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Metabolic and Cognitive Parameters Following Partial Sleep Deprivation

27 novembre 2014 aggiornato da: Uppsala University

Metabolic and Cognitive Effects of Sleep Deprivation

The purpose of this study is to determine whether partial sleep deprivation, as compared with normal sleep, influences certain metabolic and cognitive parameters, related to food intake, hunger and memory functions, when participants are shielded from external time cues.

Panoramica dello studio

Descrizione dettagliata

It is predicted that partial sleep deprivation negatively affects the hormonal status, e.g. upregulating ghrelin and other hunger-promoting hunger hormones, while showing impaired memory functions. It is also predicted that participants will tend to increase their desired portion sizes after partial sleep deprivation, compared with after a normal night's sleep.

Tipo di studio

Interventistico

Iscrizione (Anticipato)

20

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

      • Uppsala, Svezia, 75105
        • Reclutamento
        • Department of Neuroscience, Uppsala University
        • Contatto:
          • Jonathan Cedernaes, M.D, PhD
        • Contatto:
          • Christian Benedict, PhD
        • Investigatore principale:
          • Christian Benedict, PhD

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 20 anni a 28 anni (Adulto)

Accetta volontari sani

No

Sessi ammissibili allo studio

Maschio

Descrizione

Inclusion Criteria:

  • Male
  • Age 20-28y
  • Healthy (self-reported) and not on medication
  • Non-smoking
  • Normal sleep-wake rhythm (i.e. 7-8 h per night, self-reported and verified by sleep diaries)
  • Normal dietary habits (regular meal pattern with daily breakfast)

Exclusion Criteria:

  • Major illness
  • Taking any serious medications
  • Any sleep conditions (e.g. irregular bedtimes, sleep complaints)
  • Any dietary issues with the food items provided
  • A history of endocrine, neurological or psychiatric disorders
  • Shift work in the previous 3 months
  • Travel over several time zones within the previous two months

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Scienza basilare
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione incrociata
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Partial sleep deprivation
Partial sleep deprivation: participants will have a 4-h sleep opportunity before a 'Blood Sample' will be taken, and the 'Memory tasks', 'Working memory function task' and 'Portion size task' will be performed. This will be followed by an 'Interference task', followed by repeated blood sampling and an 'Intake task'.
Ai partecipanti viene fornito un programma per computer che offre loro l'opportunità di scegliere le porzioni di una varietà di prodotti alimentari che idealmente vorrebbero consumare
In the morning following partial sleep deprivation or normal sleep, a blood sample will be taken to assess the level of metabolism-linked and neurodegenerative-linked molecules, as well as to assay blood serum and plasma for the presence of hormones involved in hunger such as ghrelin
30-minute interference task
Participants will be allowed to learn a procedural memory task before going to bed. Participants will be retested in the morning to assess their change in performance. Other memory tests will also be given to assess the working memory performance in the morning following the intervention.
After a normal night of sleep or partial sleep deprivation, participants are presented with an ad libitum meal choice and can select the amount to ingest during a limited time window. Amount and selection will be recorded
Participants will be evaluated on their working memory performance in the morning following either nighttime intervention (NS or PSD)
Sperimentale: Normal sleep
Normal sleep: participants will have an 8-h sleep opportunity before a 'Blood Sample' will be taken, and the 'Memory tasks', 'Working memory function task' and 'Portion size task' will be performed. This will be followed by an 'Interference task', followed with repeated blood sampling and an 'Intake task'.
Ai partecipanti viene fornito un programma per computer che offre loro l'opportunità di scegliere le porzioni di una varietà di prodotti alimentari che idealmente vorrebbero consumare
In the morning following partial sleep deprivation or normal sleep, a blood sample will be taken to assess the level of metabolism-linked and neurodegenerative-linked molecules, as well as to assay blood serum and plasma for the presence of hormones involved in hunger such as ghrelin
30-minute interference task
Participants will be allowed to learn a procedural memory task before going to bed. Participants will be retested in the morning to assess their change in performance. Other memory tests will also be given to assess the working memory performance in the morning following the intervention.
After a normal night of sleep or partial sleep deprivation, participants are presented with an ad libitum meal choice and can select the amount to ingest during a limited time window. Amount and selection will be recorded
Participants will be evaluated on their working memory performance in the morning following either nighttime intervention (NS or PSD)

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Memory tasks
Lasso di tempo: Change in memory performance between learning (at 2230 hours in NS and PSD condition) before going to sleep, and at 0800 and 0930 hours (following PSD or NS)
Procedural memory performance after learning a procedural memory task close to going to bed, followed by either partial sleep deprivation (PSD) or normal sleep (NS), and comparing the performance the following morning at two time points. Participants spatial memory performance in the morning at two time points, following PSD will also be compared with that following NS, after having learned such a memory task in the evening before going to bed.
Change in memory performance between learning (at 2230 hours in NS and PSD condition) before going to sleep, and at 0800 and 0930 hours (following PSD or NS)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Circulating hormone levels
Lasso di tempo: Change in circulating hormone levels and other metabolism-linked and neurodegeneration-associated molecules at 0730, 0830, 0910, 0925, 0940, 1010, 1040, 1105, and 1150 hours following the respective nighttime intervention and after the interference task
Interference task given at 0900 hours
Change in circulating hormone levels and other metabolism-linked and neurodegeneration-associated molecules at 0730, 0830, 0910, 0925, 0940, 1010, 1040, 1105, and 1150 hours following the respective nighttime intervention and after the interference task
Intake task
Lasso di tempo: Change in intake at around 1200 hours, following the respective nighttime intervention (NS or PSD)
Participants are presented with an ad libitum meal choice and can select the amount to ingest during a limited time window. Amount and selection will be recorded.
Change in intake at around 1200 hours, following the respective nighttime intervention (NS or PSD)
Working memory function task
Lasso di tempo: Change in memory performance at 0800 hours and after the interference task again at 0930 hours (between and following PSD or NS)
Participants will be evaluated on their working memory performance in the morning following either nighttime intervention (NS or PSD) and before and after an interference task
Change in memory performance at 0800 hours and after the interference task again at 0930 hours (between and following PSD or NS)
Portion Size Task
Lasso di tempo: Change in selected portion size from baseline (at 0800 hours following the nighttime intervention), to one hour later, i.e. after an interference task
Participants will be evaluated on their tendency to choose larger or smaller portions of a variety of meal items on a computer screen. This will be conducted both following partial sleep deprivation and normal sleep, and changes before and after a short interference task will be compared between these two conditions.
Change in selected portion size from baseline (at 0800 hours following the nighttime intervention), to one hour later, i.e. after an interference task

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Investigatori

  • Investigatore principale: Christian Benedict, PhD, Department of Neuroscience, Uppsala University

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 aprile 2013

Completamento primario (Anticipato)

1 marzo 2015

Completamento dello studio (Anticipato)

1 marzo 2015

Date di iscrizione allo studio

Primo inviato

21 febbraio 2013

Primo inviato che soddisfa i criteri di controllo qualità

28 marzo 2013

Primo Inserito (Stima)

4 aprile 2013

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

2 dicembre 2014

Ultimo aggiornamento inviato che soddisfa i criteri QC

27 novembre 2014

Ultimo verificato

1 novembre 2014

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • SleepPartialJCCB2013

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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