title: The 24-hour growth hormone secretion in a boy with giantism.
abstract: The endocrinological and radiological findings in a 7.5-year-old boy with giantism are reported and compared with an age and sex matched normal tall boy. A 24-h GH profile demonstrated a persistently elevated GH concentration (mean GH concentration: giant 19.3 mU/l; tall boy 5.4 mU/l) with loss of the dominant GH periodicity of 3 h seen in the boy with tall stature and substitution with one of 8 h. These data support the view that giantism and acromegaly are similar diseases occurring prior to and following epiphyseal fusion, respectively.
mesh_terms: D002648:Child; D002940:Circadian Rhythm; D005877:Gigantism / Q000097:blood / Q000503:physiopathology*; D005951:Glucose Tolerance Test; D013006:Growth Hormone / Q000097:blood / Q000378:metabolism*; D006801:Humans; D008297:Male; D011388:Prolactin / Q000097:blood / Q000378:metabolism; D013973:Thyrotropin-Releasing Hormone / Q000494:pharmacology
chemical_list: D013973:Thyrotropin-Releasing Hormone; D011388:Prolactin; D013006:Growth Hormone