Effects of levamisole on experimental infections by Plasmodium berghei in mice

Levamisole (phenylimidothiazol), considered a strong immunostimulant, when administered to healthy Swiss mice did not cause a significant increase in -the weight of their thymus, liver and spleen, even though the drug was used at different times before removing such organs. High doses ofdrug used in...

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Main Authors: Enrique Melendez C., Antoniana U. Krettli
Format: Article in Journal/Newspaper
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT) 1987
Subjects:
Online Access:https://doaj.org/article/8b650a6dc3304d9ba416d88040e7d418
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spelling ftdoajarticles:oai:doaj.org/article:8b650a6dc3304d9ba416d88040e7d418 2023-05-15T15:14:56+02:00 Effects of levamisole on experimental infections by Plasmodium berghei in mice Enrique Melendez C. Antoniana U. Krettli 1987-12-01T00:00:00Z https://doaj.org/article/8b650a6dc3304d9ba416d88040e7d418 EN eng Sociedade Brasileira de Medicina Tropical (SBMT) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821987000400002 https://doaj.org/toc/0037-8682 https://doaj.org/toc/1678-9849 0037-8682 1678-9849 https://doaj.org/article/8b650a6dc3304d9ba416d88040e7d418 Revista da Sociedade Brasileira de Medicina Tropical, Vol 20, Iss 4, Pp 193-198 (1987) Malária Plasmodium berghei Cepa cloroquina-resistente Levamisol Imunoestimulante Malaria Chloroquine-resistant strain Levamisole Immunostimulation Arctic medicine. Tropical medicine RC955-962 article 1987 ftdoajarticles 2022-12-30T21:27:57Z Levamisole (phenylimidothiazol), considered a strong immunostimulant, when administered to healthy Swiss mice did not cause a significant increase in -the weight of their thymus, liver and spleen, even though the drug was used at different times before removing such organs. High doses ofdrug used in the 4-day prophylactic scheme had no antimalarial effect. However, when given to malaria infected mice 24 hours before, at the same time, and 24 hours after the inoculation of a chloroquine-sensitive or a chloroquine-resistant strain of Plasmodium berghei small doses of the drug induced a somewhat decreased parasitemia, the dose of 1 mg/kg body weight before the inoculum being the best scheme. The mortality rates by malaria in the levamisole treated groups were also delayed although all mice finally died. The data suggest that levamisole may display a stimulant effect on the depressed immune response caused by malaria. Levamisol (fenilimidotiazol), considerado urn potente imunoestimulante, quando administrado a camundongos suíços não causou aumento significante nos pesos do timo, figado ou baço, apesar de a droga ter sido usada em diferentes tempos antes da remoção desses órgãos. Doses elevadas da droga usadas no esquema profilático de 4 dias não tiveram efeito antimalárico. Entretanto quando dada a camundongos com malária, 24 horas antes, ao mesmo tempo ou 24 horas após inoculação de uma cepa de Plasmodium berghei cloroquina-sensível ou uma cepa cloroquina- resistente o levamisol reduziu, ainda que discretamente, a parasitemia nos grupos tratados, sendo a dose de 1 mg/kg o melhor esquema. Foi observado também atraso na mortalidade por malária nos grupos tratados com o levamisol. No entanto, todos os animais morreram. Os dados sugerem que o levamisol tem efeito imunoestimulante, ainda que discreto, na resposta imune de animais, deprimida pela malária. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Droga ENVELOPE(6.521,6.521,62.644,62.644)
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Malária
Plasmodium berghei
Cepa cloroquina-resistente
Levamisol
Imunoestimulante
Malaria
Chloroquine-resistant strain
Levamisole
Immunostimulation
Arctic medicine. Tropical medicine
RC955-962
spellingShingle Malária
Plasmodium berghei
Cepa cloroquina-resistente
Levamisol
Imunoestimulante
Malaria
Chloroquine-resistant strain
Levamisole
Immunostimulation
Arctic medicine. Tropical medicine
RC955-962
Enrique Melendez C.
Antoniana U. Krettli
Effects of levamisole on experimental infections by Plasmodium berghei in mice
topic_facet Malária
Plasmodium berghei
Cepa cloroquina-resistente
Levamisol
Imunoestimulante
Malaria
Chloroquine-resistant strain
Levamisole
Immunostimulation
Arctic medicine. Tropical medicine
RC955-962
description Levamisole (phenylimidothiazol), considered a strong immunostimulant, when administered to healthy Swiss mice did not cause a significant increase in -the weight of their thymus, liver and spleen, even though the drug was used at different times before removing such organs. High doses ofdrug used in the 4-day prophylactic scheme had no antimalarial effect. However, when given to malaria infected mice 24 hours before, at the same time, and 24 hours after the inoculation of a chloroquine-sensitive or a chloroquine-resistant strain of Plasmodium berghei small doses of the drug induced a somewhat decreased parasitemia, the dose of 1 mg/kg body weight before the inoculum being the best scheme. The mortality rates by malaria in the levamisole treated groups were also delayed although all mice finally died. The data suggest that levamisole may display a stimulant effect on the depressed immune response caused by malaria. Levamisol (fenilimidotiazol), considerado urn potente imunoestimulante, quando administrado a camundongos suíços não causou aumento significante nos pesos do timo, figado ou baço, apesar de a droga ter sido usada em diferentes tempos antes da remoção desses órgãos. Doses elevadas da droga usadas no esquema profilático de 4 dias não tiveram efeito antimalárico. Entretanto quando dada a camundongos com malária, 24 horas antes, ao mesmo tempo ou 24 horas após inoculação de uma cepa de Plasmodium berghei cloroquina-sensível ou uma cepa cloroquina- resistente o levamisol reduziu, ainda que discretamente, a parasitemia nos grupos tratados, sendo a dose de 1 mg/kg o melhor esquema. Foi observado também atraso na mortalidade por malária nos grupos tratados com o levamisol. No entanto, todos os animais morreram. Os dados sugerem que o levamisol tem efeito imunoestimulante, ainda que discreto, na resposta imune de animais, deprimida pela malária.
format Article in Journal/Newspaper
author Enrique Melendez C.
Antoniana U. Krettli
author_facet Enrique Melendez C.
Antoniana U. Krettli
author_sort Enrique Melendez C.
title Effects of levamisole on experimental infections by Plasmodium berghei in mice
title_short Effects of levamisole on experimental infections by Plasmodium berghei in mice
title_full Effects of levamisole on experimental infections by Plasmodium berghei in mice
title_fullStr Effects of levamisole on experimental infections by Plasmodium berghei in mice
title_full_unstemmed Effects of levamisole on experimental infections by Plasmodium berghei in mice
title_sort effects of levamisole on experimental infections by plasmodium berghei in mice
publisher Sociedade Brasileira de Medicina Tropical (SBMT)
publishDate 1987
url https://doaj.org/article/8b650a6dc3304d9ba416d88040e7d418
long_lat ENVELOPE(6.521,6.521,62.644,62.644)
geographic Arctic
Droga
geographic_facet Arctic
Droga
genre Arctic
genre_facet Arctic
op_source Revista da Sociedade Brasileira de Medicina Tropical, Vol 20, Iss 4, Pp 193-198 (1987)
op_relation http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821987000400002
https://doaj.org/toc/0037-8682
https://doaj.org/toc/1678-9849
0037-8682
1678-9849
https://doaj.org/article/8b650a6dc3304d9ba416d88040e7d418
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