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Li H, Pinette M, Smith G, Goolia M, Handel K, Nebroski M, Lung O, Pickering BS. Distinguishing host responses, extensive viral dissemination and long-term viral RNA persistence in domestic sheep experimentally infected with Crimean-Congo haemorrhagic fever virus Kosovo Hoti. Emerg Microbes Infect 2024; 13:2302103. [PMID: 38189080 PMCID: PMC10810640 DOI: 10.1080/22221751.2024.2302103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/31/2023] [Indexed: 01/09/2024]
Abstract
Crimean-Congo haemorrhagic fever orthonairovirus (CCHFV) is a tick-borne, risk group 4 pathogen that often causes a severe haemorrhagic disease in humans (CCHF) with high case fatality rates. The virus is believed to be maintained in a tick-vertebrate-tick ecological cycle involving numerous wild and domestic animal species; however the biology of CCHFV infection in these animals remains poorly understood. Here, we experimentally infect domestic sheep with CCHFV Kosovo Hoti, a clinical isolate representing high pathogenicity to humans and increasingly utilized in current research. In the absence of prominent clinical signs, the infection leads to an acute viremia and coinciding viral shedding, fever and markers for potential impairment in liver and kidney functions. A number of host responses distinguish the subclinical infection in sheep versus fatal infection in humans. These include an early reduction of neutrophil recruitment and its chemoattractant, IL-8, in the blood stream of infected sheep, whereas neutrophil infiltration and elevated IL-8 are features of fatal CCHFV infections reported in immunodeficient mice and humans. Several inflammatory cytokines that correlate with poor disease outcomes in humans and have potential to cause vascular dysfunction, a primary hallmark of severe CCHF, are down-regulated or restricted from increasing in sheep. Of particular interest, the detection of CCHFV RNA (including full-length genome) in a variety of sheep tissues long after the acute phase of infection indicates a widespread viral dissemination in the host and suggests a potentially long-term persisting impact of CCHFV infection. These findings reveal previously unrecognized aspects of CCHFV biology in animals.
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Affiliation(s)
- Hongzhao Li
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Mathieu Pinette
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Greg Smith
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Melissa Goolia
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Katherine Handel
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Michelle Nebroski
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Oliver Lung
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Bradley S. Pickering
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
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Suvvari TK, Mahal A, Kandi V, Alotaibi HF, Mishra S, Mohapatra RK. The urgency of Marburg therapeutics: preventing local outbreaks from the potential global spread. Front Microbiol 2024; 15:1378314. [PMID: 39011143 PMCID: PMC11248717 DOI: 10.3389/fmicb.2024.1378314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/31/2024] [Indexed: 07/17/2024] Open
Affiliation(s)
- Tarun Kumar Suvvari
- Department of Medicine, Rangaraya Medical College, Kakinada, India
- Department of Medicine, Dr. YSR University of Health Sciences, Vijayawada, India
- Department of Medicine, Squad Medicine and Research (SMR), Vizag, India
| | - Ahmed Mahal
- Department of Medical Biochemical Analysis, College of Health Technology, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Venkataramana Kandi
- Department of Microbiology, Prathima Institute of Medical Sciences, Karimnagar, Telangana, India
| | - Hadil Faris Alotaibi
- College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Snehasish Mishra
- School of Biotechnology, Campus-11, KIIT Deemed-to-be-University, Bhubaneswar, Odisha, India
| | - Ranjan K. Mohapatra
- Department of Chemistry, Government College of Engineering, Keonjhar, Odisha, India
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Sweileh WM. Neuroleptic malignant syndrome and serotonin syndrome: a comparative bibliometric analysis. Orphanet J Rare Dis 2024; 19:221. [PMID: 38825678 PMCID: PMC11145872 DOI: 10.1186/s13023-024-03227-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/27/2024] [Indexed: 06/04/2024] Open
Abstract
OBJECTIVE This study aimed to analyze and map scientific literature on Neuroleptic Malignant Syndrome (NMS) and Serotonin Syndrome (SS) from prestigious, internationally indexed journals. The objective was to identify key topics, impactful articles, prominent journals, research output, growth patterns, hotspots, and leading countries in the field, providing valuable insights for scholars, medical students, and international funding agencies. METHODS A systematic search strategy was implemented in the PubMed MeSH database using specific keywords for NMS and SS. The search was conducted in the Scopus database, renowned for its extensive coverage of scholarly publications. Inclusion criteria comprised articles published from 1950 to December 31st, 2022, restricted to journal research and review articles written in English. Data were analyzed using Microsoft Excel for descriptive analysis, and VOSviewer was employed for bibliometric mapping. RESULTS The search yielded 1150 articles on NMS and 587 on SS, with the majority being case reports. Growth patterns revealed a surge in NMS research between 1981 and 1991, while SS research increased notably between 1993 and 1997. Active countries and journals differed between NMS and SS, with psychiatry journals predominating for NMS and pharmacology/toxicology journals for SS. Authorship analysis indicated higher multi-authored articles for NMS. Top impactful articles focused on review articles and pathogenic mechanisms. Research hotspots included antipsychotics and catatonia for NMS, while SS highlighted drug interactions and specific medications like linezolid and tramadol. CONCLUSIONS NMS and SS represent rare but life-threatening conditions, requiring detailed clinical and scientific understanding. Differential diagnosis and management necessitate caution in prescribing medications affecting central serotonin or dopamine systems, with awareness of potential drug interactions. International diagnostic tools and genetic screening tests may aid in safe diagnosis and prevention. Reporting rare cases and utilizing bibliometric analysis enhance knowledge dissemination and research exploration in the field of rare drug-induced medical conditions.
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Affiliation(s)
- Waleed M Sweileh
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
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Bermudez-Santana CI, Gallego-Gómez JC. Toward a Categorization of Virus-ncRNA Interactions in the World of RNA to Disentangle the Tiny Secrets of Dengue Virus. Viruses 2024; 16:804. [PMID: 38793685 PMCID: PMC11125801 DOI: 10.3390/v16050804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024] Open
Abstract
In recent years, the function of noncoding RNAs (ncRNAs) as regulatory molecules of cell physiology has begun to be better understood. Advances in viral molecular biology have shown that host ncRNAs, cellular factors, and virus-derived ncRNAs and their interplay are strongly disturbed during viral infections. Nevertheless, the folding of RNA virus genomes has also been identified as a critical factor in regulating canonical and non-canonical functions. Due to the influence of host ncRNAs and the structure of RNA viral genomes, complex molecular and cellular processes in infections are modulated. We propose three main categories to organize the current information about RNA-RNA interactions in some well-known human viruses. The first category shows examples of host ncRNAs associated with the immune response triggered in viral infections. Even though miRNAs introduce a standpoint, they are briefly presented to keep researchers moving forward in uncovering other RNAs. The second category outlines interactions between virus-host ncRNAs, while the third describes how the structure of the RNA viral genome serves as a scaffold for processing virus-derived RNAs. Our grouping may provide a comprehensive framework to classify ncRNA-host-cell interactions for emerging viruses and diseases. In this sense, we introduced them to organize DENV-host-cell interactions.
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Affiliation(s)
- Clara Isabel Bermudez-Santana
- Computational and theoretical RNomics Group, Center of Excellence in Scientific Computing, Universidad Nacional de Colombia, Bogotá 111321, Colombia
| | - Juan Carlos Gallego-Gómez
- Grupo de Medicina de Traslación, Facultad de Medicina, Universidad de Antioquia, Medellín 050010, Colombia;
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Jiang Y, Cai Y, Zhang X, Chen L, Zhou X, Chen Y. A Two-Decade Bibliometric Analysis of Laser in Ophthalmology: From Past to Present. Clin Ophthalmol 2024; 18:1313-1328. [PMID: 38765459 PMCID: PMC11100493 DOI: 10.2147/opth.s458840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 04/26/2024] [Indexed: 05/22/2024] Open
Abstract
Background Laser therapy has been proven as an effective technique for managing ophthalmological disorders. To guide future research, we conducted a bibliometric analysis of laser applications in eye diseases from 1990 to 2022, aiming to identify key themes and trends. Methods We retrieved 3027 publications from the Web of Science Core Collection (WoSCC). Bibliometrix was used for science mapping of the literature, while VOSviewer and CiteSpace were applied to visualize co-authorship, co-citation, co-occurrence, and bibliographic coupling networks. Results From a co-citation reference network, we identified 52 distinct clusters. Our analysis uncovered three main research trends. The first trend revolves around the potential evolution of corneal laser surgery techniques, shifting from the treatment of refractive errors to broader applications in biomedical optics. The second trend illustrates the advancement of laser applications in treating a range of disorders, from retinal and ocular surface diseases to glaucoma. The third trend focuses on the innovative uses of established technologies. Conclusion This study offers significant insights into the evolution of laser applications in ophthalmology over the past 30 years, which will undoubtedly assist scientists in directing further research in this promising field.
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Affiliation(s)
- Yaping Jiang
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Yuying Cai
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Xin Zhang
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Li Chen
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Xingtao Zhou
- Eye Institute and Department of Ophthalmology, Institute for Medical and Engineering Innovation, Eye & ENT Hospital, Fudan University; NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai, People’s Republic of China
| | - Yihui Chen
- Department of Ophthalmology, Yangpu Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
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Lyu Y, Li W, Guo Q, Wu H. Mapping knowledge landscapes and emerging trends of Marburg virus: A text-mining study. Heliyon 2024; 10:e29691. [PMID: 38655363 PMCID: PMC11036101 DOI: 10.1016/j.heliyon.2024.e29691] [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: 03/01/2024] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/26/2024] Open
Abstract
Background Marburg virus (MARV), a close relative of Ebola virus, could induce hemorrhagic fevers in humans with high mortality rate. In recent years, increasing attention has been paid to this highly lethal virus due to sporadic outbreaks observed in various African nations. This bibliometric analysis endeavors to elucidate the trends, dynamics, and focal points of knowledge that have delineated the landscape of research concerning MARV. Methods Relevant literature on MARV from 1968 to 2023 was extracted from the Web of Science Core Collection database. Following this, the data underwent bibliometric analysis and visualization procedures utilizing online analysis platform, CiteSpace 6.2R6, and VOSviewer 1.6.20. Three different types of bibliometric indicators including quantitative indicator, qualitative indicators, and structural indicators were used to gauge a researcher's productivity, assess the quality of their work, and analyze publication relationships, respectively. Results MARV is mainly prevalent in Africa. And approximately 643 confirmed cases have been described in the literature to date, and mortality observed was 81.2 % in overall patients. A total of 1014 papers comprising 869 articles and 145 reviews were included. The annual publications showed an increasing growth pattern from 1968 to 2023 (R2 = 0.8838). The United States stands at the forefront of this discipline, having dedicated substantial financial and human resources to scientific inquiry. However, co-authorship analysis showed the international research collaboration needs to be further strengthened. Based on reference and keywords analysis, contemporary MARV research encompasses pivotal areas: primarily, prioritizing the creation of prophylactic vaccines to impede viral spread, and secondarily, exploring targeted antiviral strategies, including small-molecule antivirals or MARV-specific monoclonal antibodies. Additionally, a comprehensive grasp of viral transmission, transcription, and replication mechanisms remains a central focus in ongoing investigations. And future MARV studies are expected to focus on evaluating clinical trial safety and efficacy, developing inhibitors to contain viral spread, exploring vaccine immunogenicity, virus-host association studies, and elucidating the role of neutralizing antibodies in MARV treatment. Conclusion The present study offered comprehensive insights into the contemporary status and trajectories of MARV over the past decades. This enables researchers to discern novel collaborative prospects, institutional partnerships, emerging topics, and research forefronts within this domain.
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Affiliation(s)
- Yuanjun Lyu
- Department of Geriatric Respiratory and Sleep, The First Affiliated Hospital of Zhengzhou University Zhengzhou 450052, Henan, China
| | - Wanqing Li
- Department of Operating Room, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, Xiangyang, China
| | - Qiang Guo
- Department of Orthopaedics, Baodi Clinical College of Tianjin Medical University, Tianjin, China
| | - Haiyang Wu
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Clinical College of Neurology, Neurosurgery and Neurorehabilitation, Tianjin Medical University, Tianjin, China
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7
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Pastor Y, Reynard O, Iampietro M, Surenaud M, Picard F, El Jahrani N, Lefebvre C, Hammoudi A, Dupaty L, Brisebard É, Reynard S, Moureaux É, Moroso M, Durand S, Gonzalez C, Amurri L, Gallouët AS, Marlin R, Baize S, Chevillard E, Raoul H, Hocini H, Centlivre M, Thiébaut R, Horvat B, Godot V, Lévy Y, Cardinaud S. A vaccine targeting antigen-presenting cells through CD40 induces protective immunity against Nipah disease. Cell Rep Med 2024; 5:101467. [PMID: 38471503 PMCID: PMC10983108 DOI: 10.1016/j.xcrm.2024.101467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/23/2023] [Accepted: 02/16/2024] [Indexed: 03/14/2024]
Abstract
Nipah virus (NiV) has been recently ranked by the World Health Organization as being among the top eight emerging pathogens likely to cause major epidemics, whereas no therapeutics or vaccines have yet been approved. We report a method to deliver immunogenic epitopes from NiV through the targeting of the CD40 receptor of antigen-presenting cells by fusing a selected humanized anti-CD40 monoclonal antibody to the Nipah glycoprotein with conserved NiV fusion and nucleocapsid peptides. In the African green monkey model, CD40.NiV induces specific immunoglobulin A (IgA) and IgG as well as cross-neutralizing responses against circulating NiV strains and Hendra virus and T cell responses. Challenge experiments using a NiV-B strain demonstrate the high protective efficacy of the vaccine, with all vaccinated animals surviving and showing no significant clinical signs or virus replication, suggesting that the CD40.NiV vaccine conferred sterilizing immunity. Overall, results obtained with the CD40.NiV vaccine are highly promising in terms of the breadth and efficacy against NiV.
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Affiliation(s)
- Yadira Pastor
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Olivier Reynard
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France
| | - Mathieu Iampietro
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France
| | - Mathieu Surenaud
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Florence Picard
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Nora El Jahrani
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Cécile Lefebvre
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Adele Hammoudi
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Léa Dupaty
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | | | - Stéphanie Reynard
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France; Unité de Biologie des Infections Virales Emergentes, Institut Pasteur, Lyon, Université Paris Cité, Paris, France
| | | | - Marie Moroso
- Laboratoire P4 Inserm Jean Mérieux, Lyon, France
| | - Stéphanie Durand
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France
| | - Claudia Gonzalez
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France
| | - Lucia Amurri
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France
| | - Anne-Sophie Gallouët
- Université Paris-Saclay, Inserm, CEA, Immunologie des maladies virales, autoimmunes, hématologiques et bactériennes (IMVA-HB/IDMIT/UMR1184), Fontenay-aux-Roses, France
| | - Romain Marlin
- Université Paris-Saclay, Inserm, CEA, Immunologie des maladies virales, autoimmunes, hématologiques et bactériennes (IMVA-HB/IDMIT/UMR1184), Fontenay-aux-Roses, France
| | - Sylvain Baize
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France; Unité de Biologie des Infections Virales Emergentes, Institut Pasteur, Lyon, Université Paris Cité, Paris, France
| | | | - Hervé Raoul
- Laboratoire P4 Inserm Jean Mérieux, Lyon, France
| | - Hakim Hocini
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Mireille Centlivre
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Rodolphe Thiébaut
- Vaccine Research Institute (VRI), Créteil, France; University Bordeaux, Department of Public Health, INSERM Bordeaux Population Health Research Centre, Inria SISTM, Bordeaux, France; CHU Bordeaux, Department of Medical Information, Bordeaux, France
| | - Branka Horvat
- Centre International de Recherche en Infectiologie (CIRI), Université de Lyon, INSERM U1111, Ecole Normale Supérieure de Lyon, Université Lyon 1, CNRS UMR5308, Lyon, France
| | - Véronique Godot
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France
| | - Yves Lévy
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France; Assistance Publique-Hôpitaux de Paris, Groupe Henri-Mondor Albert-Chenevier, Service Immunologie Clinique, Créteil, France.
| | - Sylvain Cardinaud
- INSERM U955 - Équipe 16, Institut Mondor de Recherche Biomédicale (IMRB), Université Paris-Est Créteil (UPEC), Créteil, France; Vaccine Research Institute (VRI), Créteil, France.
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Huaman C, Clouse C, Rader M, Yan L, Bai S, Gunn BM, Amaya M, Laing ED, Broder CC, Schaefer BC. An in vivo BSL-2 model for henipavirus infection based on bioluminescence imaging of recombinant Cedar virus replication in mice. FRONTIERS IN CHEMICAL BIOLOGY 2024; 3:1363498. [PMID: 38770087 PMCID: PMC11105800 DOI: 10.3389/fchbi.2024.1363498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Henipaviruses are enveloped single-stranded, negative-sense RNA viruses of the paramyxovirus family. Two henipaviruses, Nipah virus and Hendra virus, cause a systemic respiratory and/or neurological disease in humans and ten additional species of mammals, with a high fatality rate. Because of their highly pathogenic nature, Nipah virus and Hendra virus are categorized as BSL-4 pathogens, which limits the number and scope of translational research studies on these important human pathogens. To begin to address this limitation, we are developing a BSL-2 model of authentic henipavirus infection in mice, using the non-pathogenic henipavirus, Cedar virus. Notably, wild-type mice are highly resistant to Hendra virus and Nipah virus infection. However, previous work has shown that mice lacking expression of the type I interferon receptor (IFNAR-KO mice) are susceptible to both viruses. Here, we show that luciferase-expressing recombinant Cedar virus (rCedV-luc) is also able to replicate and establish a transient infection in IFNAR-KO mice, but not in wild-type mice. Using longitudinal bioluminescence imaging (BLI) of luciferase expression, we detected rCedV-luc replication as early as 10 h post-infection. Viral replication peaks between days 1 and 3 post-infection, and declines to levels undetectable by BLI by 7 days post-infection. Immunohistochemistry is consistent with viral infection and replication in endothelial cells and other non-immune cell types within tissue parenchyma. Serology analyses demonstrate significant IgG responses to the Cedar virus surface glycoprotein with potent neutralizing activity in IFNAR-KO mice, whereas antibody responses in wild-type animals were non-significant. Overall, these data suggest that rCedV-luc infection of IFNAR-KO mice represents a viable platform for the study of in vivo henipavirus replication, anti-henipavirus host responses and henipavirus-directed therapeutics.
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Affiliation(s)
- Celeste Huaman
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Rockville, MD, USA
| | - Caitlyn Clouse
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Rockville, MD, USA
| | - Madeline Rader
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Rockville, MD, USA
| | - Lianying Yan
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Rockville, MD, USA
| | - Shuangyi Bai
- Paul G. Allen School of Global Health, College of Veterinary Medicine, Washington State University, Pullman WA 99164 USA
| | - Bronwyn M. Gunn
- Paul G. Allen School of Global Health, College of Veterinary Medicine, Washington State University, Pullman WA 99164 USA
| | - Moushimi Amaya
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
| | - Eric D. Laing
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
| | - Christopher C. Broder
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
| | - Brian C. Schaefer
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, USA
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9
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Byrne PO, Blade EG, Fisher BE, Ambrozak DR, Ramamohan AR, Graham BS, Loomis RJ, McLellan JS. Prefusion stabilization of the Hendra and Langya virus F proteins. J Virol 2024; 98:e0137223. [PMID: 38214525 PMCID: PMC10878279 DOI: 10.1128/jvi.01372-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/12/2023] [Indexed: 01/13/2024] Open
Abstract
Nipah virus (NiV) and Hendra virus (HeV) are pathogenic paramyxoviruses that cause mild-to-severe disease in humans. As members of the Henipavirus genus, NiV and HeV use an attachment (G) glycoprotein and a class I fusion (F) glycoprotein to invade host cells. The F protein rearranges from a metastable prefusion form to an extended postfusion form to facilitate host cell entry. Prefusion NiV F elicits higher neutralizing antibody titers than postfusion NiV F, indicating that stabilization of prefusion F may aid vaccine development. A combination of amino acid substitutions (L104C/I114C, L172F, and S191P) is known to stabilize NiV F in its prefusion conformation, although the extent to which substitutions transfer to other henipavirus F proteins is not known. Here, we perform biophysical and structural studies to investigate the mechanism of prefusion stabilization in F proteins from three henipaviruses: NiV, HeV, and Langya virus (LayV). Three known stabilizing substitutions from NiV F transfer to HeV F and exert similar structural and functional effects. One engineered disulfide bond, located near the fusion peptide, is sufficient to stabilize the prefusion conformations of both HeV F and LayV F. Although LayV F shares low overall sequence identity with NiV F and HeV F, the region around the fusion peptide exhibits high sequence conservation across all henipaviruses. Our findings indicate that substitutions targeting this site of conformational change might be applicable to prefusion stabilization of other henipavirus F proteins and support the use of NiV as a prototypical pathogen for henipavirus vaccine antigen design.IMPORTANCEPathogenic henipaviruses such as Nipah virus (NiV) and Hendra virus (HeV) cause respiratory symptoms, with severe cases resulting in encephalitis, seizures, and coma. The work described here shows that the NiV and HeV fusion (F) proteins share common structural features with the F protein from an emerging henipavirus, Langya virus (LayV). Sequence alignment alone was sufficient to predict which known prefusion-stabilizing amino acid substitutions from NiV F would stabilize the prefusion conformations of HeV F and LayV F. This work also reveals an unexpected oligomeric interface shared by prefusion HeV F and NiV F. Together, these advances lay a foundation for future antigen design targeting henipavirus F proteins. In this way, Nipah virus can serve as a prototypical pathogen for the development of protective vaccines and monoclonal antibodies to prepare for potential henipavirus outbreaks.
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Affiliation(s)
- Patrick O. Byrne
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Elizabeth G. Blade
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | - Brian E. Fisher
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - David R. Ambrozak
- Immunology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Ajit R. Ramamohan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
| | | | - Rebecca J. Loomis
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Jason S. McLellan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas, USA
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10
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Ebogo-Belobo JT, Sadeuh-Mba SA, Chavely GM, Groschup MH, Mbacham WF, Njouom R. First detection of Rift Valley fever virus antibodies in non-human primates in Cameroon. J Med Primatol 2024; 53:e12687. [PMID: 38083993 DOI: 10.1111/jmp.12687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 11/13/2023] [Accepted: 12/01/2023] [Indexed: 02/13/2024]
Abstract
We tested for Rift Valley fever virus (RVFV) from at least 15 species of non-human primates. RVFV IgG/IgM antibodies were detected in 3.7% (2 out of 53) of chimpanzees (Pan troglodytes) and in 1.4% (1 out of 72) of unidentified non-human primate species. This study was the first investigation of RVFV in monkeys in Cameroon.
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Affiliation(s)
- Jean Thierry Ebogo-Belobo
- Department of Virology, Centre Pasteur of Cameroon, Yaoundé, Cameroon
- Centre for Research on Health and Priority Pathologies, Institute of Medical Research and Medicinal Plants Studies, Yaoundé, Cameroon
- Department of Biochemistry, Faculty of Science, The University of Yaoundé I, Yaoundé, Cameroon
| | | | | | - Martin H Groschup
- Institute of Novel and Emerging Infectious Diseases, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Wilfred Fon Mbacham
- Department of Biochemistry, Faculty of Science, The University of Yaoundé I, Yaoundé, Cameroon
| | - Richard Njouom
- Department of Virology, Centre Pasteur of Cameroon, Yaoundé, Cameroon
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11
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Zhou YR. HIV/AIDS, SARS, and COVID-19: the trajectory of China's pandemic responses and its changing politics in a contested world. Global Health 2024; 20:1. [PMID: 38167039 PMCID: PMC10759387 DOI: 10.1186/s12992-023-01011-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024] Open
Abstract
The COVID-19 pandemic has revealed the contested politics of global health governance, though we still don't know enough about the dynamics of domestic pandemic responses, or about the relationship between the politics of those responses and the politics of global health governance, both of which have changed significantly in recent decades. Focusing on three cases (HIV/AIDS, SARS, and COVID-19) of cross-border infectious diseases, this article explores the trajectory of China's pandemic responses in the context of globalization. Attending to changing politics at domestic, international, and global levels, I argue that those responses have been a complex combination of China's domestic politics (e.g., priorities, institutions, leadership, and timing), its international relations (especially with the US), and its engagements with global health governance. It is concluded that the increasing divergence of pandemic responses in a time of ubiquitous global health crisis demands urgent attention to the connections (including contestations) between domestic pandemic responses and the evolvement of global health governance from a broader perspective that considers changes in geopolitics.
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Affiliation(s)
- Yanqiu Rachel Zhou
- Department of Health, Aging & Society, McMaster University, 1280 Main Street West, L8S 4M4, Hamilton, ON, Canada.
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12
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Elisha IL, Onikisateinba A, Joel GS, Luka PD, Joshua BI, Jagab SH, Ahmed R, Haliru H, Abubakar SA, Makama S, Sati NS, Muhammad M. Unveiling the global reach of African anthrax research: A bibliometric study. SCIENCE IN ONE HEALTH 2023; 3:100052. [PMID: 39077387 PMCID: PMC11262261 DOI: 10.1016/j.soh.2023.100052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/10/2023] [Indexed: 07/31/2024]
Abstract
Anthrax is a zoonotic bacterial disease caused by Bacillus anthracis. It poses significant threat to humans through contact with infected animals or their by-products. Concerns arise from its long-lasting spore viability and lethality, fuelling its biowarfare potential. Recent anthrax outbreaks across multiple African nations prompted this bibliometric study. The aim of the study was to assess the contributions of African countries, institutions, authors, research funding, and collaborations, while identifying research trends and gaps. We conducted an extensive bibliometric analysis of anthrax-related research publications in Africa from 1923 to 2023, utilizing the Scopus database and VOSviewer. The study covered 364 publications from 32 African countries, accumulating 5,636 citations at an average of 15.5 citations per article, with research articles comprising 88.5% of the corpus. The publication growth rate from 1923 to 2023 was modest at 8.3%, indicating gradual advancement. Notably, there was a significant surge in publications between 2011 and 2023, accounting for 73.1% of total publications. The African research contributions, were categorized into five thematic focuses: ecological dynamics and host interactions, human-livestock anthrax interface, molecular insights into bacterial activity and treatment strategies, collaborative approaches for zoonotic disease prevention, and antibody response and vaccination strategies. Leading institutional contributors included the University of Pretoria and the University of KwaZulu-Natal. Collaborations extended globally to 35 non-African countries, with significant involvement from the United States, United Kingdom, and Germany. Strong African partnerships, especially between Kenya, Nigeria, and South Africa, emerged. The top 10 cited papers explored diverse aspects, including disease impact on wildlife and innovative control strategies, underscoring the importance of multidisciplinary approaches. South Africa played a prominent role, contributing 95 publications and securing funding from various sources, including the National Research Foundation. Collaborations with global institutions highlighted its commitment. This study unveils the dynamic landscape of anthrax research in Africa, emphasizing the pivotal role of collaboration, multidisciplinary One Health approaches, and global partnerships in enhancing research outcomes. Ongoing research and practical solutions for human and animal health remain imperative.
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Affiliation(s)
- Ishaku Leo Elisha
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Arieri Onikisateinba
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Ganih Saidu Joel
- State Key Laboratory for Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Science, China
| | - Pam Dachung Luka
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Barde Israel Joshua
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Shuaibu Hafsat Jagab
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Rabi Ahmed
- Department of Biosecurity, National Biosafety Management Agency, Abuja, Nigeria
| | - Habibu Haliru
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Sa’adatu Aliyu Abubakar
- National Reference Laboratory, Nigeria Centre for Disease Control and Prevention, Abuja, Nigeria
| | - Sunday Makama
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Ngulukun Samuel Sati
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
| | - Maryam Muhammad
- National Veterinary Research Institute Vom, P.M.B. 01 Vom, Plateau State, Nigeria
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Zyoud S’H, Shakhshir M, Abushanab AS, Koni A, Hamdallah M, Al-Jabi SW. Mapping the knowledge structure of a gluten-free diet: a global perspective. TRANSLATIONAL MEDICINE COMMUNICATIONS 2023; 8:18. [DOI: 10.1186/s41231-023-00152-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/30/2023] [Indexed: 12/01/2023]
Abstract
Abstract
Background
A gluten-free diet (GFD) has become one of the most popular eating plans and is essential for managing gluten-related medical conditions, signs, and symptoms. Therefore, we performed a bibliometric analysis of the scientific literature on the GFD to describe the research landscape.
Methods
The Scopus database was searched for publications on the GFD from 1952 to 2021. A bibliometric analysis of the data was performed. VOSviewer software was used to perform visualization analysis, co-occurrence analysis, and publication trends in GFD.
Results
A total of 3,258 publications were retrieved. In terms of publications, Italy (n = 468, 14.36%) led in the number of publications, followed by the USA (n = 398, 12.22%) and Spain (n = 274, 8.41%). The retrieved documents earned an average of 22.89 citations per document, for a total of 74,560 citations. Since 2001, there has been a gradual growth in the number of articles published, going from 23 to more than 370 in 2021. Using the mapping terms in the title/abstract a minimum of 50 times, 291 terms were divided into two main clusters: ‘adherence to a gluten-free diet in celiac disease’ and ‘improvement of the nutritional and sensory quality of gluten-free products.’
Conclusions
Over the past six decades, there has been a growing need for gluten-free bakery products and a noticeable increase in related publications. This study indicates that the “improvement of the nutritional and sensory quality of gluten-free products” will remain a hotspot in this research field for upcoming years.
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Abdel-Megied AM, Monreal IA, Zhao L, Apffel A, Aguilar HC, Jones JW. Characterization of the cellular lipid composition during SARS-CoV-2 infection. Anal Bioanal Chem 2023; 415:5269-5279. [PMID: 37438564 PMCID: PMC10981079 DOI: 10.1007/s00216-023-04825-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 07/14/2023]
Abstract
Emerging and re-emerging zoonotic viral diseases continue to significantly impact public health. Of particular interest are enveloped viruses (e.g., SARS-CoV-2, the causative pathogen of COVID-19), which include emerging pathogens of highest concern. Enveloped viruses contain a viral envelope that encapsulates the genetic material and nucleocapsid, providing structural protection and functional bioactivity. The viral envelope is composed of a coordinated network of glycoproteins and lipids. The lipid composition of the envelope consists of lipids preferentially appropriated from host cell membranes. Subsequently, changes to the host cell lipid metabolism and an accounting of what lipids are changed during viral infection provide an opportunity to fingerprint the host cell's response to the infecting virus. To address this issue, we comprehensively characterized the lipid composition of VeroE6-TMPRSS2 cells infected with SARS-CoV-2. Our approach involved using an innovative solid-phase extraction technique to efficiently extract cellular lipids combined with liquid chromatography coupled to high-resolution tandem mass spectrometry. We identified lipid changes in cells exposed to SARS-CoV-2, of which the ceramide to sphingomyelin ratio was most prominent. The identification of a lipid profile (i.e., lipid fingerprint) that is characteristic of cellular SARS-CoV-2 infection lays the foundation for targeting lipid metabolism pathways to further understand how enveloped viruses infect cells, identifying opportunities to aid antiviral and vaccine development.
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Affiliation(s)
- Ahmed M Abdel-Megied
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 N. Pine Street, Room N721, Baltimore, MD, 21201, USA
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Kafr El-Sheikh University, Kafr El-Sheikh City, Egypt
| | - Isaac A Monreal
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | | | | | - Hector C Aguilar
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, 14853, USA
| | - Jace W Jones
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 N. Pine Street, Room N721, Baltimore, MD, 21201, USA.
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15
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Li H, Kim JYV, Pickering BS. Henipavirus zoonosis: outbreaks, animal hosts and potential new emergence. Front Microbiol 2023; 14:1167085. [PMID: 37529329 PMCID: PMC10387552 DOI: 10.3389/fmicb.2023.1167085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/26/2023] [Indexed: 08/03/2023] Open
Abstract
Hendra virus (HeV) and Nipah virus (NiV) are biosafety level 4 zoonotic pathogens causing severe and often fatal neurological and respiratory disease. These agents have been recognized by the World Health Organization as top priority pathogens expected to result in severe future outbreaks. HeV has caused sporadic infections in horses and a small number of human cases in Australia since 1994. The NiV Malaysia genotype (NiV-M) was responsible for the 1998-1999 epizootic outbreak in pigs with spillover to humans in Malaysia and Singapore. Since 2001, the NiV Bangladesh genotype (NiV-B) has been the predominant strain leading to outbreaks almost every year in Bangladesh and India, with hundreds of infections in humans. The natural reservoir hosts of HeV and NiV are fruit bats, which carry the viruses without clinical manifestation. The transmission pathways of henipaviruses from bats to humans remain poorly understood. Transmissions are often bridged by an intermediate animal host, which amplifies and spreads the viruses to humans. Horses and pigs are known intermediate hosts for the HeV outbreaks in Australia and NiV-M epidemic in Malaysia and Singapore, respectively. During the NiV-B outbreaks in Bangladesh, following initial spillover thought to be through the consumption of date palm sap, the spread of infection was largely human-to-human transmission. Spillover of NiV-B in recent outbreaks in India is less understood, with the primary route of transmission from bat reservoir to the initial human infection case(s) unknown and no intermediate host established. This review aims to provide a concise update on the epidemiology of henipaviruses covering their previous and current outbreaks with emphasis on the known and potential role of livestock as intermediate hosts in disease transmission. Also included is an up-to-date summary of newly emerging henipa-like viruses and animal hosts. In these contexts we discuss knowledge gaps and new challenges in the field and propose potential future directions.
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Affiliation(s)
- Hongzhao Li
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
| | - Ji-Young V. Kim
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
| | - Bradley S. Pickering
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
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16
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Li H, Smith G, Goolia M, Marszal P, Pickering BS. Comparative characterization of Crimean-Congo hemorrhagic fever virus cell culture systems with application to propagation and titration methods. Virol J 2023; 20:128. [PMID: 37337294 DOI: 10.1186/s12985-023-02089-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 06/02/2023] [Indexed: 06/21/2023] Open
Abstract
Crimean-Congo hemorrhagic fever orthonairovirus (CCHFV) is a biosafety level 4 and World Health Organization top priority pathogen. Infection leads to an often fatal hemorrhagic fever disease in humans. The tick-borne virus is endemic in countries across Asia, Europe and Africa, with signs of spreading into new regions. Despite the severity of disease and the potential of CCHFV geographic expansion to cause widespread outbreaks, no approved vaccine or treatment is currently available. Critical for basic research and the development of diagnostics or medical countermeasures, CCHFV viral stocks are commonly produced in Vero E6 and SW-13 cell lines. While a variety of in-house methods are being used across different laboratories, there has been no clear, specific consensus on a standard, optimal system for CCHFV growth and titration. In this study, we perform a systematic, side-by-side characterization of Vero E6 and SW-13 cell lines concerning the replication kinetics of CCHFV under different culture conditions. SW-13 cells are typically cultured in a CO2-free condition (SW-13 CO2-) according to the American Type Culture Collection. However, we identify a CO2-compatible culture condition (SW-13 CO2+) that demonstrates the highest viral load (RNA concentration) and titer (infectious virus concentration) in the culture supernatants, in comparison to SW-13 CO2- and Vero E6 cultures. This optimal viral propagation system also leads to the development of two titration methods: an immunostaining-based plaque assay using a commercial CCHFV antibody and a colorimetric readout, and an antibody staining-free, cytopathic effect-based median tissue culture infectious dose assay using a simple excel calculator. These are anticipated to serve as a basis for a reproducible, standardized and user-friendly platform for CCHFV propagation and titration.
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Affiliation(s)
- Hongzhao Li
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
| | - Greg Smith
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
| | - Melissa Goolia
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
| | - Peter Marszal
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada
| | - Bradley S Pickering
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, MB, Canada.
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
- Department of Veterinary Microbiology and Preventive Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA, USA.
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17
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Ferreira GF, Demarzo M. Trends of Research on Mindfulness: a Bibliometric Study of an Emerging Field. TRENDS IN PSYCHOLOGY 2023. [DOI: 10.1007/s43076-023-00286-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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18
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Byrne PO, Fisher BE, Ambrozak DR, Blade EG, Tsybovsky Y, Graham BS, McLellan JS, Loomis RJ. Structural basis for antibody recognition of vulnerable epitopes on Nipah virus F protein. Nat Commun 2023; 14:1494. [PMID: 36932063 PMCID: PMC10021056 DOI: 10.1038/s41467-023-36995-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 02/27/2023] [Indexed: 03/19/2023] Open
Abstract
Nipah virus (NiV) is a pathogenic paramyxovirus that causes fatal encephalitis in humans. Two envelope glycoproteins, the attachment protein (G/RBP) and fusion protein (F), facilitate entry into host cells. Due to its vital role, NiV F presents an attractive target for developing vaccines and therapeutics. Several neutralization-sensitive epitopes on the NiV F apex have been described, however the antigenicity of most of the F protein's surface remains uncharacterized. Here, we immunize mice with prefusion-stabilized NiV F and isolate ten monoclonal antibodies that neutralize pseudotyped virus. Cryo-electron microscopy reveals eight neutralization-sensitive epitopes on NiV F, four of which have not previously been described. Novel sites span the lateral and basal faces of NiV F, expanding the known library of vulnerable epitopes. Seven of ten antibodies bind the Hendra virus (HeV) F protein. Multiple sequence alignment suggests that some of these newly identified neutralizing antibodies may also bind F proteins across the Henipavirus genus. This work identifies new epitopes as targets for therapeutics, provides a molecular basis for NiV neutralization, and lays a foundation for development of new cross-reactive antibodies targeting Henipavirus F proteins.
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Affiliation(s)
- Patrick O Byrne
- Department of Molecular Biosciences, The University of Texas at Austin, 78712, Austin, TX, USA
| | - Brian E Fisher
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 20892, Bethesda, MD, USA
| | - David R Ambrozak
- Immunology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 20892, Bethesda, MD, USA
| | - Elizabeth G Blade
- Department of Molecular Biosciences, The University of Texas at Austin, 78712, Austin, TX, USA
| | - Yaroslav Tsybovsky
- Vaccine Research Center Electron Microscopy Unit, Cancer Research Technology Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, 21701, Frederick, MD, USA
| | - Barney S Graham
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 20892, Bethesda, MD, USA
- Morehouse School of Medicine, 30310, Atlanta, GA, USA
| | - Jason S McLellan
- Department of Molecular Biosciences, The University of Texas at Austin, 78712, Austin, TX, USA.
| | - Rebecca J Loomis
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, 20892, Bethesda, MD, USA.
- GSK Global Health R&D Vaccines (GVGH), 53100, Siena, Italy.
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Di Fabio JL, Delgado García B. [One hundred years of the Pan American Journal of Public Health: visualizing its contentCem anos da Revista Pan-Americana de Saúde Pública: visualização do seu conteúdo]. Rev Panam Salud Publica 2023; 47:e20. [PMID: 37114166 PMCID: PMC10128885 DOI: 10.26633/rpsp.2023.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/12/2022] [Indexed: 04/29/2023] Open
Abstract
Objectives Explore how the content of the articles published by the Pan American Journal of Public Health during its 100 years of existence has aligned with the key health issues of the Pan American Health Organization (PAHO). Methods A bibliometric analysis was carried out, with visualization of its results. Information on articles published in the Journal was retrieved from PAHO's Institutional Repository for Information Sharing (IRIS) for the first 75 years and Scopus for the last 25 years, until February 2022; References to Governing Bodies documents and statements by the directors were used to establish PAHO's key themes. Results Initially, 12 573 publications were obtained and 9 289 were considered for analysis for the period 1922 to 1996, and 3 208 for the period 1997 to 2022. For the bibliometric analysis of the Scopus information, indicators such as the authors and their origin, language of publication, and number and origin of citations were considered. For the visualizations, publications were divided into five periods so that they coincided with the periods established for the analysis of PAHO's priority themes. Keyword co-occurrence maps were made to observe the evolution of published topics and relate them to public health approaches in each period. Conclusion The topics published in the Pan American Journal of Public Health and its precursor bulletins reflect the history of regional public health and its evolution over time, as well as the key health issues of the Pan American Health Organization.
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Affiliation(s)
- José Luis Di Fabio
- Consultor independienteWashington D.C.Estados Unidos de AméricaConsultor independiente, Washington D.C., Estados Unidos de América
- José Luis Di Fabio,
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Development of humanised antibodies for Crimean-Congo Haemorrhagic fever virus: Comparison of hybridoma-based versus phage library techniques. J Immunol Methods 2023; 512:113405. [PMID: 36496007 DOI: 10.1016/j.jim.2022.113405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Humanised antibodies targeting Crimean-Congo Haemorrhagic virus (CCHFV) are needed for the development and standardisation of serological assays. These assays are needed to address a shortfall in available tests that meet regulatory diagnostic standards and to aid surveillance activities to extend knowledge on the distribution of CCHFV. To generate a humanised monoclonal antibody against CCHFV, we have compared two methods: the traditional mouse hybridoma approach with subsequent sequencing and humanisation of antibodies versus a non-animal alternative using a human combinatorial antibody library (HuCAL). Our results demonstrated that the mouse hybridoma followed by humanisation protocol gave higher affinity antibodies. Whilst not yet able to demonstrate the generation of equivalent humanised antibodies without the use of animals, sequencing data enables the subsequent production of recombinant antibodies, thus providing a reduction in future animal usage for this application. Ultimately, our report provides information on development of a humanised standardised control, which can form an important positive control component of serological assays against CCHFV.
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Chen X, Xiao H, Zhao Q, Xu X, Cen Y, Xiao D. Research hotspot and trend of microneedles in biomedical field: A bibliometric analysis from 2011 to 2020. Burns 2022; 48:959-972. [PMID: 35504768 DOI: 10.1016/j.burns.2022.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 04/12/2022] [Accepted: 04/15/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Microneedles composed of arrays of micro-sized needles assembled on a patch, has attracted increasing interest in transdermal drug delivery due to its ease of use and lack of painful responses. Here, a bibliometric analysis was conducted to determine a hotspot and trend of microneedles in the biomedical field. METHODS All relevant articles about microneedles between 2011 and 2020 were obtained from the databases of Web of Science (WOS) and PubMed of the National Center for Biotechnology Information (NCBI). A series of software such as VOSviwewer, the online bibliometric analysis website, CiteSpace, BICOMB and gCLUTO were used to process the data and get visual images. Processed data and visualized images were conducted to predict the trend of this research field. RESULTS The number of articles published over the last decade had increased rapidly (37 in 2011, 165 in 2020), the Journal of Controlled Release was the most productive journal in microneedle studies. The United States was the most productive country, while the Queens Univ Belfast topped the other institutions. Ryan F Donnelly was the most productive author in the field, while the two most cited articles were published by Gu Zhen group. More importantly, the research trend of microneedles had ranged from physicochemical properties and pharmacokinetics to insulin transdermal injection and vaccine development over the past decade. The four hot spots in microneedle studies, including skin rejuvenation, vaccines, fabrication technology and insulin delivery, were identified. Microneedle vaccination shows promising application prospects, and polymers are considered as the most promising materials for microneedles manufacturing. CONCLUSIONS This study will help researchers understand the hot spots and trends of microneedles in the biomedical field accurately and quickly. Moreover, the exploitation of novel polymeric microneedles will be a solid direction for subsequent research and development of transdermal drug delivery.
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Affiliation(s)
- Xinghan Chen
- Department of Burns and Plastic Surgery, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China; Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Haitao Xiao
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Qiao Zhao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Xuewen Xu
- Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Ying Cen
- Department of Burns and Plastic Surgery, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China; Department of Burns and Plastic Surgery, West China Hospital Sichuan University, Chengdu, Sichuan, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, China.
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22
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Kaya E, Üçer H. Tularemia research activity: a bibliometric analysis between 1980 and 2020. Infection 2022; 50:1507-1515. [PMID: 35507235 DOI: 10.1007/s15010-022-01837-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/14/2022] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Tularemia disease attracts attention as an important contagious zoonosis that has increased its impact in recent years. The aim of the study is to analyze the publications on tularemia between 1980 and 2020. METHODS We performed literature retrieval in the Web of Science (WoS) on 22 September 2021. Search terms were "Francisella tularensis" and "Tularemia" in the article title for the period between January 1980 and December 2020. We determined the number of articles, keywords, countries, authors, and institutions for each publication. We visualized the data with the VOS viewer tool. RESULTS After all inclusion and exclusion criteria were applied finally, 1688 articles were analyzed. The number of articles has increased in recent years. The three most productive countries in tularemia were the USA (777 articles 46.03%), Sweden (113 articles 6.69%), and Turkey (95 articles, 5.63%). Most of the articles were from the journal of Infection and Immunity (II), Plos one, Journal of Clinical Microbiology (JCM), Emerging Infectious Diseases (EID), and Vaccine. Sjostedt A. and Umea University-Sweden were the most influential author and institution. CONCLUSIONS Productivity trend has been shown to increase in tularemia. High-income countries had a great influence on the literature in the field. Publications from the USA were in a high percentage among all articles. Related work may lead to the future direction of this dossier in the next years.
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Affiliation(s)
- Erhan Kaya
- Faculty of Medicine, Department of Public Health, Kahramanmaras Sutcu Imam University, Kahramanmaras city, Turkey.
| | - Hüseyin Üçer
- Department of Family Medicine, Public Health Directorate of Kahramanmaraş, Kahramanmaraş city, Turkey
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23
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Ndondo AP, Eley B, Wilmshurst JM, Kakooza-Mwesige A, Giannoccaro MP, Willison HJ, Cruz PMR, Heckmann JM, Bateman K, Vincent A. Post-Infectious Autoimmunity in the Central (CNS) and Peripheral (PNS) Nervous Systems: An African Perspective. Front Immunol 2022; 13:833548. [PMID: 35356001 PMCID: PMC8959857 DOI: 10.3389/fimmu.2022.833548] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/10/2022] [Indexed: 11/13/2022] Open
Abstract
The direct impact and sequelae of infections in children and adults result in significant morbidity and mortality especially when they involve the central (CNS) or peripheral nervous system (PNS). The historical understanding of the pathophysiology has been mostly focused on the direct impact of the various pathogens through neural tissue invasion. However, with the better understanding of neuroimmunology, there is a rapidly growing realization of the contribution of the innate and adaptive host immune responses in the pathogenesis of many CNS and PNS diseases. The balance between the protective and pathologic sequelae of immunity is fragile and can easily be tipped towards harm for the host. The matter of immune privilege and surveillance of the CNS/PNS compartments and the role of the blood-brain barrier (BBB) and blood nerve barrier (BNB) makes this even more complex. Our understanding of the pathogenesis of many post-infectious manifestations of various microbial agents remains elusive, especially in the diverse African setting. Our exploration and better understanding of the neuroimmunology of some of the infectious diseases that we encounter in the continent will go a long way into helping us to improve their management and therefore lessen the burden. Africa is diverse and uniquely poised because of the mix of the classic, well described, autoimmune disease entities and the specifically "tropical" conditions. This review explores the current understanding of some of the para- and post-infectious autoimmune manifestations of CNS and PNS diseases in the African context. We highlight the clinical presentations, diagnosis and treatment of these neurological disorders and underscore the knowledge gaps and perspectives for future research using disease models of conditions that we see in the continent, some of which are not uniquely African and, where relevant, include discussion of the proposed mechanisms underlying pathogen-induced autoimmunity. This review covers the following conditions as models and highlight those in which a relationship with COVID-19 infection has been reported: a) Acute Necrotizing Encephalopathy; b) Measles-associated encephalopathies; c) Human Immunodeficiency Virus (HIV) neuroimmune disorders, and particularly the difficulties associated with classical post-infectious autoimmune disorders such as the Guillain-Barré syndrome in the context of HIV and other infections. Finally, we describe NMDA-R encephalitis, which can be post-HSV encephalitis, summarise other antibody-mediated CNS diseases and describe myasthenia gravis as the classic antibody-mediated disease but with special features in Africa.
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Affiliation(s)
- Alvin Pumelele Ndondo
- Department of Paediatric Neurology, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa
| | - Brian Eley
- Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa.,Paediatric Infectious Diseases Unit, Red Cross War Memorial Children's Hospital, Cape Town, South Africa
| | - Jo Madeleine Wilmshurst
- Department of Paediatrics and Child Health, Red Cross War Memorial Children's Hospital, University of Cape Town, Cape Town, South Africa.,Department of Paediatric Neurology, Neuroscience Institute, University of Cape Town, Cape Town, South Africa
| | - Angelina Kakooza-Mwesige
- Department of Pediatrics and Child Health, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Maria Pia Giannoccaro
- Laboratory of Neuromuscular Pathology and Neuroimmunology, Istituto di Ricovero e Cura a CarattereScientifico (IRCCS) Instiuto delle Scienze Neurologiche di Bologna, UOC Clinica Neurologica Bologna, Bologna, Italy.,Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Hugh J Willison
- Institute of Infection, Immunity and Inflammation (3I), University of Glasgow, Glasgow, United Kingdom
| | - Pedro M Rodríguez Cruz
- Centro Nacional de Analisis Genomico - Centre for Genomic Regulation (CNAG-CRG ), Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain.,Department of Neuromuscular Disease, University College London (UCL) Queen Square Institute of Neurology, London, United Kingdom.,Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop, Dakar, Senegal
| | - Jeannine M Heckmann
- Neurology Division, Department of Medicine, Groote Schuur Hospital, Cape Town, South Africa.,The University of Cape Town (UCT) Neurosciences Institute, University of Cape Town, Cape Town, South Africa
| | - Kathleen Bateman
- Neurology Division, Department of Medicine, Groote Schuur Hospital, Cape Town, South Africa
| | - Angela Vincent
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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24
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Chen Y, Chen S, Ma B, Duan Z, Yang J, Wang Y, Zhang X, Huang Y, Zhang Y, Deng C, Lu Q, Wang Y, Zhao Y. Global analysis of the COVID-19 research landscape and scientific impact. Am J Infect Control 2022; 50:446-453. [PMID: 34986389 PMCID: PMC8720495 DOI: 10.1016/j.ajic.2021.12.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/24/2021] [Accepted: 12/27/2021] [Indexed: 12/24/2022]
Abstract
Objectives To consider a 1-year time window of the coronavirus disease 2019 (COVID-19) crisis to integrate qualitative and quantitative data and provide an in-depth analysis of all COVID-19 publications from geographical, epidemiological and chronological perspectives. Methods Publications on COVID-19 from December 1, 2019, to December 31, 2020 without document type limitations were extracted from the Web of Science database. Microsoft Excel 2016, GraphPad Prism 9, VOSviewer 1.6.15 and IBM SPSS 21.0 were used to analyze the global epidemiological publication landscape and its correlations, research hotspots around the world and the top 5 countries in terms of publications. Results A total of 51,317 documents were analyzed in the present study. The publication trend could be divided into an increasing output stage and an explosive output stage. There were positive correlations between monthly publications, confirmed cases and deaths. Research hotspots from the whole year, from individual quarters, and from the top 5 countries with the most publications were further identified. Conclusions The correlation analysis of publications indicated that confirmed cases and deaths were forces driving the scientific output, reflecting the growing trend to some extent. Moreover, the hotspot analysis provided valuable information for scientists, funders, policy and decision-makers to determine what areas should be their focus when faced with public health emergencies in the future.
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25
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Li H, Bello A, Smith G, Kielich DMS, Strong JE, Pickering BS. Degenerate sequence-based CRISPR diagnostic for Crimean-Congo hemorrhagic fever virus. PLoS Negl Trop Dis 2022; 16:e0010285. [PMID: 35271569 PMCID: PMC8939784 DOI: 10.1371/journal.pntd.0010285] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 03/22/2022] [Accepted: 02/27/2022] [Indexed: 11/19/2022] Open
Abstract
CRISPR (clustered regularly interspaced short palindromic repeats), an ancient defense mechanism used by prokaryotes to cleave nucleic acids from invading viruses and plasmids, is currently being harnessed by researchers worldwide to develop new point-of-need diagnostics. In CRISPR diagnostics, a CRISPR RNA (crRNA) containing a "spacer" sequence that specifically complements with the target nucleic acid sequence guides the activation of a CRISPR effector protein (Cas13a, Cas12a or Cas12b), leading to collateral cleavage of RNA or DNA reporters and enormous signal amplification. CRISPR function can be disrupted by some types of sequence mismatches between the spacer and target, according to previous studies. This poses a potential challenge in the detection of variable targets such as RNA viruses with a high degree of sequence diversity, since mismatches can result from target variations. To cover viral diversity, we propose in this study that during crRNA synthesis mixed nucleotide types (degenerate sequences) can be introduced into the spacer sequence positions corresponding to viral sequence variations. We test this crRNA design strategy in the context of the Cas13a-based SHERLOCK (specific high-sensitivity enzymatic reporter unlocking) technology for detection of Crimean-Congo hemorrhagic fever virus (CCHFV), a biosafety level 4 pathogen with wide geographic distribution and broad sequence variability. The degenerate-sequence CRISPR diagnostic proves functional, sensitive, specific and rapid. It detects within 30-40 minutes 1 copy/μl of viral RNA from CCHFV strains representing all clades, and from more recently identified strains with new mutations in the CRISPR target region. Also importantly, it shows no cross-reactivity with a variety of CCHFV-related viruses. This proof-of-concept study demonstrates that the degenerate sequence-based CRISPR diagnostic is a promising tool of choice for effective detection of highly variable viral pathogens.
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Affiliation(s)
- Hongzhao Li
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Alexander Bello
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Greg Smith
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
| | - Dominic M. S. Kielich
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - James E. Strong
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
- Department of Pediatrics & Child Health, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Bradley S. Pickering
- National Centre for Foreign Animal Disease, Canadian Food Inspection Agency, Winnipeg, Canada
- Department of Medical Microbiology and Infectious Diseases, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
- Iowa State University, College of Veterinary Medicine, Department of Veterinary Microbiology and Preventive Medicine, Ames, Iowa, United States of America
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26
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Jia K, Wang P, Li Y, Chen Z, Jiang X, Lin CL, Chin T. Research Landscape of Artificial Intelligence and e-Learning: A Bibliometric Research. Front Psychol 2022; 13:795039. [PMID: 35250730 PMCID: PMC8889112 DOI: 10.3389/fpsyg.2022.795039] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/17/2022] [Indexed: 12/12/2022] Open
Abstract
While an increasing number of organizations have introduced artificial intelligence as an important facilitating tool for learning online, the application of artificial intelligence in e-learning has become a hot topic for research in recent years. Over the past few decades, the importance of online learning has also been a concern in many fields, such as technological education, STEAM, AR/VR apps, online learning, amongst others. To effectively explore research trends in this area, the current state of online learning should be understood. Systematic bibliometric analysis can address this problem by providing information on publishing trends and their relevance in various topics. In this study, the literary application of artificial intelligence combined with online learning from 2010 to 2021 was analyzed. In total, 64 articles were collected to analyze the most productive countries, universities, authors, journals and publications in the field of artificial intelligence combined with online learning using VOSviewer through WOS data collection. In addition, the mapping of co-citation and co-occurrence was explored by analyzing a knowledge map. The main objective of this study is to provide an overview of the trends and pathways in artificial intelligence and online learning to help researchers understand global trends and future research directions.
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Affiliation(s)
- Kan Jia
- School of Management, Zhejiang University of Technology, Hangzhou, China
| | - Penghui Wang
- School of Management, Zhejiang University of Technology, Hangzhou, China
| | - Yang Li
- School of Cultural Creativity and Management, Communication University of Zhejiang, Hangzhou, China
| | - Zezhou Chen
- School of Economics, Zhejiang University of Technology, Hangzhou, China
| | - Xinyue Jiang
- School of Economics, Zhejiang University of Technology, Hangzhou, China
| | - Chien-Liang Lin
- College of Science and Technology Ningbo University, Ningbo, China
| | - Tachia Chin
- School of Management, Zhejiang University of Technology, Hangzhou, China
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27
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WWOX-Mediated Degradation of AMOTp130 Negatively Affects Egress of Filovirus VP40 VLPs. J Virol 2022; 96:e0202621. [PMID: 35107375 DOI: 10.1128/jvi.02026-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ebola (EBOV) and Marburg (MARV) viruses continue to emerge and cause severe hemorrhagic disease in humans. A comprehensive understanding of the filovirus-host interplay will be crucial for identifying and developing antiviral strategies. The filoviral VP40 matrix protein drives virion assembly and egress, in part by recruiting specific WW-domain-containing host interactors via its conserved PPxY Late (L) domain motif to positively regulate virus egress and spread. In contrast to these positive regulators of virus budding, a growing list of WW-domain-containing interactors that negatively regulate virus egress and spread have been identified, including BAG3, YAP/TAZ and WWOX. In addition to host WW-domain regulators of virus budding, host PPxY-containing proteins also contribute to regulating this late stage of filovirus replication. For example, angiomotin (AMOT) is a multi-PPxY-containing host protein that functionally interacts with many of the same WW-domain-containing proteins that regulate virus egress and spread. In this report, we demonstrate that host WWOX, which negatively regulates egress of VP40 VLPs and recombinant VSV-M40 virus, interacts with and suppresses the expression of AMOT. We found that WWOX disrupts AMOT's scaffold-like tubular distribution and reduces AMOT localization at the plasma membrane via lysosomal degradation. In sum, our findings reveal an indirect and novel mechanism by which modular PPxY/WW-domain interactions between AMOT and WWOX regulate PPxY-mediated egress of filovirus VP40 VLPs. A better understanding of this modular network and competitive nature of protein-protein interactions will help to identify new antiviral targets and therapeutic strategies. IMPORTANCE Filoviruses (Ebola [EBOV] and Marburg [MARV]) are zoonotic, emerging pathogens that cause outbreaks of severe hemorrhagic fever in humans. A fundamental understanding of the virus-host interface is critical for understanding the biology of these viruses and for developing future strategies for therapeutic intervention. Here, we reveal a novel mechanism by which host proteins WWOX and AMOTp130 interact with each other and with the EBOV matrix protein VP40 to regulate VP40-mediated egress of virus like particles (VLPs). Our results highlight the biological impact of competitive interplay of modular virus-host interactions on both the virus lifecycle and the host cell.
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28
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Sweileh WM. Global research activity on mathematical modeling of transmission and control of 23 selected infectious disease outbreak. Global Health 2022; 18:4. [PMID: 35062966 PMCID: PMC8778503 DOI: 10.1186/s12992-022-00803-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 01/11/2022] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Mathematical analysis and modeling allow policymakers to understand and predict the dynamics of an infectious disease under several different scenarios. The current study aimed to analyze global research activity on mathematical modeling of transmission and control of several infectious diseases with a known history of serious outbreaks. METHODS Relevant publications were retrieved using a comprehensive validated search query. The database used was SciVerse Scopus. Indicators related to evolution, growth of publications, infectious diseases encountered, key players, citations, and international research collaboration were presented. RESULTS The search strategy found 5606. The growth of publications started in 1967 and showed a sharp rise in 2020 and 2021. The retrieved articles received relatively high citations (h-index = 158). Despite being multidisciplinary, Plos One journal made the highest contribution to the field. The main findings of the study are summarized as follows: (a) COVID-19 had a strong impact on the number of publications in the field, specifically during the years 2020 and 2021; (b) research in the field was published in a wide range of journals, mainly those in the field of infectious diseases and mathematical sciences; (c) research in the field was mainly published by scholars in the United States and the United Kingdom; (d) international research collaboration between active countries and less developed countries was poor; (e) research activity relied on research groups with a large number of researchers per group indicative of good author-author collaboration; (f) HIV/AIDS, coronavirus disease, influenza, and malaria were the most frequently researched diseases; (g) recently published articles on COVID-19 received the highest number of citations; and (h) researchers in the Eastern Mediterranian and South-East Asian regions made the least contribution to the retrieved articles. CONCLUSION Mathematical modeling is gaining popularity as a tool for understanding the dynamics of infectious diseases. The application of mathematical modeling on new emerging infectious disease outbreaks is a priority. Research collaboration with less developed countries in the field of mathematical epidemiology is needed and should be prioritized and funded.
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Affiliation(s)
- Waleed M Sweileh
- Department of Physiology, Pharmacology/Toxicology, Division of Biomedical Sciences, College of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
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29
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Mörschbächer AP, Granada CE. MAPPING THE WORLDWIDE KNOWLEDGE OF ANTIMICROBIAL SUBSTANCES PRODUCED BY Lactobacillus spp.: A BIBLIOMETRIC ANALYSIS. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108343] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Liu M, Bu Y, Chen C, Xu J, Li D, Leng Y, Freeman RB, Meyer ET, Yoon W, Sung M, Jeong M, Lee J, Kang J, Min C, Song M, Zhai Y, Ding Y. Pandemics are catalysts of scientific novelty: Evidence from
COVID
‐19. J Assoc Inf Sci Technol 2021; 73:1065-1078. [PMID: 35441082 PMCID: PMC9011856 DOI: 10.1002/asi.24612] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 11/07/2021] [Accepted: 12/08/2021] [Indexed: 11/24/2022]
Abstract
Scientific novelty drives the efforts to invent new vaccines and solutions during the pandemic. First‐time collaboration and international collaboration are two pivotal channels to expand teams' search activities for a broader scope of resources required to address the global challenge, which might facilitate the generation of novel ideas. Our analysis of 98,981 coronavirus papers suggests that scientific novelty measured by the BioBERT model that is pretrained on 29 million PubMed articles, and first‐time collaboration increased after the outbreak of COVID‐19, and international collaboration witnessed a sudden decrease. During COVID‐19, papers with more first‐time collaboration were found to be more novel and international collaboration did not hamper novelty as it had done in the normal periods. The findings suggest the necessity of reaching out for distant resources and the importance of maintaining a collaborative scientific community beyond nationalism during a pandemic.
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Affiliation(s)
- Meijun Liu
- Institute for Global Public Policy Fudan University Shanghai China
| | - Yi Bu
- Department of Information Management Peking University Beijing China
| | - Chongyan Chen
- School of Information University of Texas at Austin Austin Texas
| | - Jian Xu
- School of Information Management Sun Yat‐sen University Guangzhou China
| | - Daifeng Li
- School of Information Management Sun Yat‐sen University Guangzhou China
| | - Yan Leng
- McCombs School of Business University of Texas at Austin Austin Texas
| | - Richard B. Freeman
- Department of Economics Harvard University Cambridge Massachusetts
- National Bureau of Economic Research (NBER) Cambridge Massachusetts
| | - Eric T. Meyer
- School of Information University of Texas at Austin Austin Texas
| | - Wonjin Yoon
- Department of Computer Science and Engineering Korea University Seoul South Korea
| | - Mujeen Sung
- Department of Computer Science and Engineering Korea University Seoul South Korea
| | - Minbyul Jeong
- Department of Computer Science and Engineering Korea University Seoul South Korea
| | - Jinhyuk Lee
- Department of Computer Science and Engineering Korea University Seoul South Korea
| | - Jaewoo Kang
- Department of Computer Science and Engineering Korea University Seoul South Korea
- Interdisciplinary Graduate Program in Bioinformatics Korea University Seoul South Korea
| | - Chao Min
- School of Information Management Nanjing University Nanjing China
| | - Min Song
- Department of Library and Information Science Yonsei University Seoul South Korea
| | - Yujia Zhai
- Department of Information Resource Management, School of Management Tianjin Normal University Tianjin China
- School of Information Management Wuhan University Wuhan China
| | - Ying Ding
- School of Information University of Texas at Austin Austin Texas
- Dell Medical School University of Texas at Austin Austin Texas
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31
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Loomis RJ, DiPiazza AT, Falcone S, Ruckwardt TJ, Morabito KM, Abiona OM, Chang LA, Caringal RT, Presnyak V, Narayanan E, Tsybovsky Y, Nair D, Hutchinson GB, Stewart-Jones GBE, Kueltzo LA, Himansu S, Mascola JR, Carfi A, Graham BS. Chimeric Fusion (F) and Attachment (G) Glycoprotein Antigen Delivery by mRNA as a Candidate Nipah Vaccine. Front Immunol 2021; 12:772864. [PMID: 34956199 PMCID: PMC8692728 DOI: 10.3389/fimmu.2021.772864] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/12/2021] [Indexed: 12/12/2022] Open
Abstract
Nipah virus (NiV) represents a significant pandemic threat with zoonotic transmission from bats-to-humans with almost annual regional outbreaks characterized by documented human-to-human transmission and high fatality rates. Currently, no vaccine against NiV has been approved. Structure-based design and protein engineering principles were applied to stabilize the fusion (F) protein in its prefusion trimeric conformation (pre-F) to improve expression and increase immunogenicity. We covalently linked the stabilized pre-F through trimerization domains at the C-terminus to three attachment protein (G) monomers, forming a chimeric design. These studies detailed here focus on mRNA delivery of NiV immunogens in mice, assessment of mRNA immunogen-specific design elements and their effects on humoral and cellular immunogenicity. The pre-F/G chimera elicited a strong neutralizing antibody response and a superior NiV-specific Tfh and other effector T cell response compared to G alone across both the mRNA and protein platforms. These findings enabled final candidate selection of pre-F/G Fd for clinical development.
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Affiliation(s)
- Rebecca J. Loomis
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States,*Correspondence: Barney S. Graham, ; Rebecca J. Loomis,
| | - Anthony T. DiPiazza
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | | | - Tracy J. Ruckwardt
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Kaitlyn M. Morabito
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Olubukola M. Abiona
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Lauren A. Chang
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Ria T. Caringal
- Vaccine Production Program, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | | | | | - Yaroslav Tsybovsky
- Vaccine Research Center Electron Microscopy Unit, Cancer Research Technology Program, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, United States
| | - Deepika Nair
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Geoffrey B. Hutchinson
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Guillaume B. E. Stewart-Jones
- Virology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Lisa A. Kueltzo
- Vaccine Production Program, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | | | - John R. Mascola
- Virology Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | | | - Barney S. Graham
- Viral Pathogenesis Laboratory, Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States,*Correspondence: Barney S. Graham, ; Rebecca J. Loomis,
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Yan P, Li M, Li J, Lu Z, Hui X, Bai Y, Xun Y, Lao Y, Wang S, Yang K. Bibliometric Analysis and Systematic Review of Global Coronavirus Research Trends Before COVID-19: Prospects and Implications for COVID-19 Research. Front Med (Lausanne) 2021; 8:729138. [PMID: 34869424 PMCID: PMC8635101 DOI: 10.3389/fmed.2021.729138] [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: 06/22/2021] [Accepted: 10/04/2021] [Indexed: 11/13/2022] Open
Abstract
Coronaviruses (CoV) cause respiratory and intestinal infections. We conducted this bibliometric analysis and systematical review to explore the CoV-related research trends from before COVID-19. We systematically searched the Ovid MEDLINE, Ovid Embase, and Web of Science (WOS) databases for published bibliometric analyses of CoV from database inception to January 24, 2021. The WOS Collection was searched from inception to January 31, 2020, to acquire the CoV-related publications before COVID-19. One-Way ANOVA and Bonferroni multiple-comparison tests were used to compare differences. Visualization mapping and keyword cluster graphs were made to illustrate the research topics and hotpots. We included 14,141 CoV-related publications for the bibliometric analysis and 16 (12 articles) CoV-related bibliometric analyses for the systematic review. Both the systematic review and bibliometric analysis showed (1) the number of publications showed two steep upward trajectories in 2003-2004 and in 2012-2014; (2) the research hotpots mainly focused on the mechanism, pathology, epidemiology, clinical diagnosis, and treatment of the coronavirus in MERS-CoV and SARS-Cov; (3) the USA, and China; the University of Hong Kong; and Yuen KY, came from the University of Hong Kong contributed most; (4) the Journal of Virology had the largest number of CoV related studies. More studies should focus on prevention, diagnosis, and treatment in the future.
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Affiliation(s)
- Peijing Yan
- Department of Epidemiology and Health Statistics, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Meixuan Li
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Evidence Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China
| | - Jing Li
- Evidence Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Zhenxing Lu
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Xu Hui
- Evidence Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China
| | - Yuping Bai
- School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China.,Department of Scientific Research, Gansu Provincial Hospital, Lanzhou, China.,Department of Pathology, 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Yangqin Xun
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China.,WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
| | - Yongfeng Lao
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
| | - Shizhong Wang
- Department of Orthopedics, Wuwei People's Hospital, Wuwei, China
| | - Kehu Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou, China.,Evidence Based Social Science Research Center, School of Public Health, Lanzhou University, Lanzhou, China.,Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou, China.,WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou University, Lanzhou, China
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SARS-CoV-2, Zika viruses and mycoplasma: Structure, pathogenesis and some treatment options in these emerging viral and bacterial infectious diseases. Biochim Biophys Acta Mol Basis Dis 2021; 1867:166264. [PMID: 34481867 PMCID: PMC8413106 DOI: 10.1016/j.bbadis.2021.166264] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 07/22/2021] [Accepted: 08/30/2021] [Indexed: 01/28/2023]
Abstract
The molecular evolution of life on earth along with changing environmental, conditions has rendered mankind susceptible to endemic and pandemic emerging infectious diseases. The effects of certain systemic viral and bacterial infections on morbidity and mortality are considered as examples of recent emerging infections. Here we will focus on three examples of infections that are important in pregnancy and early childhood: SARS-CoV-2 virus, Zika virus, and Mycoplasma species. The basic structural characteristics of these infectious agents will be examined, along with their general pathogenic mechanisms. Coronavirus infections, such as caused by the SARS-CoV-2 virus, likely evolved from zoonotic bat viruses to infect humans and cause a pandemic that has been the biggest challenge for humanity since the Spanish Flu pandemic of the early 20th century. In contrast, Zika Virus infections represent an expanding infectious threat in the context of global climate change. The relationship of these infections to pregnancy, the vertical transmission and neurological sequels make these viruses highly relevant to the topics of this special issue. Finally, mycoplasmal infections have been present before mankind evolved, but they were rarely identified as human pathogens until recently, and they are now recognized as important coinfections that are able to modify the course and prognosis of various infectious diseases and other chronic illnesses. The infectious processes caused by these intracellular microorganisms are examined as well as some general aspects of their pathogeneses, clinical presentations, and diagnoses. We will finally consider examples of treatments that have been used to reduce morbidity and mortality of these infections and discuss briefly the current status of vaccines, in particular, against the SARS-CoV-2 virus. It is important to understand some of the basic features of these emerging infectious diseases and the pathogens involved in order to better appreciate the contributions of this special issue on how infectious diseases can affect human pregnancy, fetuses and neonates.
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Asubiaro TV, Shaik H. Sub-Saharan African Countries‘ COVID-19 Research: An analysis of the External and Internal Contributions, Collaboration Patterns and Funding Sources. OPEN INFORMATION SCIENCE 2021. [DOI: 10.1515/opis-2020-0125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
This study aims at providing some evidence-based insight into Sub-Saharan Africa’s first eighteen months of COVID-19 research by evaluating its research contributions, patterns of collaboration, and funding sources. Eighteen months (2020 January 1-2021 June 30) COVID-19 publication data of 46 Sub-Saharan African countries was collected from Scopus for analysis. Country of affiliation of the authors and funding agencies data was analyzed to understand country contributions, collaboration pattern and funding sources. USA (23.08%) and the UK (19.63%), the top two external contributors, collaborated with Sub-Saharan African countries about three times more than other countries. Collaborative papers between Sub-Saharan African countries - without contributions from outside the region- made up less than five per cent of the sample, whereas over 50% of the papers were written in collaboration with researchers from outside the region. Organizations that are in the USA and the UK funded 45% of all the COVID-19 research from Sub-Saharan Africa. 53.44% of all the funding from Sub-Saharan African countries came from South African organizations. This study provides evidence that pan-African COVID-19 research collaboration is low, perhaps due to poor funding and lack of institutional support within Sub-Saharan Africa. This mirrors the collaborative features of science in Sub-Saharan Africa before the COVID-19 pandemic. The high volume of international collaboration during the pandemic is a good development. There is also a strong need to forge more robust pan-African research collaboration networks, through funding from Africa’s national and regional government organizations, with the specific objective of meeting local COVID-19 and other healthcare needs.
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Root Canal Disinfection Articles with the Highest Relative Citation Ratios. A Bibliometric Analysis from 1990 to 2019. Antibiotics (Basel) 2021; 10:antibiotics10111412. [PMID: 34827350 PMCID: PMC8614753 DOI: 10.3390/antibiotics10111412] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/11/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022] Open
Abstract
The relative citation rate (RCR) is a normalized article-level metric useful to assess the impact of research articles. The objective of this bibliometric study is to identify and analyze, in root canal disinfection, the 100 articles having the highest RCRs in the period 1990–2019, then compare them with the top 100 articles most cited. A cross-sectional study was performed, and the search strategy ((Disinfection AND root canal) AND ((“1990/01/01”[Date-Publication]: “2019/12/31”[Date-Publication]))) relied on PubMed (n = 4294 documents), and article data were downloaded from the iCite database. The 100 articles with the highest RCRs and the top 100 cited were selected and evaluated in bibliometric terms. Among the 100 articles with the highest RCRs, there were no differences in the three decades for RCRs values, but there were in citations, being 2000–2009 the most cited. The USA was the predominant country (n = 30), followed by Brazil (n = 14). The most frequent study designs were reviews (n = 27) and in vitro (n = 25) and ex vivo (n = 24) studies. All subfields were well represented, although they varied over time. In 2010–2019, regenerative procedures and irrigation/disinfection techniques were predominant. Considering the RCR’s top 100 articles, 76 were common with the 100 most cited articles. Using the RCR metric allowed us to identify influential articles in root canal disinfection, a research field with topics of significance that fluctuate over time. Compared to citations, RCR reduces the time from publication to detection of its importance for the readership and could be a valid alternative to citation counts.
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Enchéry F, Dumont C, Iampietro M, Pelissier R, Aurine N, Bloyet LM, Carbonnelle C, Mathieu C, Journo C, Gerlier D, Horvat B. Nipah virus W protein harnesses nuclear 14-3-3 to inhibit NF-κB-induced proinflammatory response. Commun Biol 2021; 4:1292. [PMID: 34785771 PMCID: PMC8595879 DOI: 10.1038/s42003-021-02797-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/08/2021] [Indexed: 12/15/2022] Open
Abstract
Nipah virus (NiV) is a highly pathogenic emerging bat-borne Henipavirus that has caused numerous outbreaks with public health concerns. It is able to inhibit the host innate immune response. Since the NF-κB pathway plays a crucial role in the innate antiviral response as a major transcriptional regulator of inflammation, we postulated its implication in the still poorly understood NiV immunopathogenesis. We report here that NiV inhibits the canonical NF-κB pathway via its nonstructural W protein. Translocation of the W protein into the nucleus causes nuclear accumulation of the cellular scaffold protein 14-3-3 in both African green monkey and human cells infected by NiV. Excess of 14-3-3 in the nucleus was associated with a reduction of NF-κB p65 subunit phosphorylation and of its nuclear accumulation. Importantly, W-S449A substitution impairs the binding of the W protein to 14-3-3 and the subsequent suppression of NF-κB signaling, thus restoring the production of proinflammatory cytokines. Our data suggest that the W protein increases the steady-state level of 14-3-3 in the nucleus and consequently enhances 14-3-3-mediated negative feedback on the NF-κB pathway. These findings provide a mechanistic model of W-mediated disruption of the host inflammatory response, which could contribute to the high severity of NiV infection.
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Affiliation(s)
- François Enchéry
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Claire Dumont
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Mathieu Iampietro
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Rodolphe Pelissier
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Noémie Aurine
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Louis-Marie Bloyet
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Caroline Carbonnelle
- INSERM- Laboratoire P4 Jean Mérieux, 21 Avenue Tony Garnier, 69365, Lyon, France
| | - Cyrille Mathieu
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Chloé Journo
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Denis Gerlier
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France
| | - Branka Horvat
- CIRI, Centre International de Recherche en Infectiologie, Inserm U1111, CNRS, UMR5308, Univ Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, Lyon, France.
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Hill E, Gurbutt D, Makuloluwa T, Gordon M, Georgiou R, Roddam H, Seneviratne S, Byrom A, Pollard K, Abhayasinghe K, Chance-Larsen K. Collaborative healthcare education programmes for continuing professional education in low and middle-income countries: A Best Evidence Medical Education (BEME) systematic review. BEME Guide No. 65. MEDICAL TEACHER 2021; 43:1228-1241. [PMID: 34499841 DOI: 10.1080/0142159x.2021.1962832] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
BACKGROUND Large discrepancies exist between standards of healthcare provision in high-income (HICs) and low and middle-income countries (LMICs). The root cause is often financial, resulting in poor infrastructure and under-resourced education and healthcare systems. Continuing professional education (CPE) programmes improve staff knowledge, skills, retention, and practice, but remain costly and rare in low-resource settings. One potential solution involves healthcare education collaborations between institutions in HICs and LMICs to provide culturally appropriate CPE in LMICs. To be effective, educational partnerships must address the challenges arising from differences in cultural norms, language, available technology and organisational structures within collaborating countries. METHODS Seven databases and other sources were systematically searched on 7 July 2020 for relevant studies. Citations, abstracts, and studies were screened and consensus was reached on which to include within the review. 54 studies were assessed regarding the type of educational programme involved, the nature of HIC/LMIC collaboration and quality of the study design. RESULTS Studies varied greatly regarding the types and numbers of healthcare professionals involved, pedagogical and delivery methods, and the ways in which collaboration was undertaken. Barriers and enablers of collaboration were identified and discussed. The key findings were: 1. The methodological quality of reporting in the studies was generally poor. 2. The way in which HIC/LMIC healthcare education collaboration is undertaken varies according to many factors, including what is to be delivered, the learner group, the context, and the resources available. 3. Western bias was a major barrier. 4. The key to developing successful collaborations was the quality, nature, and duration of the relationships between those involved. CONCLUSION This review provides insights into factors that underpin successful HIC/LMIC healthcare CPE collaborations and outlines inequities and quality issues in reporting.
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Affiliation(s)
- Elaine Hill
- School of Sport and Health Sciences, UCLan, Preston, UK
| | - Dawne Gurbutt
- Centre for Collaborative Learning, UCLan, Preston, UK
| | - Thamasi Makuloluwa
- Faculty of Medicine, General Sir John Kotelawala Defence University, Ratmalana, Sri Lanka
| | | | | | - Hazel Roddam
- School of Sport and Health Sciences, UCLan, Preston, UK
| | - Sujatha Seneviratne
- Department of Nursing and Midwifery, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Anna Byrom
- School of Community Health and Midwifery, UCLan, Preston, UK
| | - Kerry Pollard
- School of Community Health and Midwifery, UCLan, Preston, UK
| | - Kalpani Abhayasinghe
- Department of Nursing and Midwifery, General Sir John Kotelawala Defence University, Ratmalana, Sri Lanka
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Chen Y, Zhang X, Chen S, Zhang Y, Wang Y, Lu Q, Zhao Y. Bibliometric analysis of mental health during the COVID-19 pandemic. Asian J Psychiatr 2021; 65:102846. [PMID: 34562753 PMCID: PMC8435062 DOI: 10.1016/j.ajp.2021.102846] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND As a global pandemic, coronavirus disease 2019 (COVID-19) has had a profound effect on public mental health. METHODS Publications related to mental health during the COVID-19 pandemic from December 1, 2019, to November 13, 2020, were extracted from the Web of Science database. Bibliometric indicator analysis was performed using VOSviewer 1.6.15. RESULTS In total, 1233 documents from 2020 were retrieved, of which 680 were original articles. The United States contributed the largest publication output (285, 23.1%). Huazhong University of Science and Technology published the most articles in this field (35), while Wuhan University received the most citations (1149). The United Kingdom had the strongest collaboration network. Four keyword clusters representing hotspots in this field were identified. CONCLUSIONS In addition to developed countries, countries seriously affected by the COVID-19 pandemic also made significant contributions to mental health research during the COVID-19 pandemic. This study focused on various aspects, such as mental health during isolation, mental health in healthcare workers, and public mental health issues during the COVID-19 pandemic. In the future, countries should strengthen global cooperation and pay more attention to the mental health of vulnerable groups during pandemics.
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Affiliation(s)
- Ying Chen
- School of Nursing, Tianjin Medical University, Tianjin, China
| | - Xiaojun Zhang
- School of Nursing, Tianjin Medical University, Tianjin, China
| | - Shixiang Chen
- School of Nursing, Tianjin Medical University, Tianjin, China
| | - Yanwen Zhang
- Department of Cardiology, Tianjin Medical University General Hospital, Tianjin, China
| | - Yulu Wang
- School of Nursing, Tianjin Medical University, Tianjin, China
| | - Qi Lu
- School of Nursing, Tianjin Medical University, Tianjin, China.
| | - Yue Zhao
- School of Nursing, Tianjin Medical University, Tianjin, China.
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Ramos MB, Criscuoli de Farias FA, Teixeira MJ, Figueiredo EG. The Most Influential Papers in Infectious Meningitis Research: A Bibliometric Study. Neurol India 2021; 69:817-825. [PMID: 34507394 DOI: 10.4103/0028-3886.325362] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Bibliometric analyses allow detecting citation trends within a field, including assessments of the most cited journals, countries, institutions, topics, types of study, and authors. Objective The aim of this study was to perform a bibliometric analysis of the 100 most cited papers within infectious meningitis research. Materials and Methods The 100 most cited publications and their data were retrieved from Scopus and Web of Science during 2019. Results The New England Journal of Medicine had the greatest number of articles (27) and citations (12,266) in the top 100. Articles were mainly published after the late 1980s. Bacteria were the most discussed agents (72 articles and 26,362 citations), but Cryptococcus sp represented the most-discussed single agent (16 articles and 6,617 citations). Primary research represented 70 articles and 25,754 citations. Among them, the most discussed topic was Clinical Features and Diagnosis/Outcomes (22 articles and 8,325 citations). Among the 27 secondary research articles, the most common type of study was Narrative Review (18 articles and 5,685 citations). The United States was the country with the greatest number of articles (56) and citations (21,388). Centers for Disease Control and Prevention (CDC) and Yale University had the greatest number of articles (six each), being CDC the most cited (3,559). Conclusions The most cited articles within meningitis research are primary research studies, more frequently published in high IF journals and by North American institutions. Bacterial meningitis comprises the majority of publications. The articles were mainly published after the AIDS pandemic and after the implementation of the main vaccines for meningitis.
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Gupta P, Singh MP, Goyal K, Tripti P, Ansari MI, Obli Rajendran V, Dhama K, Malik YS. Bats and viruses: a death-defying friendship. Virusdisease 2021; 32:467-479. [PMID: 34518804 PMCID: PMC8426161 DOI: 10.1007/s13337-021-00716-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 06/19/2021] [Indexed: 01/10/2023] Open
Abstract
Bats have a primeval evolutionary origin and have adopted various survival methods. They have played a central role in the emergence of various viral diseases. The sustenance of a plethora of virus species inside them has been an earnest area of study. This review explains how the evolution of viruses in bats has been linked to their metabolic pathways, flight abilities, reproductive abilities and colonization behaviors. The utilization of host immune response by DNA and RNA viruses is a commencement of the understanding of differences in the impact of viral infection in bats from other mammals. Rabies virus and other lyssa viruses have had long documented history as bat viruses. While many others like Ebola virus, Nipah virus, Hantavirus, SARS-CoV, MERS-CoV and other new emerging viruses like Sosuga virus, Menangle and Tioman virus are now being studied extensively for their transmission in new hosts. The ongoing pandemic SARS-CoV-2 virus has also been implicated to be originated from bats. Certain factors have been linked to spillover events while the scope of entitlement of other conditions in the spread of diseases from bats still exists. However, certain physiological and ecological parameters have been linked to specific transmission patterns, and more definite proofs are awaited for establishing these connections.
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Affiliation(s)
- Parakriti Gupta
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Mini P. Singh
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Kapil Goyal
- Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pande Tripti
- Biological Standardization Division, ICAR-Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, Bareilly, Uttar Pradesh 243 122 India
| | - Mohd Ikram Ansari
- Department of Biosciences, Integral University, Dasauli, Kursi Road, Lucknow, Uttar Pradesh 226026 India
| | - Vinodhkumar Obli Rajendran
- Division of Epidemiology, ICAR-Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, Bareilly, Uttar Pradesh 243 122 India
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, Bareilly, Uttar Pradesh 243 122 India
| | - Yashpal Singh Malik
- College of Animal Biotechnology, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, Punjab 141 004 India
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Abstract
Background Evidence showed that mental health literacy reduces stigma and promotes help-seeking intentions. This study provides a bibliometric analysis of global research activity on mental health literacy. A bibliometric method was applied using Scopus. The term “mental health literacy” was searched in the title, abstract, and author keywords for the study period from 1900 to 2019. Conventional bibliometric indicators and mapping were generated. Results The search query found 945 documents. The earliest documents were published in 1997. The retrieved documents received an average of 25.3 citations per document and an h-index of 67. Authors from 68 different countries participated in publishing the retrieved documents. Australia ranked first (n=354, 37.5%) followed distantly by the USA (n=172, 18.2%). In total, 362 different journals participated in publishing the retrieved documents. The Australian and New Zealand Journal of Psychiatry (n=43, 11.8%) ranked first followed by the BMC Psychiatry (n=40, 11.0%). Documents published in the BMC Psychiatry journal received the highest number (60.4) of citations per document. In total, 3906 authors participated in publishing the retrieved documents. The average number of authors per document was 4.1. Jorm, A.F ranked first (n=96, 10.2%). Data analysis indicated that the University of Melbourne (n=136, 14.1%) ranked first in the number of publications. Conclusions Literature on “mental health literacy” is growing rapidly mainly in high-income countries. Research collaboration between active countries and low- and middle-income countries is important since many developing countries lack expertise and the infrastructure for mental health literacy research.
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Tran A, Monreal IA, Moskovets E, Aguilar HC, Jones JW. Rapid Detection of Viral Envelope Lipids Using Lithium Adducts and AP-MALDI High-Resolution Mass Spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:2322-2333. [PMID: 33886294 PMCID: PMC8995026 DOI: 10.1021/jasms.1c00058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
There is an unmet need to develop analytical strategies that not only characterize the lipid composition of the viral envelope but also do so on a time scale that would allow for high-throughput analysis. With that in mind, we report the use of atmospheric pressure (AP) matrix-assisted laser desorption/ionization (MALDI) high-resolution mass spectrometry (HRMS) combined with lithium adduct consolidation to profile total lipid extracts rapidly and confidently from enveloped viruses. The use of AP-MALDI reduced the dependency of using a dedicated MALDI mass spectrometer and allowed for interfacing the MALDI source to a mass spectrometer with the desired features, which included high mass resolving power (>100000) and tandem mass spectrometry. AP-MALDI combined with an optimized MALDI matrix system, featuring 2',4',6'-trihydroxyacetophenone spiked with lithium salt, resulted in a robust and high-throughput lipid detection platform, specifically geared to sphingolipid detection. Application of the developed workflow included the structural characterization of prominent sphingolipids and detection of over 130 lipid structures from Influenza A virions. Overall, we demonstrate a high-throughput workflow for the detection and structural characterization of total lipid extracts from enveloped viruses using AP-MALDI HRMS and lithium adduct consolidation.
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Affiliation(s)
- Anh Tran
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
| | - I Abrrey Monreal
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | | | - Hector C Aguilar
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, United States
| | - Jace W Jones
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, Maryland 21201, United States
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Doyle MP, Kose N, Borisevich V, Binshtein E, Amaya M, Nagel M, Annand EJ, Armstrong E, Bombardi R, Dong J, Schey KL, Broder CC, Zeitlin L, Kuang EA, Bornholdt ZA, West BR, Geisbert TW, Cross RW, Crowe JE. Cooperativity mediated by rationally selected combinations of human monoclonal antibodies targeting the henipavirus receptor binding protein. Cell Rep 2021; 36:109628. [PMID: 34469726 PMCID: PMC8527959 DOI: 10.1016/j.celrep.2021.109628] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/25/2021] [Accepted: 08/05/2021] [Indexed: 11/25/2022] Open
Abstract
Hendra virus and Nipah virus (NiV), members of the Henipavirus (HNV) genus, are zoonotic paramyxoviruses known to cause severe disease across six mammalian orders, including humans. We isolated a panel of human monoclonal antibodies (mAbs) from the B cells of an individual with prior exposure to equine Hendra virus (HeV) vaccine, targeting distinct antigenic sites. The most potent class of cross-reactive antibodies achieves neutralization by blocking viral attachment to the host cell receptors ephrin-B2 and ephrin-B3, with a second class being enhanced by receptor binding. mAbs from both classes display synergistic activity in vitro. In a stringent hamster model of NiV Bangladesh (NiVB) infection, antibodies from both classes reduce morbidity and mortality and achieve synergistic protection in combination. These candidate mAbs might be suitable for use in a cocktail therapeutic approach to achieve synergistic potency and reduce the risk of virus escape. Doyle et al. describe two human monoclonal antibodies that target the henipavirus receptor-binding protein, HENV-103 and HENV-117, that display highly potent activity in vitro and enhanced therapeutic efficacy in vivo when delivered as a cocktail.
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Affiliation(s)
- Michael P Doyle
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Nurgun Kose
- The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Viktoriya Borisevich
- Department of Microbiology & Immunology, The University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, The University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Elad Binshtein
- The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Moushimi Amaya
- Department of Microbiology & Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Marcus Nagel
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA
| | - Edward J Annand
- Sydney School of Veterinary Science and Marie Bashir Institute for Infectious Diseases and Biosecurity, University of Sydney, Sydney, Australia; Black Mountain Laboratories & Australian Centre for Disease Preparedness, Health and Biosecurity, CSIRO, Canberra & Geelong, Australia
| | - Erica Armstrong
- The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Robin Bombardi
- The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Jinhui Dong
- The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Kevin L Schey
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA
| | - Christopher C Broder
- Department of Microbiology & Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Larry Zeitlin
- Mapp Biopharmaceutical, Inc., San Diego, CA 92121, USA
| | - Erin A Kuang
- Mapp Biopharmaceutical, Inc., San Diego, CA 92121, USA
| | | | | | - Thomas W Geisbert
- Department of Microbiology & Immunology, The University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, The University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Robert W Cross
- Department of Microbiology & Immunology, The University of Texas Medical Branch, Galveston, TX 77555, USA; Galveston National Laboratory, The University of Texas Medical Branch, Galveston, TX 77555, USA
| | - James E Crowe
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; The Vanderbilt Vaccine Center, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
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Abstract
PurposeThe purpose of the study is to map the funding status of COVID-19 research. The various aspects, such as funding ratio, geographical distribution of funded articles, journals publishing funded research and institutions that sponsor the COVID-19 research are studied. To visualize the country collaboration network and research trends/hotspots in the field of COVID-19 funded research, keyword analysis is also performed. The open-access (OA) status of the funded research on COVID-19 is also discussed.Design/methodology/approachThe leading indexing and abstracting database, i.e. Web of Science (WoS), was used to retrieve the funded articles published on the topic COVID-19. The scientometric approach, more particularly “funding acknowledgment analysis (FAA),” was used to study the research funding.FindingsA total of 5,546 publications of varied nature have been published on COVID-19, of which 1,760 are funded, thus indicating a funding ratio of 32%. China is the leading producer of funded research (760, 43.182%) on COVID-19 followed by the USA (482, 27.386%), England (179, 10.17%), Italy (119, 6.761%), Germany (107, 6.08%) and Canada (107, 6.08%). China is also in lead in terms of the funding ratio (60.94%). However, the funding ratio of the USA (31.54%) is at 11th rank behind Canada (40.68%), Germany (34.18%) and England (35.87%). The USA occupies a central position in the collaboration network having the highest score of articles with other countries (n = 489), with the USA–China collaboration ranking first (n = 123). National Natural Science Foundation of China (NSFC) is the largest source of funding for COVID-19 research, supporting 342 (19.432%) publications, followed by the United States Department of Health Human Services (DHHS) and National Institute of Health (NIH), USA with 211 (11.989%) and 200 (11.364%) publications, respectively. However, China's National Key Research and Development Program achieves the highest citation impact (80.24) for its funded publications. Journal of Medical Virology, Science of the Total Environment and EuroSurveillance are the three most prolific journals publishing 63 (3.58%), 35 (1.989%) and 32 (1.818%), respectively, of the sponsored research articles on the COVID-19. A total of 3,138 institutions produce funded articles with Huazhong University of Science Technology and Wuhan University from China at the forefront publishing 92 (5.227%) and 83 (4.716%) publications, respectively. The funded research on COVID-19 is largely available in OA mode (1,674, 95.11%) and mainly through the Green and Bronze routes. The keyword clustering reveals that the articles mainly focus on the impact, structure and clinical characteristics of the virus.Research limitations/implicationsThe study's main limitation is that the results are based on the publications indexed by WoS, which has limited coverage compared to other databases. Moreover, all the funding agencies do not require or authors miss to acknowledge funding sources in their publications, which ultimately undermines the number of funded publications. The research publications on COVID-19 are also proliferating; thus, the study's findings shall be valid for a minimum period.Practical implicationsThe funding of research on the COVID-19 is highly essential to accelerate innovative research and help countries fight against the global pandemic. The study's findings reflect the efforts made by nations and institutions to remove the financial and accessibility hurdles. It not only underscores the lead of the USA in the research on COVID-19, but also shows China as a forerunner in sponsoring the research, thus, helping to know the contribution of nations toward understanding the dynamics of pandemic and controlling it. The study will help healthcare practitioners and policymakers recognize the areas that remain the focus of sponsored research on COVID-19 and other left-out areas that need to be taken up and thus may help in policy formulation. It further highlights the impact of prolific funding agencies so that efforts may be initiated to increase the impact and thereby the returns of investment. The study can help to map the scientific structure of COVID-19 through the lens of funded research and recognize core inclinations of its development. Overall, a comprehensive analysis has been performed to present the detailed characteristics of sponsored research on emerging area of COVID-19, and it is informative, useful and one of its kind on the theme.Originality/valueThe study explores the funding support of research on COVID-19 and its other aspects, along with the mode of availability.
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Sweileh WM. Global Research Activity on Elder Abuse: A Bibliometric Analysis (1950-2017). J Immigr Minor Health 2021; 23:79-87. [PMID: 32488667 DOI: 10.1007/s10903-020-01034-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Elder abuse is an emerging worldwide public health, human right, and social priority for governments and health policy makers. The aim of the current study was to provide an in-depth quantitative analysis of literature on elder abuse published in academic journals. A bibliometric method was implemented using Scopus database for the study period from 1950 to 2017. The search strategy utilized specific keywords to retrieve relevant documents. One thousand eight hundred seventy-two documents appeared in Scopus when using the search strategy. The annual number of publications showed a fluctuating pattern in the past four decades. Publications on elder abuse originated mainly from Northern America and Western Europe. International research collaboration on elder abuse was relatively low. The mean number of authors per document was 1.4. The Journal of Elder Abuse and Neglect published almost one third of the retrieved documents. The Rush University was the most active institution and Professor Dong, X.Q. was the most active author in this field. The most frequently encountered keywords were risk factors, prevalence, intervention, prevention, dementia, and nursing homes. Physical abuse was the most common type of elder abuse studied followed by psychological and financial abuse. Elder abuse is under-researched and of limited priority in most world regions. Governments need to take into consideration preventive policies of elder abuse based on research findings.
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Affiliation(s)
- Waleed M Sweileh
- Department of Physiology, Pharmacology/Toxicology, Division of Biomedical Sciences, College of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine.
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Abstract
Hendra virus (HeV) and Nipah virus (NiV) are bat-borne zoonotic para-myxoviruses identified in the mid- to late 1990s in outbreaks of severe disease in livestock and people in Australia and Malaysia, respectively. HeV repeatedly re-emerges in Australia while NiV continues to cause outbreaks in South Asia (Bangladesh and India), and these viruses have remained transboundary threats. In people and several mammalian species, HeV and NiV infections present as a severe systemic and often fatal neurologic and/or respiratory disease. NiV stands out as a potential pandemic threat because of its associated high case-fatality rates and capacity for human-to-human transmission. The development of effective vaccines, suitable for people and livestock, against HeV and NiV has been a research focus. Here, we review the progress made in NiV and HeV vaccine development, with an emphasis on those approaches that have been tested in established animal challenge models of NiV and HeV infection and disease.
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Affiliation(s)
- Moushimi Amaya
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, USA;
| | - Christopher C Broder
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814, USA;
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A Review of Global Collaboration on COVID-19 Research during the Pandemic in 2020. SUSTAINABILITY 2021. [DOI: 10.3390/su13147618] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In response to the COVID-19 crisis, which has become a severe threat to the health and sustainability of human life, scholars have published numerous research results. Although the importance of international research collaboration has been highlighted as a means of overcoming this global crisis, research on this particular problem has been lacking. Therefore, this study focused on the response of academia to COVID-19 by examining the collaboration between international research, and its impact. This study extracted data from Scopus, sampling articles and reviews published in 2020. By analyzing scenarios by country and international research collaboration based on data on authors’ nationalities and the research areas of documents, this study revealed that the United States and China contributed the most. In all countries, most research was conducted on medicine. European and American countries demonstrated significant interest in the social sciences and Asian countries in the life sciences. Furthermore, some countries, including Belgium and Pakistan, extended their research interests through international research collaboration. The results of this study highlight the importance of international research collaboration across various areas by overcoming the regional imbalance in intercountry collaboration and the concentration on a limited scope of subjects.
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Amaya M, Cheng H, Borisevich V, Navaratnarajah CK, Cattaneo R, Cooper L, Moore TW, Gaisina IN, Geisbert TW, Rong L, Broder CC. A recombinant Cedar virus based high-throughput screening assay for henipavirus antiviral discovery. Antiviral Res 2021; 193:105084. [PMID: 34077807 DOI: 10.1016/j.antiviral.2021.105084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 04/21/2021] [Accepted: 04/28/2021] [Indexed: 11/28/2022]
Abstract
Nipah virus (NiV) and Hendra virus (HeV) are highly pathogenic, bat-borne paramyxoviruses in the genus Henipavirus that cause severe and often fatal acute respiratory and/or neurologic diseases in humans and livestock. There are currently no approved antiviral therapeutics or vaccines for use in humans to treat or prevent NiV or HeV infection. To facilitate development of henipavirus antivirals, a high-throughput screening (HTS) platform was developed based on a well-characterized recombinant version of the nonpathogenic Henipavirus, Cedar virus (rCedV). Using reverse genetics, a rCedV encoding firefly luciferase (rCedV-Luc) was rescued and its utility evaluated for high-throughput antiviral compound screening. The luciferase reporter gene signal kinetics of rCedV-Luc in different human cell lines was characterized and validated as an authentic real-time measure of viral growth. The rCedV-Luc platform was optimized as an HTS assay that demonstrated high sensitivity with robust Z' scores, excellent signal-to-background ratios and coefficients of variation. Eight candidate compounds that inhibited rCedV replication were identified for additional validation and demonstrated that 4 compounds inhibited authentic NiV-Bangladesh replication. Further evaluation of 2 of the 4 validated compounds in a 9-point dose response titration demonstrated potent antiviral activity against NiV-Bangladesh and HeV, with minimal cytotoxicity. This rCedV reporter can serve as a surrogate yet authentic BSL-2 henipavirus platform that will dramatically accelerate drug candidate identification in the development of anti-henipavirus therapies.
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Affiliation(s)
- Moushimi Amaya
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, 20814, USA
| | - Han Cheng
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Viktoriya Borisevich
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | | | - Roberto Cattaneo
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, 55905, USA
| | - Laura Cooper
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Terry W Moore
- Department of Pharmaceutical Sciences and University of Illinois Cancer Center, University of Illinois at Chicago, Chicago, IL, 60612, USA
| | - Irina N Gaisina
- Chicago BioSolutions Inc., 2242 W Harrison Street, Chicago, IL, 60612, USA
| | - Thomas W Geisbert
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Lijun Rong
- Department of Microbiology and Immunology, University of Illinois at Chicago, Chicago, IL, 60612, USA.
| | - Christopher C Broder
- Department of Microbiology and Immunology, Uniformed Services University, Bethesda, MD, 20814, USA.
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Belobo JTE, Kenmoe S, Kengne-Nde C, Emoh CPD, Bowo-Ngandji A, Tchatchouang S, Sowe Wobessi JN, Mbongue Mikangue CA, Tazokong HR, Kingue Bebey SR, Atembeh Noura E, Ka’e AC, Guiamdjo Simo RE, Modiyinji AF, Ngongang DT, Che E, Kenfack S, Nzukui ND, Amvongo Adjia N, Babassagana IT, Mahamat G, Mbaga DS, Mbacham WF, Sadeuh-Mbah SA, Njouom R. Worldwide epidemiology of Crimean-Congo Hemorrhagic Fever Virus in humans, ticks and other animal species, a systematic review and meta-analysis. PLoS Negl Trop Dis 2021; 15:e0009299. [PMID: 33886556 PMCID: PMC8096040 DOI: 10.1371/journal.pntd.0009299] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 05/04/2021] [Accepted: 03/08/2021] [Indexed: 11/18/2022] Open
Abstract
There are uncertainties about the global epidemiological data of infections due to Crimean-Congo hemorrhagic fever virus (CCHFV). We estimated the global case fatality rate (CFR) of CCHFV infections and the prevalence of CCHFV in humans, ticks and other animal species. We also explored the socio-demographic and clinical factors that influence these parameters. In this systematic review with meta-analyses we searched publications from database inception to 03rd February 2020 in Pubmed, Scopus, and Global Index Medicus. Studies included in this review provided cross-sectional data on the CFR and/or prevalence of one or more targets used for the detection of CCHFV. Two independent investigators selected studies to be included. Data extraction and risk of bias assessment were conducted independently by all authors. Data collected were analysed using a random effect meta-analysis. In all, 2345 records were found and a total of 312 articles (802 prevalence and/or CFR data) that met the inclusion criteria were retained. The overall CFR was 11.7% (95% CI = 9.1-14.5), 8.0% (95% CI = 1.0-18.9), and 4.7% (95% CI = 0.0-37.6) in humans with acute, recent, and past CCHFV infections respectively. The overall CCHFV acute infections prevalence was 22.5% (95% CI = 15.7-30.1) in humans, 2.1% (95% CI = 1.3-2.9) in ticks, and 4.5% (95% CI = 1.9-7.9) in other animal species. The overall CCHFV recent infections seroprevalence was 11.6% (95% CI = 7.9-16.4) in humans and 0.4% (95% CI = 0.0-2.9) in other animal species. The overall CCHFV past infections seroprevalence was 4.3% (95% CI = 3.3-5.4) in humans and 12.0% (95% CI = 9.9-14.3) in other animal species. CFR was higher in low-income countries, countries in the WHO African, South-East Asia and Eastern Mediterranean regions, in adult and ambulatory patients. CCHFV detection rate in humans were higher in CCHFV suspected cases, healthcare workers, adult and hospitalized patients, ticks of the genus Ornithodoros and Amblyomma and in animals of the orders Perissodactyla and Bucerotiformes. This review highlights a significant disease burden due to CCHFV with a strong disparity according to country income levels, geographic regions, various human categories and tick and other animal species. Preventive measures in the light of these findings are expected.
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Affiliation(s)
- Jean Thierry Ebogo Belobo
- Medical Research Centre, Institute of Medical Research and Medicinal Plants Studies, Yaoundé, Cameroon
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | - Sebastien Kenmoe
- Virology Department, Centre Pasteur of Cameroon, Yaoundé, Cameroon
- * E-mail: (SK); (RN)
| | - Cyprien Kengne-Nde
- Epidemiological Surveillance, Evaluation and Research Unit, National AIDS Control Committee, Yaoundé, Cameroon
| | | | - Arnol Bowo-Ngandji
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | | | | | | | - Hervé Raoul Tazokong
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | | | - Efietngab Atembeh Noura
- Medical Research Centre, Institute of Medical Research and Medicinal Plants Studies, Yaoundé, Cameroon
| | - Aude Christelle Ka’e
- Virology Department, Chantal Biya International Reference Centre, Yaoundé, Cameroon
| | | | | | - Dimitri Tchami Ngongang
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | - Emmanuel Che
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | - Sorel Kenfack
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | - Nathalie Diane Nzukui
- School of Health Sciences-Catholic University of Central Africa, Department of Medical Microbiology, Yaoundé, Cameroon
| | - Nathalie Amvongo Adjia
- Medical Research Centre, Institute of Medical Research and Medicinal Plants Studies, Yaoundé, Cameroon
| | | | - Gadji Mahamat
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | - Donatien Serge Mbaga
- Department of Microbiology, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | - Wilfred Fon Mbacham
- Department of Biochemistry, Faculty of Science, The University of Yaounde I, Yaoundé, Cameroon
| | | | - Richard Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaoundé, Cameroon
- * E-mail: (SK); (RN)
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Sweileh WM. Global Research Activity on E-Learning in Health Sciences Education: a Bibliometric Analysis. MEDICAL SCIENCE EDUCATOR 2021; 31:765-775. [PMID: 33680569 PMCID: PMC7920637 DOI: 10.1007/s40670-021-01254-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/16/2021] [Indexed: 05/04/2023]
Abstract
Objective Progress in electronic learning (e-learning) and health sciences education is an indicator of the national and international efforts to achieve sustainable development goals regarding good health and quality education. The objective of the current study was to describe research volume and trends on e-learning in the health sciences education. Methods A bibliometric methodology was adopted. The study period was from database inception until December 31, 2020. The data was downloaded from Scopus as a "csv" file. The data was analyzed to reveal prominent contributing countries, institution, authorship patterns, the degree of collaboration, international research collaboration, prominent sources for publications, frequent author keywords, the impact of research in terms of citations, and healthcare groups targeted in research. Results In total, 4576 records were retrieved. The analysis revealed an increasing growth in number of publications with time. There was a sharp peak in 2020. Recent literature on e-learning in health education included keywords such as flipped classroom, mobile learning, blended learning, and COVID-19. Countries in the European region and the region of the Americas have the highest contribution while countries in the African and the South-East Asian region have the least contribution. There was an increasing trend in the degree of author collaboration with time. However, the extent of international research collaboration was inadequate. The USA had the least percentage of documents with international authors (18%) while Sweden had the highest (70.6%). Documents published from Canada had the highest number of citations per document. The Karolinska Institute, based in Sweden, was the most active institution. The Medical Teacher journal ranked first in the number of publications while documents published in the Academic Medicine journal received the highest number of citations per document. The bulk of the retrieved literature was about medical or nursing education. The retrieved documents had an average of 12.7 citations per document and an H-index of 81. Conclusion Data presented can be used to develop and enhance e-learning in health sciences education in regions with poor research contribution. Policies regarding open access publications, international research collaboration, and adoption of e-learning methodologies in low- and middle-income countries need to be endorsed.
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Affiliation(s)
- Waleed M. Sweileh
- Department of Physiology, Pharmacology/Toxicology, Division of Biomedical Sciences, College of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
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