Neonatal leptin levels are strongly associated with female gender, birth length, IGF-I levels and formula feeding.

Objective: To investigate predictors of circulating leptin in healthy full-term newborns and to explore the relationship with anthropometric variables, serum levels of adiponectin and the major components of the IGF system at birth. To explore whether leptin levels are regulated by breastfeeding vs. formula feeding.

Serum adiponectin concentrations in relation to maternal and perinatal characteristics in newborns.

Objective: To assess serum adiponectin levels of neonates in relation to ponderal index and birth length with and without adjustment for potential confounding factors including maternal factors and perinatal characteristics.

Design: A cross-sectional study.

Methods: Three hundred and three newborns (Caucasian, singleton, full term, with a birth weight of > or =2500 g, and apparently healthy) were included in the study.

Comparison of three treatment regimens of natural surfactant preparations in neonatal respiratory distress syndrome.

Unlabelled: The aim of the study was to compare the treatment regimen of three natural surfactants of different extraction and formulation (Alveofact [Surfactant A = SA], Poractant [Surfactant B = SB] and Beractant [Surfactant C = SC]) in neonatal respiratory distress syndrome (RDS). Premature infants of /=0.3 were randomly assigned to receive at least two doses of SA, SB or SC (100 mg/kg per dose).