Evidence map›Paper›PMID 33941272›Full record

ReviewTranslational neurodegeneration2021

COVID-19 and Alzheimer's disease: how one crisis worsens the other.

Xiaohuan Xia, Yi Wang, Jialin Zheng

Open access · goldAbstract readReview
In one paragraph

Review in Translational neurodegeneration, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 2 pooled it
14.5field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 2 syntheses or guidelines pooled it, 144 citations in OpenAlex.

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  9. Computational and structural biotechnology journal · 2025
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4 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 2 countries.

Xiaohuan XiaCenter for Translational Neurodegeneration and Regenerative Therapy, Tenth People's Hospital of Tongji University, Shanghai, 200072, China. xiaohuan_xia1@163.com.
Yi WangCenter for Translational Neurodegeneration and Regenerative Therapy, Tenth People's Hospital of Tongji University, Shanghai, 200072, China.
Jialin ZhengCenter for Translational Neurodegeneration and Regenerative Therapy, Tenth People's Hospital of Tongji University, Shanghai, 200072, China. jialinzheng@tongji.edu.cn.ORCID 0000-0003-2286-0151
Tongji University · CN

Funding

Clinical Research Fund from Shanghai Municipal Health Commission 20204Y0031National Natural Science Foundation of China 81801063National Natural Science Foundation of China 81830037National Natural Science Foundation of China 81901333National Natural Science Foundation of China 81971145National Natural Science Foundation of China 91949204Shanghai Blue Cross Brain Hospital Co., Ltd., and Shanghai Tongji University Education Development Foundation 000000381/2018108Shanghai Sailing Program 19YF1451700
6 · The paper itself

Abstract

Alzheimer's disease (AD) has emerged as a key comorbidity of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). The morbidity and mortality of COVID-19 are elevated in AD due to multiple pathological changes in AD patients such as the excessive expression of viral receptor angiotensin converting enzyme 2 and pro-inflammatory molecules, various AD complications including diabetes, lifestyle alterations in AD, and drug-drug interactions. Meanwhile, COVID-19 has also been reported to cause various neurologic symptoms including cognitive impairment that may ultimately result in AD, probably through the invasion of SARS-CoV-2 into the central nervous system, COVID-19-induced inflammation, long-term hospitalization and delirium, and post-COVID-19 syndrome. In addition, the COVID-19 crisis also worsens behavioral symptoms in uninfected AD patients and poses new challenges for AD prevention. In this review, we first introduce the symptoms and pathogenesis of COVID-19 and AD. Next, we provide a comprehensive discussion on the aggravating effects of AD on COVID-19 and the underlying mechanisms from molecular to social levels. We also highlight the influence of COVID-19 on cognitive function, and propose possible routes of viral invasion into the brain and potential mechanisms underlying the COVID-19-induced cognitive impairment. Last, we summarize the negative impacts of COVID-19 pandemic on uninfected AD patients and dementia prevention.

Indexed as

PandemicsAgedAged, 80 and overAlzheimer DiseaseComorbidityCOVID-19HumansAlzheimer’s diseaseAngiotensin converting enzyme 2Central nervous systemCognitive impairmentCOVID-19InflammationSARS-CoV-2

Identifiers

PMID33941272
PMCPMC8090526
OpenAlexW3158185880

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.