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Journal of Clinical Endocrinology & Metabolism, Vol 41, 446-452, Copyright © 1975 by Endocrine Society

ARTICLES

Iodoamino acid content and distribution in normal and abnormal human thyroids

EM Volpert, AP Prezyna, JF Gaeta and GF Koepf

Iodoamino acid content and distribution were measured in adenomas, nodular goiters, thyroiditis and carcinomas and compared to thyroids from patients who died suddenly and normal thyroid tissues originally adjacent to diseased tissue. Tissues were hydrolyzed with Pronase, derivatized and analyzed by gas chromatography as had previously been reported for rat thyroids. Considerable overlap in values was found among adenomas, nodular goiters and papillary and follicular carcinomas as compared to values in normal thyroid tissue, but low values were also found in several diseased tissues. MIT/DIT and T3/T4 ratios were essentially constant in most tissues, even when T4 values were low. MIT/DIT ratios were, however, high and iodothyronines undetectable in all Hurthle cell neoplasms, clearly differentiating them from other thyroid conditions.




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Copyright © 1975 by The Endocrine Society