• Department of Respiratory Medicine, Nanjing Chest Hospital. Nanjing, Jiangsu, 210029, ChinaCorresponding Author: YULi-ke, E-mail: yulike-nanjing@ 163. com;
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Objective  To investigate the changes of thyroid hormone level in patients with nonsmall cell lung cancer ( NSCLC) before and after chemotherapy and its clinical significance.
Methods  78 cases of NSCLC admitted between January 2009 and December 2011 were recruited in the study. The level of total triiodothyronine ( TT3 ) , total thyroxine ( TF4 ) , free triiodothyronine ( FT3 ) , free thyroxine ( FT4 ) , and thyroid stimulating hormone ( TSH) were measured by radioimmunoassay before and after chemotherapy. 35 normal subjects were recruited as control.
Results  The levels of TT3 [ ( 1. 27 ±0. 36) nmol /L vs. ( 2. 62 ±0. 46) nmol /L] and FT3 [ ( 2. 65 ±0. 76) pmol /L vs. ( 3. 79 ±0. 63) pmol /L] in the NSCLC patients were significantly lower than those in the controls ( P  lt;0. 05) , while the levels of TT4 , FT4 and TSH were similar to the controls. The level of TT3 and FT3 were correlated with clinical stage ( P  lt; 0. 05) , and not with histological grade and pathological type ( P  gt;0. 05) . The levels of TT3 and FT3 were remarkably increased in complete remission or partial remission patients after chemotherapy ( P  lt; 0. 05) .
Conclusion  Thyroid hormone measurement may be useful in the patients condition judgment and therapeutic effect monitoring.

Citation: XU Chunhua,YU Like.. Clinical Significance of Serum Thyroid Hormone Level in Patients with Non-small Cell Lung Cancer before and after Chemotherapy. Chinese Journal of Respiratory and Critical Care Medicine, 2013, 12(5): 465-467. doi: DOI: 10 . 7507 /1671 -6205 . 20130112 Copy

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