Methods: The distribution of CMPase in the retina of 20-week-old WKY and SHR were studied by electron microscopic cytochemistry.

• 方法：应用电镜酶细胞化学方法对20周龄正常京都种大鼠和同周龄的自发性高血压大鼠视网膜组织的胞嘧啶单核苷酸酶活性部位进行定位观察。