Abstract:Objective: To investigate the levels of serum thyrotropin (TSH), thyroglobulin antibody (TgAb) and intermediate factor (MK) in patients with thyroid cancer (TC) with the B1 (BRAF) gene homology of anti-mouse sarcoma virus, and to analyze the diagnostic value of TSH in patients with TC. Methods: 83 cases BRAF gene mutant TC patients admitted to our hospital from January 2021 to January 2022 were selected as the mutation group, and 83 cases BRAF gene wild-type TC patients in the same period were selected as the wild group following the principle of 1∶1 allocation. Demographic data, clinicopathological features, serum TSH, TgAb and MK levels of the two groups were analyzed. The influencing factors of mutant TC were analyzed by Logistic regression equation. The diagnostic value of each index on mutant TC was evaluated and its influence on the risk of mutant TC were analyzed. Results: There were significant differences in tumor stage, capsule invasion, tumor number, cervical lymph node metastasis, central lymph node metastasis and serum TSH, TgAb and MK levels between the two groups (P<0.05). Serum TSH, TgAb and MK levels were positively correlated with BRAF gene mutation (P<0.05). Increased serum TSH, TgAb and MK levels were the risk factors for BRAF mutant TC (P<0.05). The AUC of serum TSH, TgAb and MK in the diagnosis of BRAF mutant TC was greater than that of single diagnosis (P<0.05). The risk of BRAF gene mutation TC in high TSH, TgAb and MK expression group was 1.500, 1.625 and 2.617 times higher than that in low expression group (P<0.05). Conclusion: The serum levels of TSH, TgAb and MK in patients with BRAF mutant TC are elevated. The combined detection of TSH, TGAb and MK levels is of certain diagnostic value for BRAF mutant TC.
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