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Srivastava A, Verma N, Kumar V, Apoorva P, Agarwal V. Biofilm inhibition/eradication: exploring strategies and confronting challenges in combatting biofilm. Arch Microbiol 2024; 206:212. [PMID: 38616221 DOI: 10.1007/s00203-024-03938-0] [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: 01/12/2024] [Revised: 03/04/2024] [Accepted: 03/20/2024] [Indexed: 04/16/2024]
Abstract
Biofilms are complex communities of microorganisms enclosed in a self-produced extracellular matrix, posing a significant threat to different sectors, including healthcare and industry. This review provides an overview of the challenges faced due to biofilm formation and different novel strategies that can combat biofilm formation. Bacteria inside the biofilm exhibit increased resistance against different antimicrobial agents, including conventional antibiotics, which can lead to severe problems in livestock and animals, including humans. In addition, biofilm formation also imposes heavy economic pressure on industries. Hence it becomes necessary to explore newer alternatives to eradicate biofilms effectively without applying selection pressure on the bacteria. Excessive usage of antibiotics may also lead to an increase in the number of resistant strains as bacteria employ an advanced antimicrobial resistance mechanism. This review provides insight into multifaceted technologies like quorum sensing inhibition, enzymes, antimicrobial peptides, bacteriophage, phytocompounds, and nanotechnology to neutralize biofilms without developing antimicrobial resistance (AMR). Furthermore, it will pave the way for developing newer therapeutic agents to deal with biofilms more efficiently.
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Affiliation(s)
- Anmol Srivastava
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, Uttar Pradesh, India
| | - Nidhi Verma
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, Uttar Pradesh, India
| | - Vivek Kumar
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, Uttar Pradesh, India
| | - Pragati Apoorva
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, Uttar Pradesh, India
| | - Vishnu Agarwal
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, 211004, Uttar Pradesh, India.
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Spesia MB, Durantini EN. Photosensitizers combination approach to enhance photodynamic inactivation of planktonic and biofilm bacteria. Photochem Photobiol Sci 2023; 22:2433-2444. [PMID: 37490212 DOI: 10.1007/s43630-023-00461-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 07/14/2023] [Indexed: 07/26/2023]
Abstract
To improve bacterial photodynamic inactivation (PDI), this work analyzes the photodynamic effect caused by the combination of photosensitizers (PSs) on two bacterial models and different growth mode. Simultaneous administration of PSs from different families, zinc(II) 2,9,16,23-tetrakis[4-(N-methylpyridyloxy)]phthalocyanine (ZnPPc4+), 5,10,15,20-tetra(4-N,N,N-trimethylammonium phenyl)porphyrin (TMAP4+), meso-tetrakis(9-ethyl-9-methyl-3-carbazoyl)chlorin (TEMCC4+) and 5,10,15,20-tetrakis[4-(3-N,N-dimethylaminopropoxy)phenyl] chlorin (TAPC) was investigated against Staphylococcus aureus and Escherichia coli, in planktonic form, biofilm and growth curve. Various PSs combinations showed greater inactivation compared to when used separately under the same conditions but at twice the concentration. However, differences were found in the effectiveness of the PSs combinations on Gram positive and negative bacteria, as well as in planktonic or biofilm form. Likewise, the combination of three PSs completely stopped E. coli growth under optimal nutritional conditions. PSs combination allows extending the range of light absorption by agents that absorb in different areas of the visible spectrum. Therefore, PDI with combined PSs increases its antimicrobial capacity using agents' concentrations and light fluences lower than those necessary to cause the same effect as single PS. These advances represent a starting point for future research on the potentiation of PDI promoted by the combined use of PSs.
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Affiliation(s)
- Mariana B Spesia
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina.
| | - Edgardo N Durantini
- IDAS-CONICET, Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta Nacional 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
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Master NG, Markande AR. Importance of microbial amphiphiles: interaction potential of biosurfactants, amyloids, and other exo-polymeric-substances. World J Microbiol Biotechnol 2023; 39:320. [PMID: 37747579 DOI: 10.1007/s11274-023-03751-9] [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: 02/01/2023] [Accepted: 09/04/2023] [Indexed: 09/26/2023]
Abstract
Microorganisms produce a diverse group of biomolecules having amphipathic nature (amphiphiles). Microbial amphiphiles, including amyloids, bio-surfactants, and other exo-polymeric substances, play a crucial role in various biological processes and have gained significant attention recently. Although diverse in biochemical composition, these amphiphiles have been reported for common microbial traits like biofilm formation and pathogenicity due to their ability to act as surface active agents with active interfacial properties essential for microbes to grow in various niches. This enables microbes to reduce surface tension, emulsification, dispersion, and attachment at the interface. In this report, the ecological importance and biotechnological usage of important amphiphiles have been discussed. The low molecular weight amphiphiles like biosurfactants, siderophores, and peptides showing helical and antimicrobial activities have been extensively reported for their ability to work as quorum-sensing mediators. While high molecular weight amphiphiles make up amyloid fibers, exopolysaccharides, liposomes, or magnetosomes have been shown to have a significant influence in deciding microbial physiology and survival. In this report, we have discussed the functional similarities and biochemical variations of several amphipathic biomolecules produced by microbes, and the present report shows these amphiphiles showing polyphyletic and ecophysiological groups of microorganisms and hence can `be replaced in biotechnological applications depending on the compatibility of the processes.
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Affiliation(s)
- Nishita G Master
- Department of Biological Sciences, P.D. Patel Institute of Applied Sciences (PDPIAS), Charotar University of Science and Technology (CHARUSAT), Changa, Anand, Gujarat, 388421, India
| | - Anoop R Markande
- Department of Biological Sciences, P.D. Patel Institute of Applied Sciences (PDPIAS), Charotar University of Science and Technology (CHARUSAT), Changa, Anand, Gujarat, 388421, India.
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Rudnick W, Conly J, Thirion DJG, Choi K, Pelude L, Cayen J, Bautista J, Beique L, Comeau JL, Dalton B, Delport J, Dhami R, Embree J, Émond Y, Evans G, Frenette C, Fryters S, Happe J, Katz K, Kibsey P, Langley JM, Lee BE, Lefebvre MA, Leis JA, McGeer A, McKenna S, Neville HL, Slayter K, Suh KN, Tse-Chang A, Weiss K, Science M. Antimicrobial use among paediatric inpatients at hospital sites within the Canadian Nosocomial Infection Surveillance Program, 2017/2018. Antimicrob Resist Infect Control 2023; 12:35. [PMID: 37072874 PMCID: PMC10111695 DOI: 10.1186/s13756-023-01219-x] [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: 05/11/2022] [Accepted: 02/16/2023] [Indexed: 04/20/2023] Open
Abstract
BACKGROUND Antimicrobial resistance threatens the ability to successfully prevent and treat infections. While hospital benchmarks regarding antimicrobial use (AMU) have been well documented among adult populations, there is less information from among paediatric inpatients. This study presents benchmark rates of antimicrobial use (AMU) for paediatric inpatients in nine Canadian acute-care hospitals. METHODS Acute-care hospitals participating in the Canadian Nosocomial Infection Surveillance Program submitted annual AMU data from paediatric inpatients from 2017 and 2018. All systemic antimicrobials were included. Data were available for neonatal intensive care units (NICUs), pediatric ICUs (PICUs), and non-ICU wards. Data were analyzed using days of therapy (DOT) per 1000 patient days (DOT/1000pd). RESULTS Nine hospitals provided paediatric AMU data. Data from seven NICU and PICU wards were included. Overall AMU was 481 (95% CI 409-554) DOT/1000pd. There was high variability in AMU between hospitals. AMU was higher on PICU wards (784 DOT/1000pd) than on non-ICU (494 DOT/1000pd) or NICU wards (333 DOT/1000pd). On non-ICU wards, the antimicrobials with the highest use were cefazolin (66 DOT/1000pd), ceftriaxone (59 DOT/1000pd) and piperacillin-tazobactam (48 DOT/1000pd). On PICU wards, the antimicrobials with the highest use were ceftriaxone (115 DOT/1000pd), piperacillin-tazobactam (115 DOT/1000pd), and cefazolin (111 DOT/1000pd). On NICU wards, the antimicrobials with the highest use were ampicillin (102 DOT/1000pd), gentamicin/tobramycin (78 DOT/1000pd), and cefotaxime (38 DOT/1000pd). CONCLUSIONS This study represents the largest collection of antimicrobial use data among hospitalized paediatric inpatients in Canada to date. In 2017/2018, overall AMU was 481 DOT/1000pd. National surveillance of AMU among paediatric inpatients is necessary for establishing benchmarks and informing antimicrobial stewardship efforts.
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Affiliation(s)
- Wallis Rudnick
- Public Health Agency of Canada, 130 Colonnade Rd, Ottawa, ON, K2E 7L9, Canada
| | - John Conly
- University of Calgary, 3330 Hospital Dr NW, Calgary, AB, T2N 4N1, Canada
- Foothills Medical Centre, Alberta Health Services, 3330 Hospital Dr. NW, Calgary, AB, T2N 2T9, Canada
| | - Daniel J G Thirion
- Université de Montréal, 2900 Boulevard Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
- McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC, H4A 3J1, Canada
| | - Kelly Choi
- Public Health Agency of Canada, 130 Colonnade Rd, Ottawa, ON, K2E 7L9, Canada
| | - Linda Pelude
- Public Health Agency of Canada, 130 Colonnade Rd, Ottawa, ON, K2E 7L9, Canada
| | - Joelle Cayen
- Public Health Agency of Canada, 130 Colonnade Rd, Ottawa, ON, K2E 7L9, Canada
| | - John Bautista
- Central Newfoundland Regional Health Centre, 50 Union, Grand Falls-Windsor, NL, A2A 2E1, Canada
| | - Lizanne Beique
- Public Health Agency of Canada, 130 Colonnade Rd, Ottawa, ON, K2E 7L9, Canada
| | | | - Bruce Dalton
- Alberta Health Services, 1620 29 St NW, Calgary, AB, T2N 4L7, Canada
| | - Johan Delport
- London Health Sciences Centre, 800 Commissioners Rd E, London, ON, N6A 5W9, Canada
| | - Rita Dhami
- London Health Sciences Centre, 800 Commissioners Rd E, London, ON, N6A 5W9, Canada
- University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
- University of Western Ontario, 1151 Richmond St, London, ON, N6A 3K7, Canada
| | - Joanne Embree
- University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
- Shared Health Manitoba, Winnipeg, MB, R3T 2N2, Canada
- Children's Hospital Winnipeg, 840 Sherbrook St, Winnipeg, MB, R3E 0Z3, Canada
| | - Yannick Émond
- Hôpital Maisonneuve-Rosemont, 5415 Boulevard de l'Assomption, Montréal, QC, H1T 2M4, Canada
| | - Gerald Evans
- Kingston Health Sciences Centre, 76 Stuart St, Kingston, ON, K7L 2V7, Canada
| | - Charles Frenette
- McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC, H4A 3J1, Canada
| | - Susan Fryters
- Alberta Health Services, 10240 Kingsway Avenue, Edmonton, AB, T5H 3V9, Canada
| | - Jennifer Happe
- Infection Prevention and Control Canada, Red Deer, AB, T4N 6R2, Canada
| | - Kevin Katz
- North York General Hospital, 4001 Leslie St, North York, ON, M2K 1E1, Canada
| | - Pamela Kibsey
- Royal Jubilee Hospital, 1952 Bay St, Victoria, BC, V8R 1J8, Canada
| | - Joanne M Langley
- IWK Health Centre, 5980 University Ave, Halifax, NS, B3K 6R8, Canada
- Dalhousie University, 6299 South St, Halifax, NS, B3H 4R2, Canada
| | - Bonita E Lee
- Stollery Children's Hospital, Edmonton, AB, T6G 2B7, Canada
- University of Alberta, Edmonton, AB, T6G 2R7, Canada
| | - Marie-Astrid Lefebvre
- McGill University Health Centre, 1001 Boulevard Décarie, Montréal, QC, H4A 3J1, Canada
| | - Jerome A Leis
- Department of Medicine, University of Toronto, 1 King's College Cir, Toronto, ON, M5S 1A8, Canada
- Sunnybrook Health Sciences Centre, 2075 Bayview Ave, Toronto, ON, M4N 3M5, Canada
| | - Allison McGeer
- Sinai Health System, 600 University Ave, Toronto, ON, M5G 1X5, Canada
- University of Toronto, 27 King's College Cir, Toronto, ON, M5S 1A1, Canada
- Dalla Lana School of Public Health, University of Toronto, 155 College St, Toronto, ON, M5T 3M7, Canada
| | - Susan McKenna
- Kingston Health Sciences Centre, 76 Stuart St, Kingston, ON, K7L 2V7, Canada
| | - Heather L Neville
- Nova Scotia Health, 1276 South Park St, Halifax, NS, B3H 2Y9, Canada
| | - Kathryn Slayter
- IWK Health Centre, 5980 University Ave, Halifax, NS, B3K 6R8, Canada
| | - Kathryn N Suh
- The Ottawa Hospital, 501 Smyth Rd, Ottawa, ON, K1H 8L6, Canada
| | - Alena Tse-Chang
- Stollery Children's Hospital, Edmonton, AB, T6G 2B7, Canada
- University of Alberta, Edmonton, AB, T6G 2R7, Canada
| | - Karl Weiss
- SMBD-Jewish General Hospital, 3755 Chemin de la Côte-Sainte-Catherine, Montréal, QC, H3T 1E2, Canada
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Chen H, Mai H, Lopes B, Wen F, Patil S. Novel Pseudomonas aeruginosa Strains Co-Harbouring blaNDM-1 Metallo β-Lactamase and mcr-1 Isolated from Immunocompromised Paediatric Patients. Infect Drug Resist 2022; 15:2929-2936. [PMID: 35706928 PMCID: PMC9189156 DOI: 10.2147/idr.s368566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/27/2022] [Indexed: 12/13/2022] Open
Abstract
Background The rising resistance to carbapenems in Gram-negative bacteria worldwide poses a major clinical and public health risk. This study aimed to characterise carbapenem- and colistin-resistance genes, blaNDM-1 and mcr-1 located on IncX4 plasmid in MDR Pseudomonas aeruginosa, isolated from paediatric patients undergoing chemotherapy as a result of leukaemia. Methods In this study, six carbapenem-resistant strains of P. aeruginosa were isolated from two paediatric patients under chemotherapy treatment (1.8 years old female and 2.1 years male) from the Shenzhen Hospital, China, in the year 2019. Isolates were screened for conventional antibiotics such as tobramycin, cefepime, imipenem, and ciprofloxacin in additional colistin by using the broth dilution method. Furthermore, resistance determinants: mcr-1, blaNDM-1,blaKPC-1, and blaGES were screened using PCR and sequencing followed by multi-locus sequence typing. The horizontal gene transfer and location of mcr-1 and blaNDM-1 were determined by a liquid mating assay. In addition, Incompatibility type (Inc), PCR-based replicon type, and subgroup (MOB) of plasmid were studied. Results The screening for conventional antibiotics isolates showed 100% resistance to all the tested antibiotics except tobramycin. All isolates harboured carbapenemase encoding blaNDM-1, of which three also had mcr-1 located on a single IncX4 transferable plasmid. MLST typing revealed that four strains had a novel (new) STs type, while two belonged to ST1966. Conclusion This study identified for the first time colistin- and carbapenem-resistant MDR P. aeruginosa in paediatric patients with leukaemia in Shenzhen, China. It highlights the need for continuous surveillance in high-risk clones of MDR P. aeruginosa. Prudent use of antibiotics based on local antimicrobial susceptibility and clinical characteristics can help in reducing mortality in immunocompromised patients. ![]()
Point your SmartPhone at the code above. If you have a QR code reader the video abstract will appear. Or use: https://youtu.be/YzFjqeJsNSs
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Affiliation(s)
- Hongyu Chen
- Department of Laboratory Medicine, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China
| | - Huirong Mai
- Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China
| | - Bruno Lopes
- Department of Microbiology, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK
| | - Feiqiu Wen
- Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China
- Feiqiu Wen, Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China, Tel +86-18938690333, Fax +86-755-83009888, Email
| | - Sandip Patil
- Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China
- Paediatric Research Institute, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China
- Correspondence: Sandip Patil, Department of Haematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, 518038, People’s Republic of China, Tel +86-18813934471, Fax +86-755-83008283, Email
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Charitos IA, Ballini A, Bottalico L, Cantore S, Passarelli PC, Inchingolo F, D'Addona A, Santacroce L. Special features of SARS-CoV-2 in daily practice. World J Clin Cases 2020; 8:3920-3933. [PMID: 33024749 PMCID: PMC7520789 DOI: 10.12998/wjcc.v8.i18.3920] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/31/2020] [Accepted: 09/01/2020] [Indexed: 02/05/2023] Open
Abstract
The severe acute respiratory syndrome-coronavirus-2 (commonly known as SARS-CoV-2) is a novel coronavirus (designated as 2019-nCoV), which was isolated for the first time after the Chinese health authorities reported a cluster of pneumonia cases in Wuhan, China in December 2019. Optimal management of the Coronavirus Disease-2019 disease is evolving quickly and treatment guidelines, based on scientific evidence and experts' opinions with clinical experience, are constantly being updated. On January 30, 2020, the World Health Organization declared the SARS-CoV-2 outbreak as a "Public Health Emergency of International Concern". The total lack of immune protection brought about a severe spread of the contagion all over the world. For this reason, diagnostic tools, patient management and therapeutic approaches have been tested along the way, in the desperate race to break free from the widespread infection and its fatal respiratory complications. Current medical knowledge and research on severe and critical patients' management and experimental treatments are still evolving, but several protocols on minimizing risk of infection among the general population, patients and healthcare workers have been approved and diffused by International Health Authorities.
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Affiliation(s)
- Ioannis A Charitos
- Department of Emergency and Urgency, National Poisoning Centre, Riuniti University Hospital of Foggia, Foggia 71122, Italy
| | - Andrea Ballini
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University Campus "E. Quagliariello", University of Bari “Aldo Moro”, Bari 70125, Italy
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples 80138, Italy
| | - Lucrezia Bottalico
- Interdepartmental Research Center for Pre-Latin, Latin and Oriental Rights and Culture Studies (CEDICLO), University of Bari, Bari 70121, Italy
| | - Stefania Cantore
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, Bari 70124, Italy
- Sorriso & Benessere - Ricerca e Clinica S.R.L, Bari 70129, Italy
| | - Pier Carmine Passarelli
- Department of Head, Neck and Sense Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome 00168, Italy
| | - Francesco Inchingolo
- Department of Interdisciplinary Medicine, Section of Dental Medicine, University of Bari “Aldo Moro”, Bari 70124, Italy
| | - Antonio D'Addona
- Department of Head and Neck and Sensory Organs, Division of Oral Surgery and Implantology, Fondazione Policlinico Universitario A. Gemelli IRCCS — Università Cattolica del Sacro Cuore, Roma 00168, Italy
| | - Luigi Santacroce
- Interdepartmental Research Center for Pre-Latin, Latin and Oriental Rights and Culture Studies (CEDICLO), University of Bari, Bari 70121, Italy
- Ionian Department, Microbiology and Virology Laboratory, Policlinico University Hospital, University of Bari “Aldo Moro”, Bari 70124, Italy
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