小鼠主嗅球内肾小球内二尖瓣/簇状细胞树突之间的神经元缝隙连接。

Neuronal gap junctions between intraglomerular mitral/tufted cell dendrites in the mouse main olfactory bulb.

作者信息

Kosaka Toshio, Kosaka Katsuko

机构信息

Department of Anatomy and Neurobiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.

出版信息

Neurosci Res. 2004 Aug;49(4):373-8. doi: 10.1016/j.neures.2004.04.003.

DOI:10.1016/j.neures.2004.04.003

PMID:15236862

Abstract

In the mouse main olfactory bulb (MOB) gap junction-forming processes in glomeruli were analyzed by means of the serial electron microscopical reconstruction. Gap junctions were encountered between diverse types of dendritic processes and thus confirming our previous study on gap junctions in the rat MOB. Importantly, among more than 30 gap junctions examined in serial sections, we encountered 3 gap junctions made between mitral/tufted cell dendrites in the glomerulus. Then we must consider both direct coupling between mitral/tufted cells via gap junctions and indirect coupling between mitral/tufted cells via intervening interneuronal processes as suggested previously.

摘要

通过连续电子显微镜重建技术，对小鼠主嗅球（MOB）中肾小球内形成缝隙连接的过程进行了分析。在不同类型的树突状突起之间发现了缝隙连接，从而证实了我们之前对大鼠MOB中缝隙连接的研究。重要的是，在连续切片中检查的30多个缝隙连接中，我们在肾小球中发现了3个由二尖瓣/簇状细胞树突形成的缝隙连接。那么我们必须考虑二尖瓣/簇状细胞之间通过缝隙连接的直接耦合以及如先前所述的二尖瓣/簇状细胞之间通过中间神经元过程的间接耦合。