Endothelial nitric oxide in the brain. Computer generated image showing endothelial nitric oxide (red) in brain tissue. Endothelial nitric oxide is generated by the endothelial nitric oxide synthase (NOS) enzyme, which is involved in regulating vascular tone by inhibiting smooth muscle contraction and platelet aggregation. Magnification: x800, when printed 10 cm wide.
Model release not required. Property release not required.