Source:http://linkedlifedata.com/resource/pubmed/id/17888535
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2007-10-15
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pubmed:abstractText |
A reliable, rapid and low-cost method for drug sensitivity determination of Giardia duodenalis trophozoites (WB-strain) was developed in a 96-well plate. Using a standard inoculum of 5 x 10(4) trophozoites per well (300 microl), good growth was obtained after sealing the plate with an air-tight adhesive tape and incubation at 37 degrees C for 72 h in modified TYI-S-33 medium. Viable burdens were quantified using the formazan dyes MTT (100 microg/well) and XTT (20 microg/well) and the fluorescent substrate resazurin (2.5 microg/well). Prior removal of the culture medium is required since it causes spontaneous reduction of the substrate. Resazurin proved to be far superior to MTT and XTT with a level of sensitivity of about 3 x 10(4) trophozoites. Inhibitory concentrations (IC(50)) of several anti-giardial reference drugs were within the range of published values: metronidazole 2.25 microM, tinidazole 1.75 microM, albendazole 0.10 microM, furazolidone 2.00 microM and quinacrine 0.32 microM. The broad-spectrum antibiotics chloramphenicol, rifampicin, penicillin G+streptomycin and gentamycin were devoid of any inhibitory activity and are considered suitable for decontamination during excystation experiments.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/1,5-bis(2-methoxy-4-nitro-5-sulfophe...,
http://linkedlifedata.com/resource/pubmed/chemical/Anti-Bacterial Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Antiprotozoal Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Culture Media,
http://linkedlifedata.com/resource/pubmed/chemical/Formazans,
http://linkedlifedata.com/resource/pubmed/chemical/MTT formazan,
http://linkedlifedata.com/resource/pubmed/chemical/Oxazines,
http://linkedlifedata.com/resource/pubmed/chemical/Tetrazolium Salts,
http://linkedlifedata.com/resource/pubmed/chemical/Xanthenes,
http://linkedlifedata.com/resource/pubmed/chemical/resazurin
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pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0167-7012
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
71
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
101-6
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pubmed:meshHeading |
pubmed-meshheading:17888535-Animals,
pubmed-meshheading:17888535-Anti-Bacterial Agents,
pubmed-meshheading:17888535-Antiprotozoal Agents,
pubmed-meshheading:17888535-Culture Media,
pubmed-meshheading:17888535-Culture Techniques,
pubmed-meshheading:17888535-Formazans,
pubmed-meshheading:17888535-Giardia,
pubmed-meshheading:17888535-Inhibitory Concentration 50,
pubmed-meshheading:17888535-Microbial Sensitivity Tests,
pubmed-meshheading:17888535-Microbial Viability,
pubmed-meshheading:17888535-Oxazines,
pubmed-meshheading:17888535-Parasitology,
pubmed-meshheading:17888535-Tetrazolium Salts,
pubmed-meshheading:17888535-Trophozoites,
pubmed-meshheading:17888535-Xanthenes
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pubmed:year |
2007
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pubmed:articleTitle |
A new quantitative in vitro microculture method for Giardia duodenalis trophozoites.
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pubmed:affiliation |
Laboratory for Microbiology, Parasitology and Hygiene, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, Antwerp University, Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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