Apkarian A V, Stevens R T, Hodge C J
Brain Res. 1985 May 13;334(1):160-4. doi: 10.1016/0006-8993(85)90579-7.
The laminar distribution of spinal cord neurons projecting suprasegmentally through different funiculi was determined in the cat using horseradish peroxidase (HRP) injections combined with selective spinal cord lesions. The lesions were designed to limit the caudal transport of HRP to either the ventral funiculi or the dorsolateral funiculus. HRP injections in the ventromedial or ventrolateral funiculi resulted in labeling primarily within laminae IV-VIII and a virtual lack of labeling within lamina I. When the dorsolateral funiculus was injected, 20-25% of all labeled cells were located in lamina I, bilaterally. These results demonstrate that the ascending lamina I projections are through the dorsolateral funiculus.
在猫身上，通过将辣根过氧化物酶（HRP）注射与选择性脊髓损伤相结合，确定了通过不同脊髓白质束向上节段投射的脊髓神经元的分层分布。这些损伤旨在将HRP的尾端运输限制在腹侧白质束或背外侧白质束。在腹内侧或腹外侧白质束中注射HRP主要导致IV - VIII层内出现标记，而I层内几乎没有标记。当在背外侧白质束中注射时，所有标记细胞中有20 - 25%双侧位于I层。这些结果表明，I层的上行投射是通过背外侧白质束进行的。
