Cited by 92Sleep and Wakefulness ResearchSleep and related disordersCircadian rhythm and melatonin

Altered Skin-Temperature Regulation in Narcolepsy Relates to Sleep Propensity

Fronczek, Rolf, Overeem, Sebastiaan, Lammers, Gert Jan, van Dijk, J. Gert, van Someren, Eus J. W.·2006·Sleep

Abstract

STUDY OBJECTIVES: In healthy subjects, sleep propensity increases when the distal skin temperature increases relative to the proximal skin temperature. This increase results from increased blood flow in the skin of the extremities and is, among other factors, controlled by the hypothalamic circadian clock, as is sleep. Because narcolepsy is characterized by hypothalamic alterations, we studied skin temperature in narcoleptic patients in relation to their characteristically increased sleep propensity during the day. DESIGN: Distal and proximal skin temperature and their gradient (DPG) were measured during a Multiple Sleep Latency Test. This allowed temperature to be studied during wakefulness, at sleep onset and during sleep. SETTING: Tertiary narcolepsy referral center in a university hospital. PATIENTS: Fifteen unmedicated narcolepsy patients with cataplexy and 15 controls. INTERVENTIONS: None. MEASUREMENTS AND RESULTS: In subjects in the waking state, DPG was higher in narcoleptics than in controls throughout the day (time by group interaction, p < .0001), due to increased distal skin temperature and decreased proximal skin temperature. The increase in DPG was related to a shorter subsequent sleep-onset latency (p = .02). Once asleep, narcoleptics maintained their elevated distal skin temperature and DPG (p < .0001), whereas proximal skin temperature increased to reach normal levels. CONCLUSIONS: This is the first demonstration of a dramatic alteration of daytime skin temperature control in narcolepsy. Even awake narcoleptic patients showed a DPG higher than that which healthy controls achieve when asleep. This observation suggests that hypocretin deficiency in narcolepsy affects skin-temperature regulation and invites further examination. Skin-temperature control might ultimately even have therapeutic implications for the alleviation of narcoleptic symptoms.

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Crossref · 10.1093/sleep/29.11.1444

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  • In narcoleptic patients, skin temperature is correlated with daytime sleep propensity.

    “and for narcoleptic patients, where skin temperature is correlated to their daytime sleep propensity [32].”

    From Sleep, vigilance, and thermosensitivity (2012) · cites this paper as [32]

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Authors
Fronczek, R., Overeem, S., Lammers, G. J., van Dijk, J. G., & van Someren, E. J. W.
Affiliations
  • Netherlands Institute for Neuroscience (NL)
  • Leiden University Medical Center (NL)
Corresponding author
Fronczek, Rolf
Venue
Sleep
Published
2006-11
Volume
29
Issue
11
Pages
1444-1449
ISSN
  • 0161-8105 (ISSN-L)
  • 1550-9109
OpenAlex
W1703677612
Cited by
92
References
42
Citations by year
2026: 3 · 2025: 4 · 2024: 2 · 2023: 3 · 2022: 3 · 2021: 8 · 2020: 6 · 2019: 6 · 2018: 3 · 2017: 3 · 2016: 4 · 2015: 5 · 2014: 3 · 2013: 6 · 2012: 4
FWCI
3.24
Type
journal article
Language
en
Open access
closed
Locations
  • SLEEP (publishedVersion)
  • PubMed (publishedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
narcolepsy, skin temperature regulation, sleep propensity, sleep latency, hypocretin deficiency, cataplexy, multiple sleep latency test
MeSH terms
Adult, Body Temperature Regulation, Cataplexy, Circadian Rhythm, Female, Foot, Hand, Humans, Hypothalamus, Male, Narcolepsy, Reaction Time, Reference Values, Regional Blood Flow, Skin, Skin Temperature, Sleep, Wakefulness, Polysomnography

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