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Dos Santos PAS, Silva MJA, Gouveia MIM, Lima LNGC, Quaresma AJPG, De Lima PDL, Brasiliense DM, Lima KVB, Rodrigues YC. The Prevalence of Metallo-Beta-Lactamese-(MβL)-Producing Pseudomonas aeruginosa Isolates in Brazil: A Systematic Review and Meta-Analysis. Microorganisms 2023; 11:2366. [PMID: 37764210 PMCID: PMC10534863 DOI: 10.3390/microorganisms11092366] [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: 07/26/2023] [Revised: 08/12/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
The purpose of the current study is to describe the prevalence of Pseudomonas aeruginosa (PA)-producing MβL among Brazilian isolates and the frequency of blaSPM-1 in MβL-PA-producing isolates. From January 2009 to August 2023, we carried out an investigation on this subject in the internet databases SciELO, PubMed, Science Direct, and LILACS. A total of 20 papers that met the eligibility requirements were chosen by comprehensive meta-analysis software v2.2 for data retrieval and analysis by one meta-analysis using a fixed-effects model for the two investigations. The prevalence of MβL-producing P. aeruginosa was 35.8% or 0.358 (95% CI = 0.324-0.393). The studies' differences were significantly different from one another (x2 = 243.15; p < 0.001; I2 = 92.18%), so they were divided into subgroups based on Brazilian regions. There was indication of asymmetry in the meta-analyses' publishing bias funnel plot; so, a meta-regression was conducted by the study's publication year. According to the findings of Begg's test, no discernible publishing bias was found. blaSPM-1 prevalence was estimated at 66.9% or 0.669 in MβL-PA isolates (95% CI = 0.593-0.738). The analysis of this one showed an average heterogeneity (x2 = 90.93; p < 0.001; I2 = 80.20%). According to the results of Begg's test and a funnel plot, no discernible publishing bias was found. The research showed that MβL-P. aeruginosa and SPM-1 isolates were relatively common among individuals in Brazil. P. aeruginosa and other opportunistic bacteria are spreading quickly and causing severe infections, so efforts are needed to pinpoint risk factors, reservoirs, transmission pathways, and the origin of infection.
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Affiliation(s)
- Pabllo Antonny Silva Dos Santos
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (L.N.G.C.L.); (P.D.L.D.L.); (D.M.B.); (K.V.B.L.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
| | - Marcos Jessé Abrahão Silva
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Maria Isabel Montoril Gouveia
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
| | - Luana Nepomuceno Gondim Costa Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (L.N.G.C.L.); (P.D.L.D.L.); (D.M.B.); (K.V.B.L.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Ana Judith Pires Garcia Quaresma
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
| | - Patrícia Danielle Lima De Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (L.N.G.C.L.); (P.D.L.D.L.); (D.M.B.); (K.V.B.L.)
| | - Danielle Murici Brasiliense
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (L.N.G.C.L.); (P.D.L.D.L.); (D.M.B.); (K.V.B.L.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Karla Valéria Batista Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (L.N.G.C.L.); (P.D.L.D.L.); (D.M.B.); (K.V.B.L.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Yan Corrêa Rodrigues
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (M.I.M.G.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
- Department of Natural Science, State University of Pará (DCNA/UEPA), Belém 66050-540, PA, Brazil
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Lee K, Lee G, Lee S, Park CY. Advances in ophthalmic drug delivery technology for postoperative management after cataract surgery. Expert Opin Drug Deliv 2022; 19:945-964. [PMID: 35917497 DOI: 10.1080/17425247.2022.2109624] [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: 11/04/2022]
Abstract
INTRODUCTION Cataract surgery is becoming more common due to an aging world population. Intraocular lenses and surgical technique have developed remarkably recently, but the development of postoperative medication to prevent postsurgery complications has been relatively delayed. We still largely depend on eye drops for the management of post-cataract-surgery patients. Mental and physical problems that often occur in elderly cataract patients make it difficult for patients to apply eye drops by themselves. It is necessary to develop new effective drug delivery methods. AREAS COVERED This updated review article provides a brief review of why drug management is needed following cataract surgery and an overview of current developments in new drug delivery methods for ophthalmic treatment. In particular, various novel drug delivery methods that can be used for post-cataract-surgery management and their current development stages are extensively reviewed. EXPERT OPINION Rapidly developing technologies, such as intraocular and external ophthalmic implants, polymers, and nanotechnology, are being actively applied to develop novel drug delivery systems for safe and effective management after cataract surgery. Their goal is to achieve sufficient drug release for the desired duration with a single application. These will largely replace the inconvenience of eye drops for elderly patients in the future.
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Affiliation(s)
- Kangmin Lee
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
| | - Gahye Lee
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
| | - Soomin Lee
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
| | - Choul Yong Park
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
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Önal N, Avşar C, Aras ES. Detection of multidrug-resistant Pseudomonas isolates and distribution of denitrifying functional genes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2021; 31:1015-1031. [PMID: 31994901 DOI: 10.1080/09603123.2020.1720619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
The aim of this study was to characterize 59 Pseudomonas strains isolated from soil samples in terms of Inducible Beta-Lactamase (IBL), fluorescence production, antibiotic resistance, presence of plasmids and genetic diversity, as well as denitrification functional genes. Fourteen out of fifty-nine (23.7%) Pseudomonas isolates were identified as multidrug-resistant. To evaluate the contribution of denitrification functional genes to genetic diversity, PCR products were screened by RFLP. It was determined that the 18, 6 and 22 out of 59 isolate harbored nirS, nirK and nosZ genes, respectively. It was found that the 37 isolates were nosZ-negative. Thus, these results suggest that nosZ gene-missing pseudomonad denitrifiers are partly contribute to N2O emission. Moreover, nirS, nirK and nosZ genes were found to be positive with IBL and negatively correlated with fluorescence production. These results suggest that Pseudomonas species have important roles in soil and even in biosphere due to their diversity and genetic factors.
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Affiliation(s)
- Nur Önal
- Department of Biology, Faculty of Arts and Sciences, Sinop University, Sinop, Turkey
| | - Cumhur Avşar
- Department of Biology, Faculty of Arts and Sciences, Sinop University, Sinop, Turkey
| | - E Sümer Aras
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
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Dogonchi AA, Ghaemi EA, Ardebili A, Yazdansetad S, Pournajaf A. Metallo-β-lactamase-mediated resistance among clinical carbapenem-resistant Pseudomonas aeruginosa isolates in northern Iran: A potential threat to clinical therapeutics. Tzu Chi Med J 2018; 30:90-96. [PMID: 29875589 PMCID: PMC5968749 DOI: 10.4103/tcmj.tcmj_101_17] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Objective: Carbapenems are effective agents to treat multidrug-resistant (MDR) strains of bacteria, including Pseudomonas aeruginosa. However, there is a potential threat of emergence of carbapenem-resistant P. aeruginosa (CRPA). The aim of this study was to determine antibiotic susceptibility patterns and metallo-beta-lactamase (MBL)-mediated resistance in clinical P. aeruginosa isolates. Materials and Methods: Different clinical specimens were subjected to conventional culture-based identification of P. aeruginosa. Antimicrobial susceptibility patterns and MBL production were evaluated using the Kirby-Bauer and combined double-disk synergy test methods, respectively. Multiplex polymerase chain reaction was performed to investigate the presence of the blaIMP, blaVIM, blaNDM, blaSPM, and blaSIM genes. Results: A total of 71 clinical P. aeruginosa isolates were recovered, of which 28.17% were identified as CRPA. The most active antibiotics were colistin and polymyxin B (92.96% susceptibility to each). A total of 35% and 50% of CRPA isolates were MDR and extensively drug-resistant (XDR), respectively. MBL activity was shown in 20% of CRPA. A total of 90%, 40%, and 5% of CRPA isolates harbored the blaIMP, blaVIM, and blaNDM genes, respectively. No correlation was found between the MBL-encoding genes of P. aeruginosa and patient characteristics. Conclusion: Although the prevalence of CRPA in our therapeutic centers was relatively low, this rate of carbapenem resistance reflects a threat limiting treatment choices. A high prevalence of MDR/XDR phenotypes among the MBL-producer isolates suggests the need for continuous assessment of antimicrobial susceptibility and surveillance of antibiotic prescription. In addition, infection control measures are needed to prevent further dissemination of these organisms.
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Affiliation(s)
- Abdol Ahad Dogonchi
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Ezzat Allah Ghaemi
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abdollah Ardebili
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Sajjad Yazdansetad
- Laboratory Sciences Research Center, Golestan University of Medical Sciences, Gorgan, Iran.,Department of Microbiology, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Abazar Pournajaf
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Extended spectrum and metalo beta-lactamase producing airborne Pseudomonas aeruginosa and Acinetobacter baumanii in restricted settings of a referral hospital: a neglected condition. Antimicrob Resist Infect Control 2017; 6:106. [PMID: 29075483 PMCID: PMC5654089 DOI: 10.1186/s13756-017-0266-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 10/17/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Frequently encountered multidrug-resistant bacterial isolates of P. aeruginosa and A. baumannii are common and prevalent in a hospital environment. The aim of this study was to determine the prevalence and pattern of antibiotic resistance, extended spectrum and metallo beta-lactamase producing P. aeruginosa and A. baumannii isolates from restricted settings of indoor air hospital environment. METHODS A hospital-based cross-sectional study was conducted in Wolaita Sodo University Teaching and referral Hospital, Ethiopia from December 1/2015 to April 30/2015. The Air samples were collected from delivery room, intensive care unit and operation theatre of the hospital by active, Anderson six slate sampler technique during the first week of the months, twice a week during Monday's and Friday's. Standard microbiological procedures were followed to isolate P. aeruginosa and A. baumannii. Susceptibility testing was performed on isolates using the Kirby-Bauer disk diffusion technique. Extended spectrum beta lactamase production was detected by double disc synergy test and Imipenem-resistant isolates were screened for producing Metallo-beta lactamase. RESULTS A total number of 216 indoor air samples were collected from the delivery room, intensive care unit, and operation room. Correspondingly, 43 A. baumannii isolates were identified (13 from delivery room, 21 from intensive care unit and 9 from operation room). Likewise 24 P. aeruginosa isolates were obtained (4 from delivery room, 13 from intensive care unit and 7 from operation room). Extended spectrum beta lactamase and metalo-beta lactamase production were observed in 24 (55.8%) and 13 (30.2%) isolates of A. baumannii respectively, whereas P. aeruginosa showed 15 (62.5%) extended spectrum beta lactamase and 9 (37.5%) metallo-beta lactamase production. CONCLUSIONS Extended spectrum beta lactamase and metallo-beta lactamase producing bacteria in hospital air is a new dimension for specific setting of the study area where antimicrobial resistance is increasing and surgical site infection is prevalent. So, identification of these microorganisms has a great role in reducing the burden of antibiotic resistance and could also provide a significant input for framing hospital infection control policies.
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Kateete DP, Nakanjako R, Okee M, Joloba ML, Najjuka CF. Genotypic diversity among multidrug resistant Pseudomonas aeruginosa and Acinetobacter species at Mulago Hospital in Kampala, Uganda. BMC Res Notes 2017; 10:284. [PMID: 28705201 PMCID: PMC5513047 DOI: 10.1186/s13104-017-2612-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 07/08/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Multidrug resistant Pseudomonas aeruginosa and Acinetobacter species are common causes of nosocomial infections worldwide. Recently we reported the occurrence of carbapenem resistant Enterobacteriaceae, P. aeruginosa and Acinetobacter species at Mulago National Referral Hospital in Kampala, Uganda, but the isolates were not analyzed for genetic relatedness. Herein we report the intra-species genotypic diversity among P. aeruginosa and Acinetobacter baumannii isolated from hospitalized patients and the environment at Mulago Hospital, using repetitive elements-based PCR (Rep-PCR) genotyping. RESULTS A total of 736 specimens from hospitalized patients were processed for culture and sensitivity testing yielding 9 (1.2%) P. aeruginosa and 7 (0.95%) A. baumannii. Similarly, 100 samples from the hospital environment were processed yielding 33 (33%) P. aeruginosa and 13 (13%) A. baumannii. Altogether, 62 non-repetitive isolates were studied (42 P. aeruginosa and 20 A. baumannii), of which 38% (16/42) P. aeruginosa and 40% (8/20) A. baumannii were multidrug resistant (isolates resistant to three or more classes of antimicrobials). Carbapenem resistance prevalence was 33 and 21% for P. aeruginosa from patients and the environment, respectively, while it was 14 and 86% for A. baumannii from patients and environment, respectively. Cluster analysis of the Rep-PCR fingerprints revealed a high level of genetic diversity among the isolates within each species as few isolates were clustered (at 100% level of similarity). More to this, the clustered isolates revealed a complex nature of multidrug resistant P. aeruginosa and A. baumannii clones circulating at Mulago Hospital. Importantly, certain isolates from the environment and patients were clustered, implying that hospitalized patients at Mulago were probably infected with strains from the environment. CONCLUSIONS The prevalence of multidrug resistant P. aeruginosa and A. baumannii is high at Mulago Hospital but carbapenem resistance prevalence remains relatively low in isolates from hospitalized patients. Importantly, the prevalence of carbapenem resistance in isolates from the environment is high implying the infection control practices at the hospital might be inadequate.
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Affiliation(s)
- David P Kateete
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda. .,Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda.
| | - Ritah Nakanjako
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda.,Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Moses Okee
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Moses L Joloba
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda.,Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Christine F Najjuka
- Department of Medical Microbiology, College of Health Sciences, Makerere University, Kampala, Uganda.
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Khosravi AD, Hoveizavi H, Mohammadian A, Farahani A, Jenabi A. Genotyping of multidrug-resistant strains of Pseudomonas aeruginosa isolated from burn and wound infections by ERIC-PCR. Acta Cir Bras 2016; 31:206-11. [PMID: 27050792 DOI: 10.1590/s0102-865020160030000009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Accepted: 02/16/2016] [Indexed: 11/22/2022] Open
Abstract
PURPOSE To determine the genetic diversity of MDR P. aeruginosa strains isolated from burn and wound infections in Ahvaz, Iran, by ERIC-PCR. METHODS From total 99 strains of P. aeruginosa defined as MDR by using drug susceptibility testing, 66 were subjected to ERIC-PCR analysis, comprises 53 strains isolated from burn infection, and 13 randomly selected strains from wound infection with higher resistance to combinations of more numbers of drugs. RESULTS Eight clusters (I to VIII), and 50 single clones were generated for tested MDR isolates analyzed by ERIC-PCR. The high heterogeneity was observed among the isolates from burn infections including 16 isolates which were categorized in eight clusters and 37 single clones. The isolates in clusters II, III, VI, VIII showed 100% similarity. CONCLUSIONS The high level of genotypic heterogeneity in P. aeruginosa strains demonstrated no genetic correlation between them. Extremely high drug resistance in isolates from burn, suggests that efficient control measures and proper antibiotic policy should be observed.
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Affiliation(s)
- Azar Dokht Khosravi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hajar Hoveizavi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ali Mohammadian
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abbas Farahani
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Atefeh Jenabi
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Ribeiro PCS, Monteiro AS, Marques SG, Monteiro SG, Monteiro-Neto V, Coqueiro MMM, Marques ACG, de Jesus Gomes Turri R, Santos SG, Bomfim MRQ. Phenotypic and molecular detection of the bla KPC gene in clinical isolates from inpatients at hospitals in São Luis, MA, Brazil. BMC Infect Dis 2016; 16:737. [PMID: 27927163 PMCID: PMC5142414 DOI: 10.1186/s12879-016-2072-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 11/28/2016] [Indexed: 11/10/2022] Open
Abstract
Background Bacteria that produce Klebsiella pneumoniae carbapenemases (KPCs) are resistant to broad-spectrum β-lactam antibiotics. The objective of this study was to phenotypically and genotypically characterize the antibiotic susceptibility to carbapenems of 297 isolates recovered from clinical samples obtained from inpatients at 16 hospitals in São Luis (Maranhão, Brazil). Methods The study was conducted using phenotypic tests and molecular methods, including polymerase chain reaction (PCR), sequencing and enterobacterial repetitive intergenic consensus (ERIC)-PCR. The nonparametric chi-square test of independence was used to evaluate the associations between the bacterial blaKPC gene and the modified Hodge test, and the chi-square adherence test was used to assess the frequency of carbapenemases and their association with the blaKPC gene. Results The most frequently isolated species were Acinetobacter baumannii (n = 128; 43.0%), K. pneumoniae (n = 75; 25.2%), and Pseudomonas aeruginosa (n = 42; 14.1%). Susceptibility assays showed that polymixin B was active against 89.3% of the bacterial isolates. The Acinetobacter spp. and K. pneumoniae strains were susceptible to amikacin and tigecycline, and Pseudomonas spp. were sensitive to gentamicin and amikacin. Among the 297 isolates, 100 (33.7%) were positive for the blaKPC gene, including non-fermentative bacteria (A. baumannii) and Enterobacteriaceae species. Among the isolates positive for the blaKPC gene, K. pneumoniae isolates had the highest positivity rate of 60.0%. The blaKPC gene variants detected included KPC-2, which was found in all isolates belonging to species of the Enterobacteriaceae family. KPC-2 and KPC-3 were observed in A. baumannii isolates. Importantly, the blaKPC gene was also detected in three Raoultella isolates and one isolate of the Pantoea genus. ERIC-PCR patterns showed a high level of genetic diversity among the bacterial isolates; it was capable of distinguishing 34 clones among 100 strains that were positive for blaKPC and were circulating in 11 of the surveyed hospitals. Conclusions The high frequency of the blaKPC gene and the high degree of clonal diversity among microorganisms isolated from patients from different hospitals in São Luis suggest the need to improve the quality of health care to reduce the incidence of infections and the emergence of carbapenem resistance in these bacteria as well as other Gram-negative pathogens.
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Affiliation(s)
- Patricia Cristina Saldanha Ribeiro
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CEUMA, Rua Josué Montello, No. 1, Renascença II, São Luís, Maranhão, CEP 65075-120, Brazil
| | - Andrea Souza Monteiro
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CEUMA, Rua Josué Montello, No. 1, Renascença II, São Luís, Maranhão, CEP 65075-120, Brazil
| | - Sirlei Garcia Marques
- Hospital Universitário da Universidade Federal do Maranhão, Rua Barão de Itapari, 227, Centro, São Luís, Maranhão, Brazil
| | - Sílvio Gomes Monteiro
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CEUMA, Rua Josué Montello, No. 1, Renascença II, São Luís, Maranhão, CEP 65075-120, Brazil
| | - Valério Monteiro-Neto
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CEUMA, Rua Josué Montello, No. 1, Renascença II, São Luís, Maranhão, CEP 65075-120, Brazil
| | - Martina Márcia Melo Coqueiro
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CEUMA, Rua Josué Montello, No. 1, Renascença II, São Luís, Maranhão, CEP 65075-120, Brazil
| | - Ana Cláudia Garcia Marques
- Programa de Pós-Graduação em Saúde do Adulto e da Criança-UFMA, Universidade Federal do Maranhão, Av. dos Portugueses, 1966 - Bacanga, São Luis, Maranhão, Brazil
| | - Rosimary de Jesus Gomes Turri
- Departamento de Farmácia, Universidade Federal do Maranhão, Av. dos Portugueses, 1966 - Bacanga, São Luis, Maranhão, Brazil
| | - Simone Gonçalves Santos
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antonio Carlos, 6627, Pampulha, Belo Horizonte, MG, Brazil
| | - Maria Rosa Quaresma Bomfim
- Programa de Pós-Graduação em Biologia Parasitária, Universidade CEUMA, Rua Josué Montello, No. 1, Renascença II, São Luís, Maranhão, CEP 65075-120, Brazil.
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Pitondo-Silva A, Devechio BB, Moretto JAS, Stehling EG. High prevalence of bla VIM-1 gene in bacteria from Brazilian soil. Can J Microbiol 2016; 62:820-826. [PMID: 27392282 DOI: 10.1139/cjm-2015-0787] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This study investigated bacteria from soil samples to (i) determine the main bacterial genera and species having resistance to carbapenem and other β-lactams and (ii) establish if the mechanism of resistance was due to the production of metallo-β-lactamases. The isolates were characterized by PCR for metallo-β-lactamases and integrons, by antimicrobial susceptibility testing, and by sequencing. The antimicrobial profile of 40 imipenem-resistant Gram-positive soil isolates from all Brazilian regions demonstrated that 31 (77.5%) of them were multidrug resistant. Among the 40 isolates, 19 presented the blaVIM gene and class 1 integrons by PCR. Six of the 19 isolates were identified as Paenibacillus sp., 12 as Bacillus sp., and just 1 was classified as Staphylococcus sp., by sequencing of the 16S rRNA gene. These results suggest that bacteria from soil can act as a source of blaVIM-1 genes, representing a threat to public health.
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Affiliation(s)
- André Pitondo-Silva
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil.,Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil
| | - Beatriz Baptistella Devechio
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil.,Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil
| | - Jéssica Aparecida Silva Moretto
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil.,Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil
| | - Eliana Guedes Stehling
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil.,Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto - Universidade de São Paulo - Ribeirão Preto, Brazil
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Pobiega M, Wojkowska-Mach J, Maciag J, Chmielarczyk A, Romaniszyn D, Pomorska-Wesolowska M, Ziolkowski G, Heczko PB, Bulanda M. Virulence and Antibiotic Resistance of Pseudomonas aeruginosa Isolated from Patients with Urinary Tract Infections in Southern Poland. Chemotherapy 2015; 60:253-60. [DOI: 10.1159/000376569] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 01/27/2015] [Indexed: 11/19/2022]
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