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Su X, Li B, Chen S, Wang X, Song H, Shen B, Zheng Q, Yang M, Yue P. Pore engineering of micro/mesoporous nanomaterials for encapsulation, controlled release and variegated applications of essential oils. J Control Release 2024; 367:107-134. [PMID: 38199524 DOI: 10.1016/j.jconrel.2024.01.005] [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: 07/20/2023] [Revised: 12/09/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Essential oils have become increasingly popular in fields of medical, food and agriculture, owing to their strongly antimicrobial, anti-inflammation and antioxidant effects, greatly meeting demand from consumers for healthy and safe natural products. However, the easy volatility and/or chemical instability of active ingredients of essential oils (EAIs) can result in the loss of activity before realizing their functions, which have greatly hindered the widely applications of EAIs. As an emerging trend, micro/mesoporous nanomaterials (MNs) have drawn great attention for encapsulation and controlled release of EAIs, owing to their tunable pore structural characteristics. In this review, we briefly discuss the recent advances of MNs that widely used in the controlled release of EAIs, including zeolites, metal-organic frameworks (MOFs), mesoporous silica nanomaterials (MSNs), and provide a comprehensive summary focusing on the pore engineering strategies of MNs that affect their controlled-release or triggered-release for EAIs, including tailorable pore structure properties (e.g., pore size, pore surface area, pore volume, pore geometry, and framework compositions) and surface properties (surface modification and surface functionalization). Finally, the variegated applications and potential challenges are also given for MNs based delivery strategies for EAIs in the fields of healthcare, food and agriculture. These will provide considerable instructions for the rational design of MNs for controlled release of EAIs.
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Affiliation(s)
- Xiaoyu Su
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Biao Li
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Shuiyan Chen
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Xinmin Wang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Hao Song
- Australian Institute for Bioengineering and Nanotechnology, the University of Queensland, Brisbane 4072, Australia
| | - Baode Shen
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Qin Zheng
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China
| | - Pengfei Yue
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang 330004, China.
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Allemailem KS. Recent Advances in Understanding the Molecular Mechanisms of Multidrug Resistance and Novel Approaches of CRISPR/Cas9-Based Genome-Editing to Combat This Health Emergency. Int J Nanomedicine 2024; 19:1125-1143. [PMID: 38344439 PMCID: PMC10859101 DOI: 10.2147/ijn.s453566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 01/26/2024] [Indexed: 02/15/2024] Open
Abstract
The rapid spread of multidrug resistance (MDR), due to abusive use of antibiotics has led to global health emergency, causing substantial morbidity and mortality. Bacteria attain MDR by different means such as antibiotic modification/degradation, target protection/modification/bypass, and enhanced efflux mechanisms. The classical approaches of counteracting MDR bacteria are expensive and time-consuming, thus, it is highly significant to understand the molecular mechanisms of this resistance to curb the problem from core level. The revolutionary approach of clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated sequence 9 (CRISPR/Cas9), considered as a next-generation genome-editing tool presents an innovative opportunity to precisely target and edit bacterial genome to alter their MDR strategy. Different bacteria possessing antibiotic resistance genes such as mecA, ermB, ramR, tetA, mqrB and blaKPC that have been targeted by CRISPR/Cas9 to re-sensitize these pathogens against antibiotics, such as methicillin, erythromycin, tigecycline, colistin and carbapenem, respectively. The CRISPR/Cas9 from S. pyogenes is the most widely studied genome-editing tool, consisting of a Cas9 DNA endonuclease associated with tracrRNA and crRNA, which can be systematically coupled as sgRNA. The targeting strategies of CRISPR/Cas9 to bacterial cells is mediated through phage, plasmids, vesicles and nanoparticles. However, the targeting approaches of this genome-editing tool to specific bacteria is a challenging task and still remains at a very preliminary stage due to numerous obstacles awaiting to be solved. This review elaborates some recent updates about the molecular mechanisms of antibiotic resistance and the innovative role of CRISPR/Cas9 system in modulating these resistance mechanisms. Furthermore, the delivery approaches of this genome-editing system in bacterial cells are discussed. In addition, some challenges and future prospects are also described.
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Affiliation(s)
- Khaled S Allemailem
- Department of Medical Laboratories, College of Applied Medical Sciences, Qassim University, Buraydah51452, Saudi Arabia
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Fufa DB, Diriba TA, Dame KT, Debusho LK. Competing risk models to evaluate the factors for time to loss to follow-up among tuberculosis patients at Ambo General Hospital. Arch Public Health 2023; 81:117. [PMID: 37357257 DOI: 10.1186/s13690-023-01130-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 06/07/2023] [Indexed: 06/27/2023] Open
Abstract
BACKGROUND A major challenge for most tuberculosis programs is the inability of tuberculosis patients to complete treatment for one reason or another. Failure to complete the treatment contributes to the emergence of multidrug-resistant TB. This study aimed to evaluate the risk factors for time to loss to follow-up treatment by considering death as a competing risk event among tuberculosis patients admitted to directly observed treatment short course at Ambo General Hospital, Ambo, Ethiopia. METHODS Data collected from 457 tuberculosis patients from January 2018 to January 2022 were used for the analysis. The cause-specific hazard and sub-distribution hazard models for competing risks were used to model the outcome of interest and to identify the prognostic factors associated to treatment loss to follow-up. Loss to follow-up was used as an outcome measure and death as a competing event. RESULTS Of the 457 tuberculosis patients enrolled, 54 (11.8%) were loss to follow-up their treatment and 33 (7.2%) died during the follow up period. The median time of loss to follow-up starting from the date of treatment initiation was 4.2 months. The cause-specific hazard and sub-distribution hazard models revealed that sex, place of residence, HIV status, contact history, age and baseline weights of patients were significant risk factors associated with time to loss to follow-up treatment. The findings showed that the estimates of the covariates effects were different for the cause specific and sub-distribution hazard models. The maximum relative difference observed for the covariate between the cause specific and sub-distribution hazard ratios was 12.2%. CONCLUSIONS Patients who were male, rural residents, HIV positive, and aged 41 years or older were at higher risk of loss to follow-up their treatment. This underlines the need that tuberculosis patients, especially those in risk categories, be made aware of the length of the directly observed treatment short course and the effects of discontinuing treatment.
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Affiliation(s)
- Daba Bulto Fufa
- Department of Statistics, College of Natural Sciences, Jimma University, Jimma, Ethiopia
- Current address: Department of Statistics, Assosa University, Assosa, Ethiopia
| | - Tadele Akeba Diriba
- Department of Statistics, College of Natural Sciences, Jimma University, Jimma, Ethiopia.
| | - Kenenisa Tadesse Dame
- Department of Statistics, College of Natural Sciences, Jimma University, Jimma, Ethiopia
| | - Legesse Kassa Debusho
- Department of Statistics, College of Science, Engineering and Technology, University of South Africa, Christian de Wet Road and Pioneer Avenue, Private Bag X6 Florida, 1710, Johannesburg, South Africa
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Gifford DR, Berríos-Caro E, Joerres C, Suñé M, Forsyth JH, Bhattacharyya A, Galla T, Knight CG. Mutators can drive the evolution of multi-resistance to antibiotics. PLoS Genet 2023; 19:e1010791. [PMID: 37311005 DOI: 10.1371/journal.pgen.1010791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 05/18/2023] [Indexed: 06/15/2023] Open
Abstract
Antibiotic combination therapies are an approach used to counter the evolution of resistance; their purported benefit is they can stop the successive emergence of independent resistance mutations in the same genome. Here, we show that bacterial populations with 'mutators', organisms with defects in DNA repair, readily evolve resistance to combination antibiotic treatment when there is a delay in reaching inhibitory concentrations of antibiotic-under conditions where purely wild-type populations cannot. In populations of Escherichia coli subjected to combination treatment, we detected a diverse array of acquired mutations, including multiple alleles in the canonical targets of resistance for the two drugs, as well as mutations in multi-drug efflux pumps and genes involved in DNA replication and repair. Unexpectedly, mutators not only allowed multi-resistance to evolve under combination treatment where it was favoured, but also under single-drug treatments. Using simulations, we show that the increase in mutation rate of the two canonical resistance targets is sufficient to permit multi-resistance evolution in both single-drug and combination treatments. Under both conditions, the mutator allele swept to fixation through hitch-hiking with single-drug resistance, enabling subsequent resistance mutations to emerge. Ultimately, our results suggest that mutators may hinder the utility of combination therapy when mutators are present. Additionally, by raising the rates of genetic mutation, selection for multi-resistance may have the unwanted side-effect of increasing the potential to evolve resistance to future antibiotic treatments.
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Affiliation(s)
- Danna R Gifford
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
- Department of Earth and Environmental Sciences, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom
| | - Ernesto Berríos-Caro
- Department of Physics and Astronomy, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom
- Department of Evolutionary Theory, Max Planck Institute for Evolutionary Biology, Plön, Germany
- Department of Evolutionary Ecology and Genetics, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Christine Joerres
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Marc Suñé
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Jessica H Forsyth
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Anish Bhattacharyya
- Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Tobias Galla
- Department of Physics and Astronomy, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom
- Instituto de Física Interdisciplinar y Sistemas Complejos, IFISC (CSIC-UIB), Campus Universitat Illes Balears, Palma de Mallorca, Spain
| | - Christopher G Knight
- Department of Earth and Environmental Sciences, School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom
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Fernandes M, González-Ballesteros N, da Costa A, Machado R, Gomes AC, Rodríguez-Argüelles MC. Antimicrobial and anti-biofilm activity of silver nanoparticles biosynthesized with Cystoseira algae extracts. J Biol Inorg Chem 2023; 28:439-450. [PMID: 37083842 PMCID: PMC10149473 DOI: 10.1007/s00775-023-01999-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 04/06/2023] [Indexed: 04/22/2023]
Abstract
Antimicrobial resistance is an ever-growing global concern to public health with no clear or immediate solution. Silver nanoparticles (AgNPs) have long been proposed as efficient agents to fight the growing number of antibiotic-resistant strains. However, the synthesis of these particles is often linked to high costs and the use of toxic, hazardous chemicals, with environmental and health impact. In this study, we successfully produced AgNPs by green synthesis with the aid of the extract of two brown algae-Cystoseira baccata (CB) and Cystoseira tamariscifolia (CT)-and characterized their physico-chemical properties. The NPs produced in both cases (Ag@CB and Ag@CT) present similar sizes, with mean diameters of around 22 nm. The antioxidant activity of the extracts and the NPs was evaluated, with the extracts showing important antioxidant activity. The bacteriostatic and bactericidal properties of both Ag@CB and Ag@CT were tested and compared with gold NPs produced in the same algae extracts as previously reported. AgNPs demonstrated the strongest bacteriostatic and bactericidal properties, at concentrations as low as 2.16 µg/mL against Pseudomonas aeruginosa and Escherichia coli. Finally, the capacity of these samples to prevent the formation of biofilms characteristic of infections with a poorer outcome was assessed, obtaining similar results. This work points towards an alternative for the treatment of bacterial infections, even biofilm-inducing, with the possibility of minimizing the risk of drug resistance, albeit the necessary caution implied using metallic NPs.
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Affiliation(s)
- Mário Fernandes
- Centre of Molecular and Environmental Biology (CBMA)/Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Sustainability (IB-S), Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | | | - André da Costa
- Centre of Molecular and Environmental Biology (CBMA)/Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Sustainability (IB-S), Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Raúl Machado
- Centre of Molecular and Environmental Biology (CBMA)/Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Sustainability (IB-S), Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Andreia C Gomes
- Centre of Molecular and Environmental Biology (CBMA)/Aquatic Research Network (ARNET) Associate Laboratory, Department of Biology, Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
- Institute of Science and Innovation for Sustainability (IB-S), Universidade do Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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Boiten KE, Kuijper EJ, Schuele L, van Prehn J, Bode LGM, Maat I, van Asten SAV, Notermans DW, Rossen JWA, Veloo ACM. Characterization of mobile genetic elements in multidrug-resistant Bacteroides fragilis isolates from different hospitals in the Netherlands. Anaerobe 2023; 81:102722. [PMID: 37001724 DOI: 10.1016/j.anaerobe.2023.102722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023]
Abstract
OBJECTIVES Five human clinical multidrug-resistant (MDR) Bacteroides fragilis isolates, including resistance to meropenem and metronidazole, were recovered at different hospitals in the Netherlands between 2014 and 2020 and sent to the anaerobic reference laboratory for full characterization. METHODS Isolates were recovered from a variety of clinical specimens from patients with unrelated backgrounds. Long- and short-read sequencing was performed, followed by a hybrid assembly to study the presence of mobile genetic elements (MGEs) and antimicrobial resistance genes (ARGs). RESULTS A cfxA gene was present on a transposon (Tn) similar to Tn4555 in two isolates. In two isolates a novel Tn was present with the cfxA gene. Four isolates harbored a nimE gene, located on a pBFS01_2 plasmid. One isolate contained a novel plasmid carrying a nimA gene with IS1168. The tetQ gene was present on novel conjugative transposons (CTns) belonging to the CTnDOT family. Two isolates harbored a novel plasmid with tetQ. Other ARGs in these isolates, but not on an MGE, were: cfiA, ermF, mef(EN2), and sul2. ARGs harboured differed between isolates and corresponded with the observed phenotypic resistance. CONCLUSIONS Novel CTns, Tns, and plasmids were encountered in the five MDR B. fragilis isolates, complementing our knowledge on MDR and horizontal gene transfer in anaerobic bacteria.
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Affiliation(s)
- K E Boiten
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands.
| | - E J Kuijper
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands; Department of Medical Microbiology, Leiden University Center for Infectious Diseases, Leiden University Medical Center (LUMC), Leiden, the Netherlands
| | - L Schuele
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
| | - J van Prehn
- Department of Medical Microbiology, Leiden University Center for Infectious Diseases, Leiden University Medical Center (LUMC), Leiden, the Netherlands
| | - L G M Bode
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center (Erasmus MC), Rotterdam, the Netherlands
| | - I Maat
- Radboud University Medical Center, Department of Medical Microbiology, Nijmegen, the Netherlands
| | - S A V van Asten
- Haga Ziekenhuis, Department of Medical Microbiology, Den Haag, the Netherlands
| | - D W Notermans
- Centre for Infectious Disease Control (CIb), National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - J W A Rossen
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands; Laboratory of Medical Microbiology and Infectious Diseases, Isala Hospital, Zwolle, the Netherlands; Department of Pathology, University of Utah School of Medicine, Salt Lake City, USA
| | - A C M Veloo
- University of Groningen, University Medical Center Groningen, Department of Medical Microbiology and Infection Prevention, Groningen, the Netherlands
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Jha NG, Dkhar DS, Singh SK, Malode SJ, Shetti NP, Chandra P. Engineered Biosensors for Diagnosing Multidrug Resistance in Microbial and Malignant Cells. BIOSENSORS 2023; 13:235. [PMID: 36832001 PMCID: PMC9954051 DOI: 10.3390/bios13020235] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/17/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
To curtail pathogens or tumors, antimicrobial or antineoplastic drugs have been developed. These drugs target microbial/cancer growth and survival, thereby improving the host's health. In attempts to evade the detrimental effects of such drugs, these cells have evolved several mechanisms over time. Some variants of the cells have developed resistances against multiple drugs or antimicrobial agents. Such microorganisms or cancer cells are said to exhibit multidrug resistance (MDR). The drug resistance status of a cell can be determined by analyzing several genotypic and phenotypic changes, which are brought about by significant physiological and biochemical alterations. Owing to their resilient nature, treatment and management of MDR cases in clinics is arduous and requires a meticulous approach. Currently, techniques such as plating and culturing, biopsy, gene sequencing, and magnetic resonance imaging are prevalent in clinical practices for determining drug resistance status. However, the major drawbacks of using these methods lie in their time-consuming nature and the problem of translating them into point-of-care or mass-detection tools. To overcome the shortcomings of conventional techniques, biosensors with a low detection limit have been engineered to provide quick and reliable results conveniently. These devices are highly versatile in terms of analyte range and quantities that can be detected to report drug resistance in a given sample. A brief introduction to MDR, along with a detailed insight into recent biosensor design trends and use for identifying multidrug-resistant microorganisms and tumors, is presented in this review.
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Affiliation(s)
- Niharika G. Jha
- School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Daphika S. Dkhar
- School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Sumit K. Singh
- School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
| | - Shweta J. Malode
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi 580031, Karnataka, India
| | - Nagaraj P. Shetti
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi 580031, Karnataka, India
- University Center for Research & Development (UCRD), Chandigarh University, Mohali 140413, Panjab, India
| | - Pranjal Chandra
- School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi 221005, Uttar Pradesh, India
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Guillén-Chable F, Avila Castro LA, Rodríguez-Escamilla Z, Martínez-Núñez MA. Insights into coastal microbial antibiotic resistome through a meta-transcriptomic approach in Yucatan. Front Microbiol 2022; 13:972267. [PMID: 36325016 PMCID: PMC9618888 DOI: 10.3389/fmicb.2022.972267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/26/2022] [Indexed: 11/21/2022] Open
Abstract
Antibiotic resistance (AR) is one of the greatest human and clinical challenges associated with different pathogenic organisms. However, in recent years it has also become an environmental problem due to the widespread use of antibiotics in humans and livestock activities. The ability to resist antibiotics comes from antibiotic resistance genes (ARGs) and our understanding of their presence in coastal environments is still limited. Therefore, the objective of the present study was to explore the presence and possible differences in the microbial resistome of four sites from the Yucatan coast through the evaluation of the composition and abundance of ARGs using a high-throughput analysis of metatranscriptomic sequences. In total, 3,498 ARGs were uncovered, which participate in the resistance to tetracycline, macrolide, rifamycin, fluoroquinolone, phenicol, aminoglycoside, cephalosporin, and other antibiotics. The molecular mechanisms of these ARGs were mainly efflux pump, antibiotic target alteration and antibiotic target replacement. In the same way, ARGs were detected in the samples but showing dissimilar enrichment levels. With respect to the sampling sites, the ARGs were present in all the samples collected, either from preserved or contaminated areas. Importantly, sediments of the preserved area of Dzilam presented the second highest level of ARGs detected, probably as a consequence of the antibiotics dragged to the coast by submarine groundwater discharge. In general, the resistance to a single antibiotic was greater than multiresistance, both at the level of gene and organisms; and multiresistance in organisms is acquired mainly by recruiting different monoresistance genes. To our knowledge, this is the first study that describes and compares the resistome of different samples of the Yucatan coast. This study contributes to generating information about the current state of antibiotic resistance on the Yucatan coasts for a better understanding of ARGs dissemination and could facilitate the management of ARGs pollution in the environment.
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Affiliation(s)
- Francisco Guillén-Chable
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI)-Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Sisal, Yucatán, Mexico
| | - Luis Alejandro Avila Castro
- Escuela Nacional de Estudios Superiores-Mérida, Universidad Nacional Autónoma de México (UNAM), Ucú, Yucatán, Mexico
| | - Zuemy Rodríguez-Escamilla
- Escuela Nacional de Estudios Superiores-Mérida, Universidad Nacional Autónoma de México (UNAM), Ucú, Yucatán, Mexico
- Zuemy Rodríguez-Escamilla,
| | - Mario Alberto Martínez-Núñez
- Unidad Multidisciplinaria de Docencia e Investigación (UMDI)-Sisal, Facultad de Ciencias, Universidad Nacional Autónoma de México (UNAM), Sisal, Yucatán, Mexico
- Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas (IIMAS), Universidad Nacional Autónoma de México (UNAM), Mérida, Yucatán, Mexico
- *Correspondence: Mario Alberto Martínez-Núñez,
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Krutyakov YA, Khina AG. Bacterial Resistance to Nanosilver: Molecular Mechanisms and Possible Ways to Overcome them. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822050106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Homenta H, Julyadharma J, Susianti H, Noorhamdani N, Santosaningsih D. Molecular Epidemiology of Clinical Carbapenem-Resistant Acinetobacter baumannii-calcoaceticus complex Isolates in Tertiary Care Hospitals in Java and Sulawesi Islands, Indonesia. Trop Med Infect Dis 2022; 7:tropicalmed7100277. [PMID: 36288018 PMCID: PMC9607243 DOI: 10.3390/tropicalmed7100277] [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: 09/08/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 01/24/2023] Open
Abstract
Carbapenem-resistant Acinetobacter baumannii (A. baumannii)-calcoaceticus complex (CRAb-cc) is an important pathogen causing nosocomial infections worldwide; however, molecular epidemiology of the A. baumannii-calcoaceticus complex in Indonesian hospitals is scarce. This study aimed to determine the clonal relatedness of CRAb-cc in two tertiary care hospitals in Malang and Manado in Indonesia. The CRAb-cc isolates from routine clinical cultures in two tertiary care hospitals in Malang and Manado were identified using the Vitek2® system (bioMérieux, Lyon, France). Multi-locus variable-number tandem-repeat analysis (MLVA) typing, multi-locus sequence typing (MLST), clonal complex (CC), and phylogenetic tree analysis were conducted for a subset of isolates. Seventy-three CRAb-cc isolates were collected. The CRAb-cc isolates were frequently found among lower-respiratory-tract specimens. We detected the MLVA type (MT) 1, MT3, and MT4 CRAB-cc isolates belonging to the sequence type (ST) 642, and CC1 was the predominant clone in this study. In conclusion, we identified the clonal relatedness of A. baumannii-calcoaceticus complex isolates in two tertiary care hospitals in Malang and Manado in Indonesia. Further study is required to investigate the clinical importance and distribution of ST642 in Indonesian hospitals for developing prevention and control measures.
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Affiliation(s)
- Heriyannis Homenta
- Doctoral Program in Medical Science, Faculty of Medicine, Universitas Brawijaya, Malang 65145, Indonesia
- Department of Clinical Microbiology, Faculty of Medicine, Sam Ratulangi University, Manado 95163, Indonesia
| | - Julyadharma Julyadharma
- Laboratory of Clinical Microbiology, Prof. Dr. R. D. Kandou Hospital, Manado 95163, Indonesia
| | - Hani Susianti
- Department of Clinical Pathology, Faculty of Medicine, Brawijaya University, Malang 65145, Indonesia
- Department of Clinical Pathology, Dr. Saiful Anwar Hospital, Malang 65112, Indonesia
| | - Noorhamdani Noorhamdani
- Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang 65145, Indonesia
| | - Dewi Santosaningsih
- Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang 65145, Indonesia
- Department of Clinical Microbiology, Dr. Saiful Anwar Hospital, Malang 65112, Indonesia
- Correspondence:
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Meesa S, Meshram SH, Siva B, Misra S, Suresh Babu K. Isolation, purification, and structural elucidation of Mellein from endophytic fungus Lasiodiplodia theobromae strain (SJF-1) and its broad-spectrum antimicrobial and pharmacological properties. Lett Appl Microbiol 2022; 75:1475-1485. [PMID: 36000410 DOI: 10.1111/lam.13813] [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: 06/25/2022] [Revised: 07/28/2022] [Accepted: 08/05/2022] [Indexed: 11/30/2022]
Abstract
In an ongoing investigation of bioactive metabolites producing potential endophytic fungi, the strain Lasiodiplodia theobromae (SJF-1) was isolated from a medicinal plant Syzygium cumini. The cultural, morphological, and molecular identification was done with the SJF-1 strain. The obtained gene sequence was deposited in NCBI with accession number MG 938644. The methanolic extract of SJF-1 strain possessed one major bioactive fraction and it was purified by column chromatography. Further, it was identified as Mellein by various spectroscopic studies (1 H, 13 C, DEPT-135°, FT-IR, ESI-HR-MS, and 2D NMR). Biologically, Mellein showed potent anti-Xanthomonas activity with MIC values ranging from 1.9-62.5 μgml-1 against eleven Xanthomonas strains; a broad-spectrum antimicrobial activity with MIC 7.8-31.25 μgml-1 and 1.9-31.25 μgml-1 towards both bacterial and fungal strains respectively. The SEM analysis proved the anti-microbial efficacy of a Mellein by rupturing the cell walls of Xanthomonas sp. Molecular docking studies further supported that the Mellein showed good binding interactions with the proteins of Xanthomonas sp. to reduce pathogenicity. Further, in silico pharmacological studies showed that this metabolite exhibited high gastrointestinal absorption properties and promising oral drug bioavailability. We report, anti-Xanthomonas, in silico docking, and pharmacological studies of Mellein from (SJF-1) strain for the first time.
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Affiliation(s)
- Saraswathi Meesa
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sneha H Meshram
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Process Engineering and Technology Transfer, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India
| | - Bandi Siva
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, 500007, India
| | - Sunil Misra
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad, 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Katragadda Suresh Babu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.,Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad, 500007, India
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12
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Chinemerem Nwobodo D, Ugwu MC, Oliseloke Anie C, Al-Ouqaili MTS, Chinedu Ikem J, Victor Chigozie U, Saki M. Antibiotic resistance: The challenges and some emerging strategies for tackling a global menace. J Clin Lab Anal 2022; 36:e24655. [PMID: 35949048 PMCID: PMC9459344 DOI: 10.1002/jcla.24655] [Citation(s) in RCA: 94] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/22/2022] [Accepted: 08/01/2022] [Indexed: 11/22/2022] Open
Abstract
Background Antibiotic resistance is currently the most serious global threat to the effective treatment of bacterial infections. Antibiotic resistance has been established to adversely affect both clinical and therapeutic outcomes, with consequences ranging from treatment failures and the need for expensive and safer alternative drugs to the cost of higher rates of morbidity and mortality, longer hospitalization, and high‐healthcare costs. The search for new antibiotics and other antimicrobials continues to be a pressing need in humanity's battle against bacterial infections. Antibiotic resistance appears inevitable, and there is a continuous lack of interest in investing in new antibiotic research by pharmaceutical industries. This review summarized some new strategies for tackling antibiotic resistance in bacteria. Methods To provide an overview of the recent research, we look at some new strategies for preventing resistance and/or reviving bacteria's susceptibility to already existing antibiotics. Results Substantial pieces of evidence suggest that antimicrobials interact with host immunity, leading to potent indirect effects that improve antibacterial activities and may result in more swift and complete bactericidal effects. A new class of antibiotics referred to as immuno‐antibiotics and the targeting of some biochemical resistance pathway components including inhibition of SOS response and hydrogen sulfide as biochemical underlying networks of bacteria can be considered as new emerging strategies to combat antibiotic resistance in bacteria. Conclusion This review highlighted and discussed immuno‐antibiotics and inhibition of SOS response and hydrogen sulfide as biochemical underlying networks of bacteria as new weapons against antibiotic resistance in bacteria.
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Affiliation(s)
- David Chinemerem Nwobodo
- Department of Microbiology, Renaissance University, Enugu, Nigeria.,Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Malachy Chigozie Ugwu
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Clement Oliseloke Anie
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Delta State University Abraka, Abraka, Nigeria
| | | | - Joseph Chinedu Ikem
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria.,Department of Pharmaceutical Microbiology and Biotechnology, Madonna University, Elele, Nigeria
| | - Uchenna Victor Chigozie
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Morteza Saki
- Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Infectious Ophthalmologic Research Center, Imam Khomeini Hospital Clinical Research Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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13
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Antibacterial and Antibiofilm Potency of Menadione Against Multidrug-Resistant S. aureus. Curr Microbiol 2022; 79:282. [PMID: 35934752 DOI: 10.1007/s00284-022-02975-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 07/11/2022] [Indexed: 11/03/2022]
Abstract
Menadione is an analogue of 1,4-naphthoquinone (1,4-NQ) that possesses enormous pharmaceutical potential. The minimum inhibitory concentration (MIC) of menadione was determined against eighteen pathogens of the ESKAPE category, including thirteen multidrug-resistant (MDR) and five standard strains. From a total of eighteen pathogens, five strains of S. aureus (four: MDR and one: Standard strain) were considered further for detailed studies. This study included the determination of minimum bactericidal concentration (MBC), time-kill assay, scanning electron microscopic technique (SEM), and detection of reactive oxygen species (ROS). Additionally, the effect of menadione on biofilms of three strains of S. aureus was performed through crystal violet assay, SEM, and confocal laser scanning microscopy (CLSM). Menadione exerted substantial antibacterial activity against S. aureus (S8, S9, NCIM 5021) at a lower MIC (64 µg/mL). Whereas, the MIC of 256 µg/mL was displayed against J2 and J4 (MDR and biofilm-forming strains). The time-killing effect of menadione against S. aureus strains was observed after 9 h at MBCs of 64 µg/mL (NCIM 5021), 128 µg/mL (S8, S9), and 512 µg/mL (J2, J4). Enhanced levels of ROS in all five S. aureus were observed in presence of menadione (MICs and MBCs). The relation of enhanced ROS due to menadione activity invigorated us to explore its effect on S. aureus biofilms. We report menadione-mediated inhibition (> 90%) of biofilm formation (at respective MICs) and effect on preformed biofilms (> 85%) at 1024 µg/mL. Menadione possessing antibacterial and antibiofilm potentials are imperative in the era of multidrug resistance developed by bacterial pathogens.
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14
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Cometa S, Bonifacio MA, Bellissimo A, Pinto L, Petrella A, De Vietro N, Iannaccone G, Baruzzi F, De Giglio E. A green approach to develop zeolite-thymol antimicrobial composites: analytical characterization and antimicrobial activity evaluation. Heliyon 2022; 8:e09551. [PMID: 35663747 PMCID: PMC9160486 DOI: 10.1016/j.heliyon.2022.e09551] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/13/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
In this work, the development, analytical characterization and bioactivity of zeolite-thymol composites, obtained using wet, semi-dry and dry processes, were carried out in order to obtain sustainable and powerful antimicrobial additives. FT-IR, XRD, DSC, TGA, SEM and B.E.T. analyses were carried out to gain comprehensive information on the chemical-physical, thermal, and morphological features of the composites. GC-MS analyses allowed quantifying the active molecule loaded in the zeolite, released by the functionalized composites and its stability over time. Among the three procedures, the dry approach allowed to reach the highest thymol loading content and efficiency (49.8 ± 1.6% and 99.6 ± 1.2%, respectively), as well as the highest composite specific surface area value, feature which promises the best interaction between the surface of the composite and the bacterial population. Therefore, the bioactive surface of composites obtained by this solvent-free method was assayed for its antimicrobial activity against four microbial strains belonging to Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Candida albicans species. The higher antimicrobial activity produced by the solvent-free composite in comparison with that of pure thymol, at the same thymol concentration, was ascribed to the large interfacial contact between the composite and the bacterial target. This feature, together with its enhanced storage stability, suggested that this composite could be employed as effective additives for the development of antimicrobial biointerfaces for food, home and personal care applications.
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Affiliation(s)
| | - Maria A Bonifacio
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy.,INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121, Florence Italy
| | | | - Loris Pinto
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126, Bari, Italy
| | - Andrea Petrella
- Department of Civil, Environmental, Land, Building Engineering and Chemistry, Polytechnic University of Bari, Via E. Orabona, 4, Bari, 70125, Italy
| | - Nicoletta De Vietro
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy
| | | | - Federico Baruzzi
- Institute of Sciences of Food Production, National Research Council of Italy, Via G. Amendola 122/O, 70126, Bari, Italy
| | - Elvira De Giglio
- Department of Chemistry, University of Bari, Via Orabona 4, 70126, Bari, Italy.,INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121, Florence Italy
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15
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Antibiotic-loaded lipid-based nanocarrier: a promising strategy to overcome bacterial infection. Int J Pharm 2022; 621:121782. [PMID: 35489605 DOI: 10.1016/j.ijpharm.2022.121782] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 04/11/2022] [Accepted: 04/25/2022] [Indexed: 12/18/2022]
Abstract
According to the World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC), bacterial infections are one of the greatest threats to global health, food production, and life expectancy. In this sense, the development of innovative formulations aiming at greater therapeutic efficacy, safety, and shorter treatment duration compared to conventional products is urgently needed. Lipid-based nanocarriers (LBNs) have demonstrated the potential to enhance the effectiveness of available antibiotics. Among them, liposome, nanoemulsion, solid lipid nanoparticle (SLN), and nanostructured lipid carrier (NLC) are the most promising due to their solid technical background for laboratory and industrial production. This review describes recent advances in developing antibiotic-loaded LBNs against susceptible and resistant bacterial strains and biofilm. LBNs revealed to be a promising alternative to deliver antibiotics due to their superior characteristics compared to conventional preparations, including their modified drug release, improved bioavailability, drug protection against chemical or enzymatic degradation, greater drug loading capacity, and biocompatibility. Antibiotic-loaded LBNs can improve current clinical drug therapy, bring innovative products and rescue discarded antibiotics. Thus, antibiotic-loaded LBNs have potential to open a window of opportunities to continue saving millions of lives and prevent the devastating impact of bacterial infection.
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16
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Contribution of Governance and Socioeconomic Factors to the P. aeruginosa MDR in Europe. Antibiotics (Basel) 2022; 11:antibiotics11020212. [PMID: 35203815 PMCID: PMC8868180 DOI: 10.3390/antibiotics11020212] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 11/19/2021] [Accepted: 01/05/2022] [Indexed: 12/20/2022] Open
Abstract
This work aims to explain the behavior of the multi-drug resistance (MDR) percentage of Pseudomonas aeruginosa in Europe, through multivariate statistical analysis and machine learning validation, using data from the European Antimicrobial Resistance Surveillance System, the World Health Organization, and the World Bank. We ran a multidimensional data panel regression analysis and used machine learning techniques to validate a pooling panel data case. The results of our analysis showed that the most important variables explaining the MDR phenomena across European countries are governance variables, such as corruption control and the rule of law. The models proposed in this study showed the complexity of the antibiotic drugs resistance problem. The efforts controlling MDR P. aeruginosa, as a well-known Healthcare-Associated Infection (HCAI), should be focused on solving national governance problems that impact resource distribution, in addition to individual guidelines, such as promoting the appropriate use of antibiotics.
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Popovici V, Bucur L, Calcan SI, Cucolea EI, Costache T, Rambu D, Schröder V, Gîrd CE, Gherghel D, Vochita G, Caraiane A, Badea V. Elemental Analysis and In Vitro Evaluation of Antibacterial and Antifungal Activities of Usnea barbata (L.) Weber ex F.H. Wigg from Călimani Mountains, Romania. PLANTS (BASEL, SWITZERLAND) 2021; 11:plants11010032. [PMID: 35009036 PMCID: PMC8747648 DOI: 10.3390/plants11010032] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 05/02/2023]
Abstract
This study aims to complete our research on Usnea barbata (L.) Weber ex F.H. Wigg (U. barbata) from the Călimani Mountains, Romania, with an elemental analysis and to explore its antibacterial and antifungal potential. Thus, we analyzed twenty-three metals (Ca, Fe, Mg, Mn, Zn, Al, Ag, Ba, Co, Cr, Cu, Li, Ni, Tl, V, Mo, Pd, Pt, Sb, As, Pb, Cd, and Hg) in dried U. barbata lichen (dUB) by inductively coupled plasma mass spectrometry (ICP-MS). For the second study, we performed dried lichen extraction with five different solvents (ethyl acetate, acetone, ethanol, methanol, and water), obtaining five U. barbata dry extracts (UBDE). Then, using an adapted disc diffusion method (DDM), we examined their antimicrobial activity against seven bacterial species-four Gram-positive (Staphylococcus aureus, Enterococcus casseliflavus, Streptococcus pyogenes, and Streptococcus pneumoniae) and three Gram-negative (Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa)-and two fungi species (Candida albicans and Candida parapsilosis). Usnic acid (UA) was used as a positive control. The ICP-MS data showed a considerable Ca content (979.766 µg/g), followed by, in decreasing order, Mg, Mn, Al, Fe, and Zn. Other elements had low levels: Ba, Cu, Pb, and Cr (3.782-1.002 µg/g); insignificant amounts (<1 µg/g) of Hg and V were also found in dUB. The trace elements Ag, As, Cd, Co, Li, Tl, Mo, Pd, Pt, and Sb were below detection limits (<0.1 µg/g). The DDM results-expressed as the size (mm) of the inhibition zone diameter (IZs)-proved that the water extract did not have any inhibitory activity on any pathogens (IZs = 0 mm). Gram-positive bacteria displayed the most significant susceptibility to all other UBDE, with Enterococcus casseliflavus showing the highest level (IZs = 20-22 mm). The most susceptible Gram-negative bacterium was Pseudomonas aeruginosa (IZs = 16-20 mm); the others were insensitive to all U. barbata dry extracts (IZs = 0 mm). The inhibitory activity of UBDE and UA on Candida albicans was slightly higher than on Candida parapsilosis.
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Affiliation(s)
- Violeta Popovici
- Department of Microbiology and Immunology, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Street, 900684 Constanta, Romania; (V.P.); (V.B.)
| | - Laura Bucur
- Department of Pharmacognosy, Faculty of Pharmacy, Ovidius University of Constanta, 6 Capitan Al. Serbanescu Street, 900001 Constanta, Romania
- Correspondence: ; Tel.: +40-721528446
| | - Suzana Ioana Calcan
- Research Center for Instrumental Analysis SCIENT, 1E Petre Ispirescu Street, 077167 Tancabesti, Romania; (S.I.C.); (E.I.C.); (T.C.); (D.R.)
| | - Elena Iulia Cucolea
- Research Center for Instrumental Analysis SCIENT, 1E Petre Ispirescu Street, 077167 Tancabesti, Romania; (S.I.C.); (E.I.C.); (T.C.); (D.R.)
| | - Teodor Costache
- Research Center for Instrumental Analysis SCIENT, 1E Petre Ispirescu Street, 077167 Tancabesti, Romania; (S.I.C.); (E.I.C.); (T.C.); (D.R.)
| | - Dan Rambu
- Research Center for Instrumental Analysis SCIENT, 1E Petre Ispirescu Street, 077167 Tancabesti, Romania; (S.I.C.); (E.I.C.); (T.C.); (D.R.)
| | - Verginica Schröder
- Department of Cellular and Molecular Biology, Faculty of Pharmacy, Ovidius University of Constanta, 6 Capitan Al. Serbanescu Street, 900001 Constanta, Romania;
| | - Cerasela Elena Gîrd
- Department of Pharmacognosy, Phytochemistry, and Phytotherapy, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania;
| | - Daniela Gherghel
- NIRDBS, Institute of Biological Research Iasi, 47 Lascar Catargi Street, 700107 Iasi, Romania; (D.G.); (G.V.)
| | - Gabriela Vochita
- NIRDBS, Institute of Biological Research Iasi, 47 Lascar Catargi Street, 700107 Iasi, Romania; (D.G.); (G.V.)
| | - Aureliana Caraiane
- Department of Oral Rehabilitation, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Street, 900684 Constanta, Romania;
| | - Victoria Badea
- Department of Microbiology and Immunology, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Street, 900684 Constanta, Romania; (V.P.); (V.B.)
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de Araújo-Neto JB, da Silva MMC, Oliveira-Tintino CDDM, Begnini IM, Rebelo RA, da Silva LE, Mireski SL, Nasato MC, Krautler MIL, Ribeiro-Filho J, Siyadatpanah A, Wilairatana P, Coutinho HDM, Tintino SR. Enhancement of Antibiotic Activity by 1,8-Naphthyridine Derivatives against Multi-Resistant Bacterial Strains. Molecules 2021; 26:7400. [PMID: 34885981 PMCID: PMC8659213 DOI: 10.3390/molecules26237400] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/02/2021] [Accepted: 12/04/2021] [Indexed: 11/24/2022] Open
Abstract
The search for new antibacterial agents has become urgent due to the exponential growth of bacterial resistance to antibiotics. Nitrogen-containing heterocycles such as 1,8-naphthyridine derivatives have been shown to have excellent antimicrobial properties. Therefore, the purpose of this study was to evaluate the antibacterial and antibiotic-modulating activities of 1,8-naphthyridine derivatives against multi-resistant bacterial strains. The broth microdilution method was used to determine the minimum inhibitory concentration (MIC) of the following compounds: 7-acetamido-1,8-naphthyridin-4(1H)-one and 3-trifluoromethyl-N-(5-chloro-1,8-naphthyridin-2-yl)-benzenesulfonamide. The antibiotic-modulating activity was analyzed using subinhibitory concentrations (MIC/8) of these compounds in combination with norfloxacin, ofloxacin, and lomefloxacin. Multi-resistant strains of Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus were used in both tests. Although the compounds had no direct antibacterial activity (MIC ≥ 1.024 µg/mL), they could decrease the MIC of these fluoroquinolones, indicating synergism was obtained from the association of the compounds. These results suggest the existence of a structure-activity relationship in this group of compounds with regard to the modulation of antibiotic activity. Therefore, we conclude that 1,8-naphthyridine derivatives potentiate the activity of fluoroquinolone antibiotics against multi-resistant bacterial strains, and thereby interesting candidates for the development of drugs against bacterial infections caused by multidrug resistant strains.
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Affiliation(s)
- José B. de Araújo-Neto
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri—URCA, Crato 63105-000, CE, Brazil; (J.B.d.A.-N.); (M.M.C.d.S.); (C.D.d.M.O.-T.); (S.R.T.)
| | - Maria M. C. da Silva
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri—URCA, Crato 63105-000, CE, Brazil; (J.B.d.A.-N.); (M.M.C.d.S.); (C.D.d.M.O.-T.); (S.R.T.)
| | - Cícera D. de M. Oliveira-Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri—URCA, Crato 63105-000, CE, Brazil; (J.B.d.A.-N.); (M.M.C.d.S.); (C.D.d.M.O.-T.); (S.R.T.)
| | - Iêda M. Begnini
- Department of Chemistry, Regional University of Blumenau—FURB, Itoupava Seca, Blumenau 89012-900, SC, Brazil; (I.M.B.); (R.A.R.); (S.L.M.); (M.C.N.); (M.I.L.K.)
| | - Ricardo A. Rebelo
- Department of Chemistry, Regional University of Blumenau—FURB, Itoupava Seca, Blumenau 89012-900, SC, Brazil; (I.M.B.); (R.A.R.); (S.L.M.); (M.C.N.); (M.I.L.K.)
| | - Luiz E. da Silva
- Postgraduate Program in Sustainable Territorial Development—Coastal Sector, Federal University of Paraná, Curitiba 80060-000, PR, Brazil;
| | - Sandro L. Mireski
- Department of Chemistry, Regional University of Blumenau—FURB, Itoupava Seca, Blumenau 89012-900, SC, Brazil; (I.M.B.); (R.A.R.); (S.L.M.); (M.C.N.); (M.I.L.K.)
| | - Michele C. Nasato
- Department of Chemistry, Regional University of Blumenau—FURB, Itoupava Seca, Blumenau 89012-900, SC, Brazil; (I.M.B.); (R.A.R.); (S.L.M.); (M.C.N.); (M.I.L.K.)
| | - Maria I. L. Krautler
- Department of Chemistry, Regional University of Blumenau—FURB, Itoupava Seca, Blumenau 89012-900, SC, Brazil; (I.M.B.); (R.A.R.); (S.L.M.); (M.C.N.); (M.I.L.K.)
| | - Jaime Ribeiro-Filho
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Rua Waldemar Falcão, 121, Candeal, Salvador 40296-710, BA, Brazil;
| | - Abolghasem Siyadatpanah
- Ferdows School of Paramedical and Health, Birjand University of Medical Sciences, Birjand 9717853577, Iran
- Infectious Diseases Research Center, Birjand University of Medical Sciences, Birjand 9717853577, Iran
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Henrique D. M. Coutinho
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri—URCA, Crato 63105-000, CE, Brazil; (J.B.d.A.-N.); (M.M.C.d.S.); (C.D.d.M.O.-T.); (S.R.T.)
| | - Saulo R. Tintino
- Laboratory of Microbiology and Molecular Biology (LMBM), Regional University of Cariri—URCA, Crato 63105-000, CE, Brazil; (J.B.d.A.-N.); (M.M.C.d.S.); (C.D.d.M.O.-T.); (S.R.T.)
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McLeod DV, Gandon S. Understanding the evolution of multiple drug resistance in structured populations. eLife 2021; 10:65645. [PMID: 34061029 PMCID: PMC8208818 DOI: 10.7554/elife.65645] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 05/28/2021] [Indexed: 12/19/2022] Open
Abstract
The evolution of multidrug resistance (MDR) is a pressing public health concern. Yet many aspects, such as the role played by population structure, remain poorly understood. Here, we argue that studying MDR evolution by focusing upon the dynamical equations for linkage disequilibrium (LD) can greatly simplify the calculations, generate more insight, and provide a unified framework for understanding the role of population structure. We demonstrate how a general epidemiological model of MDR evolution can be recast in terms of the LD equations. These equations reveal how the different forces generating and propagating LD operate in a dynamical setting at both the population and metapopulation levels. We then apply these insights to show how the LD perspective: (i) explains equilibrium patterns of MDR, (ii) provides a simple interpretative framework for transient evolutionary dynamics, and (iii) can be used to assess the consequences of different drug prescription strategies for MDR evolution.
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Affiliation(s)
- David V McLeod
- Centre D'Ecologie Fonctionnelle & Evolutive, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
| | - Sylvain Gandon
- Centre D'Ecologie Fonctionnelle & Evolutive, CNRS, Univ Montpellier, EPHE, IRD, Montpellier, France
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