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Rojas-Larios F, Martínez-Guerra BA, López-Jácome LE, Bolado-Martínez E, Vázquez-Larios MDR, Velázquez-Acosta MDC, Romero-Romero D, Mireles-Dávalos CD, Quintana-Ponce S, Feliciano-Guzmán JM, Pérez-Hernandez JM, Correa-León YP, López-Gutiérrez E, Rodriguez-Noriega E, González-Díaz E, Choy-Chang EV, Mena-Ramírez JP, Monroy-Colín VA, Ponce-de-León-Garduño A, Alcaraz-Espejel M, Avilés-Benítez LK, Quintanilla-Cazares LJ, Ramírez-Alanís E, Barajas-Magallón JM, Padilla-Ibarra C, Ballesteros-Silva MB, Atanacio-Sixto NA, Morales-de-la-Peña CT, Galindo-Méndez M, Pérez-Vicelis T, Jacobo-Baca G, Moreno-Méndez MI, Mora-Pacheco MDLL, Gutiérrez-Brito M, Sánchez-Godínez XY, Navarro-Vargas NV, Mercado-Bravo LE, Delgado-Barrientos A, Santiago-Calderón MA, López-Ovilla I, Molina-Chavarria A, Rincón-Zuno J, Franco-Cendejas R, Miranda-Mauricio S, Márquez-Avalos IC, López-García M, Duarte-Miranda LS, Cetina-Umaña CM, Barroso-Herrera-Y-Cairo IE, López-Moreno LI, Garza-González E. Active Surveillance of Antimicrobial Resistance and Carbapenemase-Encoding Genes According to Sites of Care and Age Groups in Mexico: Results from the INVIFAR Network. Pathogens 2023; 12:1144. [PMID: 37764952 PMCID: PMC10537696 DOI: 10.3390/pathogens12091144] [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: 08/02/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
We analyzed the antimicrobial resistance (AMR) data of 6519 clinical isolates of Escherichia coli (n = 3985), Klebsiella pneumoniae (n = 775), Acinetobacter baumannii (n = 163), Pseudomonas aeruginosa (n = 781), Enterococcus faecium (n = 124), and Staphylococcus aureus (n = 691) from 43 centers in Mexico. AMR assays were performed using commercial microdilution systems (37/43) and the disk diffusion susceptibility method (6/43). The presence of carbapenemase-encoding genes was assessed using PCR. Data from centers regarding site of care, patient age, and clinical specimen were collected. According to the site of care, the highest AMR was observed in E. coli, K. pneumoniae, and P. aeruginosa isolates from ICU patients. In contrast, in A. baumannii, higher AMR was observed in isolates from hospitalized non-ICU patients. According to age group, the highest AMR was observed in the ≥60 years age group for E. coli, E. faecium, and S. aureus, and in the 19-59 years age group for A. baumannii and P. aeruginosa. According to clinical specimen type, a higher AMR was observed in E. coli, K. pneumoniae, and P. aeruginosa isolates from blood specimens. The most frequently detected carbapenemase-encoding gene in E. coli was blaNDM (84%).
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Affiliation(s)
- Fabian Rojas-Larios
- Laboratorio de Microbiología, Hospital Regional Universitario de Colima, Colima 28040, Mexico
| | - Bernardo Alfonso Martínez-Guerra
- Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico
| | - Luis Esaú López-Jácome
- Servicio de Infectología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico
| | - Enrique Bolado-Martínez
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Hermosillo 83000, Mexico
| | - María Del Rosario Vázquez-Larios
- Laboratorio de Microbiología, Servicio de Infectología y Microbiología Cínica, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | | | | | - Christian Daniel Mireles-Dávalos
- Laboratorio de Microbiología Clínica, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Sandra Quintana-Ponce
- Facultad de Ciencias Naturales, Universidad Autónoma de Guerrero, Chilpancingo 39000, Mexico
| | | | - José Miguel Pérez-Hernandez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
| | - Yoselin Paola Correa-León
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
| | - Eduardo López-Gutiérrez
- Área de Microbiología, Laboratorio Clínico, Hospital Regional de alta Especialidad de Oaxaca, Oaxaca 71256, Mexico
| | - Eduardo Rodriguez-Noriega
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44280, Mexico
| | - Esteban González-Díaz
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44280, Mexico
- Departamento de Medicina Preventiva, Hospital Civil de Guadalajara, Fray Antonio Alcalde, Guadalajara 44280, Mexico
| | - Elena Victoria Choy-Chang
- Departamento de Bacteriología, Hospital General de Zona No.1 IMSS "Nueva Frontera", Tapachula 30767, Mexico
| | - Juan Pablo Mena-Ramírez
- Laboratorio de Microbiología, Hospital General de Zona No. 21 IMSS, Centro Universitario de los Altos (CUALTOS), Universidad de Guadalajara, Tepatitlán de Morelos 47630, Mexico
| | | | - Alfredo Ponce-de-León-Garduño
- Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico
| | | | - Laura Karina Avilés-Benítez
- Laboratorio de Microbiología y Parasitología, Hospital Infantil de Morelia "Eva Sámano de López Mateos", Morelia 58253, Mexico
| | | | | | | | - Cecilia Padilla-Ibarra
- Laboratorio Clínico, Hospital General de Estado "Dr. Ernesto Ramos Bours", Hermosillo 83000, Mexico
| | | | | | | | | | - Talía Pérez-Vicelis
- Hospital Regional de Alta Especialidad Bicentenario de la Independencia, Tultitlán 54916, Mexico
| | - Guillermo Jacobo-Baca
- Centro Universitario de Salud, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
| | | | | | | | | | | | | | | | | | - Ismelda López-Ovilla
- Hospital Chiapas Nos Une Dr. Jesús Gilberto Gómez Maza, Tuxtla Gutiérrez 29045, Mexico
| | | | - Joaquín Rincón-Zuno
- Instituto Materno Infantil del Estado de México, Toluca de Lerdo 50170, Mexico
| | - Rafael Franco-Cendejas
- Servicio de Infectología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico
| | | | | | - Maribel López-García
- Hospital de la Madre y el Niño Guerrerense, Chilpancingo de los Bravo 39075, Mexico
| | | | | | | | | | - Elvira Garza-González
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
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Nieto-Saucedo JR, López-Jacome LE, Franco-Cendejas R, Colín-Castro CA, Hernández-Duran M, Rivera-Garay LR, Zamarripa-Martinez KS, Mosqueda-Gómez JL. Carbapenem-Resistant Gram-Negative Bacilli Characterization in a Tertiary Care Center from El Bajio, Mexico. Antibiotics (Basel) 2023; 12:1295. [PMID: 37627715 PMCID: PMC10451683 DOI: 10.3390/antibiotics12081295] [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: 07/17/2023] [Revised: 07/30/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Carbapenem-resistant Gram-negative bacilli (CR-GNB) are a major public health concern. We aimed to evaluate the prevalence of CR-GNB and the frequency of carbapenemase-encoding genes in a tertiary referral center from El Bajio, Mexico. A cross-sectional study was conducted between January and October 2022; Gram-negative bacilli (GNB) were screened for in vitro resistance to at least one carbapenem. CR-GNB were further analyzed for carbapenemase-production through phenotypical methods and by real-time PCR for the following genes: blaKPC, blaGES, blaNDM, blaVIM, blaIMP, and blaOXA-48. In total, 37 out of 508 GNB were carbapenem-resistant (7.3%, 95% CI 5.2-9.9). Non-fermenters had higher rates of carbapenem resistance than Enterobacterales (32.5% vs. 2.6%; OR 18.3, 95% CI 8.5-39, p < 0.0001), and Enterobacter cloacae showed higher carbapenem resistance than other Enterobacterales (27% vs. 1.4%; OR 25.9, 95% CI 6.9-95, p < 0.0001). Only 15 (40.5%) CR-GNB had a carbapenemase-encoding gene; Enterobacterales were more likely to have a carbapenemase-encoding gene than non-fermenters (63.6% vs. 30.8%, p = 0.08); blaNDM-1 and blaNDM-5 were the main genes found in Enterobacterales; and blaIMP-75 was the most common for Pseudomonas aeruginosa. The mcr-2 gene was harbored in one polymyxin-resistant E. cloacae. In our setting, NDM was the most common carbapenemase; however, less than half of the CR-GNB showed a carbapenemase-encoding gene.
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Affiliation(s)
- Jose Raul Nieto-Saucedo
- Fellow of the General Directorate of Quality and Education in Health, Ministry of Health, Mexico City 06696, Mexico
- Department of Medicine and Nutrition, Universidad de Guanajuato, Leon 37670, Mexico
| | - Luis Esaú López-Jacome
- Infectious Diseases Laboratory, Infectious Diseases Division, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
- Biology Department, Chemistry Faculty, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Rafael Franco-Cendejas
- Biomedical Research Subdirection, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
| | - Claudia Adriana Colín-Castro
- Infectious Diseases Laboratory, Infectious Diseases Division, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
| | - Melissa Hernández-Duran
- Infectious Diseases Laboratory, Infectious Diseases Division, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City 14389, Mexico
| | | | | | - Juan Luis Mosqueda-Gómez
- Department of Medicine and Nutrition, Universidad de Guanajuato, Leon 37670, Mexico
- Hospital Regional de Alta Especialidad del Bajío, Leon 37660, Mexico
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Hu Y, Yang Y, Feng Y, Fang Q, Wang C, Zhao F, McNally A, Zong Z. Prevalence and clonal diversity of carbapenem-resistant Klebsiella pneumoniae causing neonatal infections: A systematic review of 128 articles across 30 countries. PLoS Med 2023; 20:e1004233. [PMID: 37339120 DOI: 10.1371/journal.pmed.1004233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 04/04/2023] [Indexed: 06/22/2023] Open
Abstract
BACKGROUND Klebsiella pneumoniae is the most common pathogen causing neonatal infections, leading to high mortality worldwide. Along with increasing antimicrobial use in neonates, carbapenem-resistant K. pneumoniae (CRKP) has emerged as a severe challenge for infection control and treatment. However, no comprehensive systematic review is available to describe the global epidemiology of neonatal CRKP infections. We therefore performed a systematic review of available data worldwide and combined a genome-based analysis to address the prevalence, clonal diversity, and carbapenem resistance genes of CRKP causing neonatal infections. METHODS AND FINDINGS We performed a systematic review of studies reporting population-based neonatal infections caused by CRKP in combination with a genome-based analysis of all publicly available CRKP genomes with neonatal origins. We searched multiple databases (PubMed, Web of Science, Embase, Ovid MEDLINE, Cochrane, bioRxiv, and medRxiv) to identify studies that have reported data of neonatal CRKP infections up to June 30, 2022. We included studies addressing the prevalence of CRKP infections and colonization in neonates but excluded studies lacking the numbers of neonates, the geographical location, or independent data on Klebsiella or CRKP isolates. We used narrative synthesis for pooling data with JMP statistical software. We identified 8,558 articles and excluding those that did not meet inclusion criteria. We included 128 studies, none of which were preprints, comprising 127,583 neonates in 30 countries including 21 low- and middle-income countries (LMICs) for analysis. We found that bloodstream infection is the most common infection type in reported data. We estimated that the pooled global prevalence of CRKP infections in hospitalized neonates was 0.3% (95% confidence interval [CI], 0.2% to 0.3%). Based on 21 studies reporting patient outcomes, we found that the pooled mortality of neonatal CRKP infections was 22.9% (95% CI, 13.0% to 32.9%). A total of 535 neonatal CRKP genomes were identified from GenBank including Sequence Read Archive, of which 204 were not linked to any publications. We incorporated the 204 genomes with a literature review for understanding the species distribution, clonal diversity, and carbapenemase types. We identified 146 sequence types (STs) for neonatal CRKP strains and found that ST17, ST11, and ST15 were the 3 most common lineages. In particular, ST17 CRKP has been seen in neonates in 8 countries across 4 continents. The vast majority (75.3%) of the 1,592 neonatal CRKP strains available for analyzing carbapenemase have genes encoding metallo-β-lactamases and NDM (New Delhi metallo-β-lactamase) appeared to be the most common carbapenemase (64.3%). The main limitation of this study is the absence or scarcity of data from North America, South America, and Oceania. CONCLUSIONS CRKP contributes to a considerable number of neonatal infections and leads to significant neonatal mortality. Neonatal CRKP strains are highly diverse, while ST17 is globally prevalent and merits early detection for treatment and prevention. The dominance of blaNDM carbapenemase genes imposes challenges on therapeutic options in neonates and supports the continued inhibitor-related drug discovery.
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Affiliation(s)
- Ya Hu
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
| | - Yongqiang Yang
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
- Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Feng
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
- Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China
| | - Qingqing Fang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
| | - Chengcheng Wang
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
| | - Feifei Zhao
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
| | - Alan McNally
- Institute of Microbiology and Infection, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Zhiyong Zong
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu, China
- Division of Infectious Diseases, State Key Laboratory of Biotherapy, Chengdu, China
- Center for Pathogen Research, West China Hospital, Sichuan University, Chengdu, China
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Córdova-Espinoza MG, Giono-Cerezo S, Sierra-Atanacio EG, Escamilla-Gutiérrez A, Carrillo-Tapia E, Carrillo-Vázquez LI, Mendoza-Pérez F, Leyte-Lugo M, González-Vázquez R, Mayorga-Reyes L, González-Vázquez R. Isolation and Identification of Multidrug-Resistant Klebsiella pneumoniae Clones from the Hospital Environment. Pathogens 2023; 12:pathogens12050634. [PMID: 37242304 DOI: 10.3390/pathogens12050634] [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: 03/01/2023] [Revised: 04/09/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Global dispersion, hospital outbreaks, and lineage relationships between emerging antibiotic-resistant strains such as Klebsiella pneumoniae are of public health interest. This study aimed to isolate and identify K. pneumoniae clones from third-level healthcare hospitals in Mexico to establish their multidrug-resistant phenotype, phylogeny, and prevalence. Biological and abiotic surface samples were used to isolate K. pneumoniae strains and to test their antibiotic susceptibility to classify them. The housekeeping genes: gapA, InfB, mdh, pgi, phoE, ropB, and tonB were used for multilocus sequence typing (MLST). Phylogenetic networks were constructed with 48 strains. Isolated strains (93) were mainly from urine and blood, 96% were resistant to ampicillin as expected, 60% were extended-spectrum β-lactamases (ESBL), 98% were susceptible to ertapenem and meropenem and 99% were susceptible to imipenem, 46% were multi-drug resistant (MDR), 17% were extensively-drug resistant (XDR), 1% were pan-drug resistant (PDR), and 36% were not classified. The tonB, mdh, and phoE genes were the most variable, and the InfB gene showed positive selection. The most prevalent sequence types (STs) were ST551 (six clones), ST405 (six clones), ST1088 (four clones), ST25 (four clones), ST392 (three clones), and ST36 (two clones). ST706 was PDR, and ST1088 clones were MDR; neither of these STs has been reported in Mexico. The strains analyzed were from different hospitals and locations; thus, it is important to maintain antibiotic surveillance and avoid clone dissemination to prevent outbreaks, adaptation to antibiotics, and the transmission of antibiotic resistance.
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Affiliation(s)
- María Guadalupe Córdova-Espinoza
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
- Escuela Militar de Graduados de Sanidad SEDENA, Laboratorio de Inmunologia, Batalla de Celaya 202, Col. Lomas de Sotelo, Alcaldía Miguel Hidalgo, Mexico City 11200, Mexico
| | - Silvia Giono-Cerezo
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
| | - Erika Gabriela Sierra-Atanacio
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
| | - Alejandro Escamilla-Gutiérrez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
- Instituto Mexicano del Seguro Social, Hospital General "Dr. Gaudencio González Garza", Centro Medico Nacional La Raza, Privada de las Jacarandas, S/N, Col. La Raza, Alcaldía Azcapotzalco, Mexico City 02990, Mexico
| | - Eduardo Carrillo-Tapia
- Colegio de Ciencias y Humanidades, Universidad Autónoma de la Ciudad de México, Avenida de la Corona 320, Col. Loma de la Palma, Alcaldia Gustavo a Madero, Mexico City 07160, Mexico
| | - Laura Isabel Carrillo-Vázquez
- Posgrado en Ciencia Genómicas, Universidad Autónoma de la Ciudad de México, San Lorenzo 290, Col. Del Valle, Alcaldía Benito Juárez, Mexico City 03130, Mexico
| | - Felipe Mendoza-Pérez
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Martha Leyte-Lugo
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, CONACYT-Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Raquel González-Vázquez
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, CONACYT-Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Lino Mayorga-Reyes
- Laboratorio de Biotecnología, Departamento de Sistemas Biológicos, Universidad Autónoma Metropolitana Unidad Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldía Coyoacán, Mexico City 04960, Mexico
| | - Rosa González-Vázquez
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Departamento de Microbiología, Prolongación de Carpio y Plan de Ayala S/N, Col. Casco de Santo Tomas, Alcaldía Miguel Hidalgo, Mexico City 11340, Mexico
- Instituto Mexicano del Seguro Social, Unidad Médica de Alta Especialidad, Hospital de Especialidades "Dr. Antonio Fraga Mouret", Centro Medico Nacional La Raza. Seris y Zaachila S/N, Col. La Raza, Alcaldía Azcapotzalco, Mexico City 02990, Mexico
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Cuetero-Martínez Y, Flores-Ramírez A, De Los Cobos-Vasconcelos D, Aguirre-Garrido JF, López-Vidal Y, Noyola A. Removal of bacterial pathogens and antibiotic resistance bacteria by anaerobic sludge digestion with thermal hydrolysis pre-treatment and alkaline stabilization post-treatment. CHEMOSPHERE 2023; 313:137383. [PMID: 36436581 DOI: 10.1016/j.chemosphere.2022.137383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/16/2023]
Abstract
Primary sludge (PS) is associated with public health and environmental risks, so regulations focus on reducing the pathogenic and heavy metal contents of the treated material (biosolids), intended for soil amendments and land reclamation. The regulations set limits for Escherichia coli (or fecal coliforms), Salmonella spp., helminth eggs and enterovirus. However, the potential risk due to antibiotic resistant bacteria (ARB) and other human potential pathogenic bacteria (HPB) are not considered. In this work, three sludge treatment processes, having in common an anaerobic digestion step, were applied to assess the removal of regulated bacteria (fecal coliforms, Salmonella spp), ARB and HPB. The treatment arrangements, fed with PS from a full-scale wastewater treatment plant were: 1) Mesophilic anaerobic digestion followed by alkaline stabilization post-treatment (MAD-CaO); 2) Thermophilic anaerobic digestion (TAD) and, 3) Pre-treatment (mild thermo-hydrolysis) followed by TAD (PT-TAD). The results address the identification, quantification (colony forming units) and taxonomic characterization of ARB resistant to β-lactams and vancomycin, as well as the taxonomic characterization of HPB by sequencing with PacBio. In addition, quantification based on culture media of fecal coliforms and Salmonella spp. is presented. The capabilities and limitations of microbiological and metataxonomomic analyses based on PacBio sequencing are discussed, emphasizing that they complement each other. Genus Aeromonas, Acinetobacter, Citrobacter, Enterobacter, Escherichia, Klebsiella, Ochrobactrum, Pseudomonas and Raoultella, among others, were found in the PS, which are of clinical or environmental importance, being either HPB, HPB-ARB, or non-pathogenic ARB with the potentiality of horizontal gene transfer. Based on the analysis of fecal coliforms and Salmonella spp., the three processes produced class A (highest) biosolids, suitable for unrestricted agriculture applications. Mild thermo-hydrolisis was effective in decreasing ARB cultivability, but it reappeared after the following TAD. O. intermedium (HPB-ARB) was enriched in MAD and TAD while Laribacter hongkongensis (HPB) did persist after the applied treatments.
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Affiliation(s)
- Yovany Cuetero-Martínez
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510 CDMX, Mexico; Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México, 04510 CDMX, Mexico
| | - Aarón Flores-Ramírez
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510 CDMX, Mexico
| | - Daniel De Los Cobos-Vasconcelos
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510 CDMX, Mexico
| | - José Félix Aguirre-Garrido
- Departamento de Ciencias Ambientales, Universidad Autónoma Metropolitana - Unidad Lerma, 52005 Lerma de Villada, Edo. Mex, Mexico
| | - Yolanda López-Vidal
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, 04510 CDMX, Mexico
| | - Adalberto Noyola
- Subdirección de Hidráulica y Ambiental, Instituto de Ingeniería, Universidad Nacional Autónoma de México, 04510 CDMX, Mexico.
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Emergence and Dissemination of Extraintestinal Pathogenic High-Risk International Clones of Escherichia coli. LIFE (BASEL, SWITZERLAND) 2022; 12:life12122077. [PMID: 36556442 PMCID: PMC9780897 DOI: 10.3390/life12122077] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
Multiresistant Escherichia coli has been disseminated worldwide, and it is one of the major causative agents of nosocomial infections. E. coli has a remarkable and complex genomic plasticity for taking up and accumulating genetic elements; thus, multiresistant high-risk clones can evolve. In this review, we summarise all available data about internationally disseminated extraintestinal pathogenic high-risk E. coli clones based on whole-genome sequence (WGS) data and confirmed outbreaks. Based on genetic markers, E. coli is clustered into eight phylogenetic groups. Nowadays, the E. coli ST131 clone from phylogenetic group B2 is the predominant high-risk clone worldwide. Currently, strains of the C1-M27 subclade within clade C of ST131 are circulating and becoming prominent in Canada, China, Germany, Hungary and Japan. The C1-M27 subclade is characterised by blaCTX-M-27. Recently, the ST1193 clone has been reported as an emerging high-risk clone from phylogenetic group B2. ST38 clone carrying blaOXA-244 (a blaOXA-48-like carbapenemase gene) caused several outbreaks in Germany and Switzerland. Further high-risk international E. coli clones include ST10, ST69, ST73, ST405, ST410, ST457. High-risk E. coli strains are present in different niches, in the human intestinal tract and in animals, and persist in environment. These strains can be transmitted easily within the community as well as in hospital settings. WGS analysis is a useful tool for tracking the dissemination of resistance determinants, the emergence of high-risk mulitresistant E. coli clones and to analyse changes in the E. coli population on a genomic level.
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OXA-48-Like β-Lactamases: Global Epidemiology, Treatment Options, and Development Pipeline. Antimicrob Agents Chemother 2022; 66:e0021622. [PMID: 35856662 PMCID: PMC9380527 DOI: 10.1128/aac.00216-22] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Modern medicine is threatened by the rising tide of antimicrobial resistance, especially among Gram-negative bacteria, where resistance to β-lactams is most often mediated by β-lactamases. The penicillin and cephalosporin ascendancies were, in their turn, ended by the proliferation of TEM penicillinases and CTX-M extended-spectrum β-lactamases. These class A β-lactamases have long been considered the most important. For carbapenems, however, the threat is increasingly from the insidious rise of a class D carbapenemase, OXA-48, and its close relatives. Over the past 20 years, OXA-48 and "OXA-48-like" enzymes have proliferated to become the most prevalent enterobacterial carbapenemases across much of Europe, Northern Africa, and the Middle East. OXA-48-like enzymes are notoriously difficult to detect because they often cause only low-level in vitro resistance to carbapenems, meaning that the true burden is likely underestimated. Despite this, they are associated with carbapenem treatment failures. A highly conserved incompatibility complex IncL plasmid scaffold often carries blaOXA-48 and may carry other antimicrobial resistance genes, leaving limited treatment options. High conjugation efficiency means that this plasmid is sometimes carried by multiple Enterobacterales in a single patient. Producers evade most β-lactam-β-lactamase inhibitor combinations, though promising agents have recently been licensed, notably ceftazidime-avibactam and cefiderocol. The molecular machinery enabling global spread, current treatment options, and the development pipeline of potential new therapies for Enterobacterales that produce OXA-48-like β-lactamases form the focus of this review.
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Klebsiella oxytoca Complex: Update on Taxonomy, Antimicrobial Resistance, and Virulence. Clin Microbiol Rev 2021; 35:e0000621. [PMID: 34851134 DOI: 10.1128/cmr.00006-21] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Klebsiella oxytoca is actually a complex of nine species-Klebsiella grimontii, Klebsiella huaxiensis, Klebsiella michiganensis, K. oxytoca, Klebsiella pasteurii, Klebsiella spallanzanii, and three unnamed novel species. Phenotypic tests can assign isolates to the complex, but precise species identification requires genome-based analysis. The K. oxytoca complex is a human commensal but also an opportunistic pathogen causing various infections, such as antibiotic-associated hemorrhagic colitis (AAHC), urinary tract infection, and bacteremia, and has caused outbreaks. Production of the cytotoxins tilivalline and tilimycin lead to AAHC, while many virulence factors seen in Klebsiella pneumoniae, such as capsular polysaccharides and fimbriae, have been found in the complex; however, their association with pathogenicity remains unclear. Among the 5,724 K. oxytoca clinical isolates in the SENTRY surveillance system, the rates of nonsusceptibility to carbapenems, ceftriaxone, ciprofloxacin, colistin, and tigecycline were 1.8%, 12.5%, 7.1%, 0.8%, and 0.1%, respectively. Resistance to carbapenems is increasing alarmingly. In addition to the intrinsic blaOXY, many genes encoding β-lactamases with varying spectra of hydrolysis, including extended-spectrum β-lactamases, such as a few CTX-M variants and several TEM and SHV variants, have been found. blaKPC-2 is the most common carbapenemase gene found in the complex and is mainly seen on IncN or IncF plasmids. Due to the ability to acquire antimicrobial resistance and the carriage of multiple virulence genes, the K. oxytoca complex has the potential to become a major threat to human health.
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Molecular Epidemiology of Multidrug-Resistant Uropathogenic Escherichia coli O25b Strains Associated with Complicated Urinary Tract Infection in Children. Microorganisms 2021; 9:microorganisms9112299. [PMID: 34835425 PMCID: PMC8623209 DOI: 10.3390/microorganisms9112299] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022] Open
Abstract
Background: Uropathogenic Escherichia coli (UPEC) has increased the incidence of urinary tract infection (UTI). It is the cause of more than 80% of community-acquired cystitis cases and more than 70% of uncomplicated acute pyelonephritis cases. Aim: The present study describes the molecular epidemiology of UPEC O25b clinical strains based on their resistance profiles, virulence genes, and genetic diversity. Methods: Resistance profiles were identified using the Kirby–Bauer method, including the phenotypic production of extended-spectrum β-lactamases (ESBLs) and metallo-β-lactamases (MBLs). The UPEC serogroups, phylogenetic groups, virulence genes, and integrons were determined via multiplex PCR. Genetic diversity was established using pulsed-field gel electrophoresis (PFGE), and sequence type (ST) was determined via multilocus sequence typing (MLST). Results: UPEC strains (n = 126) from hospitalized children with complicated UTIs (cUTIs) were identified as O25b, of which 41.27% were multidrug resistant (MDR) and 15.87% were extensively drug resistant (XDR). The O25b strains harbored the fimH (95.23%), csgA (91.26%), papGII (80.95%), chuA (95.23%), iutD (88.09%), satA (84.92%), and intl1 (47.61%) genes. Moreover, 64.28% were producers of ESBLs and had high genetic diversity. ST131 (63.63%) was associated primarily with phylogenetic group B2, and ST69 (100%) was associated primarily with phylogenetic group D. Conclusion: UPEC O25b/ST131 harbors a wide genetic diversity of virulence and resistance genes, which contribute to cUTIs in pediatrics.
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Lüneberg K, Amábile-Cuevas CF, Mucito-Varela E, Martínez L, Salinas E, López-Vidal Y, Siebe C, Rosas I. Metallo-beta-lactamase-producing Escherichia coli in the sewage of Mexico City: where do they come from? Can J Microbiol 2021; 68:139-145. [PMID: 34662521 DOI: 10.1139/cjm-2021-0284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
While monitoring the presence of antibiotic resistance in municipal wastewater bacteria from Mexico City, five Escherichia coli isolates were found to be resistant to carbapenems, antibiotics of "last resort" used mostly in hospitals. Further analysis revealed that these carbapenem-resistant isolates carried the gene encoding a metallo-beta-lactamase, NDM-5. The gene was found to be beared by a large, ∼145 kb conjugative plasmid, which also carries putative genes encoding resistance to sulfonamides, trimethoprim, tetracycline, ciprofloxacin, and chloramphenicol (although no phenotypic chloramphenicol resistance was detected) and quaternary-ammonium compounds. The plasmid also carried gene mobility determinants, such as integron integrase and two transposases. In addition to the direct public health threat posed by the presence of such multi-resistant organisms in wastewater released into the environment and used for crop irrigation; it is particularly concerning that carbapenem-resistant E. coli is rather rare in Mexican hospitals (<1%), but was found in small, 100 mL samples of municipal wastewater. This suggests that these organisms are under-reported by clinical microbiology laboratories, underlining the usefulness of wastewater monitoring, or that there is an unknown source of such carbapenem-resistant organisms that are being dumped into the wastewater. The source of these bacteria must be assessed and controlled to prevent further spread of this multi-resistance plasmid among other environmental and clinical microorganisms.
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Affiliation(s)
- Kathia Lüneberg
- Laboratorio de Aerobiología, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | | | - Eduardo Mucito-Varela
- Programa de Inmunología Molecular Microbiana, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Leticia Martínez
- Laboratorio de Aerobiología, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Eva Salinas
- Laboratorio de Aerobiología, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Yolanda López-Vidal
- Programa de Inmunología Molecular Microbiana, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Christina Siebe
- Departamento de Ciencias Ambientales y del Suelo, Instituto de Geología, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Irma Rosas
- Laboratorio de Aerobiología, Centro de Ciencias de la Atmósfera, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Toledano-Tableros JE, Gayosso-Vázquez C, Jarillo-Quijada MD, Fernández-Vázquez JL, Morfin-Otero R, Rodríguez-Noriega E, Giono-Cerezo S, Gutkind G, Di Conza J, Santos-Preciado JI, Alcántar-Curiel MD. Dissemination of bla NDM- 1 Gene Among Several Klebsiella pneumoniae Sequence Types in Mexico Associated With Horizontal Transfer Mediated by IncF-Like Plasmids. Front Microbiol 2021; 12:611274. [PMID: 33841344 PMCID: PMC8027308 DOI: 10.3389/fmicb.2021.611274] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/28/2021] [Indexed: 12/13/2022] Open
Abstract
Nosocomial infections caused by multidrug-resistant (MDR) Klebsiella pneumoniae are a major health problem worldwide. The aim of this study was to describe NDM-1-producing K. pneumoniae strains causing bacteremia in a tertiary referral hospital in Mexico. MDR K. pneumoniae isolates were screened by polymerase chain reaction for the presence of resistance genes. In resistant isolates, plasmids were identified and conjugation assays were performed. Clonal diversity and the sequence types were determined by pulsed-field gel electrophoresis and multilocus sequence typing. A total of 80 K. pneumoniae isolates were collected from patients with bacteremia over a 1-year period. These isolates showed a level of resistance of 59% (47/80) to aztreonam, 56-60% (45-48/80) to cephalosporins, 54% (43/80) to colistin and 12.5% (10/80) to carbapenems. The carbapenem resistant isolates were bla NDM- 1 carriers and negative for bla KPC, bla NDM, bla IMP, bla VIM and bla OXA- 48 -like carbapenemases genes. Conjugative plasmids IncFIIA and IncF group with sizes of 82-195 kbp were carriers of bla NDM- 1, bla CTX-M- 15, bla TEM- 1, aac(6')-Ib and/or aac(3')-IIa. Clonal variability and nine different multilocus sequence types were detected (ST661, ST683, ST1395, ST2706, ST252, ST1198, ST690, ST1535, and ST3368) for the first time in the isolates carrying bla NDM- 1 in Mexico. This study demonstrates that bla NDM- 1 has remained within this hospital in recent years and suggests that it is currently the most prevalent carbapenemase among K. pneumoniae MDR strains causing bacteremia in Mexico. The horizontal transfer of bla NDM- 1 gene through IncF-like plasmids among different clones demonstrates the dissemination pathway of antimicrobial resistance and underscore the need for strong and urgent joint measures to control the spread of NDM-1 carbapenemase in the hospital.
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Affiliation(s)
- José Eduardo Toledano-Tableros
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
- Departamento de Microbiología, Escuela Nacional de Ciencia Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Catalina Gayosso-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Ma Dolores Jarillo-Quijada
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - José Luis Fernández-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Rayo Morfin-Otero
- Hospital Civil de Guadalajara “Fray Antonio Alcalde” e Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Eduardo Rodríguez-Noriega
- Hospital Civil de Guadalajara “Fray Antonio Alcalde” e Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Silvia Giono-Cerezo
- Departamento de Microbiología, Escuela Nacional de Ciencia Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Gabriel Gutkind
- Laboratorio de Resistencia Bacteriana, Facultad de Farmacia y Bioquímica de la Universidad de Buenos Aires, Buenos Aires, Argentina
| | - José Di Conza
- Laboratorio de Resistencia Bacteriana, Facultad de Farmacia y Bioquímica de la Universidad de Buenos Aires, Buenos Aires, Argentina
| | - José Ignacio Santos-Preciado
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - María Dolores Alcántar-Curiel
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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Garza-González E, Bocanegra-Ibarias P, Bobadilla-del-Valle M, Ponce-de-León-Garduño LA, Esteban-Kenel V, Silva-Sánchez J, Garza-Ramos U, Barrios-Camacho H, López-Jácome LE, Colin-Castro CA, Franco-Cendejas R, Flores-Treviño S, Morfín-Otero R, Rojas-Larios F, Mena-Ramírez JP, Fong-Camargo MG, Morales-De-la-Peña CT, García-Mendoza L, Choy-Chang EV, Aviles-Benitez LK, Feliciano-Guzmán JM, López-Gutiérrez E, Gil-Veloz M, Barajas-Magallón JM, Aguirre-Burciaga E, López-Moreno LI, Martínez-Villarreal RT, Canizales-Oviedo JL, Cetina-Umaña CM, Romero-Romero D, Bello-Pazos FD, Barlandas-Rendón NRE, Maldonado-Anicacio JY, Bolado-Martínez E, Galindo-Méndez M, Perez-Vicelis T, Alavez-Ramírez N, Méndez-Sotelo BJ, Cabriales-Zavala JF, Nava-Pacheco YC, Moreno-Méndez MI, García-Romo R, Silva-Gamiño AR, Avalos-Aguilera AM, Santiago-Calderón MA, López-García M, Velázquez-Acosta MDC, Cobos-Canul DI, Vázquez-Larios MDR, Ortiz-Porcayo AE, Guerrero-Núñez AE, Valero-Guzmán J, Rosales-García AA, Ostos-Cantú HL, Camacho-Ortiz A. Drug resistance phenotypes and genotypes in Mexico in representative gram-negative species: Results from the infivar network. PLoS One 2021; 16:e0248614. [PMID: 33730101 PMCID: PMC7968647 DOI: 10.1371/journal.pone.0248614] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 02/16/2021] [Indexed: 12/14/2022] Open
Abstract
Aim This report presents phenotypic and genetic data on the prevalence and characteristics of extended-spectrum β-lactamases (ESBLs) and representative carbapenemases-producing Gram-negative species in Mexico. Material and methods A total of 52 centers participated, 43 hospital-based laboratories and 9 external laboratories. The distribution of antimicrobial resistance data for Escherichia coli, Klebsiella pneumoniae, Enterobacter cloacae complex, Acinetobacter baumannii complex, and Pseudomonas aeruginosa in selected clinical specimens from January 1 to March 31, 2020 was analyzed using the WHONET 5.6 platform. The following clinical isolates recovered from selected specimens were included: carbapenem-resistant Enterobacteriaceae, ESBL or carbapenem-resistant E. coli, and K. pneumoniae, carbapenem-resistant A. baumannii complex, and P. aeruginosa. Strains were genotyped to detect ESBL and/or carbapenemase-encoding genes. Results Among blood isolates, A. baumannii complex showed more than 68% resistance for all antibiotics tested, and among Enterobacteria, E. cloacae complex showed higher resistance to carbapenems. A. baumannii complex showed a higher resistance pattern for respiratory specimens, with only amikacin having a resistance lower than 70%. Among K. pneumoniae isolates, blaTEM, blaSHV, and blaCTX were detected in 68.79%, 72.3%, and 91.9% of isolates, respectively. Among E. coli isolates, blaTEM, blaSHV, and blaCTX were detected in 20.8%, 4.53%, and 85.7% isolates, respectively. For both species, the most frequent genotype was blaCTX-M-15. Among Enterobacteriaceae, the most frequently detected carbapenemase-encoding gene was blaNDM-1 (81.5%), followed by blaOXA-232 (14.8%) and blaoxa-181(7.4%), in A. baumannii was blaOXA-24 (76%) and in P. aeruginosa, was blaIMP (25.3%), followed by blaGES and blaVIM (13.1% each). Conclusion Our study reports that NDM-1 is the most frequent carbapenemase-encoding gene in Mexico in Enterobacteriaceae with the circulation of the oxacillinase genes 181 and 232. KPC, in contrast to other countries in Latin America and the USA, is a rare occurrence. Additionally, a high circulation of ESBL blaCTX-M-15 exists in both E. coli and K. pneumoniae.
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Affiliation(s)
- Elvira Garza-González
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Paola Bocanegra-Ibarias
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | | | | | - Verónica Esteban-Kenel
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | | | | | | | - Luis Esaú López-Jácome
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | | | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | - Samantha Flores-Treviño
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara E Instituto de Patología Infecciosa, Guadalajara, Jalisco, Mexico
| | | | - Juan Pablo Mena-Ramírez
- Hospital General de Zona 21 Tepatitlán De Morelos, Centro Universitario de los Altos (CUALTOS), Universidad de Guadalajara, Tepatitlán de Morelos, Jalisco, Mexico
| | | | | | | | | | | | | | | | - Mariana Gil-Veloz
- Hospital Regional de Alta Especialidad del Bajío, Guanajuato, Guanajuato, Mexico
| | | | | | | | | | - Jorge Luis Canizales-Oviedo
- Centro Universitario de Salud, Universidad Autónoma de Nuevo León. Laboratorio Pueblo Nuevo, Monterrey Nuevo León, Mexico
| | | | - Daniel Romero-Romero
- Laboratorio de Análisis Bioquímico Clínicos "Louis Pasteur" Toluca, Estado de México, Mexico
| | | | | | | | | | | | - Talia Perez-Vicelis
- Hospital Regional "Bicentenario de la Independencia” ISSSTE, Tultitlán, Estado de México, Mexico
| | - Norma Alavez-Ramírez
- Hospital Regional "Bicentenario de la Independencia” ISSSTE, Tultitlán, Estado de México, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Adrián Camacho-Ortiz
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
- * E-mail:
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Rivera-Izquierdo M, Láinez-Ramos-Bossini AJ, Rivera-Izquierdo C, López-Gómez J, Fernández-Martínez NF, Redruello-Guerrero P, Martín-delosReyes LM, Martínez-Ruiz V, Moreno-Roldán E, Jiménez-Mejías E. OXA-48 Carbapenemase-Producing Enterobacterales in Spanish Hospitals: An Updated Comprehensive Review on a Rising Antimicrobial Resistance. Antibiotics (Basel) 2021; 10:antibiotics10010089. [PMID: 33477731 PMCID: PMC7832331 DOI: 10.3390/antibiotics10010089] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/07/2021] [Accepted: 01/16/2021] [Indexed: 12/14/2022] Open
Abstract
Carbapenemase-producing Enterobacterales (CPE) are significant contributors to the global public health threat of antimicrobial resistance. OXA-48-like enzymes and their variants are unique carbapenemases with low or null hydrolytic activity toward carbapenems but no intrinsic activity against expanded-spectrum cephalosporins. CPEs have been classified by the WHO as high-priority pathogens given their association with morbidity and mortality and the scarce number of effective antibiotic treatments. In Spain, the frequency of OXA-48 CPE outbreaks is higher than in other European countries, representing the major resistance mechanism of CPEs. Horizontal transfer of plasmids and poor effective antibiotic treatment are additional threats to the correct prevention and control of these hospital outbreaks. One of the most important risk factors is antibiotic pressure, specifically carbapenem overuse. We explored the use of these antibiotics in Spain and analyzed the frequency, characteristics and prevention of CPE outbreaks. Future antibiotic stewardship programs along with specific preventive measures in hospitalized patients must be reinforced and updated in Spain.
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Affiliation(s)
- Mario Rivera-Izquierdo
- Department of Preventive Medicine and Public Health, University of Granada, 18016 Granada, Spain; (C.R.-I.); (L.M.M.-d.); (V.M.-R.); (E.M.-R.); (E.J.-M.)
- Service of Preventive Medicine and Public Health, Hospital Clínico San Cecilio, 18016 Granada, Spain
- Biosanitary Institute of Granada, ibs.GRANADA, 18012 Granada, Spain
- Correspondence:
| | | | - Carlos Rivera-Izquierdo
- Department of Preventive Medicine and Public Health, University of Granada, 18016 Granada, Spain; (C.R.-I.); (L.M.M.-d.); (V.M.-R.); (E.M.-R.); (E.J.-M.)
- Service of Ginecology and Obstetrics, Hospital Universitario Virgen de las Nieves, 18014 Granada, Spain
| | - Jairo López-Gómez
- Service of Internal Medicine, San Cecilio University Hospital, 18016 Granada, Spain;
| | - Nicolás Francisco Fernández-Martínez
- Department of Preventive Medicine and Public Health, Reina Sofía University Hospital, 14004 Córdoba, Spain;
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), 14001 Córdoba, Spain
| | | | - Luis Miguel Martín-delosReyes
- Department of Preventive Medicine and Public Health, University of Granada, 18016 Granada, Spain; (C.R.-I.); (L.M.M.-d.); (V.M.-R.); (E.M.-R.); (E.J.-M.)
| | - Virginia Martínez-Ruiz
- Department of Preventive Medicine and Public Health, University of Granada, 18016 Granada, Spain; (C.R.-I.); (L.M.M.-d.); (V.M.-R.); (E.M.-R.); (E.J.-M.)
- Biosanitary Institute of Granada, ibs.GRANADA, 18012 Granada, Spain
- CIBER of Epidemiology and Public Health of Spain (CIBERESP), 28029 Madrid, Spain
| | - Elena Moreno-Roldán
- Department of Preventive Medicine and Public Health, University of Granada, 18016 Granada, Spain; (C.R.-I.); (L.M.M.-d.); (V.M.-R.); (E.M.-R.); (E.J.-M.)
- Biosanitary Institute of Granada, ibs.GRANADA, 18012 Granada, Spain
| | - Eladio Jiménez-Mejías
- Department of Preventive Medicine and Public Health, University of Granada, 18016 Granada, Spain; (C.R.-I.); (L.M.M.-d.); (V.M.-R.); (E.M.-R.); (E.J.-M.)
- Biosanitary Institute of Granada, ibs.GRANADA, 18012 Granada, Spain
- CIBER of Epidemiology and Public Health of Spain (CIBERESP), 28029 Madrid, Spain
- Teaching and Research in Family Medicine SEMERGEN-UGR, University of Granada, 18016 Granada, Spain
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Escherichia coli Sequence Type 457 Is an Emerging Extended-Spectrum-β-Lactam-Resistant Lineage with Reservoirs in Wildlife and Food-Producing Animals. Antimicrob Agents Chemother 2020; 65:AAC.01118-20. [PMID: 33020161 DOI: 10.1128/aac.01118-20] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/18/2020] [Indexed: 01/16/2023] Open
Abstract
Silver gulls carry phylogenetically diverse Escherichia coli, including globally dominant extraintestinal pathogenic E. coli (ExPEC) sequence types and pandemic ExPEC-ST131 clades; however, our large-scale study (504 samples) on silver gulls nesting off the coast of New South Wales identified E. coli ST457 as the most prevalent. A phylogenetic analysis of whole-genome sequences (WGS) of 138 ST457 samples comprising 42 from gulls, 2 from humans (Australia), and 14 from poultry farmed in Paraguay were compared with 80 WGS deposited in public databases from diverse sources and countries. E. coli ST457 strains are phylogenetic group F, carry fimH145, and partition into five main clades in accordance to predominant flagella H-antigen carriage. Although we identified considerable phylogenetic diversity among the 138 ST457 strains, closely related subclades (<100 SNPs) suggested zoonotic or zooanthroponosis transmission between humans, wild birds, and food-producing animals. Australian human clinical and gull strains in two of the clades were closely related (≤80 SNPs). Regarding plasmid content, country, or country/source, specific connections were observed, including I1/ST23, I1/ST314, and I1/ST315 disseminating bla CMY-2 in Australia, I1/ST113 carrying bla CTX-M-8 and mcr-5 in Paraguayan poultry, and F2:A-:B1 plasmids of Dutch origin being detected across multiple ST457 clades. We identified a high prevalence of nearly identical I1/ST23 plasmids carrying bla CMY-2 among Australian gull and clinical human strains. In summary, ST457 is a broad host range, geographically diverse E. coli lineage that can cause human extraintestinal disease, including urinary tract infection, and displays a remarkable ability to capture mobile elements that carry and transmit genes encoding resistance to critically important antibiotics.
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García-Betancur JC, Appel TM, Esparza G, Gales AC, Levy-Hara G, Cornistein W, Vega S, Nuñez D, Cuellar L, Bavestrello L, Castañeda-Méndez PF, Villalobos-Vindas JM, Villegas MV. Update on the epidemiology of carbapenemases in Latin America and the Caribbean. Expert Rev Anti Infect Ther 2020; 19:197-213. [PMID: 32813566 DOI: 10.1080/14787210.2020.1813023] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Carbapenemases are β-lactamases able to hydrolyze a wide range of β-lactam antibiotics, including carbapenems. Carbapenemase production in Enterobacterales, Pseudomonas aeruginosa, and Acinetobacter spp., with and without the co-expression of other β-lactamases is a serious public health threat. Carbapenemases belong to three main classes according to the Ambler classification: class A, class B, and class D. AREAS COVERED Carbapenemase-bearing pathogens are endemic in Latin America. In this review, we update the status of carbapenemases in Latin America and the Caribbean. EXPERT OPINION Understanding the current epidemiology of carbapenemases in Latin America and the Caribbean is of critical importance to improve infection control policies limiting the dissemination of multi-drug-resistant pathogens and in implementing appropriate antimicrobial therapy.
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Affiliation(s)
| | - Tobias Manuel Appel
- Grupo de Resistencia Antimicrobiana y Epidemiología Hospitalaria, Universidad El Bosque . Bogotá, Colombia
| | - German Esparza
- Programa de Aseguramiento de Calidad. PROASECAL SAS, Bogotá, Colombia
| | - Ana C Gales
- Division of Infectious Diseases, Department of Internal Medicine, Escola Paulista de Medicina/Universidade Federal de São Paulo - UNIFESP , São Paulo, Brazil
| | | | | | - Silvio Vega
- Complejo Hospitalario Metropolitano , Ciudad de Panamá, Panama
| | - Duilio Nuñez
- Infectious Diseases División, IPS Hospital Central , Asunción, Paraguay
| | - Luis Cuellar
- Servicio de Infectologia, Instituto Nacional de Enfermedades Neoplasicas , Lima, Peru
| | | | - Paulo F Castañeda-Méndez
- Department of Infectious Diseases, Hospital San Angel Inn Universidad , Ciudad de México, Mexico
| | | | - María Virginia Villegas
- Grupo de Resistencia Antimicrobiana y Epidemiología Hospitalaria, Universidad El Bosque . Bogotá, Colombia.,Centro Médico Imbanaco . Cali, Colombia
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16
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Dissemination of a 'rare' extended-spectrum β-lactamase gene bla SFO-1 mediated by epidemic clones of carbapenemase-producing Enterobacter hormaechei in China. Int J Antimicrob Agents 2020; 56:106079. [PMID: 32634604 DOI: 10.1016/j.ijantimicag.2020.106079] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 04/16/2020] [Accepted: 06/28/2020] [Indexed: 12/17/2022]
Abstract
An increasing trend of the coexistence of a rare extended-spectrum β-lactamase gene blaSFO-1 and carbapenemase genes in Enterobacteriaceae has recently been noted. This study aimed to determine the epidemiological and genetic characterisation of SFO-1-positive carbapenem-resistant Enterobacter cloacae complex (CREC) isolates. A total of 61 CREC clinical isolates were collected in the framework of a national surveillance for carbapenem-resistant Enterobacteriaceae during 2011-2015 in China. Seven SFO-1-positive CREC isolates (11.5%) were identified in four provinces, suggesting a wide dissemination of the blaSFO-1 gene among the CREC population in China. Five SFO-1-positive CREC isolates were further identified by screening 1625 genomes of E. cloacae complex strains retrieved from GenBank. The 12 SFO-1-positive CREC isolates were further identified as Enterobacter hormaechei, of which 10 belonged to epidemic clones (ST93, ST114 and ST418), indicating that these clones might largely contribute to the dissemination of blaSFO-1. Phylogenomics analysis further identified the occurrence of clonal dissemination in the community setting. The blaSFO-1-bearing plasmids were assigned to various incompatibility groups with highly diverse sizes (~104-370 kb), suggesting a wide vector range of blaSFO-1. Two types of genetic context, with and without insertion sequence IS26, were identified for the blaSFO-1 gene. The genetic context flanked by IS26 was more prevalent, thus largely facilitating the mobility of blaSFO-1. This study revealed that the blaSFO-1 gene is not as rare as previously found and that epidemic clones of CREC are responsible for its dissemination in China. These findings highlight the potential of wide dissemination of low-prevalence antimicrobial resistance genes.
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Khan SA, Shahid S, Lee CS. Green Synthesis of Gold and Silver Nanoparticles Using Leaf Extract of Clerodendrum inerme; Characterization, Antimicrobial, and Antioxidant Activities. Biomolecules 2020; 10:biom10060835. [PMID: 32486004 PMCID: PMC7356939 DOI: 10.3390/biom10060835] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 02/07/2023] Open
Abstract
Due to their versatile applications, gold (Au) and silver (Ag) nanoparticles (NPs) have been synthesized by many approaches, including green processes using plant extracts for reducing metal ions. In this work, we propose to use plant extract with active biomedical components for NPs synthesis, aiming to obtain NPs inheriting the biomedical functions of the plants. By using leaves extract of Clerodendrum inerme (C. inerme) as both a reducing agent and a capping agent, we have synthesized gold (CI-Au) and silver (CI-Ag) NPs covered with biomedically active functional groups from C. inerme. The synthesized NPs were evaluated for different biological activities such as antibacterial and antimycotic against different pathogenic microbes (B. subtilis, S. aureus, Klebsiella, and E. coli) and (A. niger, T. harzianum, and A. flavus), respectively, using agar well diffusion assays. The antimicrobial propensity of NPs further assessed by reactive oxygen species (ROS) glutathione (GSH) and FTIR analysis. Biofilm inhibition activity was also carried out using colorimetric assays. The antioxidant and cytotoxic potential of CI-Au and CI-Ag NPs was determined using DPPH free radical scavenging and MTT assay, respectively. The CI-Au and CI-Ag NPs were demonstrated to have much better antioxidant in terms of %DPPH scavenging (75.85% ± 0.67% and 78.87% ± 0.19%), respectively. They exhibited excellent antibacterial, antimycotic, biofilm inhibition and cytotoxic performance against pathogenic microbes and MCF-7 cells compared to commercial Au and Ag NPs functionalized with dodecanethiol and PVP, respectively. The biocompatibility test further corroborated that CI-Ag and CI-Au NPs are more biocompatible at the concentration level of 1–50 µM. Hence, this work opens a new environmentally-friendly path for synthesizing nanomaterials inherited with enhanced and/or additional biomedical functionalities inherited from their herbal sources.
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Affiliation(s)
- Shakeel Ahmad Khan
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong
- Correspondence: (S.A.K.); (C.-S.L.)
| | - Sammia Shahid
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan;
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong
- Correspondence: (S.A.K.); (C.-S.L.)
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18
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Garza-González E, Franco-Cendejas R, Morfín-Otero R, Echaniz-Aviles G, Rojas-Larios F, Bocanegra-Ibarias P, Flores-Treviño S, Ponce-de-León A, Rodríguez-Noriega E, Alavez-Ramírez N, Mena-Ramirez JP, Rincón-Zuno J, Fong-Camargo MG, Morales-De-la-Peña CT, Huerta-Baltazar CR, López-Jacome LE, Carnalla-Barajas MN, Soto-Noguerón A, Sanchez-Francia D, Moncada-Barrón D, Ortíz-Brizuela E, García-Mendoza L, Newton-Sánchez OA, Choy-Chang EV, Aviles-Benitez LK, Martínez-Miranda R, Feliciano-Guzmán JM, Peña-Lopez CD, Couoh-May CA, López-Gutiérrez E, Gil-Veloz M, Armenta-Rodríguez LC, Manriquez-Reyes M, Gutierrez-Brito M, López-Ovilla I, Adame-Álvarez C, Barajas-Magallón JM, Aguirre-Burciaga E, Coronado-Ramírez AM, Rosales-García AA, Sida-Rodríguez S, Urbina-Rodríguez RE, López-Moreno LI, Juárez-Velázquez GE, Martínez-Villarreal RT, Canizales-Oviedo JL, Cetina-Umaña CM, Perez-Juárez MM, González-Moreno A, Romero-Romero D, Bello-Pazos FD, Aguilar-Orozco G, Barlandas-Rendón NRE, Maldonado-Anicacio JY, Valadez-Quiroz A, Camacho-Ortiz A. The Evolution of Antimicrobial Resistance in Mexico During the Last Decade: Results from the INVIFAR Group. Microb Drug Resist 2020; 26:1372-1382. [PMID: 32027229 DOI: 10.1089/mdr.2019.0354] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background: Surveillance of antimicrobial resistance (AMR) requires an international approach with national and local strategies. Our aim was to summarize a retrospective 10-year report of antibiotic resistance of gram-positive and gram-negative bacteria in Mexico. Methods: A total of 46 centers from 22 states of Mexico participated. Databases of AMR from January 2009 to December 2018 were included for most species. The 10-year period was divided into five 2-year periods. Results: For Staphylococcus aureus, a decrease in resistance in all specimens was observed for erythromycin and oxacillin (p < 0.0001 for each). For Enterobacter spp., resistance to meropenem increased for urine specimens (p = 0.0042). For Klebsiella spp., increased drug resistance in specimens collected from blood was observed for trimethoprim/sulfamethoxazole, gentamicin, tobramycin (p < 0.0001 for each), meropenem (p = 0.0014), and aztreonam (p = 0.0030). For Acinetobacter baumannii complex, high drug resistance was detected for almost all antibiotics, including carbapenems, except for tobramycin, which showed decreased resistance for urine, respiratory, and blood isolates (p < 0.0001 for each), and for amikacin, which showed a decrease in resistance in urine specimens (p = 0.0002). An increase in resistance to cefepime was found for urine, respiratory, and blood specimens (p < 0.0001 for each). For Pseudomonas aeruginosa, aztreonam resistance increased for isolates recovered from blood (p = 0.0001). Conclusion: This laboratory-based surveillance of antibiotic resistance shows that resistance is increasing for some antibiotics in different bacterial species in Mexico and highlights the need for continuous monitoring of antibiotic resistance.
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Affiliation(s)
- Elvira Garza-González
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Universidad de Guadalajara, Guadalajara, Mexico
| | | | | | - Paola Bocanegra-Ibarias
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Samantha Flores-Treviño
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Alfredo Ponce-de-León
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | - Eduardo Rodríguez-Noriega
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Universidad de Guadalajara, Guadalajara, Mexico
| | - Norma Alavez-Ramírez
- Hospital Regional Tipo B, de Alta Especialidad Bicentenario de La Independencia, Tultitlán de Mariano Escobedo, Mexico
| | - Juan Pablo Mena-Ramirez
- Hospital General de Zona No. 21 IMSS, Centro Universitario de los Altos (CUALTOS), Universidad de Guadalajara, Tepatitlán de Morelos, Mexico
| | - Joaquín Rincón-Zuno
- Hospital Para el Niño de Toluca, Instituto Materno Infantil del Estado De México, Toluca, Mexico
| | | | | | | | - Luis Esau López-Jacome
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | | | | | | | | | - Edgar Ortíz-Brizuela
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jorge Luis Canizales-Oviedo
- Centro Universitario De Salud, Universidad Autónoma de Nuevo León, Laboratorio Pueblo Nuevo, Monterrey, Mexico
| | | | | | | | | | | | | | | | | | | | - Adrián Camacho-Ortiz
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
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Kerdsin A, Deekae S, Chayangsu S, Hatrongjit R, Chopjitt P, Takeuchi D, Akeda Y, Tomono K, Hamada S. Genomic characterization of an emerging bla KPC-2 carrying Enterobacteriaceae clinical isolates in Thailand. Sci Rep 2019; 9:18521. [PMID: 31811215 PMCID: PMC6898716 DOI: 10.1038/s41598-019-55008-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 11/20/2019] [Indexed: 01/02/2023] Open
Abstract
The rapidly increasing prevalence of carbapenem-resistant Enterobacteriaceae (CRE) over the past decade has increased concern in healthcare facilities and the impact on public health. The prevalence of blaKPC (KPC) in Thailand remains very low; only blaKPC-13 has been described previously. This study is the first to describe the characteristics of blaKPC-2-carrying Klebsiella pneumoniae, Escherichia coli, and Enterobacter asburiae in Thailand. The prevalence rate of blaKPC-2-carrying isolates was 0.13% among CRE isolates in our study. Based on carbapenem susceptibility testing, K. pneumoniae C1985 was resistant to meropenem and ertapenem, E. coli C1992 was resistant to meropenem, imipenem, and ertapenem, and E. asburiae C2135 was only resistant to imipenem. K. pneumoniae C1985 carried blaKPC-2, blaSHV-11, fosA, oqxA, and oqxB, while E. coli C1992 contained blaKPC-2 and mdf(A) and E. asburiae C2135 harbored blaKPC-2, blaACT-2, and qnrE1. The genetic features of blaKPC-2 in the 3 isolates revealed identical rearrangement and flanking regions. Analysis of genomic sequences from these 3 isolates revealed that the sequence types of K. pneumoniae C1985, E. coli C1992, and E. asburiae C2135 were ST4008, ST7297, and ST1249, respectively. The 3 blaKPC-2 isolates were from individual living cases. Two cases were colonization for K. pneumoniae C1985 and E. asburiae C2135 and the third case was hospital-acquired infection of E. coli C1992. Although the prevalence of blaKPC-2-carrying CRE is relatively low in this study, continued surveillance and close monitoring are warranted. In addition, prompt or early detection of CRE and strict implementation of infection control are essential to prevent outbreaks or rapid spread in hospitals.
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Affiliation(s)
- Anusak Kerdsin
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand.
| | | | | | - Rujirat Hatrongjit
- Faculty of Science and Engineering, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Peechanika Chopjitt
- Faculty of Public Health, Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Sakon Nakhon, Thailand
| | - Dan Takeuchi
- Japan-Thailand Research Collaboration Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Yukihiro Akeda
- Japan-Thailand Research Collaboration Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Osaka University, Osaka, Japan
| | - Kazunori Tomono
- Department of Infection Control and Prevention, Graduate School of Medicine, Osaka University, Osaka, Japan.,Division of Infection Control and Prevention, Osaka University Hospital, Osaka University, Osaka, Japan
| | - Shigeyuki Hamada
- Japan-Thailand Research Collaboration Center for Infectious Diseases, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
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Abstract
Surveillance studies have shown that OXA-48-like carbapenemases are the most common carbapenemases in Enterobacterales in certain regions of the world and are being introduced on a regular basis into regions of nonendemicity, where they are responsible for nosocomial outbreaks. OXA-48, OXA-181, OXA-232, OXA-204, OXA-162, and OXA-244, in that order, are the most common enzymes identified among the OXA-48-like carbapenemase group. OXA-48 is associated with different Tn1999 variants on IncL plasmids and is endemic in North Africa and the Middle East. OXA-162 and OXA-244 are derivatives of OXA-48 and are present in Europe. OXA-181 and OXA-232 are associated with ISEcp1, Tn2013 on ColE2, and IncX3 types of plasmids and are endemic in the Indian subcontinent (e.g., India, Bangladesh, Pakistan, and Sri Lanka) and certain sub-Saharan African countries. Overall, clonal dissemination plays a minor role in the spread of OXA-48-like carbapenemases, but certain high-risk clones (e.g., Klebsiella pneumoniae sequence type 147 [ST147], ST307, ST15, and ST14 and Escherichia coli ST38 and ST410) have been associated with the global dispersion of OXA-48, OXA-181, OXA-232, and OXA-204. Chromosomal integration of bla OXA-48 within Tn6237 occurred among E. coli ST38 isolates, especially in the United Kingdom. The detection of Enterobacterales with OXA-48-like enzymes using phenotypic methods has improved recently but remains challenging for clinical laboratories in regions of nonendemicity. Identification of the specific type of OXA-48-like enzyme requires sequencing of the corresponding genes. Bacteria (especially K. pneumoniae and E. coli) with bla OXA-48, bla OXA-181, and bla OXA-232 are emerging in different parts of the world and are most likely underreported due to problems with the laboratory detection of these enzymes. The medical community should be aware of the looming threat that is posed by bacteria with OXA-48-like carbapenemases.
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Yang X, Wang D, Zhou Q, Nie F, Du H, Pang X, Fan Y, Bai T, Xu Y. Antimicrobial susceptibility testing of Enterobacteriaceae: determination of disk content and Kirby-Bauer breakpoint for ceftazidime/avibactam. BMC Microbiol 2019; 19:240. [PMID: 31675928 PMCID: PMC6824082 DOI: 10.1186/s12866-019-1613-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 10/15/2019] [Indexed: 02/21/2023] Open
Abstract
BACKGROUND Detection of ceftazidime/avibactam (CAZ/AVI) antibacterial activity is absolutely vital with the rapid growth of carbapenem resistant Enterobacteriaceae (CRE). But now, there is no available automated antimicrobial susceptibility testing card for CAZ/AVI, so Kirby-Bauer has become an economical and practical method for detecting CAZ/AVI antibacterial activity against Enterobacteriaceae. RESULT In this study, antimicrobial susceptibility testing of CAZ/AVI against 386 Enterobacteriaceae (188 Klebsiella pneumoniae, 122 Escherichia coli, 76 Enterobacter cloacae) isolated from clinical patients was performed by broth microdilution. Of the 386 strains, 54 extended spectrum β lactamases negative (ESBL(-)), 104 extended spectrum β lactamases positive (ESBL(+)), 228 CRE. 287 isolates were susceptible to CAZ/AVI and 99 isolates were resistant to CAZ/AVI. At the same time, to obtain optimal content avibactam (AVI) disk containing ceftazidime (30 μg), inhibition zone diameter of four kinds of ceftazidime (30 μg) disk containing different AVI content (0 μg, 10 μg, 25 μg, 50 μg) were tested by Kirby-Bauer method. The microdilution broth method interpretation was used as the standard to estimate susceptible or resistance and then coherence analysis was carried out between Kirby-Bauer and broth microdilution. The result shows the inhibition zone diameter of 30 μg/50 μg disk, susceptible isolates: 20.5 mm-31.5 mm, resistance isolates: 8.25 mm-21.5 mm. The inhibition zone diameter of 30 μg/25 μg disk, susceptible isolates: 19.7 mm-31.3 mm, resistance isolates: 6.5 mm-19.2 mm. The inhibition zone diameter of 30 μg/10 μg disk, susceptible isolates: 19.5 mm-31 mm, resistance isolates: 6.5 mm-11 mm. The inhibition zone diameter of ceftazidime (30 μg), susceptible isolates: 6.5 mm-27.5 mm, resistance isolates 6.5 mm. CONCLUSION Our results show that 30 μg/50 μg, 30 μg/25 μg, 30 μg/10 μg CAZ/AVI disk have significant statistical differences to determinate CAZ/AVI antibacterial activity, but for 30 μg/50 μg disk, there has a cross section between susceptible isolates (minimum 20.5 mm) and resistance isolates (maximum 21.5 mm). For 30 μg/25 μg disk, it is hard to distinguish the difference between susceptible isolates (minimum 19.7 mm) and resistance isolates (maximum 19.2 mm), so 30 μg/10 μg CAZ/AVI disk is more conducive to determinate antibacterial activity.
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Affiliation(s)
- Xianggui Yang
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Dan Wang
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Qin Zhou
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Fang Nie
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Hongfei Du
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Xueli Pang
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Yingzi Fan
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Tingting Bai
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China
| | - Ying Xu
- Department of Laboratory Medicine, the First Affiliated Hospital of Chengdu Medical College, 278 Baoguang Road, Xindu, Chengdu, Sichuan, 610500, People's Republic of China.
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High Prevalence of Antimicrobial Resistance Among Gram-Negative Isolated Bacilli in Intensive Care Units at a Tertiary-Care Hospital in Yucatán Mexico. ACTA ACUST UNITED AC 2019; 55:medicina55090588. [PMID: 31540314 PMCID: PMC6780114 DOI: 10.3390/medicina55090588] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/05/2019] [Accepted: 09/11/2019] [Indexed: 11/17/2022]
Abstract
Background and Objectives: Antimicrobial resistance (AMR) is increasing worldwide and imposes significant life-threatening risks to several different populations, especially to those in intensive care units (ICU). The most commonly isolated organisms in ICU comprise gram-negative bacilli (GNB), and these represent a leading cause of serious infections. This study was conducted to describe the prevalence of resistance in GNB isolated from patients in adults, pediatric, and neonatal ICU in a tertiary-care hospital in Mérida, Mexico. Materials and Methods: A retrospective study was done on samples collected in Neonatal (NICU), Pediatric (PICU) and Adult (AICU) ICU of Unidad Médica de Alta Especialidad, Instituto Mexicano del Seguro Social in Mérida, México. The identification of isolates and antimicrobial susceptibility testing were performed using an automated system. Results: A total of 517 GNB strains were isolated. The most common positive culture was bronchial secretions. Pseudomonas aeruginosa was the prevalent pathogen in NICU and PICU, whereas Escherichia coli was common in the AICU. Overall, GNB exhibited a high resistance rates for Ampicillin (95.85%), Cefuroxime (84.17%), Piperacillin (82.93%), Cefotaxime (78.07%), Ceftriaxone (77.41%), Aztreonam (75.23%), Cefazolin (75.00%), and Ceftazidime (73.19%). There are significant differences in the resistance rates of GNB from different ICUs for penicillins, cephalosporins, carbapenems and fluoroquinolones drugs. Escherichia coli (multidrug-resistant [MDR] = 91.57%, highly resistant microorganisms [HRMO] = 90.36%) and Acinetobacter baumannii (MDR = 86.79%, HRMO = 83.02%) exhibited the highest percentage of MDR and HRMO profiles. The prevalence of the extended-spectrum beta-lactamases (ESBL)-producing isolates was 83.13% in E. coli, 78.84% in Klebsiella pneumoniae, and 66.67% in Proteus mirabilis, respectively. Conclusions: The high resistance rates to drugs were exhibited by our GNB isolates. Continuous surveillance and control of the use of antimicrobials are urgently needed to reduce the emergence and spreading of MDR, HRMO, and/or ESBL-producing bacilli.
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Merida-Vieyra J, De Colsa-Ranero A, Arzate-Barbosa P, Arias-de la Garza E, Méndez-Tenorio A, Murcia-Garzón J, Aquino-Andrade A. First clinical isolate of Escherichia coli harboring mcr-1 gene in Mexico. PLoS One 2019; 14:e0214648. [PMID: 30947268 PMCID: PMC6448934 DOI: 10.1371/journal.pone.0214648] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 03/17/2019] [Indexed: 11/19/2022] Open
Abstract
Our aim in this report was to describe the characteristics of the first clinical isolate of Escherichia coli (EC-PAG-733) harboring the mcr-1 gene found in Mexico. This isolate was obtained from a fecal sample from a young child with an oncological condition. We obtained the whole-genome sequence using next-generation sequencing and analyzed the sequence by bioinformatics tools. EC-PAG-733 was resistant to third- and fourth-generation cephalosporins and was susceptible to all carbapenems and amikacin; it was also resistant to ciprofloxacin, levofloxacin, gentamicin and colistin at a minimum inhibitory concentration (MIC) of 4 μg/mL. This isolate was classified as O11:H25-ST457. EC-PAG-733 harbored an ESBL type CTX-M-55 as well as several virulence factors that have been associated with Enteroaggregative Escherichia coli (EAEC). The mcr-1 gene was located within an IncI2 plasmid. The results of this whole genome shotgun project were deposited in DDBJ/ENA/GenBank under the accession number QKXE00000000.
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Affiliation(s)
- Jocelin Merida-Vieyra
- Molecular Microbiology Laboratory, Instituto Nacional de Pediatria (National Institute of Pediatrics INP), Mexico City, Mexico
| | - Agustín De Colsa-Ranero
- Molecular Microbiology Laboratory, Instituto Nacional de Pediatria (National Institute of Pediatrics INP), Mexico City, Mexico.,Pediatric Infectious Diseases Department, INP, Mexico City, Mexico
| | | | | | - Alfonso Méndez-Tenorio
- Escuela Nacional de Ciencias Biologicas, Instituto Politecnico Nacional (National School of Biological Sciences, National Polytechnic Institute), Mexico City, Mexico
| | - Jazmin Murcia-Garzón
- Escuela Nacional de Ciencias Biologicas, Instituto Politecnico Nacional (National School of Biological Sciences, National Polytechnic Institute), Mexico City, Mexico
| | - Alejandra Aquino-Andrade
- Molecular Microbiology Laboratory, Instituto Nacional de Pediatria (National Institute of Pediatrics INP), Mexico City, Mexico
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24
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Garza-González E, Morfín-Otero R, Mendoza-Olazarán S, Bocanegra-Ibarias P, Flores-Treviño S, Rodríguez-Noriega E, Ponce-de-León A, Sanchez-Francia D, Franco-Cendejas R, Arroyo-Escalante S, Velázquez-Acosta C, Rojas-Larios F, Quintanilla LJ, Maldonado-Anicacio JY, Martínez-Miranda R, Ostos-Cantú HL, Gomez-Choel A, Jaime-Sanchez JL, Avilés-Benítez LK, Feliciano-Guzmán JM, Peña-López CD, Couoh-May CA, Molina-Jaimes A, Vázquez -Narvaez EG, Rincón-Zuno J, Rivera-Garay R, Galindo-Espinoza A, Martínez-Ramirez A, Mora JP, Corte- Rojas RE, López-Ovilla I, Monroy-Colin VA, Barajas-Magallón JM, Morales-De-la-Peña CT, Aguirre-Burciaga E, Coronado-Ramírez M, Rosales-García AA, Ayala-Tarín MDJ, Sida-Rodríguez S, Pérez-Vega BA, Navarro-Rodríguez A, Juárez-Velázquez GE, Cetina-Umaña CM, Mena-Ramírez JP, Canizales-Oviedo J, Moreno-Méndez MI, Romero-Romero D, Arévalo-Mejía A, Cobos-Canul DI, Aguilar-Orozco G, Silva-Sánchez J, Camacho-Ortiz A. A snapshot of antimicrobial resistance in Mexico. Results from 47 centers from 20 states during a six-month period. PLoS One 2019; 14:e0209865. [PMID: 30913243 PMCID: PMC6435111 DOI: 10.1371/journal.pone.0209865] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/12/2018] [Indexed: 01/22/2023] Open
Abstract
Aim We aimed to assess the resistance rates of antimicrobial-resistant, in bacterial pathogens of epidemiological importance in 47 Mexican centers. Material and methods In this retrospective study, we included a stratified sample of 47 centers, covering 20 Mexican states. Selected isolates considered as potential causatives of disease collected over a 6-month period were included. Laboratories employed their usual methods to perform microbiological studies. The results were deposited into a database and analyzed with the WHONET 5.6 software. Results In this 6-month study, a total of 22,943 strains were included. Regarding Gram-negatives, carbapenem resistance was detected in ≤ 3% in Escherichia coli, 12.5% in Klebsiella sp. and Enterobacter sp., and up to 40% in Pseudomonas aeruginosa; in the latter, the resistance rate for piperacillin-tazobactam (TZP) was as high as 19.1%. In Acinetobacter sp., resistance rates for cefepime, ciprofloxacin, meropenem, and TZP were higher than 50%. Regarding Gram-positives, methicillin resistance in Staphylococcus aureus (MRSA) was as high as 21.4%, and vancomycin (VAN) resistance reached up to 21% in Enterococcus faecium. Acinetobacter sp. presented the highest multidrug resistance (53%) followed by Klebsiella sp. (22.6%) and E. coli (19.4%). Conclusion The multidrug resistance of Acinetobacter sp., Klebsiella sp. and E. coli and the carbapenem resistance in specific groups of enterobacteria deserve special attention in Mexico. Vancomycin-resistant enterococci (VRE) and MRSA are common in our hospitals. Our results present valuable information for the implementation of measures to control drug resistance.
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Affiliation(s)
- Elvira Garza-González
- Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León, Mexico
- * E-mail:
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Guadalajara, Jalisco, Mexico
| | | | | | | | | | - Alfredo Ponce-de-León
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | | | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | | | | | - Fabián Rojas-Larios
- Hospital Regional Universitario de los Servicios de Salud del Estado de Colima y Facultad de Medicina, Universidad de Colima, Colima, Colima, Mexico
| | | | | | - Rafael Martínez-Miranda
- Hospital General de Mexicali/Facultad de Medicina Mexicali UABC, Mexicali, Baja California, Mexico
| | | | | | | | | | | | | | - Carlos A. Couoh-May
- Hospital General de Mérida Yucatán “Dr. Agustín O ‘Horan”, Mérida, Yucatán, Mexico
| | - Aaron Molina-Jaimes
- Hospital Regional de Alta Especialidad Bicentenario de la Independencia, Tultitlán de Mariano Escobedo, Estado de México, Mexico
| | | | | | - Raúl Rivera-Garay
- Hospital Regional de Alta Especialidad del Bajío, León, Guanajuato, Mexico
| | | | | | - Javier P. Mora
- Hospital de Alta Especialidad de Veracruz, Veracruz, Veracruz, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Juan P. Mena-Ramírez
- Hospital General de zona 21 Tepatitlán de Morelos, Tepatitlán de Morelos, Jalisco, Mexico
| | - Jorge Canizales-Oviedo
- Centro Universitario de Salud, UANL Pueblo Nuevo, Monterrey, Nuevo León, Mexico
- Centro Universitario de Salud, UANL Vicente Guerrero, Monterrey, Nuevo León, Mexico
| | | | - Daniel Romero-Romero
- Laboratorio de Análisis Bioquímico Clínicos "Louis Pasteur", Toluca, Estado de México, Mexico
| | | | | | | | | | - Adrián Camacho-Ortiz
- Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León, Mexico
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25
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Alcántar-Curiel MD, Fernández-Vázquez JL, Toledano-Tableros JE, Gayosso-Vázquez C, Jarillo-Quijada MD, López-Álvarez MDR, Giono-Cerezo S, Santos-Preciado JI. Emergence of IncFIA Plasmid-Carrying blaNDM-1 Among Klebsiella pneumoniae and Enterobacter cloacae Isolates in a Tertiary Referral Hospital in Mexico. Microb Drug Resist 2019; 25:830-838. [PMID: 30835632 DOI: 10.1089/mdr.2018.0306] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The emergence of New Delhi metallo-β-lactamase 1 on carbapenemase-producing bacteria has raised a major worldwide public health concern. This study reports the dissemination of blaNDM-1 in carbapenem-resistant isolates that caused nosocomial infections in a tertiary hospital in Mexico City. Seven Enterobacter cloacae and three Klebsiella pneumoniae nosocomial isolates from the same time period harbored the blaNDM-1 gene. The resistance phenotype and the blaNDM-1 gene were transferred through conjugative plasmids belonging to the incompatibility group IncFIA of 85, 101, and 195 kb in E. cloacae and 95 and 101 kb in K. pneumoniae isolates. Restriction fragment length polymorphism analysis showed that blaNDM-1 was carried in similar plasmids with molecular sizes of 101 and 85 kb, each one in three isolates of E. cloacae and one of 101 kb on two isolates of K. pneumoniae. During a 9-month period, six of the seven isolates of E. cloacae analyzed harbored blaNDM-1 and belonged to clone E1. Similarly, over a 5-month period, two of the three K. pneumoniae isolates that harbored blaNDM-1 belonged to clone K1. These results demonstrate the horizontal transfer of blaNDM-1 between different bacterial species, dissemination of clones with high levels of resistance to carbapenems, and underscore the need for heightened measures to control their further spread.
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Affiliation(s)
- María Dolores Alcántar-Curiel
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - José Luis Fernández-Vázquez
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - José Eduardo Toledano-Tableros
- 2 Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México
| | - Catalina Gayosso-Vázquez
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Ma Dolores Jarillo-Quijada
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | - Silvia Giono-Cerezo
- 2 Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México
| | - José Ignacio Santos-Preciado
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
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26
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Duran-Bedolla J, Bocanegra-Ibarias P, Silva-Sanchez J, Garza-González E, Morfín-Otero R, Hernández-Castro R, Lozano L, Garza-Ramos U, Barrios-Camacho H. Genetic characterization of multiple NDM-1-producing clinical isolates in Mexico. Diagn Microbiol Infect Dis 2019; 94:195-198. [PMID: 30642720 DOI: 10.1016/j.diagmicrobio.2018.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/21/2018] [Accepted: 12/02/2018] [Indexed: 10/27/2022]
Affiliation(s)
- Josefina Duran-Bedolla
- Instituto Nacional de Salud Pública (INSP), CISEI, Laboratorio de Resistencia Bacteriana, Cuernavaca, Morelos, Mexico
| | - Paola Bocanegra-Ibarias
- Servicio de Gastroenterología, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Jesús Silva-Sanchez
- Instituto Nacional de Salud Pública (INSP), CISEI, Laboratorio de Resistencia Bacteriana, Cuernavaca, Morelos, Mexico
| | - Elvira Garza-González
- Servicio de Gastroenterología, Hospital Universitario Dr. José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | - Rayo Morfín-Otero
- Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Hospital Civil de Guadalajara Fray Antonio Alcalde, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | | | - L Lozano
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Ulises Garza-Ramos
- Instituto Nacional de Salud Pública (INSP), CISEI, Laboratorio de Resistencia Bacteriana, Cuernavaca, Morelos, Mexico.
| | - Humberto Barrios-Camacho
- Instituto Nacional de Salud Pública (INSP), CISEI, Laboratorio de Resistencia Bacteriana, Cuernavaca, Morelos, Mexico.
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Maqbool Q, Kruszka D, Kachlicki P, Franklin G. Retracted Article: Organometallic Ag nanostructures prepared using Hypericum perforatum extract are highly effective against multidrug-resistant bacteria. RSC Adv 2018; 8:30562-30572. [PMID: 35546844 PMCID: PMC9085381 DOI: 10.1039/c8ra05655b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 08/14/2018] [Indexed: 01/05/2023] Open
Abstract
Hypericum perforatum is a rich source of high-value plant secondary metabolites that have been used in the treatment of various ailments since ancient times. Herein, we report the conversion of bulk Ag+ ions into highly potent organometallic Ag nanostructures (OM-Ag-NS) using H. perforatum extract as a phytochelating agent for the first time. Analysis by X-ray diffraction (XRD) of OM-Ag-NS revealed that they are of a hybrid nature and include pure Ag crystal planes and Ag-organic-complex crystal planes. An investigation by scanning electron microscopy (SEM) of the NS revealed the rough nanocube-like morphology of OM-Ag-NS with an average particle size of 32 nm. Ultra-performance liquid chromatography-diode array detector (UPLC-DAD) and Fourier transform infrared (FTIR) spectroscopy of H. perforatum extract and the residue validated the utilization of phytochelating compounds in the synthesis process of OM-Ag-NS. Thermogravimetric analysis (TGA) supplemented the findings of UPLC-DAD and showed the thermal loss of the organic capping agent around OM-Ag-NS between 300 and 320 °C. NanoDrop-ultraviolet and visible (UV) spectroscopic analysis showed that the tailored bandgap energy of OM-Ag-NS was 2.82 eV. Moreover, compared with chemically stabilized Ag nanostructures (CS-Ag-NS), OM-Ag-NS exhibited promising performance against highly virulent multidrug-resistant Escherichia coli (NDM-1) and Klebsiella pneumoniae (KPC). Our current findings suggest that H. perforatum is a top candidate for tailoring the potential of NS towards various biological activities.
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Affiliation(s)
- Qaisar Maqbool
- Institute of Plant Genetics of the Polish Academy of Sciences 34 Strzeszynska Street 60-479 Poznan Poland
| | - Dariusz Kruszka
- Institute of Plant Genetics of the Polish Academy of Sciences 34 Strzeszynska Street 60-479 Poznan Poland
| | - Piotr Kachlicki
- Institute of Plant Genetics of the Polish Academy of Sciences 34 Strzeszynska Street 60-479 Poznan Poland
| | - Gregory Franklin
- Institute of Plant Genetics of the Polish Academy of Sciences 34 Strzeszynska Street 60-479 Poznan Poland
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