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  1. Article ; Online: Human coronaviruses in idiopathic Parkinson's disease: Implications of SARS-CoV-2's modulation of the host's transcriptome.

    Vavougios, George D

    Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases

    2021  Volume 89, Page(s) 104733

    Abstract: Objective: A recent study on the effects of SARS-CoV-2 infection on the host's transcriptome indicated the perturbation of several pathways associated with neurodegeneration, including but not limited to Parkinson's and Huntington's diseases. The ... ...

    Abstract Objective: A recent study on the effects of SARS-CoV-2 infection on the host's transcriptome indicated the perturbation of several pathways associated with neurodegeneration, including but not limited to Parkinson's and Huntington's diseases. The purpose of this study was to determine overlapping pathways between iPD vs. Controls and those associated with SARS-CoV-2 infection.
    Methods: Gene set enrichment analyses (GSEA) were performed on gene expression data from tissues donated by idiopathic Parkinson's disease patients (iPD). These included dorsal motor nucleus of the vagus (DMNV), substantia nigra (SN), whole blood (WB) and peripheral blood mononuclear cell samples (PBMC). Enriched pathways detected by GSEA results were subsequently compared to (a) those retrieved by two independently constructed SARS-CoV-2 - host interactomes, as well as (b) previously published pathway data. For all analyses, a false discovery rate (FDR) <0.05 was considered statistically significant.
    Results: Analysis of iPD data revealed multiple immune response and viral parasitism -related pathways (FDR < 0.05). Head-to-head comparisons as well as confirmatory analyses revealed several pathways and gene ontology (GO) terms overlapping between iPD tissues and SARS-CoV-2 induced transcriptomic changes: "Parkinson's Disease" and "Huntington's Disease" (overlapping in DMNV, ION, SN, and WB; FDR < 0.05), "NAFLD" (overlapping in DMNV, SN, PBMC and WB; FDR < 0.05), mRNA surveillance and proteostasis pathways (All datasets; FDR < 0.5), among others.
    Conclusion: The overlap noted in this comparative transcriptomic study outlines the potential contribution of human coronaviruses in the pathogenesis of iPD. Furthermore, given SARS-CoV-2's neuroinvasive potential, closer scrutiny is warranted towards its contribution in the long-term development of neurodegenerative disease.
    MeSH term(s) COVID-19/virology ; Case-Control Studies ; Gene Expression ; Gene Ontology ; Humans ; Parkinson Disease/genetics ; Parkinson Disease/virology ; SARS-CoV-2/physiology ; Transcriptome
    Language English
    Publishing date 2021-01-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2037068-4
    ISSN 1567-7257 ; 1567-1348
    ISSN (online) 1567-7257
    ISSN 1567-1348
    DOI 10.1016/j.meegid.2021.104733
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Host proteases as determinants of coronaviral neurotropism and virulence.

    Vavougios, George D

    Brain, behavior, and immunity

    2020  Volume 87, Page(s) 27

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus ; Coronavirus Infections ; Humans ; Nervous System ; Pandemics ; Peptide Hydrolases ; Pneumonia, Viral ; SARS-CoV-2 ; Virulence
    Chemical Substances Peptide Hydrolases (EC 3.4.-)
    Keywords covid19
    Language English
    Publishing date 2020-04-06
    Publishing country Netherlands
    Document type Letter ; Comment
    ZDB-ID 639219-2
    ISSN 1090-2139 ; 0889-1591
    ISSN (online) 1090-2139
    ISSN 0889-1591
    DOI 10.1016/j.bbi.2020.04.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Reader response: Miller Fisher syndrome and polyneuritis cranialis in COVID-19.

    Vavougios, George D

    Neurology

    2020  Volume 95, Issue 8, Page(s) 369

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections ; Humans ; Miller Fisher Syndrome ; Neuritis ; Pandemics ; Pneumonia, Viral ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-08-24
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 207147-2
    ISSN 1526-632X ; 0028-3878
    ISSN (online) 1526-632X
    ISSN 0028-3878
    DOI 10.1212/WNL.0000000000010299
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The continuum of SARS-CoV-2's neurotropism and the potential for immune-mediated neuronal injury.

    Vavougios, George D

    Seizure

    2020  Volume 80, Page(s) 48

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections ; Humans ; Pandemics ; Pneumonia, Viral ; SARS-CoV-2 ; Status Epilepticus
    Keywords covid19
    Language English
    Publishing date 2020-05-30
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 1137610-7
    ISSN 1532-2688 ; 1059-1311
    ISSN (online) 1532-2688
    ISSN 1059-1311
    DOI 10.1016/j.seizure.2020.05.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Potentially irreversible olfactory and gustatory impairments in COVID-19: Indolent vs. fulminant SARS-CoV-2 neuroinfection.

    Vavougios, George D

    Brain, behavior, and immunity

    2020  Volume 87, Page(s) 107–108

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections ; Encephalitis ; Humans ; Meningitis ; Pandemics ; Pneumonia, Viral ; SARS Virus ; SARS-CoV-2 ; Severe Acute Respiratory Syndrome
    Keywords covid19
    Language English
    Publishing date 2020-04-27
    Publishing country Netherlands
    Document type Letter ; Comment
    ZDB-ID 639219-2
    ISSN 1090-2139 ; 0889-1591
    ISSN (online) 1090-2139
    ISSN 0889-1591
    DOI 10.1016/j.bbi.2020.04.071
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Letter to the editor: The role of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers in developing a COVID-19 comorbidity-based host risk score.

    Vavougios, George D

    Critical care (London, England)

    2020  Volume 24, Issue 1, Page(s) 242

    MeSH term(s) Angiotensin Receptor Antagonists ; Angiotensin-Converting Enzyme Inhibitors ; Betacoronavirus ; COVID-19 ; Comorbidity ; Coronavirus Infections ; Pandemics ; Pneumonia, Viral ; SARS-CoV-2
    Chemical Substances Angiotensin Receptor Antagonists ; Angiotensin-Converting Enzyme Inhibitors
    Keywords covid19
    Language English
    Publishing date 2020-05-19
    Publishing country England
    Document type Letter ; Comment
    ZDB-ID 2041406-7
    ISSN 1466-609X ; 1364-8535
    ISSN (online) 1466-609X
    ISSN 1364-8535
    DOI 10.1186/s13054-020-02903-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: WITHDRAWN: Selenium - associated gene signatures within the SARS-CoV-2 - host genomic interaction interface.

    Vavougios, George D

    Free radical biology & medicine

    2020  

    Abstract: This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/ ... ...

    Abstract This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
    Keywords covid19
    Language English
    Publishing date 2020-07-15
    Publishing country United States
    Document type Retraction of Publication
    ZDB-ID 807032-5
    ISSN 1873-4596 ; 0891-5849
    ISSN (online) 1873-4596
    ISSN 0891-5849
    DOI 10.1016/j.freeradbiomed.2020.07.014
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Host - virus - drug interactions as determinants of COVID-19's phenotypes: A data-driven hypothesis.

    Vavougios, George D

    Medical hypotheses

    2020  Volume 144, Page(s) 110275

    Abstract: There is a growing body of evidence on the significance of interactions between comorbidities, their treatments and COVID-19 clinical phenotypes. The hypothesis explored herein is that pharmaceutical compounds currently in use are affecting COVID-19 ... ...

    Abstract There is a growing body of evidence on the significance of interactions between comorbidities, their treatments and COVID-19 clinical phenotypes. The hypothesis explored herein is that pharmaceutical compounds currently in use are affecting COVID-19 susceptibility and phenotypes by overlapping transcriptional networks. Using two distinct SARS-CoV-2 - host interactomes, gene set enrichment analysis is used to discover compounds and assorted gene signatures derived from SARS-CoV-2 interactomes. Micronutrients, antiplatelets, ACE2 inhibitors, NSAIDs, corticosteroids and tyrosine kinase inhibitors are among the compounds discovered. Considering the implication of their associated comorbidities such as diabetes and cardiovascular disease that are associated with severe COVID-19, this study outlines the need to consider specific compounds as modulators of the observed COVID-19 spectrum. Furthermore, given that micronutrient trafficking may be targeted by viral processes, and display synergism with other enriched compounds, such as statins, studies assessing their levels prior and during infection are more than warranted.
    MeSH term(s) Angiotensin-Converting Enzyme 2/metabolism ; Antiviral Agents/therapeutic use ; COVID-19/physiopathology ; COVID-19/virology ; Disease Susceptibility ; Gene Expression Regulation, Viral ; Host-Pathogen Interactions ; Humans ; Immune System ; Inflammation ; Micronutrients ; Models, Biological ; Models, Theoretical ; Phenotype ; SARS-CoV-2/drug effects ; SARS-CoV-2/genetics ; Transcription, Genetic
    Chemical Substances Antiviral Agents ; Micronutrients ; ACE2 protein, human (EC 3.4.17.23) ; Angiotensin-Converting Enzyme 2 (EC 3.4.17.23)
    Language English
    Publishing date 2020-09-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 193145-3
    ISSN 1532-2777 ; 0306-9877
    ISSN (online) 1532-2777
    ISSN 0306-9877
    DOI 10.1016/j.mehy.2020.110275
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Overlapping host pathways between SARS-CoV-2 and its potential copathogens: An in silico analysis.

    Vavougios, George D

    Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases

    2020  Volume 86, Page(s) 104602

    Abstract: Background: SARS-CoV-2 coinfection with other viral and bacterial pathogens and their interactions are increasingly recognized in the literature as potential determinants of COVID-19 phenotypes. The aim of this study was to determine infection induced, ... ...

    Abstract Background: SARS-CoV-2 coinfection with other viral and bacterial pathogens and their interactions are increasingly recognized in the literature as potential determinants of COVID-19 phenotypes. The aim of this study was to determine infection induced, host transcriptomic overlap between SARS-CoV-2 and other pathogens.
    Materials and methods: SARS-CoV-2 infection induced gene expression data were used for gene set enrichment analysis (GSEA) via the Enrichr platform. GSEA compared the extracted signature to VirusMINT, Virus and Microbe perturbations from Gene Expression Omnibus (GEO) in order to detect overlap with other pathogen induced host gene signatures. For all analyses, a false discovery rate (FDR) <0.05 was considered statistically significant.
    Results: GSEA via Enrichr revealed several significantly enriched sub-signatures associated with HSV1, EBV, HIV1, IAV, RSV, P.Aeruginosa, Staph. Aureus and Strep. Pneumoniae infections, among other pathogens (FDR < 0.05). These signatures were detected in at least 6 infection-induced transcriptomic studies from GEO and involved both bronchial epithelial and peripheral blood immune cells.
    Discussion: SARS-CoV-2 infection may function synergistically with other viral and bacterial pathogens at the transcriptomic level. Notably, several meta-analyses of COVID-19 cohorts have furthermore corroborated viral and bacterial pathogens reported herein as coinfections with SARS-CoV-2. The identification of common, perturbed gene networks outlines a common host targetome for these pathogens, and furthermore provides candidates for biomarker discovery and drug design.
    MeSH term(s) COVID-19/genetics ; COVID-19/metabolism ; COVID-19/virology ; Cells, Cultured ; Coinfection ; Computer Simulation ; Host-Pathogen Interactions/genetics ; Humans ; SARS-CoV-2/pathogenicity ; Systems Biology ; Transcriptome/genetics ; Transcriptome/physiology ; Virus Diseases/genetics ; Virus Diseases/metabolism ; Virus Diseases/virology ; Viruses/pathogenicity
    Keywords covid19
    Language English
    Publishing date 2020-10-24
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2037068-4
    ISSN 1567-7257 ; 1567-1348
    ISSN (online) 1567-7257
    ISSN 1567-1348
    DOI 10.1016/j.meegid.2020.104602
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: SARS-CoV-2 dysregulation of PTBP1 and YWHAE/Z gene expression: A primer of neurodegeneration.

    Vavougios, George D

    Medical hypotheses

    2020  Volume 144, Page(s) 110212

    Abstract: SARS-CoV-2 neurotropism has been increasingly recognized by its imaging and syndromic manifestations in the literature. The purpose of this report is to explore the limited yet salient current evidence that SARS-CoV-2's host genomic targets PTBP1 and the ...

    Abstract SARS-CoV-2 neurotropism has been increasingly recognized by its imaging and syndromic manifestations in the literature. The purpose of this report is to explore the limited yet salient current evidence that SARS-CoV-2's host genomic targets PTBP1 and the 14-3-3 protein isoform encoding genes YWHAE and YWHAZ may be hold the key to understanding how neurotropism triggers neurodegeneration and how it may contribute to the onset of neurodegenerative disease. Considering that PTBP1 silencing in particular has recently been shown to reverse clinical parkinsonism and induce neurogenesis, as well as the known interactions of PTBP1 and YWHAE/Z with coronaviruses - most notably 14-3-3 and SARS-CoV, recent studies reinvigorate the infectious etiology hypotheses on major neurodegenerative disease such as AD and iPD. Considering that human coronaviruses with definite neurotropism have been shown to achieve long-term latency within the mammalian CNS as a result of specific accommodating mutations, the corroboration of genomic-level evidence with neuroimaging has vast potential implications for neurodegenerative disease.
    MeSH term(s) 14-3-3 Proteins/genetics ; COVID-19/complications ; COVID-19/genetics ; COVID-19/virology ; Gene Expression Regulation ; Heterogeneous-Nuclear Ribonucleoproteins/genetics ; Host Microbial Interactions/genetics ; Humans ; Models, Neurological ; Nerve Degeneration/etiology ; Nerve Degeneration/genetics ; Neurodegenerative Diseases/etiology ; Neurodegenerative Diseases/genetics ; Pandemics ; Polypyrimidine Tract-Binding Protein/genetics ; SARS-CoV-2/pathogenicity
    Chemical Substances 14-3-3 Proteins ; Heterogeneous-Nuclear Ribonucleoproteins ; PTBP1 protein, human ; YWHAE protein, human ; YWHAZ protein, human ; Polypyrimidine Tract-Binding Protein (139076-35-0)
    Language English
    Publishing date 2020-08-26
    Publishing country United States
    Document type Journal Article
    ZDB-ID 193145-3
    ISSN 1532-2777 ; 0306-9877
    ISSN (online) 1532-2777
    ISSN 0306-9877
    DOI 10.1016/j.mehy.2020.110212
    Database MEDical Literature Analysis and Retrieval System OnLINE

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