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D-α-Tocopherol polyethylene glycol succinate and stearoylmacrogol glycerides biomaterial based nanostructured mixed micelles as nose-to-brain targeting drug delivery system
Materials Technology ( IF 3.1 ) Pub Date : 2020-12-03 , DOI: 10.1080/10667857.2020.1854517
C. Bothiraja 1 , Kartiki Dhage 1 , Ravindra Kamble 1
Affiliation  

ABSTRACT

Olanzapine (OLA), a first atypical antipsychotic moleculethat experiences low brain permeability because of efflux by P-glycoproteins (Pgp) in the brain and extensive hepatic first-pass metabolism. The present investigation intended to design OLA-loaded mixed micelles (MM) and study their nose-to-brain targeting capability. OLA-MM was prepared by a mixture of d-α-tocopheryl polyethylene glycol 1000 succinate and gelucire®44/14 (stearoylmacrogol glycerides) (OLA-TPGL-MM) using the solvent evaporation technique. OLA-TPGL-MM was studied for various physiochemical properties, in-vitro release, ex-vivodrug permeation and in-vivo pharmacokinetic potential in male Wister rats as compared to OLA alone. Developed OLA-TPGL-MM showed particle size, negative zeta potential and entrapment efficiency of 125 nm, −5.97 mV and > 83%, respectively. OLA-TPGL-MM showed 2.12 and 1.85-fold improvement in in-vitro and ex-vivo OLA release and permeation. Substantially higher values for intranasal (i.n) OLA-TPGL-MM in drug targeting efficiency (265.36%), drug targeting index (1.82) and direct transport percentage (64.36%) indicating the potential of non-invasive OLA-loaded MM nose-to-brain targeting delivery system. TheTPGS and gelucire®44/14 based MM has a great potential for the safe and effective delivery of antipsychotic molecules in the treatment of CNS disorders.



中文翻译:

基于D-α-生育酚聚乙二醇琥珀酸酯和硬脂酰聚乙二醇甘油酯生物材料的纳米结构混合胶束作为鼻-脑靶向给药系统

摘要

奥氮平 (OLA) 是第一种非典型抗精神病药物分子,由于脑内 P-糖蛋白 (Pgp) 的流出和广泛的肝脏首过代谢而导致脑通透性降低。本研究旨在设计负载 OLA 的混合胶束 (MM) 并研究其鼻对脑靶向能力。OLA-MM 由 d-α-生育酚聚乙二醇 1000 琥珀酸酯和 gelucire® 44/14(硬脂酰聚乙二醇甘油酯) (OLA-TPGL-MM) 的混合物使用溶剂蒸发技术制备而成。与单独的 OLA 相比,研究了 OLA-TPGL-MM 在雄性 Wister 大鼠中的各种理化特性、体外释放、离体药物渗透和体内药代动力学潜力。开发的 OLA-TPGL-MM 的粒径、负 zeta 电位和截留效率分别为 125 nm、-5.97 mV 和 > 83%。OLA-TPGL-MM 在体外和离体 OLA 释放和渗透方面显示出 2.12 和 1.85 倍的改善。鼻内 (in) OLA-TPGL-MM 在药物靶向效率 (265.36%)、药物靶向指数 (1.82) 和直接转运百分比 (64.36%) 方面的值显着较高,表明非侵入性负载 OLA 的 MM 具有潜在的优势-脑靶向传递系统。基于 TPGS 和 gelucire®44/14 的 MM 在安全有效地递送抗精神病分子治疗 CNS 疾病方面具有巨大潜力。36%)表明非侵入性加载 OLA 的 MM 鼻对脑靶向递送系统的潜力。基于 TPGS 和 gelucire®44/14 的 MM 在安全有效地递送抗精神病分子治疗 CNS 疾病方面具有巨大潜力。36%)表明非侵入性加载 OLA 的 MM 鼻对脑靶向递送系统的潜力。基于 TPGS 和 gelucire®44/14 的 MM 在安全有效地递送抗精神病分子治疗 CNS 疾病方面具有巨大潜力。

更新日期:2020-12-03
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