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  • Title: Association of interleukin-6, interleukin-12, and interleukin-10 gene polymorphisms with essential hypertension in Tatars from Russia.
    Author: Timasheva YR, Nasibullin TR, Zakirova AN, Mustafina OE.
    Journal: Biochem Genet; 2008 Feb; 46(1-2):64-74. PubMed ID: 18163209.
    Abstract:
    Essential hypertension is a common disease with fatal clinical complications. Epidemiological and family studies have confirmed the role of genetic predisposition in its development. Hypertensive patients have been shown to have an altered profile of pro- and anti-inflammatory cytokines. The aim of our investigation was to reveal the association of interleukin-6, interleukin-12, and interleukin-10 gene polymorphisms with essential hypertension and its clinical complications in a Tatar ethnic group from Bashkortostan, Russia. The study involved 362 hypertensive patients and 244 healthy subjects from this Tatar ethnic group (Bashkortostan, Russia). DNA was isolated from whole venous blood using phenol-chloroform extraction by the standard method. IL6 -572 G/C, IL12B 1159 C/A, and IL10 -627 C/A genotypes were typed using polymerase chain reaction followed by restriction enzyme digestion. We found that the IL10 -627 *C/*C genotype was associated with decreased risk of hypertension (OR = 0.64, P = 0.035). IL6 genotypes and allele distribution did not differ significantly between subjects with and without hypertension, but the IL6 -572 *G/*G genotype frequency was found to be significantly higher among those patients who had stroke, compared with normotensive control subjects (P = 0.036). Carriers of the IL12B 1159 *A/*A genotype had a lower risk of stroke (OR = 0.38, P = 0.028). Our study has shown the association between IL10 -627 C/A polymorphism and essential hypertension in the Tatar ethnic group from Bashkortostan, Russia. The IL10 -627*C/*C genotype was found to be protective against hypertension. We also demonstrated that hypertensive patients with the IL12B *A/*A and IL6 *G/*G genotypes had increased risk of stroke. Our results suggest a role for cytokines in cardiovascular disease development in the Tatar ethnic group, but further investigation is needed.
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