Na+ deposition in the fibrotic skin of systemic sclerosis patients detected by 23Na-magnetic resonance imaging

Kopp C, Beyer C, Linz P, Dahlmann A, Hammon M, Jantsch J, Neubert P, Rosenhauer D, Mueller DN, Eckardt KU, Schett G, Luft FC, Uder M, Distler J, Titze J, Cavallaro AJ (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Rheumatology Oxford University Press

Book Volume: 56

Pages Range: 674

Journal Issue: 4

DOI: 10.1093/rheumatology/kex149

Abstract

Skin fibrosis is the predominant feature of SSc and arises from excessive extracellular matrix deposition. Glycosaminoglycans are macromolecules of the extracellular matrix, which facilitate Na(+) accumulation in the skin. We used (23)Na-MRI to quantify Na(+) in skin. We hypothesized that skin Na(+) might accumulate in SSc and might be a biomarker for skin fibrosis.In this observational case-control study, skin Na(+) was determined by (23)Na-MRI using a Na(+) volume coil in 12 patients with diffuse cutaneous SSc and in 21 control subjects. We assessed skin fibrosis by the modified Rodnan skin score prior to (23)Na-MRI and on follow-up 12 months later.(23)Na-MRI demonstrated increased Na(+) in the fibrotic skin of SSc patients compared with skin from controls [mean (sd): 27.2 (5.6) vs 21.4 (5.3) mmol/l, P < 0.01]. Na(+) content was higher in fibrotic than in non-fibrotic SSc skin [26.2 (4.8) vs 19.2 (3.4) mmol/l, P < 0.01]. Furthermore, skin Na(+) amount was correlated with changes in follow-up modified Rodnan skin score (R(2) = 0.68).(23)Na-MRI detected increased Na(+) in the fibrotic SSc skin; high Na(+) content was associated with progressive skin disease. Our findings provide the first evidence that (23)Na-MRI might be a promising tool to assess skin Na(+) and thereby predict progression of skin fibrosis in SSc.

Authors with CRIS profile

Christian Beyer Department of Medicine 3 – Rheumatology and Immunology Peter Linz Institute of Radiology Anke Dahlmann Department of Medicine 4 – Nephrology and Hypertension Matthias Hammon Institute of Radiology Kai-Uwe Eckardt Department of Medicine 4 – Nephrology and Hypertension Georg Schett Lehrstuhl für Innere Medizin III Michael Uder Lehrstuhl für Diagnostische Radiologie Jörg Distler Professur für Molekulare Mechanismen der Organfibrose Alexander Josef Cavallaro Institute of Radiology

Involved external institutions

Universität Regensburg DE Germany (DE) Experimental and Clinical Research Center (ECRC) DE Germany (DE) Vanderbilt University US United States (USA) (US)

How to cite

APA:

Kopp, C., Beyer, C., Linz, P., Dahlmann, A., Hammon, M., Jantsch, J.,... Cavallaro, A.J. (2017). Na+ deposition in the fibrotic skin of systemic sclerosis patients detected by 23Na-magnetic resonance imaging. Rheumatology, 56(4), 674. https://doi.org/10.1093/rheumatology/kex149

MLA:

Kopp, Christoph, et al. "Na+ deposition in the fibrotic skin of systemic sclerosis patients detected by 23Na-magnetic resonance imaging." Rheumatology 56.4 (2017): 674.

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