Cardiovascular Risk Factors and Phenoconversion to Neurodegenerative Synucleinopathies in Idiopathic REM Sleep Behavior Disorder

2022 ◽  
pp. 1-7
Author(s):  
Sheida Zolfaghari ◽  
Natalia Lewandowski ◽  
Amelie Pelletier ◽  
Seyed Ali Naeimi ◽  
Jean-François Gagnon ◽  
...  
Keyword(s):  
Risk Factors ◽  
Rem Sleep ◽  
Dementia With Lewy Bodies ◽  
Lewy Bodies ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Metabolic Risk ◽  
Sleep Behavior ◽  
History Of ◽  
Atherosclerotic Risk Factors

Several studies have suggested that atherosclerotic diseases and diabetes may be risk factors for α-synucleinopathies. This prospective cohort study evaluated whether cardiovascular diseases and metabolic risk factors alter the rate or type of phenoconversion from idiopathic/isolated REM sleep behavior disorder (iRBD) to parkinsonism or dementia. Polysomnography-confirmed iRBD patients recruited between 2004 and 2020 were followed annually. Baseline history of cardiovascular disorders, hypertension, hypercholesterolemia, and diabetes were compared among patients who developed outcomes versus those who remained outcome-free. No atherosclerotic risk factors were associated with development of α-synucleinopathies. Patients with hypercholesterolemia were somewhat more likely to develop dementia with Lewy bodies rather than Parkinson’s disease.

Severe Brain Metabolic Decreases Associated with REM Sleep Behavior Disorder in Dementia with Lewy Bodies

2016 ◽  
Vol 52 (3) ◽  
pp. 989-997 ◽  
Author(s):  
Leonardo Iaccarino ◽  
Sara Marelli ◽  
Sandro Iannaccone ◽  
Giuseppe Magnani ◽  
Luigi Ferini-Strambi ◽  
...  
Keyword(s):  
Rem Sleep ◽  
Dementia With Lewy Bodies ◽  
Lewy Bodies ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Sleep Behavior

scholarly journals REM Sleep Behavior Disorder (RBD) in Dementia with Lewy Bodies (DLB)

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Po-Chi Chan ◽  
Hsun-Hua Lee ◽  
Chien-Tai Hong ◽  
Chaur-Jong Hu ◽  
Dean Wu
Keyword(s):  
Eye Movement ◽  
Rem Sleep ◽  
Dementia With Lewy Bodies ◽  
Clinical Manifestations ◽  
Lewy Bodies ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Rapid Eye Movement ◽  
Sleep Behavior ◽  
Neurologic Disorders

Rapid eye movement sleep behavior disorder (RBD) is a parasomnia, with abnormal dream-enacting behavior during the rapid eye movement (REM) sleep. RBD is either idiopathic or secondary to other neurologic disorders and medications. Dementia with Lewy bodies (DLB) is the third most common cause of dementia, and the typical clinical presentation is rapidly progressive cognitive impairment. RBD is one of the core features of DLB and may occur either in advance or simultaneously with the onset of DLB. The association between RBD with DLB is widely studied. Evidences suggest that both DLB and RBD are possibly caused by the shared underlying synucleinopathy. This review article discusses history, clinical manifestations, possible pathophysiologies, and treatment of DLB and RBD and provides the latest updates.

scholarly journals Smaller pineal gland is associated with rapid eye movement sleep behavior disorder in Alzheimer’s disease

2020 ◽  
Author(s):  
Jeongbin Park ◽  
Seung Wan Suh ◽  
Grace Eun Kim ◽  
Subin Lee ◽  
Jun Sung Kim ◽  
...  
Keyword(s):  
Pineal Gland ◽  
Eye Movement ◽  
Rem Sleep ◽  
Dementia With Lewy Bodies ◽  
Lewy Bodies ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Rapid Eye Movement ◽  
Sleep Behavior ◽  
Gland Volume

Abstract Background: To investigate the association between pineal gland volume and symptoms of rapid eye movement (REM) sleep behavior disorder (RBD) in Alzheimer’s disease (AD) patients without any feature of dementia with Lewy bodies.Methods: We enrolled 296 community-dwelling probable AD patients who did not meet the diagnostic criteria for possible or probable dementia with Lewy bodies. Among them, 93 were amyloid beta (Aβ) positive on 18F-florbetaben amyloid brain positron emission tomography. We measured RBD symptoms using the REM Sleep Behavior Disorder Screening Questionnaire (RBDSQ) and defined probable RBD (pRBD) as the RBDSQ of 5 or higher. We manually segmented pineal gland on 3T structural T1-weighted brain magnetic resonance imaging.Results: The participants with pRBD had smaller pineal parenchyma volume (VPP) than those without pRBD (p < 0.001). The smaller the VPP, the more severe the RBD symptoms (p < 0.001). VPP was inversely associated with risk of prevalent pRBD (odds ratio = 0.909, 95% confidence interval [CI] = 0.878–0.942, p < 0.001). Area under the receiver operator characteristic curve for pRBD of VPP was 0.80 (95% CI = 0.750–0.844, p < 0.0001). These results were not changed when we analyzed the 93 participants with Aβ-positive AD separately.Conclusions: In AD patients, reduced pineal gland volume may be associated with RBD.

scholarly journals Risk factors for possible REM sleep behavior disorders

Neurology ◽  
2020 ◽  
Vol 95 (16) ◽  
pp. e2214-e2224
Author(s):  
Hui Zhang ◽  
Zhuqin Gu ◽  
Chun Yao ◽  
Yanning Cai ◽  
Yuan Li ◽  
...  
Keyword(s):  
Risk Factors ◽  
Family History ◽  
Rem Sleep ◽  
Positive Family History ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Multivariable Logistic Regression Analysis ◽  
Co Poisoning ◽  
Sleep Behavior ◽  
History Of

ObjectiveTo explore the risk factors for idiopathic REM sleep behavior disorder (RBD) in a community population in Beijing.MethodsParticipants aged 55 years and above were recruited from the Beijing Longitudinal Study on Aging II cohort. We identified individuals with possible RBD (pRBD) using the validated RBD Questionnaire–Hong Kong in 2010. A series of environmental, lifestyle, and other potential risk factors were assessed via standardized questionnaires in 2009. Multivariable logistic regression analysis was performed to investigate the association between the studied factors and pRBD.ResultsOf 7,225 participants who were free of parkinsonism and dementia, 219 (3.0%) individuals were considered as having pRBD. Participants with pRBD reported more nonmotor and motor symptoms of Parkinson disease (PD) with adjusted odds ratios (ORs) ranging from 1.10 to 4.40. Participants with pRBD were more likely to report a family history of parkinsonism or dementia (OR 3.03, 95% confidence interval [CI] 1.23–7.46). There was a significant association between pRBD and self-reported hyperlipidemia (OR 1.51, 95% CI 1.09–2.10), ever smoking (OR 1.79, 95% CI 1.20–2.65), prior carbon monoxide (CO) poisoning (OR 2.30, 95% CI 1.39–3.83), and nonoccupational exposure to pesticides (OR 2.21, 95% CI 1.40–3.50).ConclusionOur study replicated previously reported associations between pRBD and hyperlipidemia, smoking, pesticide exposure, and several prodromal PD symptoms. We also found previously unreported links with a positive family history of parkinsonism or dementia and CO poisoning. Risk factor profiles for pRBD partially resemble those defined for PD, but also differ in distinct ways.

How does dementia with Lewy bodies start? prodromal cognitive changes in REM sleep behavior disorder

2018 ◽  
Vol 83 (5) ◽  
pp. 1016-1026 ◽  
Author(s):  
Daphné Génier Marchand ◽  
Ronald B. Postuma ◽  
Frédérique Escudier ◽  
Jessie De Roy ◽  
Amélie Pelletier ◽  
...  
Keyword(s):  
Rem Sleep ◽  
Dementia With Lewy Bodies ◽  
Lewy Bodies ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Cognitive Changes ◽  
Sleep Behavior

scholarly journals Detecting the Cognitive Prodrome of Dementia with Lewy Bodies: A Prospective Study of REM Sleep Behavior Disorder

SLEEP ◽  
2016 ◽  
Vol 40 (1) ◽  
Author(s):  
Daphné Génier Marchand ◽  
Jacques Montplaisir ◽  
Ronald B. Postuma ◽  
Shady Rahayel ◽  
Jean-François Gagnon
Keyword(s):  
Prospective Study ◽  
Rem Sleep ◽  
Dementia With Lewy Bodies ◽  
Lewy Bodies ◽  
Rem Sleep Behavior Disorder ◽  
Behavior Disorder ◽  
Sleep Behavior ◽  
A Prospective Study
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