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  • Title: [Regeneration of the liver of Chinese hamster Cricetulus griseus].
    Author: Sakuta GA, Baĭdiuk EV, Zhumagalieva AA, Kudriavtsev BN.
    Journal: Tsitologiia; 2011; 53(11):868-73. PubMed ID: 22332417.
    Abstract:
    Using cytofluorimetry and interferometry, hepatocyte DNA, dry mass and distribution of hepatocyte ploidy classes were measured in hamsters Cricetulus griseus in 1 month after partial hepatoctomy. Ploidy of normal liver hepatocyte was 2.35 +/- 0.03 (mean +/- SD) c. Modal ploidy class was presented by mononuclear hepatocytes with diploid nuclei (82.4 +/- 1.3 %). Hepatocyte dry mass was 605.2 +/- 4.8 pg. One month after partial hepatectomy the distribution of ploidy classes and dry mass of hepatocyte did not change. A similar hepatectomy in mice resulted in significant polyploidization of liver parenchyma: the middle level of hepatocyte ploidy increased by 32% and mononuclear octaploid cells, the number of which increased 5-fold, composed modal ploidy class in place of 4cx2-hepatocytes predominated in control mice. The number of 8cx2-hepatocytes in the liver of mice creased by more than 5-fold. Thus, in contrast with mice, in hamsters Cricetulus griseus an increase in the liver mass followed partial hepatectomy depended completely on hepatocyte proliferation.
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