title: Thyrotropic activity of hypophysis during aging.
mesh_terms: D000375:Aging; D000818:Animals; D066298:In Vitro Techniques; D007455:Iodine / Q000378:metabolism; D008297:Male; D009929:Organ Size; D010903:Pituitary Gland, Anterior / Q000033:anatomy & histology / Q000378:metabolism*; D051381:Rats; D013972:Thyrotropin / Q000097:blood / Q000378:metabolism*; D013974:Thyroxine / Q000097:blood
chemical_list: D013972:Thyrotropin; D007455:Iodine; D013974:Thyroxine