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Chinese Journal of Antituberculosis ›› 2019, Vol. 41 ›› Issue (2): 181-185.doi: 10.3969/j.issn.1000-6621.2019.02.011

• Original Articles • Previous Articles     Next Articles

The value of blood interferon-gamma-inducible protein 10 level in assessing the treatment efficacy of pulmonary tuberculosis patients

Lan WEI,Xue-bo QIN,Xiao-liang DUAN,Hui LI,Yu-zhuo LI,Xin-zhuan JIA,Lei ZHANG()   

  1. Department of Chest Surgery, Hebei Provincial Chest Hospital, Shijiazhuang 050041, China
  • Received:2018-12-24 Online:2019-02-10 Published:2019-02-01
  • Contact: Lei ZHANG E-mail:1134979643@qq.com

Abstract:

Objective To investigate the changes of serum interferon-gamma-inducible protein 10 (IP-10) and IP-10 response against tuberculosis specific antigens in QuantiFERON Gold In-Tube (QFT-GIT) assay in patients with active pulmonary tuberculosis before and after treatment. Methods A total of 161 cases of active pulmonary tuberculosis who were improved after 6-9 months of regular antituberculosis treatment in Hebei Provincial Chest Hospital during January 2017 to March 2017 were enrolled in this study. Patients were divided into anti-acid staining (+) group (82 cases) and anti-acid staining (-) group (79 cases) according to the results of sputum smear anti-acid staining before treatment. Anti-acid staining (+) group was further divided into group A (anti-acid staining change (-) after 2 months of treatment, 31 cases) and group B (anti-acid staining still (+) after 2 months of treatment, 51 cases). Anti-acid staining (-) group was defined as the group C (79 cases). The levels of serum IP-10 and IP-10 response to antigen in QFT-GIT assay were measured and compared in all groups within 2 weeks, at the end of 2 months and after 6-9 months of treatment. Results The levels of serum IP-10 within 2 weeks, at the end of 2 months and after 6-9 months of treatment were (0.16±0.03)μg/L, (0.13±0.03)μg/L and (0.09±0.02)μg/L in group A, (0.16±0.03)μg/L, (0.15±0.03)μg/L and (0.09±0.02)μg/L in group B, and (0.16±0.03)μg/L, (0.13±0.03)μg/L and (0.09±0.02)μg/L in group C, respectively. The levels of IP-10 response to antigen in QFT-GIT assay within 2 weeks, at the end of 2 months and after 6-9 months of treatment were (21.60±3.07)μg/L, (19.94±3.05)μg/L and (11.01±2.16)μg/L in group A, (23.52±3.10)μg/L, (20.50±4.60)μg/L and (12.08±3.57)μg/L in group B, and (19.67±3.32)μg/L, (13.43±3.16)μg/L and (8.72±1.08)μg/L in group C, respectively. The differences in the levels of serum IP-10 and IP-10 response to antigen in QFT-GIT assay among the three treatment time points in group A, B and C were all statistically significant (F values were 72.84, 111.92, 107.52 and 75.01, 118.09, 138.98, respectively; Ps=0.000). The levels of serum IP-10 and IP-10 response to antigen in QFT-GIT assay after the course of treatment were lower than those within 2 weeks of treatment, and the differences were statistically significant (group A: q values were 71.42 and 138.42; group B: q values were 74.68 and 150.29; group C: q values were 68.76 and 129.83; Ps=0.000). Conclusion Serum IP-10 and IP-10 response to antigen in QFT-GIT assay can be used as potential biomarkers for monitoring the treatment effect of patients with active pulmonary tuberculosis.

Key words: Tuberculosis,pulmonary, Chemokines,CXC, Treatment outcome, Discriminant analysis