[Peculiarities of the ultrastructural organization of prismatic cells of the large intestine in nonspecific ulcerative colitis].

Electron-microscopy studies of biopsy specimens of the large intestine mucosa in 36 patients with non-specific ulcerated colitis were carried out. A difference in the structure of the lateral plasmatic membranes of prismatic cells and intercellular space of the large intestine mucosa in patients at periods of remission and exacerbation was revealed. Characteristics of the fine structure of the lateral plasmatic membranes of prismatic cells and the intercellular space in patients at the period of exacerbation of the disease reflected the compensatory processes directed at stabilization of the impaired water balance under conditions of diarrhea and dehydration by activating resorption processes in the large intestine.