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The Importance of Sleep Quality and the Blood-brain Barrier in Cognitive Disorders and Alzheimer's Disease

25. juli 2022 oppdatert av: Oliver Peters, MD, Charite University, Berlin, Germany
The aim of our study is the analysis of sleep phases and quality as well as the detection of respiratory pauses in subjects with cognitive disorder. To assess whether sleep quality is associated with the blood-brain barrier and Alzheimer's disease, which may be indicative of an early, non-invasively measurable change in brain activity in the early stages of Alzheimer's disease.

Studieoversikt

Status

Tilbaketrukket

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

The aim of our study is the analysis of sleep phases and quality as well as the detection of respiratory pauses in subjects with cognitive disorder. To assess whether sleep quality is associated with the blood-brain barrier and Alzheimer's disease, which may be indicative of an early, non-invasively measurable change in brain activity in the early stages of Alzheimer's disease.

Sleep quality impairment is a known risk factor for memory impairment. There is increasing evidence of a link between measurable sleep parameters, in particular a reduction of slow waves of deep sleep in cognitive deficits. Also, breathing pauses during sleep are associated with increased daytime sleepiness and cognitive impairment. This observational study is intended to establish a possible link between subjective memory disturbances and altered sleep quality or respiratory breaks during sleep. In the run-up to this study, they performed a special MRI scan of the head and a lumbar puncture (removal of nerve water) in a different context. The aim of this imaging study and the new biomarker in brain water was to investigate the function of the blood-brain barrier that occurs in Alzheimer's disease. The results of the studies on the quality of sleep should be evaluated in the context of this study in connection with the findings of the MRI examination and lumbar puncture.

Studietype

Observasjonsmessig

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

  • Tyskland
      • Berlin, Tyskland, 10117
        • Charité Universitätsmedizin Berlin

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

60 år og eldre (Voksen, Eldre voksen)

Tar imot friske frivillige

Ja

Kjønn som er kvalifisert for studier

Alle

Prøvetakingsmetode

Sannsynlighetsprøve

Studiepopulasjon

A description of the study population is provided by DZNE - Longitudinal Cognitive Impairment and Dementia Study (DELCODE).

Beskrivelse

The eligibility criteria are defined by the study protocol from the observational study DZNE - Longitudinal Cognitive Impairment and Dementia Study (DELCODE).

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Mild cognitive impairment
Individuals who show deficits in neuropsychological test procedures but who do not exhibit substantial problems in daily life. Those individuals are part of the DELCODE cohort and were initially recruited in a memory clinic.
Diagnostisk test: Diagnostic Test
Diagnostic Test: Contrast agentenhanced MRI using Gadovist by using the contrast agent Gadovist we aim to visualize the blood-brain barrier. Furthermore, we aim to measure a newly developed biomarker of the blood-brain barrier in the cerebro-spinal fluid. And sleep quality measurement with a polysomnography.
Dementia due to Alzheimer's disease
Individuals diagnosed with dementia due to Alzheimer's disease by relying on anamnesis, neuropsychological test results, results of MRI and biomarkers found in the cerebrospinal fluid. Those individuals are part of the DELCODE cohort and were initially recruited in a memory clinic.
Diagnostisk test: Diagnostic Test
Diagnostic Test: Contrast agentenhanced MRI using Gadovist by using the contrast agent Gadovist we aim to visualize the blood-brain barrier. Furthermore, we aim to measure a newly developed biomarker of the blood-brain barrier in the cerebro-spinal fluid. And sleep quality measurement with a polysomnography.
Healthy controls
Healthy controls recruited through public advertisement.
Diagnostisk test: Diagnostic Test
Diagnostic Test: Contrast agentenhanced MRI using Gadovist by using the contrast agent Gadovist we aim to visualize the blood-brain barrier. Furthermore, we aim to measure a newly developed biomarker of the blood-brain barrier in the cerebro-spinal fluid. And sleep quality measurement with a polysomnography.
Siblings of people with Alzheimer's dementia
Siblings of people with Alzheimer's dementia recruited through public advertisement
Diagnostisk test: Diagnostic Test
Diagnostic Test: Contrast agentenhanced MRI using Gadovist by using the contrast agent Gadovist we aim to visualize the blood-brain barrier. Furthermore, we aim to measure a newly developed biomarker of the blood-brain barrier in the cerebro-spinal fluid. And sleep quality measurement with a polysomnography.
Subjective cognitive decline
Individuals who subjectively experience cognitive decline but do not show deficits in age-, sex- and education-normed neuropsychological test results. Those individuals are part of the DELCODE cohort and were initially recruited in a memory clinic.
Diagnostisk test: Diagnostic Test
Diagnostic Test: Contrast agentenhanced MRI using Gadovist by using the contrast agent Gadovist we aim to visualize the blood-brain barrier. Furthermore, we aim to measure a newly developed biomarker of the blood-brain barrier in the cerebro-spinal fluid. And sleep quality measurement with a polysomnography.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Marker of blood-brain dysfunction using MRI
Tidsramme: 1 day
Dynamic T1 contrast enhanced sequence using Gadovist
1 day
Markers of blood-brain dysfunction using CSF
Tidsramme: 1 day
Platelet-derived growth factor receptor-β in CSF
1 day
Sleep quality measurement
Tidsramme: 2 day
Polysomnography
2 day

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Charite University, Berlin, Germany

Samarbeidspartnere

Arda Can Cetindag
Lukas Preis

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

12. september 2019

Primær fullføring (Forventet)

31. desember 2019

Studiet fullført (Forventet)

31. desember 2019

Datoer for studieregistrering

Først innsendt

18. september 2019

Først innsendt som oppfylte QC-kriteriene

18. september 2019

Først lagt ut (Faktiske)

19. september 2019

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

27. juli 2022

Siste oppdatering sendt inn som oppfylte QC-kriteriene

25. juli 2022

Sist bekreftet

1. juli 2022

Mer informasjon

Begreper knyttet til denne studien

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • BBB-Sleep

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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