Oncotarget

Meta-Analysis:

Serum levels of adipokines and cytokines in psoriasis patients: a systematic review and meta-analysis

Fan Bai, Wen Zheng, Yan Dong, Juan Wang, Malgorzata A. Garstka, Ruilian Li, Jingang An and Huiqun Ma _

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Oncotarget. 2018; 9:1266-1278. https://doi.org/10.18632/oncotarget.22260

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Abstract

Fan Bai1, Wen Zheng1, Yan Dong1, Juan Wang1, Malgorzata A. Garstka1, Ruilian Li1, Jingang An1 and Huiqun Ma1

1The Second Affiliated Hospital of Xi'an Jiaotong University, Xi’an, China

Correspondence to:

Huiqun Ma, email: [email protected]

Keywords: psoriasis, serum, adipokine, cytokine, meta-analysis

Received: April 27, 2017     Accepted: October 04, 2017     Published: November 01, 2017

ABSTRACT

Purpose: To evaluate the association of serum levels of adipokines and cytokines with psoriasis.

Materials and Methods: A comprehensive literature search was performed in PubMed, ScienceDirect and Web of Science for the available relevant studies published before December 1, 2016. Differences in serum marker levels between patients and controls were pooled as standardized mean differences (SMDs) with 95% confidence interval to combine the effect estimations. We also conducted stratified analysis, meta-regression analysis and sensitivity analysis.

Results: Sixty-three studies containing 2876 psoriasis patients and 2237 healthy controls were included in this meta-analysis. The pooled serum levels of TNF-α, IFN-γ, IL-2, IL-6, IL-8, IL-18, IL-22, chemerin, lipocalin-2, resistin, sE-selectin, fibrinogen and C3 were higher in psoriasis patients compared with healthy controls (all P < 0.05). In contrast, adiponectin levels were lower. Serum levels of IL-1β, IL-4, IL-10, IL-12, IL-17, IL-21, IL-23, visfatin and omentin were not significantly different between psoriasis patients and controls (all P > 0.05). However, increased serum levels of IL-17 correlated with psoriasis in men. For other biomarkers, age, gender and psoriasis area and severity index did not explain the differences in effect size between the studies.

Conclusions: Serum levels of TNF-α, IFN-γ, IL-2, IL-6, IL-8, IL-18, IL-22, chemerin, lipocalin-2, resistin, sE-selectin, fibrinogen, complement 3, and adiponectin correlate with psoriasis and can be used as potential biomarkers for psoriasis and response to the treatment. Future studies are needed to identify additional players involved in the pathogenesis of psoriasis and to fully decipher the underlying mechanism.


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