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Publication year
2006Source
Pediatric Research, 60, 5, (2006), pp. 607-612ISSN
Publication type
Article / Letter to editor

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Organization
Paediatrics
Journal title
Pediatric Research
Volume
vol. 60
Issue
iss. 5
Page start
p. 607
Page end
p. 612
Subject
IGMD 3: Genomic disorders and inherited multi-system disorders; IGMD 4: Glycostation disorders; IGMD 8: Mitochondrial medicine; UMCN 5.1: Genetic defects of metabolismAbstract
Bone disease is an important complication among very low birth weight (VLBW, <1500 g) infants. In adults, osteoporosis is associated with polymorphisms of vitamin D receptor (VDR), estrogen receptor (ER), and collagen Ialpha1 (COLIA1) genes. However, limited information is available regarding the role of these polymorphisms in bone disease in premature infants. We have investigated the possible association between bone disease and the allelic polymorphisms of these three genes in 65 VLBW infants. Twenty infants (30.8%) were diagnosed with bone disease based on high activity of bone formation (serum alkaline phosphatase and osteocalcin), bone resorption (urinary excretion of calcium and pyridinium crosslink) markers, and positive radiologic signs. Statistically significant correlation between thymine-adenine repeat [(TA)(n)] allelic variant of ER gene and bone disease was observed. Infants without bone disorder more often carried a high number of repeats [(TA)(n) >18] [odds ratio (OR): 0.17, 95% confidence interval (CI): 0.05-0.55]. A low number of repeats [(TA)(n) <19] was found more frequently in infants suffering from bone disease (OR: 6.00, 95% CI: 1.77-20.31). Significant interaction (p = 0.009) between VDR and COLIA1 genotypes was observed. In a logistic regression model, bone disorder of preterms significantly correlated with male gender (p = 0.002), lower gestational age (p = 0.015), homozygous allelic variants of high number of (TA)(n) repeats (p = 0.006), and interaction between VDR and COLIA1 genotype (p = 0.009).
This item appears in the following Collection(s)
- Academic publications [205104]
- Electronic publications [103316]
- Faculty of Medical Sciences [81055]
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