1
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Xiao J, Li P, Zhang X, Wang X. Study on Preparation of Regenerated Cellulose Fiber from Biomass Based on Mixed Solvents. Materials (Basel) 2024; 17:819. [PMID: 38399070 PMCID: PMC10889912 DOI: 10.3390/ma17040819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 01/26/2024] [Accepted: 02/03/2024] [Indexed: 02/25/2024]
Abstract
In this study, Arundo donax Linnaeus was utilized as the biomass and a TH/DS (Tetra-n-butylammonium hydroxide/Dimethyl sulfoxide, C16H37NO/C2H6OS) system was employed to dissolve biomass cellulose. The optimal process for the preparation of Arundo donax L. biomass regenerated cellulose fiber was determined through process optimization. The physical properties and antimicrobial performance of the resulting products were analyzed. The results demonstrated that the physical indicators of biomass regenerated cellulose fiber, prepared from Arundo donax L. cellulose, met the requirements of the standard for Viscose Filament (Dry breaking strength ≥ 1.65 CN/dtex, Elongation at dry breaking 15.5-26.0%, and Dry elongation CV value ≤ 10.0%). Additionally, excellent antimicrobial properties were exhibited by the biomass regenerated cellulose fiber developed in this study, with antibacterial rates against Staphylococcus aureus and other three strain indexes meeting the Viscose Filament standards. Furthermore, high antiviral activity of 99.99% against H1N1 and H3N2 strains of influenza A virus was observed in the experimental samples, indicating a remarkable antiviral effect. Valuable references for the comprehensive utilization of Arundo donax L. biomass resources are provided by this research.
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Affiliation(s)
- Junjiang Xiao
- College of Material Science and Art Design, Inner Mongolia Agricultural University, Hohhot 010018, China;
| | - Pengcheng Li
- Central Grain Reserve Qingdao Depot Co., Ltd., Qingdao 266109, China;
| | - Xiaotao Zhang
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China
- Inner Mongolia Key Laboratory of Sandy Shrubs Fibrosis and Energy Development and Utilization, Hohhot 010018, China
| | - Ximing Wang
- College of Material Science and Art Design, Inner Mongolia Agricultural University, Hohhot 010018, China;
- Inner Mongolia Key Laboratory of Sandy Shrubs Fibrosis and Energy Development and Utilization, Hohhot 010018, China
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2
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Šudomová M, Hassan STS. Flavonoids with Anti-Herpes Simplex Virus Properties: Deciphering Their Mechanisms in Disrupting the Viral Life Cycle. Viruses 2023; 15:2340. [PMID: 38140581 PMCID: PMC10748012 DOI: 10.3390/v15122340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023] Open
Abstract
The herpes simplex virus (HSV) is a double-stranded DNA human virus that causes persistent infections with recurrent outbreaks. HSV exists in two forms: HSV-1, responsible for oral herpes, and HSV-2, primarily causing genital herpes. Both types can lead to significant complications, including neurological issues. Conventional treatment, involving acyclovir and its derivatives, faces challenges due to drug resistance. This underscores the imperative for continual research and development of new drugs, with a particular emphasis on exploring the potential of natural antivirals. Flavonoids have demonstrated promise in combating various viruses, including those within the herpesvirus family. This review, delving into recent studies, reveals the intricate mechanisms by which flavonoids decode their antiviral capabilities against HSV. By disrupting key stages of the viral life cycle, such as attachment to host cells, entry, DNA replication, latency, and reactivation, flavonoids emerge as formidable contenders in the ongoing battle against HSV infections.
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Affiliation(s)
- Miroslava Šudomová
- Museum of Literature in Moravia, Klášter 1, 664 61 Rajhrad, Czech Republic;
| | - Sherif T. S. Hassan
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
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3
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Woźniak-Budych MJ, Staszak K, Staszak M. Copper and Copper-Based Nanoparticles in Medicine-Perspectives and Challenges. Molecules 2023; 28:6687. [PMID: 37764463 PMCID: PMC10536384 DOI: 10.3390/molecules28186687] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/16/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
Nanotechnology has ushered in a new era of medical innovation, offering unique solutions to longstanding healthcare challenges. Among nanomaterials, copper and copper oxide nanoparticles stand out as promising candidates for a multitude of medical applications. This article aims to provide contemporary insights into the perspectives and challenges regarding the use of copper and copper oxide nanoparticles in medicine. It summarises the biomedical potential of copper-based nanoformulations, including the progress of early-stage research, to evaluate and mitigate the potential toxicity of copper nanomaterials. The discussion covers the challenges and prospects of copper-based nanomaterials in the context of their successful clinical translation. The article also addresses safety concerns, emphasizing the need for toxicity assessments of nanomedicines. However, attention is needed to solve the current challenges such as biocompatibility and controlled release. Ongoing research and collaborative efforts to overcome these obstacles are discussed. This analysis aims to provide guidance for the safe and effective integration of copper nanoparticles into clinical practice, thereby advancing their medical applications. This analysis of recent literature has highlighted the multifaceted challenges and prospects associated with copper-based nanomaterials in the context of their translation from the laboratory to the clinic. In particular, biocompatibility remains a formidable hurdle, requiring innovative solutions to ensure the seamless integration into the human body. Additionally, achieving the controlled release of therapeutic agents from copper nanoparticles poses a complex challenge that requires meticulous engineering and precise design.
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Affiliation(s)
- Marta J. Woźniak-Budych
- NanoBioMedical Centre, Adam Mickiewicz University in Poznan, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Katarzyna Staszak
- Institute of Technology and Chemical Engineering, Poznan University of Technology, 60-965 Poznan, Poland; (K.S.); (M.S.)
| | - Maciej Staszak
- Institute of Technology and Chemical Engineering, Poznan University of Technology, 60-965 Poznan, Poland; (K.S.); (M.S.)
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4
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Matveev AL, Pyankov OV, Khlusevich YA, Tyazhelkova OV, Emelyanova LA, Timofeeva AM, Shipovalov AV, Chechushkov AV, Zaitseva NS, Kudrov GA, Yusubalieva GM, Yussubaliyeva SM, Zhukova OA, Tikunov AY, Baklaushev VP, Sedykh SE, Lifshits GI, Tikunova NV. Novel B-Cell Epitopes of Non-Neutralizing Antibodies in the Receptor-Binding Domain of the SARS-CoV-2 S-Protein with Different Effects on the Severity of COVID-19. Biochemistry (Mosc) 2023; 88:1205-1214. [PMID: 37770389 DOI: 10.1134/s000629792309002x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/14/2023] [Accepted: 08/18/2023] [Indexed: 09/30/2023]
Abstract
Antibodies against the receptor-binding domain of the SARS-CoV-2 spike protein (RBD S-protein) contribute significantly to the humoral immune response during coronavirus infection (COVID-19) and after vaccination. The main focus of the studies of the RBD epitope composition is usually concentrated on the epitopes recognized by the virus-neutralizing antibodies. The role of antibodies that bind to RBD but do not neutralize SARS-CoV-2 remains unclear. In this study, immunochemical properties of the two mouse monoclonal antibodies (mAbs), RS17 and S11, against the RBD were examined. Both mAbs exhibited high affinity to RBD, but they did not neutralize the virus. The epitopes of these mAbs were mapped using phage display: the epitope recognized by the mAb RS17 is located at the N-terminal site of RBD (348-SVYAVNRKRIS-358); the mAb S11 epitope is inside the receptor-binding motif of RBD (452-YRLFRKSN-459). Three groups of sera were tested for presence of antibodies competing with the non-neutralizing mAbs S11 and RS17: (i) sera from the vaccinated healthy volunteers without history of COVID-19; (ii) sera from the persons who had a mild form of COVID-19; (iii) sera from the persons who had severe COVID-19. Antibodies competing with the mAb S11 were found in each group of sera with equal frequency, whereas presence of the antibodies competing with the mAb RS17 in the sera was significantly more frequent in the group of sera obtained from the patients recovered from severe COVID-19 indicating that such antibodies are associated with the severity of COVID-19. In conclusion, despite the clear significance of anti-RBD antibodies in the effective immune response against SARS-CoV-2, it is important to analyze their virus-neutralizing activity and to confirm absence of the antibody-mediated enhancement of infection by the anti-RBD antibodies.
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Affiliation(s)
- Andrey L Matveev
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Oleg V Pyankov
- State Research Center of Virology and Biotechnology "VECTOR", Federal Service for the Oversight of Consumer Protection and Welfare, Koltsovo, 630559, Novosibirsk Region, Russia
| | - Yana A Khlusevich
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Olga V Tyazhelkova
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Ljudmila A Emelyanova
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Anna M Timofeeva
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Andrey V Shipovalov
- State Research Center of Virology and Biotechnology "VECTOR", Federal Service for the Oversight of Consumer Protection and Welfare, Koltsovo, 630559, Novosibirsk Region, Russia
| | - Anton V Chechushkov
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | | | - Gleb A Kudrov
- State Research Center of Virology and Biotechnology "VECTOR", Federal Service for the Oversight of Consumer Protection and Welfare, Koltsovo, 630559, Novosibirsk Region, Russia
| | - Gaukhar M Yusubalieva
- Federal Research and Clinical Center of Specialized Medical Care and Medical Technologies FMBA of Russia, Moscow, 115682, Russia
- Federal Center of Brain Research and Neurotechnologies, FMBA of Russia, Moscow, 117513, Russia
| | | | - Oxana A Zhukova
- Federal Research and Clinical Center of Specialized Medical Care and Medical Technologies FMBA of Russia, Moscow, 115682, Russia
| | - Artem Yu Tikunov
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Vladimir P Baklaushev
- Federal Research and Clinical Center of Specialized Medical Care and Medical Technologies FMBA of Russia, Moscow, 115682, Russia
- Pulmonology Research Institute FMBA of Russia, Moscow, 115682, Russia
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | | | - Galina I Lifshits
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
| | - Nina V Tikunova
- Federal State Public Scientific Institution "Institute of Chemical Biology and Fundamental Medicine", Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
- Novosibirsk State University, Novosibirsk, 630090, Russia
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5
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Atanasova-Panchevska N, Stojchevski R, Hadzi-Petrushev N, Mitrokhin V, Avtanski D, Mladenov M. Antibacterial and Antiviral Properties of Tetrahydrocurcumin-Based Formulations: An Overview of Their Metabolism in Different Microbiotic Compartments. Life (Basel) 2022; 12:1708. [PMID: 36362863 PMCID: PMC9696410 DOI: 10.3390/life12111708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 08/29/2023] Open
Abstract
In this review, the basic metabolic characteristics of the curcuminoid tetrahydrocurcumin (THC) at the level of the intestinal microbiota were addressed. Special attention was given to the bactericidal effects of one of the THC-phospholipid formulations, which has shown greater bioavailability and activity than pure THC. Similarly, quinoline derivatives and amino acid conjugates of THC have also shown antibacterial effects in the gut. The microbial effect of pure THC is particularly pronounced in pathophysiological conditions related to the function of the intestinal microbiota, such as type II diabetes. Furthermore, the antiviral characteristics of Cur compared to those of THC are more pronounced in preventing the influenza virus. In the case of HIV infections, the new microemulsion gel formulations of THC possess high retention during preventive application in the vagina and, at the same time, do not disturb the vaginal microbiota, which is critical in maintaining low vaginal pH. Based on the reviewed literature, finding new formulations of THC which can increase its bioavailability and activity and emphasize its antibacterial and antiviral characteristics could be very important. Applying such THC formulations in preventing and treating ailments related to the microbiotic compartments in the body would be beneficial from a medical point of view.
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Affiliation(s)
- Natalija Atanasova-Panchevska
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, P.O. Box 162, 1000 Skopje, North Macedonia
| | - Radoslav Stojchevski
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, P.O. Box 162, 1000 Skopje, North Macedonia
- Friedman Diabetes Institute, Lenox Hill Hospital, Northwell Health, 110 E 59th Street, New York, NY 10022, USA
| | - Nikola Hadzi-Petrushev
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, P.O. Box 162, 1000 Skopje, North Macedonia
| | - Vadim Mitrokhin
- Department of Physiology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
| | - Dimiter Avtanski
- Friedman Diabetes Institute, Lenox Hill Hospital, Northwell Health, 110 E 59th Street, New York, NY 10022, USA
| | - Mitko Mladenov
- Faculty of Natural Sciences and Mathematics, Institute of Biology, Ss. Cyril and Methodius University, P.O. Box 162, 1000 Skopje, North Macedonia
- Department of Physiology, Pirogov Russian National Research Medical University, Ostrovityanova Street, 1, 117997 Moscow, Russia
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6
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Razavipour M, Gonzalez M, Singh N, Cimenci CE, Chu N, Alarcon EI, Villafuerte J, Jodoin B. Biofilm Inhibition and Antiviral Response of Cold Sprayed and Shot Peened Copper Surfaces: Effect of Surface Morphology and Microstructure. J Therm Spray Technol 2022; 31:130-144. [PMID: 37520908 PMCID: PMC8735887 DOI: 10.1007/s11666-021-01315-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 12/14/2021] [Accepted: 12/19/2021] [Indexed: 08/01/2023]
Abstract
Antibacterial properties of copper against planktonic bacteria population are affected by surface microstructure and topography. However, copper interactions with bacteria in a biofilm state are less studied. This work aims at better understanding the difference in biofilm inhibition of bulk, cold-sprayed, and shot-peened copper surfaces and gaining further insights on the underlying mechanisms using optical and scanning electron microscopy to investigate the topography and microstructure of the surfaces. The biofilm inhibition ability is reported for all surfaces. Results show that the biofilm inhibition performance of cold sprayed copper, while initially better, decreases with time and results in an almost identical performance than as-received copper after 18h incubation time. The shot-peened samples with a rough and ultrafine microstructure demonstrated an enhanced biofilm control, especially at 18 hr. The biofilm control mechanisms were explained by the diffusion rates and concentration of copper ions and the interaction between these ions and the biofilm, while surface topography plays a role in the bacteria attachment at the early planktonic state. Furthermore, the data suggest that surface topography plays a key role in antiviral activity of the materials tested, with a smooth surface being the most efficient. Graphical Abstract
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Affiliation(s)
- Maryam Razavipour
- Cold Spray Research Laboratory, University of Ottawa, Ottawa, ON Canada
| | - Mayte Gonzalez
- Division of Cardiac Surgery, BEaTS Research, University of Ottawa Heart Institute, Ottawa, Ontario Canada
| | - Naveen Singh
- Cold Spray Research Laboratory, University of Ottawa, Ottawa, ON Canada
| | - Cagla Eren Cimenci
- Division of Cardiac Surgery, BEaTS Research, University of Ottawa Heart Institute, Ottawa, Ontario Canada
| | - Nicole Chu
- Division of Cardiac Surgery, BEaTS Research, University of Ottawa Heart Institute, Ottawa, Ontario Canada
| | - Emilio I. Alarcon
- Division of Cardiac Surgery, BEaTS Research, University of Ottawa Heart Institute, Ottawa, Ontario Canada
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario Canada
| | | | - Bertrand Jodoin
- Cold Spray Research Laboratory, University of Ottawa, Ottawa, ON Canada
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7
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Ordon M, Zdanowicz M, Nawrotek P, Stachurska X, Mizielińska M. Polyethylene Films Containing Plant Extracts in the Polymer Matrix as Antibacterial and Antiviral Materials. Int J Mol Sci 2021; 22:13438. [PMID: 34948232 DOI: 10.3390/ijms222413438] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/11/2021] [Accepted: 12/13/2021] [Indexed: 12/21/2022] Open
Abstract
Low density polyethylene (LDPE) films covered with active coatings containing mixtures of rosemary, raspberry, and pomegranate CO2 extracts were found to be active against selected bacterial strains that may extend the shelf life of food products. The coatings also offer antiviral activity, due to their influence on the activity of Φ6 bacteriophage, selected as a surrogate for SARS-CoV-2 particles. The mixture of these extracts could be incorporated into a polymer matrix to obtain a foil with antibacterial and antiviral properties. The initial goal of this work was to obtain active LDPE films containing a mixture of CO2 extracts of the aforementioned plants, incorporated into an LDPE matrix via an extrusion process. The second aim of this study was to demonstrate the antibacterial properties of the active films against Gram-positive and Gram-negative bacteria, and to determine the antiviral effect of the modified material on Φ6 bacteriophage. In addition, an analysis was made on the influence of the active mixture on the polymer physicochemical features, e.g., mechanical and thermal properties, as well as its color and transparency. The results of this research indicated that the LDPE film containing a mixture of raspberry, rosemary, and pomegranate CO2 extracts incorporated into an LDPE matrix inhibited the growth of Staphylococcus aureus. This film was also found to be active against Bacillus subtilis. This modified film did not inhibit the growth of Escherichia coli and Pseudomonas syringae cells; however, their number decreased significantly. The LDPE active film was also found to be active against Φ6 particles, meaning that the film had antiviral properties. The incorporation of the mixture of CO2 extracts into the polymer matrix affected its mechanical properties. It was observed that parameters describing mechanical properties decreased, although did not affect the transition of LDPE significantly. Additionally, the modified film exhibited barrier properties towards UV radiation. Modified PE/CO2 extracts films could be applied as a functional food packaging material with antibacterial and antiviral properties.
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8
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Bimonte S, Forte CA, Cuomo M, Esposito G, Cascella M, Cuomo A. An Overview on the Potential Roles of EGCG in the Treatment of COVID-19 Infection. Drug Des Devel Ther 2021; 15:4447-4454. [PMID: 34737551 PMCID: PMC8560077 DOI: 10.2147/dddt.s314666] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/05/2021] [Indexed: 01/18/2023] Open
Abstract
Coronavirus disease-19 (COVID-19) pandemic is currently ongoing worldwide and causes a lot of deaths in many countries. Although different vaccines for the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection have been developed and are now available, there are no effective antiviral drugs to treat the disease, except for Remdesivir authorized by the US FDA to counteract the emergency. Thus, it can be useful to find alternative therapies based on the employment of natural compounds, with antiviral features, to circumvent SARS-CoV-2 infection. Pre-clinical studies highlighted the antiviral activities of epigallocatechin-3-gallate (EGCG), a catechin primarily found in green tea, against various viruses, including SARS-CoV-2. In this review, we summarize this experimental evidence and highlight the potential use of EGCG as an alternative therapeutic choice for the treatment of SARS-CoV-2 infection.
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Affiliation(s)
- Sabrina Bimonte
- Division of Anesthesia and Pain Medicine, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Naples, Italy
| | - Cira Antonietta Forte
- Division of Anesthesia and Pain Medicine, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Naples, Italy
| | - Massimiliano Cuomo
- S.C. Project Management e Formazione, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Naples, Italy
| | - Gennaro Esposito
- Division of Anesthesia and Pain Medicine, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Naples, Italy
| | - Marco Cascella
- Division of Anesthesia and Pain Medicine, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Naples, Italy
| | - Arturo Cuomo
- Division of Anesthesia and Pain Medicine, Istituto Nazionale Tumori - IRCCS - Fondazione G. Pascale, Naples, Italy
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9
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Lou F, Qin H, He S, Li M, An X, Song L, Tong Y, Fan H. The Benefits of Breastfeeding Still Outweigh the Risks of COVID-19 Transmission. Front Med (Lausanne) 2021; 8:703950. [PMID: 34568367 PMCID: PMC8455845 DOI: 10.3389/fmed.2021.703950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 08/06/2021] [Indexed: 01/04/2023] Open
Affiliation(s)
- Fuxing Lou
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Hongbo Qin
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Shiting He
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Maochen Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Xiaoping An
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Lihua Song
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Yigang Tong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Huahao Fan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
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10
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Chojnacka K, Skrzypczak D, Izydorczyk G, Mikula K, Szopa D, Witek-Krowiak A. Antiviral Properties of Polyphenols from Plants. Foods 2021; 10:foods10102277. [PMID: 34681326 PMCID: PMC8534698 DOI: 10.3390/foods10102277] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/03/2021] [Accepted: 09/21/2021] [Indexed: 02/06/2023] Open
Abstract
Polyphenols are active substances against various types of viral infections. Researchers have characterized methods of how to isolate polyphenols without losing their potential to formulate pharmaceutical products. Researchers have also described mechanisms against common viral infections (i.e., influenza, herpes, hepatitis, rotavirus, coronavirus). Particular compounds have been discussed together with the plants in the biomass in which they occur. Quercetin, gallic acid and epigallocatechin are exemplary compounds that inhibit the growth cycle of viruses. Special attention has been paid to identify plants and polyphenols that can be efficient against coronavirus infections. It has been proven that polyphenols present in the diet and in pharmaceuticals protect us from viral infections and, in case of infection, support the healing process by various mechanisms, i.e., they block the entry into the host cells, inhibit the multiplication of the virus, seal blood vessels and protect against superinfection.
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11
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Dicks LMT, Grobbelaar MJ. Double-Barrel Shotgun: Probiotic Lactic Acid Bacteria with Antiviral Properties Modified to Serve as Vaccines. Microorganisms 2021; 9:1565. [PMID: 34442644 DOI: 10.3390/microorganisms9081565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 12/17/2022] Open
Abstract
Contrary to the general belief that the sole function of probiotics is to keep intestinal microbiota in a balanced state and stimulate the host’s immune response, several studies have shown that certain strains of lactic acid bacteria (LAB) have direct and/or indirect antiviral properties. LAB can stimulate the innate antiviral immune defence system in their host, produce antiviral peptides, and release metabolites that prevent either viral replication or adhesion to cell surfaces. The SARS-CoV (COVID-19) pandemic shifted the world’s interest towards the development of vaccines against viral infections. It is hypothesised that the adherence of SARS-CoV spike proteins to the surface of Bifidobacterium breve could elicit an immune response in its host and trigger the production of antibodies. The question now remains as to whether probiotic LAB could be genetically modified to synthesize viral antigens and serve as vaccines—this concept and the role that LAB play in viral infection are explored in this review.
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12
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Tienaho J, Reshamwala D, Karonen M, Silvan N, Korpela L, Marjomäki V, Sarjala T. Field-Grown and In Vitro Propagated Round-Leaved Sundew ( Drosera rotundifolia L.) Show Differences in Metabolic Profiles and Biological Activities. Molecules 2021; 26:molecules26123581. [PMID: 34208192 PMCID: PMC8230826 DOI: 10.3390/molecules26123581] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/05/2021] [Accepted: 06/09/2021] [Indexed: 12/03/2022] Open
Abstract
Drosera rotundifolia L. is a carnivorous plant used in traditional medicine for its therapeutic properties. Because of its small size, its collection in nature is laborious and different cultivation methods have been studied to ensure availability. However, only a few studies exist where the lab-grown sundew tissue and field-grown sundew would have been compared in their functionality or metabolic profiles. In this study, the antioxidant and antiviral activities of lab-grown and field-grown sundew extracts and their metabolic profiles are examined. The effect of drying methods on the chromatographic profile of the extracts is also shown. Antioxidant activity was significantly higher (5–6 times) in field-grown sundew but antiviral activity against enterovirus strains coxsackievirus A9 and B3 was similar in higher extract concentrations (cell viability ca. 90%). Metabolic profiles showed that the majority of the identified compounds were the same but field-grown sundew contained higher numbers and amounts of secondary metabolites. Freeze-drying, herbal dryer, and oven or room temperature drying of the extract significantly decreased the metabolite content from −72% up to −100%. Freezing was the best option to preserve the metabolic composition of the sundew extract. In conclusion, when accurately handled, the lab-grown sundew possesses promising antiviral properties, but the secondary metabolite content needs to be higher for it to be considered as a good alternative for the field-grown sundew.
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Affiliation(s)
- Jenni Tienaho
- Biomass Characterization and Properties Group, Production Systems Unit, Natural Resources Institute Finland, Latokartanonkaari 9, FI-00791 Helsinki, Finland; (N.S.); (T.S.)
- Correspondence: ; Tel.: +358-29-532-4986
| | - Dhanik Reshamwala
- Department of Biological and Environmental Science, University of Jyväskylä, Seminaarinkatu 15, FI-40014 Jyväskylä, Finland; (D.R.); (V.M.)
| | - Maarit Karonen
- Natural Chemistry Research Group, University of Turku, FI-20014 Turku, Finland;
| | - Niko Silvan
- Biomass Characterization and Properties Group, Production Systems Unit, Natural Resources Institute Finland, Latokartanonkaari 9, FI-00791 Helsinki, Finland; (N.S.); (T.S.)
| | - Leila Korpela
- Forest Health and Biodiversity Group, Natural Resources Unit, Natural Resources Institute Finland, FI-00791 Helsinki, Finland;
| | - Varpu Marjomäki
- Department of Biological and Environmental Science, University of Jyväskylä, Seminaarinkatu 15, FI-40014 Jyväskylä, Finland; (D.R.); (V.M.)
| | - Tytti Sarjala
- Biomass Characterization and Properties Group, Production Systems Unit, Natural Resources Institute Finland, Latokartanonkaari 9, FI-00791 Helsinki, Finland; (N.S.); (T.S.)
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13
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Dini I, Laneri S. Spices, Condiments, Extra Virgin Olive Oil and Aromas as Not Only Flavorings, but Precious Allies for Our Wellbeing. Antioxidants (Basel) 2021; 10:868. [PMID: 34071441 PMCID: PMC8230008 DOI: 10.3390/antiox10060868] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Spices, condiments and extra virgin olive oil (EVOO) are crucial components of human history and nutrition. They are substances added to foods to improve flavor and taste. Many of them are used not only to flavor foods, but also in traditional medicine and cosmetics. They have antioxidant, antiviral, antibiotic, anticoagulant and antiinflammatory properties and exciting potential for preventing chronic degenerative diseases such as cardiomyopathy and cancer when used in the daily diet. Research and development in this particular field are deeply rooted as the consumer inclination towards natural products is significant. It is essential to let consumers know the beneficial effects of the daily consumption of spices, condiments and extra virgin olive oil so that they can choose them based on effects proven by scientific works and not by the mere illusion that plant products are suitable only because they are natural and not chemicals. The study begins with the definition of spices, condiments and extra virgin olive oil. It continues by describing the pathologies that can be prevented with a spicy diet and it concludes by considering the molecules responsible for the beneficial effects on human health (phytochemical) and their eventual transformation when cooked.
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Affiliation(s)
- Irene Dini
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Naples, Italy;
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14
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Serrano-Aroca Á, Takayama K, Tuñón-Molina A, Seyran M, Hassan SS, Pal Choudhury P, Uversky VN, Lundstrom K, Adadi P, Palù G, Aljabali AAA, Chauhan G, Kandimalla R, Tambuwala MM, Lal A, Abd El-Aziz TM, Sherchan S, Barh D, Redwan EM, Bazan NG, Mishra YK, Uhal BD, Brufsky A. Carbon-Based Nanomaterials: Promising Antiviral Agents to Combat COVID-19 in the Microbial-Resistant Era. ACS Nano 2021; 15:8069-8086. [PMID: 33826850 PMCID: PMC8043205 DOI: 10.1021/acsnano.1c00629] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/02/2021] [Indexed: 05/04/2023]
Abstract
Therapeutic options for the highly pathogenic human severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing the current pandemic coronavirus disease (COVID-19) are urgently needed. COVID-19 is associated with viral pneumonia and acute respiratory distress syndrome causing significant morbidity and mortality. The proposed treatments for COVID-19 have shown little or no effect in the clinic so far. Additionally, bacterial and fungal pathogens contribute to the SARS-CoV-2-mediated pneumonia disease complex. The antibiotic resistance in pneumonia treatment is increasing at an alarming rate. Therefore, carbon-based nanomaterials (CBNs), such as fullerene, carbon dots, graphene, and their derivatives constitute a promising alternative due to their wide-spectrum antimicrobial activity, biocompatibility, biodegradability, and capacity to induce tissue regeneration. Furthermore, the antimicrobial mode of action is mainly physical (e.g., membrane distortion), characterized by a low risk of antimicrobial resistance. In this Review, we evaluated the literature on the antiviral activity and broad-spectrum antimicrobial properties of CBNs. CBNs had antiviral activity against 13 enveloped positive-sense single-stranded RNA viruses, including SARS-CoV-2. CBNs with low or no toxicity to humans are promising therapeutics against the COVID-19 pneumonia complex with other viruses, bacteria, and fungi, including those that are multidrug-resistant.
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Affiliation(s)
- Ángel Serrano-Aroca
- Biomaterials and Bioengineering Lab, Centro de
Investigación Traslacional San Alberto Magno, Universidad
Católica de Valencia San Vicente Mártir, 46001 Valencia,
Spain
| | - Kazuo Takayama
- Center for iPS Cell Research and Application,
Kyoto University, Kyoto 606-8397,
Japan
| | - Alberto Tuñón-Molina
- Biomaterials and Bioengineering Lab, Centro de
Investigación Traslacional San Alberto Magno, Universidad
Católica de Valencia San Vicente Mártir, 46001 Valencia,
Spain
| | - Murat Seyran
- Doctoral studies in natural and technical sciences (SPL
44), University of Vienna, Währinger Straße, A-1090
Vienna, Austria
| | - Sk. Sarif Hassan
- Department of Mathematics, Pingla Thana
Mahavidyalaya, Maligram, Paschim Medinipur 721140, West Bengal,
India
| | - Pabitra Pal Choudhury
- Applied Statistics Unit, Indian
Statistical Institute, Kolkata 700108, West Bengal,
India
| | - Vladimir N. Uversky
- Department of Molecular Medicine, Morsani College of
Medicine, University of South Florida, Tampa, Florida 33612,
United States
| | | | - Parise Adadi
- Department of Food Science, University of
Otago, Dunedin 9054, New Zealand
| | - Giorgio Palù
- Department of Molecular Medicine,
University of Padova, Via Gabelli 63, 35121 Padova,
Italy
| | - Alaa A. A. Aljabali
- Department of Pharmaceutics and
Pharmaceutical Technology, Yarmouk University-Faculty of
Pharmacy, Irbid 21163, Jordan
| | - Gaurav Chauhan
- School of Engineering and Sciences,
Tecnológico de Monterrey, Av. Eugenio Garza Sada 2501
Sur, 64849 Monterrey, NL, Mexico
| | - Ramesh Kandimalla
- Applied Biology, CSIR-Indian
Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad-500007,
India
- Department of Biochemistry,
Kakatiya Medical College, Warangal-506007, Telangana State,
India
| | - Murtaza M. Tambuwala
- School of Pharmacy and Pharmaceutical
Science, Ulster University, Coleraine BT52 1SA, Northern
Ireland, U.K.
| | - Amos Lal
- Department of Medicine, Division of Pulmonary and Critical
Care Medicine, Mayo Clinic, Rochester, Minnesota 55905,
United States
| | - Tarek Mohamed Abd El-Aziz
- Zoology Department, Faculty of Science,
Minia University, El-Minia 61519,
Egypt
- Department of Cellular and Integrative
Physiology, University of Texas Health Science Center at San
Antonio, San Antonio, Texas 78229-3900, United
States
| | - Samendra Sherchan
- Department of Environmental Health Sciences,
School of Public Health and Tropical Medicine, Tulane University of
Louisiana, New Orleans, Louisiana 70112, United
States
| | - Debmalya Barh
- Institute of Integrative
Omics and Applied Biotechnology (IIOAB), Nonakuri, Purba Medinipur,
WB-721172, India
| | - Elrashdy M. Redwan
- Biological Sciences Department,
Faculty of Science, King Abdulaziz University, P.O. Box 80203,
Jeddah 21589, Saudi Arabia
- Therapeutic and Protective Proteins
Laboratory, Protein Research Department, Genetic Engineering and Biotechnology Research
Institute, City for Scientific Research and Technology
Applications, New Borg El-Arab, Alexandria 21934,
Egypt
| | - Nicolas G. Bazan
- Neuroscience Center of Excellence,
School of Medicine, LSU Heath New Orleans, New Orleans,
Louisiana 70112, United States
| | - Yogendra Kumar Mishra
- University of Southern
Denmark, Mads Clausen Institute, NanoSYD, Alsion 2, 6400 Sønderborg,
Denmark
| | - Bruce D. Uhal
- Department of Physiology, Michigan State
University, East Lansing, Michigan 48824, United
States
| | - Adam Brufsky
- University of Pittsburgh
School of Medicine, Department of Medicine, Division of
Hematology/Oncology, UPMC Hillman Cancer Center, Pittsburgh, Pennsylvania 15232,
United States
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15
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Janda K, Gutowska I, Geszke-Moritz M, Jakubczyk K. The Common Cichory ( Cichorium intybus L.) as a Source of Extracts with Health-Promoting Properties-A Review. Molecules 2021; 26:1814. [PMID: 33807029 PMCID: PMC8005178 DOI: 10.3390/molecules26061814] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 12/20/2022] Open
Abstract
Natural products are gaining more interest recently, much of which focuses on those derived from medicinal plants. The common chicory (Cichorium intybus L.), of the Astraceae family, is a prime example of this trend. It has been proven to be a feasible source of biologically relevant elements (K, Fe, Ca), vitamins (A, B1, B2, C) as well as bioactive compounds (inulin, sesquiterpene lactones, coumarin derivatives, cichoric acid, phenolic acids), which exert potent pro-health effects on the human organism. It displays choleretic and digestion-promoting, as well as appetite-increasing, anti-inflammatory and antibacterial action, all owing to its varied phytochemical composition. Hence, chicory is used most often to treat gastrointestinal disorders. Chicory was among the plants with potential against SARS-CoV-2, too. To this and other ends, roots, herb, flowers and leaves are used. Apart from its phytochemical applications, chicory is also used in gastronomy as a coffee substitute, food or drink additive. The aim of this paper is to present, in the light of the recent literature, the chemical composition and properties of chicory.
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Affiliation(s)
- Katarzyna Janda
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 71-460 Szczecin, Poland; (K.J.); (K.J.)
| | - Izabela Gutowska
- Department of Medical Chemistry, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland
| | - Małgorzata Geszke-Moritz
- Department of Pharmacognosy and Natural Remedies, Pomeranian Medical University in Szczecin, 70-111 Szczecin, Poland;
| | - Karolina Jakubczyk
- Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, 71-460 Szczecin, Poland; (K.J.); (K.J.)
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16
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Abuduaini T, Roy V, Marlet J, Gaudy-Graffin C, Brand D, Baronti C, Touret F, Coutard B, McBrayer TR, Schinazi RF, Agrofoglio LA. Synthesis and Antiviral Evaluation of (1,4-Disubstituted-1,2,3-Triazol)-( E)-2-Methyl-but-2-Enyl Nucleoside Phosphonate Prodrugs. Molecules 2021; 26:1493. [PMID: 33803417 DOI: 10.3390/molecules26051493] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/03/2021] [Accepted: 03/03/2021] [Indexed: 01/18/2023] Open
Abstract
A series of hitherto unknown (1,4-disubstituted-1,2,3-triazol)-(E)-2-methyl-but-2-enyl nucleosides phosphonate prodrugs bearing 4-substituted-1,2,3-triazoles were prepared in a straight approach through an olefin acyclic cross metathesis as the key synthetic step. All novel compounds were evaluated for their antiviral activities against HBV, HIV and SARS-CoV-2. Among these molecules, only compound 15j, a hexadecyloxypropyl (HDP)/(isopropyloxycarbonyl-oxymethyl)-ester (POC) prodrug, showed activity against HBV in Huh7 cell cultures with 62% inhibition at 10 μM, without significant cytotoxicity (IC50 = 66.4 μM in HepG2 cells, IC50 = 43.1 μM in HepG2 cells) at 10 μM.
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17
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Mizielińska M, Nawrotek P, Stachurska X, Ordon M, Bartkowiak A. Packaging Covered with Antiviral and Antibacterial Coatings Based on ZnO Nanoparticles Supplemented with Geraniol and Carvacrol. Int J Mol Sci 2021; 22:1717. [PMID: 33572073 DOI: 10.3390/ijms22041717] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 01/01/2023] Open
Abstract
The purpose of the study was to obtain an external coating based on nanoparticles of ZnO, carvacrol, and geraniol that could be active against viruses such as SARS-Co-V2. Additionally, the synergistic effect of the chosen substances in coatings was analyzed. The goal of the study was to measure the possible antibacterial activity of the coatings obtained. Testing antiviral activity with human pathogen viruses, such as SARS-Co-V2, requires immense safety measures. Bacteriophages such as phi 6 phage represent good surrogates for the study of airborne viruses. The results of the study indicated that the ZC1 and ZG1 coatings containing an increased amount of geraniol or carvacrol and a very small amount of nanoZnO were found to be active against Gram-positive and Gram-negative bacteria. It is also important that a synergistic effect between these active substances was noted. This explains why polyethylene (PE) films covered with the ZC1 or ZG1 coatings (as internal coatings) were found to be the best packaging materials to extend the quality and freshness of food products. The same coatings may be used as the external coatings with antiviral properties. The ZC1 and ZG1 coatings showed moderate activity against the phi 6 phage that has been selected as a surrogate for viruses such as coronaviruses. It can be assumed that coatings ZG1 and ZC1 will also be active against SARS-CoV-2 that is transmitted via respiratory droplets.
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18
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Ninfali P, Antonelli A, Magnani M, Scarpa ES. Antiviral Properties of Flavonoids and Delivery Strategies. Nutrients 2020; 12:nu12092534. [PMID: 32825564 PMCID: PMC7551920 DOI: 10.3390/nu12092534] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 12/18/2022] Open
Abstract
This review summarizes the latest advancements in phytochemicals as functional antiviral agents. We focused on flavonoids, like apigenin, vitexin, quercetin, rutin and naringenin, which have shown a wide range of biological effects including antiviral activities. The molecular mechanisms of their antiviral effects mainly consist in the inhibition of viral neuraminidase, proteases and DNA/RNA polymerases, as well as in the modification of various viral proteins. Mixtures of different flavonoids or combination of flavonoids with antiviral synthetic drugs provide an enhancement of their antiviral effects. Recent strategies in drug delivery significantly contribute to overcoming the low bioavailability of flavonoids. Frequent viral infections worldwide have led to the need for new effective antiviral agents, which can be identified among the various phytochemicals. In this light, screening the antiviral activities of a cocktail of flavonoids would be advantageous in order to prevent viral infections and improve current antiviral therapies.
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Affiliation(s)
| | | | - Mauro Magnani
- Correspondence: (M.M.); (E.S.S.); Tel.: +39-0722-305-211 (M.M.); +39-0722-305-252 (E.S.S.)
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19
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Deryabin PG, Galegov GA, Andronova VA, Botikov AG. Analysis of Antiviral Properties of Hexoral In Vitro against Some Viruses that Cause Acute Respiratory Infections and Herpes. Bull Exp Biol Med 2016; 160:353-6. [PMID: 26750930 DOI: 10.1007/s10517-016-3169-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 10/22/2022]
Abstract
Antiviral properties of Hexoral (0.1% solution and 0.2% aerosol for local application) and its constituent hexetidine against viruses causing human respiratory tract infections and herpes virus were studied in vitro. It was found that non-cytotoxic concentrations of hexetidine (alone and as a component of Hexoral) attenuated infectious properties of highly virulent influenza virus A/H5N1, pandemic influenza virus A/H1N1pdm, respiratory syncytial virus, and herpes simplex virus type 1 after a short-term exposure (30 sec) by 100 or more times. It was found that hexidine mostly contributes to the virucidal effect of Hexoral.
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