• S Yildiz, O Ekinci, and R Ucler.
• Van Yuzuncu Yil University, Department of Endocrinology, Van, Turkey.
• Niger J Clin Pract. 2019 Sep 1; 22 (9): 1224-1228.

ObjectiveTo study the relationship between vitamin D and thyroid antibodies with thyroid benign-malign neoplasms.Materials And MethodsThe vitamin D vitamin and thyroid antibodies of 179 patients who underwent thyroidectomy for thyroid nodule were retrospectively reviewed.ResultsThe mean age of the patients was 44.97 ± 14.139. Vitamin D levels were 14.473 ± 4.9999 ng/ml in women and 19.584 ± 6.1981 ng/ml in men and the mean was 15.016 ± 5.3579 ng/ml. There was a significant relationship between sex and vitamin D level (P < 0, 05). Antithyroglobulin antibody (anti-TGB) had been detected in 95 patients and Antithyroid peroxidase antibody (anti TPO) in 58 patients. There was no significant relationship between vitamin D levels (P: 0, 65), anti-TPO positivity (P: 0, 86), and anti-TGB (P: 0, 12) with benign-malignant neoplasm of thyroid. There was no relationship between vitamin D and metastatic disease (P: 0, 30) as well. In addition, no association was found between malignancy and metastasis (P = 0.068, P = 0.14, P: 0, P = 0, respectively) with thyroid antibody positivity (anti TPO and/or anti TGB) in severe deficiency (<10 ng/ml) and deficiency (<20 ng/ml) of vitamin D.ConclusionVitamin D deficiency or thyroid autoantibodies did not have any significant effect on thyroid malignancies or metastatic disease separately or together.

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