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Interleukin-6-174-genotype, sepsis and cerebral injury in very low birth weight infants

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.

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Abbreviations

IL-6:

interleukin 6

IVH:

intraventricular hemorrhage

PVL:

periventricular leukomalcia

VLBW:

very low birth weight

References

  1. 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.

    Article  Google Scholar 

  2. 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.

    Article  Google Scholar 

  3. 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.

    Article  Google Scholar 

  4. 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.

    CAS  Google Scholar 

  5. 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.

    Article  CAS  Google Scholar 

  6. 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.

    Article  CAS  Google Scholar 

  7. 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.

    Article  CAS  Google Scholar 

  8. 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.

    Article  CAS  Google Scholar 

  9. 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.

    Article  CAS  Google Scholar 

Download references

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.

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Correspondence to W Göpel.

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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

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