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- W2430358857 abstract "The degree of chromatin condensation was studied on ultrathin cell sections of guinea pig hepatocytes during the prereplicative period after partial hepatectomy. Three time points were chosen for analysis namely 2,5, 5 and 9 hrs after operation since they show marked increasing (2.5 hrs), decreasing (5 hrs) and repeated increasing (9 hrs) of the amount of ethidium bromide binding to chromatin. The degree of chromatin condensation was determined by measuring the area occupied by condensed chromatin and also by measuring the number of chromatin fibrils per a certain length. The condensed chromatin with varying localization in the nucleus were studied separately. The changes of nucleoplasmic chromatin were most pronounced: at 2.5 and 9 hrs after operation the decrease of the relative area and of the density of chromatin fibrils package was observed; these parameters were near to control at 5 hrs after operation. In general the changes in nucleoplasmic chromatin were correlated with the changes of the activity of the chromatin in the whole nucleus. The decondensation of the perimembranous chromatin was manifested in the decrease of its area and was expressed only at 9 hrs after operation. The perinucleolar chromatin was found to show the gradual decondensation which was manifested mainly by the decrease of its relative area. Thus the condensed chromatin seems to be a labile structure which undergoes essential changes in the process of the exit of the hepatocytes from G0-stage of the cell cycle, during the prereplicative period." @default.
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- W2430358857 date "1984-07-01" @default.
- W2430358857 modified "2023-09-23" @default.
- W2430358857 title "[Electron microscope study of chromatin in hepatocyte nuclei during the first hours after partial hepatectomy. V. Changes in the relative area of condensed chromatin and the density of chromatin fibril packing in the ultrathin sections]." @default.
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