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Aboras, Sara I.; Korany, Mohamed A.; Abdine, Heba H.; Ragab, Marwa A.A.; El Diwany, Ahmed; Agwa, Mona M.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 12/2021, Volume: 1187Journal Article
Display omitted •HPLC-FLD assay for analyzing DXR and PDG in rat plasma.•Evaluating DXR and PDG loaded on Casein nano delivery system after IV in rats.•Comparative PK study for DXR, free and with PDG entrapped in nanomicelle.•Nanomicelle incorporates PDG and DXR in hydrophilic, safe, and potent formulation.•This nanomicelle has negligible effect on the distribution and elimination of DXR. A rapid, efficient, and sensitive liquid chromatographic assay hyphenated to fluorometric detector (HPLC-FLD) was developed and validated for the determination of doxorubicin (DXR) and prodigiosin (PDG) in rat plasma. The sample pre-treatment involves a protein precipitation with acetonitrile with satisfying extraction efficiency (98% and 85% for DXR and PDG, respectively). The chromatographic separation was accomplished using stationary phase: Agilent Zorbax Eclipse plus-C18 analytical column (250 × 4.6 mm, 5 μm) and gradient eluting mobile phase of ammonium acetate (pH = 3), acetonitrile and methanol with programmed fluorescence detection. As the proposed method has been validated, it was subsequently implemented to evaluate DXR and PDG loaded on novel eco-friendly Casein nano drug delivery system after intravenous injection in healthy rats. A comparative pharmacokinetics’ study was carried out in rats for DXR in free form, DXR alone entrapped in the nanomicelle and DXR with PDG entrapped in the nano micelle. After testing the differences in pharmacokinetic parameters of the different formulations using ANOVA, the results showed insignificant differences among the tested parameters. This indicates that the presented nanomicelle delivery system has succeeded to incorporate PDG and DXR in a hydrophilic, safe, and potent formulation. This novel nanomicelle has negligible effect on the distribution and elimination of DXR.
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