Acta Biologica Hungarica
Volume/Issue:
Volume 56: Issue 3-4
Seasonal fluctuations of glial fibrillary acidic protein (GFAP) immunoreactivity in the rat suprachiasmatic nucleus
Authors:
B. Gerics Department of Anatomy and Histology, Faculty of Veterinary Science, Szent István University P.O. Box 2, H-1400 Budapest, Hungary

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F. Szalay Department of Anatomy and Histology, Faculty of Veterinary Science, Szent István University P.O. Box 2, H-1400 Budapest, Hungary

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F. Hajós Department of Anatomy and Histology, Faculty of Veterinary Science, Szent István University P.O. Box 2, H-1400 Budapest, Hungary

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Pages:
199–204
Online Publication Date:
09 Sep 2005
Publication Date:
01 Aug 2005
Article Category:
Research Article
DOI:
https://doi.org/10.1556/abiol.56.2005.3-4.3
Keywords:
immunohistochemistry; immunohistochemistry; immunohistochemistry; GFAP; biological clock; SCN - rat
Restricted access

The pacemaker of the “biological clock”, the suprachiasmatic nucleus (SCN) of the hypothalamus was studied in intact male rats for glial fibrillary acidic protein (GFAP) a specific marker for astrocytes. Immunohistochemical reactions were carried out in winter (January-February) and in summer (June-July). In winter the GFAP-immunoreactivity of the SCN was found low whereas in summer it was high. Gonadectomy reduced differences. Since photic stimuli that apparently trigger the observed differences reach the SCN through identified neuronal pathways we conluded that the reaction of astrocytes is an indicator of seasonally altered neuronal function in the SCN.

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Cover Acta Biologica Hungarica
Acta Biologica Hungarica
Print ISSN:
0236-5383
Online ISSN:
1588-256X

Senior editors

Editor(s)-in-Chief: Elekes, Károly

Editorial Board

    1. Csányi, Vilmos (Göd)
    1. Dudits, Dénes (Szeged)
    1. Falus, András (Budapest)
    1. Fischer, Ernő (Pécs)
    1. Gábriel, Róbert (Pécs)
    1. Gulya, Károly (Szeged)
    1. Gulyás, Balázs (Stockholm)
    1. Hajós, Ferenc (Budapest)
    1. Hámori, József (Budapest)
    1. Heszky, László (Gödöllő)
    1. Hideg, Éva (Szeged)
    1. E. Ito (Sanuki)
    1. Janda, Tibor (Martonvásár)
    1. Kavanaugh, Michael P. (Missoula)
    1. Kása, Péter (Szeged)
    1. Klein, Éva (Stockholm)
    1. Kovács, János (Budapest)
    1. Brigitte Mauch-Mani (Neuchâtel)
    1. Nässel, Dick R. (Stockholm)
    1. Nemcsók, János (Szeged)
    1. Péczely, Péter (Gödöllő)
    1. Roberts, D. F. (Newcastle-upon-Tyne)
    1. Sakharov, Dimitri A. (Moscow)
    1. Singh, Meharvan (Fort Worth)
    1. Sipiczky, Mátyás (Debrecen)
    1. Szeberényi, József (Pécs)
    1. Székely, György (Debrecen)
    1. Tari, Irma (Szeged)
    1. Vágvölgyi, Csaba (Szeged),
    1. L. Zaborszky (Newark)

 

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Acta Biologica Hungarica
Language English
Size  
Year of
Foundation		 1950
Publication
Programme		 changed title
Volumes
per Year		  
Issues
per Year		  
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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ISSN 0236-5383 (Print)
ISSN 1588-256X (Online)

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