Evidence map›Paper›PMID 33220712›Full record

ArticleAlzheimer's research & therapy2020

Smaller pineal gland is associated with rapid eye movement sleep behavior disorder in Alzheimer's disease.

Jeongbin Park, Seung Wan Suh, Grace Eun Kim, Subin Lee, Jun Sung Kim, Hye Sung Kim, Seonjeong Byun, Jong Bin Bae, Jae Hyoung Kim, Sang Eun Kim and 2 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

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  3. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 2 countries.

Jeongbin ParkDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea.
Seung Wan SuhDepartment of Psychiatry, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
Grace Eun KimDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea.
Subin LeeDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea.
Jun Sung KimDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea.
Hye Sung KimDepartment of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
Seonjeong ByunDepartment of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
Jong Bin BaeDepartment of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
Jae Hyoung KimDepartment of Radiology, Seoul National University Bundang Hospital, Seongnam, Korea.
Sang Eun KimDepartment of Nuclear Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
Ji Won HanDepartment of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
Ki Woong KimDepartment of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Korea. kwkimmd@snu.ac.kr.ORCID 0000-0002-1103-3858
Seoul National University · KRSeoul National University Bundang Hospital · KRHallym University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo 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.

methodsWe 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

resultsThe 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.

conclusionsIn AD patients, reduced pineal gland volume may be associated with RBD.

Indexed as

Alzheimer DiseasePineal GlandREM Sleep Behavior DisorderAmyloid beta-PeptidesBrainHumansAmyloid beta-PeptidesAlzheimer’s diseaseAmyloid positron emission tomographyMagnetic resonance imagingPineal glandRapid eye movement sleep behavior disorder

Identifiers

PMID33220712
PMCPMC7680594
OpenAlexW3110082664

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.