Evidence map›Paper›PMID 33928418›Full record

ArticleEuropean radiology2021

Smaller volume and altered functional connectivity of the amygdala in patients with lifelong premature ejaculation.

Bowen Geng, Ming Gao, Jiayu Wu, Guang Yang, Chengxiang Liu, Ruiqing Piao, Shuming Zhang, Ke Xu, Jianlin Yuan, Peng Liu

Abstract read
PubMed Publisher
In one paragraph

Article in European radiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

13 citing papers in PubMed, 19 citations in OpenAlex.

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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

10 authors at 3 institutions in 2 countries.

Bowen GengLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Ming GaoXi'An DaXing Hospital of Shaanxi University of Chinese Medicine, Xi'an, China.
Jiayu WuLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Guang YangLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Chengxiang LiuLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Ruiqing PiaoLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Shuming ZhangLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Ke XuLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China.
Jianlin YuanDepartment of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China.
Peng LiuLife Science Research Center, School of Life Science and Technology, Xidian University, Xi'an, 710071, Shaanxi, China. liupengphd@gmail.com.ORCID http://orcid.org/0000-0001-6965-8001
Xidian University · CNNorthwest Women's and Children's Hospital · CNXijing Hospital · CN

Funding

National Natural Science Foundation of China 61971425National Natural Science Foundation of China 62001370National Natural Science Foundation of China 81771918Natural Science Foundation of Shaanxi Province 2020JM-197Postdoctoral Research Foundation of China 2019M650985Shaanxi Provincial Science and Technology Department 2018SF/091
6 · The paper itself

Abstract

objectivesTo analyze the abnormal amygdala structure and function in lifelong premature ejaculation (PE) patients compared with healthy controls (HCs).

methodsForty-four lifelong PE patients and thirty-one HCs were enrolled in this study. Each subject was diagnosed with PE using a Premature Ejaculation Diagnostic Tool (PEDT) and intravaginal ejaculation latency time (IELT) score. Based on t-tests and Pearson correlation analysis, the voxel-based morphometry and functional connectivity (FC) analyses were applied to evaluate brain structural and functional changes by using T1-weighted and resting-state functional magnetic resonance imaging scans.

resultsLifelong PE patients had decreased gray matter volume in the bilateral amygdala and increased FC between the amygdala and precuneus, posterior cingulate cortex (PCC), and middle temporal cortex (MTC), as well as decreased FC between the amygdala and precentral gyrus, insula, and inferior frontal gyrus. Moreover, significantly negative correlations between the IELT score and the mean z-score from amygdala-MTC (r = -0.49) and amygdala-PCC (r = -0.48) FC were found in lifelong PE patients.

conclusionsOur study investigated the abnormal amygdala-related structure and connectivity patterns in PE patients, which might provide novel perspective for understanding the crucial role of the amygdala in the neural mechanism of PE. KEY POINTS: • As one of the most common diseases in men, PE may be related to abnormal brain mechanisms. • Functional and structural magnetic resonance imaging used to explore amygdala abnormalities in PE patients. • The correlation between clinical scores and functional connectivity was used to assess the reasonability of the results.

Indexed as

Premature EjaculationAmygdalaBrainEjaculationHumansMagnetic Resonance ImagingMaleAmygdalaFunctional connectivityGray matter volumeNeuroimagingPremature ejaculation

Identifiers

PMID33928418
OpenAlexW3159542710

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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.