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      Action of pentamidine-bound nanoparticles againstLeishmaniaon anin vivomodel

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          Abstract

          The efficiency of antileishmanial agents may be enhanced by improving their bioavailability with a colloidal drug carrier. We have investigated the action of free pentamidine, compared with pentamidine bound to polymethacrylate nanoparticles, in a rodent model. BALB/c mice were infected, via the tail vein, with 4 x 10(7) L. major (MON 74) promastigotes. Twelve days after infection, seven groups of mice were treated respectively with methylglucamine antimoniate (Glucantime) 5.56 mg/kg i.p. x 5 d., pentamidine bound nanoparticles (100 microM), unloaded polymethacrylate nanoparticles, unloaded nanoparticles associated with free pentamidine (100 microM) 0.1 ml i.v. x 3 d and free pentamidine isethionate (2.28 mg/kg and 0.17 mg/kg i.v. x 3 d.). Twenty-one days post infection, the mice were sacrificed and the Leishmania load in the liver calculated from the number of amastigotes/500 liver cells and total liver weight in treated and untreated mice. Results demonstrated a 77% amastigote reduction in the group treated with targeted pentamidine relative to the control group. The ratio free pentamidine/bound-pentamidine was approx. 12.

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          Author and article information

          Journal
          Parasite
          Parasite
          EDP Sciences
          1252-607X
          1776-1042
          December 1994
          September 2014
          : 1
          : 4
          : 319-324
          Article
          10.1051/parasite/1994014319
          9140499
          © 1994

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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          Self URI (journal page): http://www.parasite-journal.org/

          Parasitology, Life sciences

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