Urine bombesin-like peptide elevation precedes clinical evidence of bronchopulmonary dysplasia.

Abstract:

:Bronchopulmonary dysplasia (BPD) is a chronic lung disease of very low birth weight infants, associated with oxygen therapy, barotrauma, and/or infections. Improved medical care has led to a paradoxically increased incidence of BPD due to greater infant survival. Early prediction of BPD has proven challenging. Increased pulmonary neuroendocrine cells containing bombesin-like peptide immunoreactivity occur in infants with BPD. We hypothesized that elevated urine bombesin-like peptide levels precede BPD. One hundred thirty-two infants, 28-weeks gestation or less, were studied. Urine bombesin-like peptide levels, determined by radioimmunoassay, were normalized for creatinine. BPD was defined as oxygen dependence at 36 weeks postmenstrual age. A first urine bombesin-like peptide level greater than 20,000 pg/mg creatinine (12,500 fmol/mg) between postnatal days 1-4 occurred among 54% of the infants who later developed BPD (p < or = 0.001), versus 10% among non-BPD infants (specificity 90%). Multivariable logistic regression analyses revealed that elevated urine bombesin-like peptide levels are associated with BPD (odds ratio 9.9, 95% confidence interval: 3.4, 29) (p < or = 0.001) after adjusting for all confounding factors. Thus, elevated bombesin-like peptide levels in these infants at 1-4 days after birth are associated with a 10-fold increased risk of developing BPD. Utilizing urine bombesin-like peptide for screening might permit early therapeutic interventions to reduce disease progression and could provide a target for new preventive therapies.

authors

Cullen A,Van Marter LJ,Allred EN,Moore M,Parad RB,Sunday ME

doi

10.1164/ajrccm.165.8.2108044

keywords:

subject

Has Abstract

pub_date

2002-04-15 00:00:00

pages

1093-7

issue

8

eissn

1073-449X

issn

1535-4970

journal_volume

165

pub_type

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