EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE
SUMMARY The efficacy of nitazoxanide (NTZ) against toxocariasis was investigated in an experimental murine model and results were compared to those obtained using mebendazole. Sixty male BALB/c mice, aged six to eight weeks-old, were divided into groups of 10 each; fifty were orally infected with 30...
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ftdoajarticles:oai:doaj.org/article:372f10f37e5e4730a5806a1a5fa78c5d 2024-09-09T19:27:30+00:00 EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE Susana A. Zevallos LESCANO Sergio Vieira dos SANTOS Jesiel Maurício Lemos ASSIS Pedro Paulo CHIEFFI 2015-08-01T00:00:00Z https://doi.org/10.1590/S0036-46652015000400011 https://doaj.org/article/372f10f37e5e4730a5806a1a5fa78c5d EN eng Universidade de São Paulo (USP) http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652015000400337&lng=en&tlng=en https://doaj.org/toc/1678-9946 1678-9946 doi:10.1590/S0036-46652015000400011 https://doaj.org/article/372f10f37e5e4730a5806a1a5fa78c5d Revista do Instituto de Medicina Tropical de São Paulo, Vol 57, Iss 4, Pp 337-341 (2015) Experimental toxocariasis infection Migrating larvae Mebendazole (MBZ) Nitazoxanide (NTZ) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2015 ftdoajarticles https://doi.org/10.1590/S0036-46652015000400011 2024-08-05T17:49:30Z SUMMARY The efficacy of nitazoxanide (NTZ) against toxocariasis was investigated in an experimental murine model and results were compared to those obtained using mebendazole. Sixty male BALB/c mice, aged six to eight weeks-old, were divided into groups of 10 each; fifty were orally infected with 300 larvaed eggs of T. canisand grouped as follows, G I: infected untreated mice; G II: infected mice treated with MBZ (15 mg/kg/day) 10 days postinfection (dpi); G III: infected mice treated with NTZ (20 mg/kg/day) 10 dpi; G IV: infected mice treated with MBZ 60 dpi; G V: infected mice treated with NTZ 60 dpi; GVI: control group comprising uninfected mice. Mice were bled via retro-orbital plexus on four occasions between 30 and 120 dpi. Sera were processed using the ELISA technique to detect IgG anti- Toxocaraantibodies. At 120 dpi, mice were sacrificed for larval recovery in the CNS, liver, lungs, kidneys, eyes and carcass. Results showed similar levels of anti- ToxocaraIgG antibodies among mice infected but not submitted to treatment and groups treated with MBZ or NTZ, 10 and 60 dpi. Larval recovery showed similar values in groups treated with NTZ and MBZ 10 dpi. MBZ showed better efficacy 60 dpi, with a 72.6% reduction in the parasite load compared with NTZ, which showed only 46.5% reduction. We conclude that administration of these anthelmintics did not modify the humoral response in experimental infection by T. canis. No parasitological cure was observed with either drug; however, a greater reduction in parasite load was achieved following treatment with MBZ. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Revista do Instituto de Medicina Tropical de São Paulo 57 4 337 341 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Experimental toxocariasis infection Migrating larvae Mebendazole (MBZ) Nitazoxanide (NTZ) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Experimental toxocariasis infection Migrating larvae Mebendazole (MBZ) Nitazoxanide (NTZ) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 Susana A. Zevallos LESCANO Sergio Vieira dos SANTOS Jesiel Maurício Lemos ASSIS Pedro Paulo CHIEFFI EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE |
topic_facet |
Experimental toxocariasis infection Migrating larvae Mebendazole (MBZ) Nitazoxanide (NTZ) Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
SUMMARY The efficacy of nitazoxanide (NTZ) against toxocariasis was investigated in an experimental murine model and results were compared to those obtained using mebendazole. Sixty male BALB/c mice, aged six to eight weeks-old, were divided into groups of 10 each; fifty were orally infected with 300 larvaed eggs of T. canisand grouped as follows, G I: infected untreated mice; G II: infected mice treated with MBZ (15 mg/kg/day) 10 days postinfection (dpi); G III: infected mice treated with NTZ (20 mg/kg/day) 10 dpi; G IV: infected mice treated with MBZ 60 dpi; G V: infected mice treated with NTZ 60 dpi; GVI: control group comprising uninfected mice. Mice were bled via retro-orbital plexus on four occasions between 30 and 120 dpi. Sera were processed using the ELISA technique to detect IgG anti- Toxocaraantibodies. At 120 dpi, mice were sacrificed for larval recovery in the CNS, liver, lungs, kidneys, eyes and carcass. Results showed similar levels of anti- ToxocaraIgG antibodies among mice infected but not submitted to treatment and groups treated with MBZ or NTZ, 10 and 60 dpi. Larval recovery showed similar values in groups treated with NTZ and MBZ 10 dpi. MBZ showed better efficacy 60 dpi, with a 72.6% reduction in the parasite load compared with NTZ, which showed only 46.5% reduction. We conclude that administration of these anthelmintics did not modify the humoral response in experimental infection by T. canis. No parasitological cure was observed with either drug; however, a greater reduction in parasite load was achieved following treatment with MBZ. |
format |
Article in Journal/Newspaper |
author |
Susana A. Zevallos LESCANO Sergio Vieira dos SANTOS Jesiel Maurício Lemos ASSIS Pedro Paulo CHIEFFI |
author_facet |
Susana A. Zevallos LESCANO Sergio Vieira dos SANTOS Jesiel Maurício Lemos ASSIS Pedro Paulo CHIEFFI |
author_sort |
Susana A. Zevallos LESCANO |
title |
EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE |
title_short |
EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE |
title_full |
EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE |
title_fullStr |
EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE |
title_full_unstemmed |
EFFICACY OF NITAZOXANIDE AGAINST Toxocara canis: LARVAL RECOVERY AND HUMORAL IMMUNE RESPONSE IN EXPERIMENTALLY INFECTED MICE |
title_sort |
efficacy of nitazoxanide against toxocara canis: larval recovery and humoral immune response in experimentally infected mice |
publisher |
Universidade de São Paulo (USP) |
publishDate |
2015 |
url |
https://doi.org/10.1590/S0036-46652015000400011 https://doaj.org/article/372f10f37e5e4730a5806a1a5fa78c5d |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Revista do Instituto de Medicina Tropical de São Paulo, Vol 57, Iss 4, Pp 337-341 (2015) |
op_relation |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0036-46652015000400337&lng=en&tlng=en https://doaj.org/toc/1678-9946 1678-9946 doi:10.1590/S0036-46652015000400011 https://doaj.org/article/372f10f37e5e4730a5806a1a5fa78c5d |
op_doi |
https://doi.org/10.1590/S0036-46652015000400011 |
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Revista do Instituto de Medicina Tropical de São Paulo |
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57 |
container_issue |
4 |
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337 |
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341 |
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