载拉西地平的尼奥斯omal 凝胶透皮给药的制剂及优化:体外特性及体内活性。

Formulation and optimization of lacidipine loaded niosomal gel for transdermal delivery: In-vitro characterization and in-vivo activity.

机构信息

Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi, India.

Departments of Pharmaceutics, College of Pharmacy, Al-Jouf University, Al-Jouf, Saudi Arabia.

出版信息

Biomed Pharmacother. 2017 Sep;93:255-266. doi: 10.1016/j.biopha.2017.06.043. Epub 2017 Jul 18.

Abstract

The aim of the present research work is to formulate lacidipine (LAC) loaded niosomes formulation for the management of hypertension by thin film hydration technique. The developed formulations were statistically optimized by four factors, three levels Box-Behnken design and were evaluated for vesicle size, entrapment efficiency, and flux. The optimized LAC niosomes was further evaluated for permeation depth by confocal laser scanning microscopy (CLSM) and converted to gel formulation. Further, the optimized LAC niosomes gel was evaluated for ex-vivo permeation study, skin irritation study, stability study and pharmacodynamics study. The optimized LAC niosomes formulation showed vesicle size, entrapment efficiency and flux value of 676.98±10.92nm, 82.77±4.34% and 38.43±2.43μg/cm/h respectively, with spherical morphology. The comparative CLSM study showed that optimized LAC niosomes formulation has shown maximum permeation (70.75μm) as compare to LAC liposomes formulation (58.26μm). The optimized LAC niosomes gel showed skin permeation enhancement of 2.15 times as compare to control gel. Furthermore, in vivo antihypertensive activity showed significantly higher (p<0.001) reduction in blood pressure compared to oral suspension. Indeed, it was found that niosomal vesicles represented to be an efficient nano vesicular carrier for transdermal delivery of lacidipine.

摘要

本研究工作的目的是通过薄膜水化技术制备拉西地平(LAC)载药脂质体制剂,以治疗高血压。采用四因素三水平 Box-Behnken 设计对所开发的制剂进行统计学优化,并对其进行囊泡粒径、包封率和通量评价。将优化后的 LAC 脂质体进一步通过共聚焦激光扫描显微镜(CLSM)评价渗透深度,并转化为凝胶制剂。进一步对优化后的 LAC 脂质体凝胶进行体外渗透研究、皮肤刺激性研究、稳定性研究和药效学研究。优化后的 LAC 脂质体制剂的囊泡粒径、包封率和通量分别为 676.98±10.92nm、82.77±4.34%和 38.43±2.43μg/cm/h,呈球形形态。比较 CLSM 研究表明,与 LAC 脂质体制剂(58.26μm)相比,优化的 LAC 脂质体制剂显示出最大的渗透(70.75μm)。优化的 LAC 脂质体凝胶的皮肤渗透增强作用是对照凝胶的 2.15 倍。此外,体内降压活性研究表明,与口服混悬剂相比,LAC 载药脂质体凝胶能显著降低血压(p<0.001)。事实上,发现脂质体囊泡是一种有效的经皮传递拉西地平的纳米囊泡载体。

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