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Comparative analysis of obesity-related cardiometabolic and renal biomarkers in human plasma and serum

Rajan, MR; Sotak, M; Barrenas, F; Shen, T; Borkowski, K; Ashton, NJ; Biorserud, C; ... Borgeson, E; + view all (2019) Comparative analysis of obesity-related cardiometabolic and renal biomarkers in human plasma and serum. Scientific Reports , 9 , Article 15385. 10.1038/s41598-019-51673-0. Green open access

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Abstract

The search for biomarkers associated with obesity-related diseases is ongoing, but it is not clear whether plasma and serum can be used interchangeably in this process. Here we used high-throughput screening to analyze 358 proteins and 76 lipids, selected because of their relevance to obesity-associated diseases, in plasma and serum from age- and sex-matched lean and obese humans. Most of the proteins/lipids had similar concentrations in plasma and serum, but a subset showed significant differences. Notably, a key marker of cardiovascular disease PAI-1 showed a difference in concentration between the obese and lean groups only in plasma. Furthermore, some biomarkers showed poor correlations between plasma and serum, including PCSK9, an important regulator of cholesterol homeostasis. Collectively, our results show that the choice of biofluid may impact study outcome when screening for obesity-related biomarkers and we identify several markers where this will be the case.

Type: Article
Title: Comparative analysis of obesity-related cardiometabolic and renal biomarkers in human plasma and serum
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/s41598-019-51673-0
Publisher version: https://doi.org/10.1038/s41598-019-51673-0
Language: English
Additional information: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Keywords: Biomarkers, Metabolic disorders, Translational immunology
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Neurodegenerative Diseases
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10089229
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