Figure 5.

TRPM4 is expressed in the smooth muscle layers of blood vessels used in the functional studies. Tissue sections were prepared from skeletal muscle, mesentery, and brainstem. DAPI: nuclei (blue); FITC smooth-muscle actin: smooth muscle cells (green); Cy3-TRPM4 labeling (red). White arrowheads point to the blood vessels used in the functional studies on merged (overlayed) images. Scale bar = 100 µm. Histological sections were prepared from three animals. It is not known whether the figures for separate arterial beds represent the same or different animals.