Subjective sleep parameters in prodromal Alzheimer's disease: a case-control study
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
;
43(5): 510-513, Sept.-Oct. 2021. tab
Article
Dans Anglais
| LILACS
| ID: biblio-1345479
ABSTRACT
Objective:
People with Alzheimer's disease (AD) dementia have impaired sleep. However, the characteristics of sleep in the early stages of AD are not well known, and studies with the aid of biomarkers are lacking. We assessed the subjective sleep characteristics of non-demented older adults and compared their amyloid profiles.Methods:
We enrolled 30 participants aged ≥ 60 years, with no dementia or major clinical and psychiatric diseases. They underwent [11C]PiB-PET-CT, neuropsychological evaluations, and completed two standardized sleep assessments (Pittsburgh Sleep Quality Inventory and Epworth Sleep Scale).Results:
Comparative analysis of subjective sleep parameters across the two groups showed longer times in bed (p = 0.024) and reduced sleep efficiency (p = 0.05) in individuals with positive amyloid. No differences in other subjective sleep parameters were observed. We also found that people with multiple-domain mild cognitive impairment (MCI) had shorter self-reported total sleep times (p = 0.034) and worse overall sleep quality (p = 0.027) compared to those with single-domain MCI.Conclusions:
Older adults testing positive for amyloid had a longer time in bed and lower sleep efficiency, regardless of cognitive status. In parallel, individuals with multiple-domain MCI reported shorter sleep duration and lower overall sleep quality.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Maladie d'Alzheimer
/
Dysfonctionnement cognitif
Type d'étude:
Étude observationnelle
Limites du sujet:
Adulte très âgé
/
Humains
langue:
Anglais
Texte intégral:
Braz. J. Psychiatry (São Paulo, 1999, Impr.)
Thème du journal:
Psychiatrie
Année:
2021
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Departamento de Neurologia, Universidade de São Paulo (USP)/BR
/
Departamento de Psicobiologia, Universidade Federal de São Paulo (UNIFESP)/BR
/
Instituto de Radiologia, USP/BR
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