We measured the soluble cytokine CD27 in a variety of thyroid disorders, So
luble CD27 was increased in untreated Graves' hyperthyroidism and in euthyr
oid ophthalmopathy, Levels of sCD27 were normal after the establishment of
euthyroidism with propylthiouracil (PTU) or radio iodine in primary hypothy
roidism, chronic thyroiditis, and the hyperthyroid and euthyroid phases of
subacute thyroiditis, Soluble CD27 is a marker for cellular activation as i
n Graves' hyperthyroidism, but it is not predictive of the outcome of PTU t
herapy.