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Figure 4 PCP and PCPE Expression

Histological sections of myocardial biopsy specimens from 1 patient with chronic heart failure. (A, C) Immunostaining for PCP and PCPE, respectively. These molecules were identified in brown and located mostly in areas of interstitial and perivascular fibrosis (arrows). Positive staining also was seen in cardiomyocytes (arrowheads). (B, D) Negative controls for the correspondent primary antibody omission. Magnification x100. Abbreviations as in Figure 1.