alexa Self-assembled polymeric nanoparticles for percutaneous co-delivery of hydrocortisone hydroxytyrosol: an ex vivo and in vivo study using an NC Nga mouse model.
Biomedical Sciences

Biomedical Sciences

Journal of Biomolecular Research & Therapeutics

Author(s): Hussain Z, Katas H, Mohd Amin MC, Kumolosasi E, Buang F,

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Abstract In this study, hydroxytyrosol (HT; a potent antioxidant) was co-administered with hydrocortisone (HC) to mitigate the systemic adverse effects of the latter and to provide additional anti-inflammatory and antioxidant benefits in the treatment of atopic dermatitis (AD). The co-loaded nanoparticles (NPs) prepared had shown different particle sizes, zeta potentials, loading efficiencies, and morphology, when the pH of the chitosan solution was increased from 3.0 to 7.0. Ex vivo permeation data showed that the co-loaded NPs formulation significantly reduced the corresponding flux (17.04μg/cm(2)/h) and permeation coefficient (3.4×10(-3)cm/h) of HC across full-thickness NC/Nga mouse skin. In addition, the NPs formulation showed higher epidermal (1560±31μg/g of skin) and dermal (880±28μg/g of skin) accumulation of HC than did a commercial HC formulation. Moreover, an in vivo study using an NC/Nga mouse model revealed that compared to the other treatment groups, the group treated with the NPs formulation efficiently controlled transepidermal water loss (13±2g/m(2)/h), intensity of erythema (207±12), and dermatitis index (mild). In conclusion, NPs co-loaded with HC/HT is proposed as a promising system for the percutaneous co-delivery of anti-inflammatory and antioxidative agents in the treatment of AD. Copyright © 2013 Elsevier B.V. All rights reserved. This article was published in Int J Pharm and referenced in Journal of Biomolecular Research & Therapeutics

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