Evidence map›Paper›PMID 34916443›Full record

ArticleNeural regeneration research2022

Survivors of COVID-19 exhibit altered amplitudes of low frequency fluctuation in the brain: a resting-state functional magnetic resonance imaging study at 1-year follow-up.

Yan-Yao Du, Wei Zhao, Xiang-Lin Zhou, Mu Zeng, Dan-Hui Yang, Xing-Zhi Xie, Si-Hong Huang, Ying-Jia Jiang, Wen-Han Yang, Hu Guo and 6 more

Open access · goldAbstract read
In one paragraph

Article in Neural regeneration research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Long-Term Consequences of COVID-19 at 6 Months and Above: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2022
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  16. Altered brain function and structure pre- and post- COVID-19 infection: a longitudinal study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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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

16 authors at 3 institutions in 1 country.

Yan-Yao DuDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Wei ZhaoDepartment of Radiology, The Second Xiangya Hospital of Central South University; Clinical Research Center for Medical Imaging in Hunan Province, Changsha, Hunan Province, China.
Xiang-Lin ZhouDepartment of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Mu ZengDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Dan-Hui YangDepartment of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Xing-Zhi XieDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Si-Hong HuangDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Ying-Jia JiangDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Wen-Han YangDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Hu GuoDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Hui SunDepartment of Radiology, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Ji-Yang LiuDepartment of Respiratory Medicine, The First Hospital of Changsha, Changsha, Hunan Province, China.
Ping LiuDepartment of Respiratory Medicine, The First Hospital of Changsha, Changsha, Hunan Province, China.
Zhi-Guo ZhouDepartment of Respiratory Medicine, The First Hospital of Changsha, Changsha, Hunan Province, China.
Hong LuoDepartment of Pulmonary and Critical Care Medicine, The Second Xiangya Hospital of Central South University, Changsha, Hunan Province, China.
Jun LiuDepartment of Radiology, The Second Xiangya Hospital of Central South University; Clinical Research Center for Medical Imaging in Hunan Province; Department of Radiology Quality Control Center, Hunan Province, Changsha, Hunan Province, China.
Second Xiangya Hospital of Central South University · CNCentral South University · CNThe First Hospital of Changsha · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although some short-term follow-up studies have found that individuals recovering from coronavirus disease 2019 (COVID-19) exhibit anxiety, depression, and altered brain microstructure, their long-term physical problems, neuropsychiatric sequelae, and changes in brain function remain unknown. This observational cohort study collected 1-year follow-up data from 22 patients who had been hospitalized with COVID-19 (8 males and 11 females, aged 54.2 ± 8.7 years). Fatigue and myalgia were persistent symptoms at the 1-year follow-up. The resting state functional magnetic resonance imaging revealed that compared with 29 healthy controls (7 males and 18 females, aged 50.5 ± 11.6 years), COVID-19 survivors had greatly increased amplitude of low-frequency fluctuation (ALFF) values in the left precentral gyrus, middle frontal gyrus, inferior frontal gyrus of operculum, inferior frontal gyrus of triangle, insula, hippocampus, parahippocampal gyrus, fusiform gyrus, postcentral gyrus, inferior parietal angular gyrus, supramarginal gyrus, angular gyrus, thalamus, middle temporal gyrus, inferior temporal gyrus, caudate, and putamen. ALFF values in the left caudate of the COVID-19 survivors were positively correlated with their Athens Insomnia Scale scores, and those in the left precentral gyrus were positively correlated with neutrophil count during hospitalization. The long-term follow-up results suggest that the ALFF in brain regions related to mood and sleep regulation were altered in COVID-19 survivors. This can help us understand the neurobiological mechanisms of COVID-19-related neuropsychiatric sequelae. This study was approved by the Ethics Committee of the Second Xiangya Hospital of Central South University (approval No. 2020S004) on March 19, 2020.

Indexed as

amplitude of low-frequency fluctuationclinical studycoronavirus disease 2019follow-upfunctional magnetic resonance imaginglong-term physical consequencesneuropsychiatric sequelaeresting-state function

Identifiers

PMID34916443
PMCPMC8771089
OpenAlexW4200447061

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.