Abstract
Aim: To screen novel biomarkers in serum of syphilis patientsusing a mass spectrometry-based method. Materials & methods: Sera were collected from 18 syphilis patients and divided into three groups. Every six serum samples (before and after treatment) in each group were pooled and detected by mass spectrometry. Results: Twenty-five unique peptides corresponding to 15 Treponema pallidum proteins were discovered. Among them, Tp0369 was discovered as a promising biomarker candidate in this study. Tp0524 and Tp0984 levels decreased 0.38-fold and 0.51-fold after BPG treatment, respectively, which may be related to disease outcomes of syphilis. Conclusion: These findings confirmed the presence of detectable T. pallidum protein in patients' serum, which could promote the development of syphilis diagnostics.
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