Multiple sclerosis: association with the interleukin-1 gene family polymorphisms in the Turkish population

作者：Isik Nihal^*; Arman Ahmet; Canturk Ilknur Aydin; Gurkan Ajda Coker; Candan Fatma; Aktan Sule; Erzaim Nilufer; Duz Ozge Arici; Aydin Tugrul; Turkes Muzaffer; List Edward O

来源：International Journal of Neuroscience, 2013, 123(10): 711-718.

DOI：10.3109/00207454.2013.795563

• demyelinating disease
• interleukin-1
• cytokine
• genotype distribution

Background: Multiple Sclerosis (MS) is a neurodegenerative disease. It involves inflammation and demyelination. Since cytokines play an important role in the development of MS, genes encoding cytokines such as the Interleukin (IL)-1 family are candidate genes for MS susceptibility. Objective: To determine the relationship between IL-1 gene family and MS in the Turkish population. Methods: A total of 409 MS patients and 256 healthy controls were included in the study. IL-1A -889 (rs1800587), IL-1 RN variable number tandom repeat (VNTR), IL-1B -511 (rs 16944) and IL-1B +3953 (rs 1143634) polymorphisms were investigated from the genomic DNA, obtained via blood samples. Results: No association was found between IL-1A and IL-1RN polymorphisms and susceptibility to MS. However, we have found significantly decreased frequency of IL-1B -511 genotype (p = 0.004) in MS patients compared to controls. In addition, there was a significant association between IL-1B -511 (1/2) genotype and early onset MS (EOMS) (p = 0.0001). Conclusions: Individuals with the 2/2 genotype of IL-1B -511 have significantly decreased incidence of MS, suggesting a protective role for this genotype in the Turkish population. Additionally, IL-1B -511(1/2) genotype was determined as a possible risk factor for EOMS.

• 出版日期2013-10