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      Bee products as a source of promising therapeutic and chemoprophylaxis strategies against COVID‐19 (SARS‐CoV‐2)

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          Abstract

          The emergence of novel coronavirus (SARS‐CoV‐2) in 2019 in China marked the third outbreak of a highly pathogenic coronavirus infecting humans. The novel coronavirus disease (COVID‐19) spread worldwide, becoming an emergency of major international concern. However, even after a decade of coronavirus research, there are still no licensed vaccines or therapeutic agents to treat the coronavirus infection. In this context, apitherapy presents as a promising source of pharmacological and nutraceutical agents for the treatment and/or prophylaxis of COVID‐19. For instance, several honeybee products, such as honey, pollen, propolis, royal jelly, beeswax, and bee venom, have shown potent antiviral activity against pathogens that cause severe respiratory syndromes, including those caused by human coronaviruses. In addition, the benefits of these natural products to the immune system are remarkable, and many of them are involved in the induction of antibody production, maturation of immune cells, and stimulation of the innate and adaptive immune responses. Thus, in the absence of specific antivirals against SARS‐CoV‐2, apitherapy could offer one hope toward mitigating some of the risks associated with COVID‐19.

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          A Novel Coronavirus from Patients with Pneumonia in China, 2019

          Summary In December 2019, a cluster of patients with pneumonia of unknown cause was linked to a seafood wholesale market in Wuhan, China. A previously unknown betacoronavirus was discovered through the use of unbiased sequencing in samples from patients with pneumonia. Human airway epithelial cells were used to isolate a novel coronavirus, named 2019-nCoV, which formed a clade within the subgenus sarbecovirus, Orthocoronavirinae subfamily. Different from both MERS-CoV and SARS-CoV, 2019-nCoV is the seventh member of the family of coronaviruses that infect humans. Enhanced surveillance and further investigation are ongoing. (Funded by the National Key Research and Development Program of China and the National Major Project for Control and Prevention of Infectious Disease in China.)
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            Safety, tolerability, and immunogenicity of a recombinant adenovirus type-5 vectored COVID-19 vaccine: a dose-escalation, open-label, non-randomised, first-in-human trial

            Summary Background A vaccine to protect against COVID-19 is urgently needed. We aimed to assess the safety, tolerability, and immunogenicity of a recombinant adenovirus type-5 (Ad5) vectored COVID-19 vaccine expressing the spike glycoprotein of a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) strain. Methods We did a dose-escalation, single-centre, open-label, non-randomised, phase 1 trial of an Ad5 vectored COVID-19 vaccine in Wuhan, China. Healthy adults aged between 18 and 60 years were sequentially enrolled and allocated to one of three dose groups (5 × 1010, 1 × 1011, and 1·5 × 1011 viral particles) to receive an intramuscular injection of vaccine. The primary outcome was adverse events in the 7 days post-vaccination. Safety was assessed over 28 days post-vaccination. Specific antibodies were measured with ELISA, and the neutralising antibody responses induced by vaccination were detected with SARS-CoV-2 virus neutralisation and pseudovirus neutralisation tests. T-cell responses were assessed by enzyme-linked immunospot and flow-cytometry assays. This study is registered with ClinicalTrials.gov, NCT04313127. Findings Between March 16 and March 27, 2020, we screened 195 individuals for eligibility. Of them, 108 participants (51% male, 49% female; mean age 36·3 years) were recruited and received the low dose (n=36), middle dose (n=36), or high dose (n=36) of the vaccine. All enrolled participants were included in the analysis. At least one adverse reaction within the first 7 days after the vaccination was reported in 30 (83%) participants in the low dose group, 30 (83%) participants in the middle dose group, and 27 (75%) participants in the high dose group. The most common injection site adverse reaction was pain, which was reported in 58 (54%) vaccine recipients, and the most commonly reported systematic adverse reactions were fever (50 [46%]), fatigue (47 [44%]), headache (42 [39%]), and muscle pain (18 [17%]. Most adverse reactions that were reported in all dose groups were mild or moderate in severity. No serious adverse event was noted within 28 days post-vaccination. ELISA antibodies and neutralising antibodies increased significantly at day 14, and peaked 28 days post-vaccination. Specific T-cell response peaked at day 14 post-vaccination. Interpretation The Ad5 vectored COVID-19 vaccine is tolerable and immunogenic at 28 days post-vaccination. Humoral responses against SARS-CoV-2 peaked at day 28 post-vaccination in healthy adults, and rapid specific T-cell responses were noted from day 14 post-vaccination. Our findings suggest that the Ad5 vectored COVID-19 vaccine warrants further investigation. Funding National Key R&D Program of China, National Science and Technology Major Project, and CanSino Biologics.
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              Co-infections in people with COVID-19: a systematic review and meta-analysis

              Highlights • SARS-CoV-2, the cause of COVID19 disease, has spread globally since late 2019 • Bacterial coinfections associated with mortality in previous influenza pandemics • Proportion of COVID19 patients with bacterial coinfection less than in flu pandemics • Higher proportion of critically-ill with bacterial coinfections than in mixed setting • Bacterial co-pathogen profiles different to those in influenza co-infections • Fungal coinfection diagnosis difficult so high level suspicion in critically-ill
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                Author and article information

                Contributors
                williamgustavofarmacia@hotmail.com
                Journal
                Phytother Res
                Phytother Res
                10.1002/(ISSN)1099-1573
                PTR
                Phytotherapy Research
                John Wiley & Sons, Ltd. (Chichester, UK )
                0951-418X
                1099-1573
                18 September 2020
                : 10.1002/ptr.6872
                Affiliations
                [ 1 ] Epidemiological, Economic and Pharmacological Studies of Arboviruses (EEPIFARBO) Marabá Brazil
                [ 2 ] Department of Clinical Analyses and Toxicology, Pharmacy School Federal University of Minas Gerais (UFMG) Belo Horizonte Brazil
                [ 3 ] Department of Research and Development Ezequiel Dias Foundation (FUNED) Belo Horizonte Minas Gerais Brazil
                [ 4 ] Department of Health Sciences Carleton University Ottawa Ontario Canada
                Author notes
                [*] [* ] Correspondence

                William G. Lima, Faculdade de Farmácia, Campus Pampulha, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.

                Email: williamgustavofarmacia@ 123456hotmail.com

                Author information
                https://orcid.org/0000-0001-8946-9363
                https://orcid.org/0000-0003-2794-5680
                https://orcid.org/0000-0002-5134-719X
                Article
                PTR6872
                10.1002/ptr.6872
                7536959
                32945590
                b6e70ab6-3fb0-40b6-bfa6-f811a231776a
                © 2020 John Wiley & Sons Ltd

                This article is being made freely available through PubMed Central as part of the COVID-19 public health emergency response. It can be used for unrestricted research re-use and analysis in any form or by any means with acknowledgement of the original source, for the duration of the public health emergency.

                History
                : 07 June 2020
                : 13 August 2020
                : 24 August 2020
                Page count
                Figures: 1, Tables: 2, Pages: 8, Words: 7680
                Categories
                Review
                Reviews
                Custom metadata
                2.0
                corrected-proof
                Converter:WILEY_ML3GV2_TO_JATSPMC version:5.9.2 mode:remove_FC converted:06.10.2020

                Pharmacology & Pharmaceutical medicine
                antiviral,bee venom,beeswax,covid‐19,honey,honeybees,pollen,propolis,royal jelly

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