scholarly journals Localization of serotonin in the nervous system of Biomphalaria glabrata, an intermediate host for schistosomiasis

2012 ◽  
Vol 520 (14) ◽  
pp. 3236-3255 ◽  
Author(s):  
Nadia Delgado ◽  
Deborah Vallejo ◽  
Mark W. Miller
Keyword(s):  
Nervous System ◽  
Intermediate Host ◽  
Biomphalaria Glabrata

scholarly journals Activities of naphthoquinones against Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae), vector of dengue and Biomphalaria glabrata (Say, 1818), intermediate host of Schistosoma mansoni

Acta Tropica ◽  
2009 ◽  
Vol 111 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Karlos A.L. Ribeiro ◽  
Cenira Monteiro de Carvalho ◽  
Maria Teresa Molina ◽  
Estelita Pereira Lima ◽  
Eulogio López-Montero ◽  
...  
Keyword(s):  
Aedes Aegypti ◽  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Biomphalaria Glabrata

scholarly journals Female biased sex-ratio in Schistosoma mansoni after exposure to an allopatric intermediate host strain of Biomphalaria glabrata

2013 ◽  
Vol 135 (2) ◽  
pp. 350-356 ◽  
Author(s):  
Julie M.J. Lepesant ◽  
Jérôme Boissier ◽  
Déborah Climent ◽  
Céline Cosseau ◽  
Christoph Grunau
Keyword(s):  
Sex Ratio ◽  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Biomphalaria Glabrata ◽  
Host Strain ◽  
Biased Sex Ratio

scholarly journals The behavioral effects of antibiotic treatment on the snailBiomphalaria glabrata

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e4171 ◽  
Author(s):  
Euan R.O. Allan ◽  
Michael S. Blouin
Keyword(s):  
Tissue Culture ◽  
Intermediate Host ◽  
Antibiotic Treatment ◽  
New World ◽  
Biomphalaria Glabrata ◽  
Behavioral Effects ◽  
Neglected Tropical Disease ◽  
Intermediate Hosts ◽  
And Control ◽  
Main Model

Schistosomiasis is a detrimental neglected tropical disease that is transmitted by Planorbid snails. Understanding the transmission and control of this disease requires an extensive understanding of these intermediate hosts, which is only achieved by the effective rearing and study of species such asBiomphalaria glabrata. This species is the intermediate host forSchistosoma mansoniin the New World, and is also the main model for studying schistosomes in mollusks. Antibiotics are used routinely inB. glabratatissue culture, and occasionally on live snails. Here we show that standard doses of three common antibiotics (penicillin, streptomycin and gentamicin) drastically diminish the activity of healthyB. glabrata, but that treated snails recover rapidly when placed in fresh water. Ampicillin treated snails did not show altered activity. We suggest that researchers keep these apparent toxicities in mind if a need for antibiotic treatment of live Planorbid snails arises.

The influence of second intermediate host species on the infectivity of metacercarial cysts of Echinoparyphium recurvatum

1999 ◽  
Vol 73 (2) ◽  
pp. 143-145 ◽  
Author(s):  
A.M. McCarthy
Keyword(s):  
Intermediate Host ◽  
Definitive Host ◽  
Host Species ◽  
Post Infection ◽  
Rana Temporaria ◽  
Biomphalaria Glabrata ◽  
Reproductive Status ◽  
Intermediate Hosts ◽  
Potential Influence ◽  
Second Intermediate Host

The potential influence of second intermediate host species on the infectivity of metacercarial cysts of Echinoparyphium recurvatum to the definitive host Anas platyrhynchos was examined experimentally. Echinoparyphium recurvatum metacercarial cysts were obtained from the following experimentally infected second intermediate hosts 14 days post expsoure to cercariae: Lymnaea peregra; Physa fontinalis; L. stagnalis;Planorbis planorbis; Biomphalaria glabrata; tadpoles of the amphibian Rana temporaria. Metacercarial cysts from each of these hosts were fed, in doses of 50 cysts per individual, to separate groups composed of between four and eight, 3-day-old A. platyrhynchos ducklings. All A. platyrhynchos were necropsied 15 days post-infection and the number, size, and reproductive status of E. recurvatum worms in the intestine was recorded. Analyses of variance on the number (transformed log (x + 1)) and size of worms revealed no significant differences in worms originating from metacercariae formed in the different second intermediate hosts (worm number P > 0.05, and worm size P > 0.05). All worms recovered were found to be gravid. It is therefore concluded that the species of second intermediate host utilized does not influence the infectivity of the metacercarial cyst of E. recurvatum, nor the subsequent establishment and reproductive status of the parasite in A. platyrhynchos.

Molluscicidal activity of polyvinylpyrrolidone (PVP)-functionalized silver nanoparticles to Biomphalaria glabrata: Implications for control of intermediate host snail of Schistosoma mansoni

Acta Tropica ◽  
2020 ◽  
Vol 211 ◽  
pp. 105644 ◽  
Author(s):  
Paula Sampaio Araújo ◽  
Maxwell Batista Caixeta ◽  
Rafaella da Silva Brito ◽  
Bruno Bastos Gonçalves ◽  
Sueli Maria da Silva ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Schistosoma Mansoni ◽  
Intermediate Host ◽  
Biomphalaria Glabrata ◽  
Intermediate Host Snail ◽  
Host Snail ◽  
Molluscicidal Activity

In silico-driven identification of novel molluscicides effective against Biomphalaria glabrata (Say, 1818)

2020 ◽  
Vol 44 (39) ◽  
pp. 16948-16958
Author(s):  
Daniela Braz dos Santos ◽  
José Teófilo Moreira-Filho ◽  
Amanda de Oliveira Melo ◽  
Josiel Araújo Lemes ◽  
Luciana Damacena Silva ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Intermediate Host ◽  
In Silico ◽  
Biomphalaria Glabrata ◽  
Freshwater Ecosystem ◽  
Schistosomiasis Control ◽  
Endemic Areas ◽  
Transmission Of Disease

Schistosomiasis control in endemic areas depends on several factors, including mass drug delivery programs and interrupting the transmission of disease by controlling the intermediate host snails in the freshwater ecosystem using molluscicides.

scholarly journals Angiostrongylus vasorum: Experimental Infection and Larval Development inOmalonyx matheroni

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
L. R. Mozzer ◽  
L. C. Montresor ◽  
T. H. D. A. Vidigal ◽  
W. S. Lima
Keyword(s):  
Intermediate Host ◽  
Larval Development ◽  
Experimental Infection ◽  
Biomphalaria Glabrata ◽  
Prepatent Period ◽  
Angiostrongylus Vasorum ◽  
Larval Recovery

The susceptibility and suitability ofOmalonyx matheronias an intermediate host ofAngiostrongylus vasorumand the characteristics of larval recovery and development were investigated. Mollusks were infected, and from the 3rd to the 25th day after infection, larvae were recovered from groups of 50 individuals. The first observation of L2 was on the 5th day, and the first observation of L3 was on the 10th day. From the 22nd day on, all larvae were at the L3 stadium. Larval recovery varied from 78.2% to 95.2%. We found larval development to be faster inO. matheronithan inBiomphalaria glabrata. Our findings indicate that this mollusk is highly susceptible toA. vasorum. Infective L3 were orally inoculated into a dog, and the prepatent period was 39 days. This is the first study to focus onO. matheronias an intermediate host ofA. vasorum.

scholarly journals Molluscicidal Activity of Polyacetylenes from Ambrosia maritima Hairy Roots

2007 ◽  
Vol 2 (2) ◽  
pp. 1934578X0700200
Author(s):  
Sameh AbouZid ◽  
Yutaka Orihara ◽  
Masanori Kawanaka
Keyword(s):  
Intermediate Host ◽  
Sesquiterpene Lactone ◽  
Hairy Roots ◽  
Biomphalaria Glabrata ◽  
Lipophilic Extract ◽  
Main Form ◽  
Molluscicidal Activity

Thiarubrine A, thiarubrine A epoxide, thiarubrine A diol, and their precursor pentayneene were produced by hairy roots of Ambrosia maritima. The molluscicidal activity of the lipophilic extract of the hairy roots and isolated polyacetylenes were investigated. The activity was studied against Schistosome intermediate host Biomphalaria glabrata. Thiarubrine A diol, the main form detected in the medium, showed the highest activity with LC50 = 0.37 ppm. This activity is 23 times higher than that of ambrosin, a sesquiterpene lactone that has long been regarded as the main molluscicidal agent of the plant. Thiarubrine A diol can be an environmentally accepted molluscicidal agent in areas endemic with schistosomiasis.

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