Source:http://linkedlifedata.com/resource/pubmed/id/18417228
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2008-4-28
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pubmed:abstractText |
To investigate the physiologic role of cytosolic 2-Cys peroxiredoxin of Plasmodium berghei (PbTPx-1), we infected the vector mosquito Anopheles stephensi with a parasite carrying a targeted knockout of pbtpx-1 (Prx-KO). The number of Prx-KO midgut oocysts at 14-15 days post-feeding (pf) was comparable to that of the parent strain (WT); however, the numbers of sporozoites that formed in midgut oocysts and accumulated in the salivary gland of Prx-KO-infected mosquitoes by 21 days pf were decreased to 10-20% and 3-10%, respectively, of those values in WT-infected mosquitoes. A higher frequency of DNA strand breaks was detected in Prx-KO oocysts than in WT oocysts. Sporozoites carrying the targeted disruption had reduced infectivity in mice; however, the knockout did not affect the ability of the sporozoite to reach the liver parenchyma and initiate exo-erythrocytic form (EEF) development. TPx-1 may be involved in development during exponentially multiplying stages, such as sporozoites and EEF.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0166-6851
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
159
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
142-5
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pubmed:meshHeading |
pubmed-meshheading:18417228-Animals,
pubmed-meshheading:18417228-Culicidae,
pubmed-meshheading:18417228-DNA, Protozoan,
pubmed-meshheading:18417228-DNA Breaks,
pubmed-meshheading:18417228-Gastrointestinal Tract,
pubmed-meshheading:18417228-Gene Deletion,
pubmed-meshheading:18417228-Liver,
pubmed-meshheading:18417228-Malaria,
pubmed-meshheading:18417228-Mice,
pubmed-meshheading:18417228-Mutagenesis, Insertional,
pubmed-meshheading:18417228-Parasite Egg Count,
pubmed-meshheading:18417228-Peroxiredoxins,
pubmed-meshheading:18417228-Plasmodium berghei,
pubmed-meshheading:18417228-Protozoan Proteins,
pubmed-meshheading:18417228-Salivary Glands,
pubmed-meshheading:18417228-Sporozoites
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pubmed:year |
2008
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pubmed:articleTitle |
Disruption of the Plasmodium berghei 2-Cys peroxiredoxin TPx-1 gene hinders the sporozoite development in the vector mosquito.
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pubmed:affiliation |
Research Institute, International Medical Center of Japan, Tokyo, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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