Source:http://linkedlifedata.com/resource/pubmed/id/11931276
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
2002-4-4
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pubmed:abstractText |
The melanization responses of field-captured Anopheles gambiae s.l. toward oocysts of the malaria parasite Plasmodium falciparum or negatively charged (C-25) Sephadex beads were determined. Only two of 431 infected mosquitoes harboured melanized oocysts. However, 90% of field-captured mosquitoes melanized C-25 Sephadex beads. The effects of age, glucose concentration and blood meal on the melanization response of an An gambiae s.s. laboratory colony toward C-25 beads were also assayed. All newly emerged females (which did not blood-feed) melanized the beads. By 4 d postemergence, there was a marked reduction in melanization response, particularly among those mosquitoes that had not blood fed. A blood meal, however, taken by 4-d-old mosquitoes increased their immune response as did high glucose concentrations in the nonblood-fed group. These data indicate that C-25 Sephadex beads can estimate the general strength of An. gambiae's immune response. However, C-25 beads do not accurately model An. gambiae's susceptibility to P falciparum oocysts in natural populations. To the best of our knowledge, this is the first report of field refractoriness in An. gambiae s.l.
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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 |
Jan
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pubmed:issn |
0022-2585
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
39
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
84-8
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11931276-Animals,
pubmed-meshheading:11931276-Anopheles,
pubmed-meshheading:11931276-Dextrans,
pubmed-meshheading:11931276-Female,
pubmed-meshheading:11931276-Melanins,
pubmed-meshheading:11931276-Microspheres,
pubmed-meshheading:11931276-Oocytes,
pubmed-meshheading:11931276-Plasmodium falciparum,
pubmed-meshheading:11931276-Tanzania
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pubmed:year |
2002
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pubmed:articleTitle |
Melanization of plasmodium falciparum and C-25 sephadex beads by field-caught Anopheles gambiae (Diptera: Culicidae) from southern Tanzania.
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pubmed:affiliation |
Department of Zoology, Institute of Biological Science, University of Aarhus, Universitetsparken, Denmark.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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