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Article Publish Status: FREE
Abstract Title:

Enhancement in Site-Specific Delivery of Carvacrol against Methicillin ResistantInduced Skin Infections Using Enzyme Responsive Nanoparticles: A Proof of Concept Study.

Abstract Source:

Pharmaceutics. 2019 Nov 13 ;11(11). Epub 2019 Nov 13. PMID: 31766227

Abstract Author(s):

Maria Mir, Naveed Ahmed, Andi Dian Permana, Aoife Maria Rodgers, Ryan F Donnelly, Asim Ur Rehman

Article Affiliation:

Maria Mir

Abstract:

Methicillin resistant(MRSA) induced skin infections have become a challenging problem due to the escalating antibiotic resistance. Carvacrol (CAR) has been reported to be effective against MRSA. However, due to its characteristics, CAR exhibits low skin retention. In this study, CAR was formulated into site-specific nanoparticle (NPs) delivery system using poly(ε-caprolactone) (PCL), following incorporation into a hydrogel matrix to facilitate dermal delivery. The release study exhibited significantly higher release of CAR from PCL NPs in the presence of bacterial lipase, highlighting its potential for differential delivery. Moreover, encapsulation of CARin PCL NPs resulted in a two-fold increase in its anti-MRSA activity. Dermatokinetic studies revealed that the NPs loaded hydrogel was able to enhance skin retention of CAR after 24 h (83.29 ± 3.15%), compared to free CAR-loaded hydrogel (0.85 ± 0.14%). Importantly, this novel approach exhibitedeffective antimicrobial activity in an ex-vivo skin infection model. Hence, these findings have proven the concept that the loading of CAR into a responsive NPs system can lead to sustained antimicrobial effect at the desired site, and may provide a novel effective approach for treatment of MRSA induced skin infections. However, further studies must be conducted to investigate in-vivo efficacy of the developed system in an appropriate infection model.

Study Type : In Vitro Study

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Sayer Ji
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