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eISSN: 1643-3750

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Pharmacokinetic and Pharmacodynamics of Self-Assembled Cubic Liquid Crystalline Nanoparticle Gel After Transdermal Administration

Na Zhu, Xiao-xiang Wu, Yong Tian, Jin-xiu Zhu, Jian-chun Li

(Department of Pharmacy, Bengbu Medical College, Bengbu, Anhui, China (mainland))

Med Sci Monit 2018; 24: LBR2330-2338

DOI: 10.12659/MSM.906140


BACKGROUND: The aim of this study was to assess the pharmacokinetics after transdermal administration by a novel skin microdialysis technology in rats. The guinea pig model was established by investigating the pharmacodynamics.
MATERIAL AND METHODS: Three different agents were given after hair removal, and the samples were extracted by microdialysis and detected by HPLC. Subcutaneous/plasma concentration-time curves of the 3 different agents were analyzed and the pharmacokinetic parameters were calculated. The SS-04B UV light therapy instrument was used in the modeling. Changes in melanin index and histopathology were observed with HE staining.
RESULTS: The increment and decrement results showed that the concentration had no significant effect on drug recovery both in vivo and in vitro. After the paeonol cubic liquid crystalline nanoparticles gel (PAE-LCNPs) was administered, the maximum peak time (tmax) of paeonol skin concentration appeared at 2.42±0.20 h, the maximum skin concentration Cmax was (926±105) ng/ml, and the area under the curve AUC0–8 was (8056±954) ng/h/ml. The tmax was shortened much more than in the other groups, and the performance of PAE-LCNPs targeting was good. Pharmacodynamic results showed that PAE-LCNPs can reduce melanocytes and reduce the melanin index, proving its utility in the treatment of melanin deposition.
CONCLUSIONS: The skin microdialysis study indicated PAE-LCNPs have good transdermal permeability and efficacy. Pharmacological experiments based on the study found that the topical pigmentation model of guinea pigs showed a better therapeutic effect.

This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
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