Sun W, Erichsen J T, May P J
Department of Anatomy, University of Mississippi Medical Center, Jackson. 39216.
Vis Neurosci. 1994 Sep-Oct;11(5):1027-31. doi: 10.1017/s0952523800003965.
Ciliary ganglia from the pigeon, cat, and monkey were investigated for the presence of NADPH-diaphorase reactivity by use of a standard histochemical method. In the pigeon, where the ganglion is known to control lens and pupil function, and the choroidal vasculature, about one-third of the ganglion cells were densely stained and most other somata were lightly stained. In some cases, preganglionic terminals with a cap-like morphology were also darkly stained. The pattern of NADPH-diaphorase staining in mammals was very different from that seen in pigeons. In both mammalian species, where the ganglion is known to control lens and pupil function, a small number (less than 2%) of the ganglion cells were shown to be densely NADPH-diaphorase positive, revealing their neuronal processes. The presence of NADPH-diaphorase positive cells in pigeon, cat, and monkey ciliary ganglia suggests that nitric oxide may be used for intercellular communication in this ganglion, or in light of the known importance of nitric oxide in vascular control, some of these positive neurons may participate in the control of choroidal vasodilation.
采用标准组织化学方法，对鸽子、猫和猴子的睫状神经节进行了烟酰胺腺嘌呤二核苷酸磷酸（NADPH）黄递酶反应活性检测。在鸽子中，已知该神经节控制晶状体和瞳孔功能以及脉络膜血管系统，约三分之一的神经节细胞被深染，大多数其他胞体被浅染。在某些情况下，具有帽状形态的节前终末也被深染。哺乳动物中NADPH黄递酶染色模式与鸽子中所见非常不同。在这两种哺乳动物中，已知该神经节控制晶状体和瞳孔功能，少数（不到2%）神经节细胞显示为NADPH黄递酶强阳性，显示出它们的神经突起。鸽子、猫和猴子睫状神经节中存在NADPH黄递酶阳性细胞，这表明一氧化氮可能用于该神经节中的细胞间通讯，或者鉴于一氧化氮在血管控制中的已知重要性，这些阳性神经元中的一些可能参与脉络膜血管舒张的控制。
