Intestinal Microbiota and Weight-Gain in Preterm Neonates

Area of Science:

• Microbiology
• Neonatology
• Pediatric Nutrition

Background:

• The gut microbiota plays a role in childhood growth and undernutrition.
• The gut microbiota is a potential therapeutic target for preventing growth impairment.
• Knowledge regarding the gut microbiota's impact on preterm infant growth is limited.

Purpose of the Study:

• To evaluate the relationship between early gut microbiota, growth, and development in preterm infants.
• To identify potential microbial targets for promoting growth in preterm infants.

Main Methods:

• Assessed levels of specific microorganisms using qPCR in fecal samples from 63 preterm newborns.
• Measured short-chain fatty acids via gas-chromatography in fecal samples.
• Determined infant weight gain during the first months of life.

Main Results:

• Statistical analyses revealed a significant influence of intestinal microbiota on infant weight gain.
• Specific microbial levels in early life were associated with weight gain by 1 month of age.
• Infant groups clustered by microbiota composition at 1 month showed differences in weight z-scores.

Conclusions:

• An association exists between gut microbiota composition and weight gain in preterm infants during early life.
• Potential microbial targets for enhancing growth and maturation in preterm infants were identified.