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. 2018 Aug 15;16:229. doi: 10.1186/s12967-018-1598-0

Fig. 1.

Fig. 1

Quantitative real-time PCR results of YKL-40 (CHI3L1) expression in the adipose tissue and ELISA results of serum YKL-40 level for patients with atrial fibrillation (AF, n = 28) and sinus rhythm (SR, n = 36). a For AF patients, the YKL-40 expression was significantly higher in EAT than SAT and PAT. Between groups, YKL-40 in EAT of AF patients was significantly higher than that of SR patients. b No significant difference in serum YKL-40 between AF patients and SR patients. *P < 0.001. SAT subcutaneous adipose tissue, PAT paracardial adipose tissue, EAT epicardial adipose tissue