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Plasma urate concentrations and possible REM sleep behavior disorder.

ABSTRACT: OBJECTIVE:To examine how urate concentrations are related to the risk of having possible REM sleep behavior disorder (pRBD) in a community-based cohort. METHODS:The study included 12,923 Chinese adults of the Kailuan Study, free of Parkinson disease (PD) and dementia. Plasma urate concentrations were measured in 2006, 2008, and 2010. Cumulative average urate concentration was used as primary exposure. In 2012, we determined pRBD status using a validated RBD questionnaire-Hong Kong (RBDQ-HK). Logistic regression analysis was performed to estimate the association between urate concentrations during 2006-2010 and odds of having pRBD in 2012 or pRBD case with symptom onset within 1 year. RESULTS:Higher average urate concentrations were associated with a lower odds of pRBD (P-trend <0.001). The adjusted odds ratio (OR), for the highest versus lowest urate quintiles, was 0.43 (95% confidence intervals (CIs) 0.32-0.57). Significant association was consistently observed when we examined the association of a single urate assessment (2006 or 2010) or the rate of change in urate concentrations during 2006-2010 with pRBD (P-trend <0.001 for all). However, restricting to pRBD onset during 2011-2012, we observed a nonsignificant trend between high urate concentration and high odds of pRBD (P-trend = 0.09). INTERPRETATION:Higher average urate concentrations were associated with a lower likelihood of having pRBD, but not new-onset pRBD. Because of its observational study design, the result should be interpreted with caution due to the possibility of residual confounding.

SUBMITTER: Shen Y

PROVIDER: S-EPMC6917330 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Plasma urate concentrations and possible REM sleep behavior disorder.

Shen Yun Y Li Junjuan J Schwarzschild Michael M Pavlova Milena M He Songbin S Ascherio Alberto A Wu Shouling S Cui Liufu L Gao Xiang X

Annals of clinical and translational neurology 20191112 12

<h4>Objective</h4>To examine how urate concentrations are related to the risk of having possible REM sleep behavior disorder (pRBD) in a community-based cohort.<h4>Methods</h4>The study included 12,923 Chinese adults of the Kailuan Study, free of Parkinson disease (PD) and dementia. Plasma urate concentrations were measured in 2006, 2008, and 2010. Cumulative average urate concentration was used as primary exposure. In 2012, we determined pRBD status using a validated RBD questionnaire-Hong Kong ...[more]

PMID: 31714690

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Project description:Study objectivesREM sleep behavior disorder (RBD) is associated with antidepressant treatment, especially in younger patients; but quantitative REM sleep without atonia (RSWA) analyses of psychiatric RBD patients remain limited. We analyzed RSWA in adults receiving antidepressants, with and without RBD.DesignWe comparatively analyzed visual, manual, and automated RSWA between RBD and control groups. RSWA metrics were compared between groups, and regression was used to explore associations with clinical variables.SettingTertiary-care sleep center.ParticipantsParticipants included traditional RBD without antidepressant treatment (n = 30, 15 Parkinson disease [PD-RBD] and 15 idiopathic); psychiatric RBD receiving antidepressants (n = 30); and adults without RBD, including antidepressant-treated psychiatric (n = 30), untreated psychiatric (n = 15), and OSA (n = 60) controls.InterventionsN/A.Measurements and resultsRSWA was highest in traditional and psychiatric RBD, intermediate in treated psychiatric controls, and lowest in untreated psychiatric and OSA controls (P < 0.01). RSWA distribution and type also differed between antidepressant-treated patients having higher values in anterior tibialis, and PD-RBD with higher submentalis and tonic RSWA. Psychiatric RBD had significantly younger age at onset than traditional RBD patients (P < 0.01).ConclusionsAntidepressant treatment was associated with elevated REM sleep without atonia (RSWA) even without REM sleep behavior disorder (RBD), suggesting that antidepressants, not depression, promote RSWA. Differences in RSWA distribution and type were also seen, with higher anterior tibialis RSWA in antidepressant-treated patients and higher tonic RSWA in Parkinson disease-RBD patients, which could aid distinction between RBD subtypes. These findings suggest that antidepressants may mediate different RSWA mechanisms or, alternatively, that RSWA type and distribution evolve during progressive neurodegeneration. Further prospective RSWA analyses are necessary to clarify the relationships between antidepressant treatment, psychiatric disease, and RBD.

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Plasma urate concentrations and possible REM sleep behavior disorder.

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Plasma urate concentrations and possible REM sleep behavior disorder.

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