title: Serum thyroglobulin levels: the physiological decrease in infancy and the absence in athyroidism.
abstract: The cord serum thyroglobulin levels of 218 neonates are much higher than the levels after the first year of life and show a wide range. A relation exists between a shorter gestational age and increased thyroglobulin levels. The serum thyroglobulin levels decrease within a few months after birth, but throughout the first year of life, these levels are still higher than the normal values at later ages (5-35 ng/ml). IN 3 athyroid children, thyroglobulin is undetectable in serum.
mesh_terms: D000375:Aging; D002648:Child; D002675:Child, Preschool; D005312:Fetal Blood / Q000378:metabolism*; D005865:Gestational Age; D006801:Humans; D007037:Hypothyroidism / Q000097:blood*; D007223:Infant; D007231:Infant, Newborn; D007234:Infant, Premature; D013954:Thyroglobulin / Q000097:blood*; D013972:Thyrotropin / Q000097:blood
chemical_list: D013972:Thyrotropin; D013954:Thyroglobulin