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A standardized prot...
A standardized protocol for comparable analysis of GSH/GSSG by UHPLC-ESI-MSMS for human plasma
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- Claeson, Anna-Sara, 1974- (author)
- Umeå universitet,Institutionen för psykologi
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- Gouveia-Figueira, Sandra C. (author)
- Swedish Metabolomics Centre (SMC), Umeå, Sweden
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- Stenlund, Hans (author)
- Swedish Metabolomics Centre (SMC), Umeå, Sweden
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- Johansson, Annika I. (author)
- Swedish Metabolomics Centre (SMC), Umeå, Sweden
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(creator_code:org_t)
- Elsevier, 2019
- 2019
- English.
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In: Journal of chromatography. B. - : Elsevier. - 1570-0232 .- 1873-376X. ; 1104, s. 67-72
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Variability in the levels of GSH and GSSG in plasma is suggested to derive from inadequate pre-processing methods. The aim of this study was to develop a protocol for comparable and reliable measurements of GSH/GSSG. Venous blood from 8 healthy individuals were collected and divided into 7 different pre-processing procedures. For three of the samples an extraction mixture was added after 0 (baseline), 4 and 8 min and for three of the samples the extraction mixture was added at different times during defrost. A worst case scenario where a sample was left in a cool box during 6 h was also included. The samples were analyzed with UHPLC-ESIMSMS. A large difference in the levels of GSH and GSSG were identified and it was clearly associated with the sample handling procedures. A sample left untreated for 4 min will have significantly reduced amount of GSH. Stability tests showed that the level of GSH was reduced after 3 months in -80 degrees C.
Subject headings
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Keyword
- GIutathione
- GSH
- GSSG
- Plasma
- Sample pre-processing
- UHPLC-ESI-MS
Publication and Content Type
- ref (subject category)
- art (subject category)
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