Figure 1.

Immunodetection of S100A6 in heart of rat: (A) SHR – strong S100A6-reactivity in the atrial myocardium; (B) SHR with doxazosin treated – less numerous atrial muscle cells stained with anti-S100A6; (C) SHR – immunoreactivity with S100A6 in ventricular cardiomyocytes; (D) SHR receiving doxazosin – considerably weaker S100-immunosignal in ventricular myocardium; (E) rat with spontaneous hypertension – intense reaction in the wall of coronary vasculature; (F) SHR with doxazosin treated – delicate signal for S100A6 in vessels supplying heart wall. (A color version of this figure is available in the online journal.)