Fig 1: Corin/PCSK6 staining in the heart chambers of ACF and sham-operated rats. Representative images of immunofluorescence staining for corin (A) and PCSK6 (B) in the cardiac atrial and ventricular tissues of rats with compensated CHF, decompensated CHF, and sham-operated animals. Tissues were counterstained with DAPI. All images were obtained at x40 magnification.