Journal
JOURNAL OF PHARMACEUTICAL SCIENCES
Volume 106, Issue 10, Pages 3050-3065Publisher
WILEY
DOI: 10.1016/j.xphs.2017.05.026
Keywords
ubidecarenone; cubosome; doxorubicin; Taguchi orthogonal array design; response surface methodology
Funding
- University Grants Commission, India [UGC-2012864]
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Present work aims to optimize and characterize orally administered, ubidecarenone (UDC)-loaded glycerylmonooleate-based cubosome (GCBMs) and phytantriol based cubosomes (PCBMs) for effective management of doxorubicin-induced cardiotoxicity and to enhance bioavailability of UDC. Formulations optimized using statistical hybrid-design approach exhibited particle size of 152.0 +/- 1.78 and 248.8 +/- 1.83 nm, polydispersity index of 0.183 +/- 0.021 and 0.225 +/- 0.018 with zeta potential of -26.8 +/- 0.76 and -23.3 +/- 0.22 mV and percentage entrapment efficiency (% EE) of 92.3 +/- 4.99% and 94.7 +/- 5.67%, for GCBMs and PCBMs, respectively. High-resolution transmission electron microscopy revealed agreement with the particle size and shows the discrete cubic geometry of particles, while small-angle X-ray scattering analysis confirmed the primitive (Im3m) and diamond (Pn3m) type crystalline cubic self-assemble structure of the particles. The comparative bioavailability profiles of UDC from GCBMs and PCBMs (AUC(0 ->infinity) = 19,546.8 +/- 512.88 ng.h/L for GCBMs and 27,961.99 +/- 602.46 ng.h/L for PCBMs) were approximately 6.5- and 7.0-fold higher than that of UDC suspension (AUC(0 ->infinity) = 3132.806 +/- 405.44 ng.h/L). Cardioprotective assessment showed a significant increase in superoxide dismutase and beta-glutathione peroxidase levels, while a decrease in the level of catalase, creatine kinase-MB isoenzyme, lactate dehydrogenase, and lipid peroxidation was observed in animals pre-treated with developed CBMs. Histopathology studies revealed no significant damage, infiltrated cells, and signs of fibrosis in the CBM-treated groups. (C) 2017 American Pharmacists Association (R). Published by Elsevier Inc. All rights reserved.
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