Evidence map›Paper›PMID 34222429›Full record

ArticleWorld journal of clinical cases2021

Diagnostic value of amygdala volume on structural magnetic resonance imaging in Alzheimer's disease.

De-Wei Wang, Shou-Luan Ding, Xian-Li Bian, Shi-Yue Zhou, Hui Yang, Ping Wang

Open access · diamondAbstract read
In one paragraph

Article in World journal of clinical cases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Histological investigation of amygdala in horned and hornless ewes.Veterinary research forum : an international quarterly journal · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
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

6 authors at 2 institutions in 1 country.

De-Wei WangDepartment of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong Province, China.
Shou-Luan DingCenter for Evidence-Based Medicine, Institute of Medical Sciences, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong Province, China.
Xian-Li BianDepartment of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong Province, China.
Shi-Yue ZhouCheeloo College of Medicine, Shandong University, Jinan 250012, Shandong Province, China.
Hui YangDepartment of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong Province, China.
Ping WangDepartment of Neurology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250033, Shandong Province, China. wping0108@163.com.
Second Hospital of Shandong University · CNShandong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe main clinical manifestation of Alzheimer's disease (AD) is memory loss, which can be accompanied by neuropsychiatric symptoms at different stages of the disease. Amygdala is closely related to emotion and memory.

aimTo evaluate the diagnostic value of amygdala on structural magnetic resonance imaging (sMRI) for AD.

methodsIn this study, 22 patients with AD and 26 controls were enrolled. Their amygdala volumes were measured by sMRI and analyzed using an automatic analysis software.

resultsThe bilateral amygdala volumes of AD patients were significantly lower than those of the controls and were positively correlated with the hippocampal volumes. Receiver operating characteristic curve analyses showed that the sensitivity of the left and right amygdala volumes in diagnosing AD was 80.8% and 88.5%, respectively. Subgroup analyses showed that amygdala atrophy was more serious in AD patients with neuropsychiatric symptoms, which mainly included irritability (22.73%), sleep difficulties (22.73%), apathy (18.18%), and hallucination (13.64%).

conclusionAmygdala volumes measured by sMRI can be used to diagnose AD, and amygdala atrophy is more serious in patients with neuropsychiatric symptoms.

Indexed as

Alzheimer’s diseaseAmygdalaNeuropsychiatric symptomsStructural magnetic resonance imaging

Identifiers

PMID34222429
PMCPMC8223829
OpenAlexW3167299518

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.