The effect of nerve section on the incidence and distribution of gap junctions in the odontoblast layer of the cat
The effect of nerve section on the incidence and distribution of gap junctions in the odontoblast layer of the cat
复制标题
神经切片对猫成牙本质细胞层间隙连接发生率和分布的影响
DOI：
10.1002/ar.1092180415
复制
发表时间：
1987
期刊：
影响因子：
--
通讯作者：
G. R. Holland
中科院分区：
文献类型：
--
作者：
G. R. Holland
间隙连接在牙髓的成牙本质细胞层中是众多的，并且可以将感觉轴突连接到成牙本质细胞。如果这些连接确实将轴突和成牙本质细胞连接起来，那么在中央切断牙髓神经后，它们应该与轴突一起消失。在全身麻醉下，将两只年轻成年猫的一侧下牙槽神经切断。在全身麻醉下，56小时后用固定剂灌注动物，并制备冠状牙髓用于电子显微镜检查。从牙髓角的水平和水平约1，2，和3毫米以下的超薄切片进行了检查。在离牙髓前牙本质连接不同距离处测量细胞突起和间隙连接的发生率，并比较手术侧和对照侧。
Gap junctions are numerous in the odontoblast layer of the dental pulp and may link sensory axons to odontoblasts. If these junctions do link axons and odontoblsts, they, together with the axons, should disappear after cutting the pulpal nerves centrally. Under general anesthesia the inferior alveolar nerve on one side of two young adult cats was sectioned. Under general anesthesia the animals were perfused with fixative 56 hours later and the coronal dental pulp prepared for electron microscopy. Ultrathin sections were examined from the level of the pulpal cornu and levels approximately one, two, and three mm below this. The incidence of cell processes and gap junctions was measured at different distances from the pulp predentin junction, and operated and control sides compared.