| Autor: |
Phulukdaree, Alisa, Khan, Sajidah, Ramkaran, Prithiksha, Govender, Rishalan, Moodley, Devapregasan, Chuturgoon, Anil A. |
| Předmět: |
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| Zdroj: |
Metabolic Syndrome & Related Disorders; Jun2013, Vol. 11 Issue 3, p205-209, 5p |
| Abstrakt: |
Background: Interleukin-6 (IL-6) is a proinflammatory cytokine involved in the pathogenesis of chronic inflammatory diseases such as coronary artery disease (CAD). The −174 IL-6 G/C promoter polymorphism influences mRNA levels and protein expression and is implicated in CAD. The Indian population in South Africa, unlike the black community, has a high prevalence of premature CAD. This polymorphism has not been fully explored in this population. The present study assessed the −174 IL-6 G/C polymorphism in young Indian patients with angiographically documented CAD and compared them with age- and gender-matched Indian and black control subjects. Methods: Polymorphic variants were assessed by polymerase chain reaction-restriction fragment length polymorphism, and IL-6 levels were measured using enzyme-linked immunosorbent assay (ELISA). Results: The −174 IL-6 C allele was found with a higher frequency (23%) in the total Indian group compared to 2% in the black participants [ P<0.0001, odds ratio (OR)=0.05, 95% confidence interval (CI) 0.018-0.14). The difference in frequency was more pronounced when Indian controls were compared to black controls (29% vs. 2%, respectively) ( P<0.0001, OR=0.05, 95% CI 0.02-0.17). A significant association between the −174 IL-6 G allele and CAD was found in Indian patients compared to Indian controls (84% in cases vs. 71% in Indian controls; P=0.043, OR=0.47 95% CI 0.23-0.95). Levels of IL-6 in circulation were higher in black controls (6.62±0.63 pg/mL) compared to Indian controls (2.51±0.57 pg/mL) and CAD patients (1.46±0.36 pg/mL) ( P<0.0001). Levels of IL-6 were higher in all groups with homozygous −174 IL-6 C alleles, but only significant in the healthy Indian control group (GG 3.73±0.94 pg/mL vs. GC/CC 0.89±0.5 pg/mL, P=0.0001). Conclusion: The presence of the IL-6 −174 G allele influences levels of IL-6 and increases the risk of CAD in South African Indians. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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