Serum Interleukin-26 is a Potential Biomarker for the Differential Diagnosis of Neurosyphilis and Syphilis at Other Stages
Yuhuan Shen1 Department of Clinical Laboratory, Laboratory Medicine Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, People’s Republic of China
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Xiaoyan Dong2 Department of Clinical Laboratory, Ningbo Blood Centers, Ningbo, Zhejiang, People’s Republic of China
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Jinlin Liu1 Department of Clinical Laboratory, Laboratory Medicine Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, People’s Republic of China
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Huoyang Lv1 Department of Clinical Laboratory, Laboratory Medicine Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, People’s Republic of China
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Yumei Ge1 Department of Clinical Laboratory, Laboratory Medicine Center, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, People’s Republic of China;3 Key Laboratory of Biomarkers and in vitro Diagnosis Translation of Zhejiang Province, Hangzhou, Zhejiang, People’s Republic of ChinaCorrespondence[email protected]
Figure 1 The serum concentrations of IL-26 were quantitatively examined by ELISA.
Notes: ****p ≤ 0.0001 versus healthy controls or neurosyphilis patients; NS = not significant; and U-Mann–Whitney test. Each data point indicates an individual subject, and error bars and medians with interquartile ranges are displayed by red lines.
Figure 2 The associations between the levels of serum IL-26 and clinical routine hematological and humoral indices in healthy subjects and syphilis patients are presented in the form of a heatmap.
Notes: *p ≤ 0.05, **p ≤ 0.01 were considered statistically significant with clinical routine hematological and humoral indices in syphilis patients. Heatmap representation of the correlations between the levels of serum IL-26 and RBC, HGB, HCT, RDW-SD, PLT, WBC, NEUT, LYM, NLR, PLR, MO, EO, BA, MPV, PDW, PCT, p-LCR, uGLU, KET, uPRO, SG, UpH, BLD, uRBC, uWBC, SPC, TPC, KLG, ALT, AST, ALB, ALP, TB, DB, UREA, CR, TG, TC, LDLC, GLU, CK, LDH, GLB, (A)G, (A)A, GGT, IBIL, (B)C, HDL, EGFR-C, APTT, PT, INR, TT, FIB and D-dimer levels in healthy subjects (n = 30, Pearson coefficient), neurosyphilis patients (n = 33, Pearson coefficient), late latent syphilis patients (n = 43, Pearson coefficient), seroresistant syphilis patients (n = 45, Pearson coefficient) and secondary syphilis patients (n = 45, Pearson coefficient).
Figure 3 Correlation between serum IL-26 and TRUST titers in different stages of syphilis.
Notes: The correlation coefficient R represents the linear correlation between serum IL-26 levels and TRUST titers in each experimental group. When the absolute value of R is greater than 0.75 and the p value is ≤0.05, there is considered to be a strong linear correlation.