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Low levels of vitamin-D are associated with neuropathy and lymphoma among patients with Sjögren's syndrome.

Abstract：

BACKGROUND/PURPOSE:Primary Sjögren's syndrome (SS) is a chronic autoimmune disease primarily involving the exocrine glands. The clinical picture of SS ranges from exocrinopathy to systemic disease affecting the lung, kidney, liver, skin, musculockeletal and nervous systems. The morbidity of SS is mainly determined by extraglandular disease and increased prevalence of lymphoma. Environmental and hormonal factors, such as vitamin-D may play a role in the pathogenic process and disease expression. Thus, we aimed to evaluate levels of vitamin-D and their association with manifestations of SS. METHODS:Vitamin-D levels were determined in 176 primary SS patients and 163 matched healthy volunteers utilizing the LIAISON chemiluminescent immunoassays (DiaSorin-Italy). A correlation between vitamin-D levels and clinical and serological manifestations of SS was performed. RESULTS:Mean vitamin-D levels were comparable between SS patients and control 21.2 ± 9.4 ng/ml and 22.4 ± 10 ng/ml, respectively. Peripheral neuropathy was diagnosed in 23% of SS patients and associated with lower vitamin-D levels (18.6 ± 5.5 ng/ml vs. 22.6±8 ng/ml (p = 0.04)). Lymphoma was diagnosed in 4.3% of SS patients, who had lower levels of vitamin-D (13.2 ± 6.25 ng/ml), compared to SS patients without lymphoma (22 ± 8 ng/ml), (p = 0.03). Other clinical and serological manifestations did not correlate with vitamin-D status. CONCLUSIONS:In this study, low levels of vitamin-D correlated with the presence of peripheral neuropathy and lymphoma among SS patients. The link between vitamin-D and neuropathy or lymphoma was reported in other conditions, and may support a role for vitamin-D in the pathogenesis of these processes. Plausible beneficial effect for vitamin-D supplementation may thus be suggested.

journal_name

J Autoimmun

journal_title

Journal of autoimmunity

authors

Agmon-Levin N,Kivity S,Tzioufas AG,López Hoyos M,Rozman B,Efes I,Shapira Y,Shamis A,Amital H,Youinou P,Shoenfeld Y

doi

10.1016/j.jaut.2012.05.018

subject

Has Abstract

pub_date

2012-09-01 00:00:00

pages

234-9

issue

eissn

0896-8411

issn

1095-9157

pii

S0896-8411(12)00085-6

journal_volume

pub_type

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Low levels of vitamin-D are associated with neuropathy and lymphoma among patients with Sjögren's syndrome.