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Lack of plasma leptin response to feeding in newborn infants
1Department of Pediatrics, Juntendo University School of Medicine, Tokyo, Japan. tsimizut@aol.com
Objective:
Previous reports of the postprandial regulation of leptin are controversial, and there have been few studies on the effects of breast-feeding on postprandial regulation in newborn infants. We examined the response of plasma leptin to breast- and formula-feeding in newborn infants.
Methods:
We measured the plasma leptin levels using an enzyme-linked immunosorbent assay kit before and after feeding in 12 breast-fed and 11 formula-fed mature infants.
Results:
There was no significant difference in plasma leptin levels in breast-fed infants before and after feeding or in artificially fed infants before and after feeding.
Conclusion:
Our results suggest that feeding does not play a role in the acute response of circulating leptin levels in either breast- or formula-fed infants.
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