Journal article
Acidic fibroblast growth factor (FGF) but not basic FGF induces sleep and fever in rabbits
American journal of physiology. Regulatory, integrative and comparative physiology, Vol.269(1), pp.R87-R91
07/01/1995
Handle:
https://hdl.handle.net/2376/114786
PMID: 7543260
Abstract
Acidic fibroblast growth factor (FGF) and basic FGF belong to a growth factor family. Interleukin-1, another member of that family, is involved in sleep regulation. FGFs and interleukin-1 share structural and functional features. We therefore determined whether acidic FGF and basic FGF were somnogenic. Male New Zealand White rabbits were provided with electroencephalographic (EEG) electrodes, a brain thermistor, and a lateral intracerebroventricular (icv) cannula. The animals were injected icv with isotonic NaCl (control) and on separate days with one of three doses of acidic or basic FGF (0.01, 0.1, or 1.0 micrograms) or with heat-treated acidic FGF (1.0 micrograms). The EEG, brain temperature, and motor activity were recorded for 23 h. The biological activity of basic FGF was determined in vitro by its ability to induce DNA synthesis in rat aortic smooth muscle cells. Acidic FGF induced prolonged dose-related increases in non-rapid eye movement sleep beginning in the 1st postinjection h and continuing for 12-23 h after the treatment. Acidic FGF also induced fevers of approximately 1 degree C after the 1.0 micrograms dose. Both activities of acidic FGF were lost after heat treatment. In contrast, basic FGF lacked somnogenic and pyrogenic activity, although it did induce DNA synthesis. Current results suggest that acidic FGF is part of the complex cytokine network in brain involved in sleep regulation.
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Details
- Title
- Acidic fibroblast growth factor (FGF) but not basic FGF induces sleep and fever in rabbits
- Creators
- M Knefati - Department of Neurology, University of Tennessee, Memphis 38163,USAC Somogyi - Department of Neurology, University of Tennessee, Memphis 38163,USAL Kapas - Department of Neurology, University of Tennessee, Memphis 38163,USAT Bourcier - Department of Neurology, University of Tennessee, Memphis 38163,USAJ. M Krueger - Department of Neurology, University of Tennessee, Memphis 38163,USA
- Publication Details
- American journal of physiology. Regulatory, integrative and comparative physiology, Vol.269(1), pp.R87-R91
- Academic Unit
- Biomedical Sciences, Department of; Integrative Physiology and Neuroscience, Department of
- Identifiers
- 99900547761801842
- Language
- English
- Resource Type
- Journal article