Switch to
Predicate | Object |
---|---|
rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
|
pubmed:dateCreated |
1998-7-13
|
pubmed:abstractText |
A method is described for the determination of bradykinin, neuropeptide K (NPK), and substance P in patients with atypical carcinoid syndrome. The developed method uses a combination of conventional and solid-phase extraction as well as high-performance liquid chromatographic techniques. A narrow-bore C18 column with ultraviolet detection is used (200 nm). The technique recovers bradykinin at a level of 98%, NPK at 96%, and substance P at 98% (when pure standards are dissolved) at concentration levels relevant to the atypical carcinoid syndrome. In biological samples, the recovery rate of bradykinin, NPK, and substance P drops to 88, 86, and 88% respectively. The overall analysis time is 150 min from receipt of samples. This method proves to be a valuable tool in the identification of neuropeptides and thus the diagnosis of atypical carcinoid syndrome, especially in puzzling cases with nonspecific symptoms.
|
pubmed:language |
eng
|
pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Bradykinin,
http://linkedlifedata.com/resource/pubmed/chemical/Neuropeptides,
http://linkedlifedata.com/resource/pubmed/chemical/Substance P,
http://linkedlifedata.com/resource/pubmed/chemical/Tachykinins,
http://linkedlifedata.com/resource/pubmed/chemical/neuropeptide K
|
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0021-9665
|
pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
36
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
306-10
|
pubmed:dateRevised |
2006-11-15
|
pubmed:meshHeading |
pubmed-meshheading:9637018-Bradykinin,
pubmed-meshheading:9637018-Calibration,
pubmed-meshheading:9637018-Chromatography, High Pressure Liquid,
pubmed-meshheading:9637018-Humans,
pubmed-meshheading:9637018-Neuropeptides,
pubmed-meshheading:9637018-Plasma,
pubmed-meshheading:9637018-Reproducibility of Results,
pubmed-meshheading:9637018-Spectrophotometry, Ultraviolet,
pubmed-meshheading:9637018-Substance P,
pubmed-meshheading:9637018-Tachykinins
|
pubmed:year |
1998
|
pubmed:articleTitle |
High-performance liquid chromatographic analysis with diode-array detection of bradykinin, neuropeptide K, and substance P in human plasma.
|
pubmed:affiliation |
Department of Chemistry and Physics, Technikon Pretoria, South Africa.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|