Gerics, B. and Szalay, F. and Hajós, F. (2005) Seasonal fluctuations of glial fibrillary acidic protein (GFAP) immunoreactivity in the rat suprachiasmatic nucleus. Acta Biologica Hungarica, 56 (3-4). pp. 199-204. ISSN 0236-5383
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Abstract
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.
Item Type: | Article |
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Subjects: | Q Science / természettudomány > QH Natural history / természetrajz |
Depositing User: | Endre Sarvay |
Date Deposited: | 20 Nov 2017 14:06 |
Last Modified: | 20 Nov 2017 14:06 |
URI: | http://real.mtak.hu/id/eprint/70050 |
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