کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2480409 1556188 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Topical treatment of L. major infected BALB/c mice with a novel diselenide chitosan hydrogel formulation
موضوعات مرتبط
علوم پزشکی و سلامت داروسازی، سم شناسی و علوم دارویی اکتشاف دارویی
پیش نمایش صفحه اول مقاله
Topical treatment of L. major infected BALB/c mice with a novel diselenide chitosan hydrogel formulation
چکیده انگلیسی

Topical therapy is the ideal outpatient treatment of cutaneous leishmaniasis (CL) because of the ease of administration and lower cost. It could be suitable as monotherapy for localized cutaneous leishmaniasis (LCL) or in combination with systemic therapies for more severe forms of the disease. Although paromomycin (PM) ointment can be recommended for the treatment of LCL caused by Leishmaniamajor, a more effective topical treatment should be achieved regarding the physicochemical properties of this aminoglucoside and its rather poor intrinsic antileishmanial activity, that hampers the accumulation of enough amount of drug in the dermis (where the infected macrophages home) to exert its activity. In this work, we determined a 50% effective dose of 5.6 μM for a novel compound, bis-4-aminophenyldiselenide, against L. major intracellular amastigotes. This compound and PM were formulated in chitosan hydrogels and ex vivo permeation and retention studies in the different skin layers were performed with pig ear skin in Franz diffusion cells. The results showed that less than 2–4% of the diselenide drug penetrated and permeated through the skin. In contrast, the percentage of PM penetration was about 25–60% without important retention in the skin. When topically applied to lesions of L. major infected BALB/c mice, the novel diselenide chitosan formulation was unable to slow lesion progression and reduce parasite burden. Considerations during the process of novel drug development and formulation discovery algorithm for CL are discussed.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmaceutical Sciences - Volume 62, 1 October 2014, Pages 309–316
نویسندگان
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