Thyroid gland
Thyroid gland
Thyroid gland
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Hormone transport<br />
T3 (Half life: 24h) and T4 (Half life: 8d)<br />
> 99.5% protein-bound<br />
bound: T 4 =99.98%; T 3 =99.5%<br />
Only the free hormone is biologically active!!<br />
(prevention of filtration in the kidney,<br />
buffer, reserve)<br />
THYROXINE BINDING GLOBULIN (TBG, 54 kDa Glycoprotein)<br />
THYROXINE BINDING PREALBUMIN (TBPA)<br />
ALBUMIN