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Jin C, Jia C, Hu W, Xu H, Shen Y, Yue M. Predicting antimicrobial resistance in E. coli with discriminative position fused deep learning classifier. Comput Struct Biotechnol J 2024; 23:559-565. [PMID: 38274998 PMCID: PMC10809114 DOI: 10.1016/j.csbj.2023.12.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 01/27/2024] Open
Abstract
Escherichia coli (E. coli) has become a particular concern due to the increasing incidence of antimicrobial resistance (AMR) observed worldwide. Using machine learning (ML) to predict E. coli AMR is a more efficient method than traditional laboratory testing. However, further improvement in the predictive performance of existing models remains challenging. In this study, we collected 1937 high-quality whole genome sequencing (WGS) data from public databases with an antimicrobial resistance phenotype and modified the existing workflow by adding an attention mechanism to enable the modified workflow to focus more on core single nucleotide polymorphisms (SNPs) that may significantly lead to the development of AMR in E. coli. While comparing the model performance before and after adding the attention mechanism, we also performed a cross-comparison among the published models using random forest (RF), support vector machine (SVM), logistic regression (LR), and convolutional neural network (CNN). Our study demonstrates that the discriminative positional colors of Chaos Game Representation (CGR) images can selectively influence and highlight genome regions without prior knowledge, enhancing prediction accuracy. Furthermore, we developed an online tool (https://github.com/tjiaa/E.coli-ML/tree/main) for assisting clinicians in the rapid prediction of the AMR phenotype of E. coli and accelerating clinical decision-making.
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Affiliation(s)
- Canghong Jin
- School of Computer and Computing Science, Hangzhou City University, Hangzhou 310015, China
| | - Chenghao Jia
- Institute of Preventive Veterinary Sciences and Department of Veterinary Medicine, Zhejiang University College of Animal Sciences, Hangzhou 310058, China
| | - Wenkang Hu
- School of Computer and Computing Science, Hangzhou City University, Hangzhou 310015, China
- College of Computer Science and Technology, Zhejiang University, Hangzhou 310027, China
| | - Haidong Xu
- School of Computer and Computing Science, Hangzhou City University, Hangzhou 310015, China
| | - Yanyi Shen
- School of Computer and Computing Science, Hangzhou City University, Hangzhou 310015, China
| | - Min Yue
- Institute of Preventive Veterinary Sciences and Department of Veterinary Medicine, Zhejiang University College of Animal Sciences, Hangzhou 310058, China
- Hainan Institute of Zhejiang University, Sanya 572000, China
- Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, Hangzhou 310058, China
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, National Medical Center for Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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2
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Akbaba Y, Kacı FN, Arslan ME, Göksü S, Mardinoğlu A, Türkez H. Novel tetrahydronaphthalen-1-yl-phenethyl ureas: synthesis and dual antibacterial-anticancer activities. J Enzyme Inhib Med Chem 2024; 39:2286925. [PMID: 38062550 DOI: 10.1080/14756366.2023.2286925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/19/2023] [Indexed: 12/18/2023] Open
Abstract
Cancer and antibiotic-resistant bacterial infections are significant global health challenges. The resistance developed in cancer treatments intensifies therapeutic difficulties. In addressing these challenges, this study synthesised a series of N,N'-dialkyl urea derivatives containing methoxy substituents on phenethylamines. Using isocyanate for the efficient synthesis yielded target products 14-18 in 73-76% returns. Subsequently, their antibacterial and anticancer potentials were assessed. Cytotoxicity tests on cancer cell lines, bacterial strains, and a healthy fibroblast line revealed promising outcomes. All derivatives demonstrated robust antibacterial activity, with MIC values ranging from 0.97 to 15.82 µM. Notably, compounds 14 and 16 were particularly effective against the HeLa cell line, while compounds 14, 15, and 17 showed significant activity against the SH-SY5Y cell line. Importantly, these compounds had reduced toxicity to healthy fibroblast cells than to cancer cells, suggesting their potential as dual-functioning agents targeting both cancer and bacterial infections.
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Affiliation(s)
- Yusuf Akbaba
- Department of Basic Sciences, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Fatma Necmiye Kacı
- Department of Molecular Biology & Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
- Faculty of Medicine and Health, St. James' University Hospital, University of Leeds, Leeds, UK
| | - Mehmet Enes Arslan
- Department of Molecular Biology and Genetics, Faculty of Science, Erzurum Technical University, Erzurum, Turkey
| | - Süleyman Göksü
- Department of Chemistry, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Adil Mardinoğlu
- Science for Life Laboratory, KTH-Royal Institute of Technology, Stockholm, Sweden
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London, UK
| | - Hasan Türkez
- Department of Medical Biology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
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3
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Sarkar T, Vignesh SR, Sehgal T, Ronima KR, Thummer RP, Satpati P, Chatterjee S. Development of protease resistant and non-cytotoxic Jelleine analogs with enhanced broad spectrum antimicrobial efficacy. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184336. [PMID: 38763273 DOI: 10.1016/j.bbamem.2024.184336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/29/2024] [Accepted: 05/12/2024] [Indexed: 05/21/2024]
Abstract
Short systemic half- life of Antimicrobial Peptides (AMP) is one of the major bottlenecks that limits their successful commercialization as therapeutics. In this work, we have designed analogs of the natural AMP Jelleine, obtained from royal jelly of apis mellifera. Among the designed peptides, J3 and J4 were the most potent with broad spectrum activities against a varied class of ESKAPE pathogens and fungus C. albicans. All the developed peptides were more effective against Gram-negative bacteria in comparison to the Gram-positive pathogens, and were especially effective against P. aeruginosa and C. albicans.J3 and J4 were completely trypsin resistant and serum stable, while retaining the non-cytotoxicity of the parent Jelleine, Jc. The designed peptides were membranolytic in their mode of action. CD and MD simulations in the presence of bilayers, established that J3 and J4 were non-structured even upon membrane binding and suggested that biological properties of the AMPs were innocent of any specific secondary structural requirements. Enhancement of charge to increase the antimicrobial potency, controlling the hydrophobic-hydrophilic balance to maintain non-cytotoxicity and induction of unnatural amino acid residues to impart protease resistance, remains some of the fundamental principles in the design of more effective antimicrobial therapeutics of the future, which may help combat the quickly rising menace of antimicrobial resistance in the microbes.
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Affiliation(s)
- Tanumoy Sarkar
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, India
| | - S R Vignesh
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati, India
| | - Tanya Sehgal
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, India
| | - K R Ronima
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati, India
| | - Rajkumar P Thummer
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati, India
| | - Priyadarshi Satpati
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Guwahati, Guwahati, India.
| | - Sunanda Chatterjee
- Department of Chemistry, Indian Institute of Technology, Guwahati, Guwahati, India.
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4
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Lee AWT, Ng ICF, Wong EYK, Wong ITF, Sze RPP, Chan KY, So TY, Zhang Z, Ka-Yee Fung S, Choi-Ying Wong S, Tam WY, Lao HY, Lee LK, Leung JSL, Chan CTM, Ng TTL, Zhang J, Chow FWN, Leung PHM, Siu GKH. Comprehensive identification of pathogenic microbes and antimicrobial resistance genes in food products using nanopore sequencing-based metagenomics. Food Microbiol 2024; 121:104493. [PMID: 38637066 DOI: 10.1016/j.fm.2024.104493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/09/2024] [Accepted: 02/14/2024] [Indexed: 04/20/2024]
Abstract
Foodborne pathogens, particularly antimicrobial-resistant (AMR) bacteria, remain a significant threat to global health. Given the limitations of conventional culture-based approaches, which are limited in scope and time-consuming, metagenomic sequencing of food products emerges as a promising solution. This method provides a fast and comprehensive way to detect the presence of pathogenic microbes and antimicrobial resistance genes (ARGs). Notably, nanopore long-read sequencing provides more accurate bacterial taxonomic classification in comparison to short-read sequencing. Here, we revealed the impact of food types and attributes (origin, retail place, and food processing methods) on microbial communities and the AMR profile using nanopore metagenomic sequencing. We analyzed a total of 260 food products, including raw meat, sashimi, and ready-to-eat (RTE) vegetables. Clostridium botulinum, Acinetobacter baumannii, and Vibrio parahaemolyticus were identified as the top three foodborne pathogens in raw meat and sashimi. Importantly, even with low pathogen abundance, higher percentages of samples containing carbapenem and cephalosporin resistance genes were identified in chicken and RTE vegetables, respectively. In parallel, our results demonstrated that fresh, peeled, and minced foods exhibited higher levels of pathogenic bacteria. In conclusion, this comprehensive study offers invaluable data that can contribute to food safety assessments and serve as a basis for quality indicators.
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Affiliation(s)
- Annie Wing-Tung Lee
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Iain Chi-Fung Ng
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Evelyn Yin-Kwan Wong
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Ivan Tak-Fai Wong
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Rebecca Po-Po Sze
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Kit-Yu Chan
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Tsz-Yan So
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Zhipeng Zhang
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Sharon Ka-Yee Fung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Sally Choi-Ying Wong
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Wing-Yin Tam
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Hiu-Yin Lao
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Lam-Kwong Lee
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Jake Siu-Lun Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Chloe Toi-Mei Chan
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Timothy Ting-Leung Ng
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Jiaying Zhang
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Franklin Wang-Ngai Chow
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Polly Hang-Mei Leung
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Gilman Kit-Hang Siu
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China.
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5
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Meidaninikjeh S, Mohammadi P, Elikaei A. Bacteriophages and bacterial extracellular vesicles, threat or opportunity? Life Sci 2024; 350:122749. [PMID: 38821215 DOI: 10.1016/j.lfs.2024.122749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/25/2024] [Accepted: 05/23/2024] [Indexed: 06/02/2024]
Abstract
Emergence of antimicrobial-resistant bacteria (AMR) is one of the health major problems worldwide. The scientists are looking for a novel method to treat infectious diseases. Phage therapy is considered a suitable approach for treating infectious diseases. However, there are different challenges in this way. Some biological aspects can probably influence on therapeutic results and further investigations are necessary to reach a successful phage therapy. Bacteriophage activity can influence by bacterial defense system. Bacterial extracellular vesicles (BEVs) are one of the bacterial defense mechanisms which can modify the results of bacteriophage activity. BEVs have the significant roles in the gene transferring, invasion, escape, and spreading of bacteriophages. In this review, the defense mechanisms of bacteria against bacteriophages, especially BEVs secretion, the hidden linkage of BEVs and bacteriophages, and its possible consequences on the bacteriophage activity as well phage therapy will be discussed.
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Affiliation(s)
- Sepideh Meidaninikjeh
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran.
| | - Parisa Mohammadi
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran; Research Center for Applied Microbiology and Microbial Biotechnology, Alzahra University, Tehran, Iran.
| | - Ameneh Elikaei
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran; Research Center for Applied Microbiology and Microbial Biotechnology, Alzahra University, Tehran, Iran.
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6
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Khademi Dehkordi M, Hoveida L, Fani N. Structure-based virtual screening, molecular docking, and molecular dynamics simulation approaches for identification of new potential inhibitors of class a β-lactamase enzymes. J Biomol Struct Dyn 2024; 42:5631-5641. [PMID: 37534493 DOI: 10.1080/07391102.2023.2227724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 06/14/2023] [Indexed: 08/04/2023]
Abstract
Bacteria are smart organisms that create drug resistance by decreasing the effect of antibiotics in different ways, such as secretion of the β-lactamase enzymes. Finding the compounds that can act as the inhibitors of these enzymes is a great help in reducing drug resistance and treat all types of infections. In this study, using molecular docking and molecular dynamics simulation techniques, we introduced two Relebactam substructures as new inhibitors of class A β-lactamase enzymes. Results of molecular docking show that the conformation of these two compounds in the active site of class A β-lactamase enzymes has a good match with Relebactam and their binding affinity to enzymes is equal to or better than Relebactam. Results showed a good tendency for binding and the formation of van der Waals and hydrogen interactions between the desired compounds and the β-lactamase enzymes. The results of the analysis of the molecular dynamics simulation trajectories showed that in the presence of the desired compounds, the second structures of the enzymes did not undergo many changes and in none of the systems, the binding of the compounds to the enzyme did not cause much instability, and in most cases made the structure stable. The hydrogen bonds were stable during the simulation time and in most cases, the new compounds formed more hydrogen bonds and had better binding affinity than Relebactam confirms the docking results. The results of this study can be helpful in designing new beta-lactamase inhibitors and new treatment methods to deal with drug resistance.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Laleh Hoveida
- Department of Microbiology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
| | - Najmeh Fani
- Iliya Computational Research Center (ICRC), Isfahan University of Technology, Isfahan, Iran
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7
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Yakubu Y, Daneji AI, Mohammed AA, Jibril A, Umaru A, Aliyu RM, Garba B, Lawal N, Jibril AH, Shuaibu AB. Understanding the awareness of antimicrobial resistance amongst commercial poultry farmers in northwestern Nigeria. Prev Vet Med 2024; 228:106226. [PMID: 38781693 DOI: 10.1016/j.prevetmed.2024.106226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/27/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024]
Abstract
The emergence of antimicrobial resistance (AMR) in both humans and animals is a growing health threat worldwide. Significant quantities of antibiotics are used in the livestock production sector, particularly in poultry farming to enhance growth and productivity. A cross-sectional study was conducted in three states of northwestern Nigeria to understand the level of knowledge, attitude, and practice of commercial poultry farmers on antimicrobial resistance. A total of 247 poultry farmers enrolled in the study comprising 100 (40.5 %) from Sokoto, 68 from Kebbi (27.5 %) and 79 (32.0 %) from Zamfara States. A significant number of the farmers have good knowledge of antimicrobial use (94.74 %), and the potential emergence of antimicrobial resistant bacteria due to irrational administration of antibiotics (83.0 %). Kruskal-Wallis test showed a significant difference in farmers' knowledge of AMR based on their educational qualification (p < 0.001) as farmers with bachelor's degree (BSc) being more knowledgeable than those with Ordinary National Diploma (OND) and those who only completed primary or secondary education. A statistically significant difference was also observed in the attitude of the participants based on State (p < 0.001) and educational qualification (p = 0.013). The study provided valuable insight into the understanding of antimicrobial resistance amongst commercial poultry farmers in the region. The findings necessitate the need for educational interventions and initiatives through enlightenment campaigns and deployment of extension workers to reach farmers with low level of education to further improve their attitudes and practice towards responsible use of antibiotics.
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Affiliation(s)
- Y Yakubu
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria.
| | - A I Daneji
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - A A Mohammed
- Department of Veterinary Parasitology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - A Jibril
- Department of Theriogenology and Animal Production, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - A Umaru
- Department of Theriogenology and Animal Production, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - R M Aliyu
- Department of Veterinary Microbiology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - B Garba
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - N Lawal
- Department of Veterinary Microbiology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - A H Jibril
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
| | - A B Shuaibu
- Department of Veterinary Microbiology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University PMB 2346, Sokoto, Nigeria
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Ganesh PS. 4-hydroxy-3-methoxybenzaldehyde causes attrition of biofilm formation and quorum sensing-associated virulence factors of Streptococcus mutans. Arch Oral Biol 2024; 163:105976. [PMID: 38640776 DOI: 10.1016/j.archoralbio.2024.105976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/11/2024] [Accepted: 04/14/2024] [Indexed: 04/21/2024]
Abstract
OBJECTIVE The present study investigated the effects of 4-hydroxy-3-methoxybenzaldehyde (4-H-3-MB) against Streptococcus mutans (S. mutans) using an in vitro cariogenic biofilm model. DESIGN The antimicrobial susceptibility of biofilm-forming S. mutans was evaluated by disc diffusion method. In vitro investigations were performed using crystal violet staining assay (biofilm assay), exopolysaccharide (EPS) assay, acid production, growth curve analysis, optical microscopic, and FE-SEM analyses to determine the antibiofilm activity of 4-H-3-MB. RESULTS S. mutans (SDC-05) was resistant to ampicillin, piperacillin/tazobactam and ceftriaxone, whereas the other strains of S. mutans (SDC-01, 02, 03 and SDC-04) were sensitive to all the antibiotics tested. 4-H-3-MB showed promising antibiofilm activity on S. mutans UA159 (79.81 %, 67.76 % and 56.31 %) and S. mutans SDC-05 (77.00 %, 59.48 % and 48.22 %) at the lowest concentration of 0.2, 0.1, 0.05 mg/ml. 4-H-3-MB did not inhibit bacterial growth even at concentrations 0.2 mg/ml. Similarly, 4-H-3-MB led to significant attrition in exopolysaccharide (EPS) and acid production by S. mutans UA159 and S. mutans (SDC-05) at the concentration of 0.2, 0.1 mg/ml, respectively. Optical microscopy and FE-SEM analysis 4-H-3-MB reduced the biofilm thickness of S. mutans UA159 and S. mutans SDC-05 relative to the untreated specimens. CONCLUSION 4-H-3-MB significantly inhibited biofilm formation by S. mutans in a dose-dependent manner. Hence, our findings indicate that the active principle of 4-H-3-MB could be used as a biofilm inhibiting agent against S. mutans.
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Affiliation(s)
- Pitchaipillai Sankar Ganesh
- Department of Microbiology, Centre for Infectious Diseases, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University (Deemed to be University), Chennai 600 077, Tamilnadu, India.
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Zaki AH, Saleh Gazwi HS, Hamed MM, Galal SM, Almehmadi AM, Almuraee AA, Alqurashi AF, Yassien EE. The synergistic potential of orange peel extract: A comprehensive investigation into its phenolic composition, antioxidant, antimicrobial, and functional fortification properties in yogurt. Food Chem X 2024; 22:101458. [PMID: 38803668 PMCID: PMC11129169 DOI: 10.1016/j.fochx.2024.101458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/05/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
The study explores the potential of orange peel extract (OPE) as a versatile natural resource, focusing on its phenolic composition, antioxidant, and antibacterial properties, as well as its application in fortifying yogurt. Analysis revealed significant concentrations of phenolic compounds in OPE. OPE exhibited notable antibacterial efficacy against pathogenic bacteria, particularly marine Escherichia coli, with synergistic effects observed when combined with Amikacin. Incorporating OPE into yogurt led to changes in chemical composition, enhancing total proteins, fat, and ash content. Fortified yogurt showed increased antioxidant activity and potential anti-cancer properties against HCT116 cell lines. In conclusion, OPE emerges as a rich source of bioactive compounds with diverse applications, from its antioxidant and antibacterial properties to its potential in fortifying functional foods like yogurt. This comprehensive exploration provides valuable insights into the multifaceted benefits of OPE, paving the way for its utilization in various industries and health-related applications.
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Affiliation(s)
- Asmaa Hussein Zaki
- Department of Agricultural Chemistry, Agriculture Faculty, Minia University, El-Minia, Egypt
| | - Hanaa Salem Saleh Gazwi
- Department of Agricultural Chemistry, Agriculture Faculty, Minia University, El-Minia, Egypt
| | | | - Salma Mohamed Galal
- Department of Dairy Science, Agriculture Faculty, Minia University, El-Minia, Egypt
| | - Awatif Musallam Almehmadi
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Umm AL-Qura University, P.O. BOX, 715, Makkah 21955, Saudi Arabia
| | - Areej Abdulhamid Almuraee
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Umm AL-Qura University, P.O. BOX, 715, Makkah 21955, Saudi Arabia
| | - Amal Fahad Alqurashi
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Umm AL-Qura University, P.O. BOX, 715, Makkah 21955, Saudi Arabia
| | - Eman Elhossainy Yassien
- Department of Agricultural Chemistry, Agriculture Faculty, Minia University, El-Minia, Egypt
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10
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Abass S, Parveen R, Irfan M, Malik Z, Husain SA, Ahmad S. Mechanism of antibacterial phytoconstituents: an updated review. Arch Microbiol 2024; 206:325. [PMID: 38913205 DOI: 10.1007/s00203-024-04035-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 06/05/2024] [Indexed: 06/25/2024]
Abstract
The increase of multiple drug resistance bacteria significantly diminishes the effectiveness of antibiotic armory and subsequently exaggerates the level of therapeutic failure. Phytoconstituents are exceptional substitutes for resistance-modifying vehicles. The plants appear to be a deep well for the discovery of novel antibacterial compounds. This is owing to the numerous enticing characteristics of plants, they are easily accessible and inexpensive, extracts or chemicals derived from plants typically have significant levels of action against infections, and they rarely cause serious adverse effects. The enormous selection of phytochemicals offers very distinct chemical structures that may provide both novel mechanisms of antimicrobial activity and deliver us with different targets in the interior of the bacterial cell. They can directly affect bacteria or act together with the crucial events of pathogenicity, in this manner decreasing the aptitude of bacteria to create resistance. Abundant phytoconstituents demonstrate various mechanisms of action toward multi drug resistance bacteria. Overall, this comprehensive review will provide insights into the potential of phytoconstituents as alternative treatments for bacterial infections, particularly those caused by multi drug resistance strains. By examining the current state of research in this area, the review will shed light on potential future directions for the development of new antimicrobial therapies.
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Affiliation(s)
- Sageer Abass
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Rabea Parveen
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Mohammad Irfan
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Zoya Malik
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Syed Akhtar Husain
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Sayeed Ahmad
- Centre of Excellence in Unani Medicine (Pharmacognosy and Pharmacology), Bioactive Natural Product Laboratory, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India.
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Revathi S, Dey N, Thangaleela S, Vinayagam S, Gnanasekaran L, Sundaram T, Malik A, Khan AA, Roy A, Kumar A. Nanocarrier optimization: Encapsulating Hydrastis canadensis in chitosan nanoparticles for enhanced antibacterial and dye degradation performance. Int J Biol Macromol 2024:133316. [PMID: 38908618 DOI: 10.1016/j.ijbiomac.2024.133316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/28/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
This study focuses on the optimization of Hydrastis canadensis-based nanocarriers in environmental and microbial applications like antibacterial and dye degradation. Hydrastis canadensis (H. canadensis) is loaded into the nanocarrier using a gelation method. Characterization involves pH analysis, UV-VIS spectrophotometry, scanning electron microscopy, Fourier-transform infrared spectroscopy, dynamic light scattering, high-performance liquid chromatography, encapsulation efficiency. Further antimicrobial activity against Staphylococcus aureus and Escherichia coli were tested. Dye degradation was evaluated at concentrations of 1 % of high molecular (HM) and 1.5 % of low molecular (LM) chitosan nanoparticles with both 3C and 1000C concentrations of the drug. The obtained results confirm the presence of chitosan nanocarrier alongside the pure drug in 1 % HM and 1.5 % LM chitosan particles with a notable encapsulation efficiency activity in both 3C and 1000C concentrations. Antimicrobial studies were carried out using the agar well diffusion method and revealed a significant zone of inhibition of 20 mm and 25 mm for E. coli and S. aureus, respectively in chitosan nanocarrier-loaded samples compared to pure drug and chitosan nanocarriers samples. The dye degradation studies of four dyes methylene blue, methylene orange, methylene red, and safranin using both pure drugs and chitosan nanocarrier-loaded drugs showed the highest percentage of degradation (76 %) against methylene blue in the chitosan nanocarrier-drug loaded formulation. These findings cumulatively underscore chitosan nanoparticles can be used as an effective carrier for Hydrastis Canadensis, with enhanced antimicrobial and dye degradation capabilities. Varied concentrations and molecular weights highlight the versatility of the ionotropic gelation method in optimizing drug delivery. Enhanced efficacy of the nanocarrier was evident in the observed zone of inhibition in antimicrobial testing. The substantial degradation percentage in methylene blue emphasizes the formulation's applicability in environmental dye removal processes, with potential avenues for improvement explored through interactions between the chitosan nanocarrier and H. canadensis characteristics. Future investigations may focus on scaling up the optimized formulation for large-scale applications and exploring release kinetics and comprehensive toxicity assessments for a holistic understanding of potential environmental and biomedical implications.
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Affiliation(s)
- Sorimuthu Revathi
- Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 602105, India
| | - Nibedita Dey
- Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 602105, India.
| | - Subramanian Thangaleela
- Department of Medical Biotechnology and Integrative Physiology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 602105, India
| | - Saranya Vinayagam
- Department of Biosciences, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamil Nadu 602 105, India
| | | | - Thanigaivel Sundaram
- Department of Biotechnology, Faculty of Science & Humanities, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India.
| | - Abdul Malik
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Arpita Roy
- Department of Biotechnology, Sharda School of Engineering & Technology, Sharda University, Greater Noida 201310, India.
| | - Ashish Kumar
- Division of Research and Development, Lovely Professional University, Phagwara, India
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Hayakawa K, Asai Y, Tajima T, Endo M, Kawabata J, Fujii N, Sakaguchi M, Ishioka H, Tsuzuki S, Matsunaga N, Ohmagari N, Fukuda H. Evaluation of antimicrobial selective pressure using the multicenter semiautomatic surveillance system Japan surveillance for infection prevention and healthcare epidemiology. J Infect Public Health 2024; 17:102474. [PMID: 38908067 DOI: 10.1016/j.jiph.2024.102474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 04/30/2024] [Accepted: 06/05/2024] [Indexed: 06/24/2024] Open
Abstract
BACKGROUND Evaluating the selective pressure of antimicrobials on bacteria is important for promoting antimicrobial stewardship programs (ASPs). The aim of this study was to assess the selective pressure of antimicrobials by evaluating their use (carbapenem [CBP] and CBP-sparing therapy) over time and the detection status of CBP-resistant organisms using multicenter data. METHODS Among the facilities whose data were registered in the Japan Surveillance for Infection Prevention and Healthcare Epidemiology from 2017 to 2020, those that had data on the use of CBP and CBP-sparing therapy (fluoroquinolones [FQs], cefmetazole [CMZ], piperacillin-tazobactam [PIP/TAZ], ampicillin-sulbactam [ABPC/SBT], ceftriaxone/cefotaxime [CTRX/CTX], CAZ (ceftazidime), cefepime [CFPM], and aminoglycosides [AGs]) as well as on CBP-resistant Enterobacterales (CRE) and CBP-resistant Pseudomonas aeruginosa (CRPA) detection were included. Alcohol-based hand rubbing (ABHR) usage was also analyzed. Regression analyses, including multivariable regression analysis, were performed to evaluate trends. The association of antimicrobial use density (AUD) with CRE and CRPA detection rates was evaluated. RESULTS In 28 facilities nationwide, CBP, FQ, CAZ, AG, and PIP/TAZ use decreased over the 3-year period, whereas the use of CMZ, ABPC/SBT, CTRX/CTX, CFPM, and ABHR as well as the rates of CRE and CRPA detection increased. The average AUD did not significantly correlate with CRE and CRPA detection rates. The multivariable regression analysis did not reveal any significant correlation between each AUD or ABHR and CRE or CRPA detection. CONCLUSION CBP and ABHR use showed a decreasing and an increasing trend, respectively, while CRPA and CRE detection rates exhibited a gradual increase. The considerably low CRE and CRPA detection rates suggest that slight differences in numbers may have been observed as excessive trend changes. Further investigation is warranted to evaluate selective pressure while considering the characteristics of ASP and the mechanisms underlying resistance.
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Affiliation(s)
- Kayoko Hayakawa
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan; Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan.
| | - Yusuke Asai
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan; Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Taichi Tajima
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Mio Endo
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Jun Kawabata
- Advanced Emergency Medical Service Center, Kurume University Hospital, Kurume, Japan
| | - Naoki Fujii
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Mikiyo Sakaguchi
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Haruhiko Ishioka
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Shinya Tsuzuki
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan; Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan; Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Nobuaki Matsunaga
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Norio Ohmagari
- AMR Clinical Reference Center, National Center for Global Health and Medicine, Tokyo, Japan; Disease Control and Prevention Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Haruhisa Fukuda
- Department of Health Care Administration and Management, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
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Salpadoru T, Pinks KE, Lieberman JA, Cotton K, Wozniak KL, Gerasimchuk N, Patrauchan MA. Novel antimony-based antimicrobial drug targets membranes of Gram-positive and Gram-negative bacterial pathogens. Microbiol Spectr 2024; 12:e0423423. [PMID: 38651882 DOI: 10.1128/spectrum.04234-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
Antimicrobial resistance (AMR) poses a significant worldwide public health crisis that continues to threaten our ability to successfully treat bacterial infections. With the decline in effectiveness of conventional antimicrobial therapies and the lack of new antibiotic pipelines, there is a renewed interest in exploring the potential of metal-based antimicrobial compounds. Antimony-based compounds with a long history of use in medicine have re-emerged as potential antimicrobial agents. We previously synthesized a series of novel organoantimony(V) compounds complexed with cyanoximates with a strong potential of antimicrobial activity against several AMR bacterial and fungal pathogens. Here, five selected compounds were studied for their antibacterial efficacy against three important bacterial pathogens: Pseudomonas aeruginosa, Escherichia coli, and Staphylococcus aureus. Among five tested compounds, SbPh4ACO showed antimicrobial activity against all three bacterial strains with the MIC of 50-100 µg/mL. The minimum bactericidal concentration/MIC values were less than or equal to 4 indicating that the effects of SbPh4ACO are bactericidal. Moreover, ultra-thin electron microscopy revealed that SbPh4ACO treatment caused membrane disruption in all three strains, which was further validated by increased membrane permeability. We also showed that SbPh4ACO acted synergistically with the antibiotics, polymyxin B and cefoxitin used to treat AMR strains of P. aeruginosa and S. aureus, respectively, and that at synergistic MIC concentration 12.5 µg/mL, its cytotoxicity against the cell lines, Hela, McCoy, and A549 dropped below the threshold. Overall, the results highlight the antimicrobial potential of novel antimony-based compound, SbPh4ACO, and its use as a potentiator of other antibiotics against both Gram-positive and Gram-negative bacterial pathogens. IMPORTANCE Antibiotic resistance presents a critical global public health crisis that threatens our ability to combat bacterial infections. In light of the declining efficacy of traditional antibiotics, the use of alternative solutions, such as metal-based antimicrobial compounds, has gained renewed interest. Based on the previously synthesized innovative organoantimony(V) compounds, we selected and further characterized the antibacterial efficacy of five of them against three important Gram-positive and Gram-negative bacterial pathogens. Among these compounds, SbPh4ACO showed broad-spectrum bactericidal activity, with membrane-disrupting effects against all three pathogens. Furthermore, we revealed the synergistic potential of SbPh4ACO when combined with antibiotics, such as cefoxitin, at concentrations that exert no cytotoxic effects tested on three mammalian cell lines. This study offers the first report on the mechanisms of action of novel antimony-based antimicrobial and presents the therapeutic potential of SbPh4ACO in combating both Gram-positive and Gram-negative bacterial pathogens while enhancing the efficacy of existing antibiotics.
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Affiliation(s)
- Tarosha Salpadoru
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Kevin E Pinks
- Department of Chemistry and Biochemistry, Missouri State University, Springfield, Missouri, USA
| | - Jacob A Lieberman
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Kaitlyn Cotton
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Karen L Wozniak
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, Oklahoma, USA
| | - Nikolay Gerasimchuk
- Department of Chemistry and Biochemistry, Missouri State University, Springfield, Missouri, USA
| | - Marianna A Patrauchan
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, Oklahoma, USA
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14
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Cui Y, Yi C, Zhang C, Yang C, Wang X, Chen W, Peng Y, Dai J. Risk factors for bloodstream infection among patients admitted to an intensive care unit of a tertiary hospital of Shanghai, China. Sci Rep 2024; 14:12765. [PMID: 38834645 DOI: 10.1038/s41598-024-63594-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/30/2024] [Indexed: 06/06/2024] Open
Abstract
Blood flow infections (BSIs) is common occurrences in intensive care units (ICUs) and are associated with poor prognosis. The study aims to identify risk factors and assess mortality among BSI patients admitted to the ICU at Shanghai Ruijin hospital north from January 2022 to June 2023. Additionally, it seeks to present the latest microbiological isolates and their antimicrobial susceptibility. Independent risk factors for BSI and mortality were determined using the multivariable logistic regression model. The study found that the latest incidence rate of BSI was 10.11%, the mortality rate was 35.21% and the mean age of patients with BSI was 74 years old. Klebsiella pneumoniae was the predominant bacterial isolate. Logistic multiple regression revealed that tracheotomy, tigecycline, gastrointestinal bleeding, shock, length of hospital stay, age and laboratory indicators (such as procalcitonine and hemoglobin) were independent risk factors for BSI. Given the elevated risk associated with use of tracheotomy and tigecycline, it underscores the importance of the importance of cautious application of tracheostomy and empirical antibiotic management strategies. Meanwhile, the independent risk factors of mortality included cardiovascular disease, length of hospital stay, mean platelet volume (MPV), uric acid levels and ventilator. BSI patients exhibited a significant decrease in platelet count, and MPV emerged as an independent factor of mortality among them. Therefore, continuous monitoring of platelet-related parameters may aid in promptly identifying high-risk patients and assessing prognosis. Moreover, monitoring changes in uric acid levels may serve as an additional tool for prognostic evaluation in BSI patients.
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Affiliation(s)
- Yingchao Cui
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China
| | - Changlin Yi
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China
| | - Chaomin Zhang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China
| | - Chihui Yang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China
| | - Xinyi Wang
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China
| | - Wenkai Chen
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China
| | - Yibing Peng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China.
| | - Jing Dai
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197 Second Ruijin ER Road, Shanghai, 200025, China.
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15
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Vitiello A, Sabbatucci M, Salzano A, Zovi A. The importance of antibiotic treatment duration in antimicrobial resistance. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04867-y. [PMID: 38833103 DOI: 10.1007/s10096-024-04867-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
Antimicrobial resistance (AMR) poses a significant threat to global health, leading to increased deaths from drug-resistant infections and escalates healthcare costs. Often termed a "silent pandemic," AMR occurs when pathogens become resistant to antimicrobial drugs, enabling their proliferation and spread. Inappropriate antibiotic usage is a major contributor to this phenomenon, which also extends to fungal infections. In particular, the duration of antibiotic therapy is a crucial aspect, with evidence suggesting that prolonged use can heighten bacterial resistance and harm the human microbiota. In fact, studies comparing short-term versus long-term antibiotic therapies show no significant difference in traditional treatments. In addition, therapeutic drug monitoring allows personalized antibiotic regimens, optimizing dosage and duration to minimize resistance and adverse effects. As a result, clinicians should regularly reassess treatment effectiveness, utilizing techniques like antibiotic timeout and de-escalation therapy to avoid prolonged antibiotic use and mitigate resistance. All these strategies are crucial to prevent and counter the phenomenon of antimicrobial resistance.
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Affiliation(s)
- Antonio Vitiello
- Clinical pharmacologist, Directorate General for Health Prevention, Italian Ministry of Health, Rome, Italy
| | - Michela Sabbatucci
- Department Infectious Diseases, Italian National Institute of Health, Viale Regina Elena 299, Rome, 00161, Italy
| | - Antonio Salzano
- Directorate General for Health Prevention, Italian Ministry of Health, Rome, Italy
| | - Andrea Zovi
- Doctor in Pharmacy (PharmD), Italian Ministry of Health, Rome, Italy.
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16
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Anwar Y, Jaha HF, Ul-Islam M, Kamal T, Khan SB, Ullah I, Al-Maaqar SM, Ahmed S. Development of silver-doped copper oxide and chitosan nanocomposites for enhanced antimicrobial activities. Z NATURFORSCH C 2024; 0:znc-2023-0166. [PMID: 38820053 DOI: 10.1515/znc-2023-0166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 05/10/2024] [Indexed: 06/02/2024]
Abstract
Antimicrobial resistance (AMR) has emerged as a significant and pressing public health concern, posing serious challenges to effectively preventing and treating persistent diseases. Despite various efforts made in recent years to address this problem, the global trends of AMR continue to escalate without any indication of decline. As AMR is well-known for antibiotics, developing new materials such as metal containing compounds with different mechanisms of action is crucial to effectively address this challenge. Copper, silver, and chitosan in various forms have demonstrated significant biological activities and hold promise for applications in medicine and biotechnology. Exploring the biological properties of these nanoparticles is essential for innovative therapeutic approaches in treating bacterial and fungal infections, cancer, and other diseases. To this end, the present study aimed to synthesize silver@copper oxide (Ag@CuO) nanoparticles and its chitosan nanocomposite (Chi-Ag@CuO) to investigate their antimicrobial efficacy. Various established spectroscopic and microscopic methods were employed for characterization purposes, encompassing scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Subsequently, the antimicrobial activity of the nanoparticles was assessed through MIC (minimum inhibitory concentration), MBC (minimum bactericidal concentration), and well-disk diffusion assays against Pseudomonas aeruginosa, Acinetobacter baumannii Staphylococcus aureus, Staphylococcus epidermidis, and Candida albicans. The size of the CuO-NPs, Ag@CuO, and Chi-Ag@CuO NPs was found to be 70-120 nm with a spherical shape and an almost uniform distribution. The nanocomposites were found to possess a minimum inhibitory concentration (MIC) of 5 μg/mL and a minimum bactericidal concentration (MBC) of 250 μg/mL. Moreover, these nanocomposites generated varying clear inhibition zones, with diameters ranging from a minimum of 9 ± 0.5 mm to a maximum of 25 ± 0.5 mm. Consequently, it is evident that the amalgamation of copper-silver-chitosan nanoparticles has exhibited noteworthy antimicrobial properties in the controlled laboratory environment, surpassing the performance of other types of nanoparticles.
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Affiliation(s)
- Yasir Anwar
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Centre of Excellence in Bionanoscience Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Hisham Faiz Jaha
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mazhar Ul-Islam
- Department of Chemical Engineering, Dhofar University, Şalālah 211, Oman
| | - Tahseen Kamal
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, P. O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Sher Bahadar Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Ihsan Ullah
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Saleh M Al-Maaqar
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Biology, Faculty of Education, Albaydha University, Al-Baydha, Yemen
| | - Sameer Ahmed
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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Boltena MT, Wolde M, Hailu B, El-Khatib Z, Steck V, Woldegerima S, Siraneh Y, Morankar S. Point prevalence of evidence-based antimicrobial use among hospitalized patients in sub-Saharan Africa: a systematic review and meta-analysis. Sci Rep 2024; 14:12652. [PMID: 38825623 PMCID: PMC11144712 DOI: 10.1038/s41598-024-62651-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 05/20/2024] [Indexed: 06/04/2024] Open
Abstract
Excessive and improper use of antibiotics causes antimicrobial resistance which is a major threat to global health security. Hospitals in sub-Saharan Africa (SSA) has the highest prevalence of antibiotic use. This systematic review and meta-analysis aimed to determine the pooled point prevalence (PPP) of evidence-based antimicrobial use among hospitalized patients in SSA. Literature was retrieved from CINAHL, EMBASE, Google Scholar, PubMed, Scopus, and Web of Science databases. Meta-analysis was conducted using STATA version 17. Forest plots using the random-effect model were used to present the findings. The heterogeneity and publication bias were assessed using the I2 statistics and Egger's test. The protocol was registered in PROSPERO with code CRD42023404075. The review was conducted according to PRISMA guidelines. A total of 26, 272 study participants reported by twenty-eight studies published from 10 countries in SSA were included. The pooled point prevalence of antimicrobial use in SSA were 64%. The pooled estimate of hospital wards with the highest antibiotic use were intensive care unit (89%). The pooled prevalence of the most common clinical indication for antibiotic use were community acquired infection (41%). The pooled point prevalence of antimicrobial use among hospitalized patients were higher in SSA. Higher use of antibiotics was recorded in intensive care units. Community acquired infection were most common clinical case among hospitalized patients. Health systems in SSA must design innovative digital health interventions to optimize clinicians adhere to evidence-based prescribing guidelines and improve antimicrobial stewardship.
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Affiliation(s)
- Minyahil Tadesse Boltena
- Ethiopian Evidence Based Health Care Centre: A Joanna Briggs Institute's Center of Excellence, Faculty of Public Health, Institute of Health, Jimma University, Jimma, Ethiopia.
- Armauer Hansen Research Institute, Ministry of Health, Addis Ababa, Ethiopia.
| | - Mirkuzie Wolde
- Ethiopian Evidence Based Health Care Centre: A Joanna Briggs Institute's Center of Excellence, Faculty of Public Health, Institute of Health, Jimma University, Jimma, Ethiopia
- University of Technology Sydney, Sydney, Australia
| | - Belachew Hailu
- Armauer Hansen Research Institute, Ministry of Health, Addis Ababa, Ethiopia
| | - Ziad El-Khatib
- Global Public Health Department, Karolinska Institute, Solna, Sweden
| | - Veronika Steck
- Department of Pharmacology and Therapeutics, Faculty of Life Sciences, McGill University, Montreal, Canada
| | - Selam Woldegerima
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Yibeltal Siraneh
- Ethiopian Evidence Based Health Care Centre: A Joanna Briggs Institute's Center of Excellence, Faculty of Public Health, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Sudhakar Morankar
- Ethiopian Evidence Based Health Care Centre: A Joanna Briggs Institute's Center of Excellence, Faculty of Public Health, Institute of Health, Jimma University, Jimma, Ethiopia
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Trehan R, Goujet R, Sharma T, Vats A, Patel N, Bhardwaj A. The role of gaming for information, education and communication of AMR: full review of online education resources. JAC Antimicrob Resist 2024; 6:dlae080. [PMID: 38863557 PMCID: PMC11165311 DOI: 10.1093/jacamr/dlae080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024] Open
Abstract
Background The first objective of the Global Action Plan on antimicrobial resistance (AMR) is to improve awareness and understanding of AMR through effective communication, education and training. Towards this several efforts have been made to create AMR awareness resources. The aim of these resources is to inform the public about responsible antibiotic use and drive positive behavioural change. Digital media and specifically games can serve as unique innovative platforms in public communication programmes. Objectives This study focuses on compiling and evaluating game-based AMR resources. Recognizing the engaging and creative potential of games as learning tools, the primary objective of this study was to identify games that can be used, individually or in combination depending on their unique focus and gameplay experience, for AMR awareness. Furthermore, games are evaluated on five objective criteria and recommendations are made towards further development of gaming resources towards AMR awareness. Methods Meticulous curation was performed to mine information, education and communication resources, with a primary focus on games for AMR awareness and evaluating them based on game design and gameplay, AMR content and learning, engagement and replay appeal, learning outcomes, and level of difficulty and challenges. Results In this study, we selected 12 AMR games. Our evaluations, spanning various gamification elements and interactive parameters, informed recommendations for future AMR resource development, including multilevel game design, varied graphics, simple-to-understand rules, sustained challenge and a sense of reward, among others. Conclusions This study generated the first-ever comprehensive catalogue of AMR games that may assist public communication programmes for AMR awareness. Evaluation of these games led to actionable design recommendations for future resources towards effective communication of AMR complexity, enhanced learning and awareness.
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Affiliation(s)
- Romita Trehan
- Bioinformatics Centre, CSIR-Institute of Microbial Technology, Chandigarh 160036, India
- Department of Life Sciences, Imperial College London, South Kensington, London, UK
| | - Raphael Goujet
- Inserm, System Engineering and Evolution Dynamics, Université Paris Cité, Paris, France
- Learning Planet Institute, Paris, France
| | - Tina Sharma
- Bioinformatics Centre, CSIR-Institute of Microbial Technology, Chandigarh 160036, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Abhinav Vats
- School of Biological Sciences, UM-DAE Centre for Excellence in Basic Sciences, University of Mumbai, Kalina Campus, Mumbai, Maharashtra, India
| | - Nidhiben Patel
- Inserm, System Engineering and Evolution Dynamics, Université Paris Cité, Paris, France
- Learning Planet Institute, Paris, France
| | - Anshu Bhardwaj
- Bioinformatics Centre, CSIR-Institute of Microbial Technology, Chandigarh 160036, India
- Inserm, System Engineering and Evolution Dynamics, Université Paris Cité, Paris, France
- Learning Planet Institute, Paris, France
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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19
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Ijaz M, Sabir MJ, Javed MU, Ahmed A, Rasheed H, Jabir AA. Molecular insights into expression and silencing of resistance determinants in Staphylococcus aureus. Trop Med Int Health 2024; 29:526-535. [PMID: 38715472 DOI: 10.1111/tmi.14000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
OBJECTIVE This study aimed to investigate the status of antimicrobial-resistant strains of Staphylococcus aureus in Pakistan, their association in terms of co-occurrence with the biofilm-forming genes, resistance profiling and associated discrepancies in diagnostic methods. METHODOLOGY A total of 384 milk samples from bovine was collected by using convenient sampling technique and were initially screened for subclinical mastitis, further preceded by isolation and confirmation of S. aureus. The S. aureus isolates were subjected to evaluation of antimicrobial resistance by phenotypic identification using Kirby-Bauer disc diffusion method, while the genotypic estimation was done by polymerase chain reaction to declare isolates as methicillin, beta-lactam, vancomycin, tetracycline, and aminoglycoside resistant S. aureus (MRSA, BRSA, VRSA, TRSA, and ARSA), respectively. RESULTS The current study revealed an overall prevalence of subclinical mastitis and S. aureus to be 59.11% and 46.69%, respectively. On a phenotypic basis, the prevalence of MRSA, BRSA, VRSA, TRSA, and ARSA was found to be 44.33%, 58.49%, 20.75%, 35.84%, and 30.18%, respectively. The results of PCR analysis showed that 46.80% of the tested isolates were declared as MRSA, 37.09% as BRSA, and 36.36% as VRSA, while the occurrence of TRSA and ARSA was observed in 26.31% and 18.75%, respectively. The current study also reported the existence of biofilm-producing genes (icaA and icaD) in 49.06% and 40.57% isolates, respectively. Lastly, this study also reported a high incidence of discrepancies for both genotypic and phenotypic identification methods of resistance evaluation, with the highest discrepancy ratio for the accA-aphD gene, followed by tetK, vanB, blaZ, and mecA genes. CONCLUSION The study concluded that different antibiotic resistance strains of S. aureus are prevalent in study districts with high potential to transmit between human populations. The study also determined that there are multiple resistance determinants and mechanisms that are responsible for the silencing and expression of antibiotic resistance genes.
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Affiliation(s)
- Muhammad Ijaz
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Jawad Sabir
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Umar Javed
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Arslan Ahmed
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Hamza Rasheed
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Ali Abdullah Jabir
- Department of Veterinary Medicine, University of Veterinary and Animal Sciences, Lahore, Pakistan
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20
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Yamba K, Chizimu JY, Mudenda S, Lukwesa C, Chanda R, Nakazwe R, Simunyola B, Shawa M, Kalungia AC, Chanda D, Mateele T, Thapa J, Kapolowe K, Mazaba ML, Mpundu M, Masaninga F, Azam K, Nakajima C, Suzuki Y, Bakyaita NN, Wesangula E, Matu M, Chilengi R. Assessment of antimicrobial resistance laboratory-based surveillance capacity of hospitals in Zambia: findings and implications for system strengthening. J Hosp Infect 2024; 148:129-137. [PMID: 38621513 PMCID: PMC11171463 DOI: 10.1016/j.jhin.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/14/2024] [Accepted: 03/19/2024] [Indexed: 04/17/2024]
Abstract
BACKGROUND A well-established antimicrobial resistance (AMR) laboratory-based surveillance (LBS) is of utmost importance in a country like Zambia which bears a significant proportion of the world's communicable disease burden. This study assessed the capacity of laboratories in selected hospitals to conduct AMR surveillance in Zambia. METHODS This cross-sectional exploratory study was conducted among eight purposively selected hospitals in Zambia between August 2023 and December 2023. Data were collected using the self-scoring Laboratory Assessment of Antibiotic Resistance Testing Capacity (LAARC) tool. FINDINGS Of the assessed facilities, none had full capacity to conduct AMR surveillance with varying capacities ranging from moderate (63% (5/8)) to low (38% (3/8)). Some of the barriers of AMR-LBS were the lack of an electronic laboratory information system (63% (5/8)) and the lack of locally generated antibiograms (75% (6/8)). Quality control for antimicrobial susceptibility testing (AST), pathogen identification and media preparation had the lowest overall score among all of the facilities with a score of 14%, 20% and 44%, respectively. The highest overall scores were in specimen processing (79%), data management (78%), specimen collection, transport and management (71%), and safety (70%). Most facilities had standard operating procedures in place but lacked specimen-specific standard operating procedures. CONCLUSION The absence of laboratories with full capacity to conduct AMR surveillance hinders efforts to combat AMR and further complicates the treatment outcomes of infectious diseases. Establishing and strengthening LBS systems are essential in quantifying the burden of AMR and supporting the development of local antibiograms and treatment guidelines.
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Affiliation(s)
- K Yamba
- Antimicrobial Resistance Coordinating Committee Unit, Zambia National Public Health Institute, Lusaka, Zambia
| | - J Y Chizimu
- Antimicrobial Resistance Coordinating Committee Unit, Zambia National Public Health Institute, Lusaka, Zambia.
| | - S Mudenda
- Department of Pharmacy, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - C Lukwesa
- Department of Health, Lusaka District Health Office, Lusaka, Zambia
| | - R Chanda
- Department of Pathology and Microbiology, University Teaching Hospitals, Lusaka, Zambia
| | - R Nakazwe
- Department of Pathology and Microbiology, University Teaching Hospitals, Lusaka, Zambia
| | - B Simunyola
- Department of Pharmacy, Ministry of Health, Lusaka, Zambia
| | - M Shawa
- Hokudai Center for Zoonosis Control in Zambia, Hokkaido University International Institute for Zoonosis Control, Lusaka, Zambia
| | - A C Kalungia
- Department of Pharmacy, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - D Chanda
- Department of Internal Medicine, University Teaching Hospitals, Lusaka, Zambia
| | - T Mateele
- Department of Internal Medicine, Levy Mwanawasa University Teaching Hospital, Lusaka, Zambia
| | - J Thapa
- Division of Bioresources, Hokkaido University International Institute for Zoonosis Control, Sapporo, Hokkaido, Japan
| | - K Kapolowe
- Department of Internal Medicine, University Teaching Hospitals, Lusaka, Zambia
| | - M L Mazaba
- Antimicrobial Resistance Coordinating Committee Unit, Zambia National Public Health Institute, Lusaka, Zambia
| | - M Mpundu
- Action on Antibiotic Resistance (ReAct) Africa, Lusaka, Zambia
| | - F Masaninga
- Department of Health, World Health Organization, Lusaka, Zambia
| | - K Azam
- Strengthening Pandemic Preparedness, Eastern and Southern Africa Health Community, Arusha, Tanzania
| | - C Nakajima
- Division of Bioresources, Hokkaido University International Institute for Zoonosis Control, Sapporo, Hokkaido, Japan; International Collaboration Unit, Hokkaido University International Institute for Zoonosis Control, Sapporo, Hokkaido, Japan; Division of Research Support, Hokkaido University Institute for Vaccine Research and Development, Sapporo, Hokkaido, Japan
| | - Y Suzuki
- Division of Bioresources, Hokkaido University International Institute for Zoonosis Control, Sapporo, Hokkaido, Japan; International Collaboration Unit, Hokkaido University International Institute for Zoonosis Control, Sapporo, Hokkaido, Japan; Division of Research Support, Hokkaido University Institute for Vaccine Research and Development, Sapporo, Hokkaido, Japan
| | - N N Bakyaita
- Department of Health, World Health Organization, Lusaka, Zambia
| | - E Wesangula
- Strengthening Pandemic Preparedness, Eastern and Southern Africa Health Community, Arusha, Tanzania
| | - M Matu
- Strengthening Pandemic Preparedness, Eastern and Southern Africa Health Community, Arusha, Tanzania
| | - R Chilengi
- Antimicrobial Resistance Coordinating Committee Unit, Zambia National Public Health Institute, Lusaka, Zambia
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21
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Yakobi SH, Magibile YB, Pooe OJ. A systematic review of Neisseria gonorrhoeae drug resistance development in South Africa. Braz J Microbiol 2024; 55:1053-1063. [PMID: 38662152 PMCID: PMC11153458 DOI: 10.1007/s42770-024-01281-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 02/07/2024] [Indexed: 04/26/2024] Open
Abstract
In South Africa, basic healthcare centres treat sexually transmitted infections (STIs) using a syndromic approach. In line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) recommendations, a complete study of all randomised controlled trials and surveillance data relevant to N. gonorrhoeae antibiotic resistance was conducted. To discover papers published between 2002 and 2022, searches were undertaken using PubMed, EMBASE and any other relevant databases. This systematic review extracted a total of 463 articles published between 2002 and 2022 from a variety of online research sources. Seven South African provinces were represented in the studies that were assessed. Mpumalanga and the North West Province did not have any studies that described the identification and monitoring of antimicrobial resistance (AMR). This study presents data obtained from a comprehensive analysis of 2140 isolates, in which we examined the presence of one or more antibiotic resistance. Our findings revealed that out of these samples, 1891 isolates exhibited antimicrobial properties; tetracycline was the antimicrobial resistance that was found the most often (30%), followed by ciprofloxacin (19%) and penicillin (17%). The mean of the isolates was 143, the upper 95% mean was 243, and the standard deviation (SD) was 181.6. All microbiological identification and susceptibility testing processes must be standardised and improved so national organisations can monitor AMR. The nation's health community must address all identified areas of concern to avoid AMR.
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Affiliation(s)
- Sinethemba H Yakobi
- School of Life Sciences, Biochemistry, University of KwaZulu-Natal, Durban, 4041, South Africa.
| | - Yolisa B Magibile
- School of Life Sciences, Biochemistry, University of KwaZulu-Natal, Durban, 4041, South Africa
| | - Ofentse J Pooe
- School of Life Sciences, Biochemistry, University of KwaZulu-Natal, Durban, 4041, South Africa
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22
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Yang L, Zhang Q, Yu D, Zhu W, Wang Y. Synergistic Inhibitions of Gram-Negative Bacteria by Combination Treatment with Ciprofloxacin and a Novel Glucolipid. Chem Biodivers 2024; 21:e202400578. [PMID: 38634186 DOI: 10.1002/cbdv.202400578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/19/2024]
Abstract
Psychrophilic fungus Pseudogymnoascus sp. OUCMDZ-4032 derived from Antarctica was cultivated under 16 °C to produce a new glucolipid compound (1). Its structure was elucidated by analysis of detailed spectroscopic data, acid hydrolysis and 1-phenyl-3-methyl-5-pyrazolone precolumn derivatization, and 13C NMR quantum chemical calculations. Though compound 1 did not show inhibitory activity against bacteria, it can reduce the minimum inhibitory concentration (MIC) of ciprofloxacin against Gram-negative bacteria Pseudomonas aeruginosa, Escherichia coli, and Salmonella paratyphi by 1024, 256 and 256-fold. Compound 1 showed potential as a synergistically inhibiting adjuvant in co-administration with antibiotic to enhance antibacterial activities.
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Affiliation(s)
- Liyuan Yang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Qingqing Zhang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Deng Yu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Weiming Zhu
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Key Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao, 266237, China
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
| | - Yi Wang
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
- Key Laboratory for Marine Drugs and Bioproducts, Laoshan Laboratory, Qingdao, 266237, China
- Key Laboratory of Marine Drugs, Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003, China
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23
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Sharma K, Kumar P, Sharma A, Bari SS, Bhullar G, Sahoo SC, Bhalla A. Dual site reactivity of indole-3-Schiff bases with S/Se/Cl substituted ketenes for stereoselective C-4 substituted indole-β-lactams, biological evaluations, magic chloro effect and molecular docking studies. Bioorg Chem 2024; 147:107337. [PMID: 38626491 DOI: 10.1016/j.bioorg.2024.107337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 04/04/2024] [Indexed: 04/18/2024]
Abstract
A convenient methodology for C-4 indole-β-lactam hybrids with chloro, sulphur and seleno substitutions through dual site reactivity of indole-3-Schiff bases towards ketenes has been developed. The reaction proceeded in a stereospecific manner with the exclusive formation of trans-β-lactams assigned with respect to C3-H and C4-H. The synthesized novel β-lactams have been characterized with the help of elemental analysis (CHNS) and spectroscopic techniques viz.1H NMR, 13C NMR, DEPT 135, HSQC and IR. The trans configuration was further estabilished based on X-ray crystallographic data. Examination of antibacterial properties unveiled that only derivatives 5a and 5b, featuring chloro substitution, exhibited potent activities, underscoring the emergence of the recently coined term "magic chloro effect". Molecular docking analysis provided additional support for the observed in vitro antibacterial activities of compounds 5a-b.
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Affiliation(s)
- Kiran Sharma
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Pankaj Kumar
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Amita Sharma
- Department of Botany, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Shamsher S Bari
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Gaganpreet Bhullar
- Department of Microbial Biotechnology, Panjab University, Chandigarh 160014, India
| | - Subhash C Sahoo
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Aman Bhalla
- Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
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24
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Manhas R, Rathore A, Havelikar U, Mahajan S, Gandhi SG, Mahapa A. Uncovering the potentiality of quinazoline derivatives against Pseudomonas aeruginosa with antimicrobial synergy and SAR analysis. J Antibiot (Tokyo) 2024; 77:365-381. [PMID: 38514856 DOI: 10.1038/s41429-024-00717-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 02/10/2024] [Accepted: 02/27/2024] [Indexed: 03/23/2024]
Abstract
Antimicrobial resistance has emerged as a covert global health crisis, posing a significant threat to humanity. If left unaddressed, it is poised to become the foremost cause of mortality worldwide. Among the multitude of resistant bacterial pathogens, Pseudomonas aeruginosa, a Gram-negative, facultative bacterium, has been responsible for mild to deadly infections. It is now enlisted as a global critical priority pathogen by WHO. Urgent measures are required to combat this formidable pathogen, necessitating the development of novel anti-pseudomonal drugs. To confront this pressing issue, we conducted an extensive screening of 3561 compounds from the ChemDiv library, resulting in the discovery of potent anti-pseudomonal quinazoline derivatives. Among the identified compounds, IDD-8E has emerged as a lead molecule, exhibiting exceptional efficacy against P. aeruginosa while displaying no cytotoxicity. Moreover, IDD-8E demonstrated significant pseudomonal killing, disruption of pseudomonal biofilm and other anti-bacterial properties comparable to a well-known antibiotic rifampicin. Additionally, IDD-8E's synergy with different antibiotics further strengthens its potential as a powerful anti-pseudomonal agent. IDD-8E also exhibited significant antimicrobial efficacy against other ESKAPE pathogens. Moreover, we elucidated the Structure-Activity-Relationship (SAR) of IDD-8E targeting the essential WaaP protein in P. aeruginosa. Altogether, our findings emphasize the promise of IDD-8E as a clinical candidate for novel anti-pseudomonal drugs, offering hope in the battle against antibiotic resistance and its devastating impact on global health.
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Affiliation(s)
- Rakshit Manhas
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Arti Rathore
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ujwal Havelikar
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Shavi Mahajan
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Sumit G Gandhi
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Avisek Mahapa
- Infectious Diseases Division, CSIR- Indian Institute of Integrative Medicine, Jammu, 180001, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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25
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Mudenda S, Chabalenge B, Daka V, Jere E, Sefah I, Wesangula E, Yamba K, Nyamupachitu J, Mugenyi N, Mustafa ZU, Mpundu M, Chizimu J, Chilengi R. Knowledge, awareness and practices of healthcare workers regarding antimicrobial use, resistance and stewardship in Zambia: a multi-facility cross-sectional study. JAC Antimicrob Resist 2024; 6:dlae076. [PMID: 38764535 PMCID: PMC11100357 DOI: 10.1093/jacamr/dlae076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/21/2024] Open
Abstract
Background Antimicrobial resistance (AMR) poses a threat to public health globally. Despite its consequences, there is little information about the knowledge, awareness, and practices towards AMR among healthcare workers (HCWs). Therefore, this study assessed the knowledge, awareness and practices regarding antimicrobial use (AMU), AMR and antimicrobial stewardship (AMS) among HCWs who are involved in the implementation of AMS activities across eight hospitals in Zambia. Methods A cross-sectional study was conducted among 64 HCWs from October to December 2023 using a semi-structured questionnaire. Data were analysed using IBM SPSS version 25.0. Results Of the 64 HCWs, 59.4% were females, 60.9% were aged between 25 and 34 years, 37.5% were nurses, 18.7% were pharmacists, 17.2% were medical doctors and only one was a microbiologist. Overall, 75% of the HCWs had good knowledge, 84% were highly aware and 84% had good practices regarding AMU, AMR and AMS. Most of the HCWs (90.6%) responded that they had a multidisciplinary AMS team at their hospitals and were implementing the use of the WHO AWaRe classification of antibiotics. Conclusion This study found good knowledge levels, high awareness and good practices regarding AMU, AMR and AMS among HCWs who were involved in the implementation of AMS activities in hospitals in Zambia. Additionally, most hospitals have been conducting AMS training and implementing the use of the WHO AWaRe classification of antibiotics. However, there is still a need to address some identified gaps in AMU and AMR through the strengthening of AMS activities in hospitals.
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Affiliation(s)
- Steward Mudenda
- Department of Pharmacy, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Billy Chabalenge
- Department of Medicines Control, Zambia Medicines Regulatory Authority, Lusaka, Zambia
| | - Victor Daka
- Department of Public Health, Michael Chilufya Sata School of Medicine, Copperbelt University, Ndola, Zambia
| | - Elimas Jere
- Department of Medicines Control, Zambia Medicines Regulatory Authority, Lusaka, Zambia
| | - Isaac Sefah
- Pharmacy Practice Department, School of Pharmacy, University of Health and Allied Sciences, Volta Region, PMB 31, Ho, Ghana
| | - Evelyn Wesangula
- Strengthening Pandemic Preparedness, Eastern, Central, and Southern Africa Health Community, Arusha, Tanzania
| | - Kaunda Yamba
- Antimicrobial Resistance Coordinating Committee, Zambia National Public Health Institute, Lusaka, Zambia
| | | | - Nathan Mugenyi
- Faculty of Medicine, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Zia Ul Mustafa
- Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Gelugor, Penang, 11800, Malaysia
- Department of Pharmacy Services, District Headquarter (DHQ) Hospital, Pakpattan, 57400, Pakistan
| | - Mirfin Mpundu
- Action on Antibiotic Resistance (ReAct) Africa, Lusaka, Zambia
| | - Joseph Chizimu
- Antimicrobial Resistance Coordinating Committee, Zambia National Public Health Institute, Lusaka, Zambia
| | - Roma Chilengi
- Antimicrobial Resistance Coordinating Committee, Zambia National Public Health Institute, Lusaka, Zambia
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26
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Saadeh W, Chaccour S, Rahme D, Lahoud N, Saleh N. The hidden dangers lurking at home: Unveiling the prevalence of leftover antibiotics and its associated factors among Lebanese households. PUBLIC HEALTH IN PRACTICE 2024; 7:100485. [PMID: 38510659 PMCID: PMC10951703 DOI: 10.1016/j.puhip.2024.100485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 02/11/2024] [Accepted: 02/19/2024] [Indexed: 03/22/2024] Open
Abstract
Background Antimicrobial Resistance (AMR) is a major global concern. Irrational use of antibiotics including self-medication (SM) with leftovers without a medical prescription can be a leading cause. This study aimed to investigate the prevalence and related factors of leftover antibiotics (LA) in Lebanese households. Study design A cross-sectional study of the Lebanese population was conducted between March and October 2022. Methods Through random proportional stratified sampling, a total of 494 families participated in this study. Data collection was carried out through phone calls using a comprehensive and reviewed questionnaire. The data was then analyzed using SPSS version 26. Logistic regression was utilized to identify the factors associated with LA, with the presence of LA in households as the dependent variable and other factors such as age, region of residence, and presence of elderly individuals at home as the independent variables. Results Among selected households, 118 households (23.89%) had LA. The most common type of antibiotic found was penicillin (59.84%). Most of the LA were in the form of tablets and capsules (94%) with valid expiration dates (87%). Antibiotics were mainly prescribed by doctors (61%), and the main reason for prescribing was acute respiratory tract infections (47.46%). SM was reported by 42.37% of the families with LA. A family with elderly patients (p = 0.002; OR = 2.23; 95% CI = 1.33-3.73) and those residing in Mount Lebanon (p = 0.019; OR = 2.28; 95% CI = 1.14-4.56) had significantly higher odds of having LA. Conclusion Leftover antibiotics were found in nearly a quarter of the addressed Lebanese families. Therefore, public educational campaigns should be launched to limit injudicious antibiotic use including SM, and to promote proper disposal of any leftovers. It is also crucial to adopt the One Health approach by developing national programs for the safe disposal of LA and implementing regulations to restrict the distribution of antibiotics in pharmacies without a prescription.
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Affiliation(s)
- Wadih Saadeh
- Faculty of Pharmacy, Lebanese University, Hadat, Lebanon
| | | | - Deema Rahme
- Pharmacy Practice Department, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
- INSPECT-LB (Institut National de Santé Publique, d'Épidémiologie Clinique et de Toxicologie-Liban), Beirut, Lebanon
| | - Nathalie Lahoud
- Faculty of Pharmacy, Lebanese International University, Beirut, Lebanon
| | - Nadine Saleh
- Faculty of Public Health, Lebanese University, Fanar, Lebanon
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27
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C S S, Kini V, Singh M, Mukhopadhyay C, Nag P, Sadani K. Disposable electrochemical biosensors for the detection of bacteria in the light of antimicrobial resistance. Biotechnol Bioeng 2024. [PMID: 38822742 DOI: 10.1002/bit.28735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/30/2024] [Accepted: 04/24/2024] [Indexed: 06/03/2024]
Abstract
Persistent and inappropriate use of antibiotics is causing rife antimicrobial resistance (AMR) worldwide. Common bacterial infections are thus becoming increasingly difficult to treat without the use of last resort antibiotics. This has necessitated a situation where it is imperative to confirm the infection to be bacterial, before treating it with antimicrobial speculatively. Conventional methods of bacteria detection are either culture based which take anywhere between 24 and 96 hor require sophisticated molecular analysis equipment with libraries and trained operators. These are difficult propositions for resource limited community healthcare setups of developing or less developed countries. Customized, inexpensive, point-of-care (PoC) biosensors are thus being researched and developed for rapid detection of bacterial pathogens. The development and optimization of disposable sensor substrates is the first and crucial step in development of such PoC systems. The substrates should facilitate easy charge transfer, a high surface to volume ratio, be tailorable by the various bio-conjugation chemistries, preserve the integrity of the biorecognition element, yet be inexpensive. Such sensor substrates thus need to be thoroughly investigated. Further, if such systems were made disposable, they would attain immunity to biofouling. This article discusses a few potential disposable electrochemical sensor substrates deployed for detection of bacteria for environmental and healthcare applications. The technologies have significant potential in helping reduce bacterial infections and checking AMR. This could help save lives of people succumbing to bacterial infections, as well as improve the overall quality of lives of people in low- and middle-income countries.
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Affiliation(s)
- Sreelakshmi C S
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Vrinda Kini
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Maargavi Singh
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Chiranjay Mukhopadhyay
- Department of Microbiology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Pooja Nag
- Department of Mechatronics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Kapil Sadani
- Department of Instrumentation and Control, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Peng J, Wang D, He P, Wei P, Zhang L, Lan W, Zhang X, Guan J, Chen Y, Li W, Zheng Y, Li Y, Chen W, Zhao Z, Jiang L, Zhou L. Seasonal dynamics of antibiotic resistance genes and mobile genetic elements in a subtropical coastal ecosystem: Implications for environmental health risks. ENVIRONMENTAL RESEARCH 2024; 257:119298. [PMID: 38823616 DOI: 10.1016/j.envres.2024.119298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
Antibiotic resistance poses a considerable global public health concern, leading to heightened rates of illness and mortality. However, the impact of seasonal variations and environmental factors on the health risks associated with antibiotic resistance genes (ARGs) and their assembly mechanisms is not fully understood. Based on metagenomic sequencing, this study investigated the antibiotic resistome, mobile genetic elements (MGEs), and microbiomes in a subtropical coastal ecosystem of the Beibu Gulf, China, over autumn and winter, and explored the factors influencing seasonal changes in ARG and MGE abundance and diversity. Results indicated that ARG abundance and diversity were higher in winter than in autumn, with beta-lactam and multidrug resistance genes being the most diverse and abundant, respectively. Similarly, MGE abundance and diversity increased in winter and were strongly correlated with ARGs. In contrast, more pronounced associations between microbial communities, especially archaea, and the antibiotic resistome were observed in autumn than in winter. The co-occurrence network identified multiple interactions between MGEs and various multidrug efflux pumps in winter, suggesting a potential for ARG dissemination. Multivariate correlation analyses and path modeling indicated that environmental factors driving microbial community changes predominantly influenced antibiotic resistome assembly in autumn, while the relative importance of MGEs increased significantly in winter. These findings suggest an elevated health risk associated with antimicrobial resistance in the Beibu Gulf during winter, attributed to the dissemination of ARGs by horizontal gene transfer. The observed seasonal variations highlight the dynamic nature of antibiotic resistance dissemination in coastal ecosystems, emphasizing the need for comprehensive surveillance and management measures to address the growing threat of antimicrobial resistance in vulnerable environments.
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Affiliation(s)
- Jinxia Peng
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Dapeng Wang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Pingping He
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Pinyuan Wei
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Li Zhang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Wenlu Lan
- Beibu Gulf Marine Ecological Environment Field Observation and Research Station of Guangxi, Marine Environmental Monitoring Centre of Guangxi, Beihai, 536000, China
| | - Xingzhi Zhang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Junliang Guan
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Yongxian Chen
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Wei Li
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Yusi Zheng
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Yusen Li
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China
| | - Wenjian Chen
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Zelong Zhao
- Liaoning Key Lab of Germplasm Improvement and Fine Seed Breeding of Marine Aquatic animals, Liaoning Ocean and Fisheries Science Research Institute, Dalian, 116023, China
| | - Linyuan Jiang
- China(Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources, Ministry of Agriculture and Rural Affairs, Guangxi Academy of Fishery Sciences, Nanning, 530021, China.
| | - Lei Zhou
- University Joint Laboratory of Guangdong Province, Hong Kong and Macao Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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Salem ME, Abdelhamid IA, Elwahy AH, Ragheb MA, Alqahtani AS, Zaki ME, Algethami FK, Mahmoud HK. Novel hybrid thiazoles, bis-thiazoles linked to azo-sulfamethoxazole: Synthesis, docking, and antimicrobial activity. Heliyon 2024; 10:e31082. [PMID: 38813143 PMCID: PMC11133767 DOI: 10.1016/j.heliyon.2024.e31082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 05/03/2024] [Accepted: 05/09/2024] [Indexed: 05/31/2024] Open
Abstract
The reaction of sulfamethoxazolehydrazonoyl chloride with thiosemicarbazones, bis-thiosemicarbazones, or 4-amino-3-mercapto-1,2,4-triazole in dioxane in the presence of triethylamine as a basic catalyst at reflux resulted in the regioselective synthesis of thiazoles and bis-thiazoles linked to azo-sulfamethoxazole as novel hybrid molecules. The structures of the new compounds were confirmed using a range of spectra. Each compound's antibacterial properties were evaluated using the agar well-diffusion technique, and most of them demonstrated significant potency. In silico investigations revealed that the described compounds had strong interactions with the binding sites of MurE ligase, tyrosyl-tRNA synthetase, and dihydropteroate synthase, demonstrating inhibitory activity.
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Affiliation(s)
- Mostafa E. Salem
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University(IMSIU), P.O. Box, 90950, Riyadh, 11623, Saudi Arabia
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Ismail A. Abdelhamid
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Ahmed H.M. Elwahy
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Mohamed A. Ragheb
- Department of Chemistry (Biochemistry Division), Faculty of Science, Cairo University, Giza, 12613, Egypt
| | - Arwa sultan Alqahtani
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University(IMSIU), P.O. Box, 90950, Riyadh, 11623, Saudi Arabia
| | - Magdi E.A. Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University(IMSIU), P.O. Box, 90950, Riyadh, 11623, Saudi Arabia
| | - Faisal K. Algethami
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University(IMSIU), P.O. Box, 90950, Riyadh, 11623, Saudi Arabia
| | - Huda Kamel Mahmoud
- Department of Chemistry, Faculty of Science, Cairo University, Giza, 12613, Egypt
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Uc-Cachón AH, Dzul-Beh A, González-Cortázar M, Zamilpa-Álvarez A, Molina-Salinas GM. Investigating the anti-growth, anti-resistance, and anti-virulence activities of Schoepfia schreberi J.F.Gmel. against the superbug Acinetobacter baumannii. Heliyon 2024; 10:e31420. [PMID: 38813144 PMCID: PMC11133943 DOI: 10.1016/j.heliyon.2024.e31420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/31/2024] Open
Abstract
Schoepfia schreberi has been used in Mayan folk medicine to treat diarrhea and cough. This study aimed to determine the anti-growth, anti-resistance, and/or anti-virulence activities of S. schreberi extracts against Acinetobacter baumannii, a pathogen leader that causes healthcare-associated infections with high rates of drug-resistant including carbapenems, the last line of antibiotics known as superbugs, and analyze their composition using HPLC-DAD. Ethyl acetate (SSB-3) and methanol (SSB-4) bark extracts exhibit antimicrobial and biocidal effects against drug-susceptible and drug-resistant A. baumannii. Chemical analysis revealed that SSB-3 and SSB-4 contained of gallic and ellagic acids derivatives. The anti-resistance activity of the extracts revealed that SSB-3 or SSB-4, combined with imipenem, exhibited potent antibiotic reversal activity against A. baumannii by acting as pump efflux modulators. The extracts also displayed activity against surface motility of A. baumannii and its capacity to survive reactive oxygen species. This study suggests that S. schreberi can be considered a source of antibiotics, even adjuvanted compounds, as anti-resistant or anti-virulence agents against A. baumannii, contributing to ethnopharmacological knowledge and reappraisal of Mayan medicinal flora, and supporting the traditional use of the bark of the medicinal plant S. schreberi for the treatment of infectious diseases.
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Affiliation(s)
- Andrés Humberto Uc-Cachón
- Unidad de Investigación Médica Yucatán, Instituto Mexicano del Seguro Social, Mérida, 97150, Yucatán, Mexico
| | - Angel Dzul-Beh
- Unidad de Investigación Médica Yucatán, Instituto Mexicano del Seguro Social, Mérida, 97150, Yucatán, Mexico
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Ciudad de México, 11340, Mexico
| | - Manases González-Cortázar
- Centro de Investigación Biomédica del Sur, Instituto Mexicano del Seguro Social, Xochitepec, 62790, Morelos, Mexico
| | - Alejandro Zamilpa-Álvarez
- Centro de Investigación Biomédica del Sur, Instituto Mexicano del Seguro Social, Xochitepec, 62790, Morelos, Mexico
| | - Gloria María Molina-Salinas
- Unidad de Investigación Médica Yucatán, Instituto Mexicano del Seguro Social, Mérida, 97150, Yucatán, Mexico
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Yoginath Bhambure S, E Costa LIC, Gatty AM, Manjunatha KG, Vittal R, Sannejal AD. Unveiling the traits of antibiotic resistance and virulence in Escherichia coli obtained from poultry waste. Braz J Microbiol 2024:10.1007/s42770-024-01367-1. [PMID: 38809497 DOI: 10.1007/s42770-024-01367-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 04/12/2024] [Indexed: 05/30/2024] Open
Abstract
Antibiotic resistance and virulence factors in avian pathogenic Escherichia coli (APEC) have become significant concerns, contributing to adverse environmental effects. The extensive use of antibiotics in poultry farming has resulted in the emergence of antibiotic-resistant APEC strains. This study prioritizes the molecular screening of APEC to uncover their antibiotic resistance and virulence attributes, with specific attention to their environmental impact. To address the imperative of understanding APEC pathogenesis, our study analyzed 50 poultry waste samples including 10 poultry litter, 15 fecal matter, 15 wastewater, and 10 anatomical waste samples. For the presence of virulence genes, 35 Escherichia coli isolates were subjected to molecular characterization. Amongst these, 27 were APEC strains demonstrating the presence of at least four virulence genes each. Notably, virulence genes such as fimH, ompA, ybjX, waaL, cvaC, hlyF, iss, ompT, and iroN were observed among all the E. coli isolates. Furthermore, eleven of the APEC strains exhibited resistance to tetracycline, ampicillin, sulphonamides, and fluoroquinolones.These findings highlight the role of APEC as a potential source of environmental pollution serving as a reservoir for virulence and resistance genes. Understanding the dynamics of antibiotic resistance and virulence in APEC is essential due to its potential threat to broiler chickens and the broader population through the food chain, intensifying concerns related to environmental pollution. Recognizing the ecological impact of APEC is essential for developing effective strategies to mitigate environmental pollution and safeguard the health of ecosystems and human populations.
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Affiliation(s)
- Sahil Yoginath Bhambure
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Paneer campus, Deralakatte, Mangalore, 575018, India
| | - Lakiesha Inacia Coelho E Costa
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Paneer campus, Deralakatte, Mangalore, 575018, India
| | - Ashwitha M Gatty
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Paneer campus, Deralakatte, Mangalore, 575018, India
| | - Kavitha Guladahalli Manjunatha
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Paneer campus, Deralakatte, Mangalore, 575018, India
| | - Rajeshwari Vittal
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Paneer campus, Deralakatte, Mangalore, 575018, India
| | - Akhila Dharnappa Sannejal
- Nitte (Deemed to be University), Nitte University Centre for Science Education and Research (NUCSER), Paneer campus, Deralakatte, Mangalore, 575018, India.
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Greene HC, Makovi K, Abdul-Mumin R, Bansal A, Frimpong JA. Challenges in the distribution of antimicrobial medications in community dispensaries in Accra, Ghana. PLoS One 2024; 19:e0281699. [PMID: 38809832 PMCID: PMC11135707 DOI: 10.1371/journal.pone.0281699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 05/02/2024] [Indexed: 05/31/2024] Open
Abstract
INTRODUCTION The dispensation of medicines in some low- and middle-income countries is often carried out by private vendors operating under constrained conditions. The aim of this study was to understand the challenges reported by employees of dispensaries, specifically, chemical and herbal shops and pharmacies in Accra, Ghana. Our objectives were twofold: (1) to assess challenges faced by medicine vendors related to dispensing antimicrobials (antibiotic and antimalarial medications), and (2) to identify opportunities for improving their stewardship of antimicrobials. METHODS Data were collected in 79 dispensaries throughout Accra, in 2021, using a survey questionnaire. We used open-ended questions, grounded on an adapted socioecological model of public health, to analyze these data and determine challenges faced by respondents. RESULTS We identified multiple, interlocking challenges faced by medicine vendors. Many of these relate to challenges of antimicrobial stewardship (following evidence-based practices when dispensing medicines). Overall, medicine vendors frequently reported challenges at the Customer and Community levels. These included strained interactions with customers and the prohibitive costs of medications. The consequences of these challenges reverberated and manifested through all levels of the socioecological model of public health (Entity, Customer, Community, Global). DISCUSSION The safe and effective distribution of medications was truncated by strained interactions, often related to the cost of medicines and gaps in knowledge. While addressing these challenges requires multifaceted approaches, we identified several areas that, if intervened upon, could unlock the great potential of antimicrobal stewardship. The effective and efficient implementation of key interventions could facilitate efforts spearheaded by medicine vendors and leverage the benefits of their role as health educators and service providers. CONCLUSION Addressing barriers faced by medicine vendors would provide an opportunity to significantly improve the provision of medications, and ultimately population health. Such efforts will likely expand access to populations who may otherwise be unable to access medications and treatment in formal institutions of care such as hospitals. Our findings also highlight the broad range of care provided by shopkeepers and vendors at dispensaries. These findings suggest that the meaningful engagement of dispensaries as valued conduits of community health is a promising pathway for interventions aiming to improve antimicrobial stewardship.
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Affiliation(s)
- Hannah Camille Greene
- Social Science Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Kinga Makovi
- Social Science Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - Rafiatu Abdul-Mumin
- Department of Biochemistry and Forensic Sciences, School of Chemical and Biochemical Sciences, C.K Tedam University of Technology & Applied Sciences, Navrongo, Ghana
| | - Akhil Bansal
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Jemima A. Frimpong
- Social Science Division, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
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Wang WX, Wu JZ, Zhang BL, Yu JY, Han LM, Lu XL, Li H, Fu SY, Ren YY, Dong H, Xu Y, Wang GT, Gao JH, Wang C, Chen XZ, Liu DX, Huang Y, Yu JH, Wang SW, Yang YF, Chen W. Phage therapy combats pandrug-resistant Acinetobacter baumannii infection safely and efficiently. Int J Antimicrob Agents 2024:107220. [PMID: 38810939 DOI: 10.1016/j.ijantimicag.2024.107220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 04/20/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
Phage therapy offers a promising approach to combat the growing threat of antimicrobial resistance. Yet, key questions remain regarding dosage, administration routes, combination therapy, and the causes of therapeutic failure. In this study, we focused on a novel lytic phage, ФAb4B, which specifically targeted the A. baumannii strains with KL160 CPS, including the pan-drug resistant A. baumannii YQ4. ФAb4B exhibited the ability to effectively inhibit biofilm formation and eradicate mature biofilms independently of dosage. Additionally, it demonstrated a wide spectrum of antibiotic-phage synergy and did not show any cytotoxic or hemolytic effects. Continuous phage injections, both intraperitoneally and intravenously over 7 days, showed no acute toxicity in vivo. Importantly, phage therapy significantly improved neutrophil counts, outperforming ciprofloxacin (CIP). However, excessive phage injections suppressed neutrophil levels. The combinatorial treatment of phage-CIP rescued 91% of the mice, a superior outcome compared to phage alone (67%). The efficacy of the combinatorial treatment was independent of phage dosage. Notably, prophylactic administration of the combinatorial regimen provided no protection, but even when combined with a delayed therapeutic regimen, it saved all the mice. Bacterial resistance to the phage was not a contributing factor to treatment failure. Our preclinical study systematically describes the lytic phage's effectiveness in both in vitro and in vivo settings, filling in crucial details about phage treatment against bacteriemia caused by A. baumannii, which will provide a robust foundation for the future of phage therapy.
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Affiliation(s)
- Wei-Xiao Wang
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Jia-Zhen Wu
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China; Department of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Bai-Ling Zhang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Jiao-Yang Yu
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China; Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Li-Mei Han
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Xiao-Liang Lu
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Hui Li
- Department of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Shi-Yong Fu
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Yun-Yao Ren
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Hui Dong
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Yi Xu
- Department of Geriatric Medicine, Jiangxi Provincial People's Hospital, No. 92, Aiguo Road, Donghu District, Nanchang, 330006, China
| | - Gong-Ting Wang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Jing-Han Gao
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Chun Wang
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Xiu-Zhen Chen
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Du-Xian Liu
- Department of pathology, the Second Hospital of Nanjing, Affiliated Hospital to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Ying Huang
- Department of Infection Control and Management, the Second Hospital of Nanjing, Affiliated Hospital to Nanjing University of Chinese Medicine, Nanjing 210003, China
| | - Jin-Hong Yu
- Department of Clinical Laboratory, the Second Hospital of Nanjing, Affiliated Hospital to Nanjing University of Chinese Medicine, Nanjing, 210003, China
| | - Shi-Wei Wang
- Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Yong-Feng Yang
- The Clinical Infectious Disease Center of Nanjing, Nanjing 210003, China.
| | - Wei Chen
- Clinical Research Center, the Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing 210003, China.
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van Dorst PWM, van der Pol S, Olliaro P, Dittrich S, Nkeramahame J, Postma MJ, Boersma C, van Asselt ADI. Cost-Effectiveness of Test-and-Treat Strategies to Reduce the Antibiotic Prescription Rate for Acute Febrile Illness in Primary Healthcare Clinics in Africa. APPLIED HEALTH ECONOMICS AND HEALTH POLICY 2024:10.1007/s40258-024-00889-x. [PMID: 38796659 DOI: 10.1007/s40258-024-00889-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/05/2024] [Indexed: 05/28/2024]
Abstract
BACKGROUND Inappropriate antibiotic use increases selective pressure, contributing to antimicrobial resistance. Point-of-care rapid diagnostic tests (RDTs) would be instrumental to better target antibiotic prescriptions, but widespread implementation of diagnostics for improved management of febrile illnesses is limited. OBJECTIVE Our study aims to contribute to evidence-based guidance to inform policymakers on investment decisions regarding interventions that foster more appropriate antibiotic prescriptions, as well as to address the evidence gap on the potential clinical and economic impact of RDTs on antibiotic prescription. METHODS A country-based cost-effectiveness model was developed for Burkina Faso, Ghana and Uganda. The decision tree model simulated seven test strategies for patients with febrile illness to assess the effect of different RDT combinations on antibiotic prescription rate (APR), costs and clinical outcomes. The incremental cost-effectiveness ratio (ICER) was expressed as the incremental cost per percentage point (ppt) reduction in APR. RESULTS For Burkina Faso and Uganda, testing all patients with a malaria RDT was dominant compared to standard-of-care (SoC) (which included malaria testing). Expanding the test panel with a C-reactive protein (CRP) test resulted in an ICER of $ 0.03 and $ 0.08 per ppt reduction in APR for Burkina Faso and Uganda, respectively. For Ghana, the pairwise comparison with SoC-including malaria and complete blood count testing-indicates that both testing with malaria RDT only and malaria RDT + CRP are dominant. CONCLUSION The use of RDTs for patients with febrile illness could effectively reduce APR at minimal additional costs, provided diagnostic algorithms are adhered to. Complementing SoC with CRP testing may increase clinicians' confidence in prescribing decisions and is a favourable strategy.
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Affiliation(s)
- Pim W M van Dorst
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.
- Health-Ecore Ltd., Zeist, The Netherlands.
- Unit of Global Health, Department of Health Sciences, University Medical Center Groningen, PO Box 30.001, 9700 RB, Groningen, The Netherlands.
| | - Simon van der Pol
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Health-Ecore Ltd., Zeist, The Netherlands
| | - Piero Olliaro
- International Severe Acute Respiratory and Emerging Infection Consortium, Pandemic Sciences Institute, University of Oxford, Oxford, UK
| | - Sabine Dittrich
- FIND, Geneva, Switzerland
- Center for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Deggendorf Institute of Technology, European Campus Rottal Inn, Pfarrkirchen, Germany
| | | | - Maarten J Postma
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Health-Ecore Ltd., Zeist, The Netherlands
- Department of Economics, Econometrics and Finance, University of Groningen, Groningen, The Netherlands
- Department of Pharmacology and Therapy, Universitas Airlangga, Surabaya, Indonesia
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung, Indonesia
| | - Cornelis Boersma
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Health-Ecore Ltd., Zeist, The Netherlands
- Department of Management Sciences, Open University, Heerlen, The Netherlands
| | - Antoinette D I van Asselt
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Li Z, Liu Z, Guo Y, Gao S, Tang Y, Li T, Xuan H. Propolis Alleviates Acute Lung Injury Induced by Heat-Inactivated Methicillin-Resistant Staphylococcus aureus via Regulating Inflammatory Mediators, Gut Microbiota and Serum Metabolites. Nutrients 2024; 16:1598. [PMID: 38892531 PMCID: PMC11175110 DOI: 10.3390/nu16111598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/19/2024] [Accepted: 05/21/2024] [Indexed: 06/21/2024] Open
Abstract
Propolis has potential anti-inflammatory properties, but little is known about its efficacy against inflammatory reactions caused by drug-resistant bacteria, and the difference in efficacy between propolis and tree gum is also unclear. Here, an in vivo study was performed to study the effects of ethanol extract from poplar propolis (EEP) and poplar tree gum (EEG) against heat-inactivated methicillin-resistant Staphylococcus aureus (MRSA)-induced acute lung injury (ALI) in mice. Pre-treatment with EEP and EEG (100 mg/kg, p.o.) resulted in significant protective effects on ALI in mice, and EEP exerted stronger activity to alleviate lung tissue lesions and ALI scores compared with that of EEG. Furthermore, EEP significantly suppressed the levels of pro-inflammatory mediators in the lung, including TNF-α, IL-1β, IL-6, and IFN-γ. Gut microbiota analysis revealed that both EEP and EEG could modulate the composition of the gut microbiota, enhance the abundance of beneficial microbiota and reduce the harmful ones, and partly restore the levels of short-chain fatty acids. EEP could modulate more serum metabolites and showed a more robust correlation between serum metabolites and gut microbiota. Overall, these results support the anti-inflammatory effects of propolis in the treatment of ALI, and the necessity of the quality control of propolis.
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Affiliation(s)
| | | | | | | | | | | | - Hongzhuan Xuan
- School of Life Science, Liaocheng University, Liaocheng 252059, China; (Z.L.); (Z.L.); (Y.G.); (S.G.); (Y.T.); (T.L.)
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Sumon SA, Sarker S, Chowdhury ABMA, Abdullah SAHM, Shahjahan M, Sharmin S, Harun MGD. Antibiotic use in tertiary care hospitals in Bangladesh: Revealing the extent through a point prevalence survey. Am J Infect Control 2024:S0196-6553(24)00505-4. [PMID: 38795902 DOI: 10.1016/j.ajic.2024.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/18/2024] [Accepted: 05/19/2024] [Indexed: 05/28/2024]
Abstract
BACKGROUND Prevalent use of antibiotics in hospitals results in antimicrobial resistance (AMR), rising mortality, and substantial financial burden. This study assessed the current pattern of antibiotic use among inpatients in tertiary hospitals in Bangladesh. METHODS Between August and November 2022, we conducted a point prevalence survey in 4 tertiary hospitals in Dhaka, Bangladesh. The World Health Organization-directed point prevalence survey methodology and tools were followed for the data collection. Descriptive and multivariate statistics were performed using Stata version 15. RESULTS Of 1,063 hospitalized patients, antibiotics were prescribed to 73.5% (781/1063, 95% confidence interval: 70.8-76.1) of patients. A total of 1,164 antibiotics were prescribed, and 49.1% of patients consumed multiple antibiotics. Only 31.4% of patients were prescribed antibiotics based on microbiology results. The reasons for antibiotic prescribing were mentioned only in 19.3% of patients. Infants (adjusted odds ratio: 8.52, P-value: <.001) and neonates (adjusted odds ratio: 4.32, P-value: <.001) were more likely to consume antibiotics compared to adults. Cephalosporins accounted for the majority (54.0%) of antibiotics used in hospitals. None of the hospitals had any antibiotic use guidelines. CONCLUSIONS Consumption of Watch group antibiotics empirically among all age groups demonstrates irrational antibiotic usage in Bangladeshi hospitals. Implementation of a tailored stewardship program, antibiotic use guidelines, and prescriber-patient awareness could improve the rational use of antibiotics.
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Affiliation(s)
- Shariful Amin Sumon
- Department of Public Health, Daffodil International University, Dhaka, Bangladesh.
| | - Supta Sarker
- Health System and Population Studies Division, International Centre for Diarrheal Disease Research, Bangladesh (icddr,b), Dhaka, Bangladesh
| | | | | | - Md Shahjahan
- Department of Public Health, Daffodil International University, Dhaka, Bangladesh
| | - Sabrina Sharmin
- Department of Public Health, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
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Sudewi S, Sai Sashank PV, Kamaraj R, Zulfajri M, Huang GG. Understanding Antibiotic Detection with Fluorescence Quantum Dots: A Review. J Fluoresc 2024:10.1007/s10895-024-03743-4. [PMID: 38771407 DOI: 10.1007/s10895-024-03743-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024]
Abstract
The utilization of fluorescent quantum dots (FL QDs) has gained significant traction in the realm of antibiotic detection, owing to their exceptional FL properties and versatility. Various types of QDs have been tailored to exhibit superior FL characteristics, employing diverse capping agents such as metals, surfactants, polymers, and biomass to protect and stabilize their surfaces. In their evolution, FL QDs have demonstrated both "turn-off" and "turn-on" mechanisms in response to the presence of analytes, offering promising avenues for biosensing applications. This review article provides a comprehensive overview of the recent advancements in antibiotic detection utilizing FL QDs as biosensors. It encompasses an extensive examination of different types of FL QDs, including carbon, metal, and core-shell QDs, deployed for the detection of antibiotics. Furthermore, the synthesis methods employed for the fabrication of various FL QDs are elucidated, shedding light on the diverse approaches adopted in their preparation. Moreover, this review delves into the intricate sensing mechanisms underlying FL QDs-based antibiotic detection. Various mechanisms, such as photoinduced electron transfer, electron transfer, charge transfer, Forster resonance energy transfer, static quenching, dynamic quenching, inner filter effect, hydrogen bonding, and aggregation-induced emission, are discussed in detail. These mechanisms provide a robust scientific rationale for the detection of antibiotics using FL QDs, showcasing their potential for sensitive and selective sensing applications. Finally, the review addresses current challenges and offers perspectives on the future improvement of FL QDs in sensing applications. Insights into overcoming existing limitations and harnessing emerging technologies are provided, charting a course for the continued advancement of FL QDs-based biosensing platforms in the field of antibiotic detection.
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Affiliation(s)
- Sri Sudewi
- Department of Pharmacy, Faculty of Mathematics and Natural Science, Universitas Sam Ratulangi, Manado, 95115, Indonesia
| | - Penki Venkata Sai Sashank
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Rajiv Kamaraj
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Muhammad Zulfajri
- Department of Chemistry Education, Universitas Serambi Mekkah, Banda Aceh, Aceh, 23245, Indonesia.
| | - Genin Gary Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 80708, Taiwan.
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan.
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Rehman S, Albhishiri G, Alsalem Z, AlJameel SS, Al-Qaaneh A, Shah AH, Akhtar S, Hameed S, Jermy BR. Bionanocomposites comprising mesoporous metal organic framework (ZIF-8) phytofabricated with Allium sativum as alternative nanomaterials to combat antimicrobial drug resistance. Bioprocess Biosyst Eng 2024:10.1007/s00449-024-03027-y. [PMID: 38767741 DOI: 10.1007/s00449-024-03027-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/30/2024] [Indexed: 05/22/2024]
Abstract
Green nanotechnology is one of the most expanding fields that provides numerous novel nanoparticle drug formulations with enhanced bioactivity performance. This study aims to synthesize mesoporous metal organic framework (ZIF-8) phytofabricated with the herb Allium sativum (As) as an indicator system for its antibacterial and antifungal impact. The successful synthesis of ZIF-8 as nanocomposite was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning coupled with energy-dispersive X-ray spectroscopy and transmission electron microscopy (SEM-EDX and TEM) that showed the textural retainment of ZIF-8 on composite formation with A. sativum. The nanocomposite, A. sativum extract, and ZIF-8 were subjected to antimicrobial assays against Shigella flexneri, Candida albicans, and Candida parapsilosis. The comparative results indicated the potential action of nanocomposite against the bacteria and both the Candida sps; however, the antifungal action against the Candida sps was more effective than the bacterium S. flexneri. The findings suggest that plants, being an important component of ecosystems, could be further explored for the novel drug discovery using green nanotechnology to enhance their impact on the drug-resistant pathogens.
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Affiliation(s)
- Suriya Rehman
- Department of Epidemic Diseases Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia.
| | - Ghadi Albhishiri
- Department of Epidemic Diseases Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
- Mawhiba Enrichment Program 2022, Institute for Research and Medical Consultation (IRMC), Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Zainab Alsalem
- Department of Epidemic Diseases Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
| | - Suhailah S AlJameel
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
| | - Ayman Al-Qaaneh
- Department of Allied Health Sciences, Al-Balqa Applied University (BAU), Al-Salt, 19117, Jordan
| | - Aarif Hussain Shah
- Department of Chemical Engineering, National Institute of Technology, Srinagar, India
- Narcotics Division, Forensic Science Laboratory, J&K, 190018, India
| | - Sultan Akhtar
- Department of Biophysics, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
| | - Saif Hameed
- Amity Institute of Biotechnology, Amity University Haryana, Manesar, Gurugram-122413, India
| | - B Rabindran Jermy
- Department of Nanotechnology Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia
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Selvakumar S, Singh S, Swaminathan P. Detection and evaluation of susceptibility to antibiotics in non-hydrogen sulfide-producing antibiotic-resistant soil microbe: Pseudomonas guariconensis. Int Microbiol 2024:10.1007/s10123-024-00537-3. [PMID: 38767682 DOI: 10.1007/s10123-024-00537-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 05/07/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024]
Abstract
Antimicrobial resistance in bacteria is a global threat that can make antibacterial treatments ineffective. One well-known method of antibiotic resistance and a common defensive mechanism in many harmful bacteria is the synthesis of endogenous hydrogen sulfide (H2S) in bacteria. In this study, soil bacteria were screened using the lead acetate agar test and the triple sugar iron test to determine that they were non-endogenous H2S producers. This was further validated by full genome analysis of the identified organism against the gene sequences of H2S-producing genes. Antibacterial resistance of the bacteria was phenotypically analyzed using the Kirby-Bauer disk diffusion method. Then, the effect of exogenous H2S on the antibiotic-resistant bacteria was checked in sodium sulfide, leading to antibiotic re-sensitization.
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Affiliation(s)
- Sahithya Selvakumar
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, 603203, Kattankulathur, India
| | - Shubhi Singh
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, 603203, Kattankulathur, India
| | - Priya Swaminathan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, 603203, Kattankulathur, India.
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Fu S, Song W, Han X, Chen L, Shen L. Veratryl Alcohol Attenuates the Virulence and Pathogenicity of Pseudomonas aeruginosa Mainly via Targeting las Quorum-Sensing System. Microorganisms 2024; 12:985. [PMID: 38792814 PMCID: PMC11123940 DOI: 10.3390/microorganisms12050985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen that usually causes chronic infections and even death in patients. The treatment of P. aeruginosa infection has become more challenging due to the prevalence of antibiotic resistance and the slow pace of new antibiotic development. Therefore, it is essential to explore non-antibiotic methods. A new strategy involves screening for drugs that target the quorum-sensing (QS) system. The QS system regulates the infection and drug resistance in P. aeruginosa. In this study, veratryl alcohol (VA) was found as an effective QS inhibitor (QSI). It effectively suppressed the expression of QS-related genes and the subsequent production of virulence factors under the control of QS including elastase, protease, pyocyanin and rhamnolipid at sub-inhibitory concentrations. In addition, motility activity and biofilm formation, which were correlated with the infection of P. aeruginosa, were also suppressed by VA. In vivo experiments demonstrated that VA could weaken the pathogenicity of P. aeruginosa in Chinese cabbage, Drosophila melanogaster, and Caenorhabditis elegans infection models. Molecular docking, combined with QS quintuple mutant infection analysis, identified that the mechanism of VA could target the LasR protein of the las system mainly. Moreover, VA increased the susceptibility of P. aeruginosa to conventional antibiotics of tobramycin, kanamycin and gentamicin. The results firstly demonstrate that VA is a promising QSI to treat infections caused by P. aeruginosa.
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Affiliation(s)
| | | | | | | | - Lixin Shen
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi’an 710069, China; (S.F.); (W.S.); (X.H.); (L.C.)
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Andima M, Boese A, Paul P, Koch M, Loretz B, Lehr CM. Targeting Intracellular Bacteria with Dual Drug-loaded Lactoferrin Nanoparticles. ACS Infect Dis 2024; 10:1696-1710. [PMID: 38577780 PMCID: PMC11091908 DOI: 10.1021/acsinfecdis.4c00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
Treatment of microbial infections is becoming daunting because of widespread antimicrobial resistance. The treatment challenge is further exacerbated by the fact that certain infectious bacteria invade and localize within host cells, protecting the bacteria from antimicrobial treatments and the host's immune response. To survive in the intracellular niche, such bacteria deploy surface receptors similar to host cell receptors to sequester iron, an essential nutrient for their virulence, from host iron-binding proteins, in particular lactoferrin and transferrin. In this context, we aimed to target lactoferrin receptors expressed by macrophages and bacteria; as such, we prepared and characterized lactoferrin nanoparticles (Lf-NPs) loaded with a dual drug combination of antimicrobial natural alkaloids, berberine or sanguinarine, with vancomycin or imipenem. We observed increased uptake of drug-loaded Lf-NPs by differentiated THP-1 cells with up to 90% proportion of fluorescent cells, which decreased to about 60% in the presence of free lactoferrin, demonstrating the targeting ability of Lf-NPs. The encapsulated antibiotic drug cocktail efficiently cleared intracellular Staphylococcus aureus (Newman strain) compared to the free drug combinations. However, the encapsulated drugs and the free drugs alike exhibited a bacteriostatic effect against the hard-to-treat Mycobacterium abscessus (smooth variant). In conclusion, the results of this study demonstrate the potential of lactoferrin nanoparticles for the targeted delivery of antibiotic drug cocktails for the treatment of intracellular bacteria.
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Affiliation(s)
- Moses Andima
- Department
of Drug Delivery (DDEL), Helmholtz Institute
for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for
Infection Research, Campus E8.1, Saarbrücken 66123, Germany
- Department
of Chemistry, Faculty of Science and Education, Busitema University, P.O Box 236, Tororo 21435, Uganda
| | - Annette Boese
- Department
of Drug Delivery (DDEL), Helmholtz Institute
for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for
Infection Research, Campus E8.1, Saarbrücken 66123, Germany
| | - Pascal Paul
- Department
of Drug Delivery (DDEL), Helmholtz Institute
for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for
Infection Research, Campus E8.1, Saarbrücken 66123, Germany
| | - Marcus Koch
- INM-Leibniz
Institute for New Materials, Campus D2 2, Saarbrücken 66123, Germany
| | - Brigitta Loretz
- Department
of Drug Delivery (DDEL), Helmholtz Institute
for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for
Infection Research, Campus E8.1, Saarbrücken 66123, Germany
| | - Claus-Micheal Lehr
- Department
of Drug Delivery (DDEL), Helmholtz Institute
for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for
Infection Research, Campus E8.1, Saarbrücken 66123, Germany
- Department
of Pharmacy, Saarland University, Saarbrücken 66123, Germany
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Kallu SA, Kebede N, Kassa T, Wubaye AM, Kainga H, Mekonnen H, Simuunza MC. Knowledge, Attitudes, Practices, and Risk Perception of Antimicrobial Use and Antimicrobial Resistance Among Dairy Farm Owners/Workers in Addis Ababa, Ethiopia. Infect Drug Resist 2024; 17:1839-1861. [PMID: 38745680 PMCID: PMC11092976 DOI: 10.2147/idr.s453570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 05/01/2024] [Indexed: 05/16/2024] Open
Abstract
Introduction Antimicrobial resistance (AMR) is one of the most significant global health threats to the public, animals, and the ecosystem. Inappropriate use of antibiotics in food animals is considered a major driver of AMR in humans. This study was conducted to assess the knowledge, attitude, practices, and risk perception (KAPP) of dairy farm owners/workers in Addis Ababa about antibiotic use and resistance. Methods A face-to-face interview using a structured questionnaire was conducted with 281 respondents in four selected subcities of Addis Ababa. The responses provided by each participant were recoded into a binary scale based on the mean score of each domain. Pearson chi-square was used to check the association between the KAPP and sociodemographic characteristics of the respondents and logistic regression analysis was done to explore the factors associated with KAPP. Results Overall, more than half of the surveyed dairy farm owners/workers had good knowledge (57.7%) and appropriate practice (53.0%), while less than half of the respondents showed desirable attitudes (47.7%) and positive risk perceptions (42.7%). The findings revealed a strong association between the respondents' KAPP and education and between knowledge and risk perception and farming experience. Conclusion This study found that continuous education of dairy farm owners/workers regarding antimicrobial usage and antimicrobial resistance in dairy farms will increase their awareness and perception of risk as well as motivate them to adopt desirable attitudes and appropriate practices, and consequently limit inappropriate use of antimicrobials leading to mitigating emergence of AMR.
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Affiliation(s)
- Simegnew Adugna Kallu
- College of Veterinary Medicine, Haramaya University, Dire Dawa, Ethiopia
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Nigatu Kebede
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Tesfu Kassa
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | | | - Henson Kainga
- Department of Veterinary Epidemiology and Public Health, Faculty of Veterinary Medicine, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi
| | - Habtamu Mekonnen
- Addis Ababa City Administration, Farmers and Urban Agriculture Development Commission, Addis Ababa, Ethiopia
| | - Martin C Simuunza
- Department of Disease Control, School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
- Africa Centre of Excellence for Infectious Diseases of Humans and Animals, University of Zambia, Lusaka, Zambia
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Rios-Soto L, Hernández-Campos A, Tovar-Escobar D, Castillo R, Sierra-Campos E, Valdez-Solana M, Téllez-Valencia A, Avitia-Domínguez C. Inhibition of Shikimate Kinase from Methicillin-Resistant Staphylococcus aureus by Benzimidazole Derivatives. Kinetic, Computational, Toxicological, and Biological Activity Studies. Int J Mol Sci 2024; 25:5077. [PMID: 38791117 PMCID: PMC11121535 DOI: 10.3390/ijms25105077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Antimicrobial resistance (AMR) is one of the biggest threats in modern times. It was estimated that in 2019, 1.27 million deaths occurred around the globe due to AMR. Methicillin-resistant Staphylococcus aureus (MRSA) strains, a pathogen considered of high priority by the World Health Organization, have proven to be resistant to most of the actual antimicrobial treatments. Therefore, new treatments are required to be able to manage this increasing threat. Under this perspective, an important metabolic pathway for MRSA survival, and absent in mammals, is the shikimate pathway, which is involved in the biosynthesis of chorismate, an intermediate for the synthesis of aromatic amino acids, folates, and ubiquinone. Therefore, the enzymes of this route have been considered good targets to design novel antibiotics. The fifth step of the route is performed by shikimate kinase (SK). In this study, an in-house chemical library of 170 benzimidazole derivatives was screened against MRSA shikimate kinase (SaSK). This effort led to the identification of the first SaSK inhibitors, and the two inhibitors with the greatest inhibition activity (C1 and C2) were characterized. Kinetic studies showed that both compounds were competitive inhibitors with respect to ATP and non-competitive for shikimate. Structural analysis through molecular docking and molecular dynamics simulations indicated that both inhibitors interacted with ARG113, an important residue involved in ATP binding, and formed stable complexes during the simulation period. Biological activity evaluation showed that both compounds were able to inhibit the growth of a MRSA strain. Mitochondrial assays showed that both compounds modify the activity of electron transport chain complexes. Finally, ADMETox predictions suggested that, in general, C1 and C2 can be considered as potential drug candidates. Therefore, the benzimidazole derivatives reported here are the first SaSK inhibitors, representing a promising scaffold and a guide to design new drugs against MRSA.
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Affiliation(s)
- Lluvia Rios-Soto
- Facultad de Medicina y Nutrición, Universidad Juárez del Estado de Durango, Av. Universidad y Fanny, Anitúa S/N, Durango 34000, Mexico;
| | - Alicia Hernández-Campos
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, México City 04510, Mexico; (A.H.-C.); (D.T.-E.); (R.C.)
| | - David Tovar-Escobar
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, México City 04510, Mexico; (A.H.-C.); (D.T.-E.); (R.C.)
| | - Rafael Castillo
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, México City 04510, Mexico; (A.H.-C.); (D.T.-E.); (R.C.)
| | - Erick Sierra-Campos
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Av. Artículo 123 S/N Fracc. Filadelfia, Gómez Palacio 35010, Mexico; (E.S.-C.); (M.V.-S.)
| | - Mónica Valdez-Solana
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango, Av. Artículo 123 S/N Fracc. Filadelfia, Gómez Palacio 35010, Mexico; (E.S.-C.); (M.V.-S.)
| | - Alfredo Téllez-Valencia
- Facultad de Medicina y Nutrición, Universidad Juárez del Estado de Durango, Av. Universidad y Fanny, Anitúa S/N, Durango 34000, Mexico;
| | - Claudia Avitia-Domínguez
- Facultad de Medicina y Nutrición, Universidad Juárez del Estado de Durango, Av. Universidad y Fanny, Anitúa S/N, Durango 34000, Mexico;
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Udas S, Chand OB, Shrestha B, Pathak S, Syantang S, Dahal A, Karkey A, Giri A, Shilpakar O, Basnyat B, Salami O, Nkeramahame J, Olliaro P, Horgan P. The facilitators of and barriers to antimicrobial use and misuse in Lalitpur, Nepal: a qualitative study. BMC Public Health 2024; 24:1219. [PMID: 38698360 PMCID: PMC11067172 DOI: 10.1186/s12889-024-18690-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 04/23/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) is a pressing global health concern driven by inappropriate antibiotic use, which is in turn influenced by various social, systemic, and individual factors. This study, nested within FIND's AMR Diagnostic Use Accelerator clinical trial in Nepal, aimed to (i) explore the perspectives of patients, caregivers, and healthcare workers (HCWs) on antibiotic prescription adherence and (ii) assess the impact of a training and communication (T&C) intervention on adherence to antibiotic prescriptions. METHODS Using qualitative, semi-structured interviews, pre-intervention and Day 7 follow-up components, and the Behaviour Change Wheel process, we investigated the facilitators of and barriers to the use and misuse of antibiotic prescriptions. RESULTS Results of the study revealed that adherence to antibiotic prescriptions is influenced by a complex interplay of factors, including knowledge and understanding, forgetfulness, effective communication, expectations, beliefs and habits, attitudes and behaviours, convenience of purchasing, trust in medical effectiveness, and issues of child preferences. The T&C package was also shown to play a role in addressing specific barriers to treatment adherence. CONCLUSIONS Overall, the results of this study provide a nuanced understanding of the challenges associated with antibiotic use and suggest that tailored interventions, informed by behaviour frameworks, can enhance prescription adherence, may be applicable in diverse settings and can contribute to the global effort to mitigate the rising threat of AMR.
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Affiliation(s)
- Summita Udas
- Oxford University Clinical Research Unit Nepal, Patan, Nepal.
| | | | - Babin Shrestha
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | - Sushmita Pathak
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | - Sarita Syantang
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | - Ashata Dahal
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | | | - Abhishek Giri
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | - Olita Shilpakar
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | - Buddha Basnyat
- Oxford University Clinical Research Unit Nepal, Patan, Nepal
| | | | | | - Piero Olliaro
- International Severe Acute Respiratory and Emerging Infection Consortium, Pandemic Sciences Institute, University of Oxford, Oxford, UK
| | - Philip Horgan
- FIND, Geneva, Switzerland
- Evidence & Impact Oxford, Oxford, UK
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Yang S, Cao J, Zhao C, Zhang X, Li C, Wang S, Yang X, Qiu Z, Li C, Wang J, Xue B, Shen Z. Cylindrospermopsin enhances the conjugative transfer of plasmid-mediated multi-antibiotic resistance genes through glutathione biosynthesis inhibition. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 276:116288. [PMID: 38581909 DOI: 10.1016/j.ecoenv.2024.116288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/29/2024] [Accepted: 03/31/2024] [Indexed: 04/08/2024]
Abstract
Cylindrospermopsin (CYN), a cyanobacterial toxin, has been detected in the global water environment. However, information concerning the potential environmental risk of CYN is limited, since the majority of previous studies have mainly focused on the adverse health effects of CYN through contaminated drinking water. The present study reported that CYN at environmentally relevant levels (0.1-100 μg/L) can significantly enhance the conjugative transfer of RP4 plasmid in Escherichia coli genera, wherein application of 10 μg/L of CYN led to maximum fold change of ∼6.5- fold at 16 h of exposure. Meanwhile, evaluation of underlying mechanisms revealed that environmental concentration of CYN exposure could increase oxidative stress in the bacterial cells, resulting in ROS overproduction. In turn, this led to an upregulation of antioxidant enzyme-related genes to avoid ROS attack. Further, inhibition of the synthesis of glutathione (GSH) was also detected, which led to the rapid depletion of GSH in cells and thus triggered the SOS response and promoted the conjugative transfer process. Increase in cell membrane permeability, upregulation of expression of genes related to pilus generation, ATP synthesis, and RP4 gene expression were also observed. These results highlight the potential impact on the spread of antimicrobial resistance in water environments.
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Affiliation(s)
- Shuran Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Jinrui Cao
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Chen Zhao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Xi Zhang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Chenyu Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Shang Wang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Xiaobo Yang
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Zhigang Qiu
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Chao Li
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Jingfeng Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China; Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China
| | - Bin Xue
- Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Tianjin 300050, China.
| | - Zhiqiang Shen
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.
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Velpandian T, Laxmi M, Das U, Suresh G, Kapil A, Halder N. Impact of Social Restrictions During COVID-19 on the Aquatic Levels of Antimicrobials and Other Drugs in Delhi. Cureus 2024; 16:e60835. [PMID: 38910720 PMCID: PMC11191422 DOI: 10.7759/cureus.60835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/21/2024] [Indexed: 06/25/2024] Open
Abstract
The relative contribution of factors responsible for the environmental exposure of active pharmaceutical ingredients (APIs) is of interest for appropriate remedial measures. This study was carried out to evaluate the post-lockdown levels of APIs in water resources, in comparison to our previously published study from 2016. The environmental levels of 28 drugs from different classes were analyzed in surface water (Yamuna River), aquifers, and leachate samples collected from 26 locations in Delhi-NCR using the previously validated liquid chromatography-mass spectrometry (LC-MS/MS) methods. In addition, the prevalence of antimicrobial resistance in coliforms isolated from targeted surface water samples was also studied. This study revealed that more than 90% of APIs, including antibiotics, decreased drastically in both surface water and aquifers compared to our previous data. Selected samples subjected to antimicrobial resistance (AMR) analysis revealed the presence of cephalosporin-resistant coliform bacteria. Tracing cephalosporins in the surface and drain water samples revealed the presence of ceftriaxone in the drain and water samples from Yamuna River. Higher levels of ceftriaxone in landfill leachate were also found, which were found to be associated with coliform resistance and indicate the un-segregated disposal of medical waste into landfills. Social restrictions enforced due to COVID-19 resulted in a drastic decrease in antimicrobials and other APIs in aquatic water resources. Increased ceftriaxone and cephalosporin resistance was seen in coliform from surface water and drain, indicating the possibility of hospital waste and treatment-related drugs entering Yamuna River. Enforcement of the regulations for the safe disposal of antibiotics at hospitals and preliminary disinfection of hospital sewage before its inflow into common drains might help minimize the spread of antibiotic resistance in the environment.
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Affiliation(s)
- Thirumurthy Velpandian
- High-Precision Bioanalytical Facility (DST-FIST sponsored) Ocular Pharmacology and Pharmacy Division, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, New Delhi, IND
| | - Moksha Laxmi
- High-Precision Bioanalytical Facility (DST-FIST sponsored) Ocular Pharmacology and Pharmacy Division, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, New Delhi, IND
| | - Ujjalkumar Das
- High-Precision Bioanalytical Facility (DST-FIST sponsored) Ocular Pharmacology and Pharmacy Division, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, New Delhi, IND
| | - Gayatri Suresh
- High-Precision Bioanalytical Facility (DST-FIST sponsored) Ocular Pharmacology and Pharmacy Division, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, New Delhi, IND
| | - Arti Kapil
- Microbiology, All India Institute of Medical Sciences, New Delhi, New Delhi, IND
| | - Nabanita Halder
- High-Precision Bioanalytical Facility (DST-FIST sponsored) Ocular Pharmacology and Pharmacy Division, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, New Delhi, IND
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Moghnieh W, Fadlallah M, Saleh F, El-Hariri S, Sokhn ES. Extended spectrum beta-lactamase carriage among elderly residents of a long-term care facility in Beirut. Am J Infect Control 2024; 52:575-579. [PMID: 38036180 DOI: 10.1016/j.ajic.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Antimicrobial resistance is an emerging problem worldwide, endangering antimicrobials efficacy and resulting in high rates of morbidity and mortality. It is one of the major concerns that health care facilities are facing nowadays. Mainly, extended-spectrum beta-lactamases (ESBL)-producing Enterobacterales play a role in hydrolyzing β-lactams, specifically the third-generation cephalosporins. This study aimed to investigate the prevalence of fecal carriage and molecular characterization of ESBL-producing Enterobacterales among Lebanese elderly residents in a long-term care facility (Dar Al-Ajaza Al Islamia Hospital). METHODS Rectal culture swab specimens were collected from 132 patients at Dar Al Ajaza Al Islamia hospital between January 2019 till June 2020. The phenotype of ESBL producers was confirmed by a modified double disc synergy test and antibiotic susceptibility was determined using the Kirby-Bauer disk diffusion method. Genotypically, multiplex polymerase chain reaction was used to detect the ESBL genes. RESULTS The main Enterobacterales strain observed was E coli (90.15%) followed by Klebsiella pneumoniae (4.54%) and Klebsiella oxytoca (3.80%). It has been found that the ESBL percentage rate has decreased when compared to a study conducted previously at the same hospital. Moreover, the predominant ESBL gene was CTX-M (cefotaximase). CONCLUSIONS This study is the first to demonstrate the improved current status of ESBL in one long-term care facility. In addition, the CTX-M is still the major type in ESBL-producing organisms.
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Affiliation(s)
- Wafaa Moghnieh
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
| | - Mahdi Fadlallah
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon; Laboratory Department, INOVIE Laboratory, Baabda, Lebanon
| | - Fatima Saleh
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
| | - Saria El-Hariri
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon
| | - Elie S Sokhn
- Department of Medical Laboratory Technology, Faculty of Health Sciences, Beirut Arab University, Beirut, Lebanon.
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Widiasih DA, Pratama RP, Drastini Y, Putri K, Fatimah LN, Indarjulianto S. Rapid testing of antibiotic residues to increase food safety awareness of animal origin. Vet World 2024; 17:1177-1183. [PMID: 38911089 PMCID: PMC11188884 DOI: 10.14202/vetworld.2024.1177-1183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/26/2024] [Indexed: 06/25/2024] Open
Abstract
Background and Aim Antibiotics are used to improve growth, reduce disease, and decrease mortality in animals grown for food. The government regulates and prohibits the use of antibiotics, in particular, the use of antibiotic growth promoter (AGP) in livestock; however, it is not yet known whether the use of antibiotics is in accordance with regulations so that there are no antibiotic residues in food of animal origin. To ensure food safety of animal origin and to raise awareness of food safety, it is necessary to detect antibiotic residues in fish, eggs, and chicken meat from Yogyakarta Special Province through monitoring and monitoring. To ensure food safety and regulatory compliance in food samples, antibiotic residue screening techniques are essential. A number of methods, such as time-consuming and costly chromatographic and spectroscopic methods, have been developed for the detection of antibiotic residues in food samples; however, not all laboratories have these facilities. Therefore, a rapid diagnosis of food of animal origin is required. The purpose of this study was to rapidly test antibiotic residues by using Premi®test kits (R-Biopharm AG, Germany) to increase awareness of food safety of animal origin. Materials and Methods We tested 345 animal-based food samples from traditional markets, supermarkets, and central markets in five districts of Yogyakarta Special Province for antibiotic residues using rapid test kits and observation questionnaires to identify risk factors. Results The presence of antibiotic residues in food-animal origin samples from the Yogyakarta region had an antibiotic residue level of 9.28% (32/345), consisting of fish samples 11.3% (18/97), eggs 15.65% (1/114), and chicken meat samples 0.87% (13/102). The highest percentage of samples positive for residual antibiotics was 21.9% (7/32) from supermarket meat samples. The highest amounts of antibiotic residues were found in fish samples collected from Sleman Regency, up to 25% (8/32), whereas in supermarket fish samples, there were as high as 18.8% (6/32). Conclusion Antibiotic residues in animal-based food can be attributed to various factors, including product source, transportation conditions, and environmental conditions. The widespread distribution of antibiotic residues in fish comes from environmental conditions during maintenance, distribution, and retailing. Monitoring antibiotic residue prevalence in food-animal origins, particularly chicken meat, eggs, and fish, is crucial for improving animal food quality and safety.
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Affiliation(s)
- Dyah Ayu Widiasih
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | | - Yatri Drastini
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Khrisdiana Putri
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Laila Nur Fatimah
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Soedarmanto Indarjulianto
- Department of Internal Medicine, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Gopikrishnan M, Haryini S, C GPD. Emerging strategies and therapeutic innovations for combating drug resistance in Staphylococcus aureus strains: A comprehensive review. J Basic Microbiol 2024; 64:e2300579. [PMID: 38308076 DOI: 10.1002/jobm.202300579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 02/04/2024]
Abstract
In recent years, antibiotic therapy has encountered significant challenges due to the rapid emergence of multidrug resistance among bacteria responsible for life-threatening illnesses, creating uncertainty about the future management of infectious diseases. The escalation of antimicrobial resistance in the post-COVID era compared to the pre-COVID era has raised global concern. The prevalence of nosocomial-related infections, especially outbreaks of drug-resistant strains of Staphylococcus aureus, have been reported worldwide, with India being a notable hotspot for such occurrences. Various virulence factors and mutations characterize nosocomial infections involving S. aureus. The lack of proper alternative treatments leading to increased drug resistance emphasizes the need to investigate and examine recent research to combat future pandemics. In the current genomics era, the application of advanced technologies such as next-generation sequencing (NGS), machine learning (ML), and quantum computing (QC) for genomic analysis and resistance prediction has significantly increased the pace of diagnosing drug-resistant pathogens and insights into genetic intricacies. Despite prompt diagnosis, the elimination of drug-resistant infections remains unattainable in the absence of effective alternative therapies. Researchers are exploring various alternative therapeutic approaches, including phage therapy, antimicrobial peptides, photodynamic therapy, vaccines, host-directed therapies, and more. The proposed review mainly focuses on the resistance journey of S. aureus over the past decade, detailing its resistance mechanisms, prevalence in the subcontinent, innovations in rapid diagnosis of the drug-resistant strains, including the applicants of NGS and ML application along with QC, it helps to design alternative novel therapeutics approaches against S. aureus infection.
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Affiliation(s)
- Mohanraj Gopikrishnan
- Department of Integrative Biology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
| | - Sree Haryini
- Department of Biomedical Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
| | - George Priya Doss C
- Department of Integrative Biology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
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Abel K, Agnew E, Amos J, Armstrong N, Armstrong-James D, Ashfield T, Aston S, Baillie JK, Baldwin S, Barlow G, Bartle V, Bielicki J, Brown C, Carrol E, Clements M, Cooke G, Dane A, Dark P, Day J, de-Soyza A, Dowsey A, Evans S, Eyre D, Felton T, Fowler T, Foy R, Gannon K, Gerada A, Goodman A, Harman T, Hayward G, Holmes A, Hopkins S, Howard P, Howard A, Hsia Y, Knight G, Lemoine N, Koh J, Macgowan A, Marwick C, Moore C, O’Brien S, Oppong R, Peacock S, Pett S, Pouwels K, Queree C, Rahman N, Sculpher M, Shallcross L, Sharland M, Singh J, Stoddart K, Thomas-Jones E, Townsend A, Ustianowski A, Van Staa T, Walker S, White P, Wilson P, Buchan I, Woods B, Bower P, Llewelyn M, Hope W. System-wide approaches to antimicrobial therapy and antimicrobial resistance in the UK: the AMR-X framework. THE LANCET. MICROBE 2024; 5:e500-e507. [PMID: 38461831 DOI: 10.1016/s2666-5247(24)00003-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 03/12/2024]
Abstract
Antimicrobial resistance (AMR) threatens human, animal, and environmental health. Acknowledging the urgency of addressing AMR, an opportunity exists to extend AMR action-focused research beyond the confines of an isolated biomedical paradigm. An AMR learning system, AMR-X, envisions a national network of health systems creating and applying optimal use of antimicrobials on the basis of their data collected from the delivery of routine clinical care. AMR-X integrates traditional AMR discovery, experimental research, and applied research with continuous analysis of pathogens, antimicrobial uses, and clinical outcomes that are routinely disseminated to practitioners, policy makers, patients, and the public to drive changes in practice and outcomes. AMR-X uses connected data-to-action systems to underpin an evaluation framework embedded in routine care, continuously driving implementation of improvements in patient and population health, targeting investment, and incentivising innovation. All stakeholders co-create AMR-X, protecting the public from AMR by adapting to continuously evolving AMR threats and generating the information needed for precision patient and population care.
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