Low Butanol-Extractable-Iodine Levels in the Serum of Patients With Down's Syndrome

Thyroid‐stimulating Hormone and Thyroxine Levels in the Plasma of Patients With Down's Syndrome

“…The combined level of thyroxine and tri-iodothyronine, measured chemically as "butanol extractable iodine", has been reported to be low in patients with Down's syndrome (Dodge, Neill and Scally, 1967) but our thyroxine values determined by a non-chemical method, fell within currently accepted normal limits for all the mongols we investigated.…”

Thyroid Replacement Therapy in Down's Syndrome With Hypothyroidism

“…The serum levels of T 3' T 4 and free thyroid hormones in children are not known to us, but the level of PBI seems almost normal in D.S. (Dodge, Neill and Scally, 1967). In adults between nineteen and forty years, neither total T 4 nor total T 3 differ significantly from controls (Murdoch et al), but in subjects above forty years, total T 3 level is significantly reduced (Korsager et al, Murdoch et at.).…”