21日饥饿大鼠空肠吸收细胞的环层板

Annulate lamellae of the jejunal absorptive cells in 21-day-starved rats.

作者信息

Sohma M, Oomori Y, Kitagawa T, Satoh Y, Namiki M, Ono K

出版信息

Acta Histochem. 1985;77(1):101-6. doi: 10.1016/S0065-1281(85)80021-0.

Abstract

The ultrastructure of annulate lamellae of the jejunal absorptive cells in control and 21 d starved rats was investigated. Annulate lamellae were only rarely encountered in the jejunal absorptive cells of control rats, and then frequently in small stacks continuous with the rough-surfaced endoplasmic reticulum. In contrast, there was a relatively frequent incidence of annulate lamellae in the jejunal absorptive cells of 21 d starved rats, and larger stacks of annulate lamellae were also observed in spite of marked ultrastructural changes of these cells. The annulate lamellae were also continuous with the rough-surfaced endoplasmic reticulum, which was degenerating. The degenerative process of the absorptive cells following starvation might be related to the origin and function of the annulate lamellae.

摘要

对正常和饥饿21天大鼠空肠吸收细胞环孔板的超微结构进行了研究。正常大鼠空肠吸收细胞中很少见到环孔板，偶尔可见与糙面内质网相连的小堆栈状环孔板。相比之下，饥饿21天大鼠的空肠吸收细胞中环孔板的出现频率相对较高，尽管这些细胞有明显的超微结构变化，但仍观察到较大的环孔板堆栈。环孔板也与正在退化的糙面内质网相连。饥饿后吸收细胞的退化过程可能与环孔板的起源和功能有关。