TXNRD1 and non-small cell lung carcinoma: To evaluate the prognostic significance of the serum TrxR1 activity, we used serum TrxR1 cut-off value 12 U/ml, which was calculated from previous study, as a threshold to partitioned 142 NSCLC patients into two groups, high serum TrxR1 activity group (TrxR1 ≥12 U/ml, n = 69) and low serum TrxR1 activity group (TrxR1 < 12 U/ml, n=73).