The<unk>  (GD, also referred to as deiodination capacity, total<unk> activity or, if calculated from levels of thyroid hormones, as SPINA-GD) is the maximum amount of triiodothyronine produced per time-unit under conditions of substrate saturation. It is assumed to reflect the activity of<unk>  outside the central nervous system and other isolated compartments. GD is therefore expected to reflect predominantly the activity of type I<unk>
Sum activity of peripheral deiodinases
Thyroid hormone binding ratio
Thyroid's secretory capacity
Heart-type fatty acid binding protein
Insulin index
Pharmacokinetics of testosterone
Fatty acid ratio in food
Trinder glucose activity test