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Gutiérrez Santana JC, Coria Jiménez VR. Burkholderia cepacia complex in cystic fibrosis: critical gaps in diagnosis and therapy. Ann Med 2024; 56:2307503. [PMID: 38261606 PMCID: PMC10810671 DOI: 10.1080/07853890.2024.2307503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/15/2024] [Indexed: 01/25/2024] Open
Abstract
Burkholderia cepacia complex (Bcc) is a bacterial group with 'natural' multi-antimicrobial resistance. This complex has generated epidemic outbreaks across the world. In people with cystic fibrosis (CF), Bcc can cause severe lung infections that lead to accelerated lung damage, which can be complicated by necrotizing pneumonia accompanied by high fevers, leucocytosis, and bacteraemia, which commonly causes fatal outcomes. Specifically, infection by Burkholderia cenocepacia is considered an exclusion criterion for lung transplantation. The species of Bcc exhibit both genetic and phenotypic hypervariability that complicate their accurate microbiological identification. Automated methods such as MALDI-TOF can err in the determination of species. Their slow growth even in selective agars and the absence of international consensuses on the optimal conditions for their isolation make early diagnosis a difficult challenge to overcome. The absence of correlations between antibiograms and clinical results has resulted in the absence of standardized cut-off values of antimicrobial susceptibility, a fact that brings a latent risk since incorrect antibiotic therapy can induce the selection of more aggressive variants that worsen the clinical picture of the host, added to the absence of a clear therapeutic guide for the eradication of pulmonary infections by Bcc in patients with CF, resulting in frequently ineffective treatments. There is an urgent need to standardize methods and diagnostic tools that would allow an early and accurate diagnosis, as well as to perform clinical studies of the effectiveness of available antibiotics to eradicate Bcc infections, which would allow us to establish standardized therapeutic schemes for Bcc-infected patients.
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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; 22:701-715. [PMID: 38796659 PMCID: PMC11338971 DOI: 10.1007/s40258-024-00889-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [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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Nkontcho Djamkeba F, Sainte-Rose V, Lontsi Ngoulla GR, Roujansky A, Abboud P, Walter G, Houcke S, Demar M, Kallel H, Pujo JM, Djossou F. Trends in the Prevalence of Antimicrobial Resistance in Escherichia coli Isolated from Outpatient Urine Cultures in French Amazonia. Am J Trop Med Hyg 2024; 111:287-296. [PMID: 38917783 PMCID: PMC11310616 DOI: 10.4269/ajtmh.23-0887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/23/2024] [Indexed: 06/27/2024] Open
Abstract
Antimicrobial resistance (AMR) in the community is increasing worldwide. We aimed to assess AMR trends in Escherichia coli from the community urine isolates in French Amazonia. We conducted a retrospective study from January 2016 to December 2022 in the Cayenne General Hospital microbiology laboratory (French Guiana). It included all urine samples positive for E. coli collected from adult outpatients. During the study period, 3,443 urinalyses positive for E. coli were studied. In 46% of cases, patients were women. In 64.4% of cases, E. coli were β-lactamase producers. The most frequently diagnosed resistance mechanisms were penicillinase production and sparing third-generation cephalosporins. Isolated E. coli were extended-spectrum β-lactamase (ESBL) producers in 6.1% of cases. Overall, E. coli was susceptible to amoxicillin in 35.9% [95% CI: 34.3-37.5], to amoxicillin/clavulanic acid in 62.2% [95% CI: 60.6-63.9], to cefotaxime in 94% [95% CI: 93.1-94.7], to gentamicin in 92.1% [95% CI: 89.1-92.6], to ofloxacin in 76.8% [95% CI: 75.3-78.2], to trimethoprim/sulfamethoxazole (SXT) in 58.8% [95% CI: 57.1-60.5], to fosfomycin in 99.1% [95% CI: 98.6-99.4], and to nitrofurantoin in 99% of cases [95% CI: 98.6-99.3]. We have observed a gradual decline in the susceptibility profile of E. coli for amoxicillin/clavulanic acid (P <0.001), piperacillin/tazobactam (P = 0.003), and temocillin (P = 0.006). However, susceptibility to ciprofloxacin was increasing (P = 0.001). In contrast, the susceptibility trends for amoxicillin, third-generation cephalosporins, gentamicin, SXT, nitrofurantoin, and fosfomycin remained stable over the 28 quarters of the study. In conclusion, isolated E. coli from outpatient urinalyses showed increased resistance profiles involving penicillinase and ESBL production. Close monitoring and strategies to decrease antibiotic consumption in the community are needed.
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Affiliation(s)
| | | | | | | | - Philippe Abboud
- Tropical and Infectious Diseases Department, Cayenne General Hospital, French Guiana
| | - Gaelle Walter
- Tropical and Infectious Diseases Department, Cayenne General Hospital, French Guiana
| | | | - Magalie Demar
- Laboratory of Microbiology, Cayenne General Hospital, French Guiana
- Tropical Biome and immunopathology CNRS UMR-9017, Inserm U 1019, Université de Guyane, French Guiana
| | - Hatem Kallel
- Intensive Care Unit, Cayenne General Hospital, French Guiana
- Tropical Biome and immunopathology CNRS UMR-9017, Inserm U 1019, Université de Guyane, French Guiana
| | - Jean Marc Pujo
- Emergency Department, Cayenne General Hospital, French Guiana
| | - Felix Djossou
- Tropical and Infectious Diseases Department, Cayenne General Hospital, French Guiana
- Tropical Biome and immunopathology CNRS UMR-9017, Inserm U 1019, Université de Guyane, French Guiana
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Vargas-Lizarazo AY, Ali MA, Mazumder NA, Kohli GM, Zaborska M, Sons T, Garnett M, Senanayake IM, Goodson BM, Vargas-Muñiz JM, Pond A, Jensik PJ, Olson ME, Hamilton-Brehm SD, Kohli P. Electrically polarized nanoscale surfaces generate reactive oxygenated and chlorinated species for deactivation of microorganisms. SCIENCE ADVANCES 2024; 10:eado5555. [PMID: 39093965 DOI: 10.1126/sciadv.ado5555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 06/27/2024] [Indexed: 08/04/2024]
Abstract
Because of the decreasing supply of new antibiotics, recent outbreaks of infectious diseases, and the emergence of antibiotic-resistant microorganisms, it is imperative to develop new effective strategies for deactivating a broad spectrum of microorganisms and viruses. We have implemented electrically polarized nanoscale metallic (ENM) coatings that deactivate a wide range of microorganisms including Gram-negative and Gram-positive bacteria with greater than 6-log reduction in less than 10 minutes of treatment. The electrically polarized devices were also effective in deactivating lentivirus and Candida albicans. The key to the high deactivation effectiveness of ENM devices is electrochemical production of micromolar cuprous ions, which mediated reduction of oxygen to hydrogen peroxide. Formation of highly damaging species, hydroxyl radicals and hypochlorous acid, from hydrogen peroxide contributed to antimicrobial properties of the ENM devices. The electric polarization of nanoscale coatings represents an unconventional tool for deactivating a broad spectrum of microorganisms through in situ production of reactive oxygenated and chlorinated species.
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Affiliation(s)
- Annie Y Vargas-Lizarazo
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - M Aswad Ali
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - Nehal A Mazumder
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | | | - Miroslava Zaborska
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - Tyler Sons
- Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA
| | - Michelle Garnett
- Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA
| | - Ishani M Senanayake
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - Boyd M Goodson
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
| | - José M Vargas-Muñiz
- Department of Microbiology, Southern Illinois University, Carbondale, IL 62901, USA
| | - Amber Pond
- Department of Anatomy, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA
| | - Philip J Jensik
- Department of Physiology, Southern Illinois University School of Medicine, Carbondale, IL 62901, USA
| | - Michael E Olson
- Department of Medical Microbiology, Immunology and Cell Biology, School of Medicine, Southern Illinois University, Springfield, IL 62702, USA
| | | | - Punit Kohli
- School of Chemical and Biomolecular Sciences, Southern Illinois University, Carbondale, IL 62901, USA
- Integrated Microscopy and Graphics Expertise (IMAGE) Center, Southern Illinois University, Carbondale, IL 62901, USA
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Zhu X, Tang Q, Zhou X, Momeni MR. Antibiotic resistance and nanotechnology: A narrative review. Microb Pathog 2024; 193:106741. [PMID: 38871198 DOI: 10.1016/j.micpath.2024.106741] [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: 01/31/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
The rise of antibiotic resistance poses a significant threat to public health worldwide, leading researchers to explore novel solutions to combat this growing problem. Nanotechnology, which involves manipulating materials at the nanoscale, has emerged as a promising avenue for developing novel strategies to combat antibiotic resistance. This cutting-edge technology has gained momentum in the medical field by offering a new approach to combating infectious diseases. Nanomaterial-based therapies hold significant potential in treating difficult bacterial infections by circumventing established drug resistance mechanisms. Moreover, their small size and unique physical properties enable them to effectively target biofilms, which are commonly linked to resistance development. By leveraging these advantages, nanomaterials present a viable solution to enhance the effectiveness of existing antibiotics or even create entirely new antibacterial mechanisms. This review article explores the current landscape of antibiotic resistance and underscores the pivotal role that nanotechnology plays in augmenting the efficacy of traditional antibiotics. Furthermore, it addresses the challenges and opportunities within the realm of nanotechnology for combating antibiotic resistance, while also outlining future research directions in this critical area. Overall, this comprehensive review articulates the potential of nanotechnology in addressing the urgent public health concern of antibiotic resistance, highlighting its transformative capabilities in healthcare.
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Affiliation(s)
- Xunxian Zhu
- Huaqiao University Hospital, Quanzhou, Fujian, 362021, China.
| | - Qiuhua Tang
- Quanzhou First Hospital, Quanzhou, Fujian, 362000, China
| | - Xiaohang Zhou
- Mudanjiang Medical University, Mu Danjiang, Hei Longjiang, 157012, China
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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 pan drug-resistant Acinetobacter baumannii infection safely and efficiently. Int J Antimicrob Agents 2024; 64:107220. [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] [MESH Headings] [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 Acinetobacter baumannii strains with KL160 capsular polysaccharide, 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 haemolytic effects. Continuous phage injections, both intraperitoneally and intravenously over 7 d, showed no acute toxicity in vivo. Importantly, phage therapy significantly improved neutrophil counts, outperforming ciprofloxacin. However, excessive phage injections suppressed neutrophil levels. The combinatorial treatment of phage-ciprofloxacin 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, China
| | - Jia-Zhen Wu
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China; Department of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Bai-Ling Zhang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiao-Yang Yu
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China; Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Sciences, Northwest University, Xi'an, China
| | - Li-Mei Han
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, 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, China
| | - Hui Li
- Department of Laboratory Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shi-Yong Fu
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Yun-Yao Ren
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Hui Dong
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Yi Xu
- Department of Geriatric Medicine, Jiangxi Provincial People's Hospital, Nanchang, 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, China
| | - Jing-Han Gao
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Chun Wang
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiu-Zhen Chen
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China
| | - Du-Xian Liu
- Department of pathology, the Second Hospital of Nanjing, Affiliated Hospital to Nanjing University of Chinese Medicine, Nanjing, China
| | - Ying Huang
- Department of Infection Control and Management, the Second Hospital of Nanjing, Affiliated Hospital to Nanjing University of Chinese Medicine, Nanjing, China
| | - Jin-Hong Yu
- Department of Clinical Laboratory, the Second Hospital of Nanjing, Affiliated Hospital to Nanjing University of Chinese Medicine, Nanjing, 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, China
| | - Yong-Feng Yang
- The Clinical Infectious Disease Center of Nanjing, Nanjing, China.
| | - Wei Chen
- Clinical Research Center, The Second Hospital of Nanjing, Affiliated to Nanjing University of Chinese Medicine, Nanjing, China.
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de la Lastra JMP, Wardell SJT, Pal T, de la Fuente-Nunez C, Pletzer D. From Data to Decisions: Leveraging Artificial Intelligence and Machine Learning in Combating Antimicrobial Resistance - a Comprehensive Review. J Med Syst 2024; 48:71. [PMID: 39088151 PMCID: PMC11294375 DOI: 10.1007/s10916-024-02089-5] [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: 05/10/2024] [Accepted: 07/12/2024] [Indexed: 08/02/2024]
Abstract
The emergence of drug-resistant bacteria poses a significant challenge to modern medicine. In response, Artificial Intelligence (AI) and Machine Learning (ML) algorithms have emerged as powerful tools for combating antimicrobial resistance (AMR). This review aims to explore the role of AI/ML in AMR management, with a focus on identifying pathogens, understanding resistance patterns, predicting treatment outcomes, and discovering new antibiotic agents. Recent advancements in AI/ML have enabled the efficient analysis of large datasets, facilitating the reliable prediction of AMR trends and treatment responses with minimal human intervention. ML algorithms can analyze genomic data to identify genetic markers associated with antibiotic resistance, enabling the development of targeted treatment strategies. Additionally, AI/ML techniques show promise in optimizing drug administration and developing alternatives to traditional antibiotics. By analyzing patient data and clinical outcomes, these technologies can assist healthcare providers in diagnosing infections, evaluating their severity, and selecting appropriate antimicrobial therapies. While integration of AI/ML in clinical settings is still in its infancy, advancements in data quality and algorithm development suggest that widespread clinical adoption is forthcoming. In conclusion, AI/ML holds significant promise for improving AMR management and treatment outcome.
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Affiliation(s)
- José M Pérez de la Lastra
- Biotechnology of Macromolecules, Instituto de Productos Naturales y Agrobiología, IPNA (CSIC), Avda. Astrofísico Francisco Sánchez, 3, 38206, San Cristóbal de la Laguna, (Santa Cruz de Tenerife), Spain.
| | - Samuel J T Wardell
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, 9054, Dunedin, New Zealand
| | - Tarun Pal
- School of Bioengineering and Food Technology, Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, 173229, Himachal Pradesh, India
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, USA
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, PA, USA
| | - Daniel Pletzer
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, 9054, Dunedin, New Zealand.
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Cresswell K, Hinder S, Sheikh A, Watson N, Price D, Heed A, Pontefract SK, Coleman J, Beggs J, Chuter A, Slee A, Williams R. Complex Hospital-Based Electronic Prescribing-Based Intervention to Support Antimicrobial Stewardship: Qualitative Study. JMIR Form Res 2024; 8:e54458. [PMID: 39059001 PMCID: PMC11316148 DOI: 10.2196/54458] [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: 11/10/2023] [Revised: 03/23/2024] [Accepted: 03/28/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) represents a growing concern for public health. OBJECTIVE We sought to explore the challenges associated with development and implementation of a complex intervention designed to improve AMS in hospitals. METHODS We conducted a qualitative evaluation of a complex AMS intervention with educational, behavioral, and technological components in 5 wards of an English hospital. At 2 weeks and 7 weeks after initiating the intervention, we interviewed 25 users of the intervention, including senior and junior prescribers, a senior nurse, a pharmacist, and a microbiologist. Topics discussed included perceived impacts of different elements of the intervention and facilitators and barriers to effective use. Interviews were supplemented by 2 observations of ward rounds to gain insights into AMS practices. Data were audio-recorded, transcribed, and inductively and deductively analyzed thematically using NVivo12. RESULTS Tracing the adoption and impact of the various components of the intervention was difficult, as it had been introduced into a setting with competing pressures. These particularly affected behavioral and educational components (eg, training, awareness-building activities), which were often delivered ad hoc. We found that the participatory intervention design had addressed typical use cases but had not catered for edge cases that only became visible when the intervention was delivered in real-world settings (eg, variations in prescribing workflows across different specialties and conditions). CONCLUSIONS Effective user-focused design of complex interventions to promote AMS can support acceptance and use. However, not all requirements and potential barriers to use can be fully anticipated or tested in advance of full implementation in real-world settings.
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Affiliation(s)
| | - Susan Hinder
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Aziz Sheikh
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Neil Watson
- Newcastle upon Tyne Hospitals National Health Service Foundation Trust, Newcastle, United Kingdom
| | - David Price
- Newcastle upon Tyne Hospitals National Health Service Foundation Trust, Newcastle, United Kingdom
| | - Andrew Heed
- Newcastle upon Tyne Hospitals National Health Service Foundation Trust, Newcastle, United Kingdom
| | | | - Jamie Coleman
- Institute of Clinical Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Jillian Beggs
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Antony Chuter
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Ann Slee
- Usher Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Robin Williams
- Institute for the Study of Science, Technology and Innovation, The University of Edinburgh, Edinburgh, United Kingdom
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9
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Yudhanto S, Reinhart JM, de Souza CP, Gochenauer A, Sander WE, Hung CC, Maddox CW, Varga C. Assessing Illinois companion animal veterinarians' antimicrobial prescription practices and the factors that influence their decisions when treating bacterial infections in dogs and cats. Zoonoses Public Health 2024. [PMID: 39044541 DOI: 10.1111/zph.13172] [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: 10/05/2023] [Revised: 05/16/2024] [Accepted: 07/11/2024] [Indexed: 07/25/2024]
Abstract
AIMS Judicious antimicrobial use in companion animal practice is critical for maintaining the effectiveness of antimicrobial agents against bacterial infections and reducing the selection of antimicrobial-resistant bacteria. This study aimed to provide insights into companion animal veterinarians' antimicrobial treatment recommendations for common bacterial infections in dogs and cats and describe the factors influencing their prescription choices. METHODS AND RESULTS An online survey using QualtricsXM® software was administered between September and November 2022 to companion animal veterinarians who were Illinois State Veterinary Medical Association members. Descriptive and text analyses were conducted to assess the participants' responses. A total of 78 surveys were included in the analysis. Skin infections were ranked as the most common bacterial infections for which veterinarians prescribed antimicrobial agents, followed by ear, urinary tract, respiratory, and enteric infections. The severity of clinical symptoms and the results of bacterial culture and susceptibility tests were the most influential factors for veterinarians when making antimicrobial prescription choices. Veterinarians were aware of the current antimicrobial prescription guideline recommendations when prescribing antimicrobials empirically to nine hypothetical scenarios of bacterial infections. According to the results of the text analysis that assessed veterinarians' responses to an open-ended question, regarding their challenges when prescribing antimicrobial agents, the pairwise correlation of word frequencies within each response showed the highest correlations between the words 'owner' and 'compliance', 'administration' and 'route', 'cost' and 'culture', and 'patients' and 'acceptance'. CONCLUSIONS The study results can support animal health stakeholders in the development of antimicrobial stewardship programmes to promote appropriate antimicrobial use and limit the emergence of antimicrobial resistance.
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Affiliation(s)
- Setyo Yudhanto
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Jennifer M Reinhart
- Veterinary Teaching Hospital, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Clarissa Pimentel de Souza
- Veterinary Teaching Hospital, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Alexandria Gochenauer
- Veterinary Teaching Hospital, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - William E Sander
- Veterinary Teaching Hospital, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Chien-Che Hung
- Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Veterinary Diagnostic Laboratory, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Carol W Maddox
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Veterinary Diagnostic Laboratory, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Csaba Varga
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
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10
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Alosaimi HM, Alshammari MK, Fetyani MM, Allehidan MS, Almalki TJ, Hussain KH, Hussain HH, Althobaiti MD, Alharbi AS, Alharthi AA, Al-Shammari AA, Al Jamea ZA, Alamro RA, Najmi A. Point prevalence survey of antibiotics use among hospitalised neonates and children in Saudi Arabia: findings and implications. J Pharm Policy Pract 2024; 17:2371411. [PMID: 39011353 PMCID: PMC11249164 DOI: 10.1080/20523211.2024.2371411] [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: 04/17/2024] [Accepted: 06/18/2024] [Indexed: 07/17/2024] Open
Abstract
Background Neonates and children are more susceptible to a variety of infections, leading to frequent antibiotic prescriptions. However, the inappropriate use of antibiotics leads to antibiotic resistance and higher mortality rates. Therefore, this study aimed to determine the prevalence of antibiotic use, and current antibiotic prescribing practices among neonates and children admitted in the selected hospitals of Saudi Arabia. Methods A cross-sectional study was conducted from September to November 2023 to assess the prevalence of antibiotic use, and the current antibiotic prescribing practices across six hospitals of Saudi Arabia. Results The study included 499 children and neonates, with 94.6% receiving antibiotic prescriptions. The most frequently prescribed antibiotic class was third-generation cephalosporin (31.5%), with ceftriaxone being the most commonly prescribed antibiotic (15%). The majority of patients were prescribed one antibiotic (81.4%), and the intravenous route (96.4%) was the primary route for administration. The majority of patients were prescribed antibiotics empirically (69.7%), and community-acquired infections (64.2%) were the most common type of infection for antibiotic prescription. Similarly, sepsis (39.2%) was the most common indication for antibiotics, and the majority of prescribed antibiotics (61.7%) belonged to the 'Watch' category as per WHO AWaRe classification. Conclusion Our study revealed excessive antibiotic consumption in neonates and children, therefore quality improvement programmes including antimicrobial stewardship programmes are urgently needed to address ongoing issues.
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Affiliation(s)
- Hind M Alosaimi
- Department of Pharmacy Services Administration, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Mohammed K Alshammari
- Department of Clinical Pharmacy, King Fahad Medical City, Kingdom of Saudi Arabia, Riyadh, Saudi Arabia
| | - Mohammad M Fetyani
- Department of Pharmacy Services, King Fahad Medical City, Riyadh Second Health Cluster, Riyadh, Saudi Arabia
| | - Maha S Allehidan
- Department of Pharmacy Services, NICU/Pediatric Clinical Pharmacist, Alyamam Hospital, Second Health Cluster, Riyadh, Saudi Arabia
| | - Tahani J Almalki
- Pharmaceutical Care Administration, Armed Forces Hospital Southern Region, Khamis Mushait, Saudi Arabia
| | - Khansa H Hussain
- Department of Cardiac Science, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Haifaa H Hussain
- Department of Nursing, Advanced Practice Nurse, Pediatric Nurse Practitioner, King Faisal Specialist Hospital and Research Center, Kingdom of Saudi Arabia, Riyadh, Saudi Arabia
| | - Mohammed D Althobaiti
- Department of Medical Surgical Nursing, King Faisal Specialist Hospital & Research Center, Kingdom of Saudi Arabia, Riyadh, Saudi Arabia
| | - Abrar S Alharbi
- Department of Pharmaceutical Services, Maternity and Children's Hospital, West Zone, Kingdom of Saudi Arabia, Mecca, Saudi Arabia
| | | | - Amosha A Al-Shammari
- Department of Pharmacy, Maternity and Children Hospital in Rafah, Kingdom of Saudi Arabia, Rafha, Saudi Arabia
| | - Zainab A Al Jamea
- Department of Pharmaceutical Care, King Fahd Hospital of University, Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Rayed A Alamro
- Department of Pharmacy Services, Dr. Sulaiman Al Habib Medical Group Alrayyan Hospital, Riyadh, Saudi Arabia
| | - Ali Najmi
- Pharmaceutical Care Administration, Armed Forces Hospital Southern Region, Khamis Mushait, Saudi Arabia
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11
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Gutiérrez-Santana JC, Rosas-Espinosa V, Martinez E, Casiano-García E, Coria-Jiménez VR. Metal Nanoparticle-Based Biosensors for the Early Diagnosis of Infectious Diseases Caused by ESKAPE Pathogens in the Fight against the Antimicrobial-Resistance Crisis. BIOSENSORS 2024; 14:339. [PMID: 39056615 PMCID: PMC11274948 DOI: 10.3390/bios14070339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 07/28/2024]
Abstract
The species included in the ESKAPE group (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and the genus Enterobacter) have a high capacity to develop antimicrobial resistance (AMR), a health problem that is already among the leading causes of death and could kill 10 million people a year by 2050. The generation of new potentially therapeutic molecules has been insufficient to combat the AMR "crisis", and the World Health Organization (WHO) has stated that it will seek to promote the development of rapid diagnostic strategies. The physicochemical properties of metallic nanoparticles (MNPs) have made it possible to design biosensors capable of identifying low concentrations of ESKAPE bacteria in the short term; other systems identify antimicrobial susceptibility, and some have been designed with dual activity in situ (bacterial detection and antimicrobial activity), which suggests that, in the near future, multifunctional biosensors could exist based on MNPs capable of quickly identifying bacterial pathogens in clinical niches might become commercially available. This review focuses on the use of MNP-based systems for the rapid and accurate identification of clinically important bacterial pathogens, exhibiting the necessity for exhaustive research to achieve these objectives. This review focuses on the use of metal nanoparticle-based systems for the rapid and accurate identification of clinically important bacterial pathogens.
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Affiliation(s)
- Juan Carlos Gutiérrez-Santana
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Insurgentes sur 3700-C, Col. Insurgentes Cuicuilco, Coyoacán C.P. 04530, Mexico (V.R.C.-J.)
| | - Viridiana Rosas-Espinosa
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Insurgentes sur 3700-C, Col. Insurgentes Cuicuilco, Coyoacán C.P. 04530, Mexico (V.R.C.-J.)
| | - Evelin Martinez
- Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Coyoacán C.P. 04960, Mexico;
| | - Esther Casiano-García
- Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Coyoacán C.P. 04960, Mexico;
| | - Victor Rafael Coria-Jiménez
- Laboratorio de Bacteriología Experimental, Instituto Nacional de Pediatría, Insurgentes sur 3700-C, Col. Insurgentes Cuicuilco, Coyoacán C.P. 04530, Mexico (V.R.C.-J.)
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12
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Tang Y, Yang C, Liu C, Xu Y, Peng M, Chan EWC, Chen S. Development of an effective meropenem/KPC-2 inhibitor combination to combat infections caused by carbapenem-resistant Klebsiella pneumoniae. Int J Antimicrob Agents 2024; 64:107268. [PMID: 38972552 DOI: 10.1016/j.ijantimicag.2024.107268] [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: 03/19/2024] [Revised: 06/01/2024] [Accepted: 06/30/2024] [Indexed: 07/09/2024]
Abstract
The global public health threat of antibiotic resistance continues to escalate, and necessitates the implementation of urgent measures to expand the arsenal of antimicrobial drugs. This study identified a benzoxaborane compound, namely 5-chloro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole (AN2178), which can inhibit the catalytic activity of the Klebsiella pneumoniae carbapenemase (KPC-2) enzyme effectively. The efficacy of AN2718 as an inhibitor for the KPC-2 enzyme was verified through various assays, including enzyme activity assays and isothermal titration calorimetry. Results of multiple biochemical assays, minimum inhibitory concentration assays and time-killing assays also showed that binding of AN2718 to KPC-2 enabled restoration of the bactericidal effect of meropenem. The survival rate of mice infected with carbapenem-resistant, high-virulence strains increased significantly upon treatment with AN2718. Most importantly, the meropenem and AN2718 combination was effective on KPC-2 mutations such as KPC-33, which evolved clinically and exhibited resistance to ceftazidime-avibactam after clinical use for a couple of years. Comprehensive safety tests both in vitro and in vivo, such as cytotoxicity, haemolytic activity and cytochrome P450 inhibition assays, demonstrated that AN2718 was safe for clinical use. These promising data indicate that AN2718 has high potential for approval for the treatment of drug resistant-bacterial infections, including those caused by ceftazidime-avibactam-resistant strains. AN2718 can be regarded as a valuable addition to the current antimicrobial armamentarium, and a promising tool to combat antimicrobial resistance.
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Affiliation(s)
- Yang Tang
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Chen Yang
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Chenyu Liu
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Yating Xu
- Department of Infectious Diseases and Public Health, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon, Hong Kong; State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Mingxiu Peng
- Shenzhen Key Laboratory for Food Biological Safety Control, Food Safety and Technology Research Centre, The Hong Kong PolyU Shenzhen Research Institute, Shenzhen, PR China
| | - Edward Wai-Chi Chan
- State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Sheng Chen
- State Key Laboratory of Chemical Biology and Drug Discovery and the Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong; Shenzhen Key Laboratory for Food Biological Safety Control, Food Safety and Technology Research Centre, The Hong Kong PolyU Shenzhen Research Institute, Shenzhen, PR China.
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13
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Khan M, Alkhathlan HZ, Adil SF, Shaik MR, Siddiqui MRH, Khan M, Khan ST. Secondary metabolite profile of Streptomyces spp. changes when grown with the sub-lethal concentration of silver nanoparticles: possible implication in novel compound discovery. Antonie Van Leeuwenhoek 2024; 117:95. [PMID: 38967683 DOI: 10.1007/s10482-024-01991-9] [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: 02/25/2024] [Accepted: 06/18/2024] [Indexed: 07/06/2024]
Abstract
The decline of new antibiotics and the emergence of multidrug resistance in pathogens necessitates a revisit of strategies used for lead compound discovery. This study proposes to induce the production of bioactive compounds with sub-lethal concentrations of silver nanoparticles (Ag-NPs). A total of Forty-two Actinobacteria isolates from four Saudi soil samples were grown with and without sub-lethal concentration of Ag-NPs (50 µg ml-1). The spent broth grown with Ag-NPs, or without Ag-NPs were screened for antimicrobial activity against four bacteria. Interestingly, out of 42 strains, broths of three strains grown with sub-lethal concentration of Ag-NPs exhibit antimicrobial activity against Staphylococcus aureus and Micrococcus luteus. Among these, two strains S4-4 and S4-21 identified as Streptomyces labedae and Streptomyces tirandamycinicus based on 16S rRNA gene sequence were selected for detailed study. The change in the secondary metabolites profile in the presence of Ag-NPs was evaluated using GC-MS and LC-MS analyses. Butanol extracts of spent broth grown with Ag-NPs exhibit strong antimicrobial activity against M. luteus and S. aureus. While the extracts of the controls with the same concentration of Ag-NPs do not show any activity. GC-analysis revealed a clear change in the secondary metabolite profile when grown with Ag-NPs. Similarly, the LC-MS patterns also differ significantly. Results of this study, strongly suggest that sub-lethal concentrations of Ag-NPs influence the production of secondary metabolites by Streptomyces. Besides, LC-MS results identified possible secondary metabolites, associated with oxidative stress and antimicrobial activities. This strategy can be used to possibly induce cryptic biosynthetic gene clusters for the discovery of new lead compounds.
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Affiliation(s)
- Merajuddin Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Hamad Z Alkhathlan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | - Mohammed Rafi Shaik
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia
| | | | - Mujeeb Khan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, 11451, Riyadh, Saudi Arabia.
| | - Shams Tabrez Khan
- Department of Agricultural Microbiology, Faculty of Agricultural Science, Aligarh Muslim University, Aligarh, U.P., 202002, India.
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14
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Fernández‐Trapote E, Oliveira M, Cobo‐Díaz JF, Alvarez‐Ordóñez A. The resistome of the food chain: A One Health perspective. Microb Biotechnol 2024; 17:e14530. [PMID: 39017204 PMCID: PMC11253703 DOI: 10.1111/1751-7915.14530] [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: 04/29/2024] [Accepted: 07/04/2024] [Indexed: 07/18/2024] Open
Abstract
Antimicrobial resistance (AMR) represents a significant global health problem which challenges Sustainable Development Goal 3 of the United Nations, with growing concerns about the possibility of AMR transmission through the food chain. The indiscriminate use of antimicrobials for the treatment of food production animals and for agricultural crop improvement, in addition to the direct discharge of livestock farm residues to sewage and the use of animal manure in agriculture, are among the factors that can facilitate the selection and transmission of AMR throughout the food chain. The study of food microbiomes has been boosted by the advent of next-generation sequencing techniques, which have enabled gaining in-depth understanding of the diversity of antimicrobial resistance genes present in food and associated environments (the so-called resistome). The aim of this review is to provide an accurate and comprehensive overview of the knowledge currently available on the resistome of the most frequently consumed foods worldwide, from a One Health perspective. To this end, the different metagenomic studies which have been conducted to characterize the resistome of foods are compiled and critically discussed.
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Affiliation(s)
| | - Marcia Oliveira
- Department of Food Hygiene and TechnologyUniversidad de LeónLeónSpain
| | - José F. Cobo‐Díaz
- Department of Food Hygiene and TechnologyUniversidad de LeónLeónSpain
| | - Avelino Alvarez‐Ordóñez
- Department of Food Hygiene and TechnologyUniversidad de LeónLeónSpain
- Institute of Food Science and TechnologyUniversidad de LeónLeónSpain
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15
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Correia I, Fernandes S, Bernardino M, Gonçalves Pereira J. Infection on Frail Patients in the Intensive Care Unit: Insights From the PalMuSIC Study. Cureus 2024; 16:e63897. [PMID: 39099977 PMCID: PMC11298117 DOI: 10.7759/cureus.63897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2024] [Indexed: 08/06/2024] Open
Abstract
BACKGROUND Along with population aging, frailty is also increasingly common in the intensive care unit (ICU). However, the impact of frailty on the infection incidence, the risk of multidrug-resistant (MDR) microorganisms, and the potential benefits of broad-spectrum antibiotics are still poorly studied. METHODS This is a multicentric, prospective, observational study collecting data for 15 consecutive days of all consecutive adult patients admitted in each participating ICU. Exclusion criteria included admission for less than 24 hours or failure to obtain informed consent. The Clinical Frailty Score (CFS) was calculated both by the doctor and by the nurse in charge, and the patient's next of kin. Patients were considered frail if the mean of the three measured scores was ≥5. This is a post hoc analysis of the PALliative MUlticenter Study in Intensive Care (PalMuSIC) study. The Hospital de Vila Franca de Xira Ethics Committee approved the study (approval number: 63). RESULTS A total of 335 patients from 23 Portuguese ICUs were included. Frailty was diagnosed in 20.9%. More than 60% of the patients had a diagnosis of infection during their ICU stay, either present on admission or hospital-acquired. This included 25 (35.7%) frail and 75 (28.3%) non-frail (p=0.23) patients diagnosed with infection. In 34 patients, MDR microorganisms were isolated, which were more common in frail patients (odds ratio (OR): 2.65, 95% confidence interval (CI): 1.3-5.6, p=0.018). Carbapenems were started in 37 (18.1%) patients, but after adjusting for frailty and severity, no clear mortality benefit of this strategy was noted (odds ratio for ICU mortality: 1.61, 95% confidence interval: 0.49-5.31, p=0.43; odds ratio for hospital mortality: 1.61, 95% confidence interval: 0.61-4.21, p=0.33). CONCLUSION Frail patients had similar rates of infection to non-frail patients but were more prone to have MDR microorganisms as causative pathogens. The use of empirical therapy with large-spectrum antibiotics should be based on microbiological risk factors and not simply on the host characteristics.
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Affiliation(s)
- Iuri Correia
- Internal Medicine Department, Hospital Professor Doutor Fernando Fonseca, Amadora, PRT
- Palliative Medicine Unit, Hospital CUF Tejo, Lisbon, PRT
| | - Susana Fernandes
- Intensive Care Department, Hospital de Santa Maria, Lisbon, PRT
- Intensive Care University Clinic, Faculdade de Medicina da Universidade de Lisboa, Lisbon, PRT
| | - Mariana Bernardino
- Intensive Care University Clinic, Faculdade de Medicina da Universidade de Lisboa, Lisbon, PRT
| | - João Gonçalves Pereira
- Intensive Care Unit Department, Hospital de Vila Franca de Xira, Vila Franca de Xira, PRT
- Intensive Care University Clinic, Faculdade de Medicina da Universidade de Lisboa, Lisbon, PRT
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16
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Ding N, Zhang B, Khan IM, Qin M, Qi S, Dong X, Wang Z, Yang J. Dual pH- and ATP-Responsive Antibacterial Nanospray: On-Demand Release of Antibacterial Factors, Imaging Monitoring, and Accelerated Healing of Bacteria-Infected Wounds under NIR Activation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30728-30741. [PMID: 38847598 DOI: 10.1021/acsami.4c03587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2024]
Abstract
The prevalence of pathogenic bacterial infections with high morbidity and mortality poses a widespread challenge to the healthcare system. Therefore, it is imperative to develop nanoformulations capable of adaptively releasing antimicrobial factors and demonstrating multimodal synergistic antimicrobial activity. Herein, an NIR-activated multifunctional synergistic antimicrobial nanospray MXene/ZIF-90@ICG was prepared by incorporating ZIF-90@ICG nanoparticles onto MXene-NH2 nanosheets. MXene/ZIF-90@ICG can on-demand release the antimicrobial factors MXenes, ICG, and Zn2+ in response to variations in pH and ATP levels within the bacterial infection microenvironment. Under NIR radiation, the combination of MXenes, Zn2+, and ICG generated a significant amount of ROS and elevated heat, thereby enhancing the antimicrobial efficacy of PDT and PTT. Meanwhile, NIR excitation could accelerate the further release of ICG and Zn2+, realizing the multimodal synergistic antibacterial effect of PDT/PTT/Zn2+. Notably, introducing MXenes improved the dispersion of the synthesized antimicrobial nanoparticles in aqueous solution, rendering MXene/ZIF-90@ICG a candidate for application as a nanospray. Importantly, MXene/ZIF-90@ICG demonstrated antimicrobial activity and accelerated wound healing in the constructed in vivo subcutaneous Staphylococcus aureus infection model with NIR activation, maintaining a favorable biosafety level. Therefore, MXene/ZIF-90@ICG holds promise as an innovative nanospray for adaptive multimodal synergistic and efficient antibacterial applications with NIR activation.
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Affiliation(s)
- Ning Ding
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China
| | - Bo Zhang
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China
| | - Imran Mahmood Khan
- Nottingham Ningbo China Beacons of Excellence Research and Innovation Institute, University of Nottingham Ningbo China, Ningbo 315100, P. R. China
| | - Mingwei Qin
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China
| | - Shuo Qi
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China
| | - Xiaoze Dong
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, P. R. China
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, P. R. China
- Teaching and Research Office of Food Safety, School of Public Course, Bengbu Medical University, Bengbu 233000, P. R. China
| | - Junsong Yang
- Teaching and Research Office of Food Safety, School of Public Course, Bengbu Medical University, Bengbu 233000, P. R. China
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17
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Vanlalveni C, Ralte V, Zohmingliana H, Das S, Anal JMH, Lallianrawna S, Rokhum SL. A review of microbes mediated biosynthesis of silver nanoparticles and their enhanced antimicrobial activities. Heliyon 2024; 10:e32333. [PMID: 38947433 PMCID: PMC11214502 DOI: 10.1016/j.heliyon.2024.e32333] [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: 04/21/2023] [Revised: 05/28/2024] [Accepted: 06/02/2024] [Indexed: 07/02/2024] Open
Abstract
In recent decades, biosynthesis of metal and (or) metal oxide nanoparticles using microbes is accepted as one of the most sustainable, cost-effective, robust, and green processes as it does not encompass the usage of largely hazardous chemicals. Accordingly, numerous simple, inexpensive, and environmentally friendly approaches for the biosynthesis of silver nanoparticles (AgNPs) were reported using microbes avoiding conventional (chemical) methods. This comprehensive review detailed an advance made in recent years in the microbes-mediated biosynthesis of AgNPs and evaluation of their antimicrobial activities covering the literature from 2015-till date. It also aimed at elaborating the possible effect of the different phytochemicals, their concentrations, extraction temperature, extraction solvent, pH, reaction time, reaction temperature, and concentration of precursor on the shape, size, and stability of the synthesized AgNPs. In addition, while trying to understand the antimicrobial activities against targeted pathogenic microbes the probable mechanism of the interaction of produced AgNPs with the cell wall of targeted microbes that led to the cell's reputed and death have also been detailed. Lastly, this review detailed the shape and size-dependent antimicrobial activities of the microbes-mediated AgNPs and their enhanced antimicrobial activities by synergetic interaction with known commercially available antibiotic drugs.
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Affiliation(s)
- Chhangte Vanlalveni
- Department of Botany, Mizoram University, Tanhril, Aizawl, Mizoram 796001, India
| | - Vanlalhruaii Ralte
- Department of Botany, Pachhunga University College, Aizawl, 796001, Mizoram, India
| | - Hlawncheu Zohmingliana
- Department of Chemistry, National Institute of Technology Silchar, Silchar, 788010, India
| | - Shikhasmita Das
- Department of Chemistry, National Institute of Technology Silchar, Silchar, 788010, India
| | - Jasha Momo H. Anal
- Natural Products and Medicinal Chemistry Division, CSIR - Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Samuel Lallianrawna
- Department of Chemistry, Govt. Zirtiri Residential Science College, Aizawl, 796001, Mizoram, India
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Hunt BC, Brix V, Vath J, Guterman BL, Taddei SM, Learman BS, Brauer AL, Shen S, Qu J, Armbruster CE. Metabolic interplay between Proteus mirabilis and Enterococcus faecalis facilitates polymicrobial biofilm formation and invasive disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.03.17.533237. [PMID: 36993593 PMCID: PMC10055233 DOI: 10.1101/2023.03.17.533237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Polymicrobial biofilms play an important role in the development and pathogenesis of CAUTI. Proteus mirabilis and Enterococcus faecalis are common CAUTI pathogens that persistently co-colonize the catheterized urinary tract and form biofilms with increased biomass and antibiotic resistance. In this study, we uncover the metabolic interplay that drives biofilm enhancement and examine the contribution to CAUTI severity. Through compositional and proteomic biofilm analyses, we determined that the increase in biofilm biomass stems from an increase in the protein fraction of the polymicrobial biofilm matrix. We further observed an enrichment in proteins associated with ornithine and arginine metabolism in polymicrobial biofilms compared to single-species biofilms. We show that L-ornithine secretion by E. faecalis promotes arginine biosynthesis in P. mirabilis, and that disruption of this metabolic interplay abrogates the biofilm enhancement we see in vitro and leads to significant decreases in infection severity and dissemination in a murine CAUTI model.
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Affiliation(s)
- Benjamin C. Hunt
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Vitus Brix
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Joseph Vath
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Beryl L. Guterman
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Steven M. Taddei
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Brian S. Learman
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Aimee L. Brauer
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Shichen Shen
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
| | - Jun Qu
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
- NYS Center of Excellence in Bioinformatics and Life Sciences, Buffalo, NY, 14203, United States of America
| | - Chelsie E. Armbruster
- Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, State University of New York at Buffalo, Buffalo, NY, 14203, United States of America
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Freudenhammer M, Hufnagel M, Steib-Bauert M, Mansmann U, de With K, Fellhauer M, Kern WV. Antibiotic use in pediatric acute care hospitals: an analysis of antibiotic consumption data from Germany, 2013-2020. Infection 2024; 52:825-837. [PMID: 37917396 PMCID: PMC11143023 DOI: 10.1007/s15010-023-02112-w] [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: 08/07/2023] [Accepted: 10/08/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Antimicrobial stewardship (AMS) programs are effective tools for improving antibiotic prescription quality. Their implementation requires the regular surveillance of antibiotic consumption at the patient and institutional level. Our study captured and analyzed antibiotic consumption density (ACD) for hospitalized pediatric patients. METHOD We collected antibacterial drug consumption data for 2020 from hospital pharmacies at 113 pediatric departments of acute care hospitals in Germany. ACD was calculated as defined daily dose (DDD, WHO/ATC Index 2019) per 100 patient days (pd). In addition, we analyzed the trends in antibiotic use during 2013-2020. RESULTS In 2020, median ACD across all participating hospitals was 26.7 DDD/100 pd, (range: 10.1-79.2 DDD/100 pd). It was higher at university vs. non-university hospitals (38.6 vs. 25.2 DDD/100 pd, p < 0.0001). The highest use densities were seen on oncology wards and intensive care units at university hospitals (67.3 vs. 38.4 DDD/100 pd). During 2013-2020, overall ACD declined (- 10%) and cephalosporin prescriptions also decreased (- 36%). In 2020, cephalosporins nevertheless remained the most commonly dispensed class of antibiotics. Interhospital variability in cephalosporin/penicillin ratio was substantial. Antibiotics belonging to WHO AWaRe "Watch" and "Reserve" categories, including broad-spectrum penicillins (+ 31%), linezolid (+ 121%), and glycopeptides (+ 43%), increased over time. CONCLUSION Significant heterogeneity in ACD and prescription of different antibiotic classes as well as high prescription rates for cephalosporins and an increased use of reserve antibiotics indicate improvable antibiotic prescribing quality. AMS programs should urgently prioritize these issues to reduce antimicrobial resistance.
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Affiliation(s)
- Mirjam Freudenhammer
- Division of Pediatric Infectious Diseases and Rheumatology, Department of Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany.
- Center for Chronic Immunodeficiency, Institute for Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany.
| | - Markus Hufnagel
- Division of Pediatric Infectious Diseases and Rheumatology, Department of Pediatrics and Adolescent Medicine, University Medical Center Freiburg, Freiburg, Germany
| | - Michaela Steib-Bauert
- Division of Infectious Diseases, Department of Internal Medicine II, University Medical Center Freiburg, Freiburg, Germany
| | - Ulrich Mansmann
- Institute for Medical Information Processing, Biometry and Epidemiology, Faculty of Medicine, LMU Munich, Munich, Germany
| | - Katja de With
- Division of Infectious Diseases, University Hospital Carl Gustav Carus Dresden at the TU Dresden, Dresden, Germany
| | - Matthias Fellhauer
- Pharmacy/Institute for Clinical Pharmacy, Schwarzwald-Baar Hospital, Villingen-Schwenningen, Germany
| | - Winfried V Kern
- Division of Infectious Diseases, Department of Internal Medicine II, University Medical Center Freiburg, Freiburg, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
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20
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Zhang T, Nickerson R, Zhang W, Peng X, Shang Y, Zhou Y, Luo Q, Wen G, Cheng Z. The impacts of animal agriculture on One Health-Bacterial zoonosis, antimicrobial resistance, and beyond. One Health 2024; 18:100748. [PMID: 38774301 PMCID: PMC11107239 DOI: 10.1016/j.onehlt.2024.100748] [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: 08/28/2023] [Accepted: 05/02/2024] [Indexed: 05/24/2024] Open
Abstract
The industrialization of animal agriculture has undoubtedly contributed to the improvement of human well-being by increasing the efficiency of food animal production. At the same time, it has also drastically impacted the natural environment and human society. The One Health initiative emphasizes the interdependency of the health of ecosystems, animals, and humans. In this paper, we discuss some of the most profound consequences of animal agriculture practices from a One Health perspective. More specifically, we focus on impacts to host-microbe interactions by elaborating on how modern animal agriculture affects zoonotic infections, specifically those of bacterial origin, and the concomitant emergence of antimicrobial resistance (AMR). A key question underlying these deeply interconnected issues is how to better prevent, monitor, and manage infections in animal agriculture. To address this, we outline approaches to mitigate the impacts of agricultural bacterial zoonoses and AMR, including the development of novel treatments as well as non-drug approaches comprising integrated surveillance programs and policy and education regarding agricultural practices and antimicrobial stewardship. Finally, we touch upon additional major environmental and health factors impacted by animal agriculture within the One Health context, including animal welfare, food security, food safety, and climate change. Charting how these issues are interwoven to comprise the complex web of animal agriculture's broad impacts on One Health will allow for the development of concerted, multidisciplinary interventions which are truly necessary to tackle these issues from a One Health perspective.
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Affiliation(s)
- Tengfei Zhang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Hubei Provincial Key Laboratory of Animal Pathogenic Microbiology, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Rhea Nickerson
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
| | - Wenting Zhang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Hubei Provincial Key Laboratory of Animal Pathogenic Microbiology, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Xitian Peng
- Institute of Quality Standard and Testing Technology for Agro-Products, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-products, Wuhan 430064, Hubei, China
- Ministry of Agriculture and Rural Affairs Laboratory of Quality and Safe Risk Assessment for Agro-products (Wuhan), Wuhan 430064, Hubei, China
| | - Yu Shang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Hubei Provincial Key Laboratory of Animal Pathogenic Microbiology, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Youxiang Zhou
- Institute of Quality Standard and Testing Technology for Agro-Products, Hubei Academy of Agricultural Sciences, Wuhan 430064, Hubei, China
- Hubei Key Laboratory of Nutritional Quality and Safety of Agro-products, Wuhan 430064, Hubei, China
- Ministry of Agriculture and Rural Affairs Laboratory of Quality and Safe Risk Assessment for Agro-products (Wuhan), Wuhan 430064, Hubei, China
| | - Qingping Luo
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Hubei Provincial Key Laboratory of Animal Pathogenic Microbiology, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
- Hubei Hongshan Laboratory, Wuhan 430064, China
| | - Guoyuan Wen
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture and Rural Affairs), Hubei Provincial Key Laboratory of Animal Pathogenic Microbiology, Institute of Animal Husbandry and Veterinary, Hubei Academy of Agricultural Sciences, Wuhan 430064, China
| | - Zhenyu Cheng
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada
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21
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Yao Z, Zhang Z, Zhang J, Li J, Gao G, Sun T. Charge Effect of Mercaptobenzimidazole-Modified Ultrasmall Gold-Nanoparticles against Drug-Resistant Bacteria. ACS APPLIED BIO MATERIALS 2024; 7:3330-3336. [PMID: 38701398 DOI: 10.1021/acsabm.4c00263] [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] [Indexed: 05/05/2024]
Abstract
The threat of bacterial infections, especially drug-resistant strains, to human health necessitates the development of high-efficient, broad-spectrum and nonantibiotic nanodisinfectant. However, the effect of interfacial charge on the antibacterial properties of nanodisinfectant remains a mystery, which greatly limits the development of highly antibacterial active nanodisinfectant. Herein, we developed three types of ultrasmall (d < 3 nm) gold-nanoparticles (AuNPs) modified with 5-carboxylic(C)/methoxy(M)amino(A)/-2-mercaptobenzimidazole (C/M/A MB) to investigate their interfacial charge on antibacterial performance. Our results showed that both the electropositive AMB-AuNPs and electronegative CMB-AuNPs exhibited no antibacterial activity against both Gram-positive (G+) and Gram-negative (G-) bacteria. However, the electroneutral MMB-AuNPs exhibited unique antibacterial performance against both G+ and G- bacteria, even against methicillin-resistant Staphylococcus aureus (MRSA). Mechanistic investigation revealed a multipathway synergistic bacteriostatic mechanism involving MMB-AuNPs inducing damage to bacterial cell membranes, disruption of membrane potential and downregulation of ATP levels, ultimately leading to bacterial demise. Furthermore, two additional electroneutral AuNPs modified with 5-methyl-2-mercaptobenzimidazole (mMB-AuNPs) and 5-ethoxy-2-mercaptobenzimidazole (EMB-AuNPs) also demonstrated commendable antibacterial efficacy against E. coli, S. aureus, and MRSA; however, their performance was comparatively inferior to that of MMB-AuNPs. This work provides valuable insights for the development of high-performance antibacterial nanomaterials.
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Affiliation(s)
- Zehui Yao
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Zijun Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Jingli Zhang
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Jing Li
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Guanbin Gao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Taolei Sun
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, P. R. China
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22
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Guo S, Shu G, Luo H, Kuang X, Zheng L, Wang C, Zhou CA, Song L, Ma K, Yue H. Low-Cytotoxic Core-Sheath ZnO NWs@TiO 2-xN y Triggered Piezo-photocatalytic Antibacterial Activity. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38709954 DOI: 10.1021/acsami.4c04500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Sonophotodynamic antimicrobial therapy (SPDAT) is recognized as a highly efficient biomedical treatment option, known for its versatility and remarkable healing outcomes. Nevertheless, there is a scarcity of sonophotosensitizers that demonstrate both low cytotoxicity and exceptional antibacterial effectiveness in clinical applications. In this paper, a novel ZnO nanowires (NWs)@TiO2-xNy core-sheath composite was developed, which integrates the piezoelectric effect and heterojunction to build dual built-in electric fields. Remarkably, it showed superb antibacterial effectiveness (achieving 95% within 60 min against S. aureus and ∼100% within 40 min against E. coli, respectively) when exposed to visible light and ultrasound. Due to the continuous interference caused by light and ultrasound, the material's electrostatic equilibrium gets disrupted. The modification in electrical properties facilitates the composite's ability to attract bacterial cells through electrostatic forces. Moreover, Zn-O-Ti and Zn-N-Ti bonds formed at the interface of ZnO NWs@TiO2-xNy, further enhancing the dual internal electric fields to accelerate the excited carrier separation to generate more reactive oxygen species (ROS), and thereby boosting the antimicrobial performance. In addition, the TiO2 layer limited Zn2+ dissolution into solution, leading to good biocompatibility and low cytotoxicity. Lastly, we suggest a mechanistic model to offer practical direction for the future development of antibacterial agents that are both low in toxicity and high in efficacy. In comparison to the traditional photodynamic therapy systems, ZnO NWs@TiO2-xNy composites exhibit super piezo-photocatalytic antibacterial activity with low toxicity, which shows great potential for clinical application as an antibacterial nanomaterial.
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Affiliation(s)
- Shanhong Guo
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guoqiang Shu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hongjie Luo
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xia Kuang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Wang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Chang-An Zhou
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lei Song
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Kui Ma
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hairong Yue
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
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23
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Vicar EK, Walana W, Fordjour RA, Benneh C, Bentil RE, Wuffelle GM, Osabutey EK, Nachinab G, Obeng‐Bempong M. The use of antibiotics during pregnancy: A cross-sectional study of knowledge, attitude, and practices among antenatal care attendees in Northern Ghana. Health Sci Rep 2024; 7:e2111. [PMID: 38779221 PMCID: PMC11109041 DOI: 10.1002/hsr2.2111] [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: 09/20/2023] [Revised: 04/02/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
Background and aims The promotion of rational use of antibiotics among pregnant women is eminent not only for the risk of teratogenicity in the developing fetus but also the risk of drug resistance with its concomitant high cost of health care. Studies on antibiotic self-medication among pregnant women in Northern Ghana are rare. Improving the knowledge and awareness among the vulnerable groups about the appropriate use of antibiotics can help in limiting the antibiotic resistance menace. We, therefore, conducted this study to assess the knowledge, attitude, and practice (KAP) toward antibiotic use among pregnant women attending an antenatal clinic at a primary health care in Tolon, Northern Region, Ghana. Method We conducted a cross-sectional study using an interviewer-administered questionnaire to assess the KAP of 702 pregnant women on antibiotic use. This study was conducted in the Tolon Health Center (THC) from March 2021 and ended in October 2021. Results In this study, 55.6% of pregnant women had good knowledge and 45.3% of them had engaged in self-medication with antibiotics while pregnant. There were statistically significant associations between participants' background and obstetric characteristics and knowledge of antibiotic use and antibiotic resistance, except for age, marital status, and parity. Also, there was a significant association between pregnant women's knowledge and self-medication or over-the-counter purchase of antibiotics. Conclusion We concluded that higher education level, monthly income, good practice, and good knowledge were significantly associated with a reduced likelihood of self-medication with antibiotics. A well-structured education that could be easily accepted and understood by pregnant women on the risks of antibiotic self-medication should be included in the routine education at the antenatal clinics.
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Affiliation(s)
- Ezekiel K. Vicar
- Department of Clinical MicrobiologyUniversity for Development StudiesTamaleGhana
| | - Williams Walana
- Department of Clinical MicrobiologyUniversity for Development StudiesTamaleGhana
| | - Rosemond A. Fordjour
- Department of Midwifery and Women's Health, School of Nursing and MidwiferyUniversity for Development StudiesTamaleGhana
| | - Christiana Benneh
- Department of Midwifery and Women's Health, School of Nursing and MidwiferyUniversity for Development StudiesTamaleGhana
| | - Rosemond E. Bentil
- Department of Midwifery and Women's Health, School of Nursing and MidwiferyUniversity for Development StudiesTamaleGhana
| | - Gifty M. Wuffelle
- Department of Midwifery and Women's Health, School of Nursing and MidwiferyUniversity for Development StudiesTamaleGhana
| | | | - Gilbert Nachinab
- Department of General Nursing, School of Nursing and MidwiferyUniversity for Development StudiesTamaleGhana
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24
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Eikenboom AM, Lambregts MMC, de Boer MGJ, le Cessie S. Influence of initial misdiagnosis on mortality in patients with bacteraemia: propensity score matching and propensity score weighting analyses. BMC Infect Dis 2024; 24:389. [PMID: 38605292 PMCID: PMC11007998 DOI: 10.1186/s12879-024-09299-9] [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: 04/07/2024] [Indexed: 04/13/2024] Open
Abstract
BACKGROUND The diagnostic process is a key element of medicine but it is complex and prone to errors. Infectious diseases are one of the three categories of diseases in which diagnostic errors can be most harmful to patients. In this study we aimed to estimate the effect of initial misdiagnosis of the source of infection in patients with bacteraemia on 14 day mortality using propensity score methods to adjust for confounding. METHODS Data from a previously described longitudinal cohort of patients diagnosed with monobacterial bloodstream infection (BSI) at the Leiden University Medical Centre (LUMC) between 2013 and 2015 were used. Propensity score matching and inversed probability of treatment weighting (IPTW) were applied to correct for confounding. The average treatment effect on the treated (ATT), which in this study was the average effect of initial misdiagnosis on the misdiagnosed (AEMM), was estimated. Methodological issues that were encountered when applying propensity score methods were addressed by performing additional sensitivity analyses. Sensitivity analyses consisted of varying caliper in propensity score matching and using different truncated weights in inversed probability of treatment weighting. RESULTS Data of 887 patients were included in the study. Propensity scores ranged between 0.015 and 0.999 and 80 patients (9.9%) had a propensity score > 0.95. In the matched analyses, 35 of the 171 misdiagnosed patients died within 14 days (20.5%), versus 10 of the 171 correctly diagnosed patients (5.8%), yielding a difference of 14.6% (7.6%; 21.6%). In the total group of patients, the observed percentage of patients with an incorrect initial diagnosis that died within 14 days was 19.8% while propensity score reweighting estimated that their probability of dying would have been 6.5%, if they had been correctly diagnosed (difference 13.3% (95% CI 6.9%;19.6%)). After adjustment for all variables that showed disbalance in the propensity score a difference of 13.7% (7.4%; 19.9%) was estimated. Sensitivity analyses yielded similar results. However, performing weighted analyses without truncation yielded unstable results. CONCLUSION Thus, we observed a substantial increase of 14 day mortality in initially misdiagnosed patients. Furthermore, several patients received propensity scores extremely close to one and were almost sure to be initially misdiagnosed.
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Affiliation(s)
- Anna M Eikenboom
- Department of Infectious Diseases, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Merel M C Lambregts
- Department of Infectious Diseases, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Mark G J de Boer
- Department of Infectious Diseases, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
- Department of Clinical Epidemiology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
| | - Saskia le Cessie
- Department of Clinical Epidemiology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
- Department of Biomedical Data Sciences, Leiden University Medical Centre (LUMC), Leiden, The Netherlands.
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25
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Abdelrahim A, Harrell E, Fedorka-Cray PJ, Jacob M, Thakur S. Phenotypic and Genotypic Characterizations of Antimicrobial-Resistant Escherichia coli Isolates from Diverse Retail Meat Samples in North Carolina During 2018-2019. Foodborne Pathog Dis 2024; 21:211-219. [PMID: 38197854 DOI: 10.1089/fpd.2023.0093] [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] [Indexed: 01/11/2024] Open
Abstract
Surveillance of antimicrobial-resistant pathogens in U.S. retail meats is conducted to identify potential risks of foodborne illness. In this study, we conducted a phenotypic and genotypic analysis of Escherichia coli recovered from a diverse range of retail meat types during 2018-2019 in North Carolina. The investigation was conducted as part of the National Antimicrobial Resistance Monitoring System (NARMS). Retail meat sampling and E. coli isolation were performed in accordance with NARMS retail meat isolation protocols. We used the Sensititre™ broth microdilution system to determine phenotypic resistance to 14 antimicrobial agents and the Illumina next-generation sequencing platform for genotypic resistance profiling. The highest prevalence of E. coli isolates was found in ground turkey (n = 57, 42.9%) and chicken (n = 27, 20.3%), followed by ground beef (n = 25, 18.9%) and pork (n = 24, 18%). The isolates were divided into seven different phylogroups using the Clermont typing tool, with B1 (n = 59, 44.4%) and A (n = 39, 29.3%) being the most dominant, followed by B2 (n = 14, 10.5%), D (n = 7, 5.3%), F (n = 6, 4.5%), E (n = 3, 2.3%), and C (n = 2, 1.5%). Using multilocus sequence typing (MLST), 128 Sequence types (STs) were identified indicating high diversity. Phenotypic and genotypic resistance was observed toward aminoglycosides, sulfonamides, beta-lactams, macrolides, tetracyclines, phenicols, and fluoroquinolones. Ground turkey samples were more resistant to the panel of tested antimicrobials than chicken, beef, or pork (p < 0.05). All isolates were found to be susceptible to meropenem. A high percentage of turkey isolates (n = 16, 28%) were multidrug-resistant (MDR) compared with 18.5% of chicken (n = 5), 8.4% of pork (n = 2), and 8% of beef isolates (n = 2). This study highlights the benefit of surveillance to identify MDR E. coli for epidemiologic tracking and is a comprehensive report of the phenotypic and genotypic characterization of E. coli isolated from retail meats in North Carolina.
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Affiliation(s)
- Afaf Abdelrahim
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Erin Harrell
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Paula J Fedorka-Cray
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Megan Jacob
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Siddhartha Thakur
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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Doğaç Yİ, Tamfu AN, Bozkurt S, Kayhan M, Teke M, Ceylan O. Inhibition of biofilm, quorum-sensing, and swarming motility in pathogenic bacteria by magnetite, manganese ferrite, and nickel ferrite nanoparticles. Biotechnol Appl Biochem 2024; 71:356-371. [PMID: 38062650 DOI: 10.1002/bab.2545] [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: 07/31/2023] [Revised: 10/20/2023] [Accepted: 11/25/2023] [Indexed: 04/11/2024]
Abstract
Resistance to antibiotics by pathogenic bacteria constitutes a health burden and nanoparticles (NPs) are being developed as alternative and multipurpose antimicrobial substances. Magnetite (Fe3O4 np), manganese ferrite (MnFe2O4 np) and nickel ferrite (NiFe3O4 np) NPs were synthesized and characterized using thermogravimetric analysis, transmission electron microscopy, Fourier transformed infra-red, and X-ray diffraction. The minimal inhibitory concentrations (MIC) ranged from 0.625 to 10 mg/mL against gram-positive (Staphylococcus aureus ATCC 25923 and Enterococcus faecalis ATCC 29212), gram-negative (Escherichia coli ATCC 25922 and Pseudomonas aeruginosa ATCC 27853) and candida (Candida albicans ATCC 10239 and Candida tropicalis ATCC 13803) species. The NPs exhibited violacein inhibition against Chromobacterium violaceum CV12472 of 100% at MIC and reduced to 27.2% ± 0.8% for magnetite NPs, 12.7% ± 0.3% for manganese ferrite NPs and 43.1% ± 0.2% for nickel ferrite NPs at MIC/4. Quorum-sensing (QS) inhibition zones against C. violaceum CV026 were 12.5 ±0.6 mm for Fe3O4 np, 09.1 ± 0.5 mm for MnFe3O4 NP and 17.0 ± 1.2 mm for NiFe3O4 np. The NPs inhibited swarming motility against P. aeruginosa PA01 and biofilm against six pathogens and the gram-positive biofilms were more susceptible than the gram-negative ones. The NiFe2O4 np had highest antibiofilm activity against gram-positive and gram-negative bacteria as well as highest QS inhibition while Fe3O4 NP had highest biofilm inhibition against candida species. The synthesized magnetic NPs can be used in developing anti-virulence drugs which reduce pathogenicity of bacteria as well as resistance.
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Affiliation(s)
- Yasemin İspirli Doğaç
- Department of Chemistry and Chemical Processing Technology, Mugla Vocational School, Mugla Sitki Kocman University, Mugla, Turkey
| | - Alfred Ngenge Tamfu
- Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere, Cameroon
- Scientific Analysis Technological Application and Research Center (UBATAM), Usak University, Usak, Turkey
- Food Quality Control and Analysis Program, Ula Ali Kocman Vocational School, Muğla Sitki Koçman University, Ula, , Muğla, Turkey
| | - Selahattin Bozkurt
- Scientific Analysis Technological Application and Research Center (UBATAM), Usak University, Usak, Turkey
- Vocational School of Health Services, Usak University, Usak, Turkey
| | - Mehmet Kayhan
- Scientific Analysis Technological Application and Research Center (UBATAM), Usak University, Usak, Turkey
| | - Mustafa Teke
- Department of Chemistry, Faculty of Science, Mugla Sitki Kocman University, Mugla, Turkey
| | - Ozgur Ceylan
- Food Quality Control and Analysis Program, Ula Ali Kocman Vocational School, Muğla Sitki Koçman University, Ula, , Muğla, Turkey
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Hou X, Yang J, Xie J, Zhu S, Zhang Z. Diversity and Antibiotic Resistance of Triticale Seed-Borne Bacteria on the Tibetan Plateau. Microorganisms 2024; 12:650. [PMID: 38674594 PMCID: PMC11052201 DOI: 10.3390/microorganisms12040650] [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: 02/17/2024] [Revised: 03/16/2024] [Accepted: 03/21/2024] [Indexed: 04/28/2024] Open
Abstract
The Tibetan Plateau is located in southwestern China. It has many important ecological functions, such as biodiversity protection, and is an important grassland agroecosystem in China. With the development of modern agriculture and animal husbandry, antibiotics are widely used to treat humans and livestock, and antibiotics cannot be fully metabolised by both. Antibiotics eventually find their way into the environment, affecting other parts of grassland agroecosystems. Triticale (Triticosecale wittmack) is an artificial hybrid forage that can be used for both grain and forage. This study revealed the diversity of seedborne bacteria in triticale on the Tibetan Plateau and the resistance of the bacteria to nine antibiotics. It identified 37 representative strains and successfully obtained the spliced sequences of 36 strains of the bacteria, which were clustered into 5 phyla and 16 genera. Among them, 18 strains showed resistance to at least one of the 9 antibiotics, and the colony-forming unit (CFU) abundance of antibiotic-resistant bacteria (ARB) accounted for 45.38% of the total samples. Finally, the bacterial motility and biofilm formation ability were measured, and their correlation with bacterial resistance was analysed. The results showed that the bacterial resistance did not have an absolute positive correlation with the motility or biofilm formation ability.
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Affiliation(s)
| | | | | | | | - Zhenfen Zhang
- Key Laboratory of Grassland Ecosystem, Ministry of Education, Pratacultural College, Gansu Agricultural University, Lanzhou 730070, China; (X.H.); (J.Y.); (J.X.); (S.Z.)
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Arora I, Kummer A, Zhou H, Gadjeva M, Ma E, Chuang GY, Ong E. mtx-COBRA: Subcellular localization prediction for bacterial proteins. Comput Biol Med 2024; 171:108114. [PMID: 38401450 DOI: 10.1016/j.compbiomed.2024.108114] [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: 10/09/2023] [Revised: 01/23/2024] [Accepted: 02/04/2024] [Indexed: 02/26/2024]
Abstract
BACKGROUND Bacteria can have beneficial effects on our health and environment; however, many are responsible for serious infectious diseases, warranting the need for vaccines against such pathogens. Bioinformatic and experimental technologies are crucial for the development of vaccines. The vaccine design pipeline requires identification of bacteria-specific antigens that can be recognized and can induce a response by the immune system upon infection. Immune system recognition is influenced by the location of a protein. Methods have been developed to determine the subcellular localization (SCL) of proteins in prokaryotes and eukaryotes. Bioinformatic tools such as PSORTb can be employed to determine SCL of proteins, which would be tedious to perform experimentally. Unfortunately, PSORTb often predicts many proteins as having an "Unknown" SCL, reducing the number of antigens to evaluate as potential vaccine targets. METHOD We present a new pipeline called subCellular lOcalization prediction for BacteRiAl Proteins (mtx-COBRA). mtx-COBRA uses Meta's protein language model, Evolutionary Scale Modeling, combined with an Extreme Gradient Boosting machine learning model to identify SCL of bacterial proteins based on amino acid sequence. This pipeline is trained on a curated dataset that combines data from UniProt and the publicly available ePSORTdb dataset. RESULTS Using benchmarking analyses, nested 5-fold cross-validation, and leave-one-pathogen-out methods, followed by testing on the held-out dataset, we show that our pipeline predicts the SCL of bacterial proteins more accurately than PSORTb. CONCLUSIONS mtx-COBRA provides an accessible pipeline that can more efficiently classify bacterial proteins with currently "Unknown" SCLs than existing bioinformatic and experimental methods.
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Affiliation(s)
- Isha Arora
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA
| | - Arkadij Kummer
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA
| | - Hao Zhou
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA
| | - Mihaela Gadjeva
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA
| | - Eric Ma
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA
| | - Gwo-Yu Chuang
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA
| | - Edison Ong
- Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA.
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29
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Baciu AP, Baciu C, Baciu G, Gurau G. The burden of antibiotic resistance of the main microorganisms causing infections in humans - review of the literature. J Med Life 2024; 17:246-260. [PMID: 39044924 PMCID: PMC11262613 DOI: 10.25122/jml-2023-0404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 02/21/2024] [Indexed: 07/25/2024] Open
Abstract
One of the biggest threats to human well-being and public health is antibiotic resistance. If allowed to spread unchecked, it might become a major health risk and trigger another pandemic. This proves the need to develop antibiotic resistance-related global health solutions that take into consideration microdata from various global locations. Establishing positive social norms, guiding individual and group behavioral habits that support global human health, and ultimately raising public awareness of the need for such action could all have a positive impact. Antibiotic resistance is not just a growing clinical concern but also complicates therapy, making adherence to current guidelines for managing antibiotic resistance extremely difficult. Numerous genetic components have been connected to the development of resistance; some of these components have intricate paths of transfer between microorganisms. Beyond this, the subject of antibiotic resistance is becoming increasingly significant in medical microbiology as new mechanisms underpinning its development are identified. In addition to genetic factors, behaviors such as misdiagnosis, exposure to broad-spectrum antibiotics, and delayed diagnosis contribute to the development of resistance. However, advancements in bioinformatics and DNA sequencing technology have completely transformed the diagnostic sector, enabling real-time identification of the components and causes of antibiotic resistance. This information is crucial for developing effective control and prevention strategies to counter the threat.
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Key Words
- AOM, acute otitis media
- CDC, Centers for Disease Control and Prevention
- CRE, carbapenem-resistant Enterobacterales
- ESBL, extended-spectrum beta-lactamase
- Hib, Haemophilus influenzae type b
- LVRE, linezolid/vancomycin -resistant enterococci
- MBC, minimum bactericidal concentration
- MBL, metallo-beta-lactamases
- MDR, multidrug-resistant
- MIC, minimum inhibitor concentration
- MRSA, methicillin-resistant Staphylococcus aureus
- PBP, penicillin-binding protein
- SCCmec staphylococcal chromosomal cassette mec
- VRE, vancomycin-resistant enterococci
- XDR, extensively drug-resistant
- antibiotic resistance
- antibiotics
- beta-lactamase
- cIAI, complicated intra-abdominal infection
- cUTI, complicated urinary tract infection
- carbapenems
- methicillin-resistant Staphylococcus aureus
- vancomycin
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Affiliation(s)
| | - Carmen Baciu
- MedLife Hyperclinic Nicolae Balcescu, Galati, Romania
| | - Ginel Baciu
- Sf. Ioan Emergency Clinical Hospital for Children, Galati, Romania
- Faculty of Medicine and Pharmacy, Dunarea de Jos University, Galati, Romania
| | - Gabriela Gurau
- Sf. Ioan Emergency Clinical Hospital for Children, Galati, Romania
- Faculty of Medicine and Pharmacy, Dunarea de Jos University, Galati, Romania
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30
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Pandey S, Doo H, Keum GB, Kim ES, Kwak J, Ryu S, Choi Y, Kang J, Kim S, Lee NR, Oh KK, Lee JH, Kim HB. Antibiotic resistance in livestock, environment and humans: One Health perspective. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2024; 66:266-278. [PMID: 38628683 PMCID: PMC11016740 DOI: 10.5187/jast.2023.e129] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 04/19/2024]
Abstract
Antibiotic resistance (AR) is a complex, multifaceted global health issue that poses a serious threat to livestock, humans, and the surrounding environment. It entails several elements and numerous potential transmission routes and vehicles that contribute to its development and spread, making it a challenging issue to address. AR is regarded as an One Health issue, as it has been found that livestock, human, and environmental components, all three domains are interconnected, opening up channels for transmission of antibiotic resistant bacteria (ARB). AR has turned out to be a critical problem mainly because of the overuse and misuse of antibiotics, with the anticipation of 10 million annual AR-associated deaths by 2050. The fact that infectious diseases induced by ARB are no longer treatable with antibiotics foreshadows an uncertain future in the context of health care. Hence, the One Health approach should be emphasized to reduce the impact of AR on livestock, humans, and the environment, ensuring the longevity of the efficacy of both current and prospective antibiotics.
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Affiliation(s)
- Sriniwas Pandey
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Hyunok Doo
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Gi Beom Keum
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Eun Sol Kim
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Jinok Kwak
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Sumin Ryu
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Yejin Choi
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Juyoun Kang
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Sheena Kim
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Na Rae Lee
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
| | - Kwang Kyo Oh
- Microbial Safety Division, National
Institute of Agricultural Sciences, Rural Development
Administration, Wanju 55365, Korea
| | - Ju-Hoon Lee
- Department of Food Animal Biotechnology,
Seoul National University, Seoul 08826, Korea
- Department of Agricultural Biotechnology,
Seoul National University, Seoul 08826, Korea
- Center for Food and Bioconvergence, Seoul
National University, Seoul 08826, Korea
| | - Hyeun Bum Kim
- Department of Animal Biotechnology,
Dankook University, Cheonan 31116, Korea
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Singh S, Sharma P, Pal N, Sarma DK, Kumar M. Antibiotic disposal challenges in India: investigating causes and effects. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:325. [PMID: 38421517 DOI: 10.1007/s10661-024-12425-4] [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: 10/20/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024]
Abstract
Antibiotic resistance has become a global problem and India emerges as a key battlefield in the fight against it. While inappropriate use of antibiotics is well known, the review article deliberates a less recognized yet equally perilous facet of the crisis i.e. improper antibiotic disposal. An investigation of the sources of antibiotic pollution in Indian water bodies identifies discharge of pharmaceutical effluents, hospital waste, and agricultural runoff as major contributing factors. Furthermore, it discusses the repercussions of antibiotic pollution including those relating to human health, aquatic ecosystems, and antibiotic resistance. Reviewing the causes and consequences of improper antibiotic disposal practices emphasizes the necessity of rethinking antibiotic waste management practices. The review highlights the need for stringent rules and increased awareness, while also discussing the emerging technologies and strategies to mitigate the risks of antibiotic disposal in India.
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Affiliation(s)
- Samradhi Singh
- ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India
| | - Poonam Sharma
- ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India
| | - Namrata Pal
- ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India
| | - Devojit Kumar Sarma
- ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India
| | - Manoj Kumar
- ICMR-National Institute for Research in Environmental Health, Bhopal, 462030, Madhya Pradesh, India.
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32
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Jiang YN, Tan M, He C, Wang J, Wei Y, Jing N, Wang B, Yang F, Zhang Y, Li M. Supramolecular Switch for the Regulation of Antibacterial Efficacy of Near-Infrared Photosensitizer. Molecules 2024; 29:1040. [PMID: 38474550 DOI: 10.3390/molecules29051040] [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: 01/17/2024] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
The global antibiotic resistance crisis has drawn attention to the development of treatment methods less prone to inducing drug resistance, such as antimicrobial photodynamic therapy (aPDT). However, there is an increasing demand for new photosensitizers capable of efficiently absorbing in the near-infrared (NIR) region, enabling antibacterial treatment in deeper sites. Additionally, advanced strategies need to be developed to avert drug resistance stemming from prolonged exposure. Herein, we have designed a conjugated oligoelectrolyte, namely TTQAd, with a donor-acceptor-donor (D-A-D) backbone, enabling the generation of reactive oxygen species (ROS) under NIR light irradiation, and cationic adamantaneammonium groups on the side chains, enabling the host-guest interaction with curcubit[7]uril (CB7). Due to the amphiphilic nature of TTQAd, it could spontaneously form nanoassemblies in aqueous solution. Upon CB7 treatment, the positive charge of the cationic adamantaneammonium group was largely shielded by CB7, leading to a further aggregation of the nanoassemblies and a reduced antibacterial efficacy of TTQAd. Subsequent treatment with competitor guests enables the release of TTQAd and restores its antibacterial effect. The reversible supramolecular switch for regulating the antibacterial effect offers the potential for the controlled release of active photosensitizers, thereby showing promise in preventing the emergence of drug-resistant bacteria.
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Affiliation(s)
- Yu-Na Jiang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Manqi Tan
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Chenglong He
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Jiaxi Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yi Wei
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ningning Jing
- College of Science and Technology, Ningbo University, Ningbo 315300, China
| | - Bing Wang
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
| | - Fang Yang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
| | - Yujie Zhang
- Cixi Biomedical Research Institute, Wenzhou Medical University, Ningbo 315302, China
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
| | - Meng Li
- Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Zhejiang International Scientific and Technological Cooperative Base of Biomedical Materials and Technology, Ningbo Cixi Institute of Biomedical Engineering, Ningbo 315300, China
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Tuytschaevers S, Aden L, Greene Z, Nixon C, Shaw W, Hatch D, Kumar G, Miranda RR, Hudson AO. Isolation, whole-genome sequencing, and annotation of two antibiotic-producing and antibiotic-resistant bacteria, Pantoea rodasii RIT 836 and Pseudomonas endophytica RIT 838, collected from the environment. PLoS One 2024; 19:e0293943. [PMID: 38412159 PMCID: PMC10898753 DOI: 10.1371/journal.pone.0293943] [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: 06/21/2023] [Accepted: 10/22/2023] [Indexed: 02/29/2024] Open
Abstract
Antimicrobial resistance (AMR) is a global threat to human health since infections caused by antimicrobial-resistant bacteria are life-threatening conditions with minimal treatment options. Bacteria become resistant when they develop the ability to overcome the compounds that are meant to kill them, i.e., antibiotics. The increasing number of resistant pathogens worldwide is contrasted by the slow progress in the discovery and production of new antibiotics. About 700,000 global deaths per year are estimated as a result of drug-resistant infections, which could escalate to nearly 10 million by 2050 if we fail to address the AMR challenge. In this study, we collected and isolated bacteria from the environment to screen for antibiotic resistance. We identified several bacteria that showed resistance to multiple clinically relevant antibiotics when tested in antibiotic susceptibility disk assays. We also found that two strains, identified as Pantoea rodasii RIT 836 and Pseudomonas endophytica RIT 838 via whole genome sequencing and annotation, produce bactericidal compounds against both Gram-positive and Gram-negative bacteria in disc-diffusion inhibitory assays. We mined the two strains' whole-genome sequences to gain more information and insights into the antibiotic resistance and production by these bacteria. Subsequently, we aim to isolate, identify, and further characterize the novel antibiotic compounds detected in our assays and bioinformatics analysis.
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Affiliation(s)
- Serena Tuytschaevers
- Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York, United States of America
| | - Leila Aden
- Rochester Prep High School, Rochester, New York, United States of America
| | - Zacchaeus Greene
- Rochester Prep High School, Rochester, New York, United States of America
| | - Chanei Nixon
- Rochester Prep High School, Rochester, New York, United States of America
| | - Wade Shaw
- Rochester Prep High School, Rochester, New York, United States of America
| | - Dillan Hatch
- Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York, United States of America
| | - Girish Kumar
- Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York, United States of America
| | - Renata Rezende Miranda
- School of Chemistry and Materials Science, Rochester Institute of Technology, Rochester, New York, United States of America
| | - André O. Hudson
- Thomas H. Gosnell School of Life Sciences, Rochester Institute of Technology, Rochester, New York, United States of America
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Soni J, Sinha S, Pandey R. Understanding bacterial pathogenicity: a closer look at the journey of harmful microbes. Front Microbiol 2024; 15:1370818. [PMID: 38444801 PMCID: PMC10912505 DOI: 10.3389/fmicb.2024.1370818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 02/05/2024] [Indexed: 03/07/2024] Open
Abstract
Bacteria are the most prevalent form of microorganisms and are classified into two categories based on their mode of existence: intracellular and extracellular. While most bacteria are beneficial to human health, others are pathogenic and can cause mild to severe infections. These bacteria use various mechanisms to evade host immunity and cause diseases in humans. The susceptibility of a host to bacterial infection depends on the effectiveness of the immune system, overall health, and genetic factors. Malnutrition, chronic illnesses, and age-related vulnerabilities are the additional confounders to disease severity phenotypes. The impact of bacterial pathogens on public health includes the transmission of these pathogens from healthcare facilities, which contributes to increased morbidity and mortality. To identify the most significant threats to public health, it is crucial to understand the global burden of common bacterial pathogens and their pathogenicity. This knowledge is required to improve immunization rates, improve the effectiveness of vaccines, and consider the impact of antimicrobial resistance when assessing the situation. Many bacteria have developed antimicrobial resistance, which has significant implications for infectious diseases and favors the survival of resilient microorganisms. This review emphasizes the significance of understanding the bacterial pathogens that cause this health threat on a global scale.
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Affiliation(s)
- Jyoti Soni
- Division of Immunology and Infectious Disease Biology, Integrative Genomics of Host Pathogen Laboratory, Council of Scientific & Industrial Research-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research, Ghaziabad, India
| | - Sristi Sinha
- Division of Immunology and Infectious Disease Biology, Integrative Genomics of Host Pathogen Laboratory, Council of Scientific & Industrial Research-Institute of Genomics and Integrative Biology, New Delhi, India
- School of Biosciences and Technology, Vellore Institute of Technology University, Vellore, India
| | - Rajesh Pandey
- Division of Immunology and Infectious Disease Biology, Integrative Genomics of Host Pathogen Laboratory, Council of Scientific & Industrial Research-Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research, Ghaziabad, India
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Zhang R, Gong C, Li J, Zhuang H, Lan L, Zhou L, Shan S, Wang Y. Tracing the transfer characteristics of antibiotic resistance genes from swine manure to biogas residue and then to soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169181. [PMID: 38072280 DOI: 10.1016/j.scitotenv.2023.169181] [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: 09/08/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/18/2024]
Abstract
Based on laboratory simulation experiments and metagenomic analysis, this study tracked the transmission of antibiotic resistance genes (ARGs) from swine manure (SM) to biogas residue and then to soil (biogas residue as organic fertilizer (OF) application). ARGs were abundant in SM and they were assigned to 11 categories of antibiotics. Among the 383 ARG subtypes in SM, 43 % ARG subtypes were absent after anaerobic digestion (AD), which avoided the transfer of these ARGs from SM to soil. Furthermore, 9 % of the ARG subtypes in SM were introduced into soil after amendment with OF. Moreover, 43 % of the ARG subtypes in SM were present in OF and soil, and their abundances increased slightly in the soil amended with OF. The bacterial community in the soil treated with OF was restored to its original state within 60 to 90 days, probably because the abundances of ARGs were elevated but not significantly in the soil. Network analysis identified 31 potential co-host bacteria of ARGs based on the relationships between the bacteria community members, where they mainly belonged to Firmicutes, followed by Bacteroidetes, Actinobacteria, and Proteobacteria. This study provides a basis for objectively evaluating pollution by ARGs in livestock manure for agricultural use.
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Affiliation(s)
- Ranran Zhang
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Zhejiang, Hangzhou 310023, China; School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China.
| | - Chenpan Gong
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Zhejiang, Hangzhou 310023, China
| | - Jimin Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
| | - Haifeng Zhuang
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Zhejiang, Hangzhou 310023, China
| | - Lihua Lan
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Zhejiang, Hangzhou 310023, China
| | - Liuyuan Zhou
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Zhejiang, Hangzhou 310023, China
| | - Shengdao Shan
- Key Laboratory of Recycling and Eco-Treatment of Waste Biomass of Zhejiang Province, School of Environmental and Natural Resource, Zhejiang University of Science and Technology, Zhejiang, Hangzhou 310023, China
| | - Yuheng Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, Shaanxi, 710129, China
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Horyanto D, Bajagai YS, Kayal A, von Hellens J, Chen X, Van TTH, Radovanović A, Stanley D. Bacillus amyloliquefaciens Probiotics Mix Supplementation in a Broiler Leaky Gut Model. Microorganisms 2024; 12:419. [PMID: 38399823 PMCID: PMC10892336 DOI: 10.3390/microorganisms12020419] [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: 01/24/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
The supplementation of antimicrobial growth promoters (AGPs) has been banned in many countries because of the emergence of antimicrobial-resistant pathogens in poultry products and the environment. Probiotics have been broadly studied and demonstrated as a promising AGP substitute. Our study is centred on the effects of a multi-strain Bacillus-based probiotic product on broiler production performance and gut microbial profile in a dexamethasone-induced leaky gut challenge. Two hundred and fifty-six broiler chicks were hatched and randomly assigned into four groups (wheat-soybean meal basal diet (BD) = non-supplemented control (C), BD supplemented with dexamethasone in week 4 (CD), BD containing a probiotic from day one (P), and BD containing a probiotic from day one and supplemented with dexamethasone during challenge week 4 (PD)). The production performance and caecal, gizzard, jejunal lumen and jejunal mucosa swab microbiota were studied by 16S rRNA gene sequencing. The Bacillus probiotic product significantly improved production performance and altered caecal gut microbiota (p ≤ 0.05), but no significant impact on microbiota was observed in other gut sections.
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Affiliation(s)
- Darwin Horyanto
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
- Bioproton Pty Ltd., Acacia Ridge, QLD 4110, Australia (X.C.)
| | - Yadav S. Bajagai
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
| | - Advait Kayal
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
| | | | - Xiaojing Chen
- Bioproton Pty Ltd., Acacia Ridge, QLD 4110, Australia (X.C.)
| | - Thi Thu Hao Van
- School of Science, RMIT University, Bundoora, VIC 3083, Australia
| | - Anita Radovanović
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Dragana Stanley
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
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Firdaus S, Sadaf F, Sharma SK, Prakash V, Tanweer MK, Kibria T. Examining the Perspectives and Attitudes Towards Antibiotic Use and Resistance Among the General Public in Muzaffarpur in Bihar, India. Cureus 2024; 16:e53938. [PMID: 38468979 PMCID: PMC10925818 DOI: 10.7759/cureus.53938] [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: 12/26/2023] [Accepted: 02/09/2024] [Indexed: 03/13/2024] Open
Abstract
Objective This study aimed to examine the current understanding and perspectives about the use of antibiotics among the general public living in the city of Muzaffarpur, Bihar, and the surrounding areas. Methodology A cross-sectional study was carried out from March 2023 to August 2023 in Muzaffarpur. Data was obtained through interviews based on a standardized questionnaire derived from a prior study. The findings were summarized using descriptive statistics, frequencies, and percentages, and then presented in tabular form. Results This study recruited 384 participants in total; the majority of them (n=200, 52.1%) were females, while the remaining 184 (47.9%) participants were males. Our findings revealed that 368 (96%) participants agreed on the necessity of prescribing distinct antibiotics for the treatment of various ailments. Nevertheless, the participants held divergent perspectives regarding the efficacy of antibiotics in treating coughs and colds, as well as their effectiveness against viruses and bacteria. Overall, 354 (92.1%) participants agreed with the importance of finishing the prescribed antibiotic regimen, and 335 (87.2%) agreed that people should refrain from retaining drugs for future use. Of note, 90% of the participants (n=346) stated that they did not think it was advisable to get antibiotics from friends and family without first consulting a doctor. Conclusion The current study documented a prevalent utilization of antibiotics among the study participants, with a significant proportion of these medications being obtained without a prescription. The respondents demonstrated a general lack of understanding, particularly concerning the significance of antibiotics in treating mild viral illnesses.
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Affiliation(s)
- Soofia Firdaus
- Department of Microbiology, Sheikh Bhikhari Medical College, Hazaribagh, IND
| | - Fnu Sadaf
- Department of Pathology, Nalanda Medical College, Patna, IND
| | - Sushant K Sharma
- Department of General Surgery, Sri Krishna Medical College, Muzaffarpur, IND
| | - Vishal Prakash
- Department of Pathology, Nalanda Medical College, Patna, IND
| | | | - Tauseef Kibria
- Department of General Surgery, Sri Krishna Medical College, Muzaffarpur, IND
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Rahim F. Bidirectional effect of poverty and treatment-resistant diseases: The case of antimicrobial resistance in middle and low-income countries. J Infect Public Health 2024; 17:283-285. [PMID: 38141545 DOI: 10.1016/j.jiph.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/28/2023] [Accepted: 12/03/2023] [Indexed: 12/25/2023] Open
Affiliation(s)
- Fakher Rahim
- Fellowship in Clinical Research, Global Burden of Disease (GBD) Collaborator, College of Health Sciences, Cihan University, Sulaimaniya, Kurdistan region, Iraq.
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Ango TS, Gelaw NB, Zegene GM, Teshome T, Getahun T. Prevalence and antimicrobial susceptibility profile of bacteria isolated from the hands of housemaids in Jimma City, Ethiopia. Front Public Health 2024; 11:1301685. [PMID: 38348381 PMCID: PMC10859430 DOI: 10.3389/fpubh.2023.1301685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 12/27/2023] [Indexed: 02/15/2024] Open
Abstract
Introduction Bacterial pathogens continue to be a major cause of foodborne gastroenteritis in humans and remain a public health problem. Housemaids operating inside a kitchen could be the source of infection and may transmit disease-inflicting pathogens through contaminated hands. Objective This study aimed to assess the prevalence and antimicrobial susceptibility profile of bacteria isolated from the hands of housemaids in Jimma City, Ethiopia. Methods A laboratory-based cross-sectional study was employed among 234 housemaids. Hand swab samples from the dominant hand of the study participants were collected under sterile conditions following standard operating procedures. Then, in the laboratory, the swabs were inoculated aseptically using streak-plating methods on the growth media, such as mannitol salt agar [Staphylococcus aureus and coagulase-negative staphylococci], MacConkey agar [Klebsiella species and Proteus species], salmonella-shigella agar [Salmonella species and Shigella species], and eosin methylene blue agar [Escherichia coli (E. coli)]. In addition, a set of biochemical tests was applied to examine bacterial species. Data were double-entered into EpiData version 3.1 and then exported to the Statistical Package for Social Science (SPSS) version 26 for further analysis. Descriptive analyses were summarized using frequency and percentage. Results The proportion of housemaids' hands containing one or more positive bacterial isolates was 72% (95% CI: 66.2, 77.8). The dominant bacterial isolates were Staphylococcus aureus (31.6%), Escherichia coli (21.3%), Salmonella species (1.3%), Shigella species (6.7%), Klebsiella species (23.1%) and Proteus species (14.7%). Fingernail status (AOR =15.31, 95% CI: 10.372, 22.595) and the removal of a watch, ring, and bracelet during hand washing (AOR = 20.844, 95% CI: 2.190, 9.842) were significantly associated with the prevalence of bacterial isolation. Most Staphylococcus aureus isolates were susceptible to chloramphenicol (98.6%). Escherichia coli isolates were susceptible to tetracycline (75%), ceftriaxone (79.2%), chloramphenicol (87.5%), and ceftazidime (77.1%). Eighty percent of isolated Shigella species were susceptible to chloramphenicol and gentamicin respectively. In addition, Klebsiella and Proteus species exhibited high susceptibility to chloramphenicol. However, their isolates showed resistance against a number of the tested antimicrobials. Staphylococcus aureus isolates (28.2%) were resistance to tetracycline. Moreover, One-quarter of Escherichia coli isolates were resistance to tetracycline, ceftriaxone, chloramphenicol, and ceftazidime. Whereas 46.7% and 48.5% of isolated Shigella species and Proteus species were resistance to tetracycline and ceftriaxone. Conclusion The hands of housemaids are important potential sources of pathogenic bacteria that would result in the potential risk of foodborne diseases. Most bacteria isolates were resistant to tetracycline, ceftriaxone, and ceftazidime. Therefore, practicing good hand hygiene helps to prevent and control the spread of antimicrobial-resistant microbes.
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Affiliation(s)
- Tadele Shiwito Ango
- Department of Public Health, Mizan Aman Health Science College, Mizan Aman, Southwest Ethiopia People Regional State, Ethiopia
| | - Negalgn Byadgie Gelaw
- Department of Public Health, Mizan Aman Health Science College, Mizan Aman, Southwest Ethiopia People Regional State, Ethiopia
| | - Girma Mamo Zegene
- Department of Public Health, Mizan Aman Health Science College, Mizan Aman, Southwest Ethiopia People Regional State, Ethiopia
| | - Tizita Teshome
- Department of Environmental Health Sciences and Technology, Institute of Health, Jimma University, Jimma, Ethiopia
| | - Tesfalem Getahun
- Department of Environmental Health Sciences and Technology, Institute of Health, Jimma University, Jimma, Ethiopia
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Islam MW, Shahjahan M, Azad AK, Hossain MJ. Factors contributing to antibiotic misuse among parents of school-going children in Dhaka City, Bangladesh. Sci Rep 2024; 14:2318. [PMID: 38282010 PMCID: PMC10822859 DOI: 10.1038/s41598-024-52313-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: 09/24/2023] [Accepted: 01/17/2024] [Indexed: 01/30/2024] Open
Abstract
Antimicrobial resistance (AMR) is a pressing global health concern, especially in resource-constrained countries, such as Bangladesh. This study aimed to identify the factors contributing to antibiotic misuse by assessing knowledge, attitude, and practice (KAP). A cross-sectional study was conducted from August 20 to August 30, 2022, among 704 parents of school-going children in Dhaka South City. Descriptive statistics were used to analyze the KAP, and multivariate models, including linear and ordinal logistic regression, were used to explore the associations between these factors. The findings revealed that approximately 22% of the participants were male and 78% were female. Most parents (58%) had completed higher secondary education. Approximately 45% of the respondents demonstrated moderate knowledge, 53% had uncertain attitudes, and 64% exhibited antibiotic misuse. Factors such as parental age, education level, employment status, income, child's age, and family type significantly influenced KAP. These findings emphasize the importance of targeted education and awareness initiatives to enhance knowledge and responsible antibiotic use among parents, contributing to global efforts against antibiotic resistance. The government should enforce laws and regulations regarding the misuse of antibiotics.
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Affiliation(s)
- Md Wahidul Islam
- Population Health Studies Division, Center for Health Innovation, Research, Action, and Learning-Bangladesh (CHIRAL Bangladesh), 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh
| | - Muhibullah Shahjahan
- Population Health Studies Division, Center for Health Innovation, Research, Action, and Learning-Bangladesh (CHIRAL Bangladesh), 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh
| | - Abul Kalam Azad
- Department of Microbiology, Jagannath University, 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh
| | - Md Jubayer Hossain
- Population Health Studies Division, Center for Health Innovation, Research, Action, and Learning-Bangladesh (CHIRAL Bangladesh), 9-10 Chittaranjan Ave, Dhaka, 1100, Bangladesh.
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Cardoza E, Singh H. From Stress Tolerance to Virulence: Recognizing the Roles of Csps in Pathogenicity and Food Contamination. Pathogens 2024; 13:69. [PMID: 38251376 PMCID: PMC10819108 DOI: 10.3390/pathogens13010069] [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: 10/30/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
Be it for lab studies or real-life situations, bacteria are constantly exposed to a myriad of physical or chemical stresses that selectively allow the tolerant to survive and thrive. In response to environmental fluctuations, the expression of cold shock domain family proteins (Csps) significantly increases to counteract and help cells deal with the harmful effects of stresses. Csps are, therefore, considered stress adaptation proteins. The primary functions of Csps include chaperoning nucleic acids and regulating global gene expression. In this review, we focus on the phenotypic effects of Csps in pathogenic bacteria and explore their involvement in bacterial pathogenesis. Current studies of csp deletions among pathogenic strains indicate their involvement in motility, host invasion and stress tolerance, proliferation, cell adhesion, and biofilm formation. Through their RNA chaperone activity, Csps regulate virulence-associated genes and thereby contribute to bacterial pathogenicity. Additionally, we outline their involvement in food contamination and discuss how foodborne pathogens utilize the stress tolerance roles of Csps against preservation and sanitation strategies. Furthermore, we highlight how Csps positively and negatively impact pathogens and the host. Overall, Csps are involved in regulatory networks that influence the expression of genes central to stress tolerance and virulence.
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Affiliation(s)
| | - Harinder Singh
- Department of Biological Sciences, Sunandan Divatia School of Science, NMIMS University, Vile Parle West, Mumbai 400056, India
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Plaatjie MTA, Onyiche TE, Ramatla T, Bezuidenhout JJ, Legoabe L, Nyembe NI, Thekisoe O. A scoping review on efficacy and safety of medicinal plants used for the treatment of diarrhea in sub-Saharan Africa. Trop Med Health 2024; 52:6. [PMID: 38173018 PMCID: PMC10763068 DOI: 10.1186/s41182-023-00569-x] [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: 10/21/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND In sub-Saharan Africa (SSA), significant morbidity and mortality have been linked to diarrhea, which is frequently caused by microorganisms. A rise in antimicrobial-resistant pathogens has reignited the search for alternative therapies. This scoping review aims to map the literature on medicinal plants in relation to their anti-diarrheal potential from SSA. METHODS Studies published from 1990 until April 2022 on medicinal plants used for the treatment of diarrhea from each country in SSA were searched on Scopus, Web of Science, Science Direct and PubMed. The selection of articles was based on the availability of data on the in vitro and/or in vivo, ethnobotanical, and cross-sectional studies on the efficacy of medicinal plants against diarrhea. A total of 67 articles (ethnobotanical (n = 40); in vitro (n = 11), in vivo (n = 7), cross-sectional (n = 3), in vitro and in vivo (n = 2) and ethnobotanical and in vitro (n = 2), were considered for the descriptive analysis, which addressed study characteristics, herbal intervention information, phytochemistry, outcome measures, and toxicity findings. RESULTS A total of 587 different plant species (from 123 families) used for diarrhea treatment were identified. Most studies were conducted on plants from the Fabaceae family. The plants with the strongest antimicrobial activity were Indigofera daleoides and Punica granatum. Chromatographic methods were used to isolate six pure compounds from ethyl acetate extract of Hydnora johannis, and spectroscopic methods were used to determine their structures. The majority of anti-diarrheal plants were from South Africa (23.9%), Ethiopia (16.4%), and Uganda (9%). This study highlights the value of traditional remedies in treating common human diseases such as diarrhea in SSA. CONCLUSION Baseline knowledge gaps were identified in various parts of SSA. It is therefore recommended that future ethnobotanical studies document the knowledge held by other countries in SSA that have so far received less attention. Additionally, we recommend that future studies conduct phytochemical investigations, particularly on the widely used medicinal plants for the treatment of diarrheal illnesses, which can serve as a foundation for future research into the development of contemporary drugs.
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Affiliation(s)
- Moitshepi T A Plaatjie
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - ThankGod E Onyiche
- Department of Veterinary Parasitology and Entomology, University of Maiduguri, Maiduguri, 600230, Nigeria
| | - Tsepo Ramatla
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa.
- Gastrointestinal Research Unit, Department of Surgery, School of Clinical Medicine, University of the Free State, Bloemfontein, 9300, South Africa.
| | - Johannes J Bezuidenhout
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - Lesetja Legoabe
- Pharmaceutical Chemistry, School of Pharmacy, North-West University, Potchefstroom, 2520, South Africa
| | - Nthatisi I Nyembe
- Department of Zoology and Entomology, University of the Free State, Phuthaditjhaba, South Africa
| | - Oriel Thekisoe
- Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
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Gu X, Yuan H, Li C, Xu L, Li S, Yu D. Toluidine blue O photosensitizer combined with caffeic acid improves antibacterial performance by increasing the permeability of cell membrane. Colloids Surf B Biointerfaces 2024; 233:113657. [PMID: 38000122 DOI: 10.1016/j.colsurfb.2023.113657] [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: 08/11/2023] [Revised: 10/25/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
Photodynamic therapy has always been an antibacterial tool for solving multi-drug resistant bacteria problem, but the side effects and the low efficiency due to the high aggregation and low solubility of photosensitizers limit its application. Due to the anti-inflammatory effect of caffeic acid, two novel photosensitizers (CA-1-TBO, CA-TBO) were synthesized by conjugating caffeic acid with toluidine blue O (TBO). The structures have been characterized by 1HNMR and high-resolution mass spectrometry. The UV-vis absorption, fluorescence spectra and the octanol-water partition coefficient of two photosensitizers were measured to evaluate their photophysical properties and hydrophilic/hydrophobic properties. Compared with parent TBO, the two modified photosensitizers have shown a higher quantum yield and kinetics constants of singlet oxygen, which has been supported by the simulation results of density functional theory. As drug-resistant representatives of gram-positive and gram-negative bacteria, respectively, S. aureus and P. aeruginosa have been used for in vitro antibacterial experiments. The sterilization efficiencies of the two modified photosensitizers far exceed that of parent TBO. The results of the octanol-water partition coefficient and fluorescence quantification showed that modified photosensitizers CA-1-TBO and CA-TBO could be more accumulated than parent TBO. Based on scanning electron microscopy images, protein gel electrophoresis, and the conductivity of the bacterial solution, the possible mechanism of improved antibacterial photodynamic efficiencies could be induced by membrane permeability due to the caffeic acid effect. The findings demonstrate the significant potential of natural phenolic compounds in the development of photosensitizer molecules with characteristics such as more efficient, biocompatible and less side effects.
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Affiliation(s)
- Xiaoxiao Gu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Haoyang Yuan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Cailing Li
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Lixian Xu
- Department of Dermatology, The Second Affiliated Hospital of Nanjing Medical University, No.121 Jiangjiayuan Road, Nanjing 210000, PR China
| | - Shuang Li
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Dinghua Yu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China.
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Can Karanlık C, Karanlık G, Özdemir S, Tollu G, Erdoğmuş A. Synthesis and characterization of novel BODIPYs and their antioxidant, antimicrobial, photodynamic antimicrobial, antibiofilm and DNA interaction activities. Photochem Photobiol 2024; 100:101-114. [PMID: 37317040 DOI: 10.1111/php.13825] [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: 04/13/2023] [Revised: 05/29/2023] [Accepted: 05/29/2023] [Indexed: 06/16/2023]
Abstract
In the current study, we synthesized and characterized new BODIPY derivatives (1-4) having pyridine or thienyl-pyridine substituents at meso- position and 4-dibenzothienyl or benzo[b]thien-2-yl moieties at 2-,6- positions. We investigated fluorescence properties and the ability to form singlet oxygen. In addition, various biological activities of BODIPYs such as DPPH scavenging, DNA binding/cleavage ability, cell viability inhibition, antimicrobial activity, antimicrobial photodynamic therapy (aPDT) and biofilm inhibition properties were performed. BODIPY derivatives BDPY-3 (3) and BDPY-4 (4) have high fluorescence quantum yields as 0.50 and 0.61 and 1 O2 quantum yields were calculated as 0.83 for BDPY-1 (1), 0.12 for BDPY-2 (2), 0.11 for BDPY-3 and 0.23 for BDPY-4. BODIPY derivatives BDPY-2, BDPY-3 and BDPY-4 displayed 92.54 ± 5.41%, 94.20 ± 5.50%, and 95.03 ± 5.54% antioxidant ability, respectively. BODIPY compounds showed excellent DNA chemical nuclease activity. BDPY-2, BDPY-3 and BDPY-4 also exhibited 100% APDT activity against E. coli at all tested concentrations. In addition to these, they demonstrated a highly effective biofilm inhibition activity against Staphyloccous aureus and Pseudomans aeruginosa. BDPY-4 showed the most effective antioxidant and DNA cleavage activity, while BDPY-3 exhibited the most effective antimicrobial and antibiofilm activity.
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Affiliation(s)
| | - Gürkan Karanlık
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Sadin Özdemir
- Food Processing Programme, Technical Science Vocational School, Mersin University, Mersin, Turkey
| | - Gülşah Tollu
- Department of Laboratory and Veterinary Health, Technical Science Vocational School, Mersin University, Mersin, Turkey
| | - Ali Erdoğmuş
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
- Health Biotechnology Joint Research and Application Center of Excellence, Istanbul, Turkey
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Chaudhary T, Upadhyay PK, Kataria R. Anti-inflammatory and Antimicrobial Potential of 1, 3, 4-oxadiazoles and its Derivatives: A Review. Curr Org Synth 2024; 21:1014-1020. [PMID: 38037905 DOI: 10.2174/0115701794265887231014061317] [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: 06/06/2023] [Revised: 08/19/2023] [Accepted: 09/15/2023] [Indexed: 12/02/2023]
Abstract
1, 3, 4-oxadiazole and its derivatives have significant anti-inflammatory and antimicrobial property. Their precise mechanism of action is not known but it is postulated that they act by inhibiting the biosynthesis of certain prostaglandins. 1, 3, 4-oxadiazoles are a class of heterocyclic compounds with wide variety of biological and pharmacological activities. They have been reported to possess analgesic, antimicrobial, antipyretic and anti-inflammatory properties. These compounds are also active against a number of other inflammatory conditions such as arthritis, gout etc. A wide variety of these compounds have been synthesized and some of them are under clinical trials. In this review article, anti-inflammatory and antimicrobial activity of the 1, 3, 4- oxadiazole shall be discussed.
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Affiliation(s)
- Tarun Chaudhary
- Department of Medicinal Chemistry, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Prabhat Kumar Upadhyay
- Department of Medicinal Chemistry, Institute of Pharmaceutical Research, GLA University, Mathura, 281406, Uttar Pradesh, India
| | - Ritu Kataria
- Department of Chemistry, G.V.M College of Pharmacy, Sonipat, Haryana, 131001, India
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Garba Z, Kaboré B, Bonkoungou IJO, Natama MH, Rouamba T, Haukka K, Kirveskari JP, Tinto H, Sangaré L, Barro N, Kantele A. Phenotypic Detection of Carbapenemase and AmpC-β-Lactamase Production among Extended Spectrum β-Lactamase (ESBL)-Producing Escherichia coli and Klebsiella spp. Isolated from Clinical Specimens. Antibiotics (Basel) 2023; 13:31. [PMID: 38247589 PMCID: PMC10812623 DOI: 10.3390/antibiotics13010031] [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: 11/09/2023] [Revised: 12/18/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
Introduction: Data on antimicrobial resistance (AMR) are sparse across numerous African countries, as microbiological analyses are not routinely conducted and surveillance data are not collected. Accordingly, clinical samples are not routinely tested for carbapenem-resistant bacteria and, therefore, the general understanding of their prevalence in the region remains limited. Methods: Between January 2020 and June 2022, we collected extended spectrum β-lactamase (ESBL)-producing Enterobacterales (ESBL-PE) isolates from five hospitals in Burkina Faso. After an initial culture on ESBL-selective media, the species were identified using API20E and isolates were tested against 13 antimicrobial agents using the disc diffusion method on Mueller-Hinton (MH) agar. ESBL production was confirmed via a double-disc synergy test. Production of carbapenemases and AmpC-β-lactamases and phenotypic co-resistance were determined. Results: Among the 473 ESBL-PE, 356 were ESBL-E. coli (ESBL-Ec) and 117 were Klebsiella spp. (ESBL-K). Of these isolates, 5.3% were carbapenemase and 5.3% were AmpC-β-lactamase-positive. Three types of carbapenemases were identified: 19 NDM, 3 OXA-48-like and 1 VIM. Two isolates produced both NDM and OXA-48-like carbapenemases. Carbapenemase producers were detected at all levels of healthcare. Co-resistance rates were up to 85% for aminoglycosides, 90% for sulfonamides, 95% for fluoroquinolones and 25% for chloramphenicol. Fosfomycin resistance was 6% for ESBL-Ec and 49% for ESBL-K (49%). Conclusions: Some of the ESBL-Ec and ESBL-K co-produced carbapenemases and/or AmpC-β-lactamases at all healthcare levels and in various sample types with high co-resistance rates to non-betalactams. Carbapenem resistance is no longer rare, calling for testing in routine diagnostics, a comprehensive resistance surveillance system and infection control within healthcare.
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Affiliation(s)
- Zakaria Garba
- Department of Biochemistry and Microbiology, Université Joseph KI-ZERBO, Ouagadougou 03 BP 7021, Burkina Faso; (I.J.O.B.); (N.B.)
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Ouagadougou 11 BP 218, Burkina Faso; (B.K.); (M.H.N.); (T.R.); (H.T.)
| | - Bérenger Kaboré
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Ouagadougou 11 BP 218, Burkina Faso; (B.K.); (M.H.N.); (T.R.); (H.T.)
| | - Isidore J. O. Bonkoungou
- Department of Biochemistry and Microbiology, Université Joseph KI-ZERBO, Ouagadougou 03 BP 7021, Burkina Faso; (I.J.O.B.); (N.B.)
| | - Magloire H. Natama
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Ouagadougou 11 BP 218, Burkina Faso; (B.K.); (M.H.N.); (T.R.); (H.T.)
| | - Toussaint Rouamba
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Ouagadougou 11 BP 218, Burkina Faso; (B.K.); (M.H.N.); (T.R.); (H.T.)
| | - Kaisa Haukka
- Department of Microbiology, University of Helsinki, 00014 Helsinki, Finland;
- Human Microbiome Research Program, Medical Faculty, University of Helsinki, 00014 Helsinki, Finland
| | - Juha P. Kirveskari
- Helsinki Innovation Services Ltd., University of Helsinki, 00014 Helsinki, Finland;
| | - Halidou Tinto
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de la Santé, Ouagadougou 11 BP 218, Burkina Faso; (B.K.); (M.H.N.); (T.R.); (H.T.)
| | - Lassana Sangaré
- Department of Health Sciences, Université Joseph KI-ZERBO, Ouagadougou 03 BP 7021, Burkina Faso;
| | - Nicolas Barro
- Department of Biochemistry and Microbiology, Université Joseph KI-ZERBO, Ouagadougou 03 BP 7021, Burkina Faso; (I.J.O.B.); (N.B.)
| | - Anu Kantele
- Human Microbiome Research Program, Medical Faculty, University of Helsinki, 00014 Helsinki, Finland
- Meilahti Infectious Diseases and Vaccine Research Center MeiVac, Helsinki University Hospital, 00029 Helsinki, Finland
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Imeri M, Krasniqi S, Raka L, Humolli I, Hoti K, Imeri Z, Zhjeqi V. Evaluation of parents' attitudes and practices related to antibiotic use for their children in Kosovo: a cross-sectional survey. J Pharm Policy Pract 2023; 16:168. [PMID: 38093388 PMCID: PMC10717770 DOI: 10.1186/s40545-023-00676-4] [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: 07/24/2023] [Accepted: 11/20/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND Self-medication and lack of patient adherence contribute to antibiotic misuse. This article describes parents' attitudes and practices regarding use of antibiotics by their children in Kosovo. METHODS A cross-sectional survey was conducted during data collection. We surveyed a total of 453 parents of children aged 0-15 years, who had experiences with using antibiotics for their children. Correlation tests and regression analysis were used to explore the relationship between variables. RESULTS Our findings showed that 42.2% of parents strongly agreed or agreed with the use of antibiotics as a means to cure a cold or flu in their child more quickly. In addition, 29.8% were not aware of antibiotic side effects. Non-compliance with antibiotic treatment was 35.8%, and 28.9% of surveyed parents suggested that they had pressured their pediatricians to prescribe antibiotics for their children. A total of 10.15% of parents had no information on antibiotic resistance, and 34.38% of parents responded that they did not believe that self-medication with antibiotics could lead to resistance. Regression analysis results indicated that gender and age group have a significant influence on the parents' decision that an antibiotic should be used in children with high fever (p < 0.001). CONCLUSIONS Our findings suggest that antibiotic management by parents in Kosovo is not satisfactory, and more attention should be given to their knowledge of the side effects of antibiotics, bacterial resistance and reduction in the self-medication. Health education, adequate measures and interventions are needed to overcome this situation and ensure rational use of antibiotics in Kosovo.
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Affiliation(s)
- Miradije Imeri
- Hospital and University Clinical Service of Kosova, 10000, Prishtina, Republic of Kosovo
| | - Shaip Krasniqi
- Hospital and University Clinical Service of Kosova, 10000, Prishtina, Republic of Kosovo.
- Faculty of Medicine, University of Prishtina "Hasan Prishtina" (UPHP), Rr. Bulevardi i Dëshmorëve, 10000, Prishtina, Republic of Kosovo.
| | - Lul Raka
- Faculty of Medicine, University of Prishtina "Hasan Prishtina" (UPHP), Rr. Bulevardi i Dëshmorëve, 10000, Prishtina, Republic of Kosovo
- Institute of Public Health of Kosova, 10000, Prishtina, Republic of Kosovo
| | - Isme Humolli
- Faculty of Medicine, University of Prishtina "Hasan Prishtina" (UPHP), Rr. Bulevardi i Dëshmorëve, 10000, Prishtina, Republic of Kosovo
- Institute of Public Health of Kosova, 10000, Prishtina, Republic of Kosovo
| | - Kreshnik Hoti
- Institute of Public Health of Kosova, 10000, Prishtina, Republic of Kosovo
| | - Zana Imeri
- Faculty of Medicine, University of Prishtina "Hasan Prishtina" (UPHP), Rr. Bulevardi i Dëshmorëve, 10000, Prishtina, Republic of Kosovo
| | - Valbona Zhjeqi
- Faculty of Medicine, University of Prishtina "Hasan Prishtina" (UPHP), Rr. Bulevardi i Dëshmorëve, 10000, Prishtina, Republic of Kosovo
- Institute of Public Health of Kosova, 10000, Prishtina, Republic of Kosovo
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Golden M, Post SJ, Rivera R, Wuest WM. Investigating the Role of Metabolism for Antibiotic Combination Therapies in Pseudomonas aeruginosa. ACS Infect Dis 2023; 9:2386-2393. [PMID: 37938982 PMCID: PMC10714402 DOI: 10.1021/acsinfecdis.3c00452] [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: 08/31/2023] [Revised: 11/01/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Abstract
Antibacterial resistance poses a severe threat to public health; an anticipated 14-fold increase in multidrug-resistant (MDR) bacterial infections is expected to occur by 2050. Contrary to antibiotics, combination therapies are the standard of care for antiviral and anticancer treatments, as synergistic drug-drug interactions can decrease dosage and resistance development. In this study, we investigated combination treatments of a novel succinate dehydrogenase inhibitor (promysalin) with specific inhibitors of metabolism and efflux alongside a panel of clinically approved antibiotics in synergy studies. Through these investigations, we determined that promysalin can work synergistically with vancomycin and antagonistically with aminoglycosides and a glyoxylate shunt pathway inhibitor at subinhibitory concentrations; however, these cooperative effects do not reduce minimum inhibitory concentrations. The variability of these results underscores the complexity of targeting metabolism for combination therapies in antibiotic development.
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Affiliation(s)
- Martina
M. Golden
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Savannah J. Post
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Renata Rivera
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - William M. Wuest
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
- Emory
Antibiotic Resistance Center, Emory School of Medicine, Emory University, Atlanta, Georgia 30322, United States
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49
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Wu W, Suo Y, Zhao Q, Cai G, Liu Y, Jin W, Mu Y, Zhang B. Inoculum size-insensitive susceptibility determination of urine sample based on in-situ measurement of inducible enzyme activity after 20 min of antibiotic exposure. Anal Chim Acta 2023; 1282:341858. [PMID: 37923403 DOI: 10.1016/j.aca.2023.341858] [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: 07/29/2023] [Revised: 09/28/2023] [Accepted: 09/28/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND The empirical antibiotic therapies for bacterial infections cause the emergence and propagation of multi-drug resistant bacteria, which not only impair the effectiveness of existing antibiotics but also raise healthcare costs. To reduce the empirical treatments, rapid antimicrobial susceptibility testing (AST) of causative microorganisms in clinical samples should be conducted for prescribing evidence-based antibiotics. However, most of culture-based ASTs suffer from inoculum effect and lack differentiation of target pathogen and commensals, hampering their adoption for evidence-based antibiotic prescription. Therefore, rapid ASTs which can specifically determine pathogens' susceptibilities, regardless of the bacterial load in clinical samples, are in urgent need. RESULTS We present a pathogen-specific and inoculum size-insensitive AST to achieve the reliable susceptibility determination on Escherichia coli (E. coli) in urine samples. The developed AST is featured with an 1 h sample-to-result workflow in a filter, termed on-filter AST. The AST results can be obtained by using an inducible enzymatic assay to in-situ measure the cell response of E. coli collected from urine after 20 min of antibiotic exposure. The calculated detection limit of our AST (1.95 × 104 CFU/mL) is much lower than the diagnosis threshold of urinary tract infections. The specific expression of the inducible enzyme enables on-filter AST to correctly profile the susceptibilities of target pathogen to multi-type antibiotics without the interference from commensals. We performed the on-filter AST on 1 mL urine samples with bacterial loads varying from 105 CFU/mL to 107 CFU/mL and compared the results to that of standard method, demonstrating its insensitivity to inoculum size. SIGNIFICANCE The developed AST is demonstrated to be of high sensitivity, specificity, and insensitive to inoculum size. With further developments for additional bacteria and clinical validation, on-filter AST is promising as a rapid and reliable surrogate of culture-based AST to promote the evidence-based prescription at the first visit and minimize the emergency of new multi-drug resistant microorganisms.
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Affiliation(s)
- Wenshuai Wu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310027, China
| | - Yuanjie Suo
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310027, China
| | - Qianbin Zhao
- Center of Health Science and Engineering, Hebei Key Laboratory of Biomaterials and Smart Theranostics, Hebei University of Technology, Tianjin, 300131, China
| | - Gaozhe Cai
- School of Microelectronics, Shanghai University, Shanghai, 200444, China
| | - Yang Liu
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, 102401, China
| | - Wei Jin
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310027, China; Huzhou Institute of Zhejiang University, Huzhou, 313002, China
| | - Ying Mu
- Research Center for Analytical Instrumentation, Institute of Cyber-Systems and Control, State Key Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, 310027, China.
| | - Boran Zhang
- State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing, 210098, China.
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50
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Garba Z, Bonkoungou IOJ, Millogo NO, Natama HM, Vokouma PAP, Bonko MDA, Karama I, Tiendrebeogo LAW, Haukka K, Tinto H, Sangaré L, Barro N. Wastewater from healthcare centers in Burkina Faso is a source of ESBL, AmpC-β-lactamase and carbapenemase-producing Escherichia coli and Klebsiella pneumoniae. BMC Microbiol 2023; 23:351. [PMID: 37978428 PMCID: PMC10655474 DOI: 10.1186/s12866-023-03108-0] [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: 01/03/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Extended-spectrum β-lactamase (ESBL), plasmid-mediated AmpC-β-lactamase and carbapenemase-producing Escherichia coli and Klebsiella pneumoniae have spread into the environment worldwide posing a potential public health threat. However, the prevalence data for low- and middle-income countries are still scarce. The aim of this study was to evaluate the presence of ESBL, AmpC-β-lactamase and carbapenemase-producing and multidrug-resistant E. coli and K. pneumoniae in wastewaters from healthcare centers in Burkina Faso. RESULTS Eighty-four (84) wastewater samples were collected from five healthcare centers and plated on selective ESBL ChromAgar. E. coli and Klebsiella pneumoniae isolates were identified using API20E. ESBL-producing bacteria were detected in 97.6% of the samples and their average concentration per hospital ranged from 1.10 × 105 to 5.23 × 106 CFU/mL. Out of 170 putative ESBL-producing isolates (64% of them were E. coli) and 51 putative AmpC-β-lactamase-producing isolates, 95% and 45% were confirmed, respectively. Carbapenemase production was detected in 10 isolates, of which 6 were NDM producers, 3 were OXA-48 producers and 1 was NDM and OXA-48 producer. All isolates were multidrug resistant and, moreover, all of them were resistant to all tested β-lactams. Resistance to ESBL inhibitors was also common, up to 66% in E. coli and 62% in K. pneumoniae. Amikacin, fosfomycin and nitrofurantoin were the antibiotics to which the least resistance was detected. CONCLUSIONS This study showed that wastewater from healthcare centers constitutes a reservoir of multidrug-resistant bacteria in Burkina Faso, including carbapenemase producers. Untreated healthcare wastewater entering the environment exposes people and animals to infections caused by these multi-resistant bacteria, which are difficult to treat, especially in the resource-poor settings.
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Affiliation(s)
- Zakaria Garba
- Department of Biochemistry and Microbiology, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso.
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso.
| | - Isidore O J Bonkoungou
- Department of Biochemistry and Microbiology, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - Nadège O Millogo
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso
| | - H Magloire Natama
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso
| | - Pingdwendé A P Vokouma
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso
| | - Massa Dit A Bonko
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso
| | - Ibrahima Karama
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso
| | | | - Kaisa Haukka
- Department of Microbiology and Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - Halidou Tinto
- Clinical Research Unit of Nanoro, Institut de Recherche en Sciences de La Santé, Nanoro, Burkina Faso
| | - Lassana Sangaré
- Department of Health Sciences, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - Nicolas Barro
- Department of Biochemistry and Microbiology, Université Joseph KI-ZERBO, Ouagadougou, Burkina Faso
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