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Leptin and visfatin serum levels in non-diabetic ankylosing spondylitis patients undergoing TNF-α antagonist therapy.

Abstract：

OBJECTIVES:This paper aims to determine whether disease activity, systemic inflammation and metabolic syndrome are potential determinants of circulating leptin and visfatin levels in ankylosing spondylitis (AS) patients undergoing TNF-α antagonist therapy. We also assessed whether the infusion of infliximab may alter circulating leptin and visfatin concentrations in these patients. METHODS:We investigated leptin and visfatin serum concentrations in a series of 30 non-diabetic AS patients without history of cardiovascular (CV) events that were treated with the TNF-α antagonist infliximab, immediately prior to an infliximab infusion. Leptin and visfatin levels were also determined immediately after administration of an infliximab dose. RESULTS:Significant differences in leptin concentrations between men (8.85±5.31 ng/ml) and women (18.96±9.72 ng/ml) were observed (p=0.001). A significant correlation between visfatin concentrations and insulin resistance (HOMA at the time of the study) was found (r= 0.493; p=0.009). Circulating leptin and visfatin concentrations did not correlate with disease duration, erythrocyte sedimentation rate, C-reactive protein, BASDAI and VAS at the time of the study and adiponectin and resistin levels prior to infliximab infusion. Likewise, no differences in leptin and visfatin concentrations were observed when patients with a history of anterior uveitis or presence of syndesmophytes were compared with the remaining patients who did not exhibit these features. Leptin and visfatin levels did not change upon infliximab administration. CONCLUSIONS:The present study indicates that in non-diabetic patients with AS on treatment with infliximab leptin and visfatin serum levels do not correlate with disease activity or systemic inflammation. Nevertheless, visfatin concentration correlates with insulin resistance.

journal_name

Clin Exp Rheumatol

journal_title

Clinical and experimental rheumatology

authors

Miranda-Filloy JA,López-Mejias R,Genre F,Carnero-López B,Ochoa R,Diaz de Terán T,González-Juanatey C,Blanco R,Llorca J,González-Gay MA

subject

Has Abstract

pub_date

2013-07-01 00:00:00

pages

538-45

issue

eissn

0392-856X

issn

1593-098X

pii

6442

journal_volume

pub_type

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Leptin and visfatin serum levels in non-diabetic ankylosing spondylitis patients undergoing TNF-α antagonist therapy.