Malnutrition, poor post-natal growth, intestinal dysbiosis and the developing lung

Mark A Underwood1, Satyan Lakshminrusimha2, Robin H Steinhorn3

  • 1Department of Pediatrics, UC Davis School of Medicine, Sacramento, CA, USA. munderwood@ucdavis.edu.

Insights

Extremely preterm infants often experience poor growth, gut bacteria imbalance (intestinal dysbiosis), and lung issues (bronchopulmonary dysplasia). This review explores if these conditions are interconnected, potentially impacting long-term infant health.

Area of Science:

  • Neonatal Medicine
  • Pediatric Gastroenterology
  • Respiratory Medicine

Background:

  • Extremely preterm infants face significant health challenges, including poor post-natal growth, intestinal dysbiosis, and bronchopulmonary dysplasia.
  • These conditions are independently linked to severe long-term complications in survivors.

Purpose of the Study:

  • To investigate the interrelationship between poor post-natal growth, intestinal dysbiosis, and bronchopulmonary dysplasia in extremely preterm infants.
  • To address challenges in studying this hypothesis, such as differentiating malnutrition from poor growth and defining a normal neonatal gut microbiota.

Main Methods:

  • This review synthesizes existing literature and research findings.
  • It critically examines the evidence supporting the interconnectedness of the three conditions.

Main Results:

  • The review hypothesizes that poor post-natal growth, intestinal dysbiosis, and bronchopulmonary dysplasia are interrelated in extremely preterm infants.
  • Challenges exist in defining normal growth and microbiota in this population.

Conclusions:

  • If the hypothesis is supported, further research is warranted.
  • Investigating interventions to correct intestinal dysbiosis may reduce growth restriction and bronchopulmonary dysplasia in extremely preterm infants.

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