Changes in endothelial [Ca2+]i in response to acetylcholine stimulation in an isolated pressurized artery. (credit: Z Bagi)

ihc-hu

Photomicrograph shows a precapillary coronary arteriole in the human heart.

Red: endothelial nitric oxide synthase; white: GTP cyclo-hydrolase; green: smooth muscle actin; blue: DAPI, nuclei (credit: M Balogh & A Szabo)

hfd-cav

Photomicrogrpah shows a small coronary artery (longitudinal section) in the rat heart.

Red: caveolin-1; greeen: smooth muscle actin, blue: DAPI, nuclei (credit: A Feher & Z Bagi)

 

biotynated cell

Z-stack image showing the biotynated surface molecules of vascular smooth muscle cell. (credit: A Szabo)