulation efficiency of celastrol ethosomest /min
  组别
  Cel 溶液
  空白醇质体/Cel 溶液
  Cel 醇质体
  累积渗透方程
  Q=0.439 9 t-2.229
  Q=1.090 1 t-7.068
  Q=1.640 9 t-9.154 5
  J / (μg·cm-2·h-1)
  0.439 9
  1.090 1
  1.640 9
  r
  0.990 3
  0.956 1
  0.965 1
  表5 Cel 醇质体、空白醇质体/Cel 溶液及Cel 溶液的体外渗透比较
  Table 5 Comparison of transdermal permeation property invitro between celastrol ethosomes, blank ethosomes /celestrol solution and celestrol solution广州中医药大学学报2015 年第32 卷
  Cumulative amount permeated(μg/cm2)
  932
  Study on Preparation of Celastrol Ethosome and Its Skin PenetrationProperties in Vitro
  WU Jun, WU Ming, LIU Di, MA Zhuo
  (Hubei University of Technology, Wuhan 430068 Hubei, China)Abstract: Objective To prepare celastrol ethosomes and to observe the permeability characteristics of theethosomes which act as the transdermal delivery carriers of celastrol in vitro. Methods Celastrol ethosomes wereprepared by ethanol injection method, and then the encapsulation efficiency, particle size, polydispersity index(PDI) and zeta potential of the ethosomes were analyzed. TP2A intelligent percutaneous penetration instrumentwas used to compare the skin penetration properties of celastrol ethosomes, celastrol solution and the mixture ofblank ethosomes with celastrol solution. Results The prepared celastrol ethosomes were spherical, and theaverage particle size was (401.3 ± 5.5) nm, PDI was 0.21± 0.02, steady zeta potential was (-2.75 ± 0.1) mV,and average encapsulation efficiency was (80.6 ± 0.7) %. The amount of accumulative penetration of celastrolethosomes at 48 h was 76.86 μg·cm -2 and the permeation rate was 1.640 9 μg·cm -2·h -1, which weresignificantly higher than the celastrol solution and the mixture of blank ethosomes with celastrol solution.
  Conclusion The prepared ethosomes have high encapsulation efficiency, uniform particle size and stablequality, and are beneficial to the transdermal absorption of celastrol.
  Key words: Celastrol/production & preparation; Ethosomes/ultrastructure;Encapsulation efficiency; Percutaneous penetration in vitro;Disease models, animal; Mice
  固醇含量及Cel 含量对醇质体稳定性及包封率的影响, 以“正交设计” 筛选出了最优处方; 并通过比较Cel 醇质体、空白醇质体/Cel 溶液及Cel 溶液体外累积渗透量的差异, 表明醇质体有利于Cel 的渗透, 为Cel 的临床用药新剂型提供了相关依据及参考。
  参考文献:
  [1] Guo Y Q, Li X, Wang J H, et al. A new alkaloid from the fruitsof Celastrus orbiculatus[J]. Fitoterapia, 2005, 76 (2): 273.
  [2] Allion A C, Cacabelos R, Lombardi V R, et al. Celastrol, apotent antioxidant and anti -inflammatory drug, as a possibletreatment for Alzheimer’s disease[J]. Prog Neuropsycho-pharmacolBiol Psychiatry, 2001, 25 (7): 1341.
  [3] Kim D H, Shin E K, Kim Y H, et al. Suppression of inflammatoryresponses by celastrol, a quinone methide triterpenoid isolatedfrom Celastrus regelii[J]. Eur J Clin Invest, 2009, 39 (9): 819.
  [ 4] Chen Y, Wang J, Yuan L, et al. Interaction of the maincomponents from the traditional Chinese drug pair Chaihu -Shaoyao based on rat intestinal absorption[J]. Molecules, 2011, 16(11): 9600.
  [5] Godin B, Touitou E, Rubinstein E, et al. A new approach fortreatment of deep skin infections by an ethosomal antibioticpreparation: an in vivo study[J]. Journal of AntimicrobialChemotherapy, 2005, 55 (6): 989.
  [6] 杨羽行, 刘小平. 美洛昔康醇质体凝胶的研制[J]. 中国医药导报, 2011, 35 (8): 78.
  [ 7] Fry D W, White J C, Goldman I D. Rapid secretion of lowmolecular weight solutes from liposomes without dilution[J]. AnalBiochem, 1978, 90 (2): 809.
  [8] Touitou E, Dayan N, Bergelson L, et al. Ethosomes-novel vesicularcarriers for enhanced delivery: characterization and skinpenetration properties[J]. J Control Release, 2000, 65 (3): 403.
  [9] 罗丽萍, 王军, 何文. 酮洛芬醇质体体外经皮渗透研究[J]. 中国药师, 2012, 15 (9): 1225.
  [10] Li X, Ruan G R, Lu W L, et al. A novel stealth liposomaltopoteean with amlodipine: Apoptotic effect is associated withdeletion of intracellular Ca2 + by amlodipine thus leading to anenhanced antitumor activity in leukemia[J]. Journal of ControlledRelease, 2006, 112 (2): 186.
  [11] 祝伟伟, 翟光喜, 赵军. 醇质体的研究进展[J]. 食品与药品,2007, 9 (1): 46.
  [12] Lopez-Pinto J M, Gonzalez-Rodrigez M L, Rabasco A M. Effect ofcholesterol and ethanol on dermal delivery from DPPC liposomes[J]. International Journal of Pharmaceutics, 2005, 298 (1): 1.

  •   论文部落提供核心期刊、国家级期刊、省级期刊、SCI期刊和EI期刊等咨询服务。
  •   论文部落拥有一支经验丰富、高端专业的编辑团队,可帮助您指导各领域学术文章,您只需提出详细的论文写作要求和相关资料。
  •  
  •   论文投稿客服QQ: 论文投稿2863358778 论文投稿2316118108
  •  
  •   论文投稿电话:15380085870
  •  
  •   论文投稿邮箱:lunwenbuluo@126.com

相关内容

联系方式

  • 论文投稿客服QQ: 论文投稿2863358778
  • 论文投稿客服QQ: 论文投稿2316118108
  • 论文投稿电话:15380085870
  • 论文投稿邮箱:lunwenbuluo@126.com

热门排行

 
QQ在线咨询
咨询热线:
15380085870
微信号咨询:
lunwenbuluoli