hrp0082fc5.4 | Neuroendocrinology | ESPE2014

Reference Values for Urinary Gonadotropins in Preterm and Full-Term Infants in ‘Minipuberty’

Kuiri-Hanninen Tanja , Hamalainen Esa , Silvennoinen Sanna , Dunkel Leo , Sankilampi Ulla

Background: Hypothalamic–pituitary–gonadal (HPG) axis activates soon after birth, and this ‘minipuberty’ provides a transient phase for evaluation of the function of the HPG axis in early infancy. Substantial differences in postnatal gonadotropin secretion have been reported between preterm (PT) and full-term (FT) boys and girls. Therefore, when evaluating gonadotropin levels in infants, time from birth (calendar age), maturity (postmenstrual, PM age) and s...