Linked Life Data

18371724

Source:http://linkedlifedata.com/resource/pubmed/id/18371724

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-3-28
pubmed:abstractText
A high-performance liquid chromatography-tandem mass spectrometric method (LC/MS/MS) has been developed and validated for the determination of pegylated liposomal doxorubicin and its metabolite doxorubicinol in rat plasma. One hundred microliters plasma samples were treated with Triton X-100 to immediately disperse the liposome. Then the samples were extracted by a single methanol:acetone protein precipitation step in the presence of additional 50microL of 70% (w/v) zinc sulfate, and subsequently analyzed by LC/MS/MS using positive turbo-ion spray ionization mode operating the instrument in the multiple-reaction-monitoring (MRM) mode. The related compound daunorubicin was used as internal standard. The validated concentration ranges were from 20 to 8000ng/mL for doxorubicin and from 0.05 to 20.0ng/mL for doxorubicinol. An effective LC-MS/MS method was developed to quantify trace amount of doxorubicinol with little interference from doxorubicin. The autosampler carryover was minimized from 285 to 10.5% by increasing the washing times of the valves when the used pentafluorophenylpropyl HPLC column had no contribution to the carryover. The relative matrix effect from six unique lots was absent for both compounds. Results obtained from the GLP validation study demonstrated good accuracy (85-110%) and precision (CV less than 14%) across the calibration ranges for both compounds. This method was applied to study the pharmacokinetic profiles of doxorubicin and doxorubicinol in rats after a single dose administration of Stealth-49 liposomal doxorubicin HCl. The mean AUC value for doxorubicinol was found to be only 0.011% of that of doxorubicin.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1873-3573
pubmed:author
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
887-95
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Quantification of pegylated liposomal doxorubicin and doxorubicinol in rat plasma by liquid chromatography/electrospray tandem mass spectroscopy: Application to preclinical pharmacokinetic studies.
pubmed:affiliation
Key Laboratory of Animal Virology of Ministry of Agriculture, State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't