Association of interleukin-6 promoter variant with bone mineral density in pre-menopausal women

Hye Won Chung, Jeong Sun Seo, Sung Eun Hur, Hyung Lae Kim, Jun Yeon Kim, Ji Hyun Jung, Lyoung Hyo Kim, Byung Lae Park, Hyoung Doo Shin

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68 Scopus citations


Interleukin-6 (IL6) has many roles essential to the regulation of the immune response, hematopoiesis, and bone resorption. Three single-nucleotide polymorphisms (SNP) in the IL6 promoter region were genotyped by the single-base extension method. The frequencies of each SNP were 0.002 (IL6-597 G → A), 0.27 (IL6-572 G → C), and 0.002 (IL6-174 G → C) in a Korean population (n = 1,082). IL6-597 G → A and IL6-174 G → C were totally linked together (d2 = 1) and showed very low allele frequencies (0.002), which are common in Caucasians. On the other hand, the frequency of the IL6-572 G → C*C allele was much higher (0.27) than that in Caucasian populations (<0.07). One of the IL6 promoter SNPs, viz., IL6-572 G → C, showed significant associations with bone mineral density (BMD), i.e., the C allele was associated with increased BMD (P=0.02, co-dominant model; P=0.007, dominant model). The mean BMD was highest in homozygous C individuals (0.67 ± 0.15), lowest in homozygous G individuals (0.58 ± 0.19), and intermediate in heterozygotes (0.64 ± 0.21). In the present study, we describe a variant in the IL6 promoter region that shows positive association with higher BMD in a gene-dose-dependent manner in pre-menopausal women.

Original languageEnglish
Pages (from-to)243-248
Number of pages6
JournalJournal of Human Genetics
Issue number5
StatePublished - 2003


  • BMD
  • Interleukin6 promoter variant
  • Osteoporosis
  • Pre-menopausal women


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