Am J Psychiatry 1985; 142:840-843
Copyright © 1985 by American Psychiatric Association
Antithyroid antibodies in depressed patients
CB Nemeroff, JS Simon, JJ Haggerty Jr and DL Evans
The presence of antithyroid (antimicrosomal and antithyroglobulin)
antibodies was assessed in 45 psychiatric inpatients with prominent
depressive symptoms (28 with DSM-III major depression). Nine patients (20%)
had detectable titers of antithyroid antibodies, a rate considerably higher
than the 5%-10% observed in the normal population. Each of these nine
patients with symptomless autoimmune thyroiditis had normal baseline serum
thyrotropin concentrations and normal thyroid function (as assessed by T4,
T3 uptake, and free thyroxine index). These findings support the hypothesis
of subtle thyroid dysfunction in a sizable sample of psychiatric inpatients
with prominent depressive symptoms.