CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats

Magnolol, which is a CYP3A substrate, is a well-known agent that can facilitate neuroprotection and reduce ischemic brain damage. However, a well-controlled release formulation is needed for the effective delivery of magnolol due to its poor water solubility. In this study, we have developed a formu...

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Main Authors: Jiun-Wen Guo, Chih-Cheng Chien, Jiann-Hwa Chen
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Pharmaceutics
Subjects:
Online Access:https://www.mdpi.com/1999-4923/12/8/737
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author Jiun-Wen Guo
Chih-Cheng Chien
Jiann-Hwa Chen
author_facet Jiun-Wen Guo
Chih-Cheng Chien
Jiann-Hwa Chen
author_sort Jiun-Wen Guo
collection DOAJ
description Magnolol, which is a CYP3A substrate, is a well-known agent that can facilitate neuroprotection and reduce ischemic brain damage. However, a well-controlled release formulation is needed for the effective delivery of magnolol due to its poor water solubility. In this study, we have developed a formulation for a CYP3A-excipient microemulsion, which can be administrated intraperitoneally to increase the solubility and bioavailability of magnolol and increase its neuroprotective effect against ischemic brain injury. The results showed a significant improvement in the area under the plotted curve of drug concentration versus time curve (AUC0–t) and mean residence time (MRT) of magnolol in microemulsion compared to when it was dissolved in dimethyl sulfoxide (DMSO). Both magnolol in DMSO and microemulsion, administrated after the onset of ischemia, showed a reduced visual brain infarct size. As such, this demonstrates a therapeutic effect on ischemic brain injury caused by occlusion, however it is important to note that a pharmacological effect cannot be concluded by this study. Ultimately, our study suggests that the excipient inhibitor-based microemulsion formulation could be a promising concept for the substrate drugs of CYP3A.
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spelling doaj.art-d897fb2df9cf4b10a2fa9273cec541502023-11-20T09:11:53ZengMDPI AGPharmaceutics1999-49232020-08-0112873710.3390/pharmaceutics12080737CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke RatsJiun-Wen Guo0Chih-Cheng Chien1Jiann-Hwa Chen2Department of Medical Research, Cathay General Hospital, Taipei 10630, TaiwanDepartment of Anesthesiology, Cathay General Hospital, Taipei 10630, TaiwanSchool of Medicine, College of Medicine, Fu Jen Catholic University, New Taipei City 24205, TaiwanMagnolol, which is a CYP3A substrate, is a well-known agent that can facilitate neuroprotection and reduce ischemic brain damage. However, a well-controlled release formulation is needed for the effective delivery of magnolol due to its poor water solubility. In this study, we have developed a formulation for a CYP3A-excipient microemulsion, which can be administrated intraperitoneally to increase the solubility and bioavailability of magnolol and increase its neuroprotective effect against ischemic brain injury. The results showed a significant improvement in the area under the plotted curve of drug concentration versus time curve (AUC0–t) and mean residence time (MRT) of magnolol in microemulsion compared to when it was dissolved in dimethyl sulfoxide (DMSO). Both magnolol in DMSO and microemulsion, administrated after the onset of ischemia, showed a reduced visual brain infarct size. As such, this demonstrates a therapeutic effect on ischemic brain injury caused by occlusion, however it is important to note that a pharmacological effect cannot be concluded by this study. Ultimately, our study suggests that the excipient inhibitor-based microemulsion formulation could be a promising concept for the substrate drugs of CYP3A.https://www.mdpi.com/1999-4923/12/8/737magnololmicroemulsionneuroprotection effectbrain ischemicCYP3A
spellingShingle Jiun-Wen Guo
Chih-Cheng Chien
Jiann-Hwa Chen
CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats
Pharmaceutics
magnolol
microemulsion
neuroprotection effect
brain ischemic
CYP3A
title CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats
title_full CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats
title_fullStr CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats
title_full_unstemmed CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats
title_short CYP3A Excipient-Based Microemulsion Prolongs the Effect of Magnolol on Ischemia Stroke Rats
title_sort cyp3a excipient based microemulsion prolongs the effect of magnolol on ischemia stroke rats
topic magnolol
microemulsion
neuroprotection effect
brain ischemic
CYP3A
url https://www.mdpi.com/1999-4923/12/8/737
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AT chihchengchien cyp3aexcipientbasedmicroemulsionprolongstheeffectofmagnololonischemiastrokerats
AT jiannhwachen cyp3aexcipientbasedmicroemulsionprolongstheeffectofmagnololonischemiastrokerats