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Marmion M, Macori G, Barroug S, Soro AB, Bourke P, Tiwari BK, Whyte P, Scannell AGM. Added insult to injury? The response of meat-associated pathogens to proposed antimicrobial interventions. Appl Microbiol Biotechnol 2024; 108:87. [PMID: 38189954 PMCID: PMC10774175 DOI: 10.1007/s00253-023-12849-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 10/20/2023] [Accepted: 10/25/2023] [Indexed: 01/09/2024]
Abstract
Modern requirements for 'green label' meat products have led to the design of novel antimicrobial innovations which prioritise quality, safety and longevity. Plasma-functionalised water (PFW), ultraviolet light and natural antimicrobial compositions have been investigated and optimised for control of foodborne pathogens like Campylobacter jejuni and Salmonella enterica serovar Typhimurium. However, given the adaptive mechanisms present in bacteria under external stresses, it is imperative to understand the effect that sublethal treatment may have on the bacterial transcriptome. In this study, Salmonella Typhimurium and C. jejuni were treated with sublethal doses of ultraviolet light, a citrus juice/essential oil marinade, and 'spark' or 'glow' cold plasma generation system-produced PFW. Immediately after treatment, cells were lysed and RNA was extracted and purified. mRNA was converted to cDNA by reverse transcription-PCR and sequenced by an Illumina MiSeq® system. Sequences were filtered and analysed using the Tuxedo workflow. Sublethal treatment of Campylobacter jejuni and Salmonella Typhimurium led to increased immediate cellular and metabolic activity, as well as diversification in protein and metabolic functioning. There was further expression of pathogenesis and virulence-associated traits associated with spark PFW and marinade treatment of Salmonella Typhimurium. However, similar concerns were not raised with glow PFW or UV-treated samples. This study provides science-based evidence of the efficacy of multi-hurdle antimicrobial system using green-label marinades and PFW or UV to inactivate pathogens without upregulating virulence traits in surviving cells. This study will inform policymakers and food industry stakeholders and reinforces the need to incorporate in-line novel technologies to ensure consumer safety. KEY POINTS: • Salmonella and C. jejuni showed increased cell activity in immediate response to stress. • Virulence genes showed increased expression when treated with natural antimicrobials and sPFW. • Reduced immediate transcriptomic response to gPFW and UV treatment indicates lower risk.
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Affiliation(s)
- Maitiú Marmion
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland.
- UCD Centre for Food Safety, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland.
| | - Guerrino Macori
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
- UCD Centre for Food Safety, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
| | - Soukaina Barroug
- UCD School of Biosystems and Engineering, School of Public Health, Physiotherapy & Sports Science, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
| | - Arturo B Soro
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
- Department of Food Chemistry and Technology, Teagasc Food Research Centre, Ashtown, Dublin 15, D15 KN3K, Ireland
| | - Paula Bourke
- UCD School of Biosystems and Engineering, School of Public Health, Physiotherapy & Sports Science, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
| | - Brijesh K Tiwari
- Department of Food Chemistry and Technology, Teagasc Food Research Centre, Ashtown, Dublin 15, D15 KN3K, Ireland
| | - Paul Whyte
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
| | - Amalia G M Scannell
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
- UCD Centre for Food Safety, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
- UCD Institute of Food and Health, University College Dublin, Belfield, Dublin 4, D04V4W8, Ireland
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Chigede N, Chikwambi Z, Mpofu IDT, Madzimure J. Isolation and characterization of biosurfactant-producing microbes isolated from the gastrointestinal system of broiler birds fed a commercial diet. Anim Biotechnol 2024; 35:2263771. [PMID: 37814822 DOI: 10.1080/10495398.2023.2263771] [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] [Indexed: 10/11/2023]
Abstract
Antimicrobial drug resistance (AMR) from improper use of antibiotics in various livestock products is a growing hazard for humans worldwide, with current death rate in excess of 700,000 per annum linked to the problem. Microorganisms are a rich source of structurally distinct bioactive compounds designed to protect the microbes and can offset AMR challenge. A study was conducted at Chinhoyi University of Technology to isolate, identify and characterize biosurfactant secreting microbes from broiler bird's gastrointestinal tract. Analysis of variance was performed in Genstat software. 16S rRNA technique was used to identify the DNA of isolates, annotated by similarity using BLASTn analysis against the NCBI nucleotide database. Phylogenetic analysis was performed on the BLASTn outcome to have an appreciation of the evolutionary genetic relationships. Small intestine-derived samples had a wider hemolytic activity of 5.6 mm, with a 39% emulsification index. At 98.29% sequence similarity, the bacterium producing biosurfactants was identified as an Escherichia coli strain similar to the 7.1994/NIST 0056 strain. The biosurfactant substance is a derivative of decane with beta lactams, tetracyclines and sulfa drugs properties which were responsible for the observed antibacterial activity. We recommend endogenous biosurfactant production optimization experiments and in-vivo trials to evaluate the potential impacts of a biosurfactant based feed additive in broilers.
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Affiliation(s)
- Ngavaite Chigede
- School of Agricultural Sciences and Technology, Department of Animal Production and Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
- Gary Magadzire School of Agriculture and Engineering, Department of Livestock, Wildlife and Fisheries, Great Zimbabwe University, Masvingo, Zimbabwe
| | - Zedias Chikwambi
- School of Agricultural Sciences and Technology, Department of Animal Production and Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
| | - Irvin D T Mpofu
- School of Agricultural Sciences and Technology, Department of Animal Production and Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
| | - James Madzimure
- School of Agricultural Sciences and Technology, Department of Animal Production and Technology, Chinhoyi University of Technology, Chinhoyi, Zimbabwe
- College of Health, Agriculture and Natural Sciences, Department of Agricultural Sciences, Africa University, Mutare, Zimbabwe
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Bhatt S, Pathak R, Punetha VD, Punetha M. Chitosan nanocomposites as a nano-bio tool in phytopathogen control. Carbohydr Polym 2024; 331:121858. [PMID: 38388036 DOI: 10.1016/j.carbpol.2024.121858] [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: 10/11/2023] [Revised: 01/06/2024] [Accepted: 01/21/2024] [Indexed: 02/24/2024]
Abstract
Chitosan, an economically viable and versatile biopolymer, exhibits a wide array of advantageous physicochemical and biological properties. Chitosan nanocomposites, formed by the amalgamation of chitosan or chitosan nanoparticles with other nanoparticles or materials, have garnered extensive attention across agricultural, pharmaceutical, and biomedical domains. These nanocomposites have been rigorously investigated due to their diverse applications, notably in combatting plant pathogens. Their remarkable efficacy against phytopathogens has positioned them as a promising alternative to conventional chemical-based methods in phytopathogen control, thus exploring interest in sustainable agricultural practices with reduced reliance on chemical interventions. This review aims to highlight the anti-phytopathogenic activity of chitosan nanocomposites, emphasizing their potential in mitigating plant diseases. Additionally, it explores various synthesis methods for chitosan nanoparticles to enhance readers' understanding. Furthermore, the analysis delves into elucidating the intricate mechanisms governing the antimicrobial effectiveness of these composites against bacterial and fungal phytopathogens.
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Affiliation(s)
- Shalini Bhatt
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India.
| | - Rakshit Pathak
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India
| | - Vinay Deep Punetha
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India
| | - Mayank Punetha
- 2D Materials and LASER Actuation Laboratory, Centre of Excellence for Research, PP Savani University, Surat 394125, Gujarat, India
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Amina R, Habiba R, Abouddihaj B. Camel urine as a potential source of bioactive molecules showing their efficacy against pathogens: A systematic review. Saudi J Biol Sci 2024; 31:103966. [PMID: 38495380 PMCID: PMC10940778 DOI: 10.1016/j.sjbs.2024.103966] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/20/2024] [Accepted: 02/24/2024] [Indexed: 03/19/2024] Open
Abstract
Camels are highly suited for severe desert conditions and able to provide most of the natural products like urine, which has been used as alternative medicine to treat diverse infections and disorders. There is, however, a shortage and paucity of scientific reviews highlighting the antifungal, antibacterial and antiviral effects of camel urine. By better understanding its antimicrobial characteristics, our overarching aim is to provide an exhaustive overview of this valuable natural product by synthesizing and summarizing data on the efficacy of this biofluid and also describing the potential substances exhibiting antimicrobial properties. We searched three databases in order to point out relevant articles (Web of Science, Scopus and Google Scholar) until December 2022. Research articles of interest evaluating the antimicrobial effects of camel urine were selected. Overall, camel urine furnished promising antibacterial activities against gram-positive bacteria, namely Staphylococcus aureus (30 mm), Bacillus cereus (22 mm), Bacillus subtilis (25 mm) and Micrococcus luteus (21 mm), as well as gram-negative bacteria, especially Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, Enterobacter cloacae, and Salmonella spp., without forgetting its efficiency on Mycobacterium tuberculosis as well. The excretion also showed its potency against H1N1 virus, vesicular stomatitis virus and middle east respiratory syndrome coronavirus. Similarly, the camel urine featured strong antifungal activity against Candida albicans, Aspergillus niger, Aspergillus flavus and dermatophytes with a minimal inhibitory concentration of 0.625 μg/ml against Trichophyton violaceum, 2.5 μg/ml against Microsporum canis and 1.25 μg/ml against Trichophyton rubrum and Trichophyton mentagrophytes. This comprehensive review will be valuable for researchers interested in investigating the potential of camel urine in the development of novel broad-spectrum key molecules targeting a wide range of drug-resistant pathogenic microorganisms.
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Affiliation(s)
- Ressmi Amina
- Laboratory of Biotechnology and Sustainable Development of Natural Resources, Life Sciences Department, Polydisciplinary Faculty, Sultan Moulay Slimane University, Beni Mellal 23023, Morocco
| | - Raqraq Habiba
- Laboratory of Biotechnology and Sustainable Development of Natural Resources, Life Sciences Department, Polydisciplinary Faculty, Sultan Moulay Slimane University, Beni Mellal 23023, Morocco
| | - Barguigua Abouddihaj
- Laboratory of Biotechnology and Sustainable Development of Natural Resources, Life Sciences Department, Polydisciplinary Faculty, Sultan Moulay Slimane University, Beni Mellal 23023, Morocco
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de Andrade VM, de Oliveira VDM, Barcick U, Ramu VG, Heras M, Bardají ER, Castanho MARB, Zelanis A, Capella A, Junqueira JC, Conceição K. Mechanistic insights on the antibacterial action of the kyotorphin peptide derivatives revealed by in vitro studies and Galleria mellonella proteomic analysis. Microb Pathog 2024; 189:106607. [PMID: 38437995 DOI: 10.1016/j.micpath.2024.106607] [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: 01/10/2024] [Revised: 02/21/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
OBJECTIVES The selected kyotorphin derivatives were tested to improve their antimicrobial and antibiofilm activity. The antimicrobial screening of the KTP derivatives were ascertained in the representative strains of bacteria, including Streptococcus pneumoniae, Streptococcus pyogenes, Escherichia coli and Pseudomonas aeruginosa. METHODS Kyotorphin derivatives, KTP-NH2, KTP-NH2-DL, IbKTP, IbKTP-NH2, MetKTP-DL, MetKTP-LD, were designed and synthesized to improve lipophilicity and resistance to enzymatic degradation. Peptides were synthesized by standard solution or solid-phase peptide synthesis and purified using RP-HPLC, which resulted in >95 % purity, and were fully characterized by mass spectrometry and 1H NMR. The minimum inhibitory concentrations (MIC) determined for bacterial strains were between 20 and 419 μM. The direct effect of IbKTP-NH2 on bacterial cells was imaged using scanning electron microscopy. The absence of toxicity, high survival after infection and an increase in the hemocytes count was evaluated by injections of derivatives in Galleria mellonella larvae. Proteomics analyses of G. mellonella hemolymph were performed to investigate the underlying mechanism of antibacterial activity of IbKTP-NH2 at MIC. RESULTS IbKTP-NH2 induces morphological changes in bacterial cell, many differentially expressed proteins involved in DNA replication, synthesis of cell wall, and virulence were up-regulated after the treatment of G. mellonella with IbKTP-NH2. CONCLUSION We suggest that this derivative, in addition to its physical activity on the bacterial membranes, can elicit a cellular and humoral immune response, therefore, it could be considered for biomedical applications.
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Affiliation(s)
- Vitor M de Andrade
- Laboratório de Bioquímica de Peptídeos, Departamento de Ciência e Tecnologia - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Vitor D M de Oliveira
- Laboratório de Bioquímica de Peptídeos, Departamento de Ciência e Tecnologia - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Uilla Barcick
- Laboratório de Proteômica Funcional, Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Vasanthakumar G Ramu
- Laboratori d'Innovació en Processos i Productes de Síntesi Orgànica (LIPPSO), Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Spain; Peptides and Complex Generics, #2700, Neovantage, Genome Valley, Shameerpet, Hyderabad, 500078, Telengana, India
| | - Montserrat Heras
- Laboratori d'Innovació en Processos i Productes de Síntesi Orgànica (LIPPSO), Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Spain
| | - Eduard R Bardají
- Laboratori d'Innovació en Processos i Productes de Síntesi Orgànica (LIPPSO), Departament de Química, Universitat de Girona, Campus Montilivi, 17071, Girona, Spain
| | - Miguel A R B Castanho
- Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Av. Professor Egas Moniz, 1649-028, Lisboa, Portugal
| | - André Zelanis
- Laboratório de Proteômica Funcional, Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Aline Capella
- Laboratório ProLaser, Departamento de Ciência e Tecnologia, Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil
| | - Juliana C Junqueira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, 12245-000, SP, Brazil
| | - Katia Conceição
- Laboratório de Bioquímica de Peptídeos, Departamento de Ciência e Tecnologia - Universidade Federal de São Paulo - UNIFESP, Rua Talim, 330, São José dos Campos, SP, 12231-280, Brazil.
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Tashakor AH, Rezaei A, Fouladseresht H, Mansury D. Characterization and investigation of cytotoxicity and antimicrobial properties of coencapsulated limonene and thymol into the Ferula assafoetida gum microparticles. Int J Biol Macromol 2024; 263:130338. [PMID: 38387626 DOI: 10.1016/j.ijbiomac.2024.130338] [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: 12/11/2023] [Revised: 02/10/2024] [Accepted: 02/19/2024] [Indexed: 02/24/2024]
Abstract
Thymol (Th) and d-limonene (L) exhibit low stability and are prone to oxidation when exposed to air, light, humidity, and high temperatures. This study examined the coencapsulation of Th and L into Ferula assafoetida gum (AFG) microparticles. Scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analyzer (TGA) were done to characterize the obtained complexes. Furthermore, the encapsulation efficiency, antibacterial properties, cytotoxicity, and anticancer properties of both the free and encapsulated forms of L and Th were measured. For all samples, by increasing the percentage of bioactive compound (L, Th, and L-Th) from 2.5 to 5 % w/w, the EE was increased. FTIR and XRD analysis results demonstrated that Th and L were successfully incorporated into the AFG. Additionally, thermogravimetric analysis showed that in the thermal graphs of all samples, the first weight loss occurred between 30 °C and 160 °C, which was due to the evaporation of water. In the free L and Th graph, a sharp reduction peak was observed in which 80 % of compounds were lost. These reduction peaks disappeared in the thermal graphs of L: AFG and Th: AFG revealing that the thermal stability of Th and L was significantly increased upon their incorporation into the AFG. The inclusion of Th into the AFG also led to an increase in its antibacterial activity, while L exhibited acceptable antibacterial activity, albeit not as high as Th. Additionally, according to the MIC results, Th: AFG had the best antibacterial activity among all compounds, especially on gram-positive bacteria. According to the result of the MTT assay, there was a significant difference between the IC50 of free Th (123.4 μg/ml) and Th: AFG (2312 μg/ml), and free L (1762 μg/ml) and L: AFG (2480 μg/ml) showing that encapsulated Th and L into the AFG has decreased the cytotoxicity of free compounds against L929 cell line. Also, Th: AFG had the best anticancer activity against Hella and CT26 cell lines among all compounds. Finally, the flow cytometry analysis demonstrated that the encapsulated particles effectively eliminated cancer cells. The outcomes imply that AFG can be employed as a suitable delivery system to enhance the use of Th and L into the food and pharmaceutical industries.
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Affiliation(s)
- Amir Hossein Tashakor
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Atefe Rezaei
- Department of Food Science and Technology, School of Nutrition and Food Science, Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, P.O. Box: 81746-73461, Isfahan, Iran
| | - Hamed Fouladseresht
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Davood Mansury
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
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Osman ME, Abo Elnasr AA, Mohamed ET, Faraag AHI. Enhancement of Streptomyces thinghirensis WAE1 for production of bioactive metabolites under different optimization strategies. Microb Pathog 2024; 189:106603. [PMID: 38417686 DOI: 10.1016/j.micpath.2024.106603] [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: 09/21/2023] [Revised: 02/01/2024] [Accepted: 02/25/2024] [Indexed: 03/01/2024]
Abstract
Isolation of novel bioactive metabolites from Streptomyces strains is a promising source for drug discovery. However, conventional screening approaches have limitations in identifying new leads due to redundant discoveries. Optimization of culture conditions is important but traditionally optimized one factor at a time, failing to consider interactions. This study addressed these gaps by enhancing metabolite production from Streptomyces thinghirensis WAE1 through statistical optimization. Various chemical and physical factors impacting metabolite production were identified. Response surface methodology with a central composite design was applied to optimize significant factors like carbon source, nitrogen source, inoculum size, pH, temperature and incubation period. This optimized production against Streptococcus pneumoniae, increasing antibacterial activity by 74.92%. Gas chromatography-mass spectrometry revealed 19 bioactive compounds, including 1,25-dihydroxyvitamin D3 inhibiting cell wall development. This highlights S. thinghirensis WAE1's potential as a bioresource and emphasizes studying metabolite production from novel Streptomyces strains to discover new antibacterial drugs.
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Affiliation(s)
- Mohamed E Osman
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt
| | - Amany A Abo Elnasr
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt
| | - Eslam T Mohamed
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt.
| | - Ahmed H I Faraag
- Botany and Microbiology Department, Faculty of Science, Helwan University, Ain Helwan, Cairo, 11795, Egypt; School of Biotechnology, Badr University in Cairo, Badr City, 11829, Cairo, Egypt.
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Alnazeh AA, Kamran MA, Almoammar S, Al Jearah MM, Qasim M, Alshahrani I. Visible light-activated curcumin-doped zinc oxide nanoparticles integrated into orthodontic adhesive on Micro-tensile bond strength, degree of conversion, and antibacterial effectiveness against Staphylococcus Aureus. An investigation using scanning electron microscopy and energy-dispersive X-ray spectroscopy. J Photochem Photobiol B 2024; 253:112888. [PMID: 38471422 DOI: 10.1016/j.jphotobiol.2024.112888] [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: 02/04/2024] [Revised: 02/25/2024] [Accepted: 03/05/2024] [Indexed: 03/14/2024]
Abstract
AIM To acquire a thorough comprehension of the photoactivated Cur-doped ZnONPs at different concentrations 0%, 2.5%, and 5% on the physical qualities, antibacterial efficacy, degree of conversion, and μshear bond strength between orthodontic brackets and the enamel surface. MATERIAL AND METHODS An extensive investigation was carried out utilizing a range of analytical methods, scanning electron microscopy (SEM) combined with energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared (FTIR) spectroscopy, micro tensile bond strength (μTBS) testing, and evaluation of antibacterial effectiveness. Cur-doped ZnONPs at concentrations of 2.5% and 5% were blended with Transbond XT, a light-curable orthodontic adhesive. A control group without the addition of Cur-doped ZnONPs was also prepared. The tooth samples were categorized into three groups based on the weight percentage of NPs: Group 1 (control) with 0% Cur-doped ZnONPs, Group 2 with 2.5 wt% Cur-doped ZnONPs, and Group 3 with 5 wt% Cur-doped ZnONPs. The SEM technique was employed to analyze the morphological characteristics of Cur-doped ZnONPs and ZnONPs. The composition and elemental distribution of the modified Cur-doped ZnONPs were assessed using energy-dispersive X-ray spectroscopy. The effectiveness of NPs at various concentrations against S.Mutans was gauged through the pour plate method. DC of Cur-doped ZnONPs at a region of 1608 cm-1 to 1636 cm-1 for the cured area, whereas the uncured area spanned the same range of 1608 cm-1 to 1636 cm-1 was assessed. The Adhesive Remnant Index (ARI) approach was utilized to investigate the bond failure of orthodontic brackets, while a Universal Testing Machine (UTM) was utilized to test μTBS. The Kruskal-Wallis test was employed to investigate variations in S.mutans survival rates. To determine the μTBS values, analysis of variance (ANOVA) and the post hoc Tukey multiple comparisons test were used. RESULTS The maximum μTBS was given and documented in group 3: 5 wt% Cur-doped ZnONPs (21.21 ± 1.53 MPa). The lowest μTBS was given in group 2: 2.5 wt% Cur-doped ZnONPs (19.58 ± 1.27 MPa). The highest efficacy against S.mutans was documented in group 3 in which 5 wt% Cur-doped ZnONPs (0.39 ± 0.15). The lowest efficacy was seen in group 1 in which no Cur-doped ZnONPs were used (6.47 ± 1.23). The ARI analysis indicated that the predominant failure was between scores 0 and 1 among all experimental groups. Control group 1 which was not modified showed the highest DC (73.11 ± 4.19). CONCLUSION Orthodontic adhesive, containing 5% Cur-doped ZnONPs photoactivated with visible light exhibited a favorable impact on μTBS and indicated enhanced antibacterial efficacy against S.mutans. Nevertheless, it was observed that the addition of Cur-doped ZnONPs at different concentrations (2.5%,5%) resulted in a decrease in the monomer-to-polymer ratio compromising DC.
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Affiliation(s)
- Abdullah A Alnazeh
- Department of Pedodontics and Orthodontic Sciences, College of Dentistry, King Khalid University Abha, Saudi Arabia
| | - Muhammad Abdullah Kamran
- Department of Pedodontics and Orthodontic Sciences, College of Dentistry, King Khalid University Abha, Saudi Arabia.
| | - Salem Almoammar
- Department of Pedodontics and Orthodontic Sciences, College of Dentistry, King Khalid University Abha, Saudi Arabia
| | | | - Muhammad Qasim
- Department of Operative Dentistry and Endodontics King Khalid University Abha, Saudi Arabia
| | - Ibrahim Alshahrani
- Department of Pedodontics and Orthodontic Sciences, College of Dentistry, King Khalid University Abha, Saudi Arabia
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Lee DU, Kayumov M, Park J, Park SK, Kang Y, Ahn Y, Kim W, Yoo SH, Park JK, Kim BG, Oh YS, Jeong IS, Choi DY. Antibiofilm and antithrombotic hydrogel coating based on superhydrophilic zwitterionic carboxymethyl chitosan for blood-contacting devices. Bioact Mater 2024; 34:112-124. [PMID: 38204564 PMCID: PMC10777421 DOI: 10.1016/j.bioactmat.2023.12.009] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024] Open
Abstract
Blood-contacting devices must be designed to minimize the risk of bloodstream-associated infections, thrombosis, and intimal lesions caused by surface friction. However, achieving effective prevention of both bloodstream-associated infections and thrombosis poses a challenge due to the conflicting nature of antibacterial and antithrombotic activities, specifically regarding electrostatic interactions. This study introduced a novel biocompatible hydrogel of sodium alginate and zwitterionic carboxymethyl chitosan (ZW@CMC) with antibacterial and antithrombotic activities for use in catheters. The ZW@CMC hydrogel demonstrates a superhydrophilic surface and good hygroscopic properties, which facilitate the formation of a stable hydration layer with low friction. The zwitterionic-functionalized CMC incorporates an additional negative sulfone group and increased negative charge density in the carboxyl group. This augmentation enhances electrostatic repulsion and facilitates the formation of hydration layer. This leads to exceptional prevention of blood clotting factor adhesion and inhibition of biofilm formation. Subsequently, the ZW@CMC hydrogel exhibited biocompatibility with tests of in vitro cytotoxicity, hemolysis, and catheter friction. Furthermore, in vivo tests of antithrombotic and systemic inflammation models with catheterization indicated that ZW@CMC has significant advantages for practical applications in cardiovascular-related and sepsis treatment. This study opens a new avenue for the development of chitosan-based multifunctional hydrogel for applications in blood-contacting devices.
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Affiliation(s)
- Dong Uk Lee
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon, 38822, Republic of Korea
| | - Mukhammad Kayumov
- Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, Gwangju, 61469, Republic of Korea
| | - Junghun Park
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon, 38822, Republic of Korea
| | - Se Kye Park
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon, 38822, Republic of Korea
| | - Yeongkwon Kang
- Research Institute of Advanced Materials, Seoul National University, Seoul, 08826, Republic of Korea
| | - Yejin Ahn
- Department of Organic and Nano System Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Woojin Kim
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon, 38822, Republic of Korea
| | - Seung Hwa Yoo
- Department of Quantum System Engineering, Jeonbuk National University, Jeonju-si, 54896, Republic of Korea
| | | | - Bong-Gi Kim
- Department of Organic and Nano System Engineering, Konkuk University, Seoul, 05029, Republic of Korea
| | - Yong Suk Oh
- Department of Mechanical Engineering, Changwon National University, Changwon, 51140, Republic of Korea
| | - In-Seok Jeong
- Department of Thoracic and Cardiovascular Surgery, Chonnam National University Hospital and Medical School, Gwangju, 61469, Republic of Korea
| | - Dong Yun Choi
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon, 38822, Republic of Korea
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Khalaf MM, Abd El-Lateef HM, Gouda M, Abdelhamid AA, Abdelbaset M, Alsulami AH, Almarri MN, Abdou A. Designing, DFT, biological, & molecular docking analysis of new Iron(III) & copper(II) complexes incorporating 1-{[-(2-Hydroxyphenyl)methylene]amino}-5,5-diphenylimidazolidine-2,4-dione (PHNS). Comput Biol Chem 2024; 109:108031. [PMID: 38382408 DOI: 10.1016/j.compbiolchem.2024.108031] [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: 12/04/2023] [Revised: 01/25/2024] [Accepted: 02/10/2024] [Indexed: 02/23/2024]
Abstract
The exploration encompassed the synthesis and characterization of two innovative complexes, namely FePHNS and CuPHNS, employing a diverse array of analytical techniques such as elemental analysis, infrared and ultraviolet-visible spectroscopy, mass spectrometry, molar conductivity measurements, magnetic susceptibility assessments, and thermal analysis (TGA). In the spectral domain, infrared spectroscopy substantiated the tridentate ONS coordination of the PHNS ligand to the central metal atom. Thermal analysis offered valuable insights into the distribution and content of water molecules within the complexes. Density functional theory (DFT) calculations were harnessed to validate the molecular structures of both the PHNS ligand and its complex entities, providing an intricate comprehension of their quantum chemical parameters. The investigation extended to an evaluation of the in vitro antibacterial, antifungal, and antioxidant efficacy of the PHNS ligand and its complexes, revealing heightened biological activities for the complexes in comparison to the free PHNS ligand, notably with the CuPHNS complex demonstrating the highest activity, while the PHNS ligand exhibited the lowest. To delve into potential physiological activities, molecular docking studies were conducted, predicting the binding affinity of the compounds to proteins 2vf5 (Glucosamine-6-phosphate synthase in complex with glucosamine-6-phosphate) from Escherichia coli, 3cku (rate oxidase from Aspergillus flavus complexed with its inhibitor 8-azaxanthin and chloride) from Aspergillus flavus, and 5IJT (Crystal structure of Human Peroxiredoxin 2 Oxidized). The ensuing analysis of protein-ligand interactions and binding energies underscored the promising physiological activities of the investigated compounds, warranting further exploration for their potential in novel drug development.
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Affiliation(s)
- Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; Chemistry Department, Faculty of Science, Sohag University Sohag 82524, Egypt
| | - Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia; Chemistry Department, Faculty of Science, Sohag University Sohag 82524, Egypt.
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Antar A Abdelhamid
- Chemistry Department, Faculty of Science, Sohag University Sohag 82524, Egypt; Department of Chemistry, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia
| | - Mohamed Abdelbaset
- Department of Chemistry, Faculty of Science, Al-Baha University, Al-Baha, Saudi Arabia; Chemistry Department, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Abdulelah H Alsulami
- Chemistry Department, Faculty of Science and Arts in Baljurashi, Al-Baha University, Al-Baha, Saudi Arabia
| | - Mohammed N Almarri
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Aly Abdou
- Chemistry Department, Faculty of Science, Sohag University Sohag 82524, Egypt.
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Bashir A, Khan SR, Aqib AI, Shafique L, Ataya FS. Multifunctional integration of tungsten oxide (WO 3) coating: A versatile approach for enhanced performance of antibiotics against single mixed bacterial infections. Microb Pathog 2024; 189:106571. [PMID: 38341107 DOI: 10.1016/j.micpath.2024.106571] [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: 12/08/2023] [Revised: 01/25/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Nanomaterials containing tungsten (TNMs), characterized by diverse nanostructures had been extensively used in biomedical sector. Despite numerous reports focusing on TNM applications in specific biomedical areas, there is a noticeable absence of comprehensive studies that focused on detailed characterization of nanomaterials along with their biological applications. The present work described the structural, morphological, and antimicrobial properties of tungsten oxide (WO3) nanoparticles coated by antibiotics (nanobiotics), and their application on single and mixed bacterial culture. The nanobiotics included in this study were WO3 coated with ampicillin (W+A), WO3 coated with penicillin (P+W), and WO3 coated with ciprofloxacin (C+W). Techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray spectroscopy (EDX), Fourier transforms infrared spectroscopy (FTIR), Rrman spectroscopy, and UV-visible spectroscopy were used to characterize synthesized nanoparticles. The minimum inhibitory concentration of C+W nanobiotic against S. aureus, E. coli, and mixed culture (S. aureus +E. coli) was lower than that of P+W and A+W. The impact of incubation period showed significant differences for each of nanobiotic against S. aureus, E. coli, and mixed culture. However, there were also non-significant differences among incubation periods for antibacterial activity of nanobiotics. It was pertinent to note that percentage variation in susceptibility of S. aureus with respect to mixed culture remained higher as compared to E. coli, indicating it stronger candidate imposing resistance. This paper thus suggested the strategy of coating of antibiotics with with WO3 nanoparticles as an ideal combination for resistance modulation against single and mixed culture bacteria.
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Affiliation(s)
- Arslan Bashir
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Shanza Rauf Khan
- Department of Chemistry, University of Agriculture, Faisalabad, 38000, Pakistan
| | - Amjad Islam Aqib
- Department of Medicine, Cholistan University of Veterinary and Animal Sciences, Bahawalpur, 63100, Pakistan.
| | - Laiba Shafique
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, Beibu Gulf University, Guangxi, 535011, China
| | - Farid S Ataya
- Department of Biochemistry, College of Science, King Saud University, PO Box 2455, Riyadh, 11451, Saudi Arabia
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Venezia V, Prieto C, Verrillo M, Grumi M, Silvestri B, Vitiello G, Luciani G, Lagaron JM. Electrospun films incorporating humic substances of application interest in sustainable active food packaging. Int J Biol Macromol 2024; 263:130210. [PMID: 38365144 DOI: 10.1016/j.ijbiomac.2024.130210] [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: 12/01/2023] [Revised: 01/29/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
Sustainable active food packaging is essential to reduce the use of plastics, preserve food quality and minimize the environmental impact. Humic substances (HS) are rich in redox-active compounds, such as quinones, phenols, carboxyl, and hydroxyl moieties, making them functional additives for biopolymeric matrices, such as poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). Herein, composites made by incorporating different amounts of HS into PHBV were developed using the electrospinning technology and converted into homogeneous and continuous films by a thermal post-treatment to obtain a bioactive and biodegradable layer which could be part of a multilayer food packaging solution. The morphology, thermal, optical, mechanical, antioxidant and barrier properties of the resulting PHBV-based films have been evaluated, as well as the antifungal activity against Aspergillus flavus and Candida albicans and the antimicrobial properties against both Gram (+) and Gram (-) bacterial strains. HS show great potential as natural additives for biopolymer matrices, since they confer antioxidant, antimicrobial, and antifungal properties to the resulting materials. In addition, barrier, optical and mechanical properties highlighted that the obtained films are suitable for sustainable active packaging. Therefore, the electrospinning methodology is a promising and sustainable approach to give biowaste a new life through the development of multifunctional materials suitable in the active bio-packaging.
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Affiliation(s)
- Virginia Venezia
- DICMaPI, Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy; DiSt, Department of Structures for Engineering and Architecture, University of Naples Federico II, Naples, Italy.
| | - Cristina Prieto
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Paterna, Spain
| | | | - Mattia Grumi
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Paterna, Spain
| | - Brigida Silvestri
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Italy
| | - Giuseppe Vitiello
- DICMaPI, Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy; CSGI-Center for Colloid and Surface Science, Via Della Lastruccia 3, 50019 Florence, Italy
| | - Giuseppina Luciani
- DICMaPI, Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy.
| | - Jose M Lagaron
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish Council for Scientific Research (CSIC), Paterna, Spain
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Leite BGDS, Granghelli CA, Roque FDA, Carvalho RSB, Lopes MHS, Pelissari PH, Dias MT, Araújo CSDS, Araújo LF. Evaluation of dietary lignin on broiler performance, nutrient digestibility, cholesterol and triglycerides concentrations, gut morphometry, and lipid oxidation. Poult Sci 2024; 103:103518. [PMID: 38387295 PMCID: PMC10900952 DOI: 10.1016/j.psj.2024.103518] [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: 11/07/2023] [Revised: 01/25/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024] Open
Abstract
Two trials were performed in order to evaluate the effects of dietary Kraft lignin inclusion on broiler performance, ileal nutrient digestibility, blood lipid profile, intestinal morphometry, and lipid oxidation of meat. Trial 1 was conducted in order to evaluate performance and ileal digestibility for the period of 1 to 21 d of age, randomly distributing 490 day-old broiler chicks across 5 dietary treatments with 14 replicates containing 7 birds each in metabolic cages, while trial 2 was executed in order to evaluate performance, blood parameters, intestinal morphometry, carcass yield and abdominal fat, and lipid oxidation for the period of 1 to 42 d of age, randomly distributing 900 day-old broiler chicks across 5 dietary treatments with 15 replicates of 12 birds each in floor pens, being each bird in trial 2 challenged with coccidiosis vaccine at 10 d of age. The treatments used in both trials were: positive control (PC): basal diet + antimicrobial; negative control (NC): Basal diet; NC1: NC + 1% lignin; NC2: NC + 2% lignin; NC3: NC + 3% lignin. For trial 1, it was observed that birds fed diets containing 1% lignin had a significant positive effect for BW, feed intake (FI), average daily weight gain (BWG) and feed conversion rate (FCR), similar to the PC, but also showing better EE, CP and AAs ileal digestibility percentages when compared to other treatments. For trial 2, it was observed that during the period of 21 to 35 d, the inclusion of lignin in the diet provided better results in animal performance, similar to the PC group, but at 42 d, animals fed with dietary lignin showed results lower than animals fed the PC diet (P < 0.05). Animals fed with increasing lignin concentrations showed decreasing levels of HDL (P < 0.05). As of intestinal morphometry, animals fed with 1% and 3% lignin showed longer intestinal length (P < 0.05). At 14 d of age, it was observed that animals fed with lignin showed oxidation levels similar to the control treatments. The inclusion of up to 1% lignin in the diet provides beneficial effects on productive performance and nutrient digestibility, while the inclusion of 2% lignin provided lower cholesterol levels, lower villus/crypt ratio, and better internal organ development, therefore, it can be considered an alternative to performance-enhancing antimicrobials in broiler chicken diets.
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Affiliation(s)
- Brunna Garcia de Souza Leite
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Carlos Alexandre Granghelli
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil.
| | - Fabricia de Arruda Roque
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Rachel Santos Bueno Carvalho
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Mário Henrique Scapin Lopes
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Paulo Henrique Pelissari
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Mylena Tuckmantel Dias
- School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Cristiane Soares da Silva Araújo
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil; School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
| | - Lúcio Francelino Araújo
- School of Animal Science and Food Engineering, University of Sao Paulo, Pirassununga, Sao Paulo, 13635-900, Brazil
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Mushtaq S, Yousaf Z, Anjum I, Arshad S, Aftab A, Maqbool Z, Shahzadi Z, Ullah R, Ali EA. Application of green synthesized magnesium oxide nanoparticles to prolong commercial availability of Vitis vinifera L. Food Chem X 2024; 21:101157. [PMID: 38317670 PMCID: PMC10839251 DOI: 10.1016/j.fochx.2024.101157] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/30/2023] [Accepted: 01/21/2024] [Indexed: 02/07/2024] Open
Abstract
The objective of the study was to extend shelf life of Vitis vinifera (L.) by the application of green synthesized Magnesium oxide nanoparticles. Aqueous leaf extract of Azadirachta indica A. juss. and various concentrations of 20 mM, 30 mM, and 40 mM solutions of Magnesium nitrate hexa hydrate salt, were used to synthesize nanoparticles of different size. The characterization of nanoparticles was done by SEM, XRD, and UV. The antimicrobial activity of MgO NPs was evaluated for Azospirilum brasilense and Trichoderma viride, representative of microbes responsible for V. vinifera fruits spoilage. Nanoparticles with crystal size of 28.60 nm has more pronounced effect against microbes. The Shelf life of the Vitis vinifera L. was evaluated by application of 28.60 nm MgO NPs through T1 (nanoparticles coated on packaging), T2 (nanoparticles coated directly on fruit) at 4 °C and 25 °C. T1 at 4 °C was effective to extend the shelf life of Vitis vinifera (L) for an average of 20 days.
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Affiliation(s)
- Shahneela Mushtaq
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Zubaida Yousaf
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Irfan Anjum
- Department of Basic Medical Sciences, Shifa College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad, Pakistan
| | - Shahzeena Arshad
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Arusa Aftab
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Zainab Maqbool
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Zainab Shahzadi
- Department of Botany, Lahore College for Women University, Lahore, Pakistan
| | - Riaz Ullah
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Essam A. Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Bapat RA, Mak KK, Pichika MR, Pang JC, Lin SL, Khoo SP, Daood U. Newly discovered clouting interplay between matrix metalloproteinases structures and novel quaternary Ammonium K21: computational and in-vivo testing. BMC Oral Health 2024; 24:382. [PMID: 38528501 DOI: 10.1186/s12903-024-04069-0] [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: 12/11/2023] [Accepted: 02/24/2024] [Indexed: 03/27/2024] Open
Abstract
AIMS AND OBJECTIVES To analyze anti-MMP mode of action of Quaternary Ammonium Silane (QAS, codenamed as k21) by binding onto specific MMP site using computational molecular simulation and Anti-Sortase A (SrtA) mode of action by binding onto specific site using computational molecular simulation. MATERIALS AND METHODS In silico Molecular Dynamics (MD) was used to determine the interactions of K21 inside the pocket of the targeted protein (crystal structure of fibroblast collagenase-1 complexed to a diphenyl-ether sulphone based hydroxamic acid; PDB ID: 966C; Crystal structure of MMP-2 active site mutant in complex with APP-derived decapeptide inhibitor. MD simulations were accomplished with the Desmond package in Schrödinger Drug Discovery Suite. Blood samples (~ 0.5 mL) collected into K2EDTA were immediately transferred for further processing using the Litron MicroFlow® PLUS micronucleus analysis kit for mouse blood according to the manufacturer's instructions. Bacterial Reverse Mutation Test of K21 Molecule was performed to evaluate K21 and any possible metabolites for their potential to induce point mutations in amino acid-requiring strains of Escherichia coli (E. coli) (WP2 uvrA (tryptophan-deficient)). RESULTS Molecular Simulation depicted that K21 has a specific pocket binding on various MMPs and SrtA surfaces producing a classical clouting effect. K21 did not induce micronuclei, which are the result of chromosomal damage or damage to the mitotic apparatus, in the peripheral blood reticulocytes of male and female CD-1 mice when administered by oral gavage up to the maximum recommended dose of 2000 mg/kg. The test item, K21, was not mutagenic to Salmonella typhimurium (S. typhimurium) strains TA98, TA100, TA1535 and TA1537 and E. coli strain WP2 uvrA in the absence and presence of metabolic activation when tested up to the limit of cytotoxicity or solubility under the conditions of the test. CONCLUSION K21 could serve as a potent protease inhibitor maintaining the physical and biochemical properties of dental structures.
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Affiliation(s)
- Ranjeet Ajit Bapat
- Restorative Dentistry Division, School of Dentistry, International Medical University Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Kit-Kay Mak
- School of Pharmacy, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Mallikarjuna Rao Pichika
- School of Pharmacy, International Medical University Kuala Lumpur, 126, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Jia Chern Pang
- School of Postgraduate Studies, International Medical University, 57000, Kuala Lumpur, Malaysia
| | - Seow Liang Lin
- Restorative Dentistry Division, School of Dentistry, International Medical University Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Suan Phaik Khoo
- Division of Clinical Oral Health, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Umer Daood
- Restorative Dentistry Division, School of Dentistry, International Medical University Kuala Lumpur, Kuala Lumpur, Malaysia.
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Arulvendhan V, Saravana Bhavan P, Rajaganesh R. Molecular Identification and Phytochemical Analysis and Bioactivity Assessment of Catharanthus roseus Leaf Extract: Exploring Antioxidant Potential and Antimicrobial Activities. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04902-w. [PMID: 38526661 DOI: 10.1007/s12010-024-04902-w] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2024] [Indexed: 03/27/2024]
Abstract
Plants have long been at the main focus of the medical industry's attention due to their extensive list of biological and therapeutic properties and ethnobotanical applications. Catharanthus roseus, sometimes referred to as Nithyakalyani in Tamil, is an Apocynaceae family member used in traditional Indian medicine. It also examines the plant's potential antimicrobial and antioxidant activities as well as its preliminary phytochemical makeup. Leaf material from C. roseus was analyzed and found to include a variety of phytochemicals including alkaloids, terpenoids, flavonoids, tannins, phenols, saponins, glycosides, quinones, and steroids. Four of the seven secondary metabolic products discovered in C. roseus leaves showed bioactive principles: 3-methylmannoside, squalene, pentatriacontane, and 2,4,4-trimethyl-3-hydroxymethyl-5a-(3-methyl-but-2-enyl)-cyclohexene. Catharanthus roseus is rich in the anticancer compounds vinblastine and vincristine. Whole DNA was isolated from fresh leaves, then amplified, sequenced, and aligned to find prospective DNA barcode candidates. One DNA marker revealed the restricted genetic relationship among C. roseus based on genetic distance and phylogenetic analysis. The antioxidant activity of the plant extract was evaluated using the DPPH, ABTS, phosphomolybdenum, FRAP, and superoxide radical scavenging activity assays, while the antibacterial potential was evaluated using the agar well diffusion assay. The ethanol extract of C. roseus was found to have the highest reducing power. In addition, a 4- to 21-mm-wide zone of inhibition was seen when the C. roseus extract was tested against bacterial and fungal stains. In conclusion, C. roseus has the most promise as an antibacterial and antioxidant agent.
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Affiliation(s)
- Velusamy Arulvendhan
- Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India
| | - Periyakali Saravana Bhavan
- Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India.
| | - Rajapandian Rajaganesh
- Department of Zoology, School of Life Sciences, Bharathiar University, Coimbatore, 641046, Tamil Nadu, India.
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Williams TC, Asselin E, Mazzulli T, Woznow T, Hamzeh H, Nahkaie D, Waisman D, Stojkova B, Dixon R, Bryce E, Charles M. One-year trial evaluating the durability and antimicrobial efficacy of copper in public transportation systems. Sci Rep 2024; 14:6765. [PMID: 38514805 PMCID: PMC10958017 DOI: 10.1038/s41598-024-56225-9] [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: 12/26/2023] [Accepted: 03/04/2024] [Indexed: 03/23/2024] Open
Abstract
Surfaces on transit vehicles are frequently touched and could potentially act as reservoirs for micro-organism transmission. Regular cleaning and disinfection to minimize the spread of micro-organisms is operationally challenging due to the need to keep vehicles in circulation. The application of copper (Cu) alloys to high- touch surfaces could help reduce the risk of cross-contamination, however, little is known about the durability and efficacy of engineered copper surfaces after prolonged use. Three Cu products (decal, thermal fabrication, and alloy covers) were assessed over a 12-month period. These Cu products were randomly installed on 110 stanchions on three buses and four train (SkyTrain) cars in Vancouver and three buses, two subway cars, and two streetcars in Toronto with mirrored control surfaces directly opposite. Bacterial counts (Colony forming units, CFU) and ATP bioluminescence (ATPB) were measured every two months after peak morning routes. Durability of the Cu products were assessed monthly through visual inspection and colorimetry assays or by ex-situ microscopy. Cu products on stanchions reduced the mean colony forming units (CFU) of all vehicles by 42.7% in the mean CFU (0.573 (CI 95% 0.453-0.726), p-value < 0.001) compared to control surfaces. The three Cu products exhibited an overall 87.1% reduction in the mean ATPB readings (0.129 (CI 95% 0.059-0.285, p-value < 0.001) compared to controls. Surface Cu concentration for all three products was consistent throughout the 12-month period. Electron microscopy (SEM) and Energy-dispersive X-ray Spectroscopy (EDS) cross-sectional analysis showed no change in thickness or dealloying of Cu products, however SEM top-down analysis revealed substantial carbon accumulation on all surfaces. Cu products installed on transit vehicles maintained antimicrobial efficacy and durability after 12 months of use.
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Affiliation(s)
- Teresa C Williams
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Edouard Asselin
- Department of Materials Engineering, University of British Columbia, Vancouver, BC, Canada
| | - Tony Mazzulli
- Department of Microbiology, Mount Sinai Hospital, Toronto, Canada
| | - Tracey Woznow
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Hadi Hamzeh
- Department of Microbiology, Mount Sinai Hospital, Toronto, Canada
| | - Davood Nahkaie
- Department of Materials Engineering, University of British Columbia, Vancouver, BC, Canada
| | | | - Biljana Stojkova
- Department of Statistics, University of British Columbia, Vancouver, BC, Canada
| | - Richard Dixon
- Community & Healthcare Acquired Infection Reduction (CHAIR), Vancouver, Canada
| | - Elizabeth Bryce
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, BC, Canada
| | - Marthe Charles
- Division of Medical Microbiology and Infection Prevention, Vancouver Coastal Health, Vancouver, BC, Canada.
- Division of Medical Microbiology and Infection Prevention, Vancouver General Hospital, 1116 - 855 West 12th Avenue, Vancouver, BC, V5Z 1M9, Canada.
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18
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Baz AM, Elwy E, Ahmed WA, El-Sayed H. Metabolic profiling, antimicrobial, anticancer, and in vitro and in silico immunomodulatory investigation of Aspergillus niger OR730979 isolated from the Western Desert, Egypt. Int Microbiol 2024:10.1007/s10123-024-00503-z. [PMID: 38506948 DOI: 10.1007/s10123-024-00503-z] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/29/2023] [Accepted: 03/07/2024] [Indexed: 03/22/2024]
Abstract
Ten fungal species were isolated from soil in the Western Desert and Wadi El-Natron in Egypt. All fungal isolates were morphologically recognized down to the species level. Methanol extracts of fungal mycelia and ethyl acetate extracts of culture filtrate from the isolated fungi were evaluated for antimicrobial activity against six pathogenic bacteria and one pathogenic yeast (Candida albicans ATCC20231). Only ethyl acetate extracts of Fusarium circinatum, Aspergillus niger, and Aspergillus terreus culture filtrates showed significant antimicrobial activity against the majority of the investigated pathogens. The culture filtrate extract of Aspergillus niger exhibited notable cytotoxicity towards the breast cancer (MCF-7) cell line, with the lowest detected IC50 recorded at 8 μg/μl. Whereas Fusarium circinatum and Aspergillus terreus had IC50s of 15.91 μg/μl and 18 μg/μl, respectively. A gas chromatography-mass spectroscopy (GC-MS) investigation of A. niger's potent extract revealed 23 compounds with different biological activities. Glycidyleoleate was found to be the main extract component. Aspergillus niger extract was chosen to study its possible cytotoxic mechanism. The extract was found to induce apoptosis and cell cycle arrest at the < 2n stage. Despite a significant increase in caspases 8 and 9, the production levels of tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) have shown a significant decrease. The high interaction of glycidyleoleate against the studied cytokines' binding receptors was demonstrated via docking studies. In conclusion, the available data revealed that the culture filtrate extract of A. niger possesses promising antimicrobial, cytotoxic, and immunomodulatory properties.
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Affiliation(s)
- Amira M Baz
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Esmat Elwy
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza, Egypt
| | - Wafaa A Ahmed
- Biochemistry and Molecular Biology Unit, Department of Cancer Biology, National Cancer Institute, Cairo University, Giza, Egypt
| | - Heba El-Sayed
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo, Egypt.
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19
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Abdallah WE, Shams KA, El-Shamy AM. Phytochemical analysis and evaluation of its antioxidant, antimicrobial, and cytotoxic activities for different extracts of Casuarina equisetifolia. BMC Complement Med Ther 2024; 24:128. [PMID: 38509538 PMCID: PMC10956242 DOI: 10.1186/s12906-024-04422-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 02/29/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Casuarina equisetifolia belongs to the Casuarina species with the most extensive natural distribution, which contain various phytochemicals with potential health benefits. This study aimed to investigate the chemical composition and biological activities of different extracts of Casuarina equisetifolia. METHODS The n-hexane extract was analyzed for its unsaponifiable and fatty acid methyl esters fractions, while chloroform, ethyl acetate, and butanol extracts were studied for their phenolic components. Six different extracts of C. equisetifolia needles were evaluated for their total phenolic content, total flavonoid content, and their antioxidant, antimicrobial, and cytotoxic activities. RESULTS The n-hexane extract contained mainly hydrocarbons and fatty acid methyl esters, while ten phenolic compounds were isolated and identified in the chloroform, ethyl acetate, and butanol extracts. The methanolic extract exhibited the highest total phenolic and flavonoid content, highest antioxidant activity, and most potent cytotoxic activity against HepG-2 and HCT-116 cancer cell lines. The ethyl acetate extract showed the most significant inhibition zone against Staphylococcus aureus and Bacillus subtilis. CONCLUSION Casuarina equisetifolia extracts showed promising antioxidant, antimicrobial, and cytotoxic activities. Overall, Casuarina equisetifolia is a versatile tree with a variety of uses, and its plant material can be used for many different purposes.
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Affiliation(s)
- Walid Elsayed Abdallah
- Chemistry of Medicinal Plants Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 El Buhouth St. (FormerEl Tahrir St.), Dokki, Giza, 12622, Egypt.
| | - Khaled Ahmed Shams
- Chemistry of Medicinal Plants Department, Pharmaceutical and Drug Industries Research Institute, National Research Centre, 33 El Buhouth St. (FormerEl Tahrir St.), Dokki, Giza, 12622, Egypt
| | - Ashraf Moursi El-Shamy
- Physical Chemistry Department, Electrochemistry and Corrosion Lab, National Research Centre, El-Bohouth St. 33, Dokki, Giza, 12622, Egypt
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20
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Naithani K, Bhowmik S. Trends in the Synthesis of Antimicrobial Derivatives by using the Gewald, Strecker, and Groebke-Blackburn-Bienaymé (GBB) Reactions. Med Chem 2024; 20:MC-EPUB-139320. [PMID: 38523542 DOI: 10.2174/0115734064282699240315042428] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/03/2024] [Accepted: 02/09/2024] [Indexed: 03/26/2024]
Abstract
BACKGROUND Multicomponent reactions are highly useful in synthesizing natural products and bioactive molecules. Out of several MCRs, although utilized widely, some remain neglected in review articles. The Gewald and Groebke-Blackburn-Bienaymé (GBB) reactions are two such reactions. This comprehensive review assimilates applications of Gewald and Groebke-Blackburn- Bienayme reactions in synthesizing novel antimicrobial agents. It presents the antimicrobial properties of the synthesized molecules, providing an overview of their potential druggability. OBJECTIVE Developing novel antimicrobial agents is the need of the hour. Toward this objective, the scientific community is developing new methods for constructing novel architectures with potential antimicrobial properties. This review will showcase the usefulness of the Gewald, Strecker, and Groebke-Blackburn-Bienaymé (GBB) reactions in synthesizing antimicrobial molecules. METHOD The articles are searched by using the Sci-finder search tool and summarize the chemistry of their synthesis and antimicrobial evaluation of the molecules Results: This review focuses on synthesizing antimicrobial molecules using the Gewald, Strecker, and Groebke-Blackburn-Bienaymé (GBB) reactions. The antimicrobial activities of the synthesized molecules are also summarized in tables. CONCLUSION This review will briefly overview the application of the Gewald, Strecker, and Groebke- Blackburn-Bienaymé (GBB) reactions in synthesizing novel antimicrobial molecules. It contains several molecules with promising activity against resistant and non-resistant microbial strains. These promising molecules could be studied further to develop novel antibiotics.
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Affiliation(s)
- Kaushal Naithani
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, 168 Maniktala Main Road, Kolkata-700054, West Bengal, India
| | - Subhendu Bhowmik
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research, 168 Maniktala Main Road, Kolkata-700054, West Bengal, India
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21
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Narayan A, Patel S, B Baile S, Jain S, Sharma S. Imidazo[1,2-A]Pyridine: Potent Biological Activity, SAR and Docking In-vestigations (2017-2022). Infect Disord Drug Targets 2024; 24:IDDT-EPUB-139243. [PMID: 38509674 DOI: 10.2174/0118715265274067240223040333] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/23/2023] [Accepted: 12/15/2023] [Indexed: 03/22/2024]
Abstract
BACKGROUND Regarding scientific research, Imidazo[1,2-a] pyridine derivatives are constantly being developed due to the scaffold's intriguing chemical structure and varied bio-logical activity. They are distinctive organic nitrogen-bridged heterocyclic compounds that have several uses in medicines, organometallics and natural products. It has become a vital tool for medicinal chemists. METHODS In order to gather scientific information on Imidazo[1,2-a] pyridines derivative, Google, PubMed, Scopus, Google Scholar, and other databases were searched. In the current study, the medicinal value and therapeutic effect of Imidazo[1,2-a] pyridines were investigated using above mentioned databases. The current study analyzed the detailed pharmacological ac-tivities of Imidazo[1,2-a] pyridine analogs through literature from diverse scientific research works. RESULTS Due to its wide range of biological activities, including antiulcer, anticonvulsant, anti-protozoal, anthelmintic, antiepileptic, antifungal, antibacterial, analgesic, antiviral, anticancer, anti-inflammatory, antituberculosis, and antitumor properties, imidazopyridine is one of the most significant structural skeletons in the field of natural and pharmaceutical products. An imidazopyridine scaffold serves as the basis for a number of therapeutically utilized medica-tions, including zolpidem, alpidem, olprinone, zolimidine, and necopidem. CONCLUSION This comprehensive study covers the period of the last five years, and it sheds light on the developments and emerging pharmacological actions of Imidazo[1,2-a] pyridines. Additionally, the structure-activity relationship and molecular docking studies are carefully documented throughout the paper, providing medicinal chemists with a clear picture for devel-oping new drugs.
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Affiliation(s)
- Aditya Narayan
- Centre for Pharmaceutical Engineering Science, School of Pharmacy and Medical Sciences, University of Bradford, Rich-mond Road, Bradford BD7 1DP, United Kingdom
| | - Shivkant Patel
- Department of Pharmacy, Sumandeep Vidyapeeth Deemed to be Uni-versity, At & Po. Piparia, Ta. Waghodia, 391760, Vadodara, Gujarat, India
| | - Sunil B Baile
- Department of Pharmacy, Sumandeep Vidyapeeth Deemed to be Uni-versity, At & Po. Piparia, Ta. Waghodia, 391760, Vadodara, Gujarat, India
| | - Surabhi Jain
- B. Pharmacy College Rampura-kakanpur, (Gujarat Technological University), Panchmahals, Gujarat, India
| | - Smriti Sharma
- Amity Institute of Pharmacy, Amity University, Sector-125, Noida, 201313, India
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22
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Montazerozohori M, Nejadmirfathi M, Naghiha R, Kokhdan EP. New penta-coordinated cadmium(II) complexes: Synthesis, Characterization, Thermal, Antimicrobial, Antioxidant and Cytotoxicity Properties. Chem Biodivers 2024:e202301667. [PMID: 38502834 DOI: 10.1002/cbdv.202301667] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/25/2024] [Accepted: 03/13/2024] [Indexed: 03/21/2024]
Abstract
In this paper, a new tridentate Schiff base ligand (L) with nitrogen donor atoms and its cadmium(II) complexes with the general formula of CdLX2 (X= Cl-,Br-,I-,SCN-,N3-,NO3-) have been synthesized and characterized by physical and spectral methods. Also nano-structured cadmium chloride and bromide complexes were synthesized by sonochemical method and then used to prepare nanostructured cadmium oxide confirmed by XRD and SEM techniques. Thermal behavior of the compounds was studied in the temperature range of 25 to 900 °C under N2 atmosphere at a heating rate of 20 °C/ min. Moreover, thermo-kinetic activation parameters of thermal decomposition steps were calculated according to the Coats-Redfern relationship. Antimicrobial activities of the synthesized compounds against two gram-positive and two gram-negative bacteria and two fungi were investigated by well diffusion method. SEM technique was used to monitor the morphological changes of the bacteria treated with the compounds. The DPPH and the ferric reducing antioxidant power (FRAP) methods were used to evaluate the antioxidant ability of the ligand and its cadmium(II) complexes. In final, the cytotoxicity properties of the ligand and some cadmium(II) complexes against PC3 cancer cells were evaluated by MTT bioassay and nitric oxide (NO) level measurement.
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Affiliation(s)
- Morteza Montazerozohori
- Yasouj University, Chemistry, Daneshjoo Street, 7591774831, Yasouj, IRAN (ISLAMIC REPUBLIC OF)
| | - M Nejadmirfathi
- Yasouj University, chemistry, Daneshjoo, Yasouj, IRAN (ISLAMIC REPUBLIC OF)
| | - R Naghiha
- Yasouj University, Animal Science, Daneshjoo, Yasouj, IRAN (ISLAMIC REPUBLIC OF)
| | - E Panahi Kokhdan
- Yasooj University of Medical Sciences Kohkiloyeh: Yasuj University of Medical Sciences, Research center of Medical Plants, --, Yasouj, IRAN (ISLAMIC REPUBLIC OF)
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23
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Ramesh G, Daravath S, Babu KJ, Dharavath R, Ranjan A, Ayodhya D, Shivaraj. Design, Synthesis, Structural Investigation and Photo Induced Biological Investigations of Co(II), Ni(II) and Cu(II) Complexes Derived from N,O Donor Schiff Bases. J Fluoresc 2024:10.1007/s10895-024-03657-1. [PMID: 38502407 DOI: 10.1007/s10895-024-03657-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 03/01/2024] [Indexed: 03/21/2024]
Abstract
A series of chelated metal complexes, [Co(LI)2] (1), [Ni(LI)2] (2), [Cu(LI)2] (3) [Co(LII)2] (4), [Ni(LII)2] (5) and [Cu(LII)2] (6) were designed and synthesized from newly synthesized Schiff bases, LI = 2-((E)-(5-(4-fluorophenyl)isoxazol-3-ylimino)methyl)-5-methylphenol and LII = 2-((E)-(5-(4-fluorophenyl)isoxazol-3-ylimino)methyl)-4-chlorophenol. The synthesized compounds were characterized by elemental analysis, nuclear magnetic resonance spectroscopy (NMR), electronic spectroscopy (UV-Vis), infrared spectroscopy (FT-IR), magnetic susceptibility (µeff), electron spin resonance spectroscopy (ESR), Thermogravimetric analysis (TGA), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and powder X-ray diffraction analysis (P-XRD). The spectral investigations have been clearly suggested 1:2 (metal: ligand) stoichiometric complexes with square planar geometrical arrangement around the metal ion. The thermal gravimmetric analysis (TGA) of these complexes indicates greater thermal stability and various steps involved in thermal decomposition of metal complexes. The binding ability between these metal complexes and calf thymus DNA (CT-DNA) was investigated by UV-Vis, fluorescence spectroscopy and viscometric experiments, which disclosed that, the complexes interacted to CT-DNA via an intercalation binding mode. The cleavage property of metal complexes against pBR322 DNA has been explored by gel electrophoresis technique mediated by UV-illumination and H2O2, showed momentous cleavage activity. Antioxidant activity of all complexes was determined by DPPH free radical scavenging experiment and showed prominent antioxidant activity. Further, the antibacterial and antifungal activities of all compounds were screened against bacterial and fungal strains via in-vitro disc diffusion method. These studies revealed that the complexes showed comparatively more antimicrobial activity than free ligands against tested microbial strains.
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Affiliation(s)
- Gali Ramesh
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
| | - Sreenu Daravath
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
| | - K Jagadesh Babu
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
- Department of Chemistry, Kakathiya Govt.College, Hanmakonda, Warangal (Dist), Telangana, 506001, India
| | - Ravinder Dharavath
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India
- Department of Chemistry, SRT Campus, Badshahitaul HNB Garhwal University, Tehri Garhwal, Uttarakhand, 249199, India
| | - Amit Ranjan
- Department of Applied Sciences and Humanities, Purnea College of Engineering (PCE), Bihar Engineering University Patna, DSTTE, Patna, Purnea, 854303, India
| | - Dasari Ayodhya
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India.
- Chemical Group, Intellectual Property India, Patent Office, Chennai, Tamil Nadu, 600032, India.
| | - Shivaraj
- Department of Chemistry, Osmania University, Hyderabad, Telangana, 500007, India.
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24
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Méndez LR, Rodríguez-Cornejo T, Rodríguez-Ramos T, Al-Hussinee L, Velázquez J, Campbell JH, Carpio Y, Estrada MP, Dixon B. PACAP sequence modifications modulate the peptide antimicrobial activity against bacterial pathogens affecting aquaculture. Fish Shellfish Immunol 2024; 148:109512. [PMID: 38499216 DOI: 10.1016/j.fsi.2024.109512] [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: 01/23/2024] [Revised: 03/05/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
The global aquaculture industry has significant losses each year due to disease outbreaks. Antibiotics are one of the common methods to treat fish infections, but prolonged use can lead to the emergence of resistant strains. Aeromonas spp. Infections are a common and problematic disease in fish, and members of this genera can produce antibiotic resistant strains. Antimicrobial peptides (AMPs) have emerged as an alternative method to treat and prevent infections and pituitary adenylate cyclase activating polypeptide (PACAP) is a prominent member of this family. The objective of this research was to study PACAP's direct antimicrobial activity and its toxicity in fish cells. Four synthetic variants of the natural PACAP from Clarias gariepinus were tested in addition to the natural variant. The experimental results show a different antimicrobial activity against A. salmonicida and A. hydrophila of each PACAP variant, and for the first time show dependence on the culture broth used. Furthermore, the results suggest that the underlying mechanism of PACAP antimicrobial activity includes a bacterial membrane permeabilizing effect, classifying PACAP as a membrane disruptive AMP. This study also demonstrated that the five PACAP variants evaluated showed low toxicity in vitro, at concentrations relevant for in vivo applications. Therefore, PACAP could be a promising alternative to antibiotics in the aquaculture sector.
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Affiliation(s)
- Laura Rivera Méndez
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada
| | | | - Tania Rodríguez-Ramos
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada
| | - Lowia Al-Hussinee
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada; Animal Health Laboratory, OVC, Guelph University, Canada
| | - Janet Velázquez
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - James Hugh Campbell
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada
| | - Yamila Carpio
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Mario Pablo Estrada
- Animal Biotechnology Department, Center for Genetic Engineering and Biotechnology (CIGB), P.O. Box 6162, Havana, 10600, Cuba
| | - Brian Dixon
- Department of Biology, University of Waterloo, 200 University Ave W., Waterloo, ON, Canada.
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25
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Ozkan E, Estes Bright LM, Kumar A, Pandey R, Devine R, Francis D, Ghalei S, Ashcraft M, Maffe P, Brooks M, Shome A, Garren M, Handa H. Bioinspired superhydrophobic surfaces with silver and nitric oxide-releasing capabilities to prevent device-associated infections and thrombosis. J Colloid Interface Sci 2024; 664:928-937. [PMID: 38503078 DOI: 10.1016/j.jcis.2024.03.082] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
Bacteria-associated infections and thrombus formation are the two major complications plaguing the application of blood-contacting medical devices. Therefore, functionalized surfaces and drug delivery for passive and active antifouling strategies have been employed. Herein, we report the novel integration of bio-inspired superhydrophobicity with nitric oxide release to obtain a functional polymeric material with anti-thrombogenic and antimicrobial characteristics. The nitric oxide release acts as an antimicrobial agent and platelet inhibitor, while the superhydrophobic components prevent non-specific biofouling. Widely used medical-grade silicone rubber (SR) substrates that are known to be susceptible to biofilm and thrombus formation were dip-coated with fluorinated silicon dioxide (SiO2) and silver (Ag) nanoparticles (NPs) using an adhesive polymer as a binder. Thereafter, the resulting superhydrophobic (SH) SR substrates were impregnated with S-nitroso-N-acetylpenicillamine (SNAP, an NO donor) to obtain a superhydrophobic, Ag-bound, NO-releasing (SH-SiAgNO) surface. The SH-SiAgNO surfaces had the lowest amount of viable adhered E. coli (> 99.9 % reduction), S. aureus (> 99.8 % reduction), and platelets (> 96.1 % reduction) as compared to controls while demonstrating no cytotoxic effects on fibroblast cells. Thus, this innovative approach is the first to combine SNAP with an antifouling SH polymer surface that possesses the immense potential to minimize medical device-associated complications without using conventional systemic anticoagulation and antibiotic treatments.
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Affiliation(s)
- Ekrem Ozkan
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Lori M Estes Bright
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Anil Kumar
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Rashmi Pandey
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Ryan Devine
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Divine Francis
- Department of Chemistry, University of Georgia, Athens, GA 30602, USA
| | - Sama Ghalei
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Morgan Ashcraft
- Pharmaceutical and Biomedical Sciences Department, College of Pharmacy, University of Georgia, Athens, GA 30602, USA
| | - Patrick Maffe
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Megan Brooks
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Arpita Shome
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Mark Garren
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA
| | - Hitesh Handa
- School of Chemical, Materials, and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA 30602, USA; Pharmaceutical and Biomedical Sciences Department, College of Pharmacy, University of Georgia, Athens, GA 30602, USA.
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26
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Lu F, Xia K, Su J, Yi J, Luo Z, Xu J, Gu Q, Chen B, Zhou H. Biochemical and structural characterization of chlorhexidine as an ATP-assisted inhibitor against type 1 methionyl-tRNA synthetase from Gram-positive bacteria. Eur J Med Chem 2024; 268:116303. [PMID: 38458107 DOI: 10.1016/j.ejmech.2024.116303] [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: 01/14/2024] [Revised: 02/27/2024] [Accepted: 03/02/2024] [Indexed: 03/10/2024]
Abstract
Methionyl-tRNA synthetase (MetRS) catalyzes the attachment of l-methionine (l-Met) to tRNAMet to generate methionyl-tRNAMet, an essential substrate for protein translation within ribosome. Owing to its indispensable biological function and the structural discrepancies with human counterpart, bacterial MetRS is considered an ideal target for developing antibacterials. Herein, chlorhexidine (CHX) was identified as a potent binder of Staphylococcus aureus MetRS (SaMetRS) through an ATP-aided affinity screening. The co-crystal structure showed that CHX simultaneously occupies the enlarged l-Met pocket (EMP) and the auxiliary pocket (AP) of SaMetRS with its two chlorophenyl groups, while its central hexyl linker swings upwards to interact with some conserved hydrophobic residues. ATP adopts alternative conformations in the active site cavity, and forms ionic bonds and water-mediated hydrogen bonds with CHX. Consistent with this synergistic binding mode, ATP concentration-dependently enhanced the binding affinity of CHX to SaMetRS from 10.2 μM (no ATP) to 0.45 μM (1 mM ATP). While it selectively inhibited two representative type 1 MetRSs from S. aureus and Enterococcus faecalis, CHX did not show significant interactions with three tested type 2 MetRSs, including human cytoplasmic MetRS, in the enzyme inhibition and biophysical binding assays, probably due to the conformational differences between two types of MetRSs at their EMP and AP. Our findings on CHX may inspire the design of MetRS-directed antimicrobials in future.
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Affiliation(s)
- Feihu Lu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Kaijiang Xia
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jingtian Su
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jia Yi
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhiteng Luo
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Bingyi Chen
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
| | - Huihao Zhou
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China; Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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27
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Sirati R, Khajehrahimi AE, Kazempoor R, Kakoolaki S, Ghorbanzadeh A. Development, physicochemical characterization, and antimicrobial evaluation of niosome-loaded oregano essential oil against fish-borne pathogens. Heliyon 2024; 10:e26486. [PMID: 38463865 PMCID: PMC10920168 DOI: 10.1016/j.heliyon.2024.e26486] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/08/2024] [Accepted: 02/14/2024] [Indexed: 03/12/2024] Open
Abstract
Objective Niosomes have gained attention as a promising drug delivery system for enhancing the antimicrobial and anti-biofilm effects of natural compounds. Oregano essential oil has demonstrated potent antimicrobial and anti-biofilm properties against food-borne pathogens. Methods In this study, researchers aimed to explore the use of niosomes as a delivery system to improve the efficacy of oregano essential oil against food-borne pathogens. The structural and morphological properties of different niosome formulations were examined. Different formulations of niosomes were prepared and their structural and morphological properties were examined. The antimicrobial and anti-biofilm effects of niosomes containing oregano essential oil were evaluated using microbroth-dilution and microtiter-plate methods, respectively. The biocompatibility of the synthesized niosomes was assessed using the MTT method on human foreskin fibroblasts normal cell line (HFF). Results The optimal formulation of niosomes had an average size of 219 nm and an encapsulation efficiency of 61.22%. The release study demonstrated that 58% of the essential oil was released from niosomes, while 100% was released from free essential oil. Furthermore, the antimicrobial and anti-biofilm effects of the essential oil were found to be 2-4 times higher when loaded in niosomes. The biocompatibility test confirmed that the synthesized empty niosomes had no cytotoxic effects on HFF cell line. Conclusion Niosomes encapsulating oregano essential oil demonstrated the capacity to inhibit the activity of genes associated with biofilm formation in pathogenic bacteria. This study highlights the significant antimicrobial and anti-biofilm effects of niosomes containing oregano essential oil, suggesting their potential as a suitable drug delivery system.
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Affiliation(s)
- Rameen Sirati
- Department of Aquatic Animal Health and Diseases, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amir Eghbal Khajehrahimi
- Department of Aquatic Animal Health and Diseases, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Reza Kazempoor
- Department of Aquatic Animal Health and Diseases, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shapoor Kakoolaki
- Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
| | - Arman Ghorbanzadeh
- Department of Aquatic Animal Health and Diseases, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Zhang Y, Feng L, Hemu X, Tan NH, Wang Z. OSMAC Strategy: A promising way to explore microbial cyclic peptides. Eur J Med Chem 2024; 268:116175. [PMID: 38377824 DOI: 10.1016/j.ejmech.2024.116175] [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: 09/18/2023] [Revised: 01/12/2024] [Accepted: 01/22/2024] [Indexed: 02/22/2024]
Abstract
Microbial secondary metabolites are pivotal for the development of novel drugs. However, conventional culture techniques, have left a vast array of unexpressed biosynthetic gene clusters (BGCs) in microorganisms, hindering the discovery of metabolites with distinct structural features and diverse biological functions. To address this limitation, several innovative strategies have been emerged. The "One Strain Many Compounds" (OSMAC) strategy, which involves altering microbial culture conditions, has proven to be particularly effective in mining numerous novel secondary metabolites for the past few years. Among these, microbial cyclic peptides stand out. These peptides often comprise rare amino acids, unique chemical structures, and remarkable biological function. With the advancement of the OSMAC strategy, a plethora of new cyclic peptides have been identified from diverse microbial genera. This work reviews the progress in mining novel compounds using the OSMAC strategy and the applications of this strategy in discovering 284 microbial cyclic peptides from 63 endophytic strains, aiming to offer insights for the further explorations into novel active cyclic peptides.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Li Feng
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Xinya Hemu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China
| | - Ning-Hua Tan
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
| | - Zhe Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, China.
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Alemu B, Molla MD, Tezera H, Dekebo A, Asmamaw T. Phytochemical composition and in vitro antioxidant and antimicrobial activities of Bersama abyssinica F. seed extracts. Sci Rep 2024; 14:6345. [PMID: 38491116 PMCID: PMC10943032 DOI: 10.1038/s41598-024-56659-1] [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: 12/16/2023] [Accepted: 03/08/2024] [Indexed: 03/18/2024] Open
Abstract
Medicinal plants can be potential sources of therapeutic agents. Traditional healers use a medicinal plant from Ethiopia, Bersama abyssinica Fresen, to treat various diseases. This study aimed to investigate the phytochemical components and antioxidant and antimicrobial activities of B. abyssinica seed extracts (BASE). Gas chromatography coupled to mass spectroscopy (GC-MS) analysis was used to determine the phytochemical compositions of BASE. The antioxidant activities were assessed by using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay, thiobarbituric acid-reactive species (TBARS) assay, ferric chloride reducing assay and hydroxyl scavenging capacity assay. Antimicrobial activity was investigated using the agar well diffusion method. Phytochemical screening showed the presence of saponins, glycosides, tannins, steroids, phenols, flavonoids, terpenoids, and alkaloids. GC-MS analysis revealed the presence of 30 volatile compounds; α-pinene (23.85%), eucalyptol (20.74%), β-pinene (5.75%), D-limonene (4.05%), and o-cymene (5.02%). DPPH-induced free radical scavenging (IC50 = 8.78), TBARS (IC50 = 0.55 µg/mL), and hydroxyl radicals' scavenging capacities assays (IC50 = 329.23) demonstrated high antioxidant effects of BASE. Reducing power was determined based on Fe3+-Fe2+ transformation in the presence of extract. BASE was found to show promising antibacterial activity against S. aureus, E. coli, and P. aeruginosa (zone of inhibition 15.7 ± 2.5 mm, 16.0 ± 0.0 mm, and 16.7 ± 1.5 mm, respectively), but excellent antifungal activities against C. albican and M. furfur (zone of inhibition 22.0 ± 2.0 mm and 22.0 ± 4.0 mm, respectively). The seeds of B. abyssinica grown in Ethiopia possess high antioxidant potential, promising antibacterial and superior antifungal activity. Therefore, seeds of B. abyssinica provide a potential source for drug discovery.
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Affiliation(s)
- Belayhun Alemu
- Department of Biochemistry, School of Medicine, College of Medicine and Health Science, Dilla University, Dilla, Ethiopia.
| | - Meseret Derbew Molla
- Department of Biochemistry, School of Medicine, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Hiwot Tezera
- Department of Biochemistry, School of Medicine, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia
| | - Aman Dekebo
- Department of Applied Chemistry, School of Applied Natural Sciences, Adama Science and Technology University, Adama, Ethiopia
| | - Tadesse Asmamaw
- Department of Biochemistry, School of Medicine, College of Medicine and Health Science, University of Gondar, Gondar, Ethiopia
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Ferreira PFA, Rocha FI, Howe A, Barbosa DR, da Conceição Jesus E, do Amaral Sobrinho NMB, da Silva Coelho I. Chemical attributes, bacterial community, and antibiotic resistance genes are affected by intensive use of soil in agro-ecosystems of the Atlantic Forest, Southeastern Brazil. Environ Geochem Health 2024; 46:123. [PMID: 38483669 DOI: 10.1007/s10653-024-01894-8] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 01/29/2024] [Indexed: 03/19/2024]
Abstract
Soil is one of the largest reservoirs of microbial diversity in nature. Although soil management is vital for agricultural purposes, intensive practices can have a significant impact on fertility, microbial community, and resistome. Thus, the aim of this study was to evaluate the effects of an intensive soil management system on the chemical attributes, composition and structure of prevalent bacterial communities, and presence and abundance of antimicrobial resistance genes (ARGs). The chemical characterization, bacterial diversity and relative abundance of ARGs were evaluated in soils from areas of intensive vegetable cultivation and forests. Results indicate that levels of nutrients and heavy metals were higher in soil samples from cultivated areas. Similarly, greater enrichment and diversity of bacterial genera was detected in agricultural areas. Of the 18 target ARGs evaluated, seven were detected in studied soils. The oprD gene exhibited the highest abundance among the studied genes and was the only one that showed a significantly different prevalence between areas. The oprD gene was identified only from soil of the cultivated areas. The blaSFO, erm(36), oprD and van genes, in addition to the pH, showed greater correlation with in soil of cultivated areas, which in turn exhibited higher contents of nutrients. Thus, in addition to changes in chemical attributes and in the microbial community of the soil, intensive agricultural cultivation systems cause a modification of its resistome, reinforcing the importance of the study of antimicrobial resistance in a One Health approach.
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Affiliation(s)
- Paula Fernanda Alves Ferreira
- Departament of Soil, Institute of Agronomy, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil
| | - Fernando Igne Rocha
- Mokichi Okada Research Center, Korin Agriculture and Environment, Ipeúna, São Paulo, Brazil
| | - Adina Howe
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA, USA
| | - Daniele Rodrigues Barbosa
- Departament of Soil, Institute of Agronomy, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil
| | - Ederson da Conceição Jesus
- Embrapa Agrobiology, Brazilian Agricultural Research Corporation, Seropédica, Rio de Janeiro, 23891-000, Brazil
| | | | - Irene da Silva Coelho
- Department of Veterinary Microbiology and Immunology, Veterinary Institute, Federal Rural University of Rio de Janeiro, Seropédica, Rio de Janeiro, 23897-970, Brazil.
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Kalaskar M, Gavit A, Prabhu S, Gagarani M, Ugale V, Khadse S, Ayyanar M, Surana S, Tatiya A, Gurav S. Chemical composition, antioxidant, antimicrobial, and wound healing effects of Trachyspermum roxburghianum (DC.) H. Wolff essential oil: An in vivo and in silico approach. J Ethnopharmacol 2024; 327:118055. [PMID: 38484951 DOI: 10.1016/j.jep.2024.118055] [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: 02/11/2024] [Revised: 03/09/2024] [Accepted: 03/12/2024] [Indexed: 03/21/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Trachyspermum roxburghianum (DC.) H. Wolff, commonly known as 'Ajamoda,' is a neglected Indian spice highly used in Ayurveda and folklore remedies as an antimicrobial for chronic wounds and discharges, along with many other disease conditions. AIM OF THE STUDY The objective of the study was to explore chemical composition and to investigate the antioxidant, antimicrobial, analgesic, and wound healing activities of T. roxburghianum fruit essential oil from India. MATERIALS AND METHODS The phytochemical characterization of the oil was determined through standard qualitative procedures and the gas chromatography-mass spectrometry (GC-MS) technique. The in vitro antioxidant aptitude was assessed by scavenging DPPH and ABTS radicals. The antimicrobial potential of the oil was investigated using the disc diffusion method, followed by the determination of minimum inhibitory concentration against Gram-positive and Gram-negative bacterial and fungal strains. The analgesic potential was evaluated using thermal and chemically induced pain models in Swiss albino mice. Wound healing was assessed in vivo, including determining wound contraction rates, histopathology, and hydroxyproline estimation, using the excision wound model in Swiss albino mice. RESULTS GC-MS analysis identified 55 compounds with major terpenoids, including thymol (13.8%), limonene (11.5%), and others. Substantial radical-scavenging activity was exhibited by T. roxburghianum fruit essential oil (TREO) (IC50 94.41 ± 2.00 μg/mL in DPPH assay and 91.28 ± 1.94 μg/mL in ABTS assay). Microorganisms were inhibited with low MIC (2 μL/mL for the inhibition of Staphylococcus aureus and Bacillus subtilis; 4 μL/mL against Salmonella typhi and 16 μL/mL against Candida albicans). In the cytotoxicity study, no cytotoxicity was observed on the Monkey Normal Kidney Cell line (Vero). Significant antinociceptive effects were observed (25.47 ± 1.10 % of inhibition at 100 mg/kg and 44.31 ± 1.69 % at 200 mg/kg). A remarkable rate of wound closure and epithelization, along with a marked increase in hydroxyproline content, were observed for the oil during wound healing in mice. CONCLUSIONS The results suggested that oil could be utilized as a potential source of wound healing therapeutics.
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Affiliation(s)
- Mohan Kalaskar
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
| | - Anjali Gavit
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
| | - Srinivasan Prabhu
- Division of Phytochemistry and Drug Design, Department of Biosciences, Rajagiri College of Social Sciences, Kalamaserry, Kochi, 683 104, India.
| | - Manish Gagarani
- Department of Pharmacology, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
| | - Vinod Ugale
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research Shirpur, Maharashtra, 425405, India.
| | - Saurabh Khadse
- Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research Shirpur, Maharashtra, 425405, India.
| | - Muniappan Ayyanar
- Department of Botany, A. V. V. M. Sri Pushpam College (Affiliated to Bharathidasan University), Poondi, Thanjavur, Tamil Nadu, 613 503, India.
| | - Sanjay Surana
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
| | - Anilkumar Tatiya
- Department of Pharmacognosy, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
| | - Shailendra Gurav
- Department of Pharmacognosy, Goa College of Pharmacy, Panaji, Goa University, Goa, 403001, India.
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Miškovská A, Michailidu J, Kolouchová IJ, Barone L, Gornati R, Montali A, Tettamanti G, Berini F, Marinelli F, Masák J, Čejková A, Maťátková O. Biological activity of silver nanoparticles synthesized using viticultural waste. Microb Pathog 2024; 190:106613. [PMID: 38484919 DOI: 10.1016/j.micpath.2024.106613] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/05/2024] [Accepted: 03/09/2024] [Indexed: 03/21/2024]
Abstract
This research paper presents a novel approach to the green synthesis of silver nanoparticles (AgNPs) using viticultural waste, allowing to obtain NP dispersions with distinct properties and morphologies (monodisperse and polydisperse AgNPs, referred to as mAgNPs and pAgNPs) and to compare their biological activities. Our synthesis method utilized the ethanolic extract of Vitis vinifera pruning residues, resulting in the production of mAgNPs and pAgNPs with average sizes of 12 ± 5 nm and 19 ± 14 nm, respectively. Both these AgNPs preparations demonstrated an exceptional stability in terms of size distribution, which was maintained for one year. Antimicrobial testing revealed that both types of AgNPs inhibited either the growth of planktonic cells or the metabolic activity of biofilm sessile cells in Gram-negative bacteria and yeasts. No comparable activity was found towards Gram-positives. Overall, pAgNPs exhibited a higher antimicrobial efficacy compared to their monodisperse counterparts, suggesting that their size and shape may provide a broader spectrum of interactions with target cells. Both AgNP preparations showed no cytotoxicity towards a human keratinocyte cell line. Furthermore, in vivo tests using a silkworm animal model indicated the biocompatibility of the phytosynthesized AgNPs, as they had no adverse effects on insect larvae viability. These findings emphasize the potential of targeted AgNPs synthesized from viticultural waste as environmentally friendly antimicrobial agents with minimal impact on higher organisms.
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Affiliation(s)
- Anna Miškovská
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic.
| | - Jana Michailidu
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | | | - Ludovica Barone
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Rosalba Gornati
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Aurora Montali
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy
| | - Gianluca Tettamanti
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy; Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, Portici, Italy
| | - Francesca Berini
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy; Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, Portici, Italy
| | - Flavia Marinelli
- Department of Biotechnology and Life Sciences, University of Insubria, Varese, Italy; Interuniversity Center for Studies on Bioinspired Agro-Environmental Technology, University of Naples Federico II, Portici, Italy
| | - Jan Masák
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Alena Čejková
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Olga Maťátková
- Department of Biotechnology, University of Chemistry and Technology Prague, Prague, Czech Republic
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Thirumalaivasan N, Kanagaraj K, Logesh K, Chandrasekaran S, Kumar S, Subramanian R, Senthilkumar N, Kumar A, Angadi VJ, A Al-Kahtani A. Exploring luminescent carbon dots derived from syrup bottle waste and curcumin for potential antimicrobial and bioimaging applications. Chemosphere 2024; 354:141592. [PMID: 38467196 DOI: 10.1016/j.chemosphere.2024.141592] [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: 09/19/2023] [Revised: 02/03/2024] [Accepted: 02/29/2024] [Indexed: 03/13/2024]
Abstract
In this study, we utilized a navel hybrid material, prepared by fusing fluorescent Carbon Dots SyCDs, derived from syrup bottles, with curcumin. This innovative approach not only offers significant advancements in antimicrobial activity and bioimaging but also represents a stride in sustainable and eco-friendly nanotechnology. The core of our study is the development of an efficient, cost-effective, and environmentally conscious method for synthesizing SyCDs. This is achieved by repurposing waste syrup bottles, thus addressing the pressing issue of plastic waste. The incorporation of curcumin, renowned for its biological properties, enhances the luminescent characteristics of SyCDs and augments their functionality. This combination overcomes the inherent limitations of curcumin when used in isolation. The hybrid material exhibits enhanced antimicrobial properties and proves to be a potent alternative to conventional fluorescent dyes for bioimaging, marking a substantial leap in the field of sustainable nanomaterials. Our work not only demonstrates the versatile applications of luminescent SyCDs in health and environmental science but also underscores the potential of sustainable approaches in addressing global environmental challenges. This study, represents a significant contribution to the domain of sustainable nanotechnology, highlighting the transformative power of integrating waste management with advanced material science.
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Affiliation(s)
- Natesan Thirumalaivasan
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Tamil Nadu, Chennai, 600077, India
| | - Kuppusamy Kanagaraj
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai, 200444, China
| | - Kamaraj Logesh
- Department of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Sridhar Chandrasekaran
- School of Electronics Engineering, Vellore Institute of Technology, Chennai, Tamil Nadu, India
| | - Sandeep Kumar
- Centre for Research Impact and Outcomes, Chitkara University, Rajpura, Punjab, India
| | - Raghunandhakumar Subramanian
- Cancer and Stem Cell Research Lab, Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 600077, Tamil Nadu, India
| | - Nangan Senthilkumar
- Department of Chemistry, Graphic Era (Deemed to be University), Bell Road, Clement Town, Dehradun, Uttarakhand, India.
| | - Ashok Kumar
- Chitkara Centre for Research and Development, Chitkara University, Himachal Pradesh,174103, India
| | | | - Abdullah A Al-Kahtani
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia.
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Kobayashi K, Hata A, Imoto W, Kakuno S, Shibata W, Yamada K, Kawaguchi H, Sakurai N, Ito T, Uenoyama K, Takahashi T, Ueda S, Katayama T, Onoue M, Kakeya H. Evaluation of predictors of third-generation cephalosporin non-susceptibility and factors affecting recurrence or death in bacteremia caused by Citrobacter freundii complex , Enterobacter cloacae complex, and Klebsiella aerogenes. J Chemother 2024:1-11. [PMID: 38451087 DOI: 10.1080/1120009x.2024.2323326] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 02/20/2024] [Indexed: 03/08/2024]
Abstract
Factors involved in the susceptibility of third-generation cephalosporins (3GCs) to bacteremia caused by Citrobacter freundii complex, Enterobacter cloacae complex, and Klebsiella aerogenes were investigated based on a case-case-control design. Antimicrobial therapy administered 30 days prior to bacteremia and hospitalization within 90 days were common risk factors for the 3GC susceptible and 3GC non-susceptible groups, while hospitalization from an institution or another hospital was a specific risk factor for the 3GC non-susceptible group. We also attempted to examine the factors affecting the clinical outcome of bacteremia. Hospitalization more than 14 days before the onset of bacteremia was an independent factor indicating poor clinical outcome. In contrast, the implementation of source control was an independent predictor of successful treatment. Although a longer hospital stay before the onset of bacteremia was associated with worse clinical outcomes, implementation of source control may have contributed to improved treatment outcomes for bacteremia.
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Affiliation(s)
- Kazuhiro Kobayashi
- Department of Pharmacy, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Department of Infection Diseases, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Atsuko Hata
- Department of Infection Diseases, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Waki Imoto
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Shigeki Kakuno
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Wataru Shibata
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Koichi Yamada
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hiroshi Kawaguchi
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Norihiro Sakurai
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Toshikazu Ito
- Department of Pharmacy, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Kazuya Uenoyama
- Department of Pharmacy, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Tamotsu Takahashi
- Department of Pharmacy, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
- Department of Infection Diseases, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Satoru Ueda
- Department of Pharmacy, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
- Department of Infection Diseases, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Toshiro Katayama
- Department of Medical Engineering, Faculty of Health Sciences, Morinomiya University of Medical Sciences, Osaka, Japan
| | - Masahide Onoue
- Department of Pharmacy, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - Hiroshi Kakeya
- Department of Infection Control Science, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Research Centre for Infectious Disease Sciences, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
- Osaka International Research Centre for Infectious Disease, Osaka Metropolitan University, Osaka, Japan
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35
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Orlando BJ. Perception and protection: The role of Bce-modules in antimicrobial peptide resistance. Biochim Biophys Acta Biomembr 2024; 1866:184309. [PMID: 38460782 DOI: 10.1016/j.bbamem.2024.184309] [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: 12/29/2023] [Revised: 02/18/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Continual synthesis and remodeling of the peptidoglycan layer surrounding Gram-positive cells is essential for their survival. Diverse antimicrobial peptides target the lipid intermediates involved in this process. To sense and counteract assault from antimicrobial peptides, low G + C content gram-positive bacteria (Firmicutes) have evolved membrane protein complexes known as Bce-modules. These complexes consist minimally of an ABC transporter and a two-component system that work in tandem to perceive and confer resistance against antimicrobial peptides. In this mini-review I highlight recent breakthroughs in comprehending the structure and function of these unusual membrane protein complexes, with a particular focus on the BceAB-RS system present in Bacillus subtilis.
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Affiliation(s)
- Benjamin J Orlando
- Dept. of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA.
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36
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Labaran AN, Zango ZU, Tailor G, Alsadig A, Usman F, Mukhtar MT, Garba AM, Alhathlool R, Ibnaouf KH, Aldaghri OA. Biosynthesis of copper nanoparticles using Alstonia scholaris leaves and its antimicrobial studies. Sci Rep 2024; 14:5589. [PMID: 38453990 PMCID: PMC10920664 DOI: 10.1038/s41598-024-56052-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/01/2024] [Indexed: 03/09/2024] Open
Abstract
The utilization of plants for the production of metallic nanoparticles is gaining significant attention in research. In this study, we conducted phytochemical screening of Alstonia scholaris (A. scholaris) leaves extracts using various solvents, including chloroform, ethyl acetate, n-hexane, methanol, and water. Our findings revealed higher proportions of flavonoids and alkaloids in both solvents compared to other phytochemical species. In the methanol, extract proteins, anthraquinone and reducing sugar were not detected. On the other hand, the aqueous extract demonstrated the presence of amino acids, reducing sugar, phenolic compounds, anthraquinone, and saponins. Notably, ethyl acetate and chloroform extracts displayed the highest levels of bioactive compounds among all solvents. Intrigued by these results, we proceeded to investigate the antibacterial properties of the leaf extracts against two major bacterial strains, Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). All extracts exhibited significant zones of inhibition against both bacterial isolates, with S. aureus showing higher susceptibility compared to E. coli. Notably, the methanol extract displayed the most potent I hibitory effect against all organisms. Inspired by the bioactivity of the methanol extract, we employed it as a plant-based material for the green synthesis of copper nanoparticles (Cu-NPs). The synthesized Cu-NPs were characterized using Fourier infrared spectroscopy (FT-IR), UV-visible spectroscopic analysis, and scanning electron microscopy (SEM). The observed color changes confirmed the successful formation of Cu-NPs, while the FTIR analysis matched previously reported peaks, further verifying the synthesis. The SEM micrographs indicated the irregular shapes of the surface particles. From the result obtained by energy dispersive X-ray spectroscopic analysis, Cu has the highest relative abundance of 67.41 wt%. Confirming the purity of the Cu-NPs colloid. These findings contribute to the growing field of eco-friendly nanotechnology and emphasize the significance of plant-mediated approaches in nanomaterial synthesis and biomedical applications.
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Affiliation(s)
- Ahmad Nasir Labaran
- Department of Chemistry, Faculty of Science and Technology, Mewar University, Gangrar, Chittorgarh, Rajasthan, 312901, India
| | - Zakariyya Uba Zango
- Department of Chemistry, College of Natural and Applied Science, Al-Qalam University, Katsina, Nigeria.
| | - Giriraj Tailor
- Department of Chemistry, Faculty of Science and Technology, Mewar University, Gangrar, Chittorgarh, Rajasthan, 312901, India
| | - Ahmed Alsadig
- CNR NANOTEC Institute of Nanotechnology, Via Monteroni, 73100, Lecce, Italy
| | - Fahad Usman
- Engineering Unit, Department of Mathematics, Connecticut State Community College Norwalk, Connecticut State Colleges and Universities (CSCU), Hartford, USA
| | - Muhammad Tukur Mukhtar
- Department of Chemistry, Faculty of Science and Technology, Mewar University, Gangrar, Chittorgarh, Rajasthan, 312901, India
| | - Alhassan Muhammad Garba
- Department of Chemistry, Faculty of Science and Technology, Mewar University, Gangrar, Chittorgarh, Rajasthan, 312901, India
| | - Raed Alhathlool
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 13318, Riyadh, Saudi Arabia.
| | - Khalid Hassan Ibnaouf
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 13318, Riyadh, Saudi Arabia
| | - Osamah A Aldaghri
- Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 13318, Riyadh, Saudi Arabia
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Abdel Azim S, Whiting C, Friedman AJ. Applications of nitric oxide-releasing nanomaterials in dermatology: Skin infections and wound healing. Nitric Oxide 2024; 146:10-18. [PMID: 38458595 DOI: 10.1016/j.niox.2024.03.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/19/2024] [Accepted: 03/05/2024] [Indexed: 03/10/2024]
Abstract
Nitric oxide (NO) is produced in most cells in the skin and is an important regulator of essential cutaneous functions, including responses to UV irradiation, microbial defense, wound healing, melanogenesis and epidermal permeability barrier homeostasis. Harnessing the physiological activities of NO for therapeutic use is difficult because the molecule is highly reactive and unstable. A variety of exogenous NO delivery platforms have been developed and evaluated; however, they have limited clinical applications in dermatology due to instability and poor cutaneous penetration. NO-releasing nanomaterials overcome these limitations, providing targeted tissue delivery, and sustained and controlled NO release. This review provides a comprehensive and up-to-date evaluation of the use of NO-releasing nanomaterials in dermatology for the treatment of skin and soft tissue infections and wound healing.
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Affiliation(s)
- Sara Abdel Azim
- Georgetown University School of Medicine, Washington, DC, USA
| | - Cleo Whiting
- Department of Dermatology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Adam J Friedman
- Department of Dermatology, George Washington University School of Medicine and Health Sciences, Washington, DC, USA.
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38
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Diken-Gür S. Investigation of anti-adherence and antimicrobial properties of prodigiosin-functionalized bacterial cellulose membrane for biomedical applications. J Biotechnol 2024; 385:58-64. [PMID: 38458539 DOI: 10.1016/j.jbiotec.2024.03.002] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
In this study, novel biomaterial that consisted entirely of bacterial products was developed with the approach of designing cost effective material for biomedical applications. With this aim, bacterial cellulose membranes (BCMs) which synthesized by Komagataeibacter intermedius were produced. Moreover, to impart antimicrobial properties to enhance the capacity of BCMs for biomedical usage, prodigiosin (PG) pigment of Serratia marcescens which presents wide range of antimicrobial activities was loaded to BCMs. Firstly, high yield of PG production was achieved, and then crude pigment was purified with silica gel column. The purified PG was characterized with thin layer chromatography and UV-visible spectrometry. The antimicrobial effect of the produced pigment on Gram-positive and negative bacteria and a yeast was investigated. The success of modification in PG-modified BCMs has been demonstrated by FTIR and SEM. Moreover, antimicrobial and antiadhesive ability of novel PG-BCMs were examined with disc diffusion and plate counting methods. As a result, it was established that PG-BCMs were able to inhibit the growth of all tested microorganisms. Furthermore, excellent antiadhesive effect was observed for the tested microorganisms with the inhibition rates of 82.05-96.25 %. Finally, cytotoxicity test with L929 cell line demonstrated that PG-BCM is biocompatible at a level that can be applied in in vivo studies.
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Affiliation(s)
- Sinem Diken-Gür
- Hacettepe University, Faculty of Science, Department of Biology, Ankara, Turkey.
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39
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Mahmoudjanlou H, Saberpour M, Bakhshi B. Antimicrobial, anti-adhesive, and anti-invasive effects of condition media derived from adipose mesenchymal stem cells against Shigella flexneri. Arch Microbiol 2024; 206:142. [PMID: 38441673 DOI: 10.1007/s00203-024-03860-5] [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: 11/10/2023] [Revised: 01/20/2024] [Accepted: 01/22/2024] [Indexed: 03/07/2024]
Abstract
The objective of the current study was to examine the antimicrobial, anti-adhesion, and anti-invasion properties of various concentrations of condition media obtained from adipose mesenchymal stem cells (AD-MSCs CM) against Shigella flexneri (S. flexneri). AD-MSCs characterization and antimicrobial assay were performed using flow cytometry and microdilution by colony counting, respectively. For evaluating adhesion and invasion, Caco-2 cells were infected by S. flexneri at three different multiplicities of infection (MOIs of 1, 10, and 50) and then treated with DMEM medium and AD-MSCs CM. The inhibitory effect of AD-MSCs CM was assessed after 24 and 48 h of treatment by CFU (colony-forming unit) counting. A total of 84, 65, and 56% reduction in the adhesion rate of S. flexneri to Caco-2 cells treated with AD-MSCs CM were observed at MOIs of 1, 10, and 50, respectively. While S. flexneri at MOI:1 had no invasive effect on Caco-2 cells, convincing invasion was detected at MOIs of 10 and 50, showing a significant decrease following treatment with AD-MSCs CM. The current study results open new insights into AD-MSCs CM as a new non-antibiotic therapeutic candidate for S. flexneri infections.
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Affiliation(s)
- Hodiseh Mahmoudjanlou
- Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Jalal-Ale-Ahmad Ave, Tehran, 14117-13116, Iran
| | - Masoumeh Saberpour
- Department of Influenza and Other Respiratory Viruses, Pasteur Institute of Iran, Tehran, Iran
| | - Bita Bakhshi
- Department of Bacteriology, Faculty of Medical Sciences, Tarbiat Modares University, Jalal-Ale-Ahmad Ave, Tehran, 14117-13116, Iran.
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40
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da Costa FKC, Carciofi BAM, de Aragão GMF, Ienczak JL. Modeling the influence of propionic acid concentration and pH on the kinetics of Salmonella Typhimurium. Int J Food Microbiol 2024; 416:110662. [PMID: 38461734 DOI: 10.1016/j.ijfoodmicro.2024.110662] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Revised: 02/08/2024] [Accepted: 03/03/2024] [Indexed: 03/12/2024]
Abstract
Salmonella Typhimurium is a foodborne pathogen often found in the poultry production chain. Antibiotics have been used to reduce S. Typhimurium contamination in poultry aviaries and improve chicken growth. However, antibiotics were banned in several countries. Alternatively, organic acids, such as propionic acid (PA), can control pathogens. This study determined the PA minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), and mathematically modeled S. Typhimurium growth/inactivation kinetics under the influence of PA at different pH values (4.5, 5.5, and 6.5) which are within the pH range of the chicken gastrointestinal tract. The PA MIC against S. Typhimurium was pH-dependent, resulting in 5.0, 3.5 and 9.0 mM undissociated PA at pH 4.5, 5.5, and 6.5, respectively. The Baranyi and Roberts and the Weibull model fit growth and inactivation data well, respectively. Secondary models were proposed. The validated model predicted 3-log reduction of S. Typhimurium in 3 h at 68.2 mM of undissociated PA and pH 4.5. The models presented a good capacity to describe the kinetics of S. Typhimurium subjected to PA, representing a useful tool to predict PA antibacterial action depending on the pH.
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Affiliation(s)
- Fernando K C da Costa
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-901, Brazil
| | - Bruno A M Carciofi
- Departament of Biological and Agricultural Engineering, University of California Davis, Davis, CA 95616, USA
| | - Gláucia M F de Aragão
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-901, Brazil
| | - Jaciane L Ienczak
- Department of Chemical and Food Engineering, Federal University of Santa Catarina, Florianópolis, SC 88040-901, Brazil.
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41
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Deol PK, Kaur IP, Dhiman R, Kaur H, Sharma G, Rishi P, Ghosh D. Investigating wound healing potential of sesamol loaded solid lipid nanoparticles: Ex-vivo, in vitro and in-vivo proof of concept. Int J Pharm 2024; 654:123974. [PMID: 38447777 DOI: 10.1016/j.ijpharm.2024.123974] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 02/07/2024] [Accepted: 03/03/2024] [Indexed: 03/08/2024]
Abstract
Sesamol, a lignan, obtained from sesame seeds (Sesamum indicum Linn., Pedaliaciae) has a promising antioxidant, and anti-inflammatory profile. When applied topically, free sesamol rapidly crosses skin layers and gets absorbed in systemic circulation. Its encapsulation into solid lipid nanoparticles not only improved its localised delivery to skin but also resulted in better skin retention, as found in ex-vivo skin retention studies. Free and encapsulated sesamol was compared for antimicrobial and antibiofilm activity against some common skin pathogens and it was found that encapsulation improved the antimicrobial profile by 200%. In vivo evaluation in diabetic open excision wound model suggested that encapsulation of sesamol in SLNs substantially enhanced its wound healing potential when investigated for biophysical, biochemical and histological parameters. It was envisaged that this was achieved via inhibiting bacterial growth and clearing the bacterial biofilm at the wound site, and by regulating oxidative stress in skin tissue.
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Affiliation(s)
- Parneet Kaur Deol
- G.H.G. Khalsa College of Pharmacy Gurusar Sadhar, Ludhiana, Punjab, India.
| | - Indu Pal Kaur
- University Institute of Pharmaceutical Sciences, Punjab University Chandigarh, India
| | - Ravi Dhiman
- G.H.G. Khalsa College of Pharmacy Gurusar Sadhar, Ludhiana, Punjab, India
| | - Harmanjot Kaur
- G.H.G. Khalsa College of Pharmacy Gurusar Sadhar, Ludhiana, Punjab, India
| | - Garima Sharma
- University Institute of Pharmaceutical Sciences, Punjab University Chandigarh, India
| | - Parveen Rishi
- Department of Microbiology, Punjab University Chandigarh, India
| | - Deepa Ghosh
- Institute of Nano Science and Technology, Mohali, Punjab, India
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42
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McQuerry M, Dodson A. An antimicrobial zinc ion fiber for COVID-19 prevention in nonwoven face coverings for healthcare settings. J Occup Environ Hyg 2024:1-8. [PMID: 38437682 DOI: 10.1080/15459624.2024.2310675] [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] [Indexed: 03/06/2024]
Abstract
The COVID-19 pandemic created an unprecedented increase in the usage of personal protective equipment (PPE) in the healthcare industry, especially in the form of face coverings. Subsequently, guidelines related to breathability and wear comfort were published by the Centers for Disease Control (CDC) as an influx of various new materials entered the PPE market. This study evaluated a proprietary, novel, zinc-ion embedded fiber with the ability to deactivate bacteria and viruses, including SARS-COV-2, for its wear comfort in a nonwoven disposable mask in comparison to a commercially available surgical face mask which served as the control. Ten healthy, full-time, career, firefighters participated in this study wearing both masks in a randomized fashion. A medical task simulation (MTS) protocol was developed to replicate nursing task metabolic rates, per the compendium of physical activities, via a graded treadmill walking exercise. Participant ratings including ease of mask fit, overall mask comfort, facial comfort, breathability, and facial temperature sensation were recorded before, during, and after the 50-minute protocol in a controlled environmental chamber. The 100% nylon, zinc ion mask was rated as slightly cooler at the beginning of the trial (at 0.8 vs. 1.3), than the commercially available polypropylene mask. The polypropylene mask also reached a perceived mask facial comfort (MFC) rating of 1.6 just 35 min into the protocol whereas the zinc ion mask did not reach a rating of slight discomfort until the end of the exercise. Findings indicate the novel zinc-ion embedded mask was as comfortable, if not more so, than the commercially available nonwoven mask with more favorable ratings for longer durations. Not only do the zinc properties provide enhanced protection, but they maintain, if not improve, wearer comfort.
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Affiliation(s)
- Meredith McQuerry
- ThermaNOLE Comfort Lab, Florida State University, Tallahassee, Florida
| | - Annie Dodson
- Ascend Performance Materials, Pensacola, Florida
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43
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Hou W, Xu XL, Huang LJ, Zhang ZY, Zhou ZN, Wang JY, Ouyang X, Xin SY, Zhang ZY, Xiong Y, Huang H, Lan JX. Bioactivities and action mechanisms of ellipticine derivatives reported prior to 2023. Chem Biodivers 2024:e202400210. [PMID: 38433548 DOI: 10.1002/cbdv.202400210] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 03/03/2024] [Accepted: 03/03/2024] [Indexed: 03/05/2024]
Abstract
Currently, natural products are one of the priceless options for finding novel chemical pharmaceutical entities. Ellipticine is a naturally occurring alkaloid isolated from the leaves of Ochrosia elliptica Labill. Ellipticine and its derivatives are characterized by multiple biological activities. The purpose of this review was to provide a critical and systematic assessment of ellipticine and its derivatives as bioactive molecules over the last 60 years. Publications focused mainly on the total synthesis of alkaloids of this type without any evaluation of bioactivityhave been excluded. We have reviewed papers dealing with the synthesis, bioactivity evaluation and mechanism of action of ellipticine and its derivatives. It was found that ellipticine and its derivatives showed cytotoxicity, antimicrobial ability, and anti-inflammatory activity, among which cytotoxicity toward cancer cell lines was the most investigated aspect. The inhibition of DNA topoisomerase II was the most relevant mechanism for cytotoxicity. The PI3K/AKT pathway, p53 pathway, and MAPK pathway were also closely related to the antiproliferative ability of these compounds. In addition, the structure-activity relationship was deduced, and future prospects were outlined. We are confident that these findings will lay a scientific foundation for ellipticine-based drug development, especially for anticancer agents.
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Affiliation(s)
- Wen Hou
- Gannan Medical University, Depatment of Medicinal Chemistry, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Xin-Liang Xu
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Le-Jun Huang
- Gannan Medical University, , Gannan Medical University, 341000, Ganzhou, CHINA
| | - Zhen Yu Zhang
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Zhi-Nuo Zhou
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Jin-Yang Wang
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Xi Ouyang
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Su-Ya Xin
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Zi-Yun Zhang
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Yi Xiong
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Hao Huang
- Gannan Medical University, Department of Pharmacy, Gannan Medical University, 341000, Ganzhou, CHINA
| | - Jin-Xia Lan
- Gannan Medical University, Gannan Medical University, 341000, Ganzhou, CHINA
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Shakeri A, Mirahmadi MR, Kunert O, Tsai YC, Barta A, Hohmann J, Asili J. Diverse diterpenoids and a triterpenoid from Euphorbia spinidens Bornm. ex Prokh. Fitoterapia 2024; 173:105838. [PMID: 38296165 DOI: 10.1016/j.fitote.2024.105838] [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: 08/03/2023] [Revised: 01/26/2024] [Accepted: 01/27/2024] [Indexed: 02/03/2024]
Abstract
Four previously unreported diterpenoids including three ent-atisanes (1-3) and one ent-abietane (4), along with one known linear triterpenoid (5) and five known diterpenoids including four myrsinanes (6-9), and one abietane (10) have been isolated from the roots of Euphorbia spinidens Bornm. ex Prokh. The structures were determined on the basis of extensive spectroscopic analyses including HR-ESI-MS, 1D and 2D NMR and comparison of the data with those reported in the literature. Antimicrobial potential of isolated compounds were also evaluated. Guionianol B (10) showed good antibacterial activity against Staphylococcus aureus and Bacillus subtilis with MIC value of 6.25 μg/mL.
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Affiliation(s)
- Abolfazl Shakeri
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Mirahmadi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Olaf Kunert
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Chemistry, University of Graz, Universitätsplatz 1, Graz, Austria
| | - Yu-Chi Tsai
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Anita Barta
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary
| | - Judit Hohmann
- Department of Pharmacognosy, University of Szeged, Szeged, Hungary; ELKH-USZ Biologically Active Natural Products Research Group, University of Szeged, H-6720 Szeged, Hungary.
| | - Javad Asili
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
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Abdullah R, Younas Q, Kaleem A, Iqtedar M, Aftab M, Saleem F. Phytochemical and antimicrobial properties of different plants and in silico investigation of their bioactive compounds in wound healing and rheumatism. Saudi J Biol Sci 2024; 31:103942. [PMID: 38327660 PMCID: PMC10847370 DOI: 10.1016/j.sjbs.2024.103942] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/14/2024] [Accepted: 01/26/2024] [Indexed: 02/09/2024] Open
Abstract
In the current study the assessment of the antimicrobial and phytochemical properties of Cassia fistula, Musa paradisiaca, Ficus religiosa and Murraya koenigii plants extracts was carried out. The antibacterial potential of these plants extracts was tested against S. aureus and E. coli. The Cassia fistula and Ficus religiosa leaves showed the larger zone of inhibition in aqueous and butanolic extract respectively against Escherichia coli. Musa paradisiaca and Murraya koenigii leaves showed larger zone of inhibition in ethanolic extract against S. aureus. Qualitative phytochemical analysis showed the presence of alkaloids, flavonoids, phenols, terpenoids, steroids, glycosides, saponins, carbohydrates, proteins and tannins in all extracts while phylobatannins, emodins, anthocyanins and leucoanthocyanins were not present in these extracts. Quantitative phytochemical analysis showed the highest alkaloid content in the Murraya koenigii leaves. Highest tannin content and flavonoid content was found in Ficus religiosa leaves, while highest phenolic content was found in case of Cassia fistula. In addition to this antioxidant potential of all the extracts was determined. Musa paradisiaca leaves showed highest antioxidant potential as compared to other plant extracts. In silico analysis of bioactive components present in plant extracts was performed by molecular docking. The rutin and Glu from Musa paradisiaca and Murraya koenigii respectively, were docked with Glycogen Synthase Kinase 3 beta (1GSK-3beta) protein. Quercetin and rutin from Cassia fistula and Ficus religiosa respectively, were docked with C- reactive protein (CRP). The tested bioactive compounds showed good binding affinity with significant number of hydrogen bonds and can be used as a good alternative of synthetic drugs to treat rheumatism and wounds.
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Affiliation(s)
- Roheena Abdullah
- Department of Biotechnology Lahore College for Women University, Lahore, Pakistan
| | - Qamar Younas
- Department of Biotechnology Lahore College for Women University, Lahore, Pakistan
| | - Afshan Kaleem
- Department of Biotechnology Lahore College for Women University, Lahore, Pakistan
| | - Mehwish Iqtedar
- Department of Biotechnology Lahore College for Women University, Lahore, Pakistan
| | - Mahwish Aftab
- Department of Biotechnology Lahore College for Women University, Lahore, Pakistan
| | - Faiza Saleem
- Department of Biotechnology Lahore College for Women University, Lahore, Pakistan
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Chen HW, Wu XY, Zhao ZY, Huang ZQ, Lei XS, Yang GX, Li J, Xiong J, Hu JF. Terricoxanthones A-E, unprecedented dihydropyran-containing dimeric xanthones from the endophytic fungus Neurospora terricola HDF-Br-2 associated with the vulnerable conifer Pseudotsuga gaussenii. Phytochemistry 2024; 219:113963. [PMID: 38171409 DOI: 10.1016/j.phytochem.2023.113963] [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: 10/15/2023] [Revised: 12/27/2023] [Accepted: 12/30/2023] [Indexed: 01/05/2024]
Abstract
An investigation on the secondary metabolites from a rice culture broth of the endophytic fungus Neurospora terricola HDF-Br-2 derived from the vulnerable conifer Pseudotsuga gaussenii led to the isolation and characterization of 34 structurally diverse polyketides (1-34). Seven of them are previously undescribed, including five unprecedented dihydropyran-containing (terricoxanthones A-E, 1-5, resp.) and one rare tetrahydrofuran-containing (terricoxanthone F, 6) dimeric xanthones. The structures were elucidated by spectroscopic methods and single-crystal X-ray diffraction analyses. Terricoxanthones each were obtained as a racemic mixture. Their plausible biosynthetic relationships were briefly proposed. Compounds 6, aspergillusone A (8), and alatinone (27) displayed considerable inhibition against Candida albicans with MIC values of 8-16 μg/mL. 4-Hydroxyvertixanthone (12) and 27 exhibited significant inhibitory activities against Staphylococcus aureus, with MIC values of 4-8 μg/mL. Furthermore, compounds 8 and 27 could disrupt biofilm of S. aureus and C. albicans at 128 μg/mL. The findings not only extend the skeletons of xanthone dimers and contribute to the diversity of metabolites of endophytes associated with the endangered Chinese conifer P. gaussenii, but could further reveal the important role of protecting plant species diversity in support of chemical diversity and potential sources of new therapeutics.
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Affiliation(s)
- Hao-Wei Chen
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, PR China; Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Xi-Ying Wu
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, PR China; Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Ze-Yu Zhao
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, PR China; Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Zi-Qi Huang
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Xin-Sheng Lei
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Guo-Xun Yang
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Jiyang Li
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China
| | - Juan Xiong
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China.
| | - Jin-Feng Hu
- School of Pharmaceutical Sciences, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou University, Taizhou 318000, PR China; Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai 201203, PR China.
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47
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Thakur RK, Biswas PK, Singh M. Biovalorization of Fruit Wastes for Development of Biodegradable Antimicrobial Chitosan-Based Coatings for Fruits (Tomatoes and Grapes). Appl Biochem Biotechnol 2024; 196:1175-1193. [PMID: 37378721 DOI: 10.1007/s12010-023-04601-y] [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] [Accepted: 06/19/2023] [Indexed: 06/29/2023]
Abstract
Organic wastes are generated from high consumption of fruits. In this paper, fruit residual wastes collected from fruit-juice centres were transformed into fine powder, and thereafter, proximate analysis along with SEM, EDX and XRD was done to get into the surface morphology, minerals and ash content of fine powder. Aqueous extract (AE) prepared from this powder was studied using gas chromatography-mass spectroscopy (GC-MS). The phytochemicals identified are N-hexadecanoic acid; 1,3-dioxane,2,4-dimethyl-, diglycerol, 4-ethyl-2-hydroxycyclopent-2-en-1-one, eicosanoic acid, etc. AE showed high antioxidant and a low MIC value (2 mg/ml) against Pseudomonas aeruginosa MZ269380. AE having acceptance as nontoxic to biological system, formulation of chitosan (2%)-based coating was done with 1% AQ. Surface coatings of tomatoes and grapes showed significant inhibition of microbial growth even after 10 days of storage at ambient temperature (25 ± 2 °C). Colour, texture, firmness and aceptability of coated fruits showed no degradation compared to negative control. Additionally, the extracts showed insignificance haemolysis of goat RBC and damage of Calf Thymus DNA which exhibited its biocompatible nature. Biovalorization of fruit wastes yields useful phytochemicals and can be utilized in various sectors thereby finding a sustainable solution for disposal of fruit wastes.
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Affiliation(s)
- Ranjay Kumar Thakur
- Department of Biotechnology, Haldia Institute of Technology, Haldia, 721657, West Bengal, India
- Department of Food Technology, Haldia Institute of Technology, Haldia, 721657, West Bengal, India
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Prasanta Kumar Biswas
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Mukesh Singh
- Department of Biotechnology, Haldia Institute of Technology, Haldia, 721657, West Bengal, India.
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Krishnappa S, Karthik Y, Pratap GK, Shantaram M, Umarajashekhar A, Soumya J, Bhatt B, Sayed SM, Alhelaify SS, Aharthy OM, Mushtaq M. Exploration of bioactive compounds from Olea dioica in Western Ghats of Karnataka using GC-MS. 3 Biotech 2024; 14:63. [PMID: 38344286 PMCID: PMC10853147 DOI: 10.1007/s13205-023-03888-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 12/06/2023] [Indexed: 03/10/2024] Open
Abstract
Bioactive compounds in plants are essential for the formation of novel chemotherapeutic drugs, which have been used in Ayurveda to treat a variety of illnesses. Indian medicinal herbs have been used for thousands of years to treat a variety of illnesses, such as fever, cancer, snake bites, rheumatism, skin problems, and neurodegenerative diseases. GC-MS was used to locate and categorize bioactive components in Olea dioica leaves. The results showed that presence of octanoic acid, methyl ester, decanoic acid, methyl ester, desulphosinigrin, l-gala-l-ido-octose, methyl tetradecanoate, Tetradecanoic acid, 6-benzoxazolesulfonamide, N-(2-hydroxyethyl)-2-methyl-, 10-chloro-5-methoxy-5H-dibenzo[a,d][7]annulene, pentadecanoic acid, oleic acid, n-hexadecanoic acid, hexanedioic acid, dioctyl ester, and squalene. The methanol extract of Olea dioica was effective against a wide spectrum of pathogenic bacteria at four different concentrations, with the highest activity against Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, Xanthomonas campestris, and Salmonella typhimurium. It also showed moderate activity against Agrobacterium tumefaciens, Pseudomonas aeruginosa, Streptomyces pneumonia, and Pseudomonas syringae. The pharmacological properties of O. dioica, as well as their variety and comprehensive phytochemistry, could be exploited as a potent antimicrobial agent for future therapeutics.
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Affiliation(s)
- Srinivasa Krishnappa
- Department of Studies and Research in Biochemistry, Mangalore University, Jnana Kaveri, Chikka Aluvara, Kodagu, Karnataka India
| | - Yalpi Karthik
- Department of Studies and Research in Microbiology, Mangalore University, Jnana Kaveri, Chikka Aluvara, Kodagu, Karnataka India
| | - G. K. Pratap
- Department of Studies and Research in Biochemistry, Mangalore University, Jnana Kaveri, Chikka Aluvara, Kodagu, Karnataka India
| | - Manjula Shantaram
- Department of Studies and Research in Biochemistry, Mangalore University, Jnana Kaveri, Chikka Aluvara, Kodagu, Karnataka India
| | - Alavala Umarajashekhar
- Department of Agricultural Microbiology and Bio-Energy Agricultural College JilleleSircilla, Professor Jayashankar Telangana State Agriculture University, Rajendranagar, Hyderabad, India
| | - J. Soumya
- Department of Microbiology, Government Degree College, Bodhan, Kakatiya University, Warangal, India
| | - Bhagyashree Bhatt
- MS Swaminathan School of Agriculture, Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan, Himachal Pradesh 173229 India
| | - Samy M. Sayed
- Department of Science and Technology, University College-Ranyah, Taif University, B.O. Box 11099, 21944 Taif, Saudi Arabia
| | - Seham Sater Alhelaify
- Department of Biotechnology, Faculty of Science, Taif University, P.O. Box 11099, 21944 Taif, Saudi Arabia
| | - Ohud Muslat Aharthy
- Department of Biotechnology, Faculty of Science, Taif University, P.O. Box 11099, 21944 Taif, Saudi Arabia
| | - Muntazir Mushtaq
- MS Swaminathan School of Agriculture, Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan, Himachal Pradesh 173229 India
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Hoch CC, Shoykhet M, Weiser T, Griesbaum L, Petry J, Hachani K, Multhoff G, Bashiri Dezfouli A, Wollenberg B. Isothiocyanates in medicine: A comprehensive review on phenylethyl-, allyl-, and benzyl-isothiocyanates. Pharmacol Res 2024; 201:107107. [PMID: 38354869 DOI: 10.1016/j.phrs.2024.107107] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/05/2024] [Accepted: 02/10/2024] [Indexed: 02/16/2024]
Abstract
In recent years, isothiocyanates (ITCs), bioactive compounds primarily derived from Brassicaceae vegetables and herbs, have gained significant attention within the biomedical field due to their versatile biological effects. This comprehensive review provides an in-depth exploration of the therapeutic potential and individual biological mechanisms of the three specific ITCs phenylethyl isothiocyanate (PEITC), allyl isothiocyanate (AITC), and benzyl isothiocyanate (BITC), as well as their collective impact within the formulation of ANGOCIN® Anti-Infekt N (Angocin). Angocin comprises horseradish root (Armoracia rusticanae radix, 80 mg) and nasturtium (Tropaeoli majoris herba, 200 mg) and is authorized for treating inflammatory diseases affecting the respiratory and urinary tract. The antimicrobial efficacy of this substance has been confirmed both in vitro and in various clinical trials, with its primary effectiveness attributed to ITCs. PEITC, AITC, and BITC exhibit a wide array of health benefits, including potent anti-inflammatory, antioxidant, and antimicrobial properties, along with noteworthy anticancer potentials. Moreover, we highlight their ability to modulate critical biochemical pathways, such as the nuclear factor erythroid 2-related factor 2 (Nrf2)/Kelch-like ECH-associated protein 1 (Keap1), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), and signal transducer and activator of transcription (STAT) pathways, shedding light on their involvement in cellular apoptosis and their intricate role to guide immune responses.
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Affiliation(s)
- Cosima C Hoch
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Maria Shoykhet
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Tobias Weiser
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Lena Griesbaum
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Julie Petry
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany
| | - Khouloud Hachani
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany; Central Institute for Translational Cancer Research, Technical University of Munich (TranslaTUM), Department of Radiation Oncology, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Gabriele Multhoff
- Central Institute for Translational Cancer Research, Technical University of Munich (TranslaTUM), Department of Radiation Oncology, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Ali Bashiri Dezfouli
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany; Central Institute for Translational Cancer Research, Technical University of Munich (TranslaTUM), Department of Radiation Oncology, Klinikum rechts der Isar, 81675 Munich, Germany
| | - Barbara Wollenberg
- Department of Otolaryngology, Head and Neck Surgery, School of Medicine and Health, Technical University of Munich (TUM), 81675 Munich, Germany.
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50
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Chidike Ezeorba TP, Ezugwu AL, Chukwuma IF, Anaduaka EG, Udenigwe CC. Health-promoting properties of bioactive proteins and peptides of garlic (Allium sativum). Food Chem 2024; 435:137632. [PMID: 37801762 DOI: 10.1016/j.foodchem.2023.137632] [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: 06/29/2023] [Revised: 09/18/2023] [Accepted: 09/28/2023] [Indexed: 10/08/2023]
Abstract
Garlic is a popular food spice with diverse and well-established medicinal properties. Many research interests have been directed toward the biological activities of the phytochemical constituents of garlic. However, prospects of its bioactive proteins and peptides have been understudied to date. With the advances in food proteomics/peptide research, a review of studies on garlic bioactive proteins and peptides, especially on their nature, extraction, and biological activities, is timely. Garlic has been reported to express several proteins, endogenous and protein-derived peptides with interesting bioactivities, including antioxidant, anti-inflammatory, antibacterial, antifungal, anti-proliferative, antiviral, anti-hypertensive and immunomodulatory activities, suggesting their therapeutic and pharmacological potentials. Compared to legumes, the low protein contents of garlic bulbs and their low stability are possible limitations that would hinder future applications. We suggest adopting heterologous expression systems for peptide overproduction and stability enhancement. Therefore, we recommend increased scientific interest in the bioactive peptides of garlic and other spice plants.
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Affiliation(s)
- Timothy Prince Chidike Ezeorba
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria; Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria; Department of Molecular Biotechnology, School of Biosciences, University of Birmingham Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Arinze Linus Ezugwu
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria; Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria
| | - Ifeoma Felicia Chukwuma
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria; Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria
| | - Emeka Godwin Anaduaka
- Department of Biochemistry, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria; Department of Genetics and Biotechnology, Faculty of Biological Sciences, University of Nigeria, Enugu State 410001, Nigeria
| | - Chibuike C Udenigwe
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa K1H 8M5, Canada.
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