Modic changes and interleukin 1 gene locus polymorphisms in occupational cohort of middle-aged men
2009 (English)In: European spine journal, ISSN 0940-6719, E-ISSN 1432-0932, Vol. 18, no 12, 1963-1970 p.Article in journal (Refereed) Published
According to recent systematic reviews, Modic changes are associated with low-back pain. However, their pathophysiology remains largely unknown. A previous study of Northern Finnish males implicated that IL1A and MMP3 polymorphisms play a role in type II Modic changes. The purpose of the current study was to examine the association of IL1 cluster polymorphisms with Modic changes amongst middle-aged men in Southern Finland. The final study sample consisted of 108 men from three different occupations, who underwent magnetic resonance imaging (MRI) with a 0.1 T-scanner. Six single nucleotide polymorphisms (SNP) in the IL1 gene cluster (IL1A c.1-889C>T; IL1B c.3954C>T; IL1RN c.1812G>A; IL1RN c.1887G>C; IL1RN c.11100T>C; IL1RN c.1506G>A) were genotyped with the SNP-TRAP method or by allele-specific primer extension on modified microarray. In all, 45 subjects had Modic changes at one or more disc levels. The presence of the minor allele of IL1A (c.1-889C>T) was associated with these changes (any Modic change p = 0.031, type II changes p = 0.036). The carriers of the T-allele had a 2.5-fold risk of Modic change and the association was independent of the other IL1 gene cluster loci studied. In addition, a minor haplotype, with a frequency of 7.5% in the study population, including the minor alleles of IL1A c.1-889C>T, IL1RN c.1812G>A, and IL1RN c.1506G>A, was significantly associated with Modic changes. This observation is in accordance with the previous finding from a different geographical area, and thus confirms the importance of the IL1A gene in the pathophysiology of Modic changes.
Place, publisher, year, edition, pages
2009. Vol. 18, no 12, 1963-1970 p.
Modic changes, MRI, Genetic factors, Interleukin
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-124824DOI: 10.1007/s00586-009-1139-xISI: 000272360000019PubMedID: 19701653OAI: oai:DiVA.org:uu-124824DiVA: diva2:318031