Abstract:
:Calfluxin (CaFl), one of the gonadotropic hormones of Lymnaea stagnalis, stimulates the influx of Ca2+ into the mitochondria of the cells of the albumen gland, one of the accessory sex organs of the snail. This effect is suppressed in glands of noninfected snails by an agent (schistosomin) present in the hemolymph of snails infected by Trichobilharzia ocellata as shown in in vitro experiments. The agent is present from 6 weeks postinfection onward. Ca2+ deposits in the mitochondria were demonstrated with the ultracytochemical antimonate precipitation technique. The percentage of Ca2+-positive mitochondria was taken as a measure for the effects of CaFl. This percentage appeared to be greatly reduced when glands were incubated in serum of infected snails (Sinf). The data showed that Ringer incubations can serve as controls for experiments with serum: no differences were found between Ringer incubations and incubations in either fresh or frozen serum of noninfected snails. Schistosomin was not affected by freezing, which enables cold storage of Sinf. The dose-response relationship of schistosomin shows that at a 1:2 dilution of Sinf with Ringer the response to CaFl was reduced more than 50%. Schistosomin is heat-stable and Pronase-labile, which indicates that it has a peptide nature. Probably schistosomin(s) is responsible for the reduction/cessation of fecundity in trematode-infected snails.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
de Jong-Brink M,Elsaadany MM,Boer HHdoi
10.1016/0014-4894(88)90110-5subject
Has Abstractpub_date
1988-02-01 00:00:00pages
91-100issue
1eissn
0014-4894issn
1090-2449pii
0014-4894(88)90110-5journal_volume
65pub_type
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journal_title:Experimental parasitology
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abstract::Giardia lamblia is a parasite that causes giardiasis in humans and other mammals. The common treatment includes different classes of drugs, which were described to produce unpleasant side effects. Mentha x piperita, popularly known as peppermint, is a plant that is frequently used in the popular medicine to treat gast...
journal_title:Experimental parasitology
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journal_title:Experimental parasitology
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journal_title:Experimental parasitology
pub_type: 杂志文章
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1996.0036
更新日期:1996-04-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2009.01.001
更新日期:2009-05-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2017.05.003
更新日期:2017-07-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2013.02.015
更新日期:2013-05-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(90)90108-o
更新日期:1990-04-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(83)90069-3
更新日期:1983-10-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2006.04.010
更新日期:2006-12-01 00:00:00
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pub_type: 杂志文章
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(88)90124-5
更新日期:1988-04-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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更新日期:1999-05-01 00:00:00
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更新日期:2012-06-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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abstract::Entamoeba histolytica infection is associated with considerable morbidity and mortality in the form of intestinal and extraintestinal amoebiasis. No vaccine is yet available for amoebiasis. Heparan Sulphate Binding Proteins (HSBPs) from E. histolytica were evaluated for immunogenicity and protective efficacy in a Guin...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2013.08.011
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(84)90056-0
更新日期:1984-02-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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abstract::Fasciolosis in ruminants is a relentless constraint in the livestock industry across the world. Immuno-prophylactic vaccines against fasciolosis may not come up in near future, rendering the control of this scourge with chemotherapy and snail population control. With the alarming threats of anti-fasciolid drug resista...
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pub_type: 杂志文章,评审
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2016.09.011
更新日期:2016-11-01 00:00:00
abstract::Rhoptries are involved in host cell invasion and rhoptry polypeptides, including the Babesia bigemina rhoptry-associated protein-1 (RAP-1), are targets for protective immune responses. Polyclonal antisera produced against isolated rhoptries is directed predominantly against RAP-1 and reacts with both the merozoite and...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1995.1142
更新日期:1995-12-01 00:00:00