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sleep
196 studies tagged sleep, dated 1983 to 2026-10-16. Bibliography: BibTeX (.bib) · RIS (.ris)
Newest in this topic
- Progressive neurodegeneration of the locus coeruleus drives rapid eye movement sleep fragmentation 2026-10-16
- REM sleep EEG slowing signals basal forebrain integrity in older adults with subjective and mild cognitive impairment 2026-10-02
- A systems-level model of sleep-dependent memory-consolidation failure in neurodegeneration: the spindle–slow-oscillation decoupling cascade dissociates amyloid and tau 2026-09-29
Studies
196 studies carry this tag.
Date range
1983 to 2026
Top journals
- Alzheimer's & dementia : the journal of the Alzheimer's Association 12
- bioRxiv 7
- medRxiv 7
- Journal of Alzheimer's disease : JAD 6
- Sleep 5
128 journals in all.
Newest first, then by address. Each study has a usefulness score out of 100 (rubric version 4.0); tap a score to see what makes it up. Tags were assigned automatically from each study's title and summary. The same studies as a filter in the library.
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The current review aims to examine melatonin therapy for both sleep disturbances and cognitive function in dementia.
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The prefrontal cortex (PFC) mediates cognitive function that is sensitive to disruption by sleep loss, and molecular mechanisms regulating neural dysfunction induced by chronic sleep restriction (CSR), particularly in the PFC, have yet to be completely understood.
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Sleep is implicated in cognitive functioning in young adults.
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Prevalence studies suggest that Alzheimer’s disease (AD) and dementia with Lewy bodies (DLB) are the most common dementing illnesses in the elderly.
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Circadian rhythms are physiological and behavioural cycles generated by an endogenous biological clock, the suprachiasmatic nucleus.
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Sleep disorders are frequent in Alzheimer's disease (AD), with a significant impact on patients and caregivers and a major risk factor for early institutionalization.
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Several studies have highlighted the frequency of sleep disturbances in Alzheimer's disease (AD).
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38/100
Sleep disturbance is common in patients with dementia.
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Among community-dwelling older adults, reports of shorter sleep duration and poorer sleep quality are associated with greater Aβ burden.
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SA may be a gender-dependent, age-dependent, and time-dependent risk factor for dementia.
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The central noradrenergic neurone, like the peripheral sympathetic neurone, is characterized by a diffusely arborizing terminal axonal network.
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Aggregation of β-amyloid (Aβ) in the brain begins to occur years before the clinical onset of Alzheimer's disease (AD).
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Smoking, head injury, pesticide exposure, and farming are potential risk factors for idiopathic REM sleep behavior disorder.
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Whereas patients with Alzheimer's disease (AD) experience difficulties forming and retrieving memories, their memory impairments may also partially reflect an unrecognized dysfunction in sleep-dependent consolidation that normally stabilizes declarative memory storage across cortical areas.
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First, sleep problems are associated with accidents and human errors.
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The human pineal gland is a neuroendocrine transducer that forms an integral part of the brain.
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36/100
Circadian disturbances, including a fragmented sleep-wake pattern and sundowning, are commonly reported early in the progression of Alzheimer's disease (AD).
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During the last 20 years, numerous clinical trials have examined the therapeutic usefulness of melatonin in different fields of medicine.
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38/100
Bright light is a treatment of choice for seasonal affective disorder.
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36/100
Melatonin, an endogenous signal of darkness, is an important component of the body's internal time-keeping system.
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Light treatment alone did not improve nighttime sleep, daytime wake, or rest-activity rhythm.
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The study of molecular clock mechanisms in psychiatric disorders is gaining significant interest due to data suggesting that a misalignment between the endogenous circadian system and the sleep-wake cycle might contribute to the clinical status of patients suffering from a variety of psychiatric disorders.
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36/100
Sleep has important homeostatic functions, and sleep deprivation is a stressor that has consequences for the brain, as well as many body systems.
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AChEI therapy had a significant effect on the percentage of stage 1 (p = 0.01) and stage 2 (p = 0.03) sleep.
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Alzheimer disease (AD), an age-related neurodegenerative disorder with progressive loss of memory and deterioration of comprehensive cognition, is characterized by extracellular senile plaques of aggregated beta-amyloid (Abeta), and intracellular neurofibrillary tangles that contain hyperphosphorylated tau protein.
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The pineal gland is a central structure in the circadian system which produces melatonin under the control of the central clock, the suprachiasmatic nucleus (SCN).
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Sleep disturbance in AD is associated with other behavioural symptoms, notably aggressiveness.
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The neurotransmitter acetylcholine is considered essential for proper functioning of the hippocampus-dependent declarative memory system, and it represents a major neuropharmacological target for the treatment of memory deficits, such as those in Alzheimer's disease.
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56/100
Based on actigraphy as an objective measure of sleep time, melatonin is not an effective soporific agent in people with Alzheimer's disease.
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Fourteen patients were commenced on melatonin over the specified time period (13 male, median RBD onset age 56 years, range 20-77 years).
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The circadian rhythm of the pineal gland hormone, melatonin is generated within the hypothalamic suprachiasmatic nuclei (SCN), site of the circadian clock.
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Twenty-five out of 44 completed the trial.
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These data indicate that Alzheimer's disease causes disturbances of circadian rhythms and that sundowning is related to a phase delay of body temperature caused by Alzheimer's disease.
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36/100
Older adults represent an ever-growing proportion of the population of the industrialised nations, with a corresponding increase in the numbers of patients with dementing disorders.
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38/100
Melatonin is a hormone synthesized in the pineal gland from tryptophan.
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Sleep-wake rhythm disturbances in patients with Alzheimer's disease (AD) make a strong demand on caregivers and are among the most important reasons for institutionalization.
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Sleep disruption, nightly restlessness, sundowning, and other circadian disturbances are frequently seen in Alzheimer's disease (AD) patients.
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A clinically relevant sleep-wake disturbance is found in up to half the patients with dementia, and the sundowning agitation is a common cause of institutionalisation of demented geriatric patients.
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43/100
Light is known to be an important modulator of circadian rhythms.
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We measured 24-hour circadian-rhythm patterns of activity and sleep/wake activity in a group of nursing-home patients (58 women and 19 men with a mean age of 85.7 years).
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Previous studies showed circadian rhythm disturbances in patients with Alzheimer's disease.
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36/100
Fourteen inpatients with dementia showing sleep and behavior disorders (average age = 75 years), and 10 control elderly people (average age = 75 years) were carefully observed for 2 months.
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Insomnia in elderly people has traditionally been regarded as inevitable and trivial.
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The suprachiasmatic nucleus, considered to be the endogenous circadian clock in the mammalian brain, shows morphological changes with aging, which become even more pronounced in Alzheimer's disease (AD).
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Rapid eye movement (REM) sleep behavior disorder (RBD) is a parasomnia defined by intermittent loss of electromyographic atonia during REM sleep with emergence of complex and vigorous behaviors.
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The relationship of sleep apnea to age, sex, and Alzheimer's dementia was investigated in 45 elderly subjects and 10 young males, all nonobese, normotensive, nonsmoking, with no sleep complaints and no medical problems other than Alzheimer's disease.
From across this tag
8 of the 196 studies in this tag, picked by a fixed rule (a hash of each study's address), not by score or date; each page of this list shows a different 8. The same 8 appear here every time.
- Sleep, Cognitive impairment, and Alzheimer's disease: A Systematic Review and Meta-Analysis
- Identifying and Treating Insomnia in Patients Living With Alzheimer's Disease
- Suprachiasmatic neuron numbers and rest-activity circadian rhythms in older humans
- Alzheimer's Disease in Patients with Obstructive Sleep Apnea Syndrome
- Association of Excessive Daytime Sleepiness With Longitudinal β-Amyloid Accumulation in Elderly Persons Without Dementia
- Circadian Rhythm Sleep-Wake Disorders
- Circadian and Sleep Dysfunctions in Neurodegenerative Disorders-An Update
- Sleep in the Aging Brain