Lack of plasma leptin response to feeding in newborn infants. 2004

T Shimizu, and Y Satoh, and H Shoji, and K Hisata, and R Tadokoro, and K Shinohara, and S Shiga, and Y Yamashiro
Department 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. CONCLUSIONS 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.

UI MeSH Term Description Entries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008297 Male Males
D001942 Breast Feeding The nursing of an infant at the breast. Breast Fed,Breastfed,Milk Sharing,Wet Nursing,Breast Feeding, Exclusive,Breastfeeding,Breastfeeding, Exclusive,Exclusive Breast Feeding,Exclusive Breastfeeding,Sharing, Milk
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D005526 Food, Formulated Food and dietary formulations including elemental (chemically defined formula) diets, synthetic and semisynthetic diets, space diets, weight-reduction formulas, tube-feeding diets, complete liquid diets, and supplemental liquid and solid diets. Diet, Chemically Defined,Diet, Elemental,Diet, Formula,Diet, Synthetic,Dietary Formulations,Chemically Defined Diet,Synthetic Diet,Chemically Defined Diets,Dietary Formulation,Diets, Chemically Defined,Diets, Elemental,Diets, Formula,Diets, Synthetic,Elemental Diet,Elemental Diets,Foods, Formulated,Formulated Food,Formulated Foods,Formulation, Dietary,Formulations, Dietary
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D020738 Leptin A 16-kDa peptide hormone secreted from WHITE ADIPOCYTES. Leptin serves as a feedback signal from fat cells to the CENTRAL NERVOUS SYSTEM in regulation of food intake, energy balance, and fat storage. Ob Protein,Obese Protein,Ob Gene Product,Obese Gene Product,Gene Product, Ob,Gene Product, Obese

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