Source:http://linkedlifedata.com/resource/pubmed/id/18611027
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
16
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pubmed:dateCreated |
2008-8-21
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pubmed:abstractText |
Mycophenolic acid (MPA) was reacted with N-hydroxysuccinimide and conjugated to keyhole limpet hemocyanin (KLH), and to horseradish peroxidase (HRP), respectively. The MPA-KLH was used to produce anti-MPA antiserum in rabbits. A competitive direct enzyme immunoassay (EIA) for MPA was established with anti-MPA antiserum and MPA-HRP conjugate. The mean 50% inhibition and detection limit of MPA standard curves (n = 103) were 197 +/- 67 and 81 +/- 48 pg/mL, respectively. The EIA was specific for MPA and its synthetic 2-morpholinoethyl ester, mycophenolate mofetil (91% relative cross-reactivity). Raw bulk milk and pasteurized milk, with and without beta-glucuronidase pretreatment, were analyzed by EIA. No MPA was found in milk, at a detection limit of 100 pg/mL (recovery 58-66% at 0.125-2 ng/mL). Blue-veined cheese from the German market (n = 53) was analyzed by EIA, and the detection limit was at 0.5 ng/g (recovery 68-79% at 5-100 ng/g). All but two cheeses contained MPA, although mostly (66%) at levels of <10 ng/g. MPA at 400-1200 ng/g was found in Roquefort cheeses. Highest levels (4-11 microg/g) were found in a German soft cheese preparation. MPA levels in mycelium-rich parts of cheese were 3 times higher than in mycelium-free parts.
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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 |
Aug
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pubmed:issn |
1520-5118
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:day |
27
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pubmed:volume |
56
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
6857-62
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pubmed:meshHeading |
pubmed-meshheading:18611027-Animals,
pubmed-meshheading:18611027-Antibiotics, Antineoplastic,
pubmed-meshheading:18611027-Cheese,
pubmed-meshheading:18611027-Immune Sera,
pubmed-meshheading:18611027-Immunoenzyme Techniques,
pubmed-meshheading:18611027-Milk,
pubmed-meshheading:18611027-Mycophenolic Acid,
pubmed-meshheading:18611027-Rabbits,
pubmed-meshheading:18611027-Sensitivity and Specificity
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pubmed:year |
2008
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pubmed:articleTitle |
Enzyme immunoassay for mycophenolic acid in milk and cheese.
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pubmed:affiliation |
Institute of Veterinary Food Science, Veterinary Faculty, Justus-Liebig-University, Ludwigstrasse 21, 35390 Giessen, Germany. ewald.usleber@vetmed.uni-giessen.de
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pubmed:publicationType |
Journal Article,
Comparative Study
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