Fig. 7

Pathological changes in capillary endothelial cells under electron microscope. Ultrastructural examination was performed as described in materials and methods. Increased capillary endothelial cell apoptosis was observed in CIH group (a), which was rarely seen in ARB group (b), c & d. In blank and air control groups the chromatin of capillary endothelial cell was uniform and the nuclear membrane was intact. Magnification: 15000×, scale bar, 2 μm