Thyrotropin, prolactin and growth hormone response to synthetic thyrotropin-releasing hormone in newborn infants.
The effects of 50 microgram synthetic thyrotropin-releasing hormone (TRH) intravenously on thyrotropin (TSH), prolactin (PRL) and growth hormone (GH) levels were studied in 8 normal male newborns during the first hours of life. Mean plasma GH concentrations were similar to baseline values during the period of study; on the contrary, plasma PRL and TSH values increased in all infants after TRH administration. These data demonstrate a normal pituitary reserve of PRL and TSH in the early period of human life.
D013006:Growth Hormone / Q000097:blood*; D006801:Humans; D007231:Infant, Newborn; D007275:Injections, Intravenous; D008297:Male; D011388:Prolactin / Q000097:blood*; D013972:Thyrotropin / Q000097:blood*; D013973:Thyrotropin-Releasing Hormone / Q000008:administration & dosage
D013973:Thyrotropin-Releasing Hormone; D011388:Prolactin; D013972:Thyrotropin; D013006:Growth Hormone