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TNF-238 polymorphism may predict bronchopulmonary dysplasia among preterm infants in the Egyptian population.
MedLine Citation:
PMID:  23359489     Owner:  NLM     Status:  Publisher    
Bronchopulmonary dysplasia (BPD) remains as a major and increasing burden in Egypt. RATIONALE: To determine whether alleles of TNFα-238G > A affect the risk of BPD or the severity of BPD in preterm infants in Egypt. STUDY DESIGN: We prospectively genotyped 220 premature neonates (birth weight <1,500 g and gestational age 26-32 weeks) for the -238 polymorphism, and assessed the clinical risk factors for BPD in our study populations. Infants with BPD were mechanically ventilated. RESULTS: Infants who developed BPD (n = 120) had a younger gestational age (31.0 ± 2.1 weeks vs. 34.3 ± 1.5 weeks) and lower birth weight (1,490 ± 360 g vs. 1,880 ± 520 g) than infants who did not develop BPD (n = 100). Results of antenatal steroid supplementation, surfactant therapy, or sepsis might affect the genetic modulation of BPD. The -238G > A polymorphism was associated with a twofold risk of BPD (OR = 2.86; 95% confidence interval, 1.35-3.83). Despite the dominance of the G allele in the Egyptian population, the -238A allele was more common among infants with BPD (23%) than among infants without BPD (15%). The A allele occurred less often in infants with mild BPD (9%) than in infants with severe (39%) or moderate (52%). The AA genotype occurred in 15% of cases but in none of the controls. CONCLUSION: The TNFα -238G > A polymorphism-particularly the presence of an A allele-should be evaluated as a biomarker to predict the clinical outcome of preterm infants with BPD in Egypt. Even the presence of one copy of this mutant allele appears to be sufficient to influence the severity of disease. Pediatr Pulmonol. © 2012 Wiley Periodicals, Inc.
Nasser A Elhawary; Mohammed T Tayeb; Shereen Abdel-Ghafar; Mona Rashad; Abdel-Aziz Alkhotani
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-28
Journal Detail:
Title:  Pediatric pulmonology     Volume:  -     ISSN:  1099-0496     ISO Abbreviation:  Pediatr. Pulmonol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8510590     Medline TA:  Pediatr Pulmonol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Faculty of Medicine, Department of Medical Genetics, Umm Al-Qura University, Makkah, Kingdom of Saudi Arabia; Faculty of Medicine, Medical Genetics Center, Ain Shams University, Cairo, Egypt.,
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