Volume 22, Issue 1 pp. 38-46
Original Article

Role of amino acids in rheumatoid arthritis studied by metabolomics

Min He

Min He

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

Sino-Dutch Center for Preventive and Personalized Medicine, Leiden University, Leiden, the Netherlands

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Amy C. Harms

Amy C. Harms

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

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Eduard van Wijk

Corresponding Author

Eduard van Wijk

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

Sino-Dutch Center for Preventive and Personalized Medicine, Leiden University, Leiden, the Netherlands

Correspondence: Dr. Eduard van Wijk, Division of Analytical Biosciences, LACDR, Sino-Dutch Centre for Preventive and Personalized Medicine, Leiden University, 2333 CC Leiden, The Netherlands. Email: [email protected]Search for more papers by this author
Mei Wang

Mei Wang

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

Sino-Dutch Center for Preventive and Personalized Medicine, Leiden University, Leiden, the Netherlands

SU Biomedicine, Zeist, the Netherlands

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Ruud Berger

Ruud Berger

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

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Slavik Koval

Slavik Koval

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

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Thomas Hankemeier

Thomas Hankemeier

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

Sino-Dutch Center for Preventive and Personalized Medicine, Leiden University, Leiden, the Netherlands

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Jan van der Greef

Jan van der Greef

Analytical BioSciences, LACDR, Leiden University, Leiden, the Netherlands

Sino-Dutch Center for Preventive and Personalized Medicine, Leiden University, Leiden, the Netherlands

TNO, Zeist, the Netherlands

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First published: 22 March 2017
Citations: 32

Abstract

Background

Rheumatoid arthritis (RA) is a complex, chronic autoimmune disease characterized by various inflammatory symptoms, including joint swelling, joint pain, and both structural and functional joint damage. The most commonly used animal model for studying RA is mice with collagen-induced arthritis (CIA); the wide use of this model is due primarily to many similarities with RA in human patients. Metabolomics is used increasingly in biological studies for diagnosing disease and for predicting and evaluating drug interventions, as a large number of disease-associated metabolites can be analyzed and interpreted from a biological perspective.

Aim

To profile free amino acids and their biogenic metabolites in CIA mice plasma.

Method

Ultra-high-performance liquid chromatography/tandem mass spectrometry coupled with multiple reaction monitoring (MRM) was used for metabolomics study.

Results

Profile of 45 amine metabolites, including free amino acids and their biogenic metabolites in plasma was obtained from CIA mice. We found that the plasma levels of 20 amine metabolites were significantly decreased in the CIA group.

Conclusion

The results suggest that a disordered amine response is linked to RA-associated muscle wasting and energy expenditure.

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