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  • Title: Association of Interleukin-1 and Inteleukin-1 Receptor Antagonist Gene Polymorphisms with Multiple Sclerosis in Azeri Population of Iran.
    Author: Asgharzadeh M, Jigheh ZA, Kafil HS, Farhoudi M, Oskouei DS, Khaki-Khatibi F, Fadaee M, Vegari A, Asgharzadeh V, Najafi-Ghalelou N, Poor BM, Rashedi J.
    Journal: Endocr Metab Immune Disord Drug Targets; 2020; 20(7):1110-1116. PubMed ID: 32148206.
    Abstract:
    BACKGROUND: Cytokines as important mediators have a critical role in appropriate immune responses, the irregular production of which can lead to Multiple Sclerosis (MS). Proinflammatory cytokine interleukin-1 (IL-1) triggers inflammatory responses. Function and production of the cytokine are influenced by IL-1 coding gene polymorphism and those antagonists gene polymorphism. OBJECTIVE: The aim of the present study was to evaluate the possible correlation between MS and IL-1 related alleles in Azeri population of Iran. METHODS: Variable number tandem repeats (VNTR) genotypes of 150 MS patients and 220 healthy non-relative controls were determined. RESULTS: In the healthy controls, genotype TT at IL-1A (-889) location was significantly higher than the MS patients (p=0.0001). However, a significant difference was not found between the two groups in genotypic/allelic frequency at IL- 1B+ 3953 location. Evaluation of the IL-1RA gene revealed that genotype 1/2, and genotype 1/3 were significantly higher in the healthy controls and MS patients, respectively. Our findings indicated that the consumption of fast-food in MS patients was significantly higher than controls (p= <0.05). Also, a considerable number of MS patients had inappropriate dieting behaviors such as not eating breakfast (p= 0.0001), and irregular eating habits (p= 0.0001). CONCLUSION: Polymorphisms of the IL-1B genes and common alleles of IL-1RA were not considered as risk factors for MS disease. However, genotype TT at IL-1A (-889) location and the rare allele of IL-1RA3 can be a potential risk factor for the disease. Furthermore, inappropriate dieting behaviors and consumption of fast-food can increase the risk of MS.
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