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Novel anti-inflammatory film as a delivery system for the external medication with bioactive phytochemical \Apocynin\
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Novel anti-inflammatory film as a delivery system for the external medication with bioactive phytochemical \Apocynin\
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Journal Article
Novel anti-inflammatory film as a delivery system for the external medication with bioactive phytochemical \Apocynin\
2018
Overview
Recently, Apocynin (APO) has emerged as a bioactive phytochemical with potent antioxidant and anti-inflammatory properties. No reports have been published so far concerning its topical application as a pharmaceutical dosage form for prospective use. To the best of our knowledge, this is the first study to fabricate novel anti-inflammatory film for external medication with APO.
APO film was prepared using casein (CAS) as a natural protein film former by solvent casting technique. The medicated film was extensively evaluated in terms of its various physicochemical characteristics, ex vivo skin permeation profile, stability, and finally in vivo anti-inflammatory activity on carrageenan-induced rat paw edema.
The film represented satisfactory mechanical properties along with good flexibility. Fourier transform-infrared spectroscopy, differential scanning calorimetry, and X-ray diffractometry revealed possible solubility of APO in the amorphous CAS and inter- and intramolecular hydrogen bonding between the film components. The ex vivo skin permeation results of the medicated film demonstrated non-Fickian diffusion mechanism of the permeated drug. Application of APO film to rat paw before carrageenan-induced paw edema or after induction disclosed eminent anti-inflammatory activity expressed by marked decrease in paw swelling (%) and increase in edema inhibition rate (%). In addition, histopathologic examination revealed a significant decrease in inflammatory scores. The immunohistochemical expression levels of both nuclear factor kappa B and cyclooxygenase-2 were significantly suppressed.
These results indicated that CAS film could be applied as a promising external delivery system for the anti-inflammatory APO.
Publisher
Dove Medical Press Limited,Taylor & Francis Ltd,Dove Press,Dove Medical Press
Subject
Acetophenones - administration & dosage
/ Acetophenones - pharmacology
/ Animals
/ Anti-Inflammatory Agents, Non-Steroidal - administration & dosage
/ Anti-Inflammatory Agents, Non-Steroidal - pharmacology
/ Apocynin
/ Casein
/ Differential scanning calorimetry
/ Dose-Response Relationship, Drug
/ Drugs
/ Edema
/ Glycerol
/ Hydrogen
/ Kinetics
/ Male
/ Nonsteroidal anti-inflammatory drugs
/ Phytochemicals - administration & dosage
/ Phytochemicals - pharmacology
/ Proteins
/ Rats
/ Skin
