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Immunomodulatory effect of the alkaloidic extract of Solanum lycocarpum fruits in mice infected with Schistosoma mansoni.

Abstract：

:Schistosomiasis is a chronic disease caused by trematode flatworms of the genus Schistosoma; it accounts for more than 280,000 deaths annually. In this work we investigated the effect of the alkaloidic extract obtained by acid-base extraction of the dried fruits of Solanum lycocarpum on schistosomiasis. We used this extract at concentrations of 10, 20, and 40 mg/kg to treat mice infected with Schistosoma mansoni in different phases of the parasite cycle, and we compared its effect with that of the positive control praziquantel (60 mg/kg). We evaluated the results on the basis of the number of macrophages, eggs, and granulomas; we also assessed nitric oxide (NO) and interferon-gamma (IFN-γ) production. Animals treated with a daily dose of 10 or 20 mg/kg alkaloidic extract between the 37th and 41st day of infection showed increased number of macrophages, elevated NO and IFN-γ concentrations, and reduced number of eggs and granulomas in the liver. The alkaloidic extract of S. lycocarpum fruits displayed an immunomodulatory effect on mice infected with S. mansoni, so its potential to treat schistosomiasis deserves further studies.

journal_name

Exp Parasitol

journal_title

Experimental parasitology

authors

Miranda MA,Kuehn CC,Cardoso JF,Oliveira LG,Magalhães LG,Tiossi RF,Rodrigues V,Zucolloto S,Prado JC Jr,McChesney JD,Bastos JK

doi

10.1016/j.exppara.2012.12.012

subject

Has Abstract

pub_date

2013-04-01 00:00:00

pages

396-402

issue

4

eissn

0014-4894

issn

1090-2449

pii

S0014-4894(12)00383-9

journal_volume

133

pub_type

杂志文章

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