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  • Title: Microautoradiographic study of cell proliferation in compensatory renal growth.
    Author: Mandache E, Repciuc E.
    Journal: Morphol Embryol (Bucur); 1975; 21(1):71-8. PubMed ID: 127941.
    Abstract:
    DNA synthesis in the renal parenchyma was studied by electron microscopic autoradiography 48 and 72 hours after unilateral nephrectomy in mice and weanling rats. The proportion of labelled nuclei belonging to the epithelium, endothelium, interstitial areas, or circulating cells was evaluated. Most of cells showing DNA synthesis were epithelial but many belonged to stroma. All the nephron segments were found to participate in compensatory hyperplasia, with a greater contribution, however, of the proximal convoluted tubules. DNA synthesis by the capillary endothelial cells occurred later than the peak epithelial mitotic activity. The site of DNA synthesis in nuclei was the euchromatin, the silver grains being uniformly distributed throughout the nuclear areas with condensed chromatin, and more seldom in the nuclear envelope areas or that of the perinucleolar satellites.
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