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Schistosoma mansoni: evaluation of the activity of oxamniquine on schistosomules, at 24 hours after infection.

Abstract
Mice transcutaneously infected with about 400 cercariae were submitted to treatment with oxamniquine (400 mg/kg), 24 hours after infection. The recovery of schistosomules, at 4, 24, 48 and 72 hours and 35 days after treatment, showed the activity of the drug on the parasites, thus practically preventing their migration from the skin to the lungs. Worm recovery performed in the lungs (96 hours after treatment) showed recovery means of 0.6 worms/mouse in the treated group and 53.8 in the control group (untreated). The perfusion of the portal system carried out at 35 days after treatment clearly showed the elimination of all the parasites in the treated group, whereas a recovery mean of 144.7 worms/mouse was detected in the control group (untreated). These findings confirm the efficacy of oxamniquine at the skin phase of infection, and also show similarity with the immunization method that uses irradiated cercariae. The practical application of these findings in the medical clinic is discussed too.
AuthorsP M Coelho, R T de Mello, S E Gerken
JournalRevista do Instituto de Medicina Tropical de Sao Paulo (Rev Inst Med Trop Sao Paulo) 1993 Nov-Dec Vol. 35 Issue 6 Pg. 557-61 ISSN: 0036-4665 [Print] Brazil
PMID7997761 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Oxamniquine
Topics
  • Analysis of Variance
  • Animals
  • Mice
  • Oxamniquine (pharmacology)
  • Schistosoma mansoni (drug effects, isolation & purification)
  • Schistosomiasis mansoni (drug therapy)

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