Subbarrel domains in rat somatosensory (S1) cortex
Subbarrel domains in rat somatosensory (S1) cortex
复制标题
DOI：
10.1002/cne.20677
复制
发表时间：
2005-10-03
影响因子：
2.5
通讯作者：
Erickson, SL
中科院分区：
文献类型：
--
作者：
Land, PW;Erickson, SL
我们采用细胞色素氧化酶（CO）组织化学结合其他组织学方法，探讨大鼠躯体感觉皮层桶形空洞的组织化学结构。我们发现，个别大桶在后内侧桶子域包括两个或三个离散的subbarrel域。详细的分析显示，进一步，subbarrel域的大小是相对一致的，每个具有的平均尺寸，近似那些在小鼠S1的大桶。出乎意料的是，亚桶域被组织成几个不同的，重复的模式。大鼠前外侧桶子区的小桶和小鼠S1的所有桶洞似乎由单个CO结构域组成。亚桶域显示在这里由CO的柱状实体，对应于细胞和骨髓结构的不均匀性桶内，并在丘脑皮质轴突终端丰富。本研究结果与现有的数据表明，桶在大鼠后内侧桶子区的结构和功能异质性。.
We used cytochrome oxidase (CO) histochemistry in conjunction with other histological methods to investigate the histochemoarchitecture of barrel hollows in rat somatosensory cortex. We found that individual large barrels in the posteromedial barrel subfield encompass two or three discrete subbarrel domains. Detailed analysis revealed, further, that subbarrel domains are relatively consistent in size, each having average dimensions that approximate those of large barrels in mouse S1. Unexpectedly, subbarrel domains are organized into a few distinct, repeated patterns. The small barrels in rat anterolateral barrel subfield and all barrel hollows in mouse S1 appear to consist of single CO domains. Subbarrel domains revealed here by CO are columnar entities that correspond with cyto- and myeloarchitectonic inhomogeneities within the barrels and are enriched in thalamocortical axon terminals. The present findings together with existing data indicate that barrels in rat posteromedial barrel subfield are structurally and functionally heterogeneous. .