since thyroid peroxidase ( tpo ) is essential in thyroid hormone biosynthesis , we evaluated whether a correlation exists between tpo activity and iodothyronine stores in human thyroid tissues from nodular goiters with scintigraphically `` '' cold '' '' ( n = 10 ) or `` '' hot '' '' ( n = 7 ) nodules , diffuse toxic goiters ( n = 6 ) , and in normal rat thyroids ( n = 18 ) .
C0040132
thyroid
C0018023
nodular goiters