Treatment with mebendazole is not associated with distal migration of adult Angiostrongylus costaricensis in the murine experimental infection O tratamento com mebendazol não está associado a migração distal de adultos de Angiostrongylus costaricensis na infecção experimental murina
Abdominal angiostrongyliasis is a zoonotic infection produced by a metastrongylid intra-arterial nematode, Angiostrongylus costaricensis. Human accidental infection may result in abdominal lesions and treatment with anti-helminthics is contra-indicated because of potential higher morbidity with exci...
| Published in: | Revista do Instituto de Medicina Tropical de São Paulo |
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| Main Authors: | , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Universidade de São Paulo (USP)
2004
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| Subjects: | |
| Online Access: | https://doi.org/10.1590/S0036-46652004000200003 https://doaj.org/article/2beac564a8ad46fd8b0871d02a0f8a77 |
| Summary: | Abdominal angiostrongyliasis is a zoonotic infection produced by a metastrongylid intra-arterial nematode, Angiostrongylus costaricensis. Human accidental infection may result in abdominal lesions and treatment with anti-helminthics is contra-indicated because of potential higher morbidity with excitement or death of worms inside vessels. To evaluate the effect of mebendazole on localization of the worms, male Swiss mice, 5 week-old, were infected with 10 third stage larvae per animal. Twelve infected mice were treated with oral mebendazol, at 5 mg/kg/day, for 5 consecutive days, begining 22 days after inoculation. As control groups, 12 infected but non-treated mice and other 12 non-infected and non-treated mice were studied. The findings at necropsy were, respectively for the treated (T) and control (C) groups: 92% and 80% of the worms were inside the cecal mesenteric arterial branch; 8% and 10% were located inside the aorta. Only in the group C some worms (10%) were found inside the portal vein or splenic artery. These data indicate that treatment with mebendazole does not lead to distal or ectopic migration of A. costaricensis worms. Angiostrongilíase abdominal é uma zoonose causada por um metastrongilídeo intra-arterial, o Angiostrongylus costaricensis. Infecção acidental humana pode resultar em doença abdominal e o tratamento com anti-helmínticos é contra-indicado pela possibilidade de agravamento das lesões com a excitação ou morte dos vermes intra-vasculares. Para avaliar o efeito do mebendazole sobre a localização dos vermes, camundongos Swiss machos, com 5 semanas de idade foram infectados individualmente com 10 larvas de terceiro estágio. Doze deles foram tratados 22 dias após a infecção, com mebendazole, na dose de 5 mg/kg/dia, por 5 dias consecutivos. Igual número de camundongos infectados, não tratados e um terceiro grupo de animais não infectados e não tratados, serviram como grupos controles. À necrópsia observaram-se os seguintes resultados: a proporção de vermes adultos encontrados na artéria ... |
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