Association of IL1B and IL1RN gene polymorphisms with the predisposition to hemorrhagic fever with renal syndrome and with the specific features of its course



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Abstract

-511C > T and 3953C > T polymorphic loci of the IL1B gene and VNTR polymorphism in the second intron of the IL1RN gene were analyzed in 335 patients with hemorrhagic fever with renal syndrome (HFRS) and 300 seronegative donors. As compared with the controls, the patients with HFRS were significantly less frequently found to have IL1RN*I/*II genotype (p = 0.03; OR = 0.69; 95% CI 0.49-0.96) and combinations of I/II-C/T-C/C and I/II-C/ T-C/T (IL1RN*VNTR - IL1B*-511C > T - IL1B*395C > T) genotypes (p = 0.03; OR = 0.58; 95%CI 0.36-0.95 and (p = 0.008; OR = 0.53; 95% CI 0.32-0.87, respectively). IL1B*C/*T genotype at the locus -511C > T of the IL1B gene (p = 0.04; OR = 1.77; 95% CI 1.02-3.09) and combinations of C/T-I/I (IL1B*-511C > T - IL1RN*VNTR) genotypes were predominant in patients with severe HFRS (p = 0.002; OR = 2.44; 95% CI 1.38-4.29). Furthermore, the carriers of IL1B*C/*T genotype at the locus -511C > T of the IL1B gene and combinations of C/T-I/I (IL1B*-511C > T - IL1RN*VNTR) genotypes were at higher risk for infectious-toxic shock (p = 0.03; OR = 2.78; 95% CI 1.10-7.38 and (p = 0.02; OR = 2.67; 95%CI 1.15-6.13, respectively). The likelihood of disseminated intravascular coagulation was higher in individuals with a combination of T/T-C/T genotypes at the polymorphic loci -511C > T, 3953C > T of the IL1B gene (p = 0.009; OR = 6.4; 95% CI 1.45-21.3). The performed study confirms the assumption that the polymorphisms of -511C > T and 3953C > T of the IL1B and VNTR polymorphism of IL1RN gene has impact on predisposition to HFRS and the pattern of its course.

About the authors

D Kh Khunafina

Tamara Aleksandrovna Khabelova

Email: thabelova@mail.ru

O I Kutuev

D Kh Khunafina

Bashkir State Medical University, Russian Agency for Health Care

Bashkir State Medical University, Russian Agency for Health Care

T A Khabelova

Bashkir State Medical University, Russian Agency for Health Care

Bashkir State Medical University, Russian Agency for Health Care

O I Kutuyev

Bashkir State Medical University, Russian Agency for Health Care

Bashkir State Medical University, Russian Agency for Health Care

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