It indicates that the differences of the distribution of the NOS in the Neurons of the cervical spinal cord between Apodemus agrarius and mice are related to their different life styles.

• 与小白鼠相比，黑线姬鼠颈髓NOS阳性神经元数量较多，胞体较大，分布较密集，呈强阳性反应。结果提示野生动物黑线姬鼠与实验动物小白鼠颈髓的这些种间差异与它们生存的环境、生活习性有很大关系。