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Effects of sustained sleep restriction on mitogen-stimulated cytokines, chemokines and T helper 1/ T helper 2 balance in humans
Stockholm University, Faculty of Social Sciences, Stress Research Institute. (Biologisk psykologi och behandlingsforskning)
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2013 (English)In: PloS one, ISSN 1932-6203, Vol. 8, no 12, e82291- p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Recent studies suggest that acute sleep deprivation disrupts cellular immune responses by shifting T helper (Th) cell activity towards a Th2 cytokine profile. Since little is known about more long-term effects, we investigated how five days of sleep restriction would affect pro-inflammatory, chemotactic, Th1- and Th2 cytokine secretion.

METHODS: Nine healthy males participated in an experimental sleep protocol with two baseline sleep-wake cycles (sleep 23.00 - 07.00 h) followed by 5 days with restricted sleep (03.00 - 07.00 h). On the second baseline day and on the fifth day with restricted sleep, samples were drawn every third hour for determination of cytokines/chemokines (tumor necrosis factor alpha (TNF-α), interleukin (IL) -1β, IL-2, IL-4 and monocyte chemoattractant protein-1 (MCP-1)) after in vitro stimulation of whole blood samples with the mitogen phytohemagglutinin (PHA). Also leukocyte numbers, mononuclear cells and cortisol were analysed.

RESULTS: 5-days of sleep restriction affected PHA-induced immune responses in several ways. There was a general decrease of IL-2 production (p<.05). A shift in Th1/Th2 cytokine balance was also evident, as determined by a decrease in IL2/IL4 ratio. No other main effects of restricted sleep were shown. Two significant interactions showed that restricted sleep resulted in increased TNF-α and MCP-1 in the late evening and early night hours (p's<.05). In addition, all variables varied across the 24 h day.

CONCLUSIONS: 5-days of sleep restriction is characterized by a shift towards Th2 activity (i.e. lower 1L-2/IL-4 ratio) which is similar to the effects of acute sleep deprivation and psychological stress. This may have implications for people suffering from conditions characterized by excessive Th2 activity like in allergic disease, such as asthma, for whom restricted sleep could have negative consequences.

Place, publisher, year, edition, pages
San Francisco: Public Library of Science , 2013. Vol. 8, no 12, e82291- p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:su:diva-98425DOI: 10.1371/journal.pone.0082291ISI: 000328730300087PubMedID: 24349251Local ID: P3072OAI: diva2:683884

AuthorCount: 7

Funding agencies:

Swedish Tercentary Fund J2001-0462:1, J2001-0462:3; Swedish Working Life Fund 2002-0461; Swedish Society for Medical Research;  Swedish Sleep Research Society;  Swedish Heart Lung Foundation;  Swedish Asthma and Allergy Association;  Swedish Sleep Research Society in Sweden  

Available from: 2014-01-07 Created: 2014-01-07 Last updated: 2014-01-31Bibliographically approved

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Åkerstedt, TorbjörnLekander, Mats
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