Paloff A M, Hinova-Palova D V
Department of Anatomy and Histology, Preclinical University Center, Medical University, Sofia, Bulgaria.
J Hirnforsch. 1998;39(2):231-43.
By using a histochemical procedure NADPH-diaphorase the topographical distribution of neurons and fibers containing NADPH-diaphorase activity in the cat's inferior colliculus is examined. Neurons and fibers positive for NADPH-diaphorase are observed throughout the rostro-caudal extent of the inferior colliculus, located in its three main subdivisions: nucleus centralis, nucleus pericentralis and nucleus externus. According to the size of the perikarya, dendritic and axonal morphology the positive neurons are classified as follows: large, medium-sized and small. The morphological differences could contribute to the different functions of these cells. The results support the hypothesis that large and medium-sized NADPH-diaphorase positive neurons represent the projections neurons while the small NADPH-diaphorase positive neurons have morphological characteristics that corresponds to the interneurons. Finally, results demonstrating existence of dense network of NADPH-diaphorase positive fibers and fragments suggest that they are dendrites and axons of NADPH-diaphorase positive neurons distinguished in inferior colliculus.
通过使用组织化学方法检测NADPH-黄递酶，研究了猫下丘中含有NADPH-黄递酶活性的神经元和纤维的拓扑分布。在整个下丘的头-尾范围内，均观察到NADPH-黄递酶阳性的神经元和纤维，它们位于下丘的三个主要亚区：中央核、中央周核和外侧核。根据胞体大小、树突和轴突形态，将阳性神经元分为以下几类：大、中、小。形态学差异可能有助于这些细胞发挥不同的功能。结果支持以下假设：大、中型NADPH-黄递酶阳性神经元代表投射神经元，而小型NADPH-黄递酶阳性神经元具有与中间神经元相对应的形态学特征。最后，结果表明存在密集的NADPH-黄递酶阳性纤维和碎片网络，提示它们是下丘中区分出的NADPH-黄递酶阳性神经元的树突和轴突。
