Fiber arrangements of nerves belonging to ventral and dorsal divisions in the proximal region of the brachial plexus: a study using fluorescence of DiI and DiO in adult rats
Fiber arrangements of nerves belonging to ventral and dorsal divisions in the proximal region of the brachial plexus: a study using fluorescence of DiI and DiO in adult rats
复制标题
臂丛神经近端区域腹侧和背侧神经的纤维排列：在成年大鼠中使用 DiI 和 DiO 荧光的研究
DOI：
10.1007/s00276-003-0222-y
复制
发表时间：
2004
影响因子：
1.4
通讯作者：
J. Hitomi
中科院分区：
文献类型：
--
作者：
Jun Yan;J. Hitomi
脊神经近端区域的运动和感觉纤维排列对于理解周围神经与神经元分布的关系很重要。另一方面，纤维排列对于周围神经移植的治疗也很重要。我们使用荧光颜料 DiI 和 DiO 的方法研究了成年大鼠臂丛神经近端区域两个部分（腹侧和背侧）的纤维排列以及 Th7 和 Th8 肋间神经外侧皮支的纤维排列。结果表明，属于两个分区的纤维排列在远端区域具有特定的单独分布。然而，这种特定的单独分布形式在神经丛中的脊神经的近端区域中不存在。用同样的方法观察胸神经前支（肋间神经）外侧皮支的纤维排列情况，并与臂丛神经进行比较。肋间神经中，外侧皮支纤维从远侧到近侧分布于背侧部分。这些结果表明，脊神经近端区域有两种类型的纤维排列：腹背分布型，包括肋间神经和脊神经的背支；以及腹背分布型，包括肋间神经和脊神经的背支。以及混合型，包括颈丛和臂丛（也许还有腰丛）的前分支。另一方面，肋间神经的外侧皮支纤维分布在神经的背侧。肋间神经纤维排列分析的这些结果可能为提高使用周围神经移植和缝合臂丛和腰丛神经肋间神经的治疗效果提供机会。
The motor and sensory fiber arrangements in the proximal region of the spinal nerves are important for understanding the relationship of the peripheral nerves to neuron distribution. On the other hand, the fiber arrangements are also important for the treatment of peripheral nerve grafting. We studied the fiber arrangements of two divisions (ventral and dorsal) in the proximal region of the brachial plexus and the fiber arrangements of the lateral cutaneous rami in Th7 and Th8 intercostal nerves in adult rats with a method using the fluorescent pigments DiI and DiO. Results showed that fiber arrangements belonging to the two divisions have a specific separate distribution in the distal region. However, this specific separate distribution form was absent in the proximal region of the spinal nerves in the plexus. Fiber arrangements of the lateral cutaneous ramus in the anterior branches of the thoracic nerves (intercostal nerves) were also observed in comparison with those in the brachial plexus by the same method. In the intercostal nerves, fibers of the lateral cutaneous ramus were distributed in the dorsal portion from distal to proximal. These results suggest that there are two types of fiber arrangement in the proximal regions of the spinal nerves: a ventrodorsal distributional type, comprising intercostal nerves and the dorsal branches of the spinal nerves; and a mixed type, comprising the anterior branches of the cervical and brachial (and perhaps lumbar) plexuses. On the other hand, fibers of the lateral cutaneous rami in the intercostal nerves were distributed on the dorsal part of the nerves. These results of fiber arrangement analysis for the intercostal nerves may offer an opportunity to improve the effect of treatments using peripheral nerve grafting and suturing in the brachial and lumbar plexus with intercostal nerves.