Fig. 2From: High YKL-40 serum levels and its expression in the muscle tissues of patients with antisynthetase syndromeExpression of YKL-40 in a muscle specimen from a patient with antisynthetase syndrome. Positive immunohistochemistry reaction of (A) YKL-40, (B) YKL-40*; (D) CD68, (E) CD4, and (F) CD8. Magnification is 200x or 400x*. As a negative control of YKL-40 (C), a specimen from a patient with antisynthetase syndrome, but without infiltrate inflammationBack to article page