Postnatal weight change is influenced by mother-newborn pair leptin levels

Abstract We investigated serum leptin levels in 103 mother-newborn-pairs; Cord leptin was significantly higher than mother's leptin (5.7 ± 5.5 vs. 22.1 ± 19.9 ng/ml; p th day significantly correlated with percent weight loss in the first four days of life. These observations shed light on the origin of cord leptin and on the role of leptin in postnatal weight loss.