LC-ICP-MS method for the determination of "extractable copper" in serum.
Metallomics 12, 1348-1355 (2020)
Copper is an essential element for biological functions within humans and animals. There are several known diseases associated with Cu deficiency or overload, such as Menkes disease and Wilson disease, respectively. A common clinical method for determining extractable Cu levels in serum, which is thought to be potentially dangerous if in excess, is to subtract the value of tightly incorporated Cu in ceruloplasmin from total serum Cu. In this work, an automated sample preparation and liquid chromatography (LC) system was combined with inductively coupled plasma-mass spectrometry (ICP-MS) to determine bound Cu and extractable Cu in serum. This LC-ICP-MS method took 250 s for sample preparation and analysis, followed by a column recondition/system reset, thus, a 6 minute sample-to-sample time including sample preparation. The method was validated using serum collected from either control (Atp7b(+/-)) or Wilson disease rats (Atp7b(-/-)). The extractable Cu was found to be 4.0 +/- 2.3 mu M Cu in healthy control rats, but 2.1 +/- 0.6 mu M Cu in healthy Wilson rats, and 27 +/- 16 mu M Cu in diseased Wilson rats, respectively. In addition, the extractable Cu/bound Cu ratio was found to be 6.4 +/- 3.5%, 38 +/- 29%, and 34 +/- 22%, respectively. These results suggest that the developed method could be of diagnostic value for Wilson disease, and possibly other copper related diseases.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Wilson Disease Gene; Exchange Chromatography; Alzheimers-disease; Menkes Disease; Speciation; Plasma; Ceruloplasmin; Iron; Cholesterol; Diagnosis
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2020
Prepublished im Jahr
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
1756-5901
e-ISSN
1756-591X
ISBN
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Konferenztitel
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Konferenzband
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Band: 12,
Heft: 9,
Seiten: 1348-1355
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Royal Society of Chemistry (RSC)
Verlagsort
Thomas Graham House, Science Park, Milton Rd, Cambridge Cb4 0wf, Cambs, England
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0000-00-00
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Prüfer
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0000-00-00
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0000-00-00
Anmelder/Inhaber
weitere Inhaber
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Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30202 - Environmental Health
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Environmental Sciences
Enabling and Novel Technologies
PSP-Element(e)
G-504800-002
G-505200-003
Förderungen
Copyright
Erfassungsdatum
2020-11-10