Journal
JOURNAL OF DERMATOLOGY
Volume 42, Issue 5, Pages 461-466Publisher
WILEY
DOI: 10.1111/1346-8138.12824
Keywords
omentin; pulmonary arterial hypertension; systemic sclerosis; vascular inflammation; vasodilation
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Funding
- Ministry of Health, Labor and Welfare of Japan
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Adipokines have been shown to be potentially involved in various pathological processes of systemic sclerosis (SSc), including inflammation, vasculopathy and fibrosis, through their pleiotropic effects. Omentin is a member of the adipokines, and has a protective effect against vascular inflammation and pathological remodeling leading to atherosclerosis as well as a vasodilatory effect. To assess the potential role of omentin in the development of SSc, we determined serum omentin levels by enzyme-linked immunosorbent assay in 66 SSc and 21 control subjects and evaluated their clinical correlation. Serum omentin levels were significantly decreased in diffuse cutaneous SSc patients compared with limited cutaneous SSc patients, while comparable between total SSc patients and healthy controls. In diffuse cutaneous (dc)SSc, patients with a disease duration of 5years or less had serum omentin levels significantly lower than those with a disease duration of more than 5years. In total SSc, serum omentin levels were significantly higher in patients with elevated right ventricular systolic pressure than in the others, while serum omentin levels did not correlate with fibrotic and systemic inflammatory parameters. These results suggest that a loss of omentin-dependent protection against vascular inflammation and remodeling may be related to pathological vascular events of early dcSSc. The elevation of serum omentin levels may serve as a marker of vascular involvement leading to pulmonary arterial hypertension in SSc, which is possibly due to the compensatory induction of omentin against the increased pulmonary vascular tone.
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