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  • Title: Topical treatment of cutaneous leishmaniasis with novel amphotericin B-miltefosine co-incorporated second generation ultra-deformable liposomes.
    Author: Dar MJ, Khalid S, McElroy CA, Satoskar AR, Khan GM.
    Journal: Int J Pharm; 2020 Jan 05; 573():118900. PubMed ID: 31765786.
    Abstract:
    The present study aims to optimize and evaluate amphotericin B (AmB) and miltefosine (MTF) co-loaded second generation ultra-deformable liposomes (SGUDLs) for the topical treatment of cutaneous leishmaniasis (CL). The development of an effective topical drug formulation against CL is desirable because of its non-invasive nature, which may potentially enhance the patient adherence and treatment accessibility. AmB-MTF co-loaded SGUDLs were prepared and characterized for size, entrapment efficiency (EE) and elasticity. The optimized formulation was then subjected to ex-vivo permeation studies in addition to cytotoxicity and anti-leishmanial assays. The co-loaded SGUDLs had an average size of 139.7 ± 1.7 nm and high EE of 77.8 ± 3.9% with respect to AmB. The ex-vivo permeation of co-loaded SGUDLs exhibited 6.15-fold higher permeation of AmB. A synergistic interaction was observed between AmB and MTF, and anti-leishmanial activity of co-loaded SGUDLs against amastigotes of Lesihmania mexicana indicated 8.62 and 6.12-fold lower IC50 values of AmB and MTF as compared to plain drug solutions, respectively. The results of the in-vivo study displayed a significant reduction in the parasitic burden in an infected BALB/c experimental model of CL. In conclusion, AmB-MTF co-loaded SGUDLs could be an effective topical treatment option against CL.
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