Breast-fed infants have higher leptin values than formula-fed infants in the first four months of life
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F Savino1, G E Nanni, S Maccario
1Dipartimento di Scienze Pediatriche e dell'Adolescenza, Ospedale Infantile Regina Margherita, Università di Torino, Italy. francesco.savino@unito.it
Insights
Breastfed infants have higher leptin levels than formula-fed infants in early life. This difference in leptin, a hormone regulating metabolism, may impact long-term health outcomes.
Area of Science:
- Pediatrics
- Endocrinology
- Nutrition Science
Background:
- Leptin is a crucial hormone found in breast milk, regulating appetite and energy balance.
- Understanding leptin's role in infant development is vital for long-term health.
- Early life nutrition significantly influences metabolic programming.
Purpose of the Study:
- To determine if serum leptin concentrations differ between breast-fed (BF) and formula-fed (FF) infants.
- To investigate the impact of feeding type on infant leptin levels during the initial months of life.
Main Methods:
- Serum leptin levels were measured using radioimmunoassay in 51 infants (25 BF, 26 FF).
- Anthropometric measurements and body mass index were assessed.
- Infants were studied at an average age of 62.8 ± 30 days.
Main Results:
- Exclusively breastfed infants exhibited significantly higher serum leptin levels (7.1 ± 10.4 ng/ml) compared to exclusively formula-fed infants (3.7 ± 3.87 ng/ml).
- Leptin levels were also higher in female infants (6.9 ± 9.87 ng/ml) than in male infants (3.5 ± 3.88 ng/ml).
- No significant differences in anthropometric measurements or body mass index were observed between the feeding groups.
Conclusions:
- Infant feeding method (breast milk vs. formula) appears to be a significant factor influencing serum leptin concentrations.
- The long-term health implications of these early-life leptin differences, including potential roles in obesity, require further investigation.
Background:
Leptin is a hormone present in breast milk, which regulates food intake and energy metabolism.
Aim:
To investigate whether leptin levels are different in breast-fed (BF) or formula-fed (FF) infants in the first months of life.
Methods:
We evaluated serum leptin by radio-immunoassay and anthropometric parameters in 51 infants at the average age of 62.8+/-30 days, 25 exclusively BF and 26 exclusively FF.
Results:
Leptin serum values were higher in BF (7.1+/-10.4 ng/ml) than in FF (3.7+/-3.87 ng/ml) infants (p <0.05). Leptin values were higher in females (6.9+/-9.87 ng/ml) than in males (3.5+/-3.88 ng/ml) (p <0.05). No differences were found in anthropometric measurements and body mass index.
Conclusion:
The kind of feeding might be a factor affecting serum leptin concentration in term infants. The long-term consequences of this difference between BF and FF infants and leptin's role in promoting obesity later in life are unknown.
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