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Esposito E, Pace A, Affuso A, Oliviero M, Iaccarino D, Paduano G, Maffucci F, Fusco G, De Carlo E, Hochscheid S, Di Nocera F. Antibiotic Resistance of Bacteria Isolated from Clinical Samples and Organs of Rescued Loggerhead Sea Turtles ( Caretta caretta) in Southern Italy. Animals (Basel) 2024; 14:2103. [PMID: 39061565 PMCID: PMC11273476 DOI: 10.3390/ani14142103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/13/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Antimicrobial resistance affects all environments, endangering the health of numerous species, including wildlife. Increasing anthropic pressure promotes the acquisition and dissemination of antibiotic resistance by wild animals. Sea turtles, being particularly exposed, are considered sentinels and carriers of potential zoonotic pathogens and resistant strains. Therefore, this study examined the antibiotic resistance profiles of bacteria isolated from loggerhead sea turtles hospitalised in a rescue centre of Southern Italy over a 9-year period. Resistance to ceftazidime, doxycycline, enrofloxacin, flumequine, gentamicin, oxytetracycline and sulfamethoxazole-trimethoprim was evaluated for 138 strains isolated from the clinical samples or organs of 60 animals. Gram-negative families were the most isolated: Vibrionaceae were predominant, followed by Shewanellaceae, Pseudomonadaceae, Enterobacteriaceae and Morganellaceae. These last three families exhibited the highest proportion of resistance and multidrug-resistant strains. Among the three Gram-positive families isolated, Enterococcaceae were the most represented and resistant. The opportunistic behaviour of all the isolated species is particularly concerning for diseased sea turtles, especially considering their resistance to commonly utilised antibiotics. Actually, the multiple antibiotic resistance was higher when the sea turtles were previously treated. Taken together, these findings highlight the need to improve antimicrobial stewardship and monitor antibiotic resistance in wildlife, to preserve the health of endangered species, along with public and environmental health.
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Affiliation(s)
- Emanuele Esposito
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Antonino Pace
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Andrea Affuso
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Maria Oliviero
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Doriana Iaccarino
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Gianluigi Paduano
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Fulvio Maffucci
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Giovanna Fusco
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Esterina De Carlo
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
| | - Sandra Hochscheid
- Department of Marine Animal Conservation and Public Engagement, Stazione Zoologica Anton Dohrn, Via Nuova Macello 16, 80055 Portici, Italy; (A.A.); (F.M.); (S.H.)
| | - Fabio Di Nocera
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Via Salute 2, 80055 Portici, Italy; (M.O.); (D.I.); (G.P.); (G.F.); (E.D.C.); (F.D.N.)
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Griffin KL, Rodgers B, Rinehardt H, Bozer J, Rodgers KA, Kenney B. The Utility of Prophylactic Antibiotics for Laparoscopic Pyloromyotomy. J Surg Res 2024; 299:298-302. [PMID: 38788466 DOI: 10.1016/j.jss.2024.04.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 05/26/2024]
Abstract
INTRODUCTION Laparoscopic pyloromyotomy (LP) for the treatment of infantile hypertrophic pyloric stenosis (IHPS) is a clean case with low expected rates of postoperative surgical site infection (SSI). Previous studies have shown a low risk of SSI following LP but also large variations in the utilization of prophylactic antibiotics. The goal of this study was to review the use of preoperative antibiotics for LP and to compare this with SSI incidence. METHODS We performed a retrospective single-center analysis of patients undergoing LP for infantile hypertrophic pyloric stenosis at a large quaternary children's hospital from January 2017 to June 2020. Subjects were <4 mo old. Exclusion criteria were those lost to follow-up within 30 d postoperatively and those who required open conversion intraoperatively. Statistical analysis was performed using Fisher's exact test, two-tailed independent t-tests, and descriptive statistics. RESULTS Two-hundred twenty-seven patients were included, mean population age was 5.7 wk, and 81.1% were male. Preoperative antibiotics were administered in 39% of patients. Only 1.3% (n = 3) of all patients developed an SSI within 30 d of their operation. Analysis between patients who received preoperative antibiotics and those who did not revealed no difference in age (5.72 wk versus 5.72 wk, t (225) = 0.38, P = 0.70), sex (41% of males versus 32% of females, P = 0.39), length of stay (t(225) = -0.94, P = 0.35), or postoperative SSI (1.1% versus 1.4%, P > 0.999). Large variability was noted in antibiotic utilization by surgeon. CONCLUSIONS In patients undergoing LP, there was no difference in SSI rates whether or not patients received preoperative antibiotics and, there is large variation in utilization. Measures are needed to decrease usage of prophylactic antibiotics before LP.
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Affiliation(s)
- Kristine L Griffin
- Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, Ohio
| | - Brandon Rodgers
- College of Medicine, The Ohio State University, Columbus, Ohio
| | - Hannah Rinehardt
- Department of General Surgery, University of Pittsburg Medical Center, Pittsburgh, Pennsylvania
| | - Jordan Bozer
- College of Medicine, The Ohio State University, Columbus, Ohio
| | - Kyleigh A Rodgers
- Medical Scientist Training Program, The Ohio State University, Columbus, Ohio
| | - Brian Kenney
- Department of Pediatric Surgery, Nationwide Children's Hospital, Columbus, Ohio.
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Kim KR, Park HJ, Baek SY, Choi SH, Lee BK, Kim S, Kim JM, Kang JM, Kim SJ, Choi SR, Kim D, Choi JS, Yoon Y, Park H, Kim DR, Shin A, Kim S, Kim YJ. The Impact of an Antimicrobial Stewardship Program on Days of Therapy in the Pediatric Center: An Interrupted Time-Series Analysis of a 19-Year Study. J Korean Med Sci 2024; 39:e172. [PMID: 38832477 PMCID: PMC11147790 DOI: 10.3346/jkms.2024.39.e172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/29/2024] [Indexed: 06/05/2024] Open
Abstract
BACKGROUND We aimed to analyze the effects of an antimicrobial stewardship program (ASP) on the proportion of antimicrobial-resistant pathogens in bacteremia, antimicrobial use, and mortality in pediatric patients. METHODS A retrospective single-center study was performed on pediatric inpatients under 19 years old who received systemic antimicrobial treatment from 2001 to 2019. A pediatric infectious disease attending physician started ASP in January 2008. The study period was divided into the pre-intervention (2001-2008) and the post-intervention (2009-2019) periods. The amount of antimicrobial use was defined as days of therapy per 1,000 patient-days, and the differences were compared using delta slope (= changes in slopes) between the two study periods by an interrupted time-series analysis. The proportion of resistant pathogens and the 30-day overall mortality rate were analyzed by the χ². RESULTS The proportion of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae bacteremia increased from 17% (39 of 235) in the pre-intervention period to 35% (189 of 533) in the post-intervention period (P < 0.001). The total amount of antimicrobial use significantly decreased after the introduction of ASP (delta slope value = -16.5; 95% confidence interval [CI], -30.6 to -2.3; P = 0.049). The 30-day overall mortality rate in patients with bacteremia did not increase, being 10% (55 of 564) in the pre-intervention and 10% (94 of 941) in the post-intervention period (P = 0.881). CONCLUSION The introduction of ASP for pediatric patients reduced the delta slope of the total antimicrobial use without increasing the mortality rate despite an increased incidence of ESBL-producing gram-negative bacteremia.
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Affiliation(s)
- Kyung-Ran Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyo Jung Park
- Department of Pharmacy, Samsung Medical Center, Seoul, Korea
- Sungkyunkwan University School of Pharmacy, Suwon, Korea
| | - Sun-Young Baek
- Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Soo-Han Choi
- Department of Pediatrics, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
| | - Byung-Kee Lee
- Department of Pediatrics, Seoulsan Boram Hospital, Ulsan, Korea
| | - SooJin Kim
- Samsung Dream Pediatric Clinic, Suwon, Korea
| | - Jong Min Kim
- Department of Pediatrics, Myongji Hospital, Goyang, Korea
| | - Ji-Man Kang
- Department of Pediatrics, Severance Children's Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sun-Ja Kim
- Samsung Dream Pediatric Clinic, Jeju, Korea
| | | | - Dongsub Kim
- Department of Pediatrics, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Joon-Sik Choi
- Department of Pediatrics, Gangnam Severance Hospital, Seoul, Korea
| | - Yoonsun Yoon
- Department of Pediatrics, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Hwanhee Park
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - Doo Ri Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Areum Shin
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seonwoo Kim
- Academic Research Service Headquarter, LSK Global PS, Seoul, Korea
| | - Yae-Jean Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Seoul, Korea.
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Abdu N, Idrisnur S, Tewelde T, Tesfamariam EH. Antibiotic prescribing practice using WHO Access, Watch and Reserve classification and its determinants among outpatient prescriptions dispensed to elderly population in six community chain pharmacies in Asmara, Eritrea: a cross-sectional study. BMJ Open 2024; 14:e085743. [PMID: 38830743 PMCID: PMC11149134 DOI: 10.1136/bmjopen-2024-085743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
OBJECTIVE To assess antibiotic prescribing practice and its determinants among outpatient prescriptions dispensed to the elderly population. DESIGN A prescription-based, cross-sectional study. SETTING Six community chain pharmacies in Asmara, Eritrea. PARTICIPANTS All outpatient prescriptions dispensed to the elderly population (aged 65 and above) in the six community chain pharmacies in Asmara, Eritrea. DATA COLLECTION AND ANALYSIS Data were collected retrospectively, between 16 June 2023 and 16 July 2023. Antibiotic prescribing practice was assessed using the 2023 World Health Organization (WHO) Access, Watch and Reserve (AWaRe) classification system. Descriptive statistics and logistic regression were performed using IBM SPSS (V.26.0). P values less than 0.05 were considered as significant. RESULTS Of the 2680 outpatient prescriptions dispensed to elderly population, 35.8% (95% CI: 34.0, 37.6) contained at least one antibiotic. Moreover, a total of 1061 antibiotics were prescribed to the elderly population. The most commonly prescribed antibiotics were ciprofloxacin (n=322, 30.3%) and amoxicillin/clavulanic acid (n=145, 13.7%). The Access category accounted for the majority of antibiotics (53.7%) with 32.1% from the Watch category. Prescriber qualification (Adjusted Odds Ratio (AOR)= 0.60, 95% CI: 0.44, 0.81) and polypharmacy (AOR= 2.32, 95% CI: 1.26, 4.27) were significant determinants of antibiotic prescribing in the elderly population. Besides, sex (AOR=0.74, 95% CI: 0.56, 0.98), prescriber qualification (AOR=0.49, 95% CI: 0.30 to0.81) and level of health facility (AOR 0.52, 95% CI 0.34 to 0.81) were significant determinants of a Watch antibiotic prescription. CONCLUSION Antibiotics were prescribed to a considerable number of the elderly population, with more than half of them falling into the Access category. Further efforts by policy-makers are needed to promote the use of Access antibiotics while reducing the use of Watch antibiotics to mitigate risks associated with antimicrobial resistance.
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Affiliation(s)
- Nuru Abdu
- Adi-Tekelezan Community Hospital, Ministry of Health, Adi-Tekelezan, Anseba Region, Eritrea
| | - Saleh Idrisnur
- Product Evaluation and Registration, National Medicine and Food Administration, Asmara, Eritrea
| | - Tomas Tewelde
- Department of Medical Sciences, Pharmacy Unit, Orotta College of Medicine and Health Sciences, Asmara, Eritrea
| | - Eyasu H Tesfamariam
- Biostatistics and Epidemiology, Department of Statistics, College of Sciences, Asmara, Eritrea
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Doua J, Rodríguez-Baño J, Froget R, Puranam P, Go O, Geurtsen J, van Rooij S, Vilken T, Minoru I, Yasumori I, Spiessens B, Tacconelli E, Biehl LM, Thaden JT, Sarnecki M, Goossens H, Poolman J, Bonten M, Ekkelenkamp M. Clinical presentation and antimicrobial resistance of invasive Escherichia coli disease in hospitalized older adults: a prospective multinational observational study. Infection 2024; 52:1073-1085. [PMID: 38267801 PMCID: PMC11142950 DOI: 10.1007/s15010-023-02163-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/18/2023] [Indexed: 01/26/2024]
Abstract
BACKGROUND Clinical data characterizing invasive Escherichia coli disease (IED) are limited. We assessed the clinical presentation of IED and antimicrobial resistance (AMR) patterns of causative E. coli isolates in older adults. METHODS EXPECT-2 (NCT04117113) was a prospective, observational, multinational, hospital-based study conducted in patients with IED aged ≥ 60 years. IED was determined by the microbiological confirmation of E. coli from blood; or by the microbiological confirmation of E. coli from urine or an otherwise sterile body site in the presence of requisite criteria of systemic inflammatory response syndrome (SIRS), Sequential Organ Failure Assessment (SOFA), or quick SOFA (qSOFA). The primary outcomes were the clinical presentation of IED and AMR rates of E. coli isolates to clinically relevant antibiotics. Complications and in-hospital mortality were assessed through 28 days following IED diagnosis. RESULTS Of 240 enrolled patients, 80.4% had bacteremic and 19.6% had non-bacteremic IED. One-half of infections (50.4%) were community-acquired. The most common source of infection was the urinary tract (62.9%). Of 240 patients, 65.8% fulfilled ≥ 2 SIRS criteria, and 60.4% had a total SOFA score of ≥ 2. Investigator-diagnosed sepsis and septic shock were reported in 72.1% and 10.0% of patients, respectively. The most common complication was kidney dysfunction (12.9%). The overall in-hospital mortality was 4.6%. Of 299 E. coli isolates tested, the resistance rates were: 30.4% for trimethoprim-sulfamethoxazole, 24.1% for ciprofloxacin, 22.1% for levofloxacin, 16.4% for ceftriaxone, 5.7% for cefepime, and 4.3% for ceftazidime. CONCLUSIONS The clinical profile of identified IED cases was characterized by high rates of sepsis. IED was associated with high rates of AMR to clinically relevant antibiotics. The identification of IED can be optimized by using a combination of clinical criteria (SIRS, SOFA, or qSOFA) and culture results.
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Affiliation(s)
- Joachim Doua
- Janssen Research and Development, Infectious Diseases and Vaccines, Janssen Pharmaceutica, Beerse, Belgium
- European and Developing Countries Clinical Trials Partnership (EDCTP), Brussels, Belgium
| | - Jesús Rodríguez-Baño
- Unidad Clínica de Enfermedades Infecciosas y Microbiología, Hospital Universitario Virgen Macarena, Seville, Spain
- Department of Medicine, University of Sevilla and Biomedicine Institute of Sevilla/CSIC, Seville, Spain
- CIBERINFEC, Instituto de Salud Carlos III, Madrid, Spain
| | - Rachel Froget
- Inserm Clinical Investigation Center 1435, Dupuytren University Hospital, Limoges, France
| | - Padma Puranam
- Health Sciences North Research Institute, Sudbury, ON, Canada
| | - Oscar Go
- Janssen Research and Development, Raritan, NJ, USA
| | - Jeroen Geurtsen
- Bacterial Vaccines Discovery and Early Development, Janssen Vaccines & Prevention B.V., Leiden, The Netherlands
| | - Sanne van Rooij
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tuba Vilken
- Laboratory of Medical Microbiology, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp, Belgium
| | - Inage Minoru
- Department of Respiratory Medicine, Okitama Public General Hospital, 2000, Nishi-Otsuka, Kawanishi, Yamagata, Japan
| | - Izumi Yasumori
- Department of General Internal Medicine, National Hospital Organization Nagasaki Medical Center, Nagasaki, Japan
| | - Bart Spiessens
- Janssen Research and Development, Infectious Diseases and Vaccines, Janssen Pharmaceutica, Beerse, Belgium
| | - Evelina Tacconelli
- Division of Infectious Diseases, Department of Diagnostic and Public Health, University of Verona, Verona, Italy
| | - Lena M Biehl
- Department I of Internal Medicine, Faculty of Medicine and University Hospital of Cologne, University of Cologne, 50924, Cologne, Germany
- German Centre for Infection Research, Partner Site Bonn-Cologne, Cologne, Germany
| | - Joshua T Thaden
- Department of Medicine, Division of Infectious Diseases, Duke University School of Medicine, Durham, NC, USA
| | - Michal Sarnecki
- Janssen Vaccines, Branch of Cilag GmbH International, Bern, Switzerland.
| | - Herman Goossens
- Laboratory of Medical Microbiology, Vaccine and Infectious Disease Institute, University of Antwerp, Antwerp, Belgium
| | - Jan Poolman
- Bacterial Vaccines Discovery and Early Development, Janssen Vaccines & Prevention B.V., Leiden, The Netherlands
| | - Marc Bonten
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Miquel Ekkelenkamp
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
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Singh G, Rana A, Smriti. Decoding antimicrobial resistance: unraveling molecular mechanisms and targeted strategies. Arch Microbiol 2024; 206:280. [PMID: 38805035 DOI: 10.1007/s00203-024-03998-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/07/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024]
Abstract
Antimicrobial resistance poses a significant global health threat, necessitating innovative approaches for combatting it. This review explores various mechanisms of antimicrobial resistance observed in various strains of bacteria. We examine various strategies, including antimicrobial peptides (AMPs), novel antimicrobial materials, drug delivery systems, vaccines, antibody therapies, and non-traditional antibiotic treatments. Through a comprehensive literature review, the efficacy and challenges of these strategies are evaluated. Findings reveal the potential of AMPs in combating resistance due to their unique mechanisms and lower propensity for resistance development. Additionally, novel drug delivery systems, such as nanoparticles, show promise in enhancing antibiotic efficacy and overcoming resistance mechanisms. Vaccines and antibody therapies offer preventive measures, although challenges exist in their development. Non-traditional antibiotic treatments, including CRISPR-Cas systems, present alternative approaches to combat resistance. Overall, this review underscores the importance of multifaceted strategies and coordinated global efforts to address antimicrobial resistance effectively.
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Affiliation(s)
- Gagandeep Singh
- Department of Biosciences (UIBT), Chandigarh University, Punjab, 140413, India
| | - Anita Rana
- Department of Biosciences (UIBT), Chandigarh University, Punjab, 140413, India.
| | - Smriti
- Department of Biosciences (UIBT), Chandigarh University, Punjab, 140413, India
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Liu J, Liang Z, Zhongla M, Wang H, Sun X, Zheng J, Ding X, Yang F. Prevalence and Molecular Characteristics of Enterococci Isolated from Clinical Bovine Mastitis Cases in Ningxia. Infect Drug Resist 2024; 17:2121-2129. [PMID: 38828370 PMCID: PMC11141574 DOI: 10.2147/idr.s461587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/25/2024] [Indexed: 06/05/2024] Open
Abstract
Purpose This study aimed to investigate the prevalence and genetic characterization of enterococcal isolates (Enterococcus faecalis, Enterococcus faecium and Enterococcus hirae) isolated from clinical bovine mastitis cases in Ningxia, China. Patients and Methods The enterococci were identified by 16S rRNA amplification and sequencing. Antimicrobial resistance was determined by disc diffusion method. Virulence and antimicrobial resistance genes were detected by PCR assays. Results Overall, 198 enterococcal isolates were identified from 2897 mastitis samples, including 137 (4.7%) E. faecalis, 50 (1.7%) E. faecium and 11 (0.4%) E. hirae. E. faecalis, E. faecium and E. hirae isolates showed high resistance to tetracycline (92.7%, 68.0%, 90.9%), followed by erythromycin (86.9%, 76.0%, 72.7%). The multidrug-resistant strains of E. faecalis and E. faecium were 29 (21.2%) and 13 (26.0%), respectively. The resistance of E. faecalis, E. faecium and E. hirae isolates to tetracycline is mainly attributed to the presence of tetL (alone or combined with tetM and/or tetK), the erythromycin resistance to ermB (alone or combined with ermC and/or ermA). Moreover, cpd (94.2%), gelE (77.4%), efaAfs (93.4%), and esp (79.6%) were the most common virulence genes in E. faecalis. In E. faecium, except for the gene efaAfs (82.0%), other virulence genes are rarely found. Only two strains of E. hirae carrying asa1 gene were detected. Conclusion The results of this study can provide a reference for the prevention and treatment of bovine mastitis caused by enterococci.
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Affiliation(s)
- Jing Liu
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Zeyi Liang
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Maocao Zhongla
- Gannan Animal Disease Prevention and Control Center, Hezuo, People’s Republic of China
| | - Hongsheng Wang
- Xiangyang Vocational and Technical College, Xiangyang, People’s Republic of China
| | - Xu Sun
- College of Life Sciences and Engineering, Lanzhou University of Technology, Lanzhou, People’s Republic of China
| | - Juanshan Zheng
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Xuezhi Ding
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Feng Yang
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
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R K, Anil A, Thomas P, Samuel Raju N, Reji SM. Antibiotic Susceptibility Profiling of Gram-Positive and Gram-Negative Bacterial Isolates in a Tertiary Care Hospital: Establishment of an Antibiogram. Cureus 2024; 16:e60542. [PMID: 38887355 PMCID: PMC11181123 DOI: 10.7759/cureus.60542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2024] [Indexed: 06/20/2024] Open
Abstract
Introduction Antimicrobial resistance poses a significant global healthcare challenge in the management of bacterial infections, which is frequently attributed to rapid bacterial adaptations. This study aims to develop an antibiogram for a tertiary care hospital, providing comprehensive antibiotic sensitivity profiles for Gram-positive and Gram-negative bacteria. It informs healthcare providers of antibiotic resistance trends, enabling informed treatment decisions and enhanced infection control measures. Methods We conducted a six-month prospective observational study, during which we gathered and analyzed data from the microbiology laboratory to identify patterns of antimicrobial sensitivity. Subsequently, the data underwent analysis and interpretation using the respected WHONET software, a readily available tool designed for this specific task. Our methodology adhered to the guidelines established by the Clinical & Laboratory Standards Institute for the standardization of antibiogram generation procedures, and these guidelines are easily integrated into the WHONET software for analytical purposes. Results There were a total of 357 isolates across various hospital departments, comprising 13 distinct bacterial species. Among them, nine were identified as Gram-negative bacteria, accounting for 262 (73.3%) isolates. Escherichia coli accounted for 131 (36.6%) isolates, while Klebsiella accounted for 62 (17.3%), emerging as the predominant species among them. The remaining four bacterial species were identified as Gram-positive bacteria, totaling 95 (26.6%) isolates, with Staphylococcus aureus being the most frequently isolated species at 51 (14.2%), followed by Enterococcus at 26 (7.2%). Subsequent analysis using the WHONET software facilitated the creation of an antibiogram. Among the Gram-negative bacteria, E. coli displayed high sensitivity (100%) to aztreonam and clindamycin, followed by nitrofurantoin (98%), imipenem (94%), and meropenem (95%). However, it exhibited decreased sensitivity to ampicillin (25%), cefuroxime (34%), and ceftriaxone (39%). Conversely, among the Gram-positive bacteria, S. aureus demonstrated 100% sensitivity to ampicillin, amoxiclav, cefazolin, teicoplanin, linezolid, rifampicin, nitrofurantoin, and cefotaxime. However, it exhibited zero sensitivity to vancomycin and only 6% sensitivity to cotrimoxazole. Conclusion This study advances the understanding of antibiotic susceptibility in a tertiary care setting and provides an invaluable tool for optimizing treatment strategies, enhancing infection control measures, and combating antibiotic resistance.
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Affiliation(s)
- Kannan R
- Pharmacology and Therapeutics, East Point College of Pharmacy, Bangalore, IND
| | - Ashik Anil
- Pharmacology and Therapeutics, East Point Hospital and Research Center, Bangalore, IND
| | - Pritty Thomas
- Clinical Pharmacy, St John's Medical College Hospital, Bangalore, IND
| | - Nijin Samuel Raju
- Pharmacology and Therapeutics, Believers Church Medical College Hospital, Bangalore, IND
| | - Sherin M Reji
- Pharmacy, Hillside College of Pharmacy and Research Centre, Bangalore, IND
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Alizadeh M, Dorranian D, Sari AH. Comparison of the antimicrobial photocatalytic activities of SiO 2 and Au@SiO 2 nanostructures in water decontamination. Microsc Res Tech 2024; 87:896-907. [PMID: 38149754 DOI: 10.1002/jemt.24486] [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: 07/05/2023] [Revised: 11/04/2023] [Accepted: 12/18/2023] [Indexed: 12/28/2023]
Abstract
Photocatalytic disinfection of Escherichia coli suspension by silicon dioxide nanoparticles and silicon dioxide/gold nanocomposite in a batch reactor is investigated experimentally and results are compared. Silica nanoparticles were synthesized by Stöber method and pulsed laser ablation method was employed to prepare gold nanoparticles in distilled water. Composition of two nanoparticles species was carried out, using the second harmonic pulse of Nd:YAG laser, whose wavelength is in the absorption spectra of gold nanoparticles. Results confirm a decrease in the bandgap energy of silica nanoparticles after composition. Escherichia coli were selected as an indicator of the microbial water contamination. Disk diffusion method was used to evaluate the antimicrobial potential of SiO2 and Au@SiO2 nanostructures. Photocatalytic activities of both nanostructures were examined in dark, and under the irradiation of UV and visible light. In all conditions, the performance of Au@SiO2 nanocomposites was higher than SiO2 nanoparticles. In dark condition the higher biocidal nature and activity of Au nanoparticles and for the case of UV radiation, decreasing the bandgap energy and recombination rate of SiO2 nanoparticles after composition with Au increased the efficiency. For the case of visible light radiation, surface plasmon resonances effects, and local heat of Au nanoparticles were responsible for increasing the efficiency. RESEARCH HIGHLIGHTS: Doping large bandgap semiconductors nanostructures, such as silica with metal nanoparticles, such as gold will improve their photocatalytic activity to work in visible light. In this mechanism, gold nanoparticles act as effective traps to prevent the recombination of photogenerated electron-hole pairs. Other mechanisms, such as Schottky barrier formation, surface plasmon resonance absorption of gold nanoparticles, and biocidal nature of the gold nanoparticles are effective in increasing the efficiency of Au doped silica nanostructures.
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Affiliation(s)
- Mahsa Alizadeh
- Laser Laboratory, Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Davoud Dorranian
- Laser Laboratory, Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amir Hossein Sari
- Laser Laboratory, Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Shepherd MJ, Fu T, Harrington NE, Kottara A, Cagney K, Chalmers JD, Paterson S, Fothergill JL, Brockhurst MA. Ecological and evolutionary mechanisms driving within-patient emergence of antimicrobial resistance. Nat Rev Microbiol 2024:10.1038/s41579-024-01041-1. [PMID: 38689039 DOI: 10.1038/s41579-024-01041-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2024] [Indexed: 05/02/2024]
Abstract
The ecological and evolutionary mechanisms of antimicrobial resistance (AMR) emergence within patients and how these vary across bacterial infections are poorly understood. Increasingly widespread use of pathogen genome sequencing in the clinic enables a deeper understanding of these processes. In this Review, we explore the clinical evidence to support four major mechanisms of within-patient AMR emergence in bacteria: spontaneous resistance mutations; in situ horizontal gene transfer of resistance genes; selection of pre-existing resistance; and immigration of resistant lineages. Within-patient AMR emergence occurs across a wide range of host niches and bacterial species, but the importance of each mechanism varies between bacterial species and infection sites within the body. We identify potential drivers of such differences and discuss how ecological and evolutionary analysis could be embedded within clinical trials of antimicrobials, which are powerful but underused tools for understanding why these mechanisms vary between pathogens, infections and individuals. Ultimately, improving understanding of how host niche, bacterial species and antibiotic mode of action combine to govern the ecological and evolutionary mechanism of AMR emergence in patients will enable more predictive and personalized diagnosis and antimicrobial therapies.
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Affiliation(s)
- Matthew J Shepherd
- Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK.
| | - Taoran Fu
- Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK
| | - Niamh E Harrington
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Anastasia Kottara
- Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK
| | - Kendall Cagney
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - James D Chalmers
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
| | - Steve Paterson
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Joanne L Fothergill
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Michael A Brockhurst
- Division of Evolution and Genomic Sciences, School of Biological Sciences, University of Manchester, Manchester, UK.
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11
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Mithi B, Luhanga M, Kaminyoghe F, Chiumia F, Banda DL, Nyama L. Antibiotic use and resistance patterns at Rumphi District Hospital in Malawi: a cross-sectional study. BMC Infect Dis 2024; 24:445. [PMID: 38671359 PMCID: PMC11046875 DOI: 10.1186/s12879-024-09333-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Overuse of antibiotics is a key driver of antimicrobial resistance (AMR) world-wide. Malawi continues to report rising cases of AMR among both in-patients and out-patients. We investigated antibiotic use and resistance patterns among patients with suspected first line antibiotic treatment failure at Rumphi District Hospital, Malawi. METHODS We used a cross-sectional study design in which records of patients data on culture and antimicrobial sensitivity tests were extracted, alongside treatment history from 2019 to March, 2023, retrospectively. We also included findings for point prevalence survey (PPS) conducted within four hospital wards in June, 2022 by a well-trained multi-disciplinary team from within the hospital. The data was analyzed for antibiotic use, characterization of pathogens and their susceptibility patterns using Microsoft excel and STATA-14 software. RESULTS A total of 85 patients' data records were reviewed on antibiotics resistance pattern in which 54 (63.5%) were females. Patient antibiotic history captured indicated Metronidazole (23%), Gentamycin (20%) and Doxycycline (23%) as the most frequently used antibiotics among clients referred for microbiological investigations. Among locally available antibiotics with over 50% sensitivity were Chloramphenicol (61%), ciprofloxacin (55%), and ceftriaxone (54%). Penicillins were among antibiotics with highest resistance: ampicillin (100%), amoxyclav (90%), Piperacilin-tazobactam (63%). The majority of patients came from STI clinic and presented with genital discharges 44% (n = 39). Over 80% of the isolated N. gonorrhoeae exhibited a reduced susceptibility to gentamycin. Prevalence of Methicillin resistant staphylococcus Aureus (MRSA) was 46% and were mostly isolated from wound pus. Among 80 data records of the patients reviewed during PPS, Ceftriaxone (54.3%) and Metronidazole (23.3%) emerged as the most frequently used antibiotics in the wards which were prescribed empirically without a microbiological indication. CONCLUSION In this study setting, we observed high use of watch antibiotics along with problem of multi-drug resistant infections in patients experiencing clinical failure in a variety of clinical syndromes. The findings underline the need to revamp diagnostic microbiology to increase the uptake of antimicrobial susceptibility testing to guide specific prescriptions of broad-spectrum antibiotics in the watch list.
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Affiliation(s)
- Brany Mithi
- School of Global and Public Health, Kamuzu University of Health Sciences (KUHeS), Blantyre, Malawi.
- Ministry of Health, Rumphi District Hospital, Rumphi, Malawi.
| | - Mosen Luhanga
- Ministry of Health, Rumphi District Hospital, Rumphi, Malawi
| | | | - Francis Chiumia
- Department of Pharmacy, Kamuzu University of Health Sciences (KUHeS), Blantyre, Malawi
| | - Daniel L Banda
- Department of Medical Laboratory Sciences, Kamuzu University of Health Sciences (KUHeS), Blantyre, Malawi
| | - Lottie Nyama
- Ministry of Health, Rumphi District Hospital, Rumphi, Malawi
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12
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Mardikasari SA, Katona G, Sipos B, Csóka I. Essential considerations towards development of effective nasal antibiotic formulation: features, strategies, and future directions. Expert Opin Drug Deliv 2024; 21:611-625. [PMID: 38588551 DOI: 10.1080/17425247.2024.2341184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 04/05/2024] [Indexed: 04/10/2024]
Abstract
INTRODUCTION Intranasal antibiotic products are gaining popularity as a promising method of administering antibiotics, which provide numerous benefits, e.g. enhancing drug bioavailability, reducing adverse effects, and potentially minimizing resistance threats. However, some issues related to the antibiotic substances and nasal route challenges must be addressed to prepare effective formulations. AREAS COVERED This review focuses on the valuable points of nasal delivery as an alternative route for administering antibiotics, coupled with the challenges in the nasal cavity that might affect the formulations. Moreover, this review also highlights the application of nasal delivery to introduce antibiotics for local therapy, brain targeting, and systemic effects that have been conducted. In addition, this viewpoint provides strategies to maintain antibiotic stability and several crucial aspects to be considered for enabling effective nasal formulation. EXPERT OPINION In-depth knowledge and understanding regarding various key considerations with respect to the antibiotic substances and nasal route delivery requirement in preparing effective nasal antibiotic formulation would greatly improve the development of nasally administered antibiotic products, enabling better therapeutic outcomes of antibiotic treatment and establishing appropriate use of antibiotics, which in turn might reduce the chance of antibiotic resistance and enhance patient comfort.
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Affiliation(s)
- Sandra Aulia Mardikasari
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
- Faculty of Pharmacy, Hasanuddin University, Makassar, Indonesia
| | - Gábor Katona
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Bence Sipos
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
| | - Ildikó Csóka
- Institute of Pharmaceutical Technology and Regulatory Affairs, Faculty of Pharmacy, University of Szeged, Szeged, Hungary
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Sharma RK, Jalalpure SS, Pathak S, Ganapathy S, Desvaux M, Roy S, Hegde S. Molecular detection of Listeria monocytogenes from different dairy and street food sources in North Karnataka, India. J Infect Public Health 2024; 17:696-703. [PMID: 38479066 DOI: 10.1016/j.jiph.2024.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 02/07/2024] [Accepted: 02/25/2024] [Indexed: 03/24/2024] Open
Abstract
BACKGROUND Food-borne pathogen Listeria monocytogenes is abundantly present in nature and accountable for sporadic and epidemic cases of listeriosis in humans. The objective of this study was to screen common food sources for L. monocytogenes using biochemical and molecular methods to detect and characterise its toxin genes as well as for biofilm formation. METHODS A total of 92 samples, comprising dairy and street food products, were randomly collected from various sources for this investigation. The collected samples were processed for biochemical and molecular methods to detect L. monocytogenes. Additionally, virulence factors associated genes, antibiogram profiles and biofilm formation related assays were determined. RESULTS L. monocytogenes presence was confirmed using molecular detection methods targeting prs and lmo1030 genes, along with MALDI-TOF MS. Following 16 S rRNA sequencing, the identified Listeria species were further categorised into two groups. L. monocytogenes was detected in two (2.17%) food samples tested (L-23 and L-74). Multiplex PCR indicated the presence of seven virulence-related genes in L. monocytogenes isolates, i.e., inlA, inlB, prfA, iap, actA, plcB, and hlyA. In addition, 17 antibiotics were tested, whereby two isolates showed resistance to clindamycin and azithromycin, while one isolate (L-74) was also resistant to nalidixic acid, co-trimoxazole, ampicillin, norfloxacin, and cefotaxime. L-23 and L-74 isolates showed biofilm formation, especially at pH 8.6 and 37°C. CONCLUSIONS Besides the demonstration of the presence of L. monocytogenes in some dairy and street food products, this study underscores the need to increase the standards of hygiene on the one hand and the importance of the surveillance of food-borne pathogens on the other.
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Affiliation(s)
- Roshan Kumar Sharma
- KLE Academy of Higher Education and Research, Dr. Prabhakar Kore Basic Science Research Centre, Belagavi 590010, India
| | - Sunil S Jalalpure
- KLE College of Pharmacy, Belagavi, KLE Academy of Higher Education and Research, Belagavi 590010, India
| | - Swati Pathak
- Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Sachit Ganapathy
- Department of Biostatistics, Jawaharlal Institute of Post Graduate Medical Education and Research (JIPMER), Puducherry 605006, India
| | | | - Subarna Roy
- ICMR - National Institute of Traditional Medicine (ICMR-NITM), Department of Health Research, Govt. of India, Belagavi 590010, India
| | - Satisha Hegde
- KLE Academy of Higher Education and Research, Dr. Prabhakar Kore Basic Science Research Centre, Belagavi 590010, India.
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Yang H, Xu N, Yan M, Yang L, Wen S, Wang S, Qu C, Xu K, Yang X, Wang G. Comparison of metagenomic next-generation sequencing and conventional culture for the diagnostic performance in febrile patients with suspected infections. BMC Infect Dis 2024; 24:350. [PMID: 38532348 DOI: 10.1186/s12879-024-09236-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 03/19/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Timely and accurate identification of pathogens is crucial for appropriate treatment and prognosis of infectious diseases. As an increasingly popular pathogen detection method, the performance of metagenomic next-generation sequencing (mNGS) in detecting pathogens in febrile patients with suspected infection requires further exploration. METHODS This study included 368 febrile patients with suspected infections who were admitted to the Infectious Disease Department of Qilu Hospital, Shandong University between January 5, 2021 and April 14, 2023. Both mNGS testing and conventional culture were performed in all patients. Clinical data of enrolled patients were collected, and the diagnostic performances of mNGS and culture were compared. RESULTS Of the 368 enrolled patients, 231 were finally diagnosed with infection and 137 were with diseases other than infection. The sensitivity (58.01% vs. 21.65%, p < 0.001) and negative predictive value (54.67% vs. 42.9%) of mNGS were superior to those of culture. In contrast, the culture exhibited higher specificity (99.27% vs. 85.40%, p < 0.001) and positive predictive value (98.84% vs. 87.01%) than mNGS. Among infected patients with positive mNGS results, 64 received adjusted antibiotic therapy including treatment transitions, antibiotic downgrading, and combination therapy. Among them, 9 had additional antifungal drugs and 21 patients had a treatment turning point based on the mNGS results and these patients recovered and discharged due to timely antibiotic adjustment. Both positive rates of puncture fluid mNGS and tissue mNGS were higher than those of culture in the patients who had prior antibiotic use, and this difference was statistically significant (p = 0.000). CONCLUSION mNGS is more sensitive and accurate than traditional culture, making it ideal for identifying pathogens and screening infectious diseases, especially for those with uncultivated or difficult-to-cultivate species. Early diagnosis allows for prompt treatment with targeted antibiotics, and mNGS is recommended when samples are limited.
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Affiliation(s)
- Hui Yang
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Nannan Xu
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Meichen Yan
- Department of Intensive Care Unit, Qilu Hospital, Cheeloo College of Medicine, ShandongUniversity, Jinan, Shandong, 250012, China
| | - Lulu Yang
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Sai Wen
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Shanshan Wang
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Chunmei Qu
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Ke Xu
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China
| | - Xuying Yang
- Department of Scientific Affaires, Hugobiotech Co., Ltd., No.1, East Disheng Road, Beijing, 100176, China
| | - Gang Wang
- Department of Infectious Disease, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, China.
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Rasheed R, Uzair B, Raza A, Binsuwaidan R, Alshammari N. Fungus-mediated synthesis of Se-BiO-CuO multimetallic nanoparticles as a potential alternative antimicrobial against ESBL-producing Escherichia coli of veterinary origin. Front Cell Infect Microbiol 2024; 14:1301351. [PMID: 38655284 PMCID: PMC11037251 DOI: 10.3389/fcimb.2024.1301351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 02/23/2024] [Indexed: 04/26/2024] Open
Abstract
Bacterial infections emerge as a significant contributor to mortality and morbidity worldwide. Emerging extended-spectrum β-lactamase (ESBL) Escherichia coli strains provide a greater risk of bacteremia and mortality, are increasingly resistant to antibiotics, and are a major producer of ESBLs. E. coli bacteremia-linked mastitis is one of the most common bacterial diseases in animals, which can affect the quality of the milk and damage organ functions. There is an elevated menace of treatment failure and recurrence of E. coli bacteremia necessitating the adoption of rigorous alternative treatment approaches. In this study, Se-Boil-CuO multimetallic nanoparticles (MMNPs) were synthesized as an alternate treatment from Talaromyces haitouensis extract, and their efficiency in treating ESBL E. coli was confirmed using standard antimicrobial assays. Scanning electron microscopy, UV-visible spectroscopy, and dynamic light scattering were used to validate and characterize the mycosynthesized Se-BiO-CuO MMNPs. UV-visible spectra of Se-BiO-CuO MMNPs showed absorption peak bands at 570, 376, and 290 nm, respectively. The average diameters of the amorphous-shaped Se-BiO-CuO MMNPs synthesized by T. haitouensis extract were approximately 66-80 nm, respectively. Se-BiO-CuO MMNPs (100 μg/mL) showed a maximal inhibition zone of 18.33 ± 0.57 mm against E. coli. Se-BiO-CuO MMNPs also exhibited a deleterious impact on E. coli killing kinetics, biofilm formation, swimming motility, efflux of cellular components, and membrane integrity. The hemolysis assay also confirms the biocompatibility of Se-BiO-CuO MMNPs at the minimum inhibitory concentration (MIC) range. Our findings suggest that Se-BiO-CuO MMNPs may serve as a potential substitute for ESBL E. coli bacteremia.
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Affiliation(s)
- Rida Rasheed
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Bushra Uzair
- Department of Biological Sciences, International Islamic University, Islamabad, Pakistan
| | - Abida Raza
- National Center of Industrial Biotechnology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan
| | - Reem Binsuwaidan
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Nawaf Alshammari
- Department of Biology, College of Science, University of Hail, Hail, Saudi Arabia
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16
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Watanabe A, Harimoto N, Araki K, Igarashi T, Tsukagoshi M, Ishii N, Hagiwara K, Tsunekawa K, Murakami M, Shirabe K. Perioperative pancreaticoduodenectomy management strategy focusing on postoperative early drain colonization. Surg Today 2024:10.1007/s00595-024-02810-4. [PMID: 38502211 DOI: 10.1007/s00595-024-02810-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 01/21/2024] [Indexed: 03/21/2024]
Abstract
PURPOSE Pancreatoduodenectomy (PD) is a highly invasive procedure. Intra-abdominal infections and pancreatic fistulas are strongly correlated complications. In the present study, we identified the risk factors for postoperative early drain colonization (POEDC) and established a perioperative management strategy. METHODS A total of 205 patients who underwent pancreatoduodenectomy were included in the study. POEDC was defined as a positive drain fluid culture before postoperative day (POD) 4. We retrospectively investigated the correlation between POEDC, postoperative outcomes, and clinical factors. RESULTS POEDC was observed in 26 patients (12.6%) with poor postoperative outcomes, including pancreatic fistulas (P < 0.001). A multivariate analysis demonstrated a correlation between these postoperative outcomes and the age (P = 0.002), body mass index (BMI) (P = 0.002), procalcitonin (PCT) level (P < 0.001), and drain amylase level on POD 1 (P = 0.032). Enterococcus was detected most frequently, being found in 15 patients. CONCLUSION We observed a strong correlation between POEDC and poor postoperative outcomes. The BMI, age, and PCT and drain amylase level on POD 1 should be considered POEDC risk factors, with the need to propose an antibiotic perioperative strategy. POEDC control may represent the key to improving postoperative outcomes after PD.
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Affiliation(s)
- Akira Watanabe
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Norifumi Harimoto
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan.
| | - Kenichiro Araki
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Takamichi Igarashi
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Mariko Tsukagoshi
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Norihiro Ishii
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Kei Hagiwara
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Katsuhiko Tsunekawa
- Department of Clinical Laboratory Medicine, Gunma University, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Masami Murakami
- Department of Clinical Laboratory Medicine, Gunma University, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
| | - Ken Shirabe
- Department of Hepatobiliary and Pancreatic Surgery, Gunma University Graduate School of Medicine, 3-39-22 Showa-Machi, Maebashi, Gunma, 371-8511, Japan
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17
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Kandi V, Shahapur PR, Suvvari TK, Bharadwaj VG, P CR, Shahapur R, Podaralla E, Godishala V. Molecular Characterization of Escherichia coli Causing Urinary Tract Infections Through Next-Generation Sequencing: A Comprehensive Analysis of Serotypes, Sequence Types, and Antimicrobial and Virulence Genes. Cureus 2024; 16:e55556. [PMID: 38576671 PMCID: PMC10993757 DOI: 10.7759/cureus.55556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2024] [Indexed: 04/06/2024] Open
Abstract
Introduction An enormous increase in antimicrobial resistance (AMR) among bacteria isolated from human clinical specimens contributed to treatment failures. Increased surveillance through next-generation sequencing (NGS) or whole genome sequencing (WGS) could facilitate the study of the epidemiology of drug-resistant bacterial strains, resistance genes, and other virulence determinants they are potentially carrying. Methods This study included 30 Escherichia coli (E. coli) isolates obtained from patients suffering from urinary tract infections (UTIs) attending Prathima Institute of Medical Sciences, Karimnagar, India. All bacterial isolates were identified, and antimicrobial susceptibility patterns were determined through conventional microbiological techniques and confirmed by automated systems. All the isolates were investigated using NGS to identify genes coding for resistance, such as extended-spectrum beta-lactamases (ESBLs), metallo-beta-lactamases, and virulence genes. Multilocus sequence typing (MLST) was used to understand the prevalent strain types, and serotyping was carried out to evaluate the type of O (cell wall antigen) and H (flagellar antigen) serotypes carried by the isolates. Results The conventional antimicrobial susceptibility testing revealed that 15 (50%) isolates were resistant to imipenem (IPM), 10 (33.33%) were resistant to amikacin (AK), 13 (43.33%) were resistant to piperacillin-tazobactam (PTZ), 17 (56.66%) were resistant to cephalosporins, and 14 (46.66%) were resistant to nitrofurantoin (NIT). Among the isolates, 26 (86.66%) had revealed the presence of multiple antibiotic-resistant genes with evidence of at least one gene coding for beta-lactamase resistance. There was a high prevalence of blaCTX-M (19/30, 63.33%) genes, followed by blaTEM and blaOXA-1. The blaNDM-5 gene was found in three isolates (3/30, 10%). The virulence genes identified in the present study were iutA, sat, iss, and papC, among others. The E. coli serotype found predominantly belonged to O25:H4 (5, 16.66%), followed by O102:H6 (4, 13.33%). A total of 16 MLST variants were identified among the examined samples. Of the MLST-based sequence types (STs) identified, ST-131 (7, 23.33%) was the predominant one, followed by ST-167 (3, 10%) and ST-12 (3, 10%). Conclusions The study results demonstrated that the E. coli strains isolated from patients suffering from UTIs potentially carried antimicrobial resistance and virulence genes and belonged to different strain types based on MLST. Careful evaluation of bacterial strains using molecular analyses such as NGS could facilitate an improved understanding of bacterial antibiotic resistance and its virulence potential. This could enable physicians to choose appropriate antimicrobial agents and contribute to better patient management, thereby preventing the emergence and spread of drug-resistant bacteria.
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Affiliation(s)
- Venkataramana Kandi
- Clinical Microbiology, Prathima Institute of Medical Sciences, Karimnagar, IND
| | - Praveen R Shahapur
- Microbiology, Bijapur Lingayat District Educational (BLDE) (Deemed to be) University, Shri B. M. Patil Medical College, Vijayapura, IND
| | - Tarun Kumar Suvvari
- General Medicine, Rangaraya Medical College, Kakinada, IND
- Research, Squad Medicine and Research (SMR), Visakhapatnam, IND
| | - Vallab Ganesh Bharadwaj
- Microbiology, Trichy Sri Ramaswamy Memorial (SRM) Medical College Hospital and Research Centre, Tiruchirappalli, IND
| | - Chitra Rajalakshmi P
- Microbiology, Trichy Sri Ramaswamy Memorial (SRM) Medical College Hospital and Research Centre, Tiruchirappalli, IND
| | - Roopa Shahapur
- Dentistry, Bijapur Lingayat District Educational (BLDE) (Deemed to be) University, Shri B. M. Patil Medical College, Vijayapura, IND
| | | | - Vikram Godishala
- Biotechnology/Food and Nutrition, Vaagdevi Degree and PG College, Hanamkonda, IND
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Dewi RR, Nuryawan A, Jajere SM, Sihombing JM, Tambunan IJ. Antimicrobial resistance profiles of Escherichia coli derived from an integrated agroforestry-livestock system in Deli Serdang Regency, Indonesia. Vet World 2024; 17:690-699. [PMID: 38680150 PMCID: PMC11045535 DOI: 10.14202/vetworld.2024.690-699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 03/05/2024] [Indexed: 05/01/2024] Open
Abstract
Background and Aim Antimicrobial resistance (AMR) has become a significant global concern. Epidemiological data do not provide a robust description of the potential risks associated with AMR in the integrated agroforestry-livestock systems in Indonesia. Thus, the present study investigated the phenotypic and multidrug resistance (MDR) profiles of Escherichia coli strains isolated from the feces of livestock raised in the agro-silvopastoral system in Deli Serdang Regency, North Sumatra Province. Materials and Methods A standard microbiological culture procedure was followed to isolate the organism and test antibiotic susceptibility using the Kirby-Bauer disk diffusion protocol. Furthermore, the multiple antibiotic resistance index was determined. Univariate analysis was conducted to identify the risk factors associated with AMR. Results The vast majority (77.5%) of livestock farmers were aged >30 years. All farmers were men and had no higher education (100% of them). The majority of the animal species managed were cattle and goats (37.5% each) and the livestock grazing pasture system (67.5%). In addition, the majority of farmers reported high antimicrobial use on their farms (87.5%). Of the samples (n = 142) analyzed, n = 70 were positive, with an overall prevalence of 44.4%. The species-specific prevalences of E. coli were 32.5%, 47.8%, and 50% in buffalo, goat, and cattle, respectively. Ampicillin and tetracyclines exhibited high resistance levels among the studied animal species. A relatively lower MDR for E. coli was associated with grazing on the pasture. Conclusion The findings from the current study provide baseline epidemiological information for future robust studies aimed at elucidating the drivers and patterns of AMR in agro-silvopastoral systems in the study area or elsewhere.
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Affiliation(s)
- Rita Rosmala Dewi
- Department of Animal Husbandry, Faculty of Science and Technology, Universitas Tjut Nyak Dhien, Medan, Indonesia
| | - Arif Nuryawan
- Department of Forestry, Faculty of Forestry, Universitas Sumatera Utara, Medan, Indonesia
| | - Saleh Mohammed Jajere
- Department of Veterinary Public Health and Preventive Medicine, Faculty of Veterinary Medicine, University of Maiduguri, Maiduguri, Borno State, Nigeria
| | - Juli Mutiara Sihombing
- Department of Animal Husbandry, Faculty of Science and Technology, Universitas Tjut Nyak Dhien, Medan, Indonesia
| | - Ika Julianti Tambunan
- Department of Pharmacy, Faculty of Pharmacy, Universitas Tjut Nyak Dhien, Medan, Indonesia
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Ruiz Ramos J, Santolaya Perrín MR, González Del Castillo J, Candel FJ, Quirós AM, López-Contreras González J, Jiménez AJ, Suárez-Lledó Grande A. Design of a panel of indicators for antibiotic stewardship programs in the Emergency Department. FARMACIA HOSPITALARIA 2024; 48:57-63. [PMID: 37481455 DOI: 10.1016/j.farma.2023.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/24/2023] Open
Abstract
OBJECTIVE To develop a panel of indicators to monitor antimicrobial stewardship programs activity in the emergency department. METHODS A multidisciplinary group consisting of experts in the management of infection in emergency departments and the implementation of antimicrobial stewardship programs (ASP) evaluated a proposal of indicators using a modified Delphi methodology. In the first round, each expert classified the relevance of each proposed indicators in two dimensions (healthcare impact and ease of implementation) and two attributes (prioritization level and frequency). The second round was conducted based on the modified questionnaire according to the suggestions raised and new indicators suggested. Experts modified the prioritization order and rated the new indicators in the same manner as in the first round. RESULTS 61 potential indicators divided into four groups were proposed: consumption indicators, microbiological indicators, process indicators, and outcome indicators. After analyzing the scores and comments from the first round, 31 indicators were classified as high priority, 25 as intermediate priority, and 5 as low priority. Moreover, 18 new indicators were generated. Following the second round, all 61 initially proposed indicators were retained, and 18 new indicators were incorporated: 11 classified as high priority, 3 as intermediate priority, and 4 as low priority. CONCLUSIONS The experts agreed on a panel of ASP indicators adapted to the emergency services prioritized by level of relevance. This is as a helpful tool for the development of these programs and will contribute to monitoring the appropriateness of the use of antimicrobials in these units.
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Affiliation(s)
- Jesús Ruiz Ramos
- Servicio de Farmacia, Hospital Santa Creu y San Pau, Barcelona, España.
| | | | | | - Francisco Javier Candel
- Unidad de Enfermedades Infecciosas, Hospital Clínico Universitario San Carlos, Madrid, España
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20
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Ruiz-Ramos J, Santolaya-Perrín MR, González-Del-Castillo J, Candel FJ, Martín-Quirós A, López-Contreras-González J, Julián-Jiménez A, Suárez-Lledó-Grande A. [Translated article] Design of a panel of indicators for antibiotic stewardship programs in the Emergency Department. FARMACIA HOSPITALARIA 2024; 48:T57-T63. [PMID: 38148256 DOI: 10.1016/j.farma.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 12/28/2023] Open
Abstract
OBJECTIVE To develop a panel of indicators to monitor antimicrobial stewardship programs activity in the emergency department. METHODS A multidisciplinary group consisting of experts in the management of infection in emergency departments and the implementation of antimicrobial stewardship programs (ASP) evaluated a proposal of indicators using a modified Delphi methodology. In the first round, each expert classified the relevance of each proposed indicators in two dimensions (healthcare impact and ease of implementation) and two attributes (prioritisation level and frequency). The second round was conducted based on the modified questionnaire according to the suggestions raised and new indicators suggested. Experts modified the prioritisation order and rated the new indicators in the same manner as in the first round. RESULTS 61 potential indicators divided into four groups were proposed: consumption indicators, microbiological indicators, process indicators, and outcome indicators. After analysing the scores and comments from the first round, 31 indicators were classified as high priority, 25 as intermediate priority, and 5 as low priority. Moreover, 18 new indicators were generated. Following the second round, all 61 initially proposed indicators were retained, and 18 new indicators were incorporated: 11 classified as high priority, 3 as intermediate priority, and 4 as low priority. CONCLUSIONS The experts agreed on a panel of ASP Indicators adapted to the emergency services prioritised by level of relevance. This is as a helpful tool for the development of these programs and will contribute to monitoring the appropriateness of the use of antimicrobials in these units.
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Affiliation(s)
- Jesús Ruiz-Ramos
- Servicio de Farmacia, Hospital Santa Creu y San Pau, Catalonia, Spain.
| | | | | | - Francisco Javier Candel
- Infectious diseases-Clinical Microbiology, Hospital Clínico Universitario San Carlos, Madrid, Spain
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21
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Ajayi AO, Odeyemi AT, Akinjogunla OJ, Adeyeye AB, Ayo-ajayi I. Review of antibiotic-resistant bacteria and antibiotic resistance genes within the one health framework. Infect Ecol Epidemiol 2024; 14:2312953. [PMID: 38371518 PMCID: PMC10868463 DOI: 10.1080/20008686.2024.2312953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 01/29/2024] [Indexed: 02/20/2024] Open
Abstract
Background: The interdisciplinary One Health (OH) approach recognizes that human, animal, and environmental health are all interconnected. Its ultimate goal is to promote optimal health for all through the exploration of these relationships. Antibiotic resistance (AR) is a public health challenge that has been primarily addressed within the context of human health and clinical settings. However, it has become increasingly evident that antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) that confer resistance are transmitted and circulated within humans, animals, and the environment. Therefore, to effectively address this issue, antibiotic resistance must also be considered an environmental and livestock/wildlife problem. Objective: This review was carried out to provide a broad overview of the existence of ARB and ARGs in One Health settings. Methods: Relevant studies that placed emphasis on ARB and ARGs were reviewed and key findings were accessed that illustrate the importance of One Health as a measure to tackle growing public and environmental threats. Results: In this review, we delve into the complex interplay of the three components of OH in relation to ARB and ARGs. Antibiotics used in animal husbandry and plants to promote growth, treat, and prevent infectious diseases lead to the development of antibiotic-resistant bacteria in animals. These bacteria are transmitted from animals to humans through food and environmental exposure. The environment plays a critical role in the circulation and persistence of antibiotic-resistant bacteria and genes, posing a significant threat to human and animal health. This article also highlights how ARGs are spread in the environment through the transfer of genetic material between bacteria. This transfer can occur naturally or through human activities such as the use of antibiotics in agriculture and waste management practices. Conclusion: It is important to integrate the One Health approach into the public health system to effectively tackle the emergence and spread of ARB and genes that code for resistance to different antibiotics.
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Affiliation(s)
| | - Adebowale Toba Odeyemi
- Department of Microbiology, Landmark University SDG Groups 2 and 3, Omu-Aran, Kwara State, Nigeria
| | | | | | - Ibiwumi Ayo-ajayi
- Department of Computer Science, Afe Babalola University, Ado Ekiti, Ekiti State, Nigeria
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22
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Sutton KF, Ashley LW. Antimicrobial resistance in the United States: Origins and future directions. Epidemiol Infect 2024; 152:e33. [PMID: 38343135 PMCID: PMC10894903 DOI: 10.1017/s0950268824000244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024] Open
Abstract
Antimicrobial resistance (AMR) remains a critical public health problem that pervades hospitals and health systems worldwide. The ongoing AMR crisis is not only concerning for patient care but also healthcare delivery and quality. This article outlines key components of the origins of AMR in the United States and how it presents across the American healthcare system. Numerous factors contributed to the crisis, including agricultural antibiotic use, wasteful prescribing practices in health care, conflicting behaviours among patients and clinicians, patient demand and satisfaction, and payment and reimbursement models that incentivize inappropriate antibiotic use. To combat AMR, clinicians, healthcare professionals, and legislators must continue to promote and implement innovative solutions, including antibiotic stewardship programmes (ASPs), hand hygiene protocols, ample supply of personal protective equipment (PPE), standardized treatment guidelines for antibiotic prescribing, clinician and patient educational programmes, and health policy initiatives. With the rising prevalence of multi-drug resistant bacterial infections, AMR must become a greater priority to policymakers and healthcare stakeholders.
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Affiliation(s)
- Kent F. Sutton
- Duke University School of Medicine, Duke University Medical Center, Durham, NC, USA
| | - Lucas W. Ashley
- Brody School of Medicine at East Carolina University, Greenville, NC, USA
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23
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Hamilton RA, Lond B, Wilde L, Williamson I. Understanding the lived-experience and support-needs of people living with antimicrobial resistance in the UK through interpretative phenomenological analysis. Sci Rep 2024; 14:3403. [PMID: 38337017 PMCID: PMC10858033 DOI: 10.1038/s41598-024-53814-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 02/05/2024] [Indexed: 02/12/2024] Open
Abstract
In the UK nearly 54,000 infections were caused by serious resistant bacteria in 2022 but there is a lack of evidence regarding the long-term impact on patients' lives nor what support they need. This research aimed to answer the question: "What are the key elements of experience and support needs of people living with AMR in the UK?". In-depth semi-structured interviews were undertaken with nine people who had been living with resistant infections or colonisation for 12-months or longer. Interpretive Phenomenological Analysis was used to study the accounts and illustrate individuals' experiences and support-needs. Participants experienced marginalisation and isolation but also empowerment; described across three major themes: (1) I live in fear and stigma: The long-term impact of AMR; (2) I am battling on my own: A journey toward self-advocacy; and (3) I like to share my story: The role of AMR communities. All participants perceived a lack of knowledge, information, and support from clinicians; difficulties accessing reliable and understandable information; and lack of understanding from family and friends. Charities and online groups provided support with coping with their situation and improving mental health and wellbeing. Understandable and relatable information regarding the science of AMR, transmission, prevention, and living with AMR needs to be provided by clinicians and healthcare services around the time of diagnosis to readily available after diagnosis.
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Affiliation(s)
| | - Benjamin Lond
- Department of Psychology, De Montfort University, Leicester, UK
| | - Lucina Wilde
- School of Pharmacy, De Montfort University, Leicester, UK
| | - Iain Williamson
- Department of Psychology, De Montfort University, Leicester, UK
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24
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Di Napoli M, Castagliuolo G, Pio S, Di Nardo I, Russo T, Antonini D, Notomista E, Varcamonti M, Zanfardino A. Study of the Antimicrobial Activity of the Human Peptide SQQ30 against Pathogenic Bacteria. Antibiotics (Basel) 2024; 13:145. [PMID: 38391531 PMCID: PMC10886087 DOI: 10.3390/antibiotics13020145] [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: 12/22/2023] [Revised: 01/19/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024] Open
Abstract
Given the continuous increase in antibiotic resistance, research has been driven towards the isolation of new antimicrobial molecules. Short, charged, and very hydrophobic antimicrobial peptides have a direct action against biological membranes, which are less prone to developing resistance. Using a bioinformatic tool, we chose the SQQ30 peptide, isolated from the human SOGA1 protein. The antimicrobial activity of this peptide against various Gram-negative and Gram-positive bacterial strains and against a fungal strain was studied. A mechanism of action directed against biological membranes was outlined. When administered in combination with the antibiotic ciprofloxacin and with the TRS21 (buforin II), another antimicrobial peptide, SQQ30 can be used with a lower MIC, showing additivity and synergism, respectively. Particularly interesting is the ability of SQQ30 to bind LPS in Gram-negative strains, preventing the eukaryotic cell from releasing inflammatory mediators. Our study indicates SQQ30 as a novel and promising antimicrobial agent.
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Affiliation(s)
- Michela Di Napoli
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Giusy Castagliuolo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Sara Pio
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Ilaria Di Nardo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Teresa Russo
- IPCB-Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, 80125 Naples, Italy
| | - Dario Antonini
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy
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25
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Wang X, Li S, Du M, Liu N, Shan Q, Zou Y, Wang J, Zhu Y. A novel glycine-rich peptide from Zophobas atratus, coleoptericin B, targets bacterial membrane and protects against Klebsiella pneumoniae-induced mastitis in mice. J Antimicrob Chemother 2024; 79:417-428. [PMID: 38267384 DOI: 10.1093/jac/dkad397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 12/10/2023] [Indexed: 01/26/2024] Open
Abstract
OBJECTIVES The growing occurrence of bacterial resistance has spawned the development of novel antimicrobial agents. Antimicrobial peptides, a class of small molecules with antimicrobial activity, have been regarded as the ideal alternatives to antibiotics. METHODS In this study, we amplified a new type of Zophobas atratus coleoptericin (denoted coleoptericin B) through rapid amplification of cDNA ends (RACE) PCR and expressed recombinant Z. atratus coleoptericin B (rZA-col B) by prokaryotic expression. Subsequently, we evaluated the antimicrobial effect and biocompatibility of rZA-col B in vivo, investigated its antimicrobial mechanism, and assessed its therapeutic effect in a murine model of mastitis caused by MDR Klebsiella pneumoniae. RESULTS The in vivo studies demonstrated that rZA-col B possesses broad-spectrum antimicrobial activity against both Gram-positive and Gram-negative bacteria. It exhibited less than 1.5% haemolysis and 10% cytotoxicity, even at a concentration of 128 μM. Additionally, rZA-col B had a minimal risk of inducing drug resistance. Furthermore, rZA-col B could disrupt the integrity of bacterial membranes, induce membrane permeabilization and ultimately lead to bacterial death. Importantly, rZA-col B also alleviated mastitis caused by MDR K. pneumoniae in a murine model by enhancing bacterial clearance, reducing neutrophil infiltration, decreasing TNF-α and IL-1β expression, and protecting the mammary barrier. CONCLUSIONS rZA-col B may be a promising antibacterial agent to combat MDR bacterial infection.
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Affiliation(s)
- Xue Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China
| | - Shuxian Li
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China
| | - Mengze Du
- Animal Science and Technology College, Beijing University of Agriculture, Beijing 102206, China
| | - Ning Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang 150030, China
| | - Qiang Shan
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China
| | - Yunjing Zou
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China
| | - Jiufeng Wang
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China
| | - Yaohong Zhu
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Sanya Institute of China Agricultural University, Sanya, Hainan 572025, China
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Nilay S, Shreya P, Vivek S. Assessment of antibacterial drug utilization patterns and antibiogram in infectious diseases: a prospective cross-sectional study. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:1053-1059. [PMID: 37578516 DOI: 10.1007/s00210-023-02659-3] [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: 07/08/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
BACKGROUND Antibacterial drugs are successful in combating most types of infections. Irrational use and higher consumption of these drugs can give rise to the antibiotic resistance globally. OBJECTIVE To evaluate antibacterial drug prescribing patterns and antibiogram in infectious disease cases admitted to the hospital. METHODS A cross-sectional, observational study was conducted from September 2019 to February 2020 among inpatients ward at the hospital after ethical approval. All the data was analysed by the mean and percentage values using Microsoft excel. RESULTS Out of 250 admitted patients, males and females were 156 (62%) and 94 (38%) respectively. The majority of patients 79 (32%) belonged to the age group of 20-40 years. The majority of prescriptions reported were for viral fever 48 (19%), lower respiratory tract infections 40 (16%) and dengue 33 (13%). Antibacterial drugs administered through the intravenous route and the oral route were 301 (83%) and 63 (17%) respectively. The most frequently utilized antibacterial drugs were beta-lactam class ceftriaxone 149 (60%) and the fixed-dose combination, amoxicillin plus clavulanic acid 65 (26%). Further highly prescribed antibacterial drugs were metronidazole 52 (21%), azithromycin 36 (15%), and levofloxacin 24 (10%). In Gram-negative bacteria, Escherichia coli 6 (30%) contributed majorly, while in Gram-positive coagulase-negative, Staphylococci 6 (30%) contributed the highest growth of bacteria for the specific infections in the admitted cases. CONCLUSION Ceftriaxone and the amoxicillin-clavulanic acid combination were highly prescribed among all antibacterial drugs, followed by metronidazole and azithromycin. The current study showed that in the antibiogram pattern, Escherichia coli and coagulase-negative Staphylococci contributed significantly as causative organisms for infectious disease cases. The present study highlighted demographic distribution, infectious diseases with their antibacterial drug utilization patterns and antibiogram assessment in the admitted patients.
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Affiliation(s)
- Solanki Nilay
- Department of Pharmacology, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, CHARUSAT Campus, Changa, 388421, Gujarat, India.
| | - Patel Shreya
- Department of Pharmacology, Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology, CHARUSAT Campus, Changa, 388421, Gujarat, India
| | - Siddhpura Vivek
- CHARUSAT Hospital, CHARUSAT Health Care Campus, Changa, 388421, Gujarat, India
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27
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Sabino YNV, de Melo MD, da Silva GC, Mantovani HC. Unraveling the diversity and dissemination dynamics of antimicrobial resistance genes in Enterobacteriaceae plasmids across diverse ecosystems. J Appl Microbiol 2024; 135:lxae028. [PMID: 38323496 DOI: 10.1093/jambio/lxae028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/08/2024] [Accepted: 02/05/2024] [Indexed: 02/08/2024]
Abstract
AIM The objective of this study was to investigate the antimicrobial resistance genes (ARGs) in plasmids of Enterobacteriaceae from soil, sewage, and feces of food-producing animals and humans. METHODS AND RESULTS The plasmid sequences were obtained from the NCBI database. For the identification of ARG, comprehensive antibiotic resistance database (CARD), and ResFinder were used. Gene conservation and evolution were investigated using DnaSP v.6. The transfer potential of the plasmids was evaluated using oriTfinder and a MOB-based phylogenetic tree was reconstructed using Fastree. We identified a total of 1064 ARGs in all plasmids analyzed, conferring resistance to 15 groups of antibiotics, mostly aminoglycosides, beta-lactams, and sulfonamides. The greatest number of ARGs per plasmid was found in enterobacteria from chicken feces. Plasmids from Escherichia coli carrying multiple ARGs were found in all ecosystems. Some of the most abundant genes were shared among all ecosystems, including aph(6)-Id, aph(3'')-Ib, tet(A), and sul2. A high level of sequence conservation was found among these genes, and tet(A) and sul2 are under positive selective pressure. Approximately 62% of the plasmids carrying at least one ARG were potentially transferable. Phylogenetic analysis indicated a potential co-evolution of Enterobacteriaceae plasmids in nature. CONCLUSION The high abundance of Enterobacteriaceae plasmids from diverse ecosystems carrying ARGs reveals their widespread distribution and importance.
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Affiliation(s)
| | - Mariana Dias de Melo
- Department of Microbiology, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
| | - Giarlã Cunha da Silva
- Department of Microbiology, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
| | - Hilario Cuquetto Mantovani
- Department of Microbiology, Universidade Federal de Viçosa, 36570-900 Viçosa, Minas Gerais, Brazil
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison, 53706, Madison, WI, USA
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28
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Haberl Meglič S, Slokar D, Miklavčič D. Inactivation of antibiotic-resistant bacteria Escherichia coli by electroporation. Front Microbiol 2024; 15:1347000. [PMID: 38333581 PMCID: PMC10850576 DOI: 10.3389/fmicb.2024.1347000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
Introduction In modern times, bacterial infections have become a growing problem in the medical community due to the emergence of antibiotic-resistant bacteria. In fact, the overuse and improper disposal of antibiotics have led to bacterial resistance and the presence of such bacteria in wastewater. Therefore, it is critical to develop effective strategies for dealing with antibiotic-resistant bacteria in wastewater. Electroporation has been found to be one of the most promising complementary techniques for bacterial inactivation because it is effective against a wide range of bacteria, is non-chemical and is highly optimizable. Many studies have demonstrated electroporation-assisted inactivation of bacteria, but rarely have clinical antibiotics or bacteria resistant to these antibiotics been used in the study. Therefore, the motivation for our study was to use a treatment regimen that combines antibiotics and electroporation to inactivate antibiotic-resistant bacteria. Methods We separately combined two antibiotics (tetracycline and chloramphenicol) to which the bacteria are resistant (with a different resistance mode) and electric pulses. We used three different concentrations of antibiotics (40, 80 and 150 µg/ml for tetracycline and 100, 500 and 2000 µg/ml for chloramphenicol, respectively) and four different electric field strengths (5, 10, 15 and 20 kV/cm) for electroporation. Results and discussion Our results show that electroporation effectively enhances the effect of antibiotics and inactivates antibiotic-resistant bacteria. The inactivation rate for tetracycline or chloramphenicol was found to be different and to increase with the strength of the pulsed electric field and/or the concentration of the antibiotic. In addition, we show that electroporation has a longer lasting effect (up to 24 hours), making bacteria vulnerable for a considerable time. The present work provides new insights into the use of electroporation to inactivate antibiotic-resistant bacteria in the aquatic environment.
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Affiliation(s)
- Saša Haberl Meglič
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
| | - Dejan Slokar
- Centre of Excellence for Biosensors, Instrumentation and Process Control, Ajdovščina, Slovenia
| | - Damijan Miklavčič
- Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
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29
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Martínez-Trejo A, Ruiz-Ruiz JM, Gonzalez-Avila LU, Saldaña-Padilla A, Hernández-Cortez C, de Jesús Colmenero-Solís R, Bello-López JM, Castro-Escarpulli G. The CRISPR-Cas system in clinical strains of Acinetobacter baumannii: an in-silico analysis. Lett Appl Microbiol 2024; 77:ovae003. [PMID: 38211976 DOI: 10.1093/lambio/ovae003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 12/29/2023] [Accepted: 01/10/2024] [Indexed: 01/13/2024]
Abstract
Acinetobacter baumannii is a relevant bacterium due to its high-resistance profile. It is well known that antimicrobial resistance is primarily linked to mutations and the acquisition of external genomic material, such as plasmids or phages, to which the Clustered Regularly Interspaced Short Palindromic Repeats associated with Cas proteins, or CRISPR-Cas, system is related. It is known that the system can influence the acquisition of foreign genetic material and play a role in various physiological pathways. In this study, we conducted an in-silico analysis using 91 fully assembled genomes of clinical strains obtained from the NCBI database. Among the analyzed genomes, the I-F1 subtype of the CRISPR-Cas system was detected showcasing variations in architecture and phylogeny. Using bioinformatic tools, we determined the presence, distribution, and specific characteristics of the CRISPR-Cas system. We found a possible association of the system with resistance genes but not with virulence determinants. Analysis of the system's components, including spacer sequences, suggests its potential role in protecting against phage infections, highlighting its protective function.
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Affiliation(s)
- Arturo Martínez-Trejo
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Juan Manuel Ruiz-Ruiz
- Laboratorio Clínico, Unidad Médica de Alta Especialidad, Hospital de Pediatría Dr. Silvestre Frenk Freud, Instituto Mexicano del Seguro Social, Mexico City 06720, Mexico
| | - Luis Uriel Gonzalez-Avila
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Andres Saldaña-Padilla
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
- Laboratorio de Bioquímica Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Cecilia Hernández-Cortez
- Laboratorio de Bioquímica Microbiana, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Raúl de Jesús Colmenero-Solís
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | | | - Graciela Castro-Escarpulli
- Laboratorio de Investigación Clínica y Ambiental, Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
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Hafeez S, Zafar Paracha R, Adnan F. Designing of fragment based inhibitors with improved activity against E. coli AmpC β-lactamase compared to the conventional antibiotics. Saudi J Biol Sci 2024; 31:103884. [PMID: 38125736 PMCID: PMC10730856 DOI: 10.1016/j.sjbs.2023.103884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 11/19/2023] [Accepted: 11/24/2023] [Indexed: 12/23/2023] Open
Abstract
One of the most common primary resistance mechanism of multi-drug resistant (MDR) Gram negative pathogenic bacteria to combat β-lactam antibiotics, such as penicillins, cephalosporins and carbapenems is the generation of β- lactamases. The uropathogenic E. coli is mostly getting multi-drug resistance due to the synthesis of AmpC β-lactamases and therefore new antibiotics and inhibitors are needed to treat the evolving infections. The current study was designed for targetting AmpC β-lactamase of E. coli using molecular docking based virtual screening, linking fragments for designing novel compounds and binding mode analysis using molecular dynamic simulation with target protein. The FCH group all-purpose fragment library consisting of 9388 fragments has been screened against AmpC β-lactamase protein of E. coli and the antibiotics and anti-infectives used in treatment of Urinary tract Infections (UTIs) were also screened with AmpC β-lactamase protein. Among the 9388 fragments, 339 fragment candidates were selected and linked with cefepime antibiotic having maximum binding affinity for AmpC target protein. Computational analysis of interactions as well as molecular dynamics (MD) simulations were also conducted for identifying the most promising ligand-pocket complexes from docking investigations to comprehend their thermodynamic properties and verify the docking outcomes as well. Overall, the linked complexes (LCs) showed good binding interactions with AmpC β-lactamase. Interestingly, our fragment-based LCs remained relatively stable in comparison with cefepime antibiotic. Moreover, S12 fragment linked complex remained the most stable during 50 ns with remarkable number of interactions indicating it as promising candidate in novel lead discovery against MDR E. coli infections.
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Affiliation(s)
- Sidrah Hafeez
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Rehan Zafar Paracha
- School of Interdisciplinary Engineering and Sciences (SINES), National University of Science and Technology (NUST), Islamabad 44000, Pakistan
| | - Fazal Adnan
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
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Boroujeni MB, Mohebi S, Malekian A, Shahraeini SS, Gharagheizi Z, Shahkolahi S, Sadeghi RV, Naderifar M, Akbarizadeh MR, Soltaninejad S, Moghadam ZT, Moghadam MT, Mirzadeh F. The therapeutic effect of engineered phage, derived protein and enzymes against superbug bacteria. Biotechnol Bioeng 2024; 121:82-99. [PMID: 37881139 DOI: 10.1002/bit.28581] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/18/2023] [Accepted: 10/15/2023] [Indexed: 10/27/2023]
Abstract
Defending against antibiotic-resistant infections is similar to fighting a war with limited ammunition. As the new century unfolded, antibiotic resistance became a significant concern. In spite of the fact that phage treatment has been used as an effective means of fighting infections for more than a century, researchers have had to overcome many challenges of superbug bacteria by manipulating phages and producing engineered enzymes. New enzymes and phages with enhanced properties have a significant impact on the ability to fight antibiotic-resistant infections, which is considered a window of hope for the future. This review, therefore, illustrates not only the challenges caused by antibiotic resistance and superbug bacteria but also the engineered enzymes and phages that are being developed to solve these issues. Our study found that engineered phages, phage proteins, and enzymes can be effective in treating superbug bacteria and destroying the biofilm caused by them. Combining these engineered compounds with other antimicrobial substances can increase their effectiveness against antibiotic-resistant bacteria. Therefore, engineered phages, proteins, and enzymes can be used as a substitute for antibiotics or in combination with antibiotics to treat patients with superbug infections in the future.
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Affiliation(s)
| | - Samane Mohebi
- Department of Bacteriology and Virology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Azam Malekian
- Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran
| | - Seyed Sadegh Shahraeini
- Department of Medical Biotechnology, Drug Design and Bioinformatics Unit, Biotechnology Research Centre, Pasteur Institute of Iran, Tehran, Iran
| | - Zahra Gharagheizi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shaghayegh Shahkolahi
- Department of Microbiology, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Rezvaneh Vahedian Sadeghi
- Department of Microbiology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahin Naderifar
- School of Nursing & Midwifery, Zabol University of Medical Sciences, Zabol, Iran
| | | | | | - Zahra Taati Moghadam
- School of Nursing and Midwifery, Guilan University of Medical Sciences, Rasht, Iran
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Paneth A, Kaproń B, Plech T, Paduch R, Trotsko N, Paneth P. Combined In Silico and In Vitro Analyses to Assess the Anticancer Potential of Thiazolidinedione-Thiosemicarbazone Hybrid Molecules. Int J Mol Sci 2023; 24:17521. [PMID: 38139350 PMCID: PMC10743653 DOI: 10.3390/ijms242417521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/09/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023] Open
Abstract
The number of people affected by cancer and antibiotic-resistant bacterial infections has increased, such that both diseases are already seen as current and future leading causes of death globally. To address this issue, based on a combined in silico and in vitro approach, we explored the anticancer potential of known antibacterials with a thiazolidinedione-thiosemicarbazone (TZD-TSC) core structure. A cytotoxicity assessment showed encouraging results for compounds 2-4, with IC50 values against T98G and HepG2 cells in the low micromolar range. TZD-TSC 3 proved to be most toxic to cancer cell lines, with IC50 values of 2.97 ± 0.39 µM against human hepatoma HepG2 cells and IC50 values of 28.34 ± 2.21 µM against human glioblastoma T98G cells. Additionally, compound 3 induced apoptosis and showed no specific hemolytic activity. Furthermore, treatment using 3 on cancer cell lines alters these cells' morphology and further suppresses migratory activity. Molecular docking, in turn, suggests that 3 would have the capacity to simultaneously target HDACs and PPARγ, by the activation of PPARγ and the inhibition of both HDAC4 and HDAC8. Thus, the promising preliminary results obtained with TZD-TSC 3 represent an encouraging starting point for the rational design of novel chemotherapeutics with dual antibacterial and anticancer activities.
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Affiliation(s)
- Agata Paneth
- Chair and Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 20-059 Lublin, Poland;
| | - Barbara Kaproń
- Department of Clinical Genetics, Faculty of Medicine, Medical University of Lublin, 20-080 Lublin, Poland
| | - Tomasz Plech
- Department of Pharmacology, Faculty of Health Sciences, Medical University of Lublin, 20-080 Lublin, Poland;
| | - Roman Paduch
- Department of Virology and Immunology, Institute of Biological Sciences, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, 20-033 Lublin, Poland;
| | - Nazar Trotsko
- Chair and Department of Organic Chemistry, Faculty of Pharmacy, Medical University of Lublin, 20-059 Lublin, Poland;
| | - Piotr Paneth
- Institute of Applied Radiation Chemistry, Faculty of Chemistry, Lodz University of Technology, 90-924 Lodz, Poland
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Arowolo MT, Orababa OQ, Olaitan MO, Osibeluwo BV, Essiet UU, Batholomew OH, Ogunrinde OG, Lagoke OA, Soriwei JD, Ishola OD, Ezeani OM, Onishile AO, Olumodeji E. Prevalence of carbapenem resistance in Acinetobacter baumannii and Pseudomonas aeruginosa in sub-Saharan Africa: A systematic review and meta-analysis. PLoS One 2023; 18:e0287762. [PMID: 38015906 PMCID: PMC10684001 DOI: 10.1371/journal.pone.0287762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 06/13/2023] [Indexed: 11/30/2023] Open
Abstract
Carbapenems are effective drugs against bacterial pathogens and resistance to them is considered a great public health threat, especially in notorious nosocomial pathogens like Acinetobacter baumannii and Pseudomonas aeruginosa. In this study, we aimed to determine the prevalence of carbapenem resistance in A. baumannii and P. aeruginosa infections in Sub-Saharan Africa. Databases (PubMed, Scopus, Web of Science, and African Journal Online) were systematically searched following the Preferred Reporting Items for Systematic review and meta-analysis protocols (PRISMA-P) 2020 statements for articles reporting carbapenem-resistant Acinetobacter baumannii (CRAB) and carbapenem-resistant Pseudomonas aeruginosa (CRPA) prevalence between 2012 and 2022. Pooled prevalence was determined with the random effect model and funnel plots were used to determine heterogeneity in R. A total of 47 articles were scanned for eligibility, among which 25 (14 for carbapenem-resistant A. baumannii and 11 for carbapenem-resistant P. aeruginosa) were included in the study after fulfilling the eligibility criteria. The pooled prevalence of CRPA in the present study was estimated at 8% (95% CI; 0.02-0.17; I2 = 98%; P <0.01). There was high heterogeneity (Q = 591.71, I2 = 98.9%; P<0.0001). In addition, this study's pooled prevalence of CRAB was estimated at 20% (95% CI; 0.04-0.43; I2 = 99%; P <0.01). There was high heterogeneity (Q = 1452.57, I2 = 99%; P<0.0001). Also, a funnel plot analysis of the studies showed high degree of heterogeneity. The carbapenemase genes commonly isolated from A. baumannii in this study include blaOXA23, blaOXA48, blaGES., blaNDM, blaVIM, blaOXA24, blaOXA58, blaOXA51, blaSIM-1, blaOXA40, blaOXA66, blaOXA69, blaOXA91, with blaOXA23 and blaVIM being the most common. On the other hand, blaNDM, blaVIM, blaIMP, blaOXA48, blaOXA51, blaSIM-1, blaOXA181, blaKPC, blaOXA23, blaOXA50 were the commonly isolated carbapenemase genes in P. aeruginosa, among which blaVIM and blaNDM genes were the most frequently isolated. Surveillance of drug-resistant pathogens in Sub-Saharan Africa is essential in reducing the region's disease burden. This study has shown that the region has significantly high multidrug-resistant pathogen prevalence. This is a wake-up call for policymakers to put in place measures to reduce the spread of these critical priority pathogens.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jeffrey Difiye Soriwei
- Department of Public Health in Microbiology, University of Bedfordshire, Luton, United Kingdom
| | | | | | - Aminat Oyeronke Onishile
- Faculty of Health Studies, School of Nursing and Healthcare Leadership, University of Bradford, West Yorkshire, England, United Kingdom
| | - Elizabeth Olumodeji
- Department of Biology, Texas Women University, Denton, TX, United States of America
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Bosco K, Lynch S, Sandaradura I, Khatami A. Therapeutic Phage Monitoring: A Review. Clin Infect Dis 2023; 77:S384-S394. [PMID: 37932121 DOI: 10.1093/cid/ciad497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
With the global rise in antimicrobial resistance, there has been a renewed interest in the application of therapeutic phages to treat bacterial infections. Therapeutic phage monitoring (TPM) is proposed as an essential element of phage therapy (PT) protocols to generate data and fill knowledge gaps regarding the in vivo efficacy of therapeutic phages, patients' immune responses to PT, and the wider ecological effects of PT. By monitoring phage concentrations in blood and tissues, together with immune responses and possible ecological changes during PT, TPM may enable the optimization of dosing and the implementation of precision medicine approaches. Furthermore, TPM can validate diagnostic surrogates of efficacy, direct research efforts, and establish quality assurance indicators for therapeutic phage products. Thus, TPM holds great potential for enhancing our understanding of the multidirectional phage-bacteria-host interactions and advancing "best practice" PT, ultimately improving patient care.
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Affiliation(s)
- Kiran Bosco
- Centre for Infectious Diseases and Microbiology, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
- Faculty of Medicine and Health, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Stephanie Lynch
- Centre for Infectious Diseases and Microbiology, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
- Faculty of Medicine and Health, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Indy Sandaradura
- Centre for Infectious Diseases and Microbiology, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
- Faculty of Medicine and Health, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Infectious Diseases and Microbiology, The Children's Hospital at Westmead, Westmead, New South Wales, Australia
- Institute of Clinical Pathology and Medical Research, New South Wales Health Pathology, Westmead Hospital, Westmead, New South Wales, Australia
| | - Ameneh Khatami
- Faculty of Medicine and Health, Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
- Department of Infectious Diseases and Microbiology, The Children's Hospital at Westmead, Westmead, New South Wales, Australia
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Shakerimoghaddam A, Moghaddam AD, Barghchi B, Pisheh Sanani MG, Azami P, Kalmishi A, Sabeghi P, Motavalli F, Khomartash MS, Mousavi SH, Nikmanesh Y. Prevalence of Pseudomonas aeruginosa and its antibiotic resistance in patients who have received Hematopoietic Stem-Cell Transplantation; A globally Systematic Review. Microb Pathog 2023; 184:106368. [PMID: 37769854 DOI: 10.1016/j.micpath.2023.106368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Gram-negative bacteria are infectious and life-threatening agents after hematopoietic stem cell transplantation (HSCT). So, this study aimed to investigate the prevalence of Pseudomonas aeruginosa and its antibiotic resistance in patients who have received Hematopoietic Stem-Cell Transplantation through a systematic review. The systematic search was done with key words; Pseudomonas aeruginosa, hematopoietic stem cell transplantation from 2000 to the end of July 2023 in Google Scholar and PubMed/Medline, Scopus, and Web of Science. Twelve studies were able to include our study. Quality assessment of studies was done by Appraisal tool for Cross-Sectional Studies. The most of the included studies were conducted as allo-HSCT. Infections such as respiratory infection, urinary infection and bacteremia have occurred. The rate of prevalence with P. aeruginosa has varied between 3 and 100%. The average age of the participants was between 1 and 74 years. The rate of prevalence of P. aeruginosa resistant to several drugs has been reported to be variable, ranging from 20 to 100%. The highest antibiotic resistance was reported against cefotetan (100%), and the lowest was related to tobramycin (1.8%) followed by amikacin, levofloxacin and ciprofloxacin with the prevalence of 16.6%. Our findings showed a high prevalence and antibiotic resistance rate of P. aeruginosa in Hematopoietic stem cell transplantation. Therefore, more serious health measures should be taken in patients after transplantation.
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Affiliation(s)
- Ali Shakerimoghaddam
- Medical Biotechnology Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Arasb Dabbagh Moghaddam
- Infectious Diseases Research Center, Aja University of Medical Sciences, Tehran, Iran; Department of Public Health & Nutrition, Aja University of Medical Sciences, Tehran, Iran
| | - Bita Barghchi
- Medical School, Islamic Azad University, Tehran, Branch, Tehran, Iran
| | | | - Pouria Azami
- Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Abolfazl Kalmishi
- Department of Internal and Surgical Nursing Faculty of Nursing and Midwifery, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Paniz Sabeghi
- Medical School, Shiraz University of Medical Sciences, Shiraz Branch, Shiraz, Iran
| | - Farhad Motavalli
- Medical Biotechnology Research Center, AJA University of Medical Sciences, Tehran, Iran
| | | | - Seyyed Hossein Mousavi
- Department of Cardiology, School of Medicine, AJA University of Medical Sciences, Tehran, Iran
| | - Yousef Nikmanesh
- Gastroenterohepatology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Agodi A, Montineri A, Manuele R, Noto P, Carpinteri G, Castiglione G, Grassi P, Lazzara A, Mattaliano AR, Granvillano G, La Mastra C, La Rosa MC, Maugeri A, Barchitta M. Molecular Typing and Resistance Profile of Acinetobacter baumannii Isolates during the COVID-19 Pandemic: Findings from the "EPIRADIOCLINF" Project. Antibiotics (Basel) 2023; 12:1551. [PMID: 37887252 PMCID: PMC10603994 DOI: 10.3390/antibiotics12101551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/04/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023] Open
Abstract
Due to the COVID-19 pandemic, there has been a shift in focus towards controlling the spread of SARS-CoV-2, which has resulted in the neglect of traditional programs aimed at preventing healthcare-associated infections and combating antimicrobial resistance. The present work aims to characterize the colonization or infection with Acinetobacter baumannii of COVID-19 patients and to identify any clonality between different isolates. Specifically, data and resistance profiles of A. baumannii isolates were prospectively collected from patients recruited by the EPIRADIOCLINF project. Pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST) were used for molecular typing. Overall, we analyzed 64 isolates of A. baumannii from 48 COVID-19 patients. According to our analysis, we have identified the spread of a clonally related isolate, referred to as B. The PFGE pattern B includes four subtypes: B1 (consisting of 37 strains), B2 (11), B3 (5), and B4 (2). Furthermore, in the isolates that were examined using MLST, the most observed sequence type was ST/281. In terms of resistance profiles, 59 out of the total isolates (92.2%) were found to be resistant to gentamicin, carbapenems, ciprofloxacin, and tobramycin. The isolation and identification of A. baumannii from COVID-19 patients, along with the high levels of transmission observed within the hospital setting, highlight the urgent need for the implementation of effective prevention and containment strategies.
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Affiliation(s)
- Antonella Agodi
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, 95123 Catania, Italy; (C.L.M.); (M.C.L.R.); (A.M.); (M.B.)
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Arturo Montineri
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Rosa Manuele
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Paola Noto
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Giuseppe Carpinteri
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Giacomo Castiglione
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Patrizia Grassi
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Antonio Lazzara
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Anna Rita Mattaliano
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Giuseppa Granvillano
- Azienda Ospedaliero-Universitaria Policlinico AOUP “G. Rodolico-San Marco”, 95123 Catania, Italy; (A.M.); (R.M.); (G.C.); (A.L.); (A.R.M.)
| | - Claudia La Mastra
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, 95123 Catania, Italy; (C.L.M.); (M.C.L.R.); (A.M.); (M.B.)
| | - Maria Clara La Rosa
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, 95123 Catania, Italy; (C.L.M.); (M.C.L.R.); (A.M.); (M.B.)
| | - Andrea Maugeri
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, 95123 Catania, Italy; (C.L.M.); (M.C.L.R.); (A.M.); (M.B.)
| | - Martina Barchitta
- Department of Medical and Surgical Sciences and Advanced Technologies “GF Ingrassia”, University of Catania, 95123 Catania, Italy; (C.L.M.); (M.C.L.R.); (A.M.); (M.B.)
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Ruiz-Ramos J, Escolà-Vergé L, Monje-López ÁE, Herrera-Mateo S, Rivera A. The Interventions and Challenges of Antimicrobial Stewardship in the Emergency Department. Antibiotics (Basel) 2023; 12:1522. [PMID: 37887223 PMCID: PMC10604141 DOI: 10.3390/antibiotics12101522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/25/2023] [Accepted: 10/06/2023] [Indexed: 10/28/2023] Open
Abstract
Over the last decades, we have witnessed a constant increase in infections caused by multi-drug-resistant strains in emergency departments. Despite the demonstrated effectiveness of antimicrobial stewardship programs in antibiotic consumption and minimizing multi-drug-resistant bacterium development, the characteristics of emergency departments pose a challenge to their implementation. The inclusion of rapid diagnostic tests, tracking microbiological results upon discharge, conducting audits with feedback, and implementing multimodal educational interventions have proven to be effective tools for optimizing antibiotic use in these units. Nevertheless, future multicenter studies are essential to determine the best way to proceed and measure outcomes in this scenario.
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Affiliation(s)
- Jesus Ruiz-Ramos
- Pharmacy Department, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Sant Pau Institute of Biomedical Research (IIb Sant Pau), 08025 Barcelona, Spain (A.R.)
| | - Laura Escolà-Vergé
- Infectious Diseases Department, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- CIBERINFEC, ISCIII—CIBER, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Álvaro Eloy Monje-López
- Pharmacy Department, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain;
- Sant Pau Institute of Biomedical Research (IIb Sant Pau), 08025 Barcelona, Spain (A.R.)
| | - Sergio Herrera-Mateo
- Sant Pau Institute of Biomedical Research (IIb Sant Pau), 08025 Barcelona, Spain (A.R.)
- Emergency Department, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain
| | - Alba Rivera
- Sant Pau Institute of Biomedical Research (IIb Sant Pau), 08025 Barcelona, Spain (A.R.)
- Microbiology Department, Hospital Santa Creu i Sant Pau, 08025 Barcelona, Spain
- Genetics and Microbiology Department, Universitat Autònoma de Barcelona, 08025 Barcelona, Spain
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Wang S, Li J, Dai J, Zhang X, Tang W, Li J, Liu Y, Wu X, Fan X. Establishment and Validation of Models for the Risk of Multi-Drug Resistant Bacteria Infection and Prognosis in Elderly Patients with Pulmonary Infection: A Multicenter Retrospective Study. Infect Drug Resist 2023; 16:6549-6566. [PMID: 37817839 PMCID: PMC10561615 DOI: 10.2147/idr.s422564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023] Open
Abstract
Purpose The aim of this study was to establish risk prediction and prognosis models for multidrug-resistant bacterial infections (MDRB) in elderly patients with pulmonary infections in a multicenter setting. Patients and Methods This study is a retrospective cohort analysis in Anhui province of China. Data dimension reduction and feature selection were performed using the lasso regression model. Multifactorial regression analysis to identify risk factors associated with MDRB infection and prognosis. The relevant risks of each patient in the prognostic training cohort were scored based on prognostic independent risk factors. Subsequently, patients were classified into high-risk and low-risk groups, and survival differences were compared between them. Finally, models were established based on independent risk factors for infection, risk groups, and independent prognostic factors, and were presented on nomograms. The predictive accuracy of the model was assessed using corresponding external validation set data. Results The study cohort comprised 994 elderly patients with pulmonary infection. Multivariate analysis revealed that endotracheal intubation, previous antibiotic use beyond 2 weeks, and concurrent respiratory failure or cerebrovascular disease were independent risk factors associated with the incidence of MDRB infection. Cox regression analysis identified respiratory failure, malnutrition, an APACHE II score of at least 20, and higher blood creatinine levels as independent prognostic risk factors. The models were validated using an external validation dataset from multiple centers, which demonstrated good diagnostic ability and a good fit with a fair benefit. Conclusion In conclusion, our study provides an appropriate and generalisable assessment of risk factors affecting infection and prognosis in patients with MDRB, contributing to improved early identification of patients at higher risk of infection and death, and appropriately guiding clinical management.
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Affiliation(s)
- Shu Wang
- The Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
- Department of Geriatrics, The Third Affiliated Hospital of Anhui Medical University (The First People’s Hospital of Hefei), Hefei, Anhui Province, People’s Republic of China
| | - Jing Li
- Department of Geriatrics, Hefei Binhu Hospital, Hefei, Anhui Province, People’s Republic of China
- Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Jinghong Dai
- Department of Geriatrics, Hefei Binhu Hospital, Hefei, Anhui Province, People’s Republic of China
| | - Xuemin Zhang
- The Department of Respiratory and Critical Care Medicine, Fuyang Hospital Affiliated to Anhui Medical University, Fuyang, Anhui Province, People’s Republic of China
| | - Wenjuan Tang
- The Department of Respiratory and Critical care medicine, Anqing Municipal Hospital, Anqing, Anhui Province, People’s Republic of China
| | - Jing Li
- Department of Geriatrics, The First Affiliated Hospital of the University of Science and Technology of China, Hefei, Anhui Province, People’s Republic of China
| | - Yu Liu
- Department of Geriatrics, Hefei Binhu Hospital, Hefei, Anhui Province, People’s Republic of China
| | - Xufeng Wu
- Department of Intensive Care Unit, Hefei Binhu Hospital, Hefei, Anhui Province, People’s Republic of China
| | - Xiaoyun Fan
- The Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, People’s Republic of China
- Key Laboratory of Geriatric Molecular Medicine of Anhui Province, Hefei, Anhui, 230022, People’s Republic of China
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Manyi-Loh CE, Lues R. A South African Perspective on the Microbiological and Chemical Quality of Meat: Plausible Public Health Implications. Microorganisms 2023; 11:2484. [PMID: 37894142 PMCID: PMC10608972 DOI: 10.3390/microorganisms11102484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/06/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Meat comprises proteins, fats, vitamins, and trace elements, essential nutrients for the growth and development of the body. The increased demand for meat necessitates the use of antibiotics in intensive farming to sustain and raise productivity. However, the high water activity, the neutral pH, and the high protein content of meat create a favourable milieu for the growth and the persistence of bacteria. Meat serves as a portal for the spread of foodborne diseases. This occurs because of contamination. This review presents information on animal farming in South Africa, the microbial and chemical contamination of meat, and the consequential effects on public health. In South Africa, the sales of meat can be operated both formally and informally. Meat becomes exposed to contamination with different categories of microbes, originating from varying sources during preparation, processing, packaging, storage, and serving to consumers. Apparently, meat harbours diverse pathogenic microorganisms and antibiotic residues alongside the occurrence of drug resistance in zoonotic pathogens, due to the improper use of antibiotics during farming. Different findings obtained across the country showed variations in prevalence of bacteria and multidrug-resistant bacteria studied, which could be explained by the differences in the manufacturer practices, handling processes from producers to consumers, and the success of the hygienic measures employed during production. Furthermore, variation in the socioeconomic and political factors and differences in bacterial strains, geographical area, time, climatic factors, etc. could be responsible for the discrepancy in the level of antibiotic resistance between the provinces. Bacteria identified in meat including Escherichia coli, Listeria monocytogenes, Staphylococcus aureus, Campylobacter spp., Salmonella spp., etc. are incriminated as pathogenic agents causing serious infections in human and their drug-resistant counterparts can cause prolonged infection plus long hospital stays, increased mortality and morbidity as well as huge socioeconomic burden and even death. Therefore, uncooked meat or improperly cooked meat consumed by the population serves as a risk to human health.
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Affiliation(s)
- Christy E. Manyi-Loh
- Centre of Applied Food Sustainability and Biotechnology, Central University of Technology, Bloemfontein 9301, South Africa;
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40
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Wu Z, Gou R, Sha L, Yu C, Meng L, Jin Z. Effects of Luteolin-7-O-Glucoside on Intestinal Microbiota Dysbiosis and Drug Resistance Transmission Caused by Raoultella ornithinolytica B1645-1: Modulating the Composition of Intestinal Microbiota and Promoting the Transfer of blaNDM-1 Gene from Genus Enterococcus to Lactobacillus in Mice. Microorganisms 2023; 11:2477. [PMID: 37894135 PMCID: PMC10609467 DOI: 10.3390/microorganisms11102477] [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: 08/28/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
Raoultella ornithinolytica is an Enterobacteriaceae bacterium that can infect both humans and animals, while luteolin-7-O-glucoside (IOG) is a flavonoid that has broad effects on the intestinal microbiota of healthy animals. However, current studies lack sufficient data on intestinal microbiota dysbiosis and drug resistance transmission caused by R. ornithinolytica and the possible role of IOG. In this study, BALB/c mice were infected with R. ornithinolytica carrying blaNDM-1 gene and treated with IOG (3 mg/kg·d and 6 mg/kg·d) to analyze the diversity of intestinal microbiota and the transfer of blaNDM-1 between bacteria. The findings indicated that R. ornithinolytica B1645-1 exhibited a significant ability to enhance the Firmicutes/Bacteroidota ratio and increase the relative abundance of Lactobacillus and Bacillus after 48 h, where as 6 mg/kg·d IOG had an opposite effect. Moreover, R. ornithinolytica B1645-1 facilitated the emergence of drug-resistant bacteria and promoted blaNDM-1 gene transfer in Enterococcus, Escherichia, Klebsiella, Acinetobacter, Bacillus, Brevibacterium, and Lactobacillus. Enterococcus was the predominant genus at 48 h. Surprisingly, 6 mg/kg·d IOG significantly inhibited the production of drug-resistant bacteria and promoted blaNDM-1 gene transfer from Enterococcus to Lactobacillus at 144 h. However, the role of Lactobacillus as a recipient for drug-resistant genes should be of more concern.
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Affiliation(s)
- Zhaomeng Wu
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China; (Z.W.); (R.G.); (L.S.); (C.Y.)
| | - Ronghui Gou
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China; (Z.W.); (R.G.); (L.S.); (C.Y.)
| | - Longhua Sha
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China; (Z.W.); (R.G.); (L.S.); (C.Y.)
| | - Chunfang Yu
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China; (Z.W.); (R.G.); (L.S.); (C.Y.)
| | - Lixue Meng
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China; (Z.W.); (R.G.); (L.S.); (C.Y.)
| | - Zhixiong Jin
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China; (Z.W.); (R.G.); (L.S.); (C.Y.)
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, School of Pharmaceutical Sciences, Hubei University of Medicine, Shiyan 442000, China
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Bunyat-Zada AR, Ross AC. Highlights of bioinformatic tools and methods for validating bioinformatics derived hypotheses for microbial natural products research. Curr Opin Chem Biol 2023; 76:102367. [PMID: 37453164 DOI: 10.1016/j.cbpa.2023.102367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/18/2023]
Abstract
Historically, bacterial natural products have served as an excellent source of drug leads, however, in recent decades the rate of discovery has slowed due to multiple challenges. Rapid advances in genome sequencing science in recent years have revealed the vast untapped encoded potential of bacteria to make natural products. To access these molecules, researchers can employ the ever-growing array of bioinformatic tools at their disposal and leverage newly developed experimental approaches to validate these bioinformatic-driven hypotheses. When used together effectively, bioinformatic and experimental tools enable researchers to deeply examine the full diversity of bacterial natural products. This review briefly outlines recent bioinformatic tools that can facilitate natural product research in bacteria including the use of CRISPR, co-occurrence network analysis, and combinatorial generation of microbial natural products to test bioinformatic hypotheses in the lab.
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Affiliation(s)
- Amir R Bunyat-Zada
- Department of Chemistry, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Avena C Ross
- Department of Chemistry, Queen's University, Kingston, ON, K7L 3N6, Canada.
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42
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Mao C, Li Q, Komijani M, Huang J, Li T. Metagenomic analysis reveals the dissemination mechanisms and risks of resistance genes in plateau lakes. iScience 2023; 26:107508. [PMID: 37664620 PMCID: PMC10470376 DOI: 10.1016/j.isci.2023.107508] [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: 04/19/2023] [Revised: 06/09/2023] [Accepted: 07/25/2023] [Indexed: 09/05/2023] Open
Abstract
Antibiotic resistance genes (ARGs) are emerging as environmental pollutants that can persist and disseminate in aquatic environments. Lakes, as important sources of freshwater, also serve as potential natural reservoirs of ARGs. In this study, we analyzed the distribution and potential risks of resistance genes in five typical freshwater lakes on the Yunnan-Guizhou Plateau. Our findings revealed that multidrug and MLS ARGs dominated in the studied lakes. Notably, while Lugu Lake exhibited higher abundance of ARGs, mobile genetic elements (MGEs), and metal resistance genes (MRGs), a greater resistome risk was observed in the eutrophic Xingyun Lake. The dissemination processes of ARGs and MRGs are primarily driven by microbial communities and the horizontal gene transfer via MGEs. Limnohabitans, Flavobacterium, and Acinetobacter were identified as key players in the dissemination of ARGs. Our study highlights the persistence of ARGs and provides valuable baseline data and risk assessment of ARGs in plateau freshwater lakes.
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Affiliation(s)
- Chengzhi Mao
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- Donghu Experimental Station of Lake Ecosystems, Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Qi Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Majid Komijani
- Department of Biology, Faculty of Science, Arak University, Arak, Iran
| | - Jie Huang
- Donghu Experimental Station of Lake Ecosystems, Key Laboratory of Aquatic Biodiversity and Conservation of Chinese Academy of Sciences, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
| | - Tao Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, China
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43
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Jia Y, Schroeder B, Pfeifer Y, Fröhlich C, Deng L, Arkona C, Kuropka B, Sticht J, Ataka K, Bergemann S, Wolber G, Nitsche C, Mielke M, Leiros HKS, Werner G, Rademann J. Kinetics, Thermodynamics, and Structural Effects of Quinoline-2-Carboxylates, Zinc-Binding Inhibitors of New Delhi Metallo-β-lactamase-1 Re-sensitizing Multidrug-Resistant Bacteria for Carbapenems. J Med Chem 2023; 66:11761-11791. [PMID: 37585683 DOI: 10.1021/acs.jmedchem.3c00171] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Carbapenem resistance mediated by metallo-β-lactamases (MBL) such as New Delhi metallo-β-lactamase-1 (NDM-1) has become a major factor threatening the efficacy of essential β-lactam antibiotics. Starting from hit fragment dipicolinic acid (DPA), 8-hydroxy- and 8-sulfonamido-quinoline-2-carboxylic acids were developed as inhibitors of NDM-1 with highly improved inhibitory activity and binding affinity. The most active compounds formed reversibly inactive ternary protein-inhibitor complexes with two zinc ions as proven by native protein mass spectrometry and bio-layer interferometry. Modification of the NDM-1 structure with remarkable entropic gain was shown by isothermal titration calorimetry and NMR spectroscopy of isotopically labeled protein. The best compounds were potent inhibitors of NDM-1 and other representative MBL with no or little inhibition of human zinc-binding enzymes. These inhibitors significantly reduced the minimum inhibitory concentrations (MIC) of meropenem for multidrug-resistant bacteria recombinantly expressing blaNDM-1 as well as for several multidrug-resistant clinical strains at concentrations non-toxic to human cells.
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Affiliation(s)
- Yuwen Jia
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Barbara Schroeder
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Yvonne Pfeifer
- FG13 Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, Burgstraße 37, Wernigerode 38855, Germany
| | - Christopher Fröhlich
- Department of Chemistry, Faculty of Science and Technology, UiT The Arctic University of Norway, Tromsø 9037, Norway
| | - Lihua Deng
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Christoph Arkona
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Benno Kuropka
- Core Facility BioSupraMol, Institute for Chemistry and Biochemistry, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Jana Sticht
- Core Facility BioSupraMol, Institute for Chemistry and Biochemistry, Freie Universität Berlin, Thielallee 63, Berlin 14195, Germany
| | - Kenichi Ataka
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin 14195, Germany
| | - Silke Bergemann
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Gerhard Wolber
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
| | - Christoph Nitsche
- Research School of Chemistry, Australian National University, Canberra 2601, Australian Capital Territory, Australia
| | - Martin Mielke
- Department of Infectious Diseases, Robert Koch Institute, Nordufer 20, Berlin 13353, Germany
| | - Hanna-Kirsti S Leiros
- Department of Chemistry, Faculty of Science and Technology, UiT The Arctic University of Norway, Tromsø 9037, Norway
| | - Guido Werner
- FG13 Nosocomial Pathogens and Antibiotic Resistances, Department of Infectious Diseases, Robert Koch Institute, Burgstraße 37, Wernigerode 38855, Germany
| | - Jörg Rademann
- Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, Berlin 14195, Germany
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Rangel K, Lechuga GC, Provance DW, Morel CM, De Simone SG. An Update on the Therapeutic Potential of Antimicrobial Peptides against Acinetobacter baumannii Infections. Pharmaceuticals (Basel) 2023; 16:1281. [PMID: 37765087 PMCID: PMC10537560 DOI: 10.3390/ph16091281] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/09/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
The rise in antibiotic-resistant strains of clinically important pathogens is a major threat to global health. The World Health Organization (WHO) has recognized the urgent need to develop alternative treatments to address the growing list of priority pathogens. Antimicrobial peptides (AMPs) rank among the suggested options with proven activity and high potential to be developed into effective drugs. Many AMPs are naturally produced by living organisms protecting the host against pathogens as a part of their innate immunity. Mechanisms associated with AMP actions include cell membrane disruption, cell wall weakening, protein synthesis inhibition, and interference in nucleic acid dynamics, inducing apoptosis and necrosis. Acinetobacter baumannii is a critical pathogen, as severe clinical implications have developed from isolates resistant to current antibiotic treatments and conventional control procedures, such as UV light, disinfectants, and drying. Here, we review the natural AMPs representing primary candidates for new anti-A. baumannii drugs in post-antibiotic-era and present computational tools to develop the next generation of AMPs with greater microbicidal activity and reduced toxicity.
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Affiliation(s)
- Karyne Rangel
- Center for Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation in Neglected Population Diseases (INCT-IDPN), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; (K.R.); (G.C.L.); (D.W.P.J.); (C.M.M.)
- Epidemiology and Molecular Systematics Laboratory (LEMS), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil
| | - Guilherme Curty Lechuga
- Center for Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation in Neglected Population Diseases (INCT-IDPN), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; (K.R.); (G.C.L.); (D.W.P.J.); (C.M.M.)
- Epidemiology and Molecular Systematics Laboratory (LEMS), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil
| | - David W. Provance
- Center for Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation in Neglected Population Diseases (INCT-IDPN), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; (K.R.); (G.C.L.); (D.W.P.J.); (C.M.M.)
- Epidemiology and Molecular Systematics Laboratory (LEMS), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil
| | - Carlos M. Morel
- Center for Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation in Neglected Population Diseases (INCT-IDPN), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; (K.R.); (G.C.L.); (D.W.P.J.); (C.M.M.)
| | - Salvatore G. De Simone
- Center for Technological Development in Health (CDTS), National Institute of Science and Technology for Innovation in Neglected Population Diseases (INCT-IDPN), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil; (K.R.); (G.C.L.); (D.W.P.J.); (C.M.M.)
- Epidemiology and Molecular Systematics Laboratory (LEMS), Oswaldo Cruz Institut, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil
- Program of Post-Graduation on Science and Biotechnology, Department of Molecular and Cellular Biology, Biology Institute, Federal Fluminense University, Niterói 22040-036, RJ, Brazil
- Program of Post-Graduation on Parasitic Biology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro 21040-900, RJ, Brazil
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45
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Rodrigues FF, Lino CI, Oliveira VLS, Zaidan I, Melo ISF, Braga AV, Costa SOAM, Morais MI, Barbosa BCM, da Costa YFG, Moreira NF, Alves MS, Braga AD, Carneiro FS, Carvalho AFS, Queiroz-Junior CM, Sousa LP, Amaral FA, Oliveira RB, Coelho MM, Machado RR. A clindamycin acetylated derivative with reduced antibacterial activity inhibits articular hyperalgesia and edema by attenuating neutrophil recruitment, NF-κB activation and tumor necrosis factor-α production. Int Immunopharmacol 2023; 122:110609. [PMID: 37429145 DOI: 10.1016/j.intimp.2023.110609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/22/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
We recently demonstrated that clindamycin exhibits activities in acute and chronic models of pain and inflammation. In the present study, we investigated the effects of clindamycin and a clindamycin acetylated derivative (CAD) in models of acute joint inflammation and in a microbiological assay. Joint inflammation was induced in mice by intraarticular (i.a.) injection of zymosan or lipopolysaccharide (LPS). Clindamycin or CAD were administered via the intraperitoneal route 1 h before zymosan or LPS. Paw withdrawal threshold, joint diameter, histological changes, neutrophil recruitment, tumor necrosis factor-α (TNF-α) production and phosphorylation of the IκBα and NF-κB/p65 were evaluated. In vitro assays were used to measure the antibacterial activity of clindamycin and CAD and also their effects on zymosan-induced TNF-α production by RAW264.7 macrophages. Clindamycin exhibited activity against Staphylococcus aureus and Salmonella Typhimurium ATCC® strains at much lower concentrations than CAD. Intraarticular injection of zymosan or LPS induced articular hyperalgesia, edema and neutrophil infiltration in the joints. Zymosan also induced histological changes, NF-κB activation and TNF-α production. Responses induced by zymosan and LPS were inhibited by clindamycin (200 and 400 mg/kg) or CAD (436 mg/kg). Both clindamycin and CAD inhibited in vitro TNF-α production by macrophages. In summary, we provided additional insights of the clindamycin immunomodulatory effects, whose mechanism was associated with NF-κB inhibition and reduced TNF-α production. Such effects were extended to a clindamycin derivative with reduced antibacterial activity, indicating that clindamycin derivatives should be investigated as candidates to drugs that could be useful in the management of inflammatory and painful conditions.
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Affiliation(s)
- Felipe F Rodrigues
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Cleudiomar I Lino
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Vívian L S Oliveira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Isabella Zaidan
- Laboratório de Sinalização na Inflamação, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais. Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Ivo S F Melo
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Alysson V Braga
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Sarah O A M Costa
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Marcela I Morais
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Bárbara C M Barbosa
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Ygor F G da Costa
- Laboratório de Bioatividade Celular e Molecular, Centro de Pesquisas Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n°, Juiz de Fora, MG, CEP 36036-900, Brasil
| | - Nicole F Moreira
- Laboratório de Bioatividade Celular e Molecular, Centro de Pesquisas Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n°, Juiz de Fora, MG, CEP 36036-900, Brasil
| | - Maria S Alves
- Laboratório de Bioatividade Celular e Molecular, Centro de Pesquisas Farmacêuticas, Faculdade de Farmácia, Universidade Federal de Juiz de Fora, Rua José Lourenço Kelmer s/n°, Juiz de Fora, MG, CEP 36036-900, Brasil
| | - Amanda D Braga
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Fernanda S Carneiro
- Laboratório de Sinalização na Inflamação, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais. Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Antônio F S Carvalho
- Laboratório de Sinalização na Inflamação, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais. Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Celso M Queiroz-Junior
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Lirlândia P Sousa
- Laboratório de Sinalização na Inflamação, Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Universidade Federal de Minas Gerais. Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Flávio A Amaral
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Renata B Oliveira
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Márcio M Coelho
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil
| | - Renes R Machado
- Departamento de Produtos Farmacêuticos, Faculdade de Farmácia, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Belo Horizonte, MG, CEP 31270-901, Brasil.
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Shelke YP, Bankar NJ, Bandre GR, Hawale DV, Dawande P. An Overview of Preventive Strategies and the Role of Various Organizations in Combating Antimicrobial Resistance. Cureus 2023; 15:e44666. [PMID: 37799257 PMCID: PMC10550263 DOI: 10.7759/cureus.44666] [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: 08/21/2023] [Accepted: 09/04/2023] [Indexed: 10/07/2023] Open
Abstract
The rise of antimicrobial resistance (AMR) is a major global public health threat due to excessive and inappropriate use of antibiotics and is responsible for prolonged illness, longer hospital stays, and economic burden to society. This article aims to review the factors, role of antimicrobial stewardship, preventive strategies, and role of various organizations in combating AMR. Three major factors of AMR are inappropriate and excessive utilization of antibiotics, nonadherence to infection control measures, and the emergence of pathogens that are resistant to multiple drugs. Antimicrobial stewardship initiatives play a vital role in promoting judicious and targeted utilization of antimicrobials, thereby safeguarding their efficacy and mitigating the emergence of resistance. Implementing such programs optimizes patient outcomes by ensuring that individuals receive the most suitable therapeutic interventions. International organizations have a vital role to play in addressing AMR by promoting the responsible use of antimicrobials, developing new drugs, and improving surveillance systems. As AMR's impact grows, it is critical to take a collaborative and interdisciplinary approach to mitigate its consequences effectively.
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Affiliation(s)
- Yogendra P Shelke
- Microbiology, Bhaktshreshtha Kamalakarpant Laxmanrao Walawalkar Rural Medical College, Sawarda, IND
| | - Nandkishor J Bankar
- Microbiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Gulshan R Bandre
- Microbiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Dattu V Hawale
- Biochemistry, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
| | - Pratibha Dawande
- Pathology, Datta Meghe Medical College, Datta Meghe Institute of Higher Education and Research, Nagpur, IND
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47
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Singh N, Mishra S, Mondal A, Sharma D, Jain N, Aseri GK. Potential of Desert Medicinal Plants for Combating Resistant Biofilms in Urinary Tract Infections. Appl Biochem Biotechnol 2023; 195:5568-5582. [PMID: 35666381 DOI: 10.1007/s12010-022-03950-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 05/02/2022] [Indexed: 11/28/2022]
Abstract
Urinary tract infections (UTIs) are among the most prevalent bacterial infections worldwide, with 11% of the global population getting infected every year. These infections are largely attributed to quorum sensing (QS)-dependent ability of pathogens to form biofilms in the urinary tract. Antimicrobial resistance is increasing, and the use of antimicrobial medicines in the future is yet uncertain. The desert medicinal plants have great potential to treat several diseases as per the available ethnobotanical database. Some of these plants have been used in folklore medicines to treat urinary tract infections also. There are many bioactive compounds derived from these desert medicinal plants that have been documented to possess antimicrobial as well as antibiofilm activity against uropathogens. The minimum biofilm inhibitory concentration (MBIC) of these plant extracts have been reported in the range of 31.5-250 μg/mL. The rising prevalence of drug-resistant diseases necessitates standardised modern analytical technologies to detect and isolate novel bioactive compounds from medicinal plants. This review seeks to combine the studies of desert plants with antimicrobial and anti-quorum sensing properties, supporting their sustainable use in treatment of urinary tract infections.
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Affiliation(s)
- Neha Singh
- Amity Institute of Microbial Technology, Amity University Rajasthan, Jaipur, 303002, India
| | - Shivam Mishra
- Kusuma School of Biological Sciences, India Institute of Technology Delhi, New Delhi, 110016, India
| | - Asmita Mondal
- Amity Institute of Microbial Technology, Amity University Rajasthan, Jaipur, 303002, India
| | - Deepansh Sharma
- Amity Institute of Microbial Technology, Amity University Rajasthan, Jaipur, 303002, India
| | - Neelam Jain
- Amity Institute of Biotechnology, Amity University Rajasthan, Jaipur, 303002, India.
| | - G K Aseri
- Amity Institute of Microbial Technology, Amity University Rajasthan, Jaipur, 303002, India.
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Fontana-Escartín A, Hauadi KE, Lanzalaco S, Pérez-Madrigal MM, Armelin E, Turon P, Alemán C. Smart Design of Sensor-Coated Surgical Sutures for Bacterial Infection Monitoring. Macromol Biosci 2023; 23:e2300024. [PMID: 37119469 DOI: 10.1002/mabi.202300024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/21/2023] [Indexed: 05/01/2023]
Abstract
Virtually, all implantable medical devices are susceptible to infection. As the main healthcare issue concerning implantable devices is the elevated risk of infection, different strategies based on the coating or functionalization of biomedical devices with antiseptic agents or antibiotics are proposed. In this work, an alternative approach is presented, which consists of the functionalization of implantable medical devices with sensors capable of detecting infection at very early stages through continuous monitoring of the bacteria metabolism. This approach, which is implemented in surgical sutures as a representative case of implantable devices susceptible to bacteria colonization, is expected to minimize the risk of worsening the patient's clinical condition. More specifically, non-absorbable polypropylene/polyethylene (PP/PE) surgical sutures are functionalized with conducting polymers using a combination of low-pressure oxygen plasma, chemical oxidative polymerization, and anodic polymerization, to detect metabolites coming from bacteria respiration. Functionalized suture yarns are used for real-time monitoring of bacteria growth, demonstrating the potential of this strategy to fight against infections.
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Affiliation(s)
- Adrián Fontana-Escartín
- Departament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany, 10-14, Barcelona, 08019, Spain
| | - Karima El Hauadi
- Departament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany, 10-14, Barcelona, 08019, Spain
| | - Sonia Lanzalaco
- Departament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany, 10-14, Barcelona, 08019, Spain
| | - Maria M Pérez-Madrigal
- Departament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany, 10-14, Barcelona, 08019, Spain
| | - Elaine Armelin
- Departament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany, 10-14, Barcelona, 08019, Spain
| | - Pau Turon
- B. Braun Surgical, S.A.U. Carretera de Terrasa 121, Rubí, 08191, Spain
| | - Carlos Alemán
- Departament d'Enginyeria Química and Barcelona Research Center for Multiscale Science and Engineering, EEBE, Universitat Politècnica de Catalunya (UPC), C/ Eduard Maristany, 10-14, Barcelona, 08019, Spain
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 10-12, Barcelona, 08028, Spain
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Li M, Gao J, Wang L, Liu J, Fu C, Yang X, Zhang S, Li X, Luo S, Yang C. Basic research and clinical exploration of cold atmospheric plasma for skin wounds. Bioeng Transl Med 2023; 8:e10550. [PMID: 37693064 PMCID: PMC10487309 DOI: 10.1002/btm2.10550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 04/18/2023] [Accepted: 04/30/2023] [Indexed: 09/12/2023] Open
Abstract
Skin wounds, such as burns, diabetic foot ulcers, pressure sores, and wounds formed after laser or surgical treatment, comprise a very high proportion of dermatological disorders. Wounds are treated in a variety of ways; however, some wounds are greatly resistant, resulting in delayed healing and an urgent need to introduce new alternatives. Our previous studies have shown that cold atmospheric plasma (CAP) has antibacterial activity and promotes cell proliferation, differentiation, and migration in vitro. To further advance the role of CAP in wound healing, we evaluated the safety and efficacy of CAP in vitro by irradiation of common refractory bacteria on the skin, irradiation of normal skin of rats and observing reactions, treatment of scald wounds in rats, and treating clinically common acute wounds. Our findings revealed that CAP can eliminate refractory skin bacteria in vitro; CAP positively affected wound healing in a rat scalding wound model; and direct CAP irradiation of low intensity and short duration did not lead to skin erythema or edema. CAP promises to be a new, economical, and safe means of wound treatment.
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Affiliation(s)
- Miaomiao Li
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Jing Gao
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
- Anhui Provincial Institute of Translational MedicineHefeiAnhuiChina
| | - Liyun Wang
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Jia Liu
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Chuyu Fu
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Xingyu Yang
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
| | - Shengquan Zhang
- Anhui Provincial Institute of Translational MedicineHefeiAnhuiChina
- Department of Biochemistry and Molecular Biology, School of Basic Medical SciencesAnhui Medical UniversityHefeiAnhuiChina
| | - Xinwei Li
- Anhui Academy of Medical SciencesHefeiAnhuiChina
| | | | - Chunjun Yang
- Department of Dermatology and Venereologythe Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhuiChina
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Xhafa S, Olivieri L, Di Nicola C, Pettinari R, Pettinari C, Tombesi A, Marchetti F. Copper and Zinc Metal-Organic Frameworks with Bipyrazole Linkers Display Strong Antibacterial Activity against Both Gram+ and Gram- Bacterial Strains. Molecules 2023; 28:6160. [PMID: 37630412 PMCID: PMC10459509 DOI: 10.3390/molecules28166160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023] Open
Abstract
Here, we report a new synthetic protocol based on microwave-assisted synthesis (MAS) for the preparation of higher yields of zinc and copper in MOFs based on different bis(pyrazolyl)-tagged ligands ([M(BPZ)]n where M = Zn(II), Cu(II), H2BPZ = 4,4'-bipyrazole, [M(BPZ-NH2)]n where M = Zn(II), Cu(II); H2BPZ-NH2 = 3-amino-4,4'-bipyrazole, and [Mx(Me4BPZPh)] where M = Zn(II), x = 1; Cu(II), x = 2; H2Me4BPZPh = bis-4'-(3',5'-dimethyl)-pyrazolylbenzene) and, for the first time, a detailed study of their antibacterial activity, tested against Gram-negative (E. coli) and Gram-positive (S. aureus) bacteria, as representative agents of infections. The results show that all MOFs exert a broad-spectrum activity and strong efficiency in bacterial growth inhibition, with a mechanism of action based on the surface contact of MOF particles with bacterial cells through the so-called "chelation effect" and reactive oxygen species (ROS) generation, without a significant release of Zn(II) and Cu(II) ions. In addition, morphological changes were elucidated by using a scanning electron microscope (SEM) and bacterial cell damage was further confirmed by a confocal laser scanning microscopy (CLSM) test.
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Affiliation(s)
- Sonila Xhafa
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
| | - Laura Olivieri
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
| | - Corrado Di Nicola
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
| | - Riccardo Pettinari
- ChIP Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy (C.P.); (A.T.)
| | - Claudio Pettinari
- ChIP Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy (C.P.); (A.T.)
| | - Alessia Tombesi
- ChIP Research Center, School of Pharmacy, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy (C.P.); (A.T.)
| | - Fabio Marchetti
- ChIP Research Center, School of Science and Technology, University of Camerino, Via Madonna delle Carceri, 62032 Camerino, MC, Italy; (S.X.); (L.O.); (C.D.N.)
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