PMID- 18687977 OWN - NLM STAT- MEDLINE DCOM- 20081106 LR - 20220227 IS - 8750-7587 (Print) IS - 1522-1601 (Electronic) IS - 0161-7567 (Linking) VI - 105 IP - 4 DP - 2008 Oct TI - Spontaneous and influenza virus-induced sleep are altered in TNF-alpha double-receptor deficient mice. PG - 1187-98 LID - 10.1152/japplphysiol.90388.2008 [doi] AB - Tumor necrosis factor-alpha (TNF-alpha) is associated with sleep regulation in health and disease. Previous studies assessed sleep in mice genetically deficient in the TNF-alpha 55-kDa receptor. In this study, spontaneous and influenza virus-induced sleep profiles were assessed in mice deficient in both the 55-kDa and 75-kDa TNF-alpha receptors [TNF-2R knockouts (KO)] and wild-type (WT) strain controls. Under baseline conditions the TNF-2R KO mice had less non-rapid eye movement sleep (NREMS) than WTs during the nighttime and more rapid eye movement sleep (REMS) than controls during the daytime. The differences between nighttime maximum and daytime minimum values of electroencephalogram (EEG) delta power during NREMS were greater in the TNF-2R KO mice than in WTs. Viral challenge (mouse-adapted influenza X-31) enhanced NREMS and decreased REMS in both strains roughly to the same extent. EEG delta power responses to viral challenge differed substantially between strains; the WT animals increased, whereas the TNF-2R KO mice decreased their EEG delta wave power during NREMS. There were no differences between strains in body temperatures or locomotor activity in uninfected mice or after viral challenge. Analyses of cortical mRNAs confirmed that the TNF-2R KO mice lacked both TNF-alpha receptors; these mice also had higher levels of orexin mRNA and reduced levels of the purine P2X7 receptor compared with WTs. Results reinforce the hypothesis that TNF-alpha is involved in physiological sleep regulation but plays a limited role in the acute-phase response induced by influenza virus. FAU - Kapas, Levente AU - Kapas L AD - Department of Biological Sciences, Fordham University, Bronx, NY 10458, USA. kapas@fordham.edu FAU - Bohnet, Stewart G AU - Bohnet SG FAU - Traynor, Tim R AU - Traynor TR FAU - Majde, Jeannine A AU - Majde JA FAU - Szentirmai, Eva AU - Szentirmai E FAU - Magrath, Paul AU - Magrath P FAU - Taishi, Ping AU - Taishi P FAU - Krueger, James M AU - Krueger JM LA - eng GR - HD 36520/HD/NICHD NIH HHS/United States GR - NS 31453/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20080807 PL - United States TA - J Appl Physiol (1985) JT - Journal of applied physiology (Bethesda, Md. : 1985) JID - 8502536 RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Neuropeptides) RN - 0 (Orexins) RN - 0 (P2rx7 protein, mouse) RN - 0 (RNA, Messenger) RN - 0 (Receptors, Purinergic P2) RN - 0 (Receptors, Purinergic P2X7) RN - 0 (Receptors, Tumor Necrosis Factor, Type I) RN - 0 (Receptors, Tumor Necrosis Factor, Type II) RN - 0 (Tnfrsf1a protein, mouse) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Animals MH - Body Temperature MH - Cerebral Cortex/*metabolism/physiopathology/virology MH - Disease Models, Animal MH - Electroencephalography MH - Influenza A Virus, H1N1 Subtype/genetics MH - Influenza A Virus, H3N2 Subtype/genetics MH - Intracellular Signaling Peptides and Proteins/metabolism MH - Mice MH - Mice, Knockout MH - Motor Activity MH - Neuropeptides/metabolism MH - Orexins MH - Orthomyxoviridae Infections/*metabolism/physiopathology/virology MH - RNA, Messenger/metabolism MH - Receptors, Purinergic P2/metabolism MH - Receptors, Purinergic P2X7 MH - Receptors, Tumor Necrosis Factor, Type I/deficiency/genetics/*metabolism MH - Receptors, Tumor Necrosis Factor, Type II/deficiency/genetics/*metabolism MH - *Sleep Stages MH - Time Factors MH - Tumor Necrosis Factor-alpha/*metabolism PMC - PMC2576045 EDAT- 2008/08/09 09:00 MHDA- 2008/11/07 09:00 PMCR- 2009/10/01 CRDT- 2008/08/09 09:00 PHST- 2008/08/09 09:00 [pubmed] PHST- 2008/11/07 09:00 [medline] PHST- 2008/08/09 09:00 [entrez] PHST- 2009/10/01 00:00 [pmc-release] AID - 90388.2008 [pii] AID - JAPPL-90388-2008 [pii] AID - 10.1152/japplphysiol.90388.2008 [doi] PST - ppublish SO - J Appl Physiol (1985). 2008 Oct;105(4):1187-98. doi: 10.1152/japplphysiol.90388.2008. Epub 2008 Aug 7.