The prevalence of thyroid nodular disease in patients with increased titers of anti-thyroidal peroxidase antibodies.
OBJECTIVES: The aim of our study was to evaluate the possible association between autoimmunity and thyroid nodular disease (TND).
DESIGN AND SETTING: We conducted a study on 58 patients who were treated in outpatient setting at the Department of Endocrinology, Metabolism and Internal Medicine. Serum samples were analyzed for TSH concentration and anti-TPO antibodies titers. Thyroid ultrasonography was performed in each subject in order to evaluate volume of the gland, and the number and size of nodules.
RESULTS: TND occurred in 70% of anti-TPO positive subjects and in 57.9% of anti-TPO negative subjects, but statistical analysis did not demonstrate a significant concordance between the presence of anti-TPO antibodies and prevalence of TND (p>0.05). We showed that the mean (0.82 vs 0.75; p=0.49), minimal (0.2 vs 0.3; p=0.89) and maximal (2.7 vs 2.4; p=0.49) diameters of a nodule were similar in both groups. Solely in anti-TPO positive patients, anti-TPO titers positively correlated with the number of nodules (p=0.04).
CONCLUSION: Our results favor the role of autoimmunity in TND development although associations between thyroid nodules and thyroid autoimmunity are complicated and may be the subject of much controversy. Increased anti-TPO may influence the number of nodules rather than the presence of TND itself....
Citation
Gabryel B, Brominski G, Owecki M, Michalak M, Ruchala M. The prevalence of thyroid nodular disease in patients with increased titers of anti-thyroidal peroxidase antibodies. Neuro Endocrinol Lett. 2012 Jan; 33(4): 442-445