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Altered metabolites in newborns with persistent pulmonary hypertension
Journal article   Open access   Peer reviewed

Altered metabolites in newborns with persistent pulmonary hypertension

Martina A Steurer, Scott Oltman, Rebecca J Baer, Sky Feuer, Liang Liang, Randi A Paynter, Larry Rand, Kelli K Ryckman, Roberta L Keller and Laura L Jelliffe-Pawlowski
Pediatric research, Vol.84(2), pp.272-278
08/2018
DOI: 10.1038/s41390-018-0023-y
PMCID: PMC7691760
PMID: 29895840
url
https://doi.org/10.1038/s41390-018-0023-yView
Published (Version of record) Open Access

Abstract

There is an emerging evidence that pulmonary hypertension is associated with amino acid, carnitine, and thyroid hormone aberrations. We aimed to characterize metabolic profiles measured by the newborn screen (NBS) in infants with persistent pulmonary hypertension of the newborn (PPHN) METHODS: Nested case-control study from population-based database. Cases were infants with ICD-9 code for PPHN receiving mechanical ventilation. Controls receiving mechanical ventilation were matched 2:1 for gestational age, sex, birth weight, parenteral nutrition administration, and age at NBS collection. Infants were divided into derivation and validation datasets. A multivariable logistic regression model was derived from candidate metabolites, and the area under the receiver operator characteristic curve (AUROC) was generated from the validation dataset. We identified 1076 cases and 2152 controls. Four metabolites remained in the final model. Ornithine (OR 0.32, CI 0.26-0.41), tyrosine (OR 0.48, CI 0.40-0.58), and TSH 0.50 (0.45-0.55) were associated with decreased odds of PPHN; phenylalanine was associated with increased odds of PPHN (OR 4.74, CI 3.25-6.90). The AUROC was 0.772 (CI 0.737-0.807). In a large, population-based dataset, infants with PPHN have distinct, early metabolic profiles. These data provide insight into the pathophysiology of PPHN, identifying potential therapeutic targets and novel biomarkers to assess the response.
Multivariate Analysis Ornithine - blood Area Under Curve Humans Logistic Models Male Treatment Outcome Tyrosine - blood Neonatal Screening Gestational Age Respiration, Artificial Case-Control Studies Birth Weight Female Phenylalanine - blood Persistent Fetal Circulation Syndrome - blood Infant, Newborn Persistent Fetal Circulation Syndrome - physiopathology Thyrotropin - blood

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