| Author | Katz, Naftale | |
| Author | Araújo, Neusa | |
| Author | Coelho, Paulo Marcos Zech | |
| Author | Morel, Carlos Medicis | |
| Author | Linde-Arias, Ana Rosa | |
| Author | Yamada, Takeshi | |
| Author | Horimatsu, Yuki | |
| Author | Suzuki, Koh | |
| Author | Sunazuka, Toshiaki | |
| Author | Omura, Satoshi | |
| Access date | 2017-06-20T13:21:58Z | |
| Available date | 2017-06-20T13:21:58Z | |
| Document date | 2017 | |
| Citation | Katz, N. et al. Ivermectin efficacy against Biomphalaria, intermediate host snail vectors of Schistosomiasis. The Journal of Antibiotics, v. 70, p. 680–684, 2017. | pt_BR |
| ISSN | 0021-8820 | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/19431 | |
| Language | eng | pt_BR |
| Publisher | Japan Antibiotics Research Association e | pt_BR |
| Rights | open access | pt_BR |
| Subject in Portuguese | Biomphalaria | pt_BR |
| Subject in Portuguese | Ivermectina | pt_BR |
| Subject in Portuguese | Esquistossomose | pt_BR |
| Title | Ivermectin efficacy against Biomphalaria, intermediate host snail vectors of Schistosomiasis | pt_BR |
| Type | Article | pt_BR |
| DOI | 10.1038/ja.2017.31 | |
| Abstract | The impact of ivermectin on adult snails of the genus Biomphalaria (B. glabrata, B. tenagophila and B. straminea), B. glabrata infected with Schistosoma mansoni, snail egg-masses cercariae and miracidia, as well as on guppy fish (Poecilia reticulata) was examined and evaluated. Biomphalaria snails, egg-masses, parasite stages and guppies were all exposed to different concentrations of ivermectin for 24 h, followed by regular observations of mortality. The calculated lethal doses of ivermectin were around an LD50 of 0.03 μg ml − 1, and an LD90 of 0.3 μg ml − 1 for the three species of snails. Specimens of B. glabrata actually shedding parasite cercariae all died when exposed to ivermectin at a concentration of a mere 0.01 μg ml − 1. Ivermectin B1a, the major (80%) component of commercially available ivermectin, proved to be inactive, and it was the minor (20%) component, ivermectin B1b, which caused snail death. Snail egg-masses were not affected, even at the highest concentration of 100 μg ml − 1. With respect to S. mansoni parasite stages, 0.2 μg ml − 1 ivermectin killed 50% of cercariae and miracidia within five minutes, rising to 90% after 30 min. Mortality of guppy fish within 24 h of exposure to ivermectin at concentrations of 0.5 μg ml − 1 and 0.01 μg ml − 1, were 100% and 30%, respectively. The concentration of 0.01 μg ml − 1 that killed Schistosoma
mansoni-infected snails only caused 30% mortality in guppy fish. Ivermectin can be considered a promising molluscicide, Especially as it is more potent against infected snails than uninfected ones, although it has no impact on egg-masses. Ivermectin and its derivatives could be explored in the search for a new agent to help control schistosomiasis transmission. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, Minas Gerais, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, Minas Gerais, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Belo Horizonte, Minas Gerais, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Desenvolvimento Tecnológico em Saúde. Rio de Janeiro, RJ, Brasil / Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas, Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Centro de Desenvolvimento Tecnológico em Saúde. Rio de Janeiro, RJ, Brasil / Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas, Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Kitasato University. Kitasato Institute for Life Sciences. Tokyo, Japan / Kitasato University. Graduate School of Infection Control Sciences. Tokyo, Japan. | pt_BR |
| Affilliation | Kitasato University. Graduate School of Infection Control Sciences. Tokyo, Japan. | pt_BR |
| Affilliation | Kitasato University. Graduate School of Infection Control Sciences. Tokyo, Japan. | pt_BR |
| Affilliation | Kitasato University. Kitasato Institute for Life Sciences. Tokyo, Japan / Kitasato University. Graduate School of Infection Control Sciences. Tokyo, Japan. | pt_BR |
| Affilliation | Kitasato University. Kitasato Institute for Life Sciences. Tokyo, Japan | pt_BR |
| Subject | Biomphalaria | pt_BR |
| Subject | Ivermectin | pt_BR |
| Subject | Schistosomiasis | pt_BR |
| e-ISSN | 1881-1469 | |
| Embargo date | 2017-09-15 | |
