Neuroendocrinology

Original Paper

Brain TRF Immunoreactivity during Various Physiological and Stress Conditions in the Rat

Koivusalo F. · Leppäluoto J.

Author affiliations

Institute of Physiology, University of Oulu, Oulu

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Neuroendocrinology 1979;29:231–236

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: December 15, 1978
Accepted: March 08, 1979
Published online: March 26, 2008
Issue release date: 1979

Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0

ISSN: 0028-3835 (Print)
eISSN: 1423-0194 (Online)

For additional information: https://www.karger.com/NEN

Abstract

Methanol extracts of several rat tissues (hypothalamus, amygdala, the rest of the forebrain, brain stem and pancreas) were partially purified in SP-cation exchange chromatography and measured in TRF radioimmunoassay. It was found that hypothalamic and amygdaloid TRF contents were highest during the light period of the day, but brain stem TRF had an opposite rhythm. Hypothalamic TRF content rose after 10 min by 14% (p<0.05) when the rats were exposed to transfer stress. During short-time immobilization stress tests, hypothalamic TRF rose by 41% (p<0.05) after a 10-sec immobilization. Cold exposure did not produce any changes in hypothalamic TRF contents within 45 min. Handling stress and time of day appear to be the most important factors influencing the hypothalamic TRF content and have to be taken into account when measuring TRF.

© 1979 S. Karger AG, Basel




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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: December 15, 1978
Accepted: March 08, 1979
Published online: March 26, 2008
Issue release date: 1979

Number of Print Pages: 6
Number of Figures: 0
Number of Tables: 0

ISSN: 0028-3835 (Print)
eISSN: 1423-0194 (Online)

For additional information: https://www.karger.com/NEN


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