we therefore studied lung beta-adrenergic receptors in rat pups made hypothyroid with propylthiouracil ( ptu ) ( in utero and postnatally ) compared to normal age-matched control pups and to euthyroid pups which were treated with ptu but were also injected daily with thyroxine ( t4-treated ) .
C0020676
hypothyroid
C0040165
thyroxine