Aims and background: YKL-40 is a glycoprotein secreted by macrophages, neutrophils and malignant tumor cells. YKL-40 is expressed and secreted by several types of tumors. The aim of this study examined the clinical usefulness of YKL-40 for detection in esophageal squamous cell carcinoma (ESCC).
Methods: Using ELISA kits, we measured the concentration of YKL-40 in serum from 100 patients with ESCC and compared this concentration with healthy population.
Results: We found significantly higher serum levels of YKL-40 in patients with ESCC compared to the healthy population
(P < 0.0001).
Conclusions: These results suggested that regarding serum YKL-40 as a tumor marker could be benefical in the early clinical diagnosis.
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