Pannese E, Ventura R, Bianchi R
J Comp Neurol. 1975 Apr 15;160(4):463-76. doi: 10.1002/cne.901600404.
In the spinal ganglia of two species of reptiles (gecko and lizard) the volume of the perikaryal satellite cell sheath was found directly proportional both to the volume and surface area of the related neuronal body. This result agrees with that obtained in a previous research on two species of mammals (cat and rabbit). A quantitative balance between neuronal bodies and their associated glial tissue therefore exists also in the spinal ganglia of zoological species phylogenetically quite distant from mammals. The quantitative relationship between glial and nerve tissue was found to be lower in the gecko and lizard than in the cat and rabbit. This difference could have a phylogenetic significance, and/or it could be explained by the lower metabolic rate in the nervous system of the poikilotherms in respect to mammals.
在两种爬行动物（壁虎和蜥蜴）的脊髓神经节中，发现神经周卫星细胞鞘的体积与相关神经元胞体的体积和表面积均成正比。这一结果与先前对两种哺乳动物（猫和兔子）的研究所得到的结果一致。因此，在系统发育上与哺乳动物相距甚远的动物物种的脊髓神经节中，神经元胞体与其相关神经胶质组织之间也存在定量平衡。研究发现，壁虎和蜥蜴的神经胶质与神经组织之间的定量关系低于猫和兔子。这种差异可能具有系统发育意义，和/或可以用变温动物相对于哺乳动物神经系统较低的代谢率来解释。
