Pudney J, Fawcett D W
Anat Rec. 1977 Aug;188(4):453-75. doi: 10.1002/ar.1091880406.
During a study on the fine structure of different regions of the reproductive tract of the ground squirrel, Citellus lateralis, cells possessing cytological features associated with steroid production were observed among the ductuli efferentes. Comparison of the morphology of these cells with that of Leydig and adrenocortical cells, demonstrated that they resembled Leydig cells in many anatomical details. Further evidence for the similarity of the cells associated with the ductuli efferentes to Leydig cells emerged during sexual regression, when both types of cells underwent the same regressive changes in organization and morphology. This suggests that the cells present among the ductuli efferentes are active in the synthesis of androgenic hormones, and possibly play a role in the endocrine control of reproduction in this species of ground squirrel.
在一项对侧纹黄鼠（Citellus lateralis）生殖道不同区域精细结构的研究中，在输出小管中观察到了具有与类固醇生成相关细胞学特征的细胞。将这些细胞的形态与睾丸间质细胞和肾上腺皮质细胞的形态进行比较，结果表明它们在许多解剖学细节上与睾丸间质细胞相似。在性消退期间，输出小管相关细胞与睾丸间质细胞相似性的进一步证据显现出来，此时这两种类型的细胞在组织结构和形态上都经历了相同的退行性变化。这表明输出小管中的细胞在雄激素合成中具有活性，并且可能在这种侧纹黄鼠的生殖内分泌控制中发挥作用。
