Effects of Sleep Deprivation on Cerebrospinal Fluid (CSF) Amyloid-beta (Aβ) Dynamics (AWAKE)
Losing Sleep Over Alzheimer's Disease? Effects of Sleep Deprivation on Cerebrospinal Fluid Amyloid-beta Dynamics
Introduction: Alzheimer's disease (AD) is characterized by neurodegeneration of the brain in the form of neurofibrillary tangles and plaques containing the amyloid-beta protein (Abeta). Recent animal studies have shown that extended wakefulness is associated with increased production of these Abeta proteins and that sleep leads to a marked fall in their production.
Aim: The investigators aim to distinguish a similar effect of sleep disturbance on cerebrospinal fluid (CSF) Abeta levels in humans, which may point out sleep disturbance as an important factor in AD development.
Methods: a study in 26 healthy male volunteers, measuring CSF Abeta levels during a sleep deprivation night and before and after a control night with unrestricted sleep.
Expected results: The investigators expect sleep deprivation to lead to an increase in CSF Abeta levels, as compared to the levels in the control night.
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
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Gelderland
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Nijmegen, Gelderland, Holland, 6500HB
- Clinical Research Centre Nijmegen
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Written informed consent
- Age 40-60 years
- Male
- Subject is in good health as established by medical history, physical examination, ECG and laboratory examination
- Laboratory parameters (as described on in section 3.7 screening) should be within the normal ranges as applicable in RUNMC, Nijmegen, or clinically acceptable to the investigator
- Normal sleep behaviour, Pittsburg Sleep Quality index score ≤5
- MMSE 28 or higher
- Medication free
Exclusion Criteria:
- Presence of blood coagulopathy, established by medical history
- Allergy to local anesthetic agents
- Contra-indication for spinal catheter placement: medical history of compression of spinal cord, spinal surgery, skin infection, developmental abnormalities in lower spine
- Subjects who are currently participating in another study or have participated in a clinical study within 30 days, based on their own report about participation history
- Subjects with a history of drug or alcohol abuse
- Subjects who are part of the study staff personnel or family members of the study staff personnel
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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Aktiv komparator: Sleep deprivation
13 subjects will undergo full sleep deprivation these subjects are blind to allocation ntil they enter the study center |
subjects will undergo one night of full sleep deprivation
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Ingen indgriben: Control night
control night of unrestricted sleep in 13 other subjects
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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Amyloid beta
Tidsramme: 6 timepoints during one night of sleep deprivation
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Subjects will undergo one night of sleep deprivation before, during and after which a total of 9 CSF samples (6ml each) will be drawn through a spinal catheter.
From these CSF samples Amyloid beta will be analysed.
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6 timepoints during one night of sleep deprivation
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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- AWAKE32920
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