[Autoradiographic study of mesothelial proliferation in white mice under experimental conditions]

The proliferative activity (mitotic cycle, proliferative pool) of the mesothelium of the parietal peritoneum of white mice acted upon by distilled water was studied autoradiographically with H3-thymidine. The mesothelium regenerated due to high mitotic activity and increased amount of polynuclear cells. The latter are formed as a result of amitotic and mitotic division of the nucleus without plasmotomy. The distribution of cells at the stage of DNA synthesis and mitosis in all the parietal peritoneum speaks of the absence of special proliferation zones.