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Akinsemolu AA, Onyeaka H, Odion S, Adebanjo I. Exploring Bacillus subtilis: Ecology, biotechnological applications, and future prospects. J Basic Microbiol 2024; 64:e2300614. [PMID: 38507723 DOI: 10.1002/jobm.202300614] [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: 10/17/2023] [Revised: 01/28/2024] [Accepted: 02/17/2024] [Indexed: 03/22/2024]
Abstract
From its early identification by Christian Gottfried Ehrenberg to its current prominence in scientific research, Bacillus subtilis (B. subtilis) has emerged as a foundational model organism in microbiology. This comprehensive review delves deep into its genetic, physiological, and biochemical intricacies, revealing a sophisticated cellular blueprint. With the incorporation of advanced techniques such as clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 9 and integrative computational methodologies, the potential applications of B. subtilis span diverse sectors. These encompass its significant contributions to biotechnology, agriculture, and medical fields and its potential for aiding environmental cleanup efforts. Yet, as we move forward, we must grapple with concerns related to safety, ethics, and the practical implementation of our lab findings in everyday scenarios. As our understanding of B. subtilis deepens, it is evident that its contributions will be central to pioneering sustainable solutions for global challenges in the years to come.
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Affiliation(s)
- Adenike A Akinsemolu
- School of Chemical Engineering, University of Birmingham, Birmingham, UK
- The Green Microbiology Lab, University of Birmingham, Birmingham, UK
| | - Helen Onyeaka
- School of Chemical Engineering, University of Birmingham, Birmingham, UK
- The Green Microbiology Lab, University of Birmingham, Birmingham, UK
| | - Samuel Odion
- The Green Microbiology Lab, University of Birmingham, Birmingham, UK
- The Green Institute, Ondo, Ondo State, Nigeria
| | - Idris Adebanjo
- The Green Microbiology Lab, University of Birmingham, Birmingham, UK
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2
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Dini S, Bekhit AEDA, Roohinejad S, Vale JM, Agyei D. The Physicochemical and Functional Properties of Biosurfactants: A Review. Molecules 2024; 29:2544. [PMID: 38893420 PMCID: PMC11173842 DOI: 10.3390/molecules29112544] [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: 04/05/2024] [Revised: 05/20/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Surfactants, also known as surface-active agents, have emerged as an important class of compounds with a wide range of applications. However, the use of chemical-derived surfactants must be restricted due to their potential adverse impact on the ecosystem and the health of human and other living organisms. In the past few years, there has been a growing inclination towards natural-derived alternatives, particularly microbial surfactants, as substitutes for synthetic or chemical-based counterparts. Microbial biosurfactants are abundantly found in bacterial species, predominantly Bacillus spp. and Pseudomonas spp. The chemical structures of biosurfactants involve the complexation of lipids with carbohydrates (glycolipoproteins and glycolipids), peptides (lipopeptides), and phosphates (phospholipids). Lipopeptides, in particular, have been the subject of extensive research due to their versatile properties, including emulsifying, antimicrobial, anticancer, and anti-inflammatory properties. This review provides an update on research progress in the classification of surfactants. Furthermore, it explores various bacterial biosurfactants and their functionalities, along with their advantages over synthetic surfactants. Finally, the potential applications of these biosurfactants in many industries and insights into future research directions are discussed.
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Affiliation(s)
- Salome Dini
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand; (S.D.); (A.E.-D.A.B.)
| | - Alaa El-Din A. Bekhit
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand; (S.D.); (A.E.-D.A.B.)
| | - Shahin Roohinejad
- Research and Development Division, Zoom Essence Inc., 1131 Victory Place, Hebron, KY 41048, USA (J.M.V.)
| | - Jim M. Vale
- Research and Development Division, Zoom Essence Inc., 1131 Victory Place, Hebron, KY 41048, USA (J.M.V.)
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand; (S.D.); (A.E.-D.A.B.)
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3
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Ceresa C, Fracchia L, Sansotera AC, De Rienzo MAD, Banat IM. Harnessing the Potential of Biosurfactants for Biomedical and Pharmaceutical Applications. Pharmaceutics 2023; 15:2156. [PMID: 37631370 PMCID: PMC10457971 DOI: 10.3390/pharmaceutics15082156] [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: 07/17/2023] [Revised: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Biosurfactants (BSs) are microbial compounds that have emerged as potential alternatives to chemical surfactants due to their multifunctional properties, sustainability and biodegradability. Owing to their amphipathic nature and distinctive structural arrangement, biosurfactants exhibit a range of physicochemical properties, including excellent surface activity, efficient critical micelle concentration, humectant properties, foaming and cleaning abilities and the capacity to form microemulsions. Furthermore, numerous biosurfactants display additional biological characteristics, such as antibacterial, antifungal and antiviral effects, and antioxidant, anticancer and immunomodulatory activities. Over the past two decades, numerous studies have explored their potential applications, including pharmaceuticals, cosmetics, antimicrobial and antibiofilm agents, wound healing, anticancer treatments, immune system modulators and drug/gene carriers. These applications are particularly important in addressing challenges such as antimicrobial resistance and biofilm formations in clinical, hygiene and therapeutic settings. They can also serve as coating agents for surfaces, enabling antiadhesive, suppression, or eradication strategies. Not least importantly, biosurfactants have shown compatibility with various drug formulations, including nanoparticles, liposomes, micro- and nanoemulsions and hydrogels, improving drug solubility, stability and bioavailability, and enabling a targeted and controlled drug release. These qualities make biosurfactants promising candidates for the development of next-generation antimicrobial, antibiofilm, anticancer, wound-healing, immunomodulating, drug or gene delivery agents, as well as adjuvants to other antibiotics. Analysing the most recent literature, this review aims to update the present understanding, highlight emerging trends, and identify promising directions and advancements in the utilization of biosurfactants within the pharmaceutical and biomedical fields.
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Affiliation(s)
- Chiara Ceresa
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (L.F.); (A.C.S.)
| | - Letizia Fracchia
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (L.F.); (A.C.S.)
| | - Andrea Chiara Sansotera
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (L.F.); (A.C.S.)
| | | | - Ibrahim M. Banat
- Pharmaceutical Science Research Group, Biomedical Science Research Institute, Ulster University, Coleraine BT52 1SA, UK
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Mehanni MM, Gadow SI, Alshammari FA, Modafer Y, Ghanem KZ, El-Tahtawi NF, El-Homosy RF, Hesham AEL. Antibiotic-resistant bacteria in hospital wastewater treatment plant effluent and the possible consequences of its reuse in agricultural irrigation. Front Microbiol 2023; 14:1141383. [PMID: 37143530 PMCID: PMC10153669 DOI: 10.3389/fmicb.2023.1141383] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/20/2023] [Indexed: 05/06/2023] Open
Abstract
Wastewater from hospitals should be monitored precisely and treated properly before discharge and reuse to avoid epidemic and pandemic complications, as it contains hazardous pollutants for the ecosystem. Antibiotic residues in treated hospital wastewater effluents constitute a major environmental concern since they resist various wastewater treatment processes. The emergence and spread of multi-drug-resistant bacteria, that cause public health problems, are therefore always a major concern. The aims and objectives of this study were mainly to characterize the chemical and microbial properties of the hospital effluent of wastewater treatment plant (WWTP) before discharge to the environment. Special attention was paid to the presence of multiple resistant bacteria and the effects of hospital effluent reuse in irrigation on zucchini as an economically important plant. The risk of cell-free DNA carrying antibiotic resistance genes contained in the hospital effluent as a long-lasting hazard had been discussed. In this study, 21 bacterial strains were isolated from the effluent of a hospital WWTP. Isolated bacteria were evaluated for multi-drug resistance ability against 5 antibiotics (Tetracycline, Ampicillin, Amoxicillin, Chloramphenicol, and Erythromycin) at a concentration of 25 ppm. Out of them, three isolates (AH-03, AH-07, and AH-13) were selected because they recorded the highest growth in presence of tested antibiotics. Selected isolates were identified using 16S rRNA gene sequence homology as Staphylococcus haemolyticus (AH-03), Enterococcus faecalis (AH-07), and Escherichia coli (AH-13). Their susceptibility to ascending concentrations of tested antibiotics indicated that they were all susceptible at a concentration above 50 ppm. Results of the greenhouse experiment regarding the effect of hospital WWTP effluent reuse on zucchini plant fresh weights compared to that irrigated with fresh water indicated that the former recorded a limited increase in total fresh weights (6.2 g and 5.3 g/plant, respectively). Our results demonstrated the low impact of the reuse of Hospital WWTP effluent in agriculture irrigation compared to its greater risk in transferring multiple antibiotic bacteria and antibiotic resistance genes to soil bacteria through natural transformation.
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Affiliation(s)
- Magda M. Mehanni
- Department of Botany and Microbiology, Faculty of Science, Minia University, Minya, Egypt
| | - Samir I. Gadow
- Department of Agricultural Microbiology, Agriculture and Biology Research Institute, National Research Centre, Cairo, Egypt
| | - Fahdah Ayed Alshammari
- Department of Biology, Faculty of Science and Arts-RAFHA, Northrn Border University, Arar, Saudi Arabia
| | - Yosra Modafer
- Department of Biology, College of Science, Jazan University, Jazan, Saudi Arabia
| | - Kholoud Z. Ghanem
- Department of Biological Sciences, College of Science and Humanities, Shaqra University, Shaqra, Saudi Arabia
| | - Noha Fathy El-Tahtawi
- Department of Biology, College of Science and Arts, Shaqra University, Shaqra, Saudi Arabia
| | - Rania F. El-Homosy
- Department of Genetics, Faculty of Agriculture, Assiut University, Assiut, Egypt
| | - Abd El-Latif Hesham
- Genetics Department, Faculty of Agriculture, Beni-Suef University, Beni-Suef, Egypt
- *Correspondence: Abd El-Latif Hesham,
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A Systematic Review on Biosurfactants Contribution to the Transition to a Circular Economy. Processes (Basel) 2022. [DOI: 10.3390/pr10122647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Since they are more environmentally acceptable than their chemically synthesized counterparts, biosurfactants are used in a wide range of environmental applications. However, less research has been done on biosurfactants within the context of the circular economy, despite their theoretical potential to fulfill a number of circular economy ambitions, including closing the consumption loop, regenerating natural systems, and maintaining resource value within the system. Hence, the main objective of this review is to identify and analyze the contributions of biosurfactants to the implementation of the circular economy. A final sample of 30 papers from the Web of Science database was examined. We identified five broad categories of contributions: waste stream-derived production, combating food waste, strengthening soil health, and improving the efficiency of water resources. We concluded that, while manufacturing biosurfactants from waste streams can reduce production costs, optimizing yield remains a contentious issue that complicates the adoption of biosurfactants into the circular economy framework.
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Li Y, Chen H, Wei L, Wei L. COVID-19 Pandemic and SMEs Performance Decline: The Mediating Role of Management Innovation and Organizational Resilience. Front Public Health 2022; 10:944742. [PMID: 35903388 PMCID: PMC9315063 DOI: 10.3389/fpubh.2022.944742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
It is a major practical problem to find out a pathway for firms to quickly recover from the performance decline in the context of the COVID-19 pandemic and other sudden major crisis in the current academic circles. Based on event system theory and structural adjustment to regain fit model, this paper empirically explores the impact of the COVID-19 pandemic on SMEs performance decline and discusses the management innovation response and organizational resilience mechanism of firms by virtue of the questionnaire survey data of SMEs in Guangdong Science and Technology Park in China. The research results elucidate that the criticality and disruption of the COVID-19 pandemic will not only lead to the SMEs performance decline, but also enable SMEs to carry out management innovation. Moreover, management innovation does not directly curb the SMEs performance decline caused by the COVID-19 pandemic, but indirectly inhibit it by promoting organizational resilience. In other words, the COVID-19 pandemic will indirectly promote organizational resilience through firm management innovation, thereby curbing the SMEs performance decline. A path of management innovation response and organizational resilience to reverse the performance decline can be obtained in the study when SMEs confronting sudden major crisis. Furthermore, the study also expands the application scope of structural adjustment to regain fit model, which provides a useful reference for firm crisis response and sustainable development.
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Hazan S. Microbiome-Based Hypothesis on Ivermectin's Mechanism in COVID-19: Ivermectin Feeds Bifidobacteria to Boost Immunity. Front Microbiol 2022; 13:952321. [PMID: 35898916 PMCID: PMC9309549 DOI: 10.3389/fmicb.2022.952321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/10/2022] [Indexed: 01/24/2023] Open
Abstract
Ivermectin is an anti-parasitic agent that has gained attention as a potential COVID-19 therapeutic. It is a compound of the type Avermectin, which is a fermented by-product of Streptomyces avermitilis. Bifidobacterium is a member of the same phylum as Streptomyces spp., suggesting it may have a symbiotic relation with Streptomyces. Decreased Bifidobacterium levels are observed in COVID-19 susceptibility states, including old age, autoimmune disorder, and obesity. We hypothesize that Ivermectin, as a by-product of Streptomyces fermentation, is capable of feeding Bifidobacterium, thereby possibly preventing against COVID-19 susceptibilities. Moreover, Bifidobacterium may be capable of boosting natural immunity, offering more direct COVID-19 protection. These data concord with our study, as well as others, that show Ivermectin protects against COVID-19.
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Liu K, Zhang X, Hu Y, Chen W, Kong X, Yao P, Cong J, Zuo H, Wang J, Li X, Wei B. What, Where, When and How of COVID-19 Patents Landscape: A Bibliometrics Review. Front Med (Lausanne) 2022; 9:925369. [PMID: 35847804 PMCID: PMC9283760 DOI: 10.3389/fmed.2022.925369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/14/2022] [Indexed: 12/12/2022] Open
Abstract
Two years after COVID-19 came into being, many technologies have been developed to bring highly promising bedside methods to help fight this epidemic disease. However, owing to viral mutation, how far the promise can be realized remains unclear. Patents might act as an additional source of information for informing research and policy and anticipating important future technology developments. A comprehensive study of 3741 COVID-19-related patents (3,543 patent families) worldwide was conducted using the Derwent Innovation database. Descriptive statistics and social network analysis were used in the patent landscape. The number of COVID-19 applications, especially those related to treatment and prevention, continued to rise, accompanied by increases in governmental and academic patent assignees. Although China dominated COVID-19 technologies, this position is worth discussing, especially in terms of the outstanding role of India and the US in the assignee collaboration network as well as the outstanding invention portfolio in Italy. Intellectual property barriers and racist treatment were reduced, as reflected by individual partnerships, transparent commercial licensing and diversified portfolios. Critical technological issues are personalized immunity, traditional Chinese medicine, epidemic prediction, artificial intelligence tools, and nucleic acid detection. Notable challenges include balancing commercial competition and humanitarian interests. The results provide a significant reference for decision-making by researchers, clinicians, policymakers, and investors with an interest in COVID-19 control.
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Affiliation(s)
- Kunmeng Liu
- Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao, China
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
| | - Xiaoming Zhang
- Department of Cardiovascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuanjia Hu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, Macao SAR, China
| | - Weijie Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, Macao SAR, China
| | - Xiangjun Kong
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, Macao SAR, China
| | - Peifen Yao
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, Macao SAR, China
| | - Jinyu Cong
- Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao, China
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
| | - Huali Zuo
- Warshel Institute for Computational Biology, The Chinese University of Hong Kong, Shenzhen, Hong Kong SAR, China
| | - Jian Wang
- Science College, Shandong Jiaotong University, Jinan, China
| | - Xiang Li
- Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao, China
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
| | - Benzheng Wei
- Center for Medical Artificial Intelligence, Shandong University of Traditional Chinese Medicine, Qingdao, China
- Qingdao Academy of Chinese Medical Sciences, Shandong University of Traditional Chinese Medicine, Qingdao, China
- *Correspondence: Benzheng Wei,
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Sung JCC, Lai NCY, Wu KC, Choi MC, Ma CHY, Lin J, Kuok CN, Leong WL, Lam WK, Hamied YK, Lam DMK, Sze ETP, Kwong KWY. Safety and Immunogenicity of Inactivated Bacillus subtilis Spores as a Heterologous Antibody Booster for COVID-19 Vaccines. Vaccines (Basel) 2022; 10:vaccines10071014. [PMID: 35891178 PMCID: PMC9322707 DOI: 10.3390/vaccines10071014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/21/2022] [Accepted: 06/21/2022] [Indexed: 12/04/2022] Open
Abstract
The coronavirus diseases 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections have threatened the world for more than 2 years. Multiple vaccine candidates have been developed and approved for emergency use by specific markets, but multiple doses are required to maintain the antibody level. Preliminary safety and immunogenicity data about an oral dose vaccine candidate using recombinant Bacillus subtilis in healthy adults were reported previously from an investigator-initiated trial in Hong Kong. Additional data are required in order to demonstrate the safety and efficacy of the candidate as a heterologous booster in vaccinated recipients. In an ongoing, placebo-controlled, observer-blinded, fixed dose, investigator-initiated trial conducted in the Macau, we randomly assigned healthy adults, 21 to 62 years of age to receive either placebo or a Bacillus subtilis oral dose vaccine candidate, which expressed the spike protein receptor binding domain of SARS-CoV-2 on the spore surface. The primary outcome was safety (e.g., local and systemic reactions and adverse events); immunogenicity was a secondary outcome. For both the active vaccine and placebo, participants received three courses in three consecutive days. A total of 16 participants underwent randomization: 9 participants received vaccine and 7 received placebo. No observable local or systemic side-effect was reported. In both younger and older adults receiving placebo, the neutralizing antibody levels were gradually declining, whereas the participants receiving the antibody booster showed an increase in neutralizing antibody level.
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Affiliation(s)
- Johnny Chun-Chau Sung
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
- Oristry BioTech (HK) Limited, Hong Kong, China
- Meserna Therapeutic (HK) Limited, Hong Kong, China
- L&L Immunotherapy Company Limited, Hong Kong, China;
| | - Nelson Cheuk-Yin Lai
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
- Oristry BioTech (HK) Limited, Hong Kong, China
- Meserna Therapeutic (HK) Limited, Hong Kong, China
- L&L Immunotherapy Company Limited, Hong Kong, China;
| | - Kam-Chau Wu
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
| | - Man-Chung Choi
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
| | - Chloe Ho-Yi Ma
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
| | - Jayman Lin
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
- L&L Immunotherapy Company Limited, Hong Kong, China;
| | - Cheong-Nang Kuok
- Macao Greater Bay Area Association of Healthcare Providers, Macau 999078, China; (C.-N.K.); (W.-L.L.); (W.-K.L.)
| | - Wai-Leng Leong
- Macao Greater Bay Area Association of Healthcare Providers, Macau 999078, China; (C.-N.K.); (W.-L.L.); (W.-K.L.)
| | - Weng-Kei Lam
- Macao Greater Bay Area Association of Healthcare Providers, Macau 999078, China; (C.-N.K.); (W.-L.L.); (W.-K.L.)
| | | | - Dominic Man-Kit Lam
- L&L Immunotherapy Company Limited, Hong Kong, China;
- Torsten Wiesel International Research Institute, Sichuan University, Chengdu 610064, China
| | - Eric Tung-Po Sze
- School of Science and Technology, Hong Kong Metropolitan University, Hong Kong, China;
| | - Keith Wai-Yeung Kwong
- Research Department, DreamTec Cytokines Limited, Hong Kong, China; (J.C.-C.S.); (N.C.-Y.L.); (K.-C.W.); (M.-C.C.); (C.H.-Y.M.); (J.L.)
- Oristry BioTech (HK) Limited, Hong Kong, China
- Meserna Therapeutic (HK) Limited, Hong Kong, China
- L&L Immunotherapy Company Limited, Hong Kong, China;
- Correspondence: ; Tel.: +852-370-52355
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Shao W, Ye Q. SARS-CoV-2 Spreads Globally Through the Object-to-Human Transmission of Cross-Border Logistics. Front Microbiol 2022; 13:918957. [PMID: 35814665 PMCID: PMC9260597 DOI: 10.3389/fmicb.2022.918957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/01/2022] [Indexed: 11/20/2022] Open
Abstract
With globalization, the demand for transnational logistics is growing rapidly. However, the object-to-human transmission of SARS-CoV-2 has been reported in transnational logistics production, transportation, storage, sales, and consumption. Every link of transnational logistics has the risk of spreading the COVID-19 pandemic. It is concluded that low temperatures, dry environments, and smooth surfaces are conducive to the long-term survival of SARS-CoV-2 on the surface of transnational goods. Epidemiological investigation and big data analysis show that the object-to-human transmission route of direct contact with contaminated cold chain goods plays a key role in the outbreak and transmission of the COVID-19 pandemic. This may be the most crucial reason for the global spread of SARS-CoV-2 caused by transnational logistics. It is an effective way to prevent the spread of SARS-CoV-2 from object-to-human through transnational logistics by strengthening the management of employees in all aspects of transnational logistics, carrying out comprehensive disinfection and quarantine of and guiding consumers to handle transnational goods properly.
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Affiliation(s)
- Wenxia Shao
- Department of Clinical Laboratory, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qing Ye
- Department of Clinical Laboratory, The Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children’s Regional Medical Center, Hangzhou, China
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Rezai MS, Ahangarkani F, Hill A, Ellis L, Mirchandani M, Davoudi A, Eslami G, Roozbeh F, Babamahmoodi F, Rouhani N, Alikhani A, Najafi N, Ghasemian R, Mehravaran H, Hajialibeig A, Navaeifar MR, Shahbaznejad L, Rahimzadeh G, Saeedi M, Alizadeh-Navai R, Moosazadeh M, Saeedi S, Razavi-Amoli SK, Rezai S, Rostami-Maskopaee F, Hosseinzadeh F, Movahedi FS, Markowitz JS, Valadan R. Non-effectiveness of Ivermectin on Inpatients and Outpatients With COVID-19; Results of Two Randomized, Double-Blinded, Placebo-Controlled Clinical Trials. Front Med (Lausanne) 2022; 9:919708. [PMID: 35783616 PMCID: PMC9244711 DOI: 10.3389/fmed.2022.919708] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/30/2022] [Indexed: 01/04/2023] Open
Abstract
Background Ivermectin which was widely considered as a potential treatment for COVID-19, showed uncertain clinical benefit in many clinical trials. Performing large-scale clinical trials to evaluate the effectiveness of this drug in the midst of the pandemic, while difficult, has been urgently needed. Methods We performed two large multicenter randomized, double-blind, placebo-controlled clinical trials evaluating the effectiveness of ivermectin in treating inpatients and outpatients with COVID-19 infection. The intervention group received ivermectin, 0.4mg/kg of body weight per day for 3 days. In the control group, placebo tablets were used for 3 days. Results Data for 609 inpatients and 549 outpatients were analyzed. In hospitalized patients, complete recovery was significantly higher in the ivermectin group (37%) compared to placebo group (28%; RR, 1.32 [95% CI, 1.04–1.66]; p-value = 0.02). On the other hand, the length of hospital stay was significantly longer in the ivermectin group with a mean of 7.98 ± 4.4 days compared to the placebo receiving group with a mean of 7.16 ± 3.2 days (RR, 0.80 [95% CI, 0.15–1.45]; p-value = 0.02). In outpatients, the mean duration of fever was significantly shorter (2.02 ± 0.11 days) in the ivermectin group versus (2.41 ± 0.13 days) placebo group with p value = 0.020. On the day seventh of treatment, fever (p-value = 0.040), cough (p-value = 0.019), and weakness (p-value = 0.002) were significantly higher in the placebo group compared to the ivermectin group. Among all outpatients, 7% in ivermectin group and 5% in placebo group needed to be hospitalized (RR, 1.36 [95% CI, 0.65–2.84]; p-value = 0.41). Also, the result of RT-PCR on day five after treatment was negative for 26% of patients in the ivermectin group versus 32% in the placebo group (RR, 0.81 [95% CI, 0.60–1.09]; p-value = 0.16). Conclusion Our data showed, ivermectin, compared with placebo, did not have a significant potential effect on clinical improvement, reduced admission in ICU, need for invasive ventilation, and death in hospitalized patients; likewise, no evidence was found to support the prescription of ivermectin on recovery, reduced hospitalization and increased negative RT-PCR assay for SARS-CoV-2 5 days after treatment in outpatients. Our findings do not support the use of ivermectin to treat mild to severe forms of COVID-19. Clinical Trial Registration www.irct.ir IRCT20111224008507N5 and IRCT20111224008507N4.
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Affiliation(s)
- Mohammad Sadegh Rezai
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
- *Correspondence: Mohammad Sadegh Rezai,
| | - Fatemeh Ahangarkani
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Andrew Hill
- Department of Pharmacology and Therapeutics, Liverpool University, Liverpool, United Kingdom
| | - Leah Ellis
- Faculty of Medicine, School of Public Health, Imperial College London, London, United Kingdom
| | - Manya Mirchandani
- Faculty of Medicine, School of Public Health, Imperial College London, London, United Kingdom
| | - Alireza Davoudi
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Gohar Eslami
- Department of Clinical Pharmacy, Faculty of Pharmacy, Cardiovascular Research Center, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Roozbeh
- Gastrointestinal Cancer Research Center, Non-communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Farhang Babamahmoodi
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Nima Rouhani
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ahmad Alikhani
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Narges Najafi
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Roya Ghasemian
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hossein Mehravaran
- Department of Internal Medicine, Pulmonary and Critical Care Division, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Azin Hajialibeig
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Reza Navaeifar
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Leila Shahbaznejad
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Golnar Rahimzadeh
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Majid Saeedi
- Department of Pharmaceutics, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Reza Alizadeh-Navai
- Gastrointestinal Cancer Research Center, Non-communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mahmood Moosazadeh
- Gastrointestinal Cancer Research Center, Non-communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Shahab Saeedi
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - Shaghayegh Rezai
- Department of Microbiology and Virology, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fereshteh Rostami-Maskopaee
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Fatemeh Hosseinzadeh
- Pediatric Infectious Diseases Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | | | - John S. Markowitz
- Department of Pharmacotherapy and Translational Research, Center for Pharmacogenomics and Precision Medicine, University of Florida, Gainesville, FL, United States
| | - Reza Valadan
- Department of Immunology and Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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Mironenko A, Holubka O, Radchenko L, Zakharchuk I, Teteriuk N. VIRULICIDAL EFFECT OF THE PROBIOTIC DRUG "SVITECO-MULTI" ON POLIOVIRUS TYPE 1 AND INFLUENZA VIRUS. BULLETIN OF TARAS SHEVCHENKO NATIONAL UNIVERSITY OF KYIV. SERIES: BIOLOGY 2022. [DOI: 10.17721/1728.2748.2022.91.24-27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The experimental work shows the antiviral activity of the probiotic drug "Sviteco-Multi" which contains bacteria of the genus Bacillusin model system in cell culturesMDCKandHEp-2, against influenza A (H1N1)pdm2009 virus and vaccine poliovirus type 1, which allows to recommend it for use, in particular, as an alternative to traditional antiviral disinfectants.
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