Abstract
We investigated the association between the interleukin 6 (IL-6)-174-genotype and unfavorable outcomes in preterm infants since it has been reported that the IL-6-174GG-genotype is associated with increased susceptibility to sepsis, and the IL-6-174CC-genotype is more common in preterm infants with severe intraventricular hemorrhage (IVH). We studied 1206 preterm infants with a birth weight below 1500 g. In contrast to previously published data, the frequency of IVH grade IV, periventricular leukomalacia, ventricular-peritoneal-shunting or death was not different between infants with different IL-6-genotypes: IL-6-174GG (n=430) 8%, IL-6-174GC (n=605) 9% and IL-6-174CC (n=167) 12% (P=0.2 for IL-6-174CC vs GG+GC). Furthermore, we were not able to confirm previously reported association between sepsis and the IL-6-174GG-genotype. Blood-culture-proven sepsis occurred in 19% of IL-6-174GG-carriers (n=157), 26% of IL-6-174GC-carriers (n=193) and 27% of infants carrying the IL-6-174CC-genotype (n=67). We were not able to confirm previously reported associations between sepsis, cerebral injury and the IL-6-174-genotype in VLBW-infants.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 6 digital issues and online access to articles
$119.00 per year
only $19.83 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
Abbreviations
- IL-6:
-
interleukin 6
- IVH:
-
intraventricular hemorrhage
- PVL:
-
periventricular leukomalcia
- VLBW:
-
very low birth weight
References
Harding D, Dhamrait S, Millar A, Humphries S, Marlow N, Whitelaw A et al. Is interleukin-6-174 genotype associated with the development of septicemia in preterm infants? Pediatrics 2003; 112: 800–803.
Ahrens P, Kattner W, Köhler B, Härtel C, Seidenberg J, Segerer H et al. Mutations of genes involved in the innate immune system as predictors of sepsis in very low birth weight infants. Pediatr Res 2004; 55: 652–656.
Harding DR, Dhamrait S, Whitelaw A, Humphries SE, Marlow N, Montgomery HE . Does interleukin6 genotype influence cerebral injury or developmental progress after preterm birth? Pediatrics 2004; 114: 941–947.
Kilpinen S, Hulkkonen J, Wang XY, Hurme M . The promoter polymorphism of the interleukin-6 gene regulates interleukin-6 production in neonates but not in adults. Eur Cytokine Network 2001; 12: 62–68.
Endler G, Marsik C, Joukhadar C, Marculescu R, Mayr F, Mannhalter C et al. The interleukin-6 G(-174)C promoter polymorphism does not determine plasma interleukin-6 concentrations in experimental endotoxemia in humans. Clin Chem 2004; 50: 195–200.
Fishman D, Faulds G, Jeffery R, Mohamed-Ali V, Yudkin JS, Humphries S et al. The effect of novel polymorphisms in the interleukin-6 (IL-6) gene on IL-6 transcription and plasma IL-6 levels, and an association with systemic-onset juvenile chronic arthritis. J Clin Invest 1998; 102: 1369–1376.
Bennermo M, Held C, Stemme S, Ericsson CG, Silveira A, Green F et al. Genetic predisposition of the interleukin-6 response to inflammation: implications for a variety of major diseases? Clin Chem 2004; 50: 2136–2140.
Treszl A, Kocsis I, Szathmari M, Schuler A, Heninger E, Tulassay T et al. Genetic variants of TNF-alpha, IL-1beta, IL-4 receptor-alpha-chain, IL-6 and IL-10 genes are not risk factors for sepsis in low-birth-weight infants. Biol Neonate 2003; 83: 241–245.
Sutherland AM, Walley KR, Manocha S, Russell JA . The association of interleukin 6 haplotype clades with mortality in critically ill adults. Arch Intern Med 2005; 165: 75–82.
Acknowledgements
The authors thank Anja Sewe and Sabine Ziesenitz for excellent laboratory assistance, Birgit Roenspiess and Anne Hoegemann for skillful data collection, all doctors and nurses of the participating hospitals, and especially all infants and their parents for their support. This work was supported by the Deutsche Forschungsgemeinschaft, Grant-no. Go955/1-3.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Göpel, W., Härtel, C., Ahrens, P. et al. Interleukin-6-174-genotype, sepsis and cerebral injury in very low birth weight infants. Genes Immun 7, 65–68 (2006). https://doi.org/10.1038/sj.gene.6364264
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.gene.6364264
Keywords
This article is cited by
-
Association between innate immunity gene polymorphisms and neonatal sepsis development: a systematic review and meta-analysis
World Journal of Pediatrics (2022)
-
The association between interleukin-6 gene -174G/C single nucleotide polymorphism and sepsis: an updated meta-analysis with trial sequential analysis
BMC Medical Genetics (2019)
-
The significance of polymorphisms in genes encoding Il-1β, Il-6, TNFα, and Il-1RN in the pathogenesis of intraventricular hemorrhage in preterm infants
Child's Nervous System (2017)
-
Role of selected cytokines in the etiopathogenesis of intraventricular hemorrhage in preterm newborns
Child's Nervous System (2016)
-
Infantile posthemorrhagic hydrocephalus
Child's Nervous System (2011)