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Interleukin-10 −1082 G/A polymorphism and risk of death or bronchopulmonary dysplasia in ventilated very low birth weight infants

IL‐10 is an anti‐inflammatory cytokine that may have a protective role in acute lung injury. IL‐10 expression is affected by a single‐nucleotide polymorphism (SNP) located at position −1082 (G to A). The A allele is associated with lower IL‐10 production. Low IL‐10 production has been linked to the...

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Published in:Pediatric pulmonology 2005-05, Vol.39 (5), p.426-432
Main Authors: Yanamandra, Krishna, Boggs, Peter, Loggins, John, Baier, R. John
Format: Article
Language:English
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Summary:IL‐10 is an anti‐inflammatory cytokine that may have a protective role in acute lung injury. IL‐10 expression is affected by a single‐nucleotide polymorphism (SNP) located at position −1082 (G to A). The A allele is associated with lower IL‐10 production. Low IL‐10 production has been linked to the development of BPD. Thus, the IL‐10 −1082 SNP may be a genetic risk factor for the development of BPD in the premature newborn. The IL‐10 −1082 SNP was determined in 294 (235 African American, 56 Caucasian, and 3 Hispanic) mechanically ventilated very low birth weight (VLBW) infants and compared to outcome (death and/or development of BPD). Differences in groups were analyzed using ANOVA (continuous variables) or chi square (proportions). The frequency of the A allele in our population was 0.62. Thirty‐nine (13.3%) infants were homozygous GG, 146 (49.7%) were heterozygous GA, and 109 (37.0%) were homozygous AA. There were no significant differences between genotype groups with respect to ethnic origin, gender, need for surfactant replacement therapy, and isolation of Ureaplasma urealyticum or Mycoplasma hominis from tracheal aspirates at birth. However, AA infants were slightly more mature and of greater birth weight than GA infants (26.9 ± 0.2 weeks vs. 26.3 ± 0.2 weeks, P 
ISSN:8755-6863
1099-0496
DOI:10.1002/ppul.20182