Quantitative Analysis of Myelinated Axons of Commissural Fibers in the Rat Brain
Quantitative Analysis of Myelinated Axons of Commissural Fibers in the Rat Brain
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大鼠脑连合纤维有髓轴突的定量分析
DOI：
10.1046/j.1439-0264.2003.00446.x
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Cumhur
中科院分区：
文献类型：
--
作者：
M. F. Sargon;Nuket Mas;S. Senan;B. Ozdemir;H. H. Çelik;M. Cumhur
本研究用透明照相机对大鼠脑内胼胝体的喙部、前连合、后连合、缰连合、胼胝体干部、压部的有髓轴突进行了计数。这些轴突的数密度进行了比较，彼此通过定量分析统计方法。在胼胝体的部分区域，喙与喙、喙与干、喙与压部、喙与干、喙与压部之间的差异有统计学意义。然而，在干和压部之间没有发现统计学上的显著差异。当比较前连合、后连合和缰连合的有髓轴突数量时，发现前连合和后连合之间以及前连合和缰连合之间存在统计学显著差异。在后连合和缰连合之间没有发现统计学显著差异。胼胝体和前连合内均可见小的有髓轴突。然而，在后连合和缰连合中存在不均匀的有髓轴突分布。
In this study, the myelinated axons of the rostrum, genu, truncus and splenium parts of the corpus callosum and of the anterior, posterior and habenular commissures were counted in the rat brain by using a camera lucida. The numerical densities of these axons were compared with each other by means of quantitative analytical statistical methods. In parts of the corpus callosum, a statistically significant difference was found between the rostrum and genu, rostrum and truncus, rostrum and the splenium, genu and truncus, and the genu and splenium. However, no statistically significant difference was found between the truncus and splenium. When comparing the number of myelinated axons of the anterior, posterior and habenular commissures, statistically significant differences were found between the anterior and posterior commissures, and between the anterior and habenular commissures. No statistically significant difference was found between the posterior and habenular commissures. Small sized myelinated axons were present in all parts of the corpus callosum and in the anterior commissure. However, a heterogeneous distribution of myelinated axons was present in the posterior and habenular commissures.