title: Nucleoprotein changes and uridine incorporation in rat thymus lymphocytes. I. Cellular characterization of age-dependent thymus involution.
mesh_terms: D000375:Aging; D000818:Animals; D001345:Autoradiography; D001665:Binding Sites; D002478:Cells, Cultured; D002843:Chromatin / Q000378:metabolism; D004247:DNA / Q000096:biosynthesis; D003609:Dactinomycin / Q000378:metabolism / Q000494:pharmacology; D005260:Female; D008214:Lymphocytes / Q000378:metabolism*; D008297:Male; D009698:Nucleoproteins / Q000378:metabolism*; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D013936:Thymidine / Q000378:metabolism; D013950:Thymus Gland / Q000166:cytology*; D013997:Time Factors; D014316:Tritium; D014529:Uridine / Q000378:metabolism*
chemical_list: D002843:Chromatin; D009698:Nucleoproteins; D014316:Tritium; D003609:Dactinomycin; D012313:RNA; D004247:DNA; D013936:Thymidine; D014529:Uridine