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Bärreiter VA, Meister TL. Renal implications of coronavirus disease 2019: insights into viral tropism and clinical outcomes. Curr Opin Microbiol 2024; 79:102475. [PMID: 38615393 DOI: 10.1016/j.mib.2024.102475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/02/2024] [Accepted: 04/03/2024] [Indexed: 04/16/2024]
Abstract
In recent years, multiple coronaviruses have emerged, with the latest one, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing a global pandemic. Besides respiratory symptoms, some patients experienced extrapulmonary effects, such as cardiac damage or renal injury, indicating the broad tropism of SARS-CoV-2. The ability of the virus to effectively invade the renal cellular environment can eventually cause tissue-specific damage and disease. Indeed, patients with severe coronavirus disease 2019 exhibited a variety of symptoms such as acute proximal tubular injury, ischemic collapse, and severe acute tubular necrosis resulting in irreversible kidney failure. This review summarizes the current knowledge on how it is believed that SARS-CoV-2 influences the renal environment and induces kidney disease, as well as current therapy approaches.
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Affiliation(s)
- Valentin A Bärreiter
- Institute for Infection Research and Vaccine Development (IIRVD), Centre for Internal Medicine, University Medical Centre Hamburg-Eppendorf (UKE), Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Toni L Meister
- Institute for Infection Research and Vaccine Development (IIRVD), Centre for Internal Medicine, University Medical Centre Hamburg-Eppendorf (UKE), Hamburg, Germany; Department for Clinical Immunology of Infectious Diseases, Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany; German Centre for Infection Research (DZIF), Partner site Hamburg-Lübeck-Borstel-Riems, Hamburg, Germany.
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2
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Arnaout Y, Picard-Meyer E, Robardet E, Cappelle J, Cliquet F, Touzalin F, Jimenez G, Djelouadji Z. Assessment of virus and Leptospira carriage in bats in France. PLoS One 2023; 18:e0292840. [PMID: 37862301 PMCID: PMC10588846 DOI: 10.1371/journal.pone.0292840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 09/29/2023] [Indexed: 10/22/2023] Open
Abstract
With over 1,400 species worldwide, bats represent the second largest order of mammals after rodents, and are known to host major zoonotic pathogens. Here, we estimate the presence of pathogens in autochthonous bat populations. First, we set out to check our samples for PCR amplification efficiency by assessing the occurrence of inhibited PCR reactions from different types of bat samples with amplifying the housekeeping gene β-actin. Second, we investigated the presence of five targeted pathogens in a French bat population using PCR. We targeted viral RNA of Canine distemper virus, Alphacoronavirus, Lyssavirus, Rotavirus and bacterial Leptospira DNA. To do so, we screened for these viruses in bat faecal samples as well as in oropharyngeal swab samples. The presence of Leptospira was assessed in urine, kidney, lung and faecal samples. Results showed a frequency of inhibited reactions ranging from 5 to 60% of samples, varying according to the sample itself and also suspected to vary according to sampling method and the storage buffer solution used, demonstrating the importance of the sampling and storage on the probability of obtaining negative PCR results. For pathogen assessment, rotavirus and alphacoronavirus RNA were detected in Myotis myotis, Myotis daubentonii, Myotis emarginatus and Rhinolophus ferrumequinum bats. Rotaviruses were also detected in Barbastella barbastellus. The presence of alphacoronavirus also varied seasonally, with higher frequencies in late summer and October, suggesting that juveniles potentially play an important role in the dynamics of these viruses. Leptospira DNA was detected in M. myotis and M. daubentonii colonies. The 16S rRNA sequences obtained from Leptospira positive samples showed 100% genetic identity with L. borgpetersenii. Neither canine distemper virus nor lyssavirus RNA were detected in any of the tested samples. This study is the first to show the presence of Leptospira in autochthonous French bats in addition to coronavirus and rotavirus RNA previously reported in European autochthonous bats.
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Affiliation(s)
- Youssef Arnaout
- Lyssavirus Unit, Nancy Laboratory for Rabies and Wildlife, ANSES, Malzéville, France
- USC 1233-INRAE Rongeurs Sauvages, Risque Sanitaire et Gestion des Populations, VetAgro Sup, Marcy l’Etoile, France
| | - Evelyne Picard-Meyer
- Lyssavirus Unit, Nancy Laboratory for Rabies and Wildlife, ANSES, Malzéville, France
| | - Emmanuelle Robardet
- Lyssavirus Unit, Nancy Laboratory for Rabies and Wildlife, ANSES, Malzéville, France
| | - Julien Cappelle
- UMR ASTRE, CIRAD, INRAE, Université de Montpellier, Montpellier, France
- UMR EPIA, INRAE, VetAgro Sup, Theix, France
| | - Florence Cliquet
- Lyssavirus Unit, Nancy Laboratory for Rabies and Wildlife, ANSES, Malzéville, France
| | - Frédéric Touzalin
- School of Biology and Environmental Science, Science Centre West, University College Dublin, Dublin, Ireland
| | | | - Zouheira Djelouadji
- USC 1233-INRAE Rongeurs Sauvages, Risque Sanitaire et Gestion des Populations, VetAgro Sup, Marcy l’Etoile, France
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Luu B, McCoy-Hass V, Kadiu T, Ngo V, Kadiu S, Lien J. Severe Acute Respiratory Syndrome Associated Infections. PHYSICIAN ASSISTANT CLINICS 2023; 8:495-530. [PMID: 37197227 PMCID: PMC10015106 DOI: 10.1016/j.cpha.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Viral infections are some of the most common sources of respiratory illness in pediatric and adult populations worldwide. Influenza and coronaviruses are viral pathogens that could lead to severe respiratory illness and death. More recently, respiratory illness from coronaviruses, accounts for more than 1 million deaths in the United States alone. This article will explore the epidemiology, pathogenesis, diagnosis, treatment, and prevention of severe acute respiratory syndrome caused by coronavirus-2, and Middle Eastern respiratory syndrome.
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Affiliation(s)
- Brent Luu
- UC Davis Betty Irene Moore School of Nursing, 2450 48th Street, Sacramento, CA 95817, USA
| | - Virginia McCoy-Hass
- UC Davis Betty Irene Moore School of Nursing, 2450 48th Street, Sacramento, CA 95817, USA
| | - Teuta Kadiu
- UC Davis Betty Irene Moore School of Nursing, 2450 48th Street, Sacramento, CA 95817, USA
| | - Victoria Ngo
- UC Davis Betty Irene Moore School of Nursing, 2450 48th Street, Sacramento, CA 95817, USA
| | - Sara Kadiu
- Partners Pharmacy, 181 Cedar Hill Road Suite 1610, Marlborough, MA 01752, USA
| | - Jeffrey Lien
- Walgreens, 227 Shoreline Highway, Mill Valley, CA 94941, USA
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Carvalho Á, Henriques AR, Queirós P, Rodrigues J, Mendonça N, Rodrigues AM, Canhão H, de Sousa G, Antunes F, Guimarães M. Persistence of IgG COVID-19 antibodies: A longitudinal analysis. Front Public Health 2023; 10:1069898. [PMID: 36703818 PMCID: PMC9872107 DOI: 10.3389/fpubh.2022.1069898] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/19/2022] [Indexed: 01/12/2023] Open
Abstract
Background and aim The kinetics of antibody production in response to coronavirus disease 2019 (COVID-19) infection is not well-defined yet. This study aimed to evaluate the antibody responses to SARS-CoV-2 and its dynamics during 9-months in a cohort of patients infected during the first phase of the pandemic. As a secondary aim, it was intended to evaluate the factors associated with different concentrations of IgG antibodies. Methods A prospective cohort study was conducted from June 2020 to January 2021. This study recruited a convenience sample of adult individuals who where recently diagnosed with COVID-19 and were living in mainland Portugal. A total of 1,695 blood samples were collected from 585 recovered COVID-19 patients up to 9 months after SARS-CoV-2 acute infection. A blood sample was collected at baseline and three, 6 and 9 months after SARS-CoV-2 acute infection to assess the concentration of IgG antibody against SARS-CoV-2. Results The positivity rate of IgG reached 77.7% in the first 3 months after symptom onset. The IgG persists at all subsequent follow-up time-points, which was 87.7 and 89.2% in the 6th and 9th months after symptom onset, respectively. Three distinct kinetics of antibody response were found within the 9 months after infection. Kinetic 1 (K1) was characterized by a constant low IgG antibody concentration kinetic (group size: 65.2%); kinetic 2 (K2), composed by constant moderate IgG kinetic (group size: 27.5%) and kinetic 3 (K3) characterized by higher IgG kinetic (group size: 7.3%). People with ≥56 years old (OR: 3.33; CI 95%: [1.64; 6.67]; p-value: 0.001) and symptomatic COVID-19 (OR: 2.08; CI 95%: [1.08; 4.00]; p-value: 0.031) had higher odds of a "Moderate IgG kinetic." No significant association were found regarding the "Higher IgG kinetic." Conclusion Our results demonstrate a lasting anti-spike (anti-S) IgG antibody response at least 9 months after infection in the majority of patients with COVID-19. Younger participants with asymptomatic disease have lower IgG antibody positivity and possibly more susceptible to reinfection. This information contributes to expanding knowledge of SARS-CoV-2 immune response and has direct implications in the adoption of preventive strategies and public health policies.
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Affiliation(s)
| | - Ana Rita Henriques
- CHRC, NOVA Medical School, Universidade NOVA de Lisboa, Lisboa, Portugal,*Correspondence: Ana Rita Henriques ✉
| | | | | | - Nuno Mendonça
- CHRC, NOVA Medical School, Universidade NOVA de Lisboa, Lisboa, Portugal
| | | | - Helena Canhão
- CHRC, NOVA Medical School, Universidade NOVA de Lisboa, Lisboa, Portugal
| | - Germano de Sousa
- Germano de Sousa Group- Centro de Medicina Laboratorial, Pólo Tecnológico de Lisboa, Lisboa, Portugal
| | - Francisco Antunes
- Instituto de Saúde Ambiental, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal,Laboratório Associado TERRA, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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Al-Eitan L, Sendyani S, Alnimri M. Applications of the One Health concept: Current Status in the Middle East. JOURNAL OF BIOSAFETY AND BIOSECURITY 2023. [DOI: 10.1016/j.jobb.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Almasi F, Mohammadipanah F. Neurological manifestations of SARS-CoV-2 infections: towards quantum dots based management approaches. J Drug Target 2023; 31:51-64. [PMID: 35921123 DOI: 10.1080/1061186x.2022.2110252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Developing numerous nanotechnological designed tools to monitor the existence of SARS-CoV-2, and modifying its interactions address the global needs for efficient remedies required for the management of COVID-19. Herein, through a multidisciplinary outlook encompassing different fields such as the pathophysiology of SARS-CoV-2, analysis of symptoms, and statistics of neurological complications caused by SARS-CoV-2 infection in the central and peripheral nervous systems have been testified. The anosmia (51.1%) and ageusia (45.5%) are reported the most frequent neurological manifestation. Cerebrovascular disease and encephalopathy were mainly related to severe clinical cases. In addition, we focus especially on the various concerned physiological routes, including BBB dysfunction, which transpired due to SARS-CoV-2 infection, direct and indirect effects of the virus on the brain, and also, the plausible mechanisms of viral entry to the nerve system. We also outline the characterisation, and the ongoing pharmaceutical applications of quantum dots as smart nanocarriers crossing the blood-brain barrier and their importance in neurological diseases, mainly SARS-CoV-2 related manifestations Moreover, the market status, six clinical trials recruiting quantum dots, and the challenges limiting the clinical application of QDs are highlighted.
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Affiliation(s)
- Faezeh Almasi
- Pharmaceutical Biotechnology Lab, Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
| | - Fatemeh Mohammadipanah
- Pharmaceutical Biotechnology Lab, Department of Microbial Biotechnology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran
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Guest PC, Kesharwani P, Butler AE, Sahebkar A. The COVID-19 Pandemic: SARS-CoV-2 Structure, Infection, Transmission, Symptomology, and Variants of Concern. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1412:3-26. [PMID: 37378759 DOI: 10.1007/978-3-031-28012-2_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Since it was first detected in December 2019, the COVID-19 pandemic has spread across the world and affected virtually every country and territory. The pathogen driving this pandemic is SARS-CoV-2, a positive-sense single-stranded RNA virus which is primarily transmissible though the air and can cause mild to severe respiratory infections in humans. Within the first year of the pandemic, the situation worsened with the emergence of several SARS-CoV-2 variants. Some of these were observed to be more virulent with varying capacities to escape the existing vaccines and were, therefore, denoted as variants of concern. This chapter provides a general overview of the course of the COVID-19 pandemic up to April 2022 with a focus on the structure, infection, transmission, and symptomology of the SARS-CoV-2 virus. The main objectives were to investigate the effects of the variants of concern on the trajectory of the virus and to highlight a potential pathway for coping with the current and future pandemics.
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Affiliation(s)
- Paul C Guest
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
- Department of Psychiatry, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
- Laboratory of Translational Psychiatry, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, India
| | - Alexandra E Butler
- Research Department, Royal College of Surgeons in Ireland Bahrain, Adliya, Bahrain
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Medicine, The University of Western Australia, Perth, WA, Australia
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Mercier A, Méheut A, Alidjinou EK, Lazrek M, Faure K, Hober D, Engelmann I. Respiratory virus detection in returning travelers and pilgrims from the Middle East. Travel Med Infect Dis 2023; 51:102482. [PMID: 36280020 PMCID: PMC9584832 DOI: 10.1016/j.tmaid.2022.102482] [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: 07/13/2022] [Revised: 09/16/2022] [Accepted: 10/16/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Pilgrims travelling to Saudi Arabia are commonly infected with respiratory viruses. Since the Middle East Respiratory Syndrome Coronavirus (MERS-CoV) emerged in 2012, patients with acute respiratory symptoms returning from an endemic area can be suspected to be infected by this virus. METHODS 98 patients suspected to have MERS-CoV infection from 2014 to 2019 were included in this retrospective cohort study. Upper and lower respiratory tract samples were tested by real-time RT-PCR for the detection of MERS-CoV and other respiratory viruses. Routine microbiological analyses were also performed. Patient data were retrieved from laboratory and hospital databases retrospectively. RESULTS All patients with suspected MERS-CoV infection travelled before their hospitalization. Most frequent symptoms were cough (94.4%) and fever (69.4%). 98 specimens were tested for MERS-CoV RNA and none of them was positive. Most frequently detected viruses were Enterovirus/Rhinovirus (40/83; 48.2%), Influenzavirus A (34/90; 37.8%) and B (11/90; 12.2%), H-CoV (229E and OC43 10/83; 12% and 7/83; 8.4%, respectively). CONCLUSION From 2014 to 2019, none of 98 patients returning from endemic areas was MERS-CoV infected. However, infections with other respiratory viruses were frequent, especially with Enterovirus/Rhinoviruses and Influenzaviruses.
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Affiliation(s)
- Ambroise Mercier
- Univ Lille, CHU Lille, Laboratoire de Virologie ULR3610, F-59037, Lille, France
| | - Antoine Méheut
- CHU Lille, Service des Maladies Infectieuses et Tropicales, Lille, France, F-59037, Lille, France
| | | | - Mouna Lazrek
- Univ Lille, CHU Lille, Laboratoire de Virologie ULR3610, F-59037, Lille, France
| | - Karine Faure
- CHU Lille, Service des Maladies Infectieuses et Tropicales, Lille, France, F-59037, Lille, France,Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL - Center for Infection and Immunity of Lille, F-59000, Lille, France,Service de Maladies Infectieuses, CHU Lille, F-59000, Lille, France
| | - Didier Hober
- Univ Lille, CHU Lille, Laboratoire de Virologie ULR3610, F-59037, Lille, France
| | - Ilka Engelmann
- Univ Lille, CHU Lille, Laboratoire de Virologie ULR3610, F-59037, Lille, France,Corresponding author. Laboratoire de Virologie, CHU Montpellier, Hôpital Saint-Eloi, 80 avenue Augustin Fliche, 34295 Montpellier, France
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Youssef DTA, Mufti SJ, Badiab AA, Shaala LA. Anti-Infective Secondary Metabolites of the Marine Cyanobacterium Lyngbya Morphotype between 1979 and 2022. Mar Drugs 2022; 20:md20120768. [PMID: 36547915 PMCID: PMC9788623 DOI: 10.3390/md20120768] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/01/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022] Open
Abstract
Cyanobacteria ascribed to the genus Lyngbya (Family Oscillatoriaceae) represent a potential therapeutic gold mine of chemically and biologically diverse natural products that exhibit a wide array of biological properties. Phylogenetic analyses have established the Lyngbya 'morpho-type' as a highly polyphyletic group and have resulted in taxonomic revision and description of an additional six new cyanobacterial genera in the same family to date. Among the most prolific marine cyanobacterial producers of biologically active compounds are the species Moorena producens (previously L. majuscula, then Moorea producens), M. bouillonii (previously L. bouillonii), and L. confervoides. Over the years, compounding evidence from in vitro and in vivo studies in support of the significant pharmaceutical potential of 'Lyngbya'-derived natural products has made the Lyngbya morphotype a significant target for biomedical research and novel drug leads development. This comprehensive review covers compounds with reported anti-infective activities through 2022 from the Lyngbya morphotype, including new genera arising from recent phylogenetic re-classification. So far, 72 anti-infective secondary metabolites have been isolated from various Dapis, Lyngbya, Moorea, and Okeania species. These compounds showed significant antibacterial, antiparasitic, antifungal, antiviral and molluscicidal effects. Herein, a comprehensive literature review covering the natural source, chemical structure, and biological/pharmacological properties will be presented.
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Affiliation(s)
- Diaa T. A. Youssef
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Natural Products Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: ; Tel.: +966-548535344
| | - Shatha J. Mufti
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abeer A. Badiab
- Department of Natural Products, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Lamiaa A. Shaala
- Suez Canal University Hospital, Suez Canal University, Ismailia 41522, Egypt
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Cheng X, Cao Q, Liao SS. An overview of literature on COVID-19, MERS and SARS: Using text mining and latent Dirichlet allocation. J Inf Sci 2022; 48:304-320. [PMID: 38603038 PMCID: PMC7464068 DOI: 10.1177/0165551520954674] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The unprecedented outbreak of COVID-19 is one of the most serious global threats to public health in this century. During this crisis, specialists in information science could play key roles to support the efforts of scientists in the health and medical community for combatting COVID-19. In this article, we demonstrate that information specialists can support health and medical community by applying text mining technique with latent Dirichlet allocation procedure to perform an overview of a mass of coronavirus literature. This overview presents the generic research themes of the coronavirus diseases: COVID-19, MERS and SARS, reveals the representative literature per main research theme and displays a network visualisation to explore the overlapping, similarity and difference among these themes. The overview can help the health and medical communities to extract useful information and interrelationships from coronavirus-related studies.
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Affiliation(s)
- Xian Cheng
- Business School, Sichuan University, China
| | - Qiang Cao
- Department of Information Systems, City University of Hong Kong, China
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Nunes-Silva C, Vilares AT, Schweitzer V, Castanhinha S, Martins A, Lopes MJ, Ascoli-Bartoli T, Canelas G, Keir HR, Cunha F, Silva-Pinto A, Rebelo S, Cunha RG, Tavares M. Non-COVID-19 respiratory viral infection. Breathe (Sheff) 2022; 18:210151. [PMID: 36338246 PMCID: PMC9584593 DOI: 10.1183/20734735.0151-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 03/22/2022] [Indexed: 11/11/2022] Open
Abstract
Implemented control measures brought about by the coronavirus disease 2019 (COVID-19) pandemic have changed the prevalence of other respiratory viruses, often relegating them to a secondary plan. However, it must not be forgotten that a diverse group of viruses, including other human coronaviruses, rhinoviruses, respiratory syncytial virus, human metapneumoviruses, parainfluenza and influenza, continue to be responsible for a large burden of disease. In fact, they are among the most common causes of acute upper and lower respiratory tract infections globally. Viral respiratory infections can be categorised in several ways, including by clinical syndrome or aetiological agent. We describe their clinical spectrum. Distinctive imaging features, advances in microbiological diagnosis and treatment of severe forms are also discussed. Non-COVID-19 respiratory viral infections are a major burden of disease. Emerging molecular-based detection methods and knowledge of viral lower respiratory tract infections’ distinctive features improve diagnosis, treatment and outcome of severe forms.https://bit.ly/3qMqk3T
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Novel Coronavirus (SARS-CoV-2) in Water and Environment—A Scoping Review. Life (Basel) 2022; 12:life12040520. [PMID: 35455011 PMCID: PMC9025651 DOI: 10.3390/life12040520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/05/2022] [Accepted: 03/18/2022] [Indexed: 11/17/2022] Open
Abstract
A pneumonia outbreak was primarily reported in the fall of 2019 in Wuhan, Hubei province, China, with the identity SARS-CoV-2, a novel coronavirus. It quickly grew from a local epidemic to a global pandemic and was declared a public health emergency by the WHO. A total of three prominent waves were identified across the globe, with a slight temporal variability as per the geographical locations, and has impacted several sectors which connect the world. By March 2022, the coronavirus had infected 444.12 million people and claimed 6.01 million human lives worldwide, and these numbers have not yet stabilized. Our paper enlightens readers on the seven strains of human coronaviruses, with special emphasis on the three severe deadliest outbreaks (SARS-2002, MERS-2012, and COVID-19). This work attempts a comprehensive understanding of the coronavirus and its impact on the possible sectors that link the world through the economic chain, climate conditions, SDGs, recycling of the event, and mitigations. There are many points that are raised by the authors in the possible sectors, which are emerging or are as yet unnoticed and thus have not been taken into consideration. This comprehension will leave sets of new challenges and opportunities for the researchers in various streams, especially in earth sciences. Science-integrated research may help to prevent upcoming disasters as a by-product of (existing) epidemics in the form of coronavirus.
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Hernandez Acosta RA, Esquer Garrigos Z, Marcelin JR, Vijayvargiya P. COVID-19: Pathogenesis and Clinical Manifestations. Infect Dis Clin North Am 2022; 36:231-249. [PMID: 35636898 PMCID: PMC8806149 DOI: 10.1016/j.idc.2022.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | | | - Jasmine R Marcelin
- Division of Infectious Diseases, University of Nebraska Medical Center, Omaha, NE, USA
| | - Prakhar Vijayvargiya
- Division of Infectious Diseases, University of Mississippi Medical Center, Jackson, MS, USA.
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COVID-19 pandemic-related mortality, infection, symptoms, complications, comorbidities, and other aspects of physical health among healthcare workers globally: An umbrella review. Int J Nurs Stud 2022; 129:104211. [PMID: 35278750 PMCID: PMC8855608 DOI: 10.1016/j.ijnurstu.2022.104211] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 01/05/2022] [Accepted: 02/14/2022] [Indexed: 12/13/2022]
Abstract
Background The COVID-19 pandemic has continued to cause unprecedented concern across the globe since the beginning of the outbreak. Healthcare workers, particularly those working on the front line, remain one of the most affected groups. Various studies have investigated different aspects of the physical health of healthcare workers; however, limited evidence on the overall physical health of healthcare workers has been collectively examined. Aim To examine the various aspects of physical health and well-being of healthcare workers during the COVID-19 pandemic. Design An umbrella review. Methods We conducted a comprehensive literature search on Academic Search Premier, CINAHL, Cochrane Library and MEDLINE and supplemented the search with Google Scholar. Key terms related to ‘COVID-19’, ‘physical health’, ‘healthcare worker’ and ‘systematic review’ were used in the search. Systematic reviews with or without meta-analyses were included if they were published in the English language, could be obtained in full-text format, and assessed the physical health impacts of the COVID-19 pandemic on healthcare workers were included. The methodological quality of eligible studies was assessed using the Joanna Briggs Institute's checklist for systematic reviews. The data were narratively synthesised in line with the ‘Synthesis Without Meta-analysis’ guideline. Results Thirteen systematic reviews (represented as K = 13) that synthesized data from 1230 primary studies/reports and 1,040,336 participants met the inclusion criteria. The findings indicate a death rate of between 0.3 and 54.2 per 100 infections (K = 4). The overall case-fatality rate was estimated to be 0.87% (approximately 9 deaths per 1000 infections, K = 3). The overall infection rate among healthcare workers ranged from 3.9% to 11% (K = 5), with the highest rate associated with healthcare workers involved in screening. Considering geographic regions, the highest number of infections was reported in Europe (78.2% of 152,888 infected healthcare workers, K = 1). More nurses and female healthcare workers were infected, while deaths occurred mainly among men and medical doctors. The commonly reported symptoms included cough (56–80%, K = 3), fever (57–85%, K = 3), and headache (7–81%, K = 3), while hypertension was the most prevalent comorbidity (7%, K = 1). Additionally, a high prevalence of poor sleep quality (41–43%, K = 2), work-related stress (33–44.86%, K = 5) and personal protective equipment-associated skin injuries (48.2–97%, K = 2) affected the healthcare workers. The most reported preventive measures included laboratory testing, clinical diagnosis, adequate personal protective equipment, self-isolation, and training/orientation for infection control. Conclusion Healthcare workers experienced considerable COVID-19-related physical health issues, including mortalities. This requires targeted interventions and health policies to support healthcare workers worldwide to ensure timely management of the pandemic. Tweetable abstract: This umbrella review highlights the global mortalities, infections, and other aspects of physical health of healthcare workers during the COVID-19 pandemic.
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Tomas M, Capanoglu E, Bahrami A, Hosseini H, Akbari‐Alavijeh S, Shaddel R, Rehman A, Rezaei A, Rashidinejad A, Garavand F, Goudarzi M, Jafari SM. The direct and indirect effects of bioactive compounds against coronavirus. FOOD FRONTIERS 2021; 3:96-123. [PMID: 35462942 PMCID: PMC9015578 DOI: 10.1002/fft2.119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 10/15/2021] [Accepted: 10/28/2021] [Indexed: 12/16/2022] Open
Abstract
Emerging viruses are known to pose a threat to humans in the world. COVID‐19, a newly emerging viral respiratory disease, can spread quickly from people to people via respiratory droplets, cough, sneeze, or exhale. Up to now, there are no specific therapies found for the treatment of COVID‐19. In this sense, the rising demand for effective antiviral drugs is stressed. The main goal of the present study is to cover the current literature about bioactive compounds (e.g., polyphenols, glucosinolates, carotenoids, minerals, vitamins, oligosaccharides, bioactive peptides, essential oils, and probiotics) with potential efficiency against COVID‐19, showing antiviral activities via the inhibition of coronavirus entry into the host cell, coronavirus enzymes, as well as the virus replication in human cells. In turn, these compounds can boost the immune system, helping fight against COVID‐19. Overall, it can be concluded that bioactives and the functional foods containing these compounds can be natural alternatives for boosting the immune system and defeating coronavirus.
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Affiliation(s)
- Merve Tomas
- Department of Food Engineering Faculty of Engineering and Natural Sciences Istanbul Sabahattin Zaim University Halkali Istanbul Turkey
| | - Esra Capanoglu
- Department of Food Engineering Faculty of Chemical and Metallurgical Engineering Istanbul Technical University Maslak Istanbul Turkey
| | - Akbar Bahrami
- Center for Excellence in Post‐Harvest Technologies North Carolina Agricultural and Technical State University Kannapolis North Carolina USA
| | - Hamed Hosseini
- Food Additives Department Food Science and Technology Research Institute Research Center for Iranian Academic Center for Education Culture and Research (ACECR) Mashhad Iran
| | - Safoura Akbari‐Alavijeh
- Department of Food Science and Technology Faculty of Agriculture and Natural Resources University of Mohaghegh Ardabili Ardabil Iran
| | - Rezvan Shaddel
- Department of Food Science and Technology Faculty of Agriculture and Natural Resources University of Mohaghegh Ardabili Ardabil Iran
| | - Abdur Rehman
- State Key Laboratory of Food Science and Technology Jiangnan University Jiangsu Wuxi China
- Collaborative Innovation Centre of Food Safety and Quality Control Wuxi Jiangsu Province China
| | - Atefe Rezaei
- Department of Food Science and Technology School of Nutrition and Food Science Isfahan University of Medical Sciences Isfahan Iran
| | | | - Farhad Garavand
- Department of Food Chemistry and Technology Teagasc Food Research Centre, Moorepark Fermoy, Co. Cork Ireland
| | - Mostafa Goudarzi
- Department of Food Science and Engineering University College of Agriculture and Natural Resources University of Tehran Karaj Iran
| | - Seid Mahdi Jafari
- Department of Food Materials and Process Design Engineering Gorgan University of Agricultural Science and Natural Resources Gorgan Iran
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16
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Henao-Kaffure L, Peñaloza G. A critical perspective on pandemics and epidemics: building a bridge between public health and science education. CULTURAL STUDIES OF SCIENCE EDUCATION 2021; 16:1029-1045. [PMID: 34849176 PMCID: PMC8619648 DOI: 10.1007/s11422-021-10074-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
This academic position paper focuses on building a bridge between public health and science education in order to recognize the relationships between science and society-politics, economics, and ideology-in a pandemic context. To do this, we first present the contemporary dispute between the ways of understanding and explaining public health problems in light of a historical-territorial critical perspective; then, we show the configuration process of the formal and hegemonic concept of pandemic that has taken place over the period of the pandemics of the 1918 flu and the 2019 coronavirus disease; later, we give way to a historical-territorial understanding of the genesis of the 2002 and 2012 epidemics in relation to the coronavirus in the twenty-first century; and lastly, we indicate the key points from the historical-territorial critical perspective of public health that science education can use in order to contribute to a critical and reflective understanding of epidemics and pandemics. In this framework, "configuration process" is a category we propose and use in order to explain that specific events such as epidemics and pandemics are interwoven in a social, historical-territorial, trajectory of world power relations.
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Affiliation(s)
- Liliana Henao-Kaffure
- Grupo de Estudios Sociohistóricos de la Salud y la Protección Social, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Gonzalo Peñaloza
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Monterrey, Monterrey, México
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17
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Khandker SS, Godman B, Jawad MI, Meghla BA, Tisha TA, Khondoker MU, Haq MA, Charan J, Talukder AA, Azmuda N, Sharmin S, Jamiruddin MR, Haque M, Adnan N. A Systematic Review on COVID-19 Vaccine Strategies, Their Effectiveness, and Issues. Vaccines (Basel) 2021; 9:1387. [PMID: 34960133 PMCID: PMC8708628 DOI: 10.3390/vaccines9121387] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 12/13/2022] Open
Abstract
COVID-19 vaccines are indispensable, with the number of cases and mortality still rising, and currently no medicines are routinely available for reducing morbidity and mortality, apart from dexamethasone, although others are being trialed and launched. To date, only a limited number of vaccines have been given emergency use authorization by the US Food and Drug Administration and the European Medicines Agency. There is a need to systematically review the existing vaccine candidates and investigate their safety, efficacy, immunogenicity, unwanted events, and limitations. The review was undertaken by searching online databases, i.e., Google Scholar, PubMed, and ScienceDirect, with finally 59 studies selected. Our findings showed several types of vaccine candidates with different strategies against SARS-CoV-2, including inactivated, mRNA-based, recombinant, and nanoparticle-based vaccines, are being developed and launched. We have compared these vaccines in terms of their efficacy, side effects, and seroconversion based on data reported in the literature. We found mRNA vaccines appeared to have better efficacy, and inactivated ones had fewer side effects and similar seroconversion in all types of vaccines. Overall, global variant surveillance and systematic tweaking of vaccines, coupled with the evaluation and administering vaccines with the same or different technology in successive doses along with homologous and heterologous prime-booster strategy, have become essential to impede the pandemic. Their effectiveness appreciably outweighs any concerns with any adverse events.
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Affiliation(s)
- Shahad Saif Khandker
- Gonoshasthaya-RNA Molecular Diagnostic & Research Center, Dhanmondi, Dhaka 1205, Bangladesh; (S.S.K.); (M.U.K.); (M.A.H.); (M.R.J.)
| | - Brian Godman
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G1 1XQ, UK;
- Division of Public Health Pharmacy and Management, School of Pharmacy, Sefako Makgatho Health Sciences University, Pretoria 0204, South Africa
- Centre of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Md. Irfan Jawad
- Department of Microbiology, Jahangirnagar University, Savar 1342, Bangladesh; (M.I.J.); (B.A.M.); (T.A.T.); (A.A.T.); (N.A.)
| | - Bushra Ayat Meghla
- Department of Microbiology, Jahangirnagar University, Savar 1342, Bangladesh; (M.I.J.); (B.A.M.); (T.A.T.); (A.A.T.); (N.A.)
| | - Taslima Akter Tisha
- Department of Microbiology, Jahangirnagar University, Savar 1342, Bangladesh; (M.I.J.); (B.A.M.); (T.A.T.); (A.A.T.); (N.A.)
| | - Mohib Ullah Khondoker
- Gonoshasthaya-RNA Molecular Diagnostic & Research Center, Dhanmondi, Dhaka 1205, Bangladesh; (S.S.K.); (M.U.K.); (M.A.H.); (M.R.J.)
- Department of Community Medicine, Gonoshasthaya Samaj Vittik Medical College, Savar 1344, Bangladesh
| | - Md. Ahsanul Haq
- Gonoshasthaya-RNA Molecular Diagnostic & Research Center, Dhanmondi, Dhaka 1205, Bangladesh; (S.S.K.); (M.U.K.); (M.A.H.); (M.R.J.)
| | - Jaykaran Charan
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur 342005, India;
| | - Ali Azam Talukder
- Department of Microbiology, Jahangirnagar University, Savar 1342, Bangladesh; (M.I.J.); (B.A.M.); (T.A.T.); (A.A.T.); (N.A.)
| | - Nafisa Azmuda
- Department of Microbiology, Jahangirnagar University, Savar 1342, Bangladesh; (M.I.J.); (B.A.M.); (T.A.T.); (A.A.T.); (N.A.)
| | - Shahana Sharmin
- Department of Pharmacy, BRAC University, Dhaka 1212, Bangladesh;
| | - Mohd. Raeed Jamiruddin
- Gonoshasthaya-RNA Molecular Diagnostic & Research Center, Dhanmondi, Dhaka 1205, Bangladesh; (S.S.K.); (M.U.K.); (M.A.H.); (M.R.J.)
- Department of Pharmacy, BRAC University, Dhaka 1212, Bangladesh;
| | - Mainul Haque
- The Unit of Pharmacology, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia (National Defence University of Malaysia), Kem Perdana Sugai Besi, Kuala Lumpur 57000, Malaysia
| | - Nihad Adnan
- Gonoshasthaya-RNA Molecular Diagnostic & Research Center, Dhanmondi, Dhaka 1205, Bangladesh; (S.S.K.); (M.U.K.); (M.A.H.); (M.R.J.)
- Department of Microbiology, Jahangirnagar University, Savar 1342, Bangladesh; (M.I.J.); (B.A.M.); (T.A.T.); (A.A.T.); (N.A.)
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Murdaca G, Paladin F, Tonacci A, Isola S, Allegra A, Gangemi S. The Potential Role of Cytokine Storm Pathway in the Clinical Course of Viral Respiratory Pandemic. Biomedicines 2021; 9:biomedicines9111688. [PMID: 34829918 PMCID: PMC8615478 DOI: 10.3390/biomedicines9111688] [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: 10/21/2021] [Revised: 11/10/2021] [Accepted: 11/13/2021] [Indexed: 01/01/2023] Open
Abstract
The "cytokine storm" (CS) consists of a spectrum of different immune dysregulation disorders characterized by constitutional symptoms, systemic inflammation and multiorgan dysfunction triggered by an uncontrolled immune response. Particularly in respiratory virus infections, the cytokine storm plays a primary role in the pathogenesis of respiratory disease and the clinical outcome of respiratory diseases, leading to complications such as alveolar edema and hypoxia. In this review, we wanted to analyze the different pathogenetic mechanisms involved in the various respiratory viral pandemics (COVID-19; SARS; MERS; H1N1 influenza A and Spanish flu) which have affected humans in this and last century, with particular attention to the phenomenon of the "cytokine storm" which determines the clinical severity of the respiratory disease and consequently its lethality.
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Affiliation(s)
- Giuseppe Murdaca
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Correspondence: ; Tel.: +39-0103537924; Fax: +39-0105556950
| | - Francesca Paladin
- Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, 16132 Genoa, Italy;
| | - Alessandro Tonacci
- Clinical Physiology Institute, National Research Council of Italy (IFC-CNR), 56124 Pisa, Italy;
| | - Stefania Isola
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (S.I.); (S.G.)
| | - Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy;
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (S.I.); (S.G.)
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19
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Umar Y, Al-Batty S, Rahman H, Ashwaq O, Sarief A, Sadique Z, Sreekumar PA, Haque SKM. Polymeric Materials as Potential Inhibitors Against SARS-CoV-2. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2021; 30:1244-1263. [PMID: 34518763 PMCID: PMC8426594 DOI: 10.1007/s10924-021-02272-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/22/2021] [Indexed: 05/02/2023]
Abstract
Recently discovered SARS-CoV-2 caused a pandemic that triggered researchers worldwide to focus their research on all aspects of this new peril to humanity. However, in the absence of specific therapeutic intervention, some preventive strategies and supportive treatment minimize the viral transmission as studied by some factors such as basic reproduction number, case fatality rate, and incubation period in the epidemiology of viral diseases. This review briefly discusses coronaviruses' life cycle of SARS-CoV-2 in a human host cell and preventive strategies at some selected source of infection. The antiviral activities of synthetic and natural polymers such as chitosan, hydrophobically modified chitosan, galactosylated chitosan, amine-based dendrimers, cyclodextrin, carrageenans, polyethyleneimine, nanoparticles are highlighted in this article. Mechanism of virus inhibition, detection and diagnosis are also presented. It also suggests that polymeric materials and nanoparticles can be effective as potential inhibitors and immunization against coronaviruses which would further develop new technologies in the field of polymer and nanoscience.
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Affiliation(s)
- Yunusa Umar
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - Sirhan Al-Batty
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - Habibur Rahman
- Department of General Studies, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - Omar Ashwaq
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - Abdulla Sarief
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - Zakariya Sadique
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - P. A. Sreekumar
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
| | - S. K. Manirul Haque
- Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City, 31961 Saudi Arabia
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20
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Almuntashiri S, James C, Wang X, Siddiqui B, Zhang D. The Potential of Lung Epithelium Specific Proteins as Biomarkers for COVID-19-Associated Lung Injury. Diagnostics (Basel) 2021; 11:diagnostics11091643. [PMID: 34573984 PMCID: PMC8469873 DOI: 10.3390/diagnostics11091643] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/25/2021] [Accepted: 09/07/2021] [Indexed: 02/07/2023] Open
Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection was first reported in Wuhan, China, and was declared a pandemic by the World Health Organization (WHO) on 20 March 2020. The respiratory system is the major organ system affected by COVID-19. Numerous studies have found lung abnormalities in patients with COVID-19, including shortness of breath, respiratory failure, and acute respiratory distress syndrome. The identification of lung-specific biomarkers that are easily measurable in serum would be valuable for both clinicians and patients with such conditions. This review is focused on the pneumoproteins and their potential to serve as biomarkers for COVID-19-associated lung injury, including Krebs von den Lungen-6 (KL-6), surfactant proteins (SP-A, SP-B, SP-C, SP-D), and Clara cell secretory protein (CC16). The current findings indicate the aforementioned pneumoproteins may reflect the severity of pulmonary manifestations and could serve as potential biomarkers in COVID-19-related lung injury.
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Affiliation(s)
- Sultan Almuntashiri
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA; (S.A.); (X.W.)
- Department of Clinical Pharmacy, College of Pharmacy, University of Hail, Hail 55473, Saudi Arabia
| | - Chelsea James
- College of Pharmacy, University of Georgia, Augusta, GA 30912, USA;
| | - Xiaoyun Wang
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA; (S.A.); (X.W.)
| | - Budder Siddiqui
- Division of Infectious Diseases, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA;
| | - Duo Zhang
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA 30912, USA; (S.A.); (X.W.)
- Vascular Biology Center, Augusta University, Augusta, GA 30912, USA
- Correspondence: ; Tel.: +1-706-721-6491; Fax: +1-706-721-3994
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21
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Luan YY, Yin CH, Yao YM. Update Advances on C-Reactive Protein in COVID-19 and Other Viral Infections. Front Immunol 2021; 12:720363. [PMID: 34447386 PMCID: PMC8382792 DOI: 10.3389/fimmu.2021.720363] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/21/2021] [Indexed: 01/08/2023] Open
Abstract
Severe coronavirus disease 2019 (COVID-19) can manifest as a viral-induced hyperinflammation with multiorgan dysfunction. It has been documented that severe COVID-19 is associated with higher levels of inflammatory mediators than a mild disease, and tracking these markers may allow early identification or even prediction of disease progression. It is well known that C-reactive protein (CRP) is the acute-phase protein and the active regulator of host innate immunity, which is highly predictive of the need for mechanical ventilation and may guide escalation of treatment of COVID-19-related uncontrolled inflammation. There are numerous causes of an elevated CRP, including acute and chronic responses, and these can be infectious or non-infectious in etiology. CRP are normally lacking in viral infections, while adaptive immunity appears to be essential for COVID-19 virus clearance, and the macrophage activation syndrome may explain the high serum CRP contents and contribute to the disease progression. Nevertheless, for the assessment of host inflammatory status and identification of viral infection in other pathologies, such as bacterial sepsis, the acute-phase proteins, including CRP and procalcitonin, can provide more important information for guiding clinical diagnosis and antibiotic therapy. This review is aimed to highlight the current and most recent studies with regard to the clinical significance of CRP in severe COVID-19 and other viral associated illnesses, including update advances on the implication of CRP and its form specifically on the pathogenesis of these diseases. The progressive understanding in these areas may be translated into promising measures to prevent severe outcomes and mitigate appropriate treatment modalities in critical COVID-19 and other viral infections.
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Affiliation(s)
- Ying-Yi Luan
- Translational Medicine Research Center, Medical Innovation Research Division and the Fourth Medical Center of PLA General Hospital, Beijing, China.,Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Cheng-Hong Yin
- Department of Central Laboratory, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Yong-Ming Yao
- Translational Medicine Research Center, Medical Innovation Research Division and the Fourth Medical Center of PLA General Hospital, Beijing, China
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22
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Ahmed MM, Sayed AM, El Abd D, Fares S, Said MSM, Elsayed Sedik Ebrahim E. Gender Difference in Perceived Symptoms and Laboratory Investigations in Suspected and Confirmed COVID-19 Cases: A Retrospective Study. J Prim Care Community Health 2021; 12:21501327211039718. [PMID: 34407661 PMCID: PMC8381412 DOI: 10.1177/21501327211039718] [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] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Evaluating gender-specific effects of COVID-19 is important to develop effective therapeutic strategies. The aim of this study was to explore gender difference in perceived symptoms and laboratory investigations in suspected and confirmed cases. METHODS This is a retrospective study that included data from suspected COVID-19 patients during the first wave of the pandemic. Participants using the phone triaging system at Kasralainy outpatient clinics were included. The analyzed data included patient history and results of nasopharyngeal swab and laboratory data. RESULTS Out of 440 COVID-19 suspected cases, 56.36% were females. The perceived COVID-19 symptoms showed no significant gender difference in suspected cases while in confirmed cases females were 4 times more likely to complain of cough [OR (95% CI) 3.92 (1.316-11.68), P-value .014] and 5 times more likely to experience loss of smell or taste [OR (95% CI) 4.84 (1.62-14.43), P-value .005]. Laboratory markers revealed high levels of aspartate aminotransferase, alanine aminotransferase, blood urea, serum creatinine, creatine kinase, and serum ferritin in males and this was statistically significant (P-value <.001) in suspected and confirmed cases. Females confirmed with COVID-19 were 80%, 97%, and 97% less likely to have high levels of ALT, creatin kinase, and serum ferritin [OR (95% CI) 0.20 (0.07-0.54), 0.07 (0.01-0.38), and 0.07 (0.01-0.90), P-value .002, .002, and .041, respectively]. CONCLUSION Gender differences were found in laboratory markers in COVID-19 suspected and confirmed cases and in perceived symptoms in confirmed cases.
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Affiliation(s)
| | - Amal M Sayed
- Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Dina El Abd
- Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Samar Fares
- Family Medicine, Faculty of Medicine, Cairo University, Cairo, Egypt
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23
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Motavalli R, Abdelbasset WK, Rahman HS, Achmad MH, Sergeevna NK, Zekiy AO, Adili A, Khiavi FM, Marofi F, Yousefi M, Ghoreishizadeh S, Shomali N, Etemadi J, Jarahian M. The lethal internal face of the coronaviruses: Kidney tropism of the SARS, MERS, and COVID19 viruses. IUBMB Life 2021; 73:1005-1015. [PMID: 34118117 PMCID: PMC8426673 DOI: 10.1002/iub.2516] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/06/2021] [Accepted: 06/08/2021] [Indexed: 01/08/2023]
Abstract
The kidney is one of the main targets attacked by viruses in patients with a coronavirus infection. Until now, SARS-CoV-2 has been identified as the seventh member of the coronavirus family capable of infecting humans. In the past two decades, humankind has experienced outbreaks triggered by two other extremely infective members of the coronavirus family; the MERS-CoV and the SARS-CoV. According to several investigations, SARS-CoV causes proteinuria and renal impairment or failure. The SARS-CoV was identified in the distal convoluted tubules of the kidney of infected patients. Also, renal dysfunction was observed in numerous cases of MERS-CoV infection. And recently, during the 2019-nCoV pandemic, it was found that the novel coronavirus not only induces acute respiratory distress syndrome (ARDS) but also can induce damages in various organs including the liver, heart, and kidney. The kidney tissue and its cells are targeted massively by the coronaviruses due to the abundant presence of ACE2 and Dpp4 receptors on kidney cells. These receptors are characterized as the main route of coronavirus entry to the victim cells. Renal failure due to massive viral invasion can lead to undesirable complications and enhanced mortality rate, thus more attention should be paid to the pathology of coronaviruses in the kidney. Here, we have provided the most recent knowledge on the coronaviruses (SARS, MERS, and COVID19) pathology and the mechanisms of their impact on the kidney tissue and functions.
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Affiliation(s)
- Roza Motavalli
- Stem Cell Research Center, Tabriz University of Medical SciencesTabrizIran
| | - Walid Kamal Abdelbasset
- Department of Health and Rehabilitation SciencesCollege of Applied Medical Sciences, Prince Sattam bin Abdulaziz UniversityAl KharjSaudi Arabia
- Department of Physical TherapyKasr Al‐Aini Hospital, Cairo UniversityGizaEgypt
| | | | - Muhammad Harun Achmad
- Department of Pediatric DentistryFaculty of Dentistry, Hasanuddin UniversityMakassarIndonesia
| | | | | | - Ali Adili
- Department of oncologyTabriz University of Medical SciencesTabrizIran
| | | | - Faroogh Marofi
- Department of Immunology, Division of Hematology, Faculty of MedicineTabriz University of Medical SciencesTabrizIran
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
| | - Mehdi Yousefi
- Department of Immunology, Faculty of MedicineTabriz University of Medical SciencesTabrizIran
| | | | - Navid Shomali
- Immunology Research CenterTabriz University of Medical SciencesTabrizIran
- Department of Immunology, Faculty of MedicineTabriz University of Medical SciencesTabrizIran
| | - Jalal Etemadi
- Kidney Research Center, Tabriz University of Medical SciencesTabrizIran
| | - Mostafa Jarahian
- Toxicology and Chemotherapy Unit (G401), German Cancer Research Center (DKFZ)HeidelbergGermany
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Ning S, Yu B, Wang Y, Wang F. SARS-CoV-2: Origin, Evolution, and Targeting Inhibition. Front Cell Infect Microbiol 2021; 11:676451. [PMID: 34222046 PMCID: PMC8248807 DOI: 10.3389/fcimb.2021.676451] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 05/28/2021] [Indexed: 01/18/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) caused an outbreak in Wuhan city, China and quickly spread worldwide. Currently, there are no specific drugs or antibodies that claim to cure severe acute respiratory diseases. For SARS-CoV-2, the spike (S) protein recognizes and binds to the angiotensin converting enzyme 2 (ACE2) receptor, allowing viral RNA to enter the host cell. The main protease (Mpro) is involved in the proteolytic process for mature non-structural proteins, and RNA-dependent RNA polymerase (RdRp) is responsible for the viral genome replication and transcription processes. Owing to the pivotal physiological roles in viral invasion and replication, S protein, Mpro, RdRp are regarded as the main therapeutic targets for coronavirus disease 2019 (COVID-19). In this review, we carried out an evolutionary analysis of SARS-CoV-2 in comparison with other mammal-infecting coronaviruses that have sprung up in the past few decades and described the pathogenic mechanism of SARS-CoV-2. We displayed the structural details of S protein, Mpro, and RdRp, as well as their complex structures with different chemical inhibitors or antibodies. Structural comparisons showed that some neutralizing antibodies and small molecule inhibitors could inhibit S protein, Mpro, or RdRp. Moreover, we analyzed the structural differences between SARS-CoV-2 ancestral S protein and D614G mutant, which led to a second wave of infection during the recent pandemic. In this context, we outline the methods that might potentially help cure COVID-19 and provide a summary of effective chemical molecules and neutralizing antibodies.
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Affiliation(s)
- Shuo Ning
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Beiming Yu
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yanfeng Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Feng Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, China
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25
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Sajidah ES, Lim K, Wong RW. How SARS-CoV-2 and Other Viruses Build an Invasion Route to Hijack the Host Nucleocytoplasmic Trafficking System. Cells 2021; 10:1424. [PMID: 34200500 PMCID: PMC8230057 DOI: 10.3390/cells10061424] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 05/31/2021] [Accepted: 06/03/2021] [Indexed: 12/14/2022] Open
Abstract
The host nucleocytoplasmic trafficking system is often hijacked by viruses to accomplish their replication and to suppress the host immune response. Viruses encode many factors that interact with the host nuclear transport receptors (NTRs) and the nucleoporins of the nuclear pore complex (NPC) to access the host nucleus. In this review, we discuss the viral factors and the host factors involved in the nuclear import and export of viral components. As nucleocytoplasmic shuttling is vital for the replication of many viruses, we also review several drugs that target the host nuclear transport machinery and discuss their feasibility for use in antiviral treatment.
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Affiliation(s)
- Elma Sakinatus Sajidah
- Division of Nano Life Science in the Graduate School of Frontier Science Initiative, Kanazawa University, Kanazawa 920-1192, Japan;
| | - Keesiang Lim
- WPI-Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
| | - Richard W. Wong
- Division of Nano Life Science in the Graduate School of Frontier Science Initiative, Kanazawa University, Kanazawa 920-1192, Japan;
- WPI-Nano Life Science Institute, Kanazawa University, Kanazawa 920-1192, Japan
- Cell-Bionomics Research Unit, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa 920-1192, Japan
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26
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Meurens F, Dunoyer C, Fourichon C, Gerdts V, Haddad N, Kortekaas J, Lewandowska M, Monchatre-Leroy E, Summerfield A, Wichgers Schreur PJ, van der Poel WHM, Zhu J. Animal board invited review: Risks of zoonotic disease emergence at the interface of wildlife and livestock systems. Animal 2021; 15:100241. [PMID: 34091225 PMCID: PMC8172357 DOI: 10.1016/j.animal.2021.100241] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023] Open
Abstract
The ongoing coronavirus disease 19s pandemic has yet again demonstrated the importance of the human-animal interface in the emergence of zoonotic diseases, and in particular the role of wildlife and livestock species as potential hosts and virus reservoirs. As most diseases emerge out of the human-animal interface, a better understanding of the specific drivers and mechanisms involved is crucial to prepare for future disease outbreaks. Interactions between wildlife and livestock systems contribute to the emergence of zoonotic diseases, especially in the face of globalization, habitat fragmentation and destruction and climate change. As several groups of viruses and bacteria are more likely to emerge, we focus on pathogenic viruses of the Bunyavirales, Coronaviridae, Flaviviridae, Orthomyxoviridae, and Paramyxoviridae, as well as bacterial species including Mycobacterium sp., Brucella sp., Bacillus anthracis and Coxiella burnetii. Noteworthy, it was difficult to predict the drivers of disease emergence in the past, even for well-known pathogens. Thus, an improved surveillance in hotspot areas and the availability of fast, effective, and adaptable control measures would definitely contribute to preparedness. We here propose strategies to mitigate the risk of emergence and/or re-emergence of prioritized pathogens to prevent future epidemics.
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Affiliation(s)
- François Meurens
- INRAE, Oniris, BIOEPAR, 44307 Nantes, France; Department of Veterinary Microbiology and Immunology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon S7N5E3, Canada.
| | - Charlotte Dunoyer
- Direction de l'évaluation des risques, Anses, 94700 Maisons-Alfort, France
| | | | - Volker Gerdts
- Vaccine and Infectious Disease Organization (VIDO)-International Vaccine Centre (InterVac), University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E3, Canada
| | - Nadia Haddad
- Anses, INRAE, Ecole Nationale Vétérinaire d'Alfort, Laboratoire de Santé Animale, BIPAR, 94700 Maisons-Alfort, France
| | - Jeroen Kortekaas
- Wageningen Bioveterinary Research, Wageningen University and Research, Houtribweg 39, 8221 RA Lelystad, the Netherlands
| | - Marta Lewandowska
- Institute of Virology and Immunology (IVI), Sensemattstrasse 293, 3147 Mittelhäusern, Switzerland; Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | | | - Artur Summerfield
- Institute of Virology and Immunology (IVI), Sensemattstrasse 293, 3147 Mittelhäusern, Switzerland
| | - Paul J Wichgers Schreur
- Wageningen Bioveterinary Research, Wageningen University and Research, Houtribweg 39, 8221 RA Lelystad, the Netherlands
| | - Wim H M van der Poel
- Wageningen Bioveterinary Research, Wageningen University and Research, Houtribweg 39, 8221 RA Lelystad, the Netherlands
| | - Jianzhong Zhu
- College of Veterinary Medicine, Comparative Medicine Research Institute, Yangzhou University, 225009 Yangzhou, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, 225009 Yangzhou, China
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Ftiti Z, Ben Ameur H, Louhichi W. Does non-fundamental news related to COVID-19 matter for stock returns? Evidence from Shanghai stock market. ECONOMIC MODELLING 2021; 99:105484. [PMID: 36540851 PMCID: PMC9756967 DOI: 10.1016/j.econmod.2021.03.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 05/12/2023]
Abstract
The COVID-19 outbreak generates various types of news that affect economic and financial systems. No studies have assessed the effects of such news on financial markets. This study sheds light on the impact of non-fundamental news related to the COVID-19 pandemic on the liquidity and returns volatility. Because we examined extreme events, we performed quantile regression on daily data from December 31, 2019 to the end of lockdown restrictions in China on April 7, 2020. Results showed that the non-fundamental news, as the number of deaths and cases related to the COVID-19, raised the stock market returns volatility and reduced the level of stock market liquidity, increasing overall risk, whereas fundamental macroeconomic news remained largely immaterial for the stock market. These findings are explained by a knock-on effect because the health system's inability to manage and treat a high number of COVID-19 patients in intensive care led the country to implement a lockdown and the global economy to largely shut down.
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Affiliation(s)
- Zied Ftiti
- EDC Paris Business School, 70 Galerie des Damiers, La défense 1, 92415, Paris, France
| | | | - Waël Louhichi
- ESSCA School of Management, 55 Quai Alphonse le Gallo, Boulogne-Billancourt, 92513, Paris, France
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28
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Ripari N, Sartori AA, da Silva Honorio M, Conte FL, Tasca KI, Santiago KB, Sforcin JM. Propolis antiviral and immunomodulatory activity: a review and perspectives for COVID-19 treatment. J Pharm Pharmacol 2021; 73:281-299. [PMID: 33793885 PMCID: PMC7928728 DOI: 10.1093/jpp/rgaa067] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 12/22/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Viral outbreaks are a frequent concern for humans. A great variety of drugs has been used to treat viral diseases, which are not always safe and effective and may induce adverse effects, indicating the need for new antiviral drugs extracted from natural sources. Propolis is a bee-made product exhibiting many biological properties. An overview of viruses, antiviral immunity, propolis safety and its immunomodulatory and antiviral action is reported, as well as perspectives for coronavirus disease 2019 (COVID-19) treatment. PubMed platform was used for data collection, searching for the keywords "propolis", "virus", "antiviral", "antimicrobial" and "coronavirus". KEY FINDINGS Propolis is safe and exerts antiviral and immunomodulatory activity; however, clinical trials should investigate its effects on individuals with viral diseases, in combination or not with antiviral drugs or vaccines. SUMMARY Regarding COVID-19, the effects of propolis should be investigated directly on the virus in vitro or on infected individuals alone or in combination with antiviral drugs, due to its immunomodulatory and anti-inflammatory action. Propolis administration simultaneously with vaccines should be analyzed, due to its adjuvant properties, to enhance the individuals' immune response. The search for therapeutic targets may be useful to find out how propolis can help to control COVID-19.
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Affiliation(s)
- Nicolas Ripari
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
| | - Arthur Alves Sartori
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
| | - Mariana da Silva Honorio
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
| | - Fernanda Lopes Conte
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
| | - Karen Ingrid Tasca
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
| | - Karina Basso Santiago
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
| | - José Maurício Sforcin
- São Paulo State University (UNESP), Institute of Biosciences, Department of Chemical and Biological Sciences, Campus Botucatu, Botucatu, Brazil
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29
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Antiviral Cyanometabolites-A Review. Biomolecules 2021; 11:biom11030474. [PMID: 33810129 PMCID: PMC8004682 DOI: 10.3390/biom11030474] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/14/2022] Open
Abstract
Global processes, such as climate change, frequent and distant travelling and population growth, increase the risk of viral infection spread. Unfortunately, the number of effective and accessible medicines for the prevention and treatment of these infections is limited. Therefore, in recent years, efforts have been intensified to develop new antiviral medicines or vaccines. In this review article, the structure and activity of the most promising antiviral cyanobacterial products are presented. The antiviral cyanometabolites are mainly active against the human immunodeficiency virus (HIV) and other enveloped viruses such as herpes simplex virus (HSV), Ebola or the influenza viruses. The majority of the metabolites are classified as lectins, monomeric or dimeric proteins with unique amino acid sequences. They all show activity at the nanomolar range but differ in carbohydrate specificity and recognize a different epitope on high mannose oligosaccharides. The cyanobacterial lectins include cyanovirin-N (CV-N), scytovirin (SVN), microvirin (MVN), Microcystisviridis lectin (MVL), and Oscillatoria agardhii agglutinin (OAA). Cyanobacterial polysaccharides, peptides, and other metabolites also have potential to be used as antiviral drugs. The sulfated polysaccharide, calcium spirulan (CA-SP), inhibited infection by enveloped viruses, stimulated the immune system’s response, and showed antitumor activity. Microginins, the linear peptides, inhibit angiotensin-converting enzyme (ACE), therefore, their use in the treatment of COVID-19 patients with injury of the ACE2 expressing organs is considered. In addition, many cyanobacterial extracts were revealed to have antiviral activities, but the active agents have not been identified. This fact provides a good basis for further studies on the therapeutic potential of these microorganisms.
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30
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Gwenzi W, Rzymski P. When silence goes viral, Africa sneezes! A perspective on Africa's subdued research response to COVID-19 and a call for local scientific evidence. ENVIRONMENTAL RESEARCH 2021; 194:110637. [PMID: 33373609 PMCID: PMC7837055 DOI: 10.1016/j.envres.2020.110637] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 12/13/2020] [Accepted: 12/16/2020] [Indexed: 05/17/2023]
Abstract
By mid-September 2020, over 1.33 million confirmed COVID-19 cases and 32 thousand deaths had been reported in Africa. Global research on COVID-19 went 'viral' with a record 3487 research contributions comprising of 2062 journal papers and 1425 preprints published within the first three months following the outbreak of COVID-19. Surprisingly, the silence of the African research community has been unprecedented - contributing a paltry 0.6% (22 contributions), a figure nearly matched by Colombia (18 publications). Until now, a comprehensive perspective on the reasons for this subdued research response, and COVID-19 themes critical to Africa has been missing. We posit that while a milieu of factors accounts for this silence, unprecedented research opportunities exist to support COVID-19 decision and policy formulation in Africa. The subdued response reflects weak research systems, characterized by deep-rooted challenges, including severe lack of research expertise, funding, and infrastructure, coupled with poor working conditions. Hence, Africa's contribution to research on infectious diseases, including COVID-19, remains weak. Perceptions and attitudes among researchers and policy-makers on COVID-19, and the role of science in decision and policy-making also exist. Moreover, COVID-19 and earlier severe acute respiratory syndromes are considered as 'imported diseases' originating from outside Africa. Thus, notions may exist that the control methods will come from outside Africa through 'technology-transfer' or 'capacity-building'. Yet local COVID-19 research is needed to address knowledge gaps, including; (1) potential novel transmission of SARS-CoV-2, (2) adaption of generic COVID-19 control measures to suit African settings, (3) occurrence and persistence of SARS-CoV-2 in solid waste, wastewaters, on-site sanitation systems, and drinking water, and (4) the 'human factor' including the role of gender, perceptions, myths, attitudes, and religious beliefs in the transmission and control of COVID-19. Therefore, there is a need to: (1) strengthen local research capacity and evaluation systems, (2) consider biosafety and ethical issues, (3) initiate cross-disciplinary research and global collaboration on COVID-19, and (4) integrate science communication in COVID-19 programs.
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Affiliation(s)
- Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, Department of Soil Science and Agricultural Engineering, Faculty of Agriculture, University of Zimbabwe, P.O.Box MP 167, Mount Pleasant, Harare, Zimbabwe.
| | - Piotr Rzymski
- Department of Environmental Medicine, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznań, Poland; Integrated Science Association (ISA), Universal Scientific Education and Research Network (USERN), Poznań, Poland
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31
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Aryan H, Saxena A, Tiwari A. Correlation between bioactive lipids and novel coronavirus: constructive role of biolipids in curbing infectivity by enveloped viruses, centralizing on EPA and DHA. SYSTEMS MICROBIOLOGY AND BIOMANUFACTURING 2021; 1:186-192. [PMID: 38624677 PMCID: PMC7856852 DOI: 10.1007/s43393-020-00019-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/19/2022]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) belongs to the family coronaviridae. It is spherical and possesses proteins called spikes, which can clamp onto the human cells. Once in close interaction with the human cells, these viruses undergo structural change and can fuse with the cell membrane. The virus enters the host and starts the process of translation and transcription in the cells and uncoated genome, respectively. Due to the rapid transmittable nature of the virus, extant actions should be taken. The fatty acids administrated orally, or intravenously, could help us gear things up in providing resistance and preventing infection. Hence, the multiplication of the virus could be hindered by arachidonic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). In that context, the current review highlights the role of these unsaturated fatty acids and their derivatives such as lipoxins and resolvins in the inactivation of the enveloped coronavirus disease 2019 (COVID-19).
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Affiliation(s)
- Himani Aryan
- Diatoms Research Laboratory, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201301 India
| | - Abhishek Saxena
- Diatoms Research Laboratory, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201301 India
| | - Archana Tiwari
- Diatoms Research Laboratory, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh 201301 India
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Rabaan AA, Al-Ahmed SH, Sah R, Alqumber MA, Haque S, Patel SK, Pathak M, Tiwari R, Yatoo MI, Haq AU, Bilal M, Dhama K, Rodriguez-Morales AJ. MERS-CoV: epidemiology, molecular dynamics, therapeutics, and future challenges. Ann Clin Microbiol Antimicrob 2021; 20:8. [PMID: 33461573 PMCID: PMC7812981 DOI: 10.1186/s12941-020-00414-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 12/22/2020] [Indexed: 02/07/2023] Open
Abstract
The Severe Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) has gained research attention worldwide, given the current pandemic. Nevertheless, a previous zoonotic and highly pathogenic coronavirus, the Middle East Respiratory Syndrome coronavirus (MERS-CoV), is still causing concern, especially in Saudi Arabia and neighbour countries. The MERS-CoV has been reported from respiratory samples in more than 27 countries, and around 2500 cases have been reported with an approximate fatality rate of 35%. After its emergence in 2012 intermittent, sporadic cases, nosocomial infections and many community clusters of MERS continued to occur in many countries. Human-to-human transmission resulted in the large outbreaks in Saudi Arabia. The inherent genetic variability among various clads of the MERS-CoV might have probably paved the events of cross-species transmission along with changes in the inter-species and intra-species tropism. The current review is drafted using an extensive review of literature on various databases, selecting of publications irrespective of favouring or opposing, assessing the merit of study, the abstraction of data and analysing data. The genome of MERS-CoV contains around thirty thousand nucleotides having seven predicted open reading frames. Spike (S), envelope (E), membrane (M), and nucleocapsid (N) proteins are the four main structural proteins. The surface located spike protein (S) of betacoronaviruses has been established to be one of the significant factors in their zoonotic transmission through virus-receptor recognition mediation and subsequent initiation of viral infection. Three regions in Saudi Arabia (KSA), Eastern Province, Riyadh and Makkah were affected severely. The epidemic progression had been the highest in 2014 in Makkah and Riyadh and Eastern Province in 2013. With a lurking epidemic scare, there is a crucial need for effective therapeutic and immunological remedies constructed on sound molecular investigations.
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Affiliation(s)
- Ali A Rabaan
- Molecular Diagnostic Laboratory, Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia
| | - Shamsah H Al-Ahmed
- Specialty Paediatric Medicine, Qatif Central Hospital, Qatif, Saudi Arabia
| | - Ranjit Sah
- Tribhuvan University Institute of Medicine, Kathmandu, Nepal
| | - Mohammed A Alqumber
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Albaha University, Albaha, Saudi Arabia
| | - Shafiul Haque
- Research and Scientific Studies Unit, College of Nursing & Allied Health Sciences, Jazan University, Jazan, Saudi Arabia
| | - Shailesh Kumar Patel
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Mamta Pathak
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Ruchi Tiwari
- Department of Veterinary Microbiology and Immunology, College of Veterinary Sciences, UP Pandit Deen Dayal Upadhayay Pashu Chikitsa Vigyan Vishwavidyalay Evum Go-Anusandhan Sansthan (DUVASU), Mathura, 281001, India
| | - Mohd Iqbal Yatoo
- Division of Veterinary Clinical Complex, Faculty of Veterinary Sciences and Animal Husbandry, Sher-E-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shuhama, Alusteng Srinagar, Shalimar, Srinagar, Jammu and Kashmir, 190006, India
| | - Abrar Ul Haq
- Division of Clinical Veterinary Medicine Ethics & Jurisprudence, Faculty of Veterinary Sciences and Animal Husbandry, Sher E Kashmir University of Agricultural Sciences and Technology, Kashmir, Shuhama, Srinagar, 190006, India
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India.
| | - Alfonso J Rodriguez-Morales
- Public Health and Infection Research Group, Faculty of Health Sciences, Universidad Tecnologica de Pereira, Pereira, Colombia. .,Grupo de Investigación Biomedicina, Faculty of Medicine, Fundación Universitaria Autónoma de las Americas, Pereira, Risaralda, Colombia. .,School of Medicine, Universidad Privada Franz Tamayo (UNIFRANZ), Cochabamba, Bolivia.
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33
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Fu Y, Pan Y, Li Z, Li Y. The Utility of Specific Antibodies Against SARS-CoV-2 in Laboratory Diagnosis. Front Microbiol 2021; 11:603058. [PMID: 33519745 PMCID: PMC7838213 DOI: 10.3389/fmicb.2020.603058] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 12/01/2020] [Indexed: 01/08/2023] Open
Abstract
The Coronavirus Disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has now become a global pandemic due to its high transmissibility. The unavoidable shortcomings of traditional diagnostic assay, including nucleic acid testing, diverse serological assays characterized by high-throughput and less workload, are playing a more and more crucial role to supplement the nucleic acid test. In this review, we summarize the dynamic change of the specific IgM, IgG, and IgA antibodies against SARS-CoV-2 as well as neutralizing antibodies and discuss the clinical utility and limitations of the different serological assays. SARS-CoV-2, a newly discovered virus, shows some unique pathogenetic and epidemiological characteristics that have not been completely understood so far. Currently, studies about the antibody responses against SARS-CoV-2 and the clinical utility of serological testing are increasing. It's well suggested that the combination of serological tests and nucleic acid tests can cohesively improve the testing efficiency for identifying COVID-19 suspected patients.
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Affiliation(s)
- Yu Fu
- Department of Clinical Laboratory, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yunbao Pan
- Department of Clinical Laboratory, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Zhiqiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Yirong Li
- Department of Clinical Laboratory, Zhongnan Hospital, Wuhan University, Wuhan, China
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34
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Roychoudhury S, Das A, Sengupta P, Dutta S, Roychoudhury S, Choudhury AP, Ahmed ABF, Bhattacharjee S, Slama P. Viral Pandemics of the Last Four Decades: Pathophysiology, Health Impacts and Perspectives. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E9411. [PMID: 33333995 PMCID: PMC7765415 DOI: 10.3390/ijerph17249411] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 01/08/2023]
Abstract
The twenty-first century has witnessed some of the deadliest viral pandemics with far-reaching consequences. These include the Human Immunodeficiency Virus (HIV) (1981), Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) (2002), Influenza A virus subtype H1N1 (A/H1N1) (2009), Middle East Respiratory Syndrome Coronavirus (MERS-CoV) (2012) and Ebola virus (2013) and the Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) (2019-present). Age- and gender-based characterizations suggest that SARS-CoV-2 resembles SARS-CoV and MERS-CoV with regard tohigher fatality rates in males, and in the older population with comorbidities. The invasion-mechanism of SARS-CoV-2 and SARS-CoV, involves binding of its spike protein with angiotensin-converting enzyme 2 (ACE2) receptors; MERS-CoV utilizes dipeptidyl peptidase 4 (DPP4), whereas H1N1 influenza is equipped with hemagglutinin protein. The viral infections-mediated immunomodulation, and progressive inflammatory state may affect the functions of several other organs. Although no effective commercial vaccine is available for any of the viruses, those against SARS-CoV-2 are being developed at an unprecedented speed. Until now, only Pfizer/BioNTech's vaccine has received temporary authorization from the UK Medicines and Healthcare products Regulatory Agency. Given the frequent emergence of viral pandemics in the 21st century, proper understanding of their characteristics and modes of action are essential to address the immediate and long-term health consequences.
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Affiliation(s)
| | - Anandan Das
- Department of Life Science and Bioinformatics, Assam University, Silchar 788011, India;
| | - Pallav Sengupta
- Department of Physiology, Faculty of Medicine and Biomedical Sciences, MAHSA University, SP2, Bandar Saujana Putra, Jenjarom, Selangor 42610, Malaysia;
| | - Sulagna Dutta
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, MAHSA University, SP2, Bandar Saujana Putra, Jenjarom, Selangor 42610, Malaysia;
| | - Shatabhisha Roychoudhury
- Department of Microbiology, R. G. Kar Medical College and Hospital, Kolkata 700004, India;
- Health Centre, Assam University, Silchar 788011, India
| | - Arun Paul Choudhury
- Department of Obstetrics and Gynecology, Silchar Medical College and Hospital, Silchar 788014, India; (A.P.C.); (A.B.F.A.)
| | - A. B. Fuzayel Ahmed
- Department of Obstetrics and Gynecology, Silchar Medical College and Hospital, Silchar 788014, India; (A.P.C.); (A.B.F.A.)
| | | | - Petr Slama
- Department of Animal Morphology, Physiology and Genetics, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, 613 00 Brno, Czech Republic;
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Habibi-Yangjeh A, Asadzadeh-Khaneghah S, Feizpoor S, Rouhi A. Review on heterogeneous photocatalytic disinfection of waterborne, airborne, and foodborne viruses: Can we win against pathogenic viruses? J Colloid Interface Sci 2020; 580:503-514. [PMID: 32711201 PMCID: PMC7361121 DOI: 10.1016/j.jcis.2020.07.047] [Citation(s) in RCA: 206] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 02/07/2023]
Abstract
Microbial pathogenic contaminations have world widely represented a serious health hazard to humans. Viruses, as a member of microbial contaminants, seriously threaten human health due to their high environmental resistance, having small sizes, and causing an extensive range of diseases. Therefore, selecting an appropriate technology to remove viral contaminants from the air, water, and foods is of prominent significance. Traditional methods for viral disinfection have not proven to be highly practical and effective because they need high energy resources and operational expenses. In recent years, semiconductor-based photocatalysis has attracted more attention in the field of microorganism inactivation due to its outstanding performance and mild reaction conditions. Therefore, this review primarily concentrates on the recent development in viral inactivation/disinfection by heterogeneous photocatalysts. Moreover, the photocatalytic viral inactivation of waterborne, airborne, and foodborne viruses is discussed. Given the appealing merits of heterogeneous photocatalytic disinfection of viruses, there is no doubt that this technology will be an impressively active research field and a source of comfort and confidence to humans in battling against viruses.
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Affiliation(s)
- Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran; Nanoscience and Nanotechnology Research Group, Mineral and Drinking Waters Research Group, University of Mohaghegh Ardabili, Ardabil, Iran.
| | | | - Solmaz Feizpoor
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Afsar Rouhi
- Department of English Language, Faculty of Literature and Humanities, University of Mohaghegh Ardabili, Ardabil, Iran
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Alyami MH, Alyami HS, Warraich A. Middle East Respiratory Syndrome (MERS) and novel coronavirus disease-2019 (COVID-19): From causes to preventions in Saudi Arabia. Saudi Pharm J 2020; 28:1481-1491. [PMID: 32994704 PMCID: PMC7513931 DOI: 10.1016/j.jsps.2020.09.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 09/16/2020] [Indexed: 02/07/2023] Open
Abstract
Saudi Arabia is one of the countries that has been affected by COVID-19. At the beginning of March 2020, it revealed a steadily rising number of laboratory-confirmed cases. By 20th May 2020, 59,854 infected cases had been confirmed, with 329 deaths. To prevent a further outbreak of COVID-19, this article discusses the current understanding of COVID-19 and compares it with the outbreak of Middle East Respiratory Syndrome (MERS) in 2012 in Saudi Arabia. It also discusses the causes, transmission, symptoms, diagnosis, treatments and prevention measures to identify an applicable measure to control COVID-19.
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Affiliation(s)
- Mohammad H. Alyami
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia
| | - Hamad S. Alyami
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia
| | - Ansaar Warraich
- Life and Health Sciences, College of Pharmacy, Aston University, Birmingham B4 7ET, United Kingdom
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Agrawal H, Das N, Nathani S, Saha S, Saini S, Kakar SS, Roy P. An Assessment on Impact of COVID-19 Infection in a Gender Specific Manner. Stem Cell Rev Rep 2020; 17:94-112. [PMID: 33029768 PMCID: PMC7541100 DOI: 10.1007/s12015-020-10048-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/25/2020] [Indexed: 12/19/2022]
Abstract
Coronavirus disease 2019 (COVID-19) is caused by novel coronavirus Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It was first time reported in December 2019 in Wuhan, China and thereafter quickly spread across the globe. Till September 19, 2020, COVID-19 has spread to 216 countries and territories. Severe infection of SARS-CoV-2 cause extreme increase in inflammatory chemokines and cytokines that may lead to multi-organ damage and respiratory failure. Currently, no specific treatment and authorized vaccines are available for its treatment. Renin angiotensin system holds a promising role in human physiological system specifically in regulation of blood pressure and electrolyte and fluid balance. SARS-CoV-2 interacts with Renin angiotensin system by utilizing angiotensin-converting enzyme 2 (ACE2) as a receptor for its cellular entry. This interaction hampers the protective action of ACE2 in the cells and causes injuries to organs due to persistent angiotensin II (Ang-II) level. Patients with certain comorbidities like hypertension, diabetes, and cardiovascular disease are under the high risk of COVID-19 infection and mortality. Moreover, evidence obtained from several reports also suggests higher susceptibility of male patients for COVID-19 mortality and other acute viral infections compared to females. Analysis of severe acute respiratory syndrome coronavirus (SARS) and Middle East respiratory syndrome coronavirus (MERS) epidemiological data also indicate a gender-based preference in disease consequences. The current review addresses the possible mechanisms responsible for higher COVID-19 mortality among male patients. The major underlying aspects that was looked into includes smoking, genetic factors, and the impact of reproductive hormones on immune systems and inflammatory responses. Detailed investigations of this gender disparity could provide insight into the development of patient tailored therapeutic approach which would be helpful in improving the poor outcomes of COVID-19. Graphical abstract.
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Affiliation(s)
- Himanshu Agrawal
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Neeladrisingha Das
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Sandip Nathani
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Sarama Saha
- Department of Biochemistry, All India Institute of Medical Sciences, Rishikesh, India
| | - Surendra Saini
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Sham S Kakar
- Department of Physiology, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, 40292, USA
| | - Partha Roy
- Molecular Endocrinology Laboratory, Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
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Willows S, Alam SB, Sandhu JK, Kulka M. A Canadian perspective on severe acute respiratory syndrome coronavirus 2 infection and treatment: how prevalent underlying inflammatory disease contributes to pathogenesis. Biochem Cell Biol 2020; 99:173-194. [PMID: 33027600 DOI: 10.1139/bcb-2020-0341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19), a serious respiratory illness caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has emerged as a global pandemic. Canada reported its first case of COVID-19 on the 25th January 2020. By March 2020, the virus had spread within Canadian communities reaching the most frail and vulnerable elderly population in long-term care facilities. The majority of cases were reported in the provinces of Quebec, Ontario, Alberta, and British Columbia, and the highest mortality was seen among individuals aged 65 years or older. Canada has the highest prevalence and incidence rates of several chronic inflammatory diseases, such as multiple sclerosis, inflammatory bowel disease, and Parkinson's disease. Many elderly Canadians also live with comorbid medical illnesses, such as hypertension, diabetes, cardiovascular disease, and chronic lung disease, and are more likely to suffer from severe COVID-19 with a poor prognosis. It is becoming increasingly evident that underlying inflammatory disease contributes to the pathogenesis of SARS-CoV-2. Here, we review the mechanisms behind SARS-CoV-2 infection, and the host inflammatory responses that lead to resolution or progression to severe COVID-19 disease. Furthermore, we discuss the landscape of COVID-19 therapeutics that are currently in development in Canada.
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Affiliation(s)
- Steven Willows
- Nanotechnology Research Centre, National Research Council Canada, 11421 Saskatchewan Drive, Edmonton, AB T6G 2A3, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Syed Benazir Alam
- Nanotechnology Research Centre, National Research Council Canada, 11421 Saskatchewan Drive, Edmonton, AB T6G 2A3, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
| | - Jagdeep K Sandhu
- Human Health Therapeutics Research Centre, National Research Council Canada, 1200 Montreal Road, Ottawa, ON K1A 0R6, Canada.,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON K1H 8M5, Canada
| | - Marianna Kulka
- Nanotechnology Research Centre, National Research Council Canada, 11421 Saskatchewan Drive, Edmonton, AB T6G 2A3, Canada.,Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada
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Wang L, Alexander CA. COVID-19 Compared with Other Viral Diseases: Novelties, Progress, and Challenges. ELECTRONIC JOURNAL OF GENERAL MEDICINE 2020. [DOI: 10.29333/ejgm/8575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abstract
Since the WHO declared coronavirus disease 2019 (COVID-19) as a pandemic, huge efforts were made to understand the disease, its pathogenesis, and treatment. COVID-19 is caused by severe acute respiratory syndrome (SARS) coronavirus-2 (SARS-CoV2), which is closely related to SARS-associated coronavirus (SARS-CoV). This article attempts to provide a timely and comprehensive review of the coronaviruses over the years, and the epidemics they caused in this century with a focus on the current pandemic COVID-19. It also covers the basics about the disease immunopathogenesis, diagnosis, prognosis, and treatment options. Although almost every single week new clinical findings are published, which change our understanding of COVID-19, this review explores and explains the disease and the treatment options available so far. In summary, many therapeutic options are being investigated to treat and/or ameliorate the symptoms of COVID-19, but none is registered and no sufficient data to support immune-based therapy beyond the context of clinical trials. For that, strengthening our immune system is the best defense at this time.
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Affiliation(s)
- Areej M Assaf
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
| | - Randa N Haddadin
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
| | - Amal A Akour
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
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Soheili M, Haji-allahverdipoor K, Khadem-erfan MB, Baban B, Nikkhoo B, Eliasi A, Nasseri S. Combination of C21 and ARBs with rhACE2 as a therapeutic protocol: A new promising approach for treating ARDS in patients with coronavirus infection. Med J Islam Repub Iran 2020; 34:120. [PMID: 33316002 PMCID: PMC7722962 DOI: 10.34171/mjiri.34.120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Indexed: 12/15/2022] Open
Abstract
Background: Coronavirus disease 2019 (COVID-19) is caused by a new severe acute respiratory syndrome Coronavirus. COVID-19 patients are at risk for acute respiratory distress syndrome and death from respiratory failure. Methods: In this study the complete genome of the SARS-CoV-2 reference sequence, geologically isolated types, and Coronavirus related to human diseases were compared by the Molecular Phylogenetic Maximum Likelihood method. The secondary and tertiary structures of the main protease of SARS-CoV were defined as the most similar viruses to SARS-CoV-2, aligned with chimera software. Therefore, considering ineffective antiviral medications used for SARS-CoV and the importance of preventing acute respiratory distress syndrome as the main cause of mortality, 2 strategies were adopted to acquire the most effective drug combination. Results: The results of phylogenic analysis showed that SARS-CoV is the most similar virus to SARS-CoV-2. The secondary structure and superimposing of tertiary structure did not show a significant difference between SARS and SARS-CoV-2 3C-like main protease and the root means square deviation between Cα atoms did not support the difference between the 2 protein structures. Thus, these 2 mechanisms were fostered in accordance with the correlation between acute respiratory distress syndrome-related Coronavirus, angiotensin-converting enzyme 2 on one side and the possible treatments for reducing the respiratory side effects on the other. The analysis of renin-angiotensin system as well as the tested drugs applied to acute respiratory distress syndrome cases, indicated that angiotensin II receptor blockers, angiotensin-converting enzyme inhibitors, and C21 as nonpeptide agonist might possess a promising modality of treatment for acute respiratory distress syndrome. Furthermore, implementing recombinant human ACE2 as a competitive receptor might be an effective way to trap and chelate the SARS-CoV-2 particles. Conclusion: The data suggest that combination therapy of angiotensin II receptor blockers and C21 could be a potential pharmacologic regimen to control and reduce acute respiratory distress syndrome. Moreover, rhACE2 can be recommended as an effective protective antiviral therapy in the treatment of COVID-19 and its complications.
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Affiliation(s)
- Marzieh Soheili
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Kaveh Haji-allahverdipoor
- Department of Biotechnology and Plant Breeding, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
- Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mohamad Bagher Khadem-erfan
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Babak Baban
- Department of Oral Biology and Diagnostic Sciences, DCG, Augusta University, Augusta GA, USA
| | - Bahram Nikkhoo
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
- Department of Pathology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Anwar Eliasi
- Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sherko Nasseri
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
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Knowledge and perceptions about COVID-19 among the medical and allied health science students in India: An online cross-sectional survey. CLINICAL EPIDEMIOLOGY AND GLOBAL HEALTH 2020; 9:104-109. [PMID: 32838066 PMCID: PMC7420087 DOI: 10.1016/j.cegh.2020.07.008] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/13/2020] [Accepted: 07/22/2020] [Indexed: 01/08/2023] Open
Abstract
Background An infection (COVID-19) without any specific cure makes the people more vulnerable to get affected due to insufficient knowledge and unhealthy practices. In this scenario, healthcare students can act as reliable information providers. This study aimed to assess the knowledge and perception about COVID-19 among medical and allied health science students. Methods A web-based cross sectional survey was conducted during February and March 2020. A 24-item survey was developed and randomly distributed among the study population. Descriptive statistics was applied to represent participant characteristics and Chi-square test was used to evaluate the level of association among variables with a significance level of p < 0.01. Results Total, 97.95% (715/730) participants completed the survey. High proportion of students were from pharmacy (45.73%) followed by medical (22.52%), physiotherapy, nursing and dental background. Majority of participants were having adequate knowledge while about 18% had partial knowledge about the symptoms of severe COVID-19 cases. Students have shown a positive perception of COVID-19 prevention and control while few invalid responses related to the use of herbal medicines or garlic were noted. About 50% had rightly stated that, the antibiotics and vaccine are not effective in COVID-19 infection at present. Conclusion As the COVID-19 cases are rapidly increasing worldwide, it is essential to improve the knowledge and beliefs among general public to prevent its spread. Health care students with their education background and basic understanding about COVID-19 can play a significant role by making community people aware about the seriousness of this pandemic situation.
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OUTBREAK of novel corona virus disease (COVID-19): Antecedence and aftermath. Eur J Pharmacol 2020; 884:173381. [PMID: 32721449 PMCID: PMC7381902 DOI: 10.1016/j.ejphar.2020.173381] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/04/2020] [Accepted: 07/13/2020] [Indexed: 01/07/2023]
Abstract
Outbreak of Coronavirus disease 2019 (COVID-19) started in mid of December 2019 and spread very rapidly across the globe within a month of its outbreak. Researchers all across the globe started working to find out its possible treatments. However, most of initiatives taken were based on various hypotheses and till date no successful treatments have been achieved. Some strategies adopted by China where existing antiviral therapy was initially used to treat COVID-19 have not given very successful results. Researchers from Thailand explored the use of combination of anti-influenza drugs such as Oseltamivir, Lopinavir and Ritonavir to treat it. In some cases, combination therapy of antiviral drugs with chloroquine showed better action against COVID-19. Some of the clinical studies showed very good effect of chloroquine and hydroxychloroquine against COVID-19, however, they were not recommended due to serious clinical toxicity. In some cases, use of rho kinase inhibitor, fasudil was found very effective. In some of the countries, antibody-based therapies have proved fairly successful. The use of BCG vaccines came in light; however, they were not found successful due to lack of full-proof mechanistic studies. In Israel as well as in other developed countries, pluristems allogeneic placental expanded cell therapy has been found successful. Some phytochemicals and nutraceuticals have also been explored to treat it. In a recent report, the use of dexamethasone was found very effective in patients suffering from COVID-19. Its effect was most striking among patients on ventilator. The research for vaccines that can prevent the disease is still going on. In light of the dynamic trends, present review focuses on etiopathogenesis, factors associated with spreading of the virus, and possible strategies to treat this deadly infection. In addition, it attempts to compile the recent updates on development of drugs and vaccines for the dreaded disease.
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Dong S, Liu P, Luo Y, Cui Y, Song L, Chen Y. Pathophysiology of SARS-CoV-2 infection in patients with intracerebral hemorrhage. Aging (Albany NY) 2020; 12:13791-13802. [PMID: 32633728 PMCID: PMC7377897 DOI: 10.18632/aging.103511] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 06/05/2020] [Indexed: 04/22/2023]
Abstract
Intracerebral hemorrhage (ICH) is associated with old age and underlying conditions such as hypertension and diabetes. ICH patients are vulnerable to SARS-CoV-2 infection and develop serious complications as a result of infection. The pathophysiology of ICH patients with SARS-CoV-2 infection includes viral invasion, dysfunction of the ACE2-Ang (1-7)-MasR and ACE-Ang II-AT1R axes, overactive immune response, cytokine storm, and excessive oxidative stress. These patients have high morbidity and mortality due to hyaline membrane formation, respiratory failure, neurologic deficits, and multiple organ failure.
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Affiliation(s)
- Sisi Dong
- The Second Xiangya Hospital, Central South University, Changsha 410011, Hunan, China
| | - Peipei Liu
- Department of Neurology, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Yuhan Luo
- Department of Neurology, Clinical Medical College of Yangzhou, Dalian Medical University, Yangzhou 225001, Jiangsu, China
| | - Ying Cui
- Department of Neurology, Clinical Medical College of Yangzhou, Dalian Medical University, Yangzhou 225001, Jiangsu, China
| | - Lilong Song
- Department of Neurology, Clinical Medical College of Yangzhou, Dalian Medical University, Yangzhou 225001, Jiangsu, China
| | - Yingzhu Chen
- Department of Neurology, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
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Nowakowska J, Sobocińska J, Lewicki M, Lemańska Ż, Rzymski P. When science goes viral: The research response during three months of the COVID-19 outbreak. Biomed Pharmacother 2020; 129:110451. [PMID: 32603887 PMCID: PMC7309857 DOI: 10.1016/j.biopha.2020.110451] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/18/2020] [Accepted: 06/21/2020] [Indexed: 12/22/2022] Open
Abstract
A bibliometric study on the first 3 months of research on COVID-19 was performed. A total of 2062 articles in 578 journals and 1425 preprints were identified. The scientific contributions from 73 countries were seen. The highest number of original research emerged from China. The scientific response to COVID-19 is unprecedented.
Here we present the results of a bibliometric survey of peer-reviewed and pre-print papers published in the English language on issues related to COVID-19 within the first three months since a cluster of a severe acute respiratory disease of unknown etiology was officially confirmed by the Chinese Center for Disease Control and Prevention on 31 December 2019. A systematic search using PubMed/Medline and Scopus databases and preprint servers was performed. The articles were classified according to their type, subject and country of origin. Up to 31 March 2020, a total of 2062 papers published in 578 peer-reviewed journals and 1425 preprints posted mostly on medRxiv (55.4 %), were identified. The mean number of published journal papers and preprints per day in the considered period was 27 and 12, respectively, and reached a maximum of 51 and 46 per day in March, respectively. The identified articles, journal papers and preprints, mostly covered the epidemiology of COVID-19 (35.7 %), clinical aspects of infection (21.0 %), preventative measures (12.8 %), treatment options (12.5 %), diagnostics (12.2 %), mathematical modeling of disease transmission and mitigation (9.6 %), and molecular biology and pathogenesis of SARS-CoV-2 (8.7 %). The majority of the journal papers were commentaries (38.5 %), reviews (33.6 %) and original research (21.3 %), while preprints predominantly presented original results (89.8 %). Chinese scientists contributed the highest share of original research and were responsible for 32.9 % journal papers and 43.9 % preprints published in the considered period. A high number of contributions was also seen from the United States, the United Kingdom, and Italy. The benefits and potential risks of such a massive publication output are discussed. The scientific response seen during the first 3 months of the COVID-19 outbreak is a demonstration of the capabilities of modern science to react rapidly to emerging global health threats by providing and discussing the essential information for understanding the etiological factor, its spread, preventative measures, and mitigation strategies.
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Affiliation(s)
- Joanna Nowakowska
- Poznan University of Medical Sciences, Fredry 10, 61-701, Poznań, Poland
| | - Joanna Sobocińska
- Poznan University of Medical Sciences, Fredry 10, 61-701, Poznań, Poland
| | - Mateusz Lewicki
- Pomeranian Medical University in Szczecin, Rybacka 1, 70-204, Szczecin, Poland
| | - Żaneta Lemańska
- Poznan University of Medical Sciences, Fredry 10, 61-701, Poznań, Poland
| | - Piotr Rzymski
- Department of Environmental Medicine, Poznan University of Medical Sciences, Rokietnicka 8, 60-806, Poznań, Poland; Integrated Science Association (ISA), Universal Scientific Education and Research Network (USERN), Poznań, Poland.
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Abstract
A new coronavirus, severe acute respiratory syndrome coronavirus 2, was first discovered in Wuhan, China, in December 2019. As of 7 April 2020, the new coronavirus has spread quickly to 184 countries and aroused the attention of the entire world. No targeted drugs have yet been available for intervention and treatment of this virus. The sharing of academic information is crucial to risk assessment and control activities in outbreak countries. In this review, we summarize the epidemiological, genetic and clinical characteristics of the virus as well as laboratory testing and treatments to understand the nature of the virus. We hope this review will be helpful to prevent viral infections in outbreak countries and regions.
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Affiliation(s)
- Meixian Wang
- National Center for Birth Defect Monitoring, Key Laboratory of Birth Defects & Related Diseases of Women & Children, Ministry of Education, West China Second University Hospital, & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, PR China
| | - Nannan Zhang
- National Center for Birth Defect Monitoring, Key Laboratory of Birth Defects & Related Diseases of Women & Children, Ministry of Education, West China Second University Hospital, & State Key Laboratory of Biotherapy, Sichuan University, Chengdu, PR China
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Chen B, Tian EK, He B, Tian L, Han R, Wang S, Xiang Q, Zhang S, El Arnaout T, Cheng W. Overview of lethal human coronaviruses. Signal Transduct Target Ther 2020; 5:89. [PMID: 32533062 PMCID: PMC7289715 DOI: 10.1038/s41392-020-0190-2] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 02/05/2023] Open
Abstract
Coronavirus infections of multiple origins have spread to date worldwide, causing severe respiratory diseases. Seven coronaviruses that infect humans have been identified: HCoV-229E, HCoV-OC43, HCoV-NL63, HCoV-HKU1, SARS-CoV, MERS-CoV, and SARS-CoV-2. Among them, SARS-CoV and MERS-CoV caused outbreaks in 2002 and 2012, respectively. SARS-CoV-2 (COVID-19) is the most recently discovered. It has created a severe worldwide outbreak beginning in late 2019, leading to date to over 4 million cases globally. Viruses are genetically simple, yet highly diverse. However, the recent outbreaks of SARS-CoV and MERS-CoV, and the ongoing outbreak of SARS-CoV-2, indicate that there remains a long way to go to identify and develop specific therapeutic treatments. Only after gaining a better understanding of their pathogenic mechanisms can we minimize viral pandemics. This paper mainly focuses on SARS-CoV, MERS-CoV, and SARS-CoV-2. Here, recent studies are summarized and reviewed, with a focus on virus-host interactions, vaccine-based and drug-targeted therapies, and the development of new approaches for clinical diagnosis and treatment.
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Affiliation(s)
- Bin Chen
- Division of Respiratory and Critical Care Medicine, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Er-Kang Tian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Bin He
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lejin Tian
- Division of Respiratory and Critical Care Medicine, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Ruiying Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shuangwen Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Qianrong Xiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Shu Zhang
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | | | - Wei Cheng
- Division of Respiratory and Critical Care Medicine, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, 610041, China.
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On the Coronaviruses and Their Associations with the Aquatic Environment and Wastewater. WATER 2020. [DOI: 10.3390/w12061598] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The outbreak of Coronavirus Disease 2019 (COVID-19), a severe respiratory disease caused by betacoronavirus SARS-CoV-2, in 2019 that further developed into a pandemic has received an unprecedented response from the scientific community and sparked a general research interest into the biology and ecology of Coronaviridae, a family of positive-sense single-stranded RNA viruses. Aquatic environments, lakes, rivers and ponds, are important habitats for bats and birds, which are hosts for various coronavirus species and strains and which shed viral particles in their feces. It is therefore of high interest to fully explore the role that aquatic environments may play in coronavirus spread, including cross-species transmissions. Besides the respiratory tract, coronaviruses pathogenic to humans can also infect the digestive system and be subsequently defecated. Considering this, it is pivotal to understand whether wastewater can play a role in their dissemination, particularly in areas with poor sanitation. This review provides an overview of the taxonomy, molecular biology, natural reservoirs and pathogenicity of coronaviruses; outlines their potential to survive in aquatic environments and wastewater; and demonstrates their association with aquatic biota, mainly waterfowl. It also calls for further, interdisciplinary research in the field of aquatic virology to explore the potential hotspots of coronaviruses in the aquatic environment and the routes through which they may enter it.
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Petrosillo N, Viceconte G, Ergonul O, Ippolito G, Petersen E. COVID-19, SARS and MERS: are they closely related? Clin Microbiol Infect 2020; 26:729-734. [PMID: 32234451 PMCID: PMC7176926 DOI: 10.1016/j.cmi.2020.03.026] [Citation(s) in RCA: 657] [Impact Index Per Article: 164.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 03/09/2020] [Accepted: 03/21/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND The 2019 novel coronavirus (SARS-CoV-2) is a new human coronavirus which is spreading with epidemic features in China and other Asian countries; cases have also been reported worldwide. This novel coronavirus disease (COVID-19) is associated with a respiratory illness that may lead to severe pneumonia and acute respiratory distress syndrome (ARDS). Although related to the severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS), COVID-19 shows some peculiar pathogenetic, epidemiological and clinical features which to date are not completely understood. AIMS To provide a review of the differences in pathogenesis, epidemiology and clinical features of COVID-19, SARS and MERS. SOURCES The most recent literature in the English language regarding COVID-19 has been reviewed, and extracted data have been compared with the current scientific evidence about SARS and MERS epidemics. CONTENT COVID-19 seems not to be very different from SARS regarding its clinical features. However, it has a fatality rate of 2.3%, lower than that of SARS (9.5%) and much lower than that of MERS (34.4%). The possibility cannot be excluded that because of the less severe clinical picture of COVID-19 it can spread in the community more easily than MERS and SARS. The actual basic reproductive number (R0) of COVID-19 (2.0-2.5) is still controversial. It is probably slightly higher than the R0 of SARS (1.7-1.9) and higher than that of MERS (<1). A gastrointestinal route of transmission for SARS-CoV-2, which has been assumed for SARS-CoV and MERS-CoV, cannot be ruled out and needs further investigation. IMPLICATIONS There is still much more to know about COVID-19, especially as concerns mortality and its capacity to spread on a pandemic level. Nonetheless, all of the lessons we learned in the past from the SARS and MERS epidemics are the best cultural weapons with which to face this new global threat.
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Affiliation(s)
- N Petrosillo
- National Institute for Infectious Diseases 'L. Spallanzani', IRCCS, Rome, Italy.
| | - G Viceconte
- University 'Federico II', Department of Clinical Medicine and Surgery, Naples, Italy
| | - O Ergonul
- Koc University, School of Medicine, Istanbul, Turkey; ESCMID Executive Committee, Switzerland
| | - G Ippolito
- National Institute for Infectious Diseases 'L. Spallanzani', IRCCS, Rome, Italy
| | - E Petersen
- Directorate General for Disease Surveillance and Control, Min of Health, Muscat, Oman; ESCMID Emerging Infections Task Force, ESCMID, Basel, Switzerland; Institute for Clinical Medicine, Faculty of Health Sciences, University of Aarhus, Denmark
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