The association of IL-18 gene promoter polymorphisms and the levels of serum IL-18 on the risk of multiple sclerosis.

Autor: Orhan G; Ankara Numune Hospital, Clinics of Neurology, Ankara, Turkey., Eruyar E; Ankara Numune Hospital, Clinics of Neurology, Ankara, Turkey., Mungan SÖ; Ankara Numune Hospital, Clinics of Neurology, Ankara, Turkey., Ak F; Ankara Numune Hospital, Clinics of Neurology, Ankara, Turkey., Karahalil B; Gazi University, Faculty of Pharmacy, Department of Toxicology, 06330 Ankara, Turkey. Electronic address: bensuka@gmail.com.
Jazyk: angličtina
Zdroj: Clinical neurology and neurosurgery [Clin Neurol Neurosurg] 2016 Jul; Vol. 146, pp. 96-101. Date of Electronic Publication: 2016 May 03.
DOI: 10.1016/j.clineuro.2016.04.027
Abstrakt: Objectives: Multiple sclerosis is an inflammatory condition of the central nervous system whose etiology is influenced by immunologic, genetic, and environmental factors. Aim of the present study was to determine if any relation exists between IL-18 -137C/G and -607C/A gene promoter polymorphisms on the individual susceptibility of multiple sclerosis and also to investigate the possible effect of IL-18 activity regarding this kind of polymorphism and MS.
Patients and Methods: 113 patients with clinically definite MS and 135 ethnically-matched controls were participated in this study. IL-18 -137C/G and -607C/A gene promoter polymorphisms were analyzed by Sequence Specific Polymerase Chain Reaction (SS-PCR), while levels of serum IL-18 were measured by Enzyme Linked Immunoassay Assay (ELISA) in patients with MS and healthy controls.
Results: Our results showed that the IL-18 -607AA genotype indicated 6 times higher risk in the development of MS (OR=6.883; 3.17-14.96; p<0.001). According to our findings, smoking seems to be an important confounding factor in MS patients with carrying IL-18 -607 AA and CA+AA genotypes. However, no meaningful association was found with IL-18 -137C/G gene promoter polymorphism.
Conclusion: In conclusion, we suggest that IL-18 -607C/A gene promoter polymorphism is a major genetic factor for determining individual susceptibility to MS, where smoking status also increases the risk of MS.
(Copyright © 2016 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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