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Brain Res. 1995 Sep 4;690(2):241-4.

An anti-tumor necrosis factor antibody suppresses sleep in rats and rabbits.

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1
Department of Physiology and Biophysics, University of Tennessee, Memphis 38163, USA.

Abstract

It is hypothesized that tumor necrosis factor (TNF) is an endogenous sleep-promoting substance. In the present experiments we studied the effects of a monoclonal anti-TNF antibody in rats and rabbits. Seven rats and 14 rabbits were implanted with electroencephalographic electrodes, a brain thermistor and an intracerebroventricular guide cannula. The animals were injected with saline, control IgG, and monoclonal hamster anti-murine-TNF antibodies (TNFab) on 3 separate days. Ten micrograms TNFab suppressed non-rapid-eye-movement sleep (NREMS) in rats. In rabbits, 2.5 micrograms TNFab did not affect sleep but decreased brain temperature; in contrast, 25 micrograms TNFab suppressed NREMS without affecting brain temperature. These results are consistent with the hypothesis that endogenous TNF plays an important role in sleep regulation.

PMID:
8535843
[Indexed for MEDLINE]
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