title: Behaviour of nucleolar organizer regions in the different Wistar rat liver lobes.
abstract: The area and number of silver-nucleolar organizer regions (Ag-NORs) in the hepatic lobes were determined in 3 male Wistar rats. There was a statistically significant increase in the percentage of Ag-NORs per nucleus in the right lateral and caudate lobe in relation to the left lateral and middle lobes. The area and number of Ag-NORs are greater in the caudate and right lateral lobes in relation to the left lateral and middle lobes. Since the Ag-NOR is a parameter which indicates hepatocytic protein synthesis, the different activity which corresponds to each lobe of the rat's liver makes it possible to assume that there is a functional heterogeneity which should be considered in the study of the hepatic regeneration according to the type of partial hepatectomy carried out.
authors.affiliation: Psychobiology Laboratory, Psychology Faculty, University of Oviedo, Spain.
authors.forename: L
authors.initials: L
authors.lastname: Garcia-Moreno
authors.forename: G
authors.initials: G
authors.lastname: Vallejo
authors.forename: J L
authors.initials: JL
authors.lastname: Arias
authors.forename: M A
authors.initials: MA
authors.lastname: Aller
authors.forename: L
authors.initials: L
authors.lastname: Lorente
authors.forename: J
authors.initials: J
authors.lastname: Arias
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D008099:Liver / Q000648:ultrastructure*; D008297:Male; D009697:Nucleolus Organizer Region / Q000648:ultrastructure*; D051381:Rats; D017208:Rats, Wistar; D016622:Silver Staining