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Cellular proliferation andlor differentiation can condition modifications in the expression of AgNORs in rat anterior pituitary cells during growth

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Cellular proliferation andlor differentiation can condition modifications in the expression of AgNORs in rat.pdf(2.69 MB)
Date
1993
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Authors
Carbajo, S. ; Carvajal, J.C. ; Rodríguez, J. ; Carbajo-Pérez, E.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
The expression of argyrophilic nucleolar organizer regions (AgNORs) was studied in the anterior lobe of the hypophysis of 1-, 7-, 14-, 28- and 80-day-old rats. Mean area and numbers of AgNORs per nucleus decreased during this period with a simultaneous increase of both nuclear area and mean AgNOR-particle area. Comparison of our data on AgNOR expression with previously reported data on the proliferative activity and cell maturation and differentiation of anterior pituitary cells during a similar period led us to conclude that, at least in our experimental model, variations in the expression of AgNORs are more related to phenomena of cellular maturation than to proliferative activity.
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AgNOR , Anterior pituitary
Citation
URI
http://hdl.handle.net/10201/18402
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Histology and histopathology Vol. 8, nº 2 (1993)
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