Marchini M, Raspanti M, Leonardi L, Morocutti M
Boll Soc Ital Biol Sper. 1980 Dec 30;56(24):2569-74.
The Authors have studied the microfibrillar packing of the scleral collagen fibrils on thin sections of samples treated with a dissociant agent and on replicas of freeze-fractured fibrils. The only difference in observing the fibrils between the external and internal layers is relative to the diameter, evidencing in general, lower dimensions in the latter. The microfibrillar packing is characterized by a lightly spiralized or wavy running of filamentous subunits and the same is evident in fibrils of different diameter. The ultrastructural pictures are similar to those obtained in the other tissues, such as tendons, fibrous cartilages, fibrous capsules of parenchymatous organs and ligaments, in which the collagen is predominantly type I, like in the sclera.
作者们研究了用解离剂处理过的样本薄片上巩膜胶原纤维的微原纤维堆积情况，以及冷冻断裂纤维的复制品上的微原纤维堆积情况。观察外层和内层纤维之间的唯一差异在于直径，一般来说，后者的尺寸较小。微原纤维堆积的特征是丝状亚基呈轻度螺旋状或波浪状排列，不同直径的纤维中均有此现象。超微结构图像与在其他组织中获得的图像相似，如肌腱、纤维软骨、实质器官的纤维囊和韧带，这些组织中的胶原主要为I型，与巩膜中的情况相同。
