Source:http://linkedlifedata.com/resource/pubmed/id/21648077
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
14
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pubmed:dateCreated |
2011-7-13
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pubmed:abstractText |
The non-imidazole H3 receptor antagonist UPR1056 was dosed in plasma samples from rats individually administered with a single i.p. dose of 1.25 mg/kg by means of a newly validated HPLC-MS method. UPR1056 was extracted from rat plasma by protein precipitation with acetonitrile and was separated by linear gradient elution, employing water and methanol both additioned with 0.05% trifluoroacetic acid as mobile phases. UPR1056 was detected in MS using an electrospray ion source operating in positive ion mode. Acquisition was performed in single ion monitoring mode at m/z=349.3. The method was validated over the concentration range of 17.43-1743 ng/mL (50-5000 pmol/mL). Within- and between-run precision for the low, mid and high quality controls (QC) levels were 6.75% or less and accuracy ranged from 95.8 to 107.6%. The lower limit of quantification was 17.43 ng/mL. The analysis of the time course of UPR1056 concentrations over the 24-h period revealed a C(max) of 1147 ng/mL after 2 h from peripheral administration of the non-imidazole H(3)-receptor antagonist, with a prolonged elimination half-life of over 9 h.
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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 |
Jul
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pubmed:issn |
1615-9314
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pubmed:author | |
pubmed:copyrightInfo |
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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pubmed:issnType |
Electronic
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pubmed:volume |
34
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1656-63
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pubmed:meshHeading |
pubmed-meshheading:21648077-Animals,
pubmed-meshheading:21648077-Chromatography, Liquid,
pubmed-meshheading:21648077-Histamine Antagonists,
pubmed-meshheading:21648077-Male,
pubmed-meshheading:21648077-Rats,
pubmed-meshheading:21648077-Rats, Wistar,
pubmed-meshheading:21648077-Receptors, Histamine H3,
pubmed-meshheading:21648077-Spectrometry, Mass, Electrospray Ionization
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pubmed:year |
2011
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pubmed:articleTitle |
Liquid chromatography-mass spectrometric method for determination of the non-imidazole H3-receptor antagonist UPR1056 in rat plasma.
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pubmed:affiliation |
Dipartimento Farmaceutico, Università degli Studi di Parma, Parma, Italy. federica.vacondio@unipr.it
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't,
Evaluation Studies
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