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Shaik KM, Patibandla V, Nandi S. Impact of anabolic androgenic steroids on COVID-19. Steroids 2024; 203:109361. [PMID: 38176451 DOI: 10.1016/j.steroids.2023.109361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/28/2023] [Accepted: 12/30/2023] [Indexed: 01/06/2024]
Abstract
In the wake of the Novel Coronavirus arrival, the world witnessed the fragility of healthcare systems and the resilience of healthcare workers who stood on the front lines. SARS-CoV-2, also known as COVID-19 or severe acute respiratory syndrome, first appeared in China in December 2019. The infection quickly spread across the nation and the world. All countries severely restricted social interaction to stop the virus's transmission, impacting all sporting, social, and recreational activities. Anabolic androgenic steroids (AASs) are frequently used illegally to enhance strength and physical attractiveness. However, they could hurt immune system health. Much research hasn't been done yet on the connection between Covid-19 and AASs. Synthetic testosterone analogs known as anabolic androgenic steroids (AASs) can have an immune-system-altering effect. Sportspeople and bodybuilders are vulnerable to AAS abuse. Governmental reactions to the coronavirus infection issue over the last year have drawn much attention and discussion regarding public services, the experience and lessons learned from different limitations, and strategies for dealing with potential future pandemics. Using AAS has the potential to cause a variety of adverse reactions, including cardiovascular issues (including high blood pressure, heart disease, and blood clots), liver damage, renal failure, mood swings, aggressiveness, and psychiatric disorders. Individuals already suffering from severe respiratory conditions like COVID-19 may have these risks increased. This review mainly highlights the anabolic androgen steroids use and its unseen effects on coronavirus patients and gymnastics.
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Affiliation(s)
- Khaja Moinuddin Shaik
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, 160062, Punjab, India
| | - Vijay Patibandla
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, 160062, Punjab, India
| | - Sukhendu Nandi
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, 160062, Punjab, India.
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Le-Trilling VTK, Mennerich D, Schuler C, Sakson R, Lill JK, Kasarla SS, Kopczynski D, Loroch S, Flores-Martinez Y, Katschinski B, Wohlgemuth K, Gunzer M, Meyer F, Phapale P, Dittmer U, Sickmann A, Trilling M. Identification of herbal teas and their compounds eliciting antiviral activity against SARS-CoV-2 in vitro. BMC Biol 2022; 20:264. [PMID: 36447206 PMCID: PMC9708519 DOI: 10.1186/s12915-022-01468-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 11/17/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The SARS-CoV-2/COVID-19 pandemic has inflicted medical and socioeconomic havoc, and despite the current availability of vaccines and broad implementation of vaccination programs, more easily accessible and cost-effective acute treatment options preventing morbidity and mortality are urgently needed. Herbal teas have historically and recurrently been applied as self-medication for prophylaxis, therapy, and symptom alleviation in diverse diseases, including those caused by respiratory viruses, and have provided sources of natural products as basis for the development of therapeutic agents. To identify affordable, ubiquitously available, and effective treatments, we tested herbs consumed worldwide as herbal teas regarding their antiviral activity against SARS-CoV-2. RESULTS Aqueous infusions prepared by boiling leaves of the Lamiaceae perilla and sage elicit potent and sustained antiviral activity against SARS-CoV-2 when applied after infection as well as prior to infection of cells. The herbal infusions exerted in vitro antiviral effects comparable to interferon-β and remdesivir but outperformed convalescent sera and interferon-α2 upon short-term treatment early after infection. Based on protein fractionation analyses, we identified caffeic acid, perilla aldehyde, and perillyl alcohol as antiviral compounds. Global mass spectrometry (MS) analyses performed comparatively in two different cell culture infection models revealed changes of the proteome upon treatment with herbal infusions and provided insights into the mode of action. As inferred by the MS data, induction of heme oxygenase 1 (HMOX-1) was confirmed as effector mechanism by the antiviral activity of the HMOX-1-inducing compounds sulforaphane and fraxetin. CONCLUSIONS In conclusion, herbal teas based on perilla and sage exhibit antiviral activity against SARS-CoV-2 including variants of concern such as Alpha, Beta, Delta, and Omicron, and we identified HMOX-1 as potential therapeutic target. Given that perilla and sage have been suggested as treatment options for various diseases, our dataset may constitute a valuable resource also for future research beyond virology.
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Affiliation(s)
- Vu Thuy Khanh Le-Trilling
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Denise Mennerich
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Corinna Schuler
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Roman Sakson
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany
| | - Julia K. Lill
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany
| | - Siva Swapna Kasarla
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany
| | - Dominik Kopczynski
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany
| | - Stefan Loroch
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany
| | - Yulia Flores-Martinez
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Benjamin Katschinski
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Kerstin Wohlgemuth
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Matthias Gunzer
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany ,grid.5718.b0000 0001 2187 5445Institute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Folker Meyer
- grid.5718.b0000 0001 2187 5445Institute for AI in Medicine, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Prasad Phapale
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany
| | - Ulf Dittmer
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
| | - Albert Sickmann
- grid.419243.90000 0004 0492 9407Leibniz-Institut Für Analytische Wissenschaften - ISAS - E.V., Dortmund, Germany ,grid.5570.70000 0004 0490 981XMedizinische Fakultät, Ruhr-Universität Bochum, Bochum, Germany ,grid.7107.10000 0004 1936 7291Department of Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen, UK
| | - Mirko Trilling
- grid.5718.b0000 0001 2187 5445Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Virchowstr. 179, 45147 Essen, Germany
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Xu J, Kerr L, Jiang Y, Suo W, Zhang L, Lao T, Chen Y, Zhang Y. Rapid Antigen Diagnostics as Frontline Testing in the COVID‐19 Pandemic. SMALL SCIENCE 2022; 2:2200009. [PMID: 35942171 PMCID: PMC9349911 DOI: 10.1002/smsc.202200009] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 04/25/2022] [Indexed: 11/09/2022] Open
Abstract
The ongoing global COVID‐19 pandemic, caused by the SARS‐CoV‐2 virus, has resulted in significant loss of life since December 2019. Timely and precise virus detection has been proven as an effective solution to reduce the spread of the virus and to track the epidemic. Rapid antigen diagnostics has played a significant role in the frontline of COVID‐19 testing because of its convenience, low cost, and high accuracy. Herein, different types of recently innovated in‐lab and commercial antigen diagnostic technologies with emphasis on the strengths and limitations of these technologies including the limit of detection, sensitivity, specificity, affordability, and usability are systematically reviewed. The perspectives of assay development are looked into.
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Affiliation(s)
- Jiang Xu
- Department of Systems Biology Blavatnik Institute Harvard Medical School Boston MA 02115 USA
- Department of Molecular Virology Virogin Biotech Ltd. 3800 Wesbrook Mall Vancouver BC V6S 2L9 Canada
| | - Liam Kerr
- Department of Mechanical Engineering Center for Intelligent Machines McGill University Montreal QC H3A0C3 Canada
| | - Yue Jiang
- China-Australia Institute for Advanced Materials and Manufacturing Jiaxing University Jiaxing 314001 China
| | - Wenhao Suo
- Dana-Farber Cancer Institute Harvard Medical School Boston MA 02215 USA
- Department of Pathology The First Affiliated Hospital of Xiamen University 55 Zhenhai Road Xiamen 361003 China
| | - Lei Zhang
- Department of Chemical Engineering Waterloo Institute for Nanotechnology University of Waterloo 200 University Avenue West Waterloo ON N2L3G1 Canada
| | - Taotao Lao
- Department of Molecular Diagnostics Boston Molecules Inc. 564 Main Street Waltham MA 02452 USA
- Center for Immunology and Inflammatory Diseases Massachusetts General Hospital Harvard Medical School Charlestown MA 02114 USA
| | - Yuxin Chen
- Department of Laboratory Medicine Nanjing Drum Tower Hospital Nanjing University Medical School Nanjing Jiangsu 210008 China
| | - Yan Zhang
- Tianjin Key Laboratory for Modern Drug Delivery and High-Efficiency Collaborative Innovation Center of Chemical Science and Engineering School of Pharmaceutical Science and Technology Tianjin University Tianjin 300072 China
- Frontiers Science Center for Synthetic Biology (Ministry of Education) Tianjin University Tianjin 300072 China
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4
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Şimşek B, Özilgen M, Utku FŞ. How much energy is stored in SARS‐CoV‐2 and its structural elements? ENERGY STORAGE 2022; 4:e298. [PMCID: PMC8646435 DOI: 10.1002/est2.298] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is the virus causing the COVID‐19 disease. Data regarding the morphological properties of this virus are collected from the literature and then the energy stored in each structural element is calculated with Domalski and Hearing's group contribution method. Viruses, including the Corona viruses, derive all of their energy from the host cell and carry out all of their activities with this energy. SARS‐CoV‐2 construct a vehicle needed for the delivery of its mRNA to other hosts to inflict them with the disease. Upon transfer of the viral RNA to the new host, the remaining parts of the viral structure are discarded. Structural and molecular assessments showed that the chemical formula of SARS‐CoV‐2 virus is C7,336,852H12,384,463N1,247,424O1,915,357P100,231S25,084 and its enthalpy of formation is −8.70 × 10−16 kJ. Comparison of SARS‐CoV‐2 with the other viruses shows that its elemental composition does not like any of the others. The results of this study are expected to improve our knowledge of the thermodynamic properties of this virus.
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Affiliation(s)
- Bartu Şimşek
- Department of Biomedical EngineeringFaculty of Engineering, Yeditepe UniversityIstanbulTurkey
| | - Mustafa Özilgen
- Department of Food EngineeringFaculty of Engineering, Yeditepe UniversityIstanbulTurkey
| | - Feride Şermin Utku
- Department of Biomedical EngineeringFaculty of Engineering, Yeditepe UniversityIstanbulTurkey
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5
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Esposito S, D’Abrosca G, Antolak A, Pedone PV, Isernia C, Malgieri G. Host and Viral Zinc-Finger Proteins in COVID-19. Int J Mol Sci 2022; 23:ijms23073711. [PMID: 35409070 PMCID: PMC8998646 DOI: 10.3390/ijms23073711] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 01/08/2023] Open
Abstract
An unprecedented effort to tackle the ongoing COVID-19 pandemic has characterized the activity of the global scientific community over the last two years. Hundreds of published studies have focused on the comprehension of the immune response to the virus and on the definition of the functional role of SARS-CoV-2 proteins. Proteins containing zinc fingers, both belonging to SARS-CoV-2 or to the host, play critical roles in COVID-19 participating in antiviral defenses and regulation of viral life cycle. Differentially expressed zinc finger proteins and their distinct activities could thus be important in determining the severity of the disease and represent important targets for drug development. Therefore, we here review the mechanisms of action of host and viral zinc finger proteins in COVID-19 as a contribution to the comprehension of the disease and also highlight strategies for therapeutic developments.
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6
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Krempe F, Schöler L, Katschinski B, Herrmann A, Anastasiou OE, Elsner C, Ross RS, Scholz F, Dittmer U, Miethe P, Le-Trilling VTK, Trilling M. A rapid test recognizing mucosal SARS-CoV-2-specific antibodies distinguishes prodromal from convalescent COVID-19. iScience 2021; 24:103194. [PMID: 34608451 PMCID: PMC8481626 DOI: 10.1016/j.isci.2021.103194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/17/2021] [Accepted: 09/27/2021] [Indexed: 11/04/2022] Open
Abstract
The COVID-19 pandemic poses enormous challenges to global healthcare sectors. To prevent the overburden of medical systems, it is crucial to distinguish individuals approaching the most infectious early phase from those in the declining non-infectious phase. However, a large fraction of transmission events occur during pre- or asymptomatic phases. Especially in the absence of symptoms, it is difficult to distinguish prodromal from late phases of infection just by RT-PCR since both phases are characterized by low viral loads and corresponding high Ct values (>30). We evaluated a new rapid test detecting IgG antibodies recognizing SARS-CoV-2 nucleocapsid protein using two commercial antibody assays and an in-house neutralization test before determining suitability for testing clinical swab material. Our analyses revealed the combination of the well-known RT-PCR and the new rapid antibody test using one single clinical nasopharyngeal swab specimen as a fast, cost-effective, and reliable way to discriminate prodromal from subsiding phases of COVID-19. A novel rapid antibody test for SARS-CoV-2 N-specific IgG was established The rapid antibody testing is fast, cost-effective, and reliable N-specific IgG is detectable in swab specimens during the late phase of infection Testing of swab specimens discriminates prodromal from declining phases of COVID-19
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Affiliation(s)
- Friederike Krempe
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Lara Schöler
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Benjamin Katschinski
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Anke Herrmann
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Olympia E Anastasiou
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Carina Elsner
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - R Stefan Ross
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Friedrich Scholz
- Senova Gesellschaft für Biowissenschaft und Technik mbH, 99427 Weimar, Germany
| | - Ulf Dittmer
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Peter Miethe
- fzmb GmbH, Forschungszentrum für Medizintechnik und Biotechnologie, 99947 Bad Langensalza, Germany
| | - Vu Thuy Khanh Le-Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
| | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, North Rhine-Westphalia, Germany
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7
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Li X, Zhang L, Chen S, Ji W, Li C, Ren L. Recent progress on the mutations of SARS-CoV-2 spike protein and suggestions for prevention and controlling of the pandemic. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2021; 93:104971. [PMID: 34146731 PMCID: PMC8213438 DOI: 10.1016/j.meegid.2021.104971] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/09/2021] [Accepted: 06/14/2021] [Indexed: 02/08/2023]
Abstract
Severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infection has caused a global pandemic in the past year, which poses continuing threat to human beings. To date, more than 3561 mutations in the viral spike protein were identified, including 2434 mutations that cause amino acid changes with 343 amino acids located in the viral receptor-binding domain (RBD). Among these mutations, the most representative ones are substitution mutations such as D614G, N501Y, Y453F, N439K/R, P681H, K417N/T, and E484K, and deletion mutations of ΔH69/V70 and Δ242-244, which confer the virus with enhanced infectivity, transmissibility, and resistance to neutralization. In this review, we discussed the recent findings of SARS-CoV-2 for highlighting mutations and variants on virus transmissibility and pathogenicity. Moreover, several suggestions for prevention and controlling the pandemic are also proposed.
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Affiliation(s)
- Xue Li
- College of Animal Sciences, Key Lab for Zoonoses Research, Ministry of Education, Jilin University, 5333 Xi' An Road, Changchun 130062, China
| | - Liying Zhang
- College of Animal Sciences, Key Lab for Zoonoses Research, Ministry of Education, Jilin University, 5333 Xi' An Road, Changchun 130062, China
| | - Si Chen
- College of Animal Sciences, Key Lab for Zoonoses Research, Ministry of Education, Jilin University, 5333 Xi' An Road, Changchun 130062, China
| | - Weilong Ji
- College of Animal Sciences, Key Lab for Zoonoses Research, Ministry of Education, Jilin University, 5333 Xi' An Road, Changchun 130062, China
| | - Chang Li
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Military Veterinary Institute, Academy of Military Medical Sciences, Changchun 130112, China
| | - Linzhu Ren
- College of Animal Sciences, Key Lab for Zoonoses Research, Ministry of Education, Jilin University, 5333 Xi' An Road, Changchun 130062, China.
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8
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Domingo JL. What we know and what we need to know about the origin of SARS-CoV-2. ENVIRONMENTAL RESEARCH 2021; 200:111785. [PMID: 34329631 PMCID: PMC8316641 DOI: 10.1016/j.envres.2021.111785] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 05/19/2023]
Abstract
Since the appearance of the first cases of COVID-19 in 2019, an unprecedented number of documents on that disease have been published in a short space of time. The current available information covers a large number of topics related with COVID-19 and/or the coronavirus (SARS-CoV-2) responsible of the disease. However, only a limited number of publications have been focused on a controversial issue: the origin of the SARS-CoV-2. In this paper, the scientific literature on the origin of SARS-CoV-2 has been reviewed. Documents published during 2020 and 2021 (January 1-July 19) in journals that are indexed in PubMed and/or Scopus has been considered. The revised studies were grouped according to these two potential origins: natural and unnatural. The analyses of the conclusions of the different documents here assessed show that even considering the zoonotic hypothesis as the most likely, with bats and pangolins being possibly in the origin of the coronavirus, today's date the intermediate source species of SARS-CoV-2 has not been confirmed yet. On the other hand, some researchers point to an unnatural origin of this coronavirus, but their conclusions are not strongly supported by a clear scientific evidence. Given the tremendous severity of the current pandemic, investigations to establish clearly and definitively the origin of SARS-CoV-2, are basic and essential in order to prevent potential future pandemics of similar nature.
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Affiliation(s)
- Jose L Domingo
- Laboratory of Toxicology and Environmental Health, School of Medicine, Universitat Rovira i Virgili, 43201, Reus, Catalonia, Spain.
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9
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Ma J, Chen Y, Wu W, Chen Z. Structure and Function of N-Terminal Zinc Finger Domain of SARS-CoV-2 NSP2. Virol Sin 2021; 36:1104-1112. [PMID: 34398430 PMCID: PMC8365134 DOI: 10.1007/s12250-021-00431-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022] Open
Abstract
SARS-CoV-2 has become a global pandemic threatening human health and safety. It is urgent to find effective therapeutic agents and targets with the continuous emergence of novel mutant strains. The knowledge of the molecular basis and pathogenesis of SARS-CoV-2 in host cells requires to be understood comprehensively. The unknown structure and function of nsp2 have hindered our understanding of its role in SARS-CoV-2 infection. Here, we report the crystal structure of the N-terminal of SARS-CoV-2 nsp2 to a high resolution of 1.96 Å. This novel structure contains three zinc fingers, belonging to the C2H2, C4, and C2HC types, respectively. Structure analysis suggests that nsp2 may be involved in binding nucleic acids and regulating intracellular signaling pathways. The binding to single or double-stranded nucleic acids was mainly through the large positively charged region on the surface of nsp2, and K111, K112, K113 were key residues. Our findings lay the foundation for a better understanding of the relationship between structure and function for nsp2. It is helpful to make full use of nsp2 as further research and development of antiviral targets and drug design.
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Affiliation(s)
- Jun Ma
- State Key Laboratory of Agrobiotechnology and Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Yiyun Chen
- Cherry Creek High School, 9300 East Union Avenue, Greenwood Village, 80111, USA
| | - Wei Wu
- State Key Laboratory of Agrobiotechnology and Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Biological Sciences, China Agricultural University, Beijing, 100193, China
| | - Zhongzhou Chen
- State Key Laboratory of Agrobiotechnology and Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Biological Sciences, China Agricultural University, Beijing, 100193, China.
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10
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What the HEC happens around the heart during COVID-19? Basic Res Cardiol 2021; 116:43. [PMID: 34223971 PMCID: PMC8256399 DOI: 10.1007/s00395-021-00883-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 06/01/2021] [Indexed: 12/15/2022]
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11
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Klingen RL, Katschinski B, Anastasiou OE, Ross RS, Dittmer U, Le-Trilling VTK, Trilling M. Over 90% of clinical swabs used for SARS-CoV-2 diagnostics contain sufficient nucleic acid concentrations. J Med Virol 2021; 93:2848-2856. [PMID: 33289117 PMCID: PMC7753554 DOI: 10.1002/jmv.26706] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 11/27/2020] [Accepted: 11/29/2020] [Indexed: 01/19/2023]
Abstract
During the coronavirus disease 2019 pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), reliable diagnostics are absolutely indispensable. Molecular SARS‐CoV‐2 diagnostics based on nucleic acids (NA) derived from oro‐ or nasopharyngeal swabs constitute the current gold standard. Given the importance of test results, it is crucial to assess the quality of the underlying swab samples and NA extraction procedures. We determined NA concentrations in clinical samples used for SARS‐CoV‐2 testing applying an NA‐specific dye. In comparison to cut‐offs defined by SARS‐CoV‐2‐positive samples, internal positive controls, and references from a federal laboratory, 90.85% (923 of 1016) of swabs contained NA concentrations enabling SARS‐CoV‐2 recognition. Swabs collected by local health authorities and the central emergency department either had significantly higher NA concentrations or were less likely to exhibit insufficient quality, arguing in favor of sampling centers with routined personnel. Interestingly, samples taken from females had significantly higher NA concentrations than those from males. Among eight longitudinal patient sample sets with intermitting negative quantitative reverse transcription polymerase chain reaction results, two showed reduced NA concentrations in negative specimens. The herein described fluorescence‐based NA quantification approach is immediately applicable to evaluate swab qualities, optimize sampling strategies, identify patient‐specific differences, and explain some peculiar test results including intermittent negative samples with low NA concentrations.
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Affiliation(s)
- Robin L Klingen
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Benjamin Katschinski
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Olympia E Anastasiou
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - R Stefan Ross
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ulf Dittmer
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | - Mirko Trilling
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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