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Zhao Z, Wu Y, Geng X, Yuan C, Fu Y, Yang G. Efficacy of fidaxomicin versus vancomycin in the treatment of Clostridium difficile infection: A systematic meta-analysis. Medicine (Baltimore) 2024; 103:e39213. [PMID: 39121324 PMCID: PMC11315571 DOI: 10.1097/md.0000000000039213] [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: 02/13/2024] [Accepted: 07/17/2024] [Indexed: 08/11/2024] Open
Abstract
PURPOSE To compare the efficacy, recurrence rate, adverse event rate and mortality of fidaxomicin compared with vancomycin in treating different types of Clostridium difficile infection (CDI). METHODS A systematic search was conducted on PubMed, Embase, Web of Science, Cochrane Library and clinical trial registration databases for research on fidaxomicin versus vancomycin in the treatment of CDI and the retrieval period extended from the establishment of the database to July 22, 2022. A total of 15 studies were included, including 8 RCTs and 7 retrospective cohort studies. RESULTS Results showed that there was no significant difference in the overall efficacy of the treatment between fidaxomicin and vancomycin, and results in the subgroups of CDI hypervirulent strains and recurrent CDI were obtained, but vancomycin was more effective than fidaxomicin in the treatment of severe CDI (RR = 0.94, 95% CI: 0.90-0.98, P < .01). Results showed that fidaxomicin is superior to vancomycin in terms of 40-day recurrence rate (RR = 0.52, 95% CI: 0.38-0.70, P < .01), 60-day recurrence rate (RR = 0.38, 95% CI: 0.21-0.69, P < .01) and 90-day recurrence rate (RR = 0.62, 95% CI: 0.50-0.77, P < .01). For the recurrence rate of the treatment in CDI hypervirulent strains, severe CDI and recurrent CDI, there was no significant difference between the 2 groups. In addition, there was no significant difference in the incidence of clinical adverse reactions, and same outcomes appeared in all-cause mortality at 40-day, severe CDI and recurrent CDI, but fidaxomicin was superior to vancomycin in all-cause mortality over 60-day (RR = 0.57, 95% CI: 0.34-0.96, P = .03). CONCLUSION There were no significant differences between fidaxomicin and vancomycin in the treatment of CDI in therapeutic effectiveness and adverse reactions, while fidaxomicin was superior to vancomycin in terms of recurrence rate and long-term mortality, and vancomycin is more effective in treating severe CDI.
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Affiliation(s)
- Zihan Zhao
- Department of Gastroenterology, Aerospace Center Hospital, Peking University, Beijing, China
| | - Yarui Wu
- Department of Gastroenterology, Aerospace Center Hospital, Peking University, Beijing, China
| | - Xuhua Geng
- Department of Gastroenterology, Aerospace Center Hospital, Peking University, Beijing, China
| | - Congrui Yuan
- Department of Gastroenterology, Aerospace Center Hospital, Peking University, Beijing, China
| | - Yi Fu
- Department of Gastroenterology, Aerospace Center Hospital, Peking University, Beijing, China
| | - Guibin Yang
- Department of Gastroenterology, Aerospace Center Hospital, Peking University, Beijing, China
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Zhang K, Fang X, Zhang Y, Chao M. A retrospective study of uropathogen and its antibiotic resistance among children with urinary tract infection from a single center in China. Heliyon 2024; 10:e31902. [PMID: 38845897 PMCID: PMC11154635 DOI: 10.1016/j.heliyon.2024.e31902] [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: 01/08/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/09/2024] Open
Abstract
Urinary tract infection (UTI) is a well-known bacterial infection posing serious health problem in children. A retrospective study was conducted to explore the uropathogen and its antibiotic resistance in children with UTI. Data of urine culture and antimicrobial susceptibility test was collected. Consequently, 840 children were included. The overall culture-positive UTI was 458 (54.52 %) with Escherichia coli 166 (36.24 %), followed by Enterococcus faecalis 59 (12.88 %), Enterococcus faecium 70 (15.28 %) and others. They were highly resistant to the most commonly used antibiotics. In 694 children with complicated UTI, there were 8 children with fungal infection. Multiple drug resistance (MDR) was recorded in 315 (80.98 %). The overall proportion of Extended Spectrum β-Lactamase (ESβL) production was 25 (6.43 %). In 146 children with simple UTI, MDR were also detected in 47 (77.05 %). There were 6 (9.84 %) positive for ESβL production. Our study found that complicated UTI was relatively common. Escherichia coli was the most prevalent isolate, followed by Enterococcus faecium and Enterococcus faecalis. These organisms were highly resistant to the most commonly used antibiotics. Relatively high prevalence of MDR and low ESβL-producing organisms were observed.
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Affiliation(s)
| | | | - Yin Zhang
- Department of Urology, Anhui Provincial Children's Hospital/Children's Hospital of Fudan University (Affiliated Anhui Branch), Hefei, China
| | - Min Chao
- Department of Urology, Anhui Provincial Children's Hospital/Children's Hospital of Fudan University (Affiliated Anhui Branch), Hefei, China
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3
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Abu-Aqil G, Suleiman M, Lapidot I, Huleihel M, Salman A. Infrared spectroscopy-based machine learning algorithms for rapid detection of Klebsiella pneumoniae isolated directly from patients' urine and determining its susceptibility to antibiotics. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 314:124141. [PMID: 38513317 DOI: 10.1016/j.saa.2024.124141] [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: 11/14/2023] [Revised: 02/15/2024] [Accepted: 03/08/2024] [Indexed: 03/23/2024]
Abstract
Among the most prevalent and detrimental bacteria causing urinary tract infections (UTIs) is Klebsiella (K.) pneumoniae. A rapid determination of its antibiotic susceptibility can enhance patient treatment and mitigate the spread of resistant strains. In this study, we assessed the viability of using infrared spectroscopy-based machine learning as a rapid and precise approach for detecting K. pneumoniae bacteria and determining its susceptibility to various antibiotics directly from a patient's urine sample. In this study, 2333 bacterial samples, including 636 K. pneumoniae were investigated using infrared micro-spectroscopy. The obtained spectra (27996spectra) were analyzed with XGBoost classifier, achieving a success rate exceeding 95 % for identifying K. pneumoniae. Moreover, this method allows for the simultaneous determination of K. pneumoniae susceptibility to various antibiotics with sensitivities ranging between 74 % and 81 % within approximately 40 min after receiving the patient's urine sample.
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Affiliation(s)
- George Abu-Aqil
- Department of Microbiology, Immunology, and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Manal Suleiman
- Department of Microbiology, Immunology, and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Itshak Lapidot
- Department of Electrical and Electronics Engineering, ACLP-Afeka Center for Language Processing, Afeka Tel-Aviv Academic College of Engineering, Tel-Aviv 69107, Israel
| | - Mahmoud Huleihel
- Department of Microbiology, Immunology, and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | - Ahmad Salman
- Department of Physics, SCE - Shamoon College of Engineering, Beer-Sheva 84100, Israel.
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4
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Pei Y, Shum MHH, Liao Y, Leung VW, Gong YN, Smith DK, Yin X, Guan Y, Luo R, Zhang T, Lam TTY. ARGNet: using deep neural networks for robust identification and classification of antibiotic resistance genes from sequences. MICROBIOME 2024; 12:84. [PMID: 38725076 PMCID: PMC11080312 DOI: 10.1186/s40168-024-01805-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 04/02/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Emergence of antibiotic resistance in bacteria is an important threat to global health. Antibiotic resistance genes (ARGs) are some of the key components to define bacterial resistance and their spread in different environments. Identification of ARGs, particularly from high-throughput sequencing data of the specimens, is the state-of-the-art method for comprehensively monitoring their spread and evolution. Current computational methods to identify ARGs mainly rely on alignment-based sequence similarities with known ARGs. Such approaches are limited by choice of reference databases and may potentially miss novel ARGs. The similarity thresholds are usually simple and could not accommodate variations across different gene families and regions. It is also difficult to scale up when sequence data are increasing. RESULTS In this study, we developed ARGNet, a deep neural network that incorporates an unsupervised learning autoencoder model to identify ARGs and a multiclass classification convolutional neural network to classify ARGs that do not depend on sequence alignment. This approach enables a more efficient discovery of both known and novel ARGs. ARGNet accepts both amino acid and nucleotide sequences of variable lengths, from partial (30-50 aa; 100-150 nt) sequences to full-length protein or genes, allowing its application in both target sequencing and metagenomic sequencing. Our performance evaluation showed that ARGNet outperformed other deep learning models including DeepARG and HMD-ARG in most of the application scenarios especially quasi-negative test and the analysis of prediction consistency with phylogenetic tree. ARGNet has a reduced inference runtime by up to 57% relative to DeepARG. CONCLUSIONS ARGNet is flexible, efficient, and accurate at predicting a broad range of ARGs from the sequencing data. ARGNet is freely available at https://github.com/id-bioinfo/ARGNet , with an online service provided at https://ARGNet.hku.hk . Video Abstract.
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Grants
- T21-705/20-N Hong Kong Research Grants Council's Theme-based Research Scheme
- T21-705/20-N Hong Kong Research Grants Council's Theme-based Research Scheme
- T21-705/20-N Hong Kong Research Grants Council's Theme-based Research Scheme
- T21-705/20-N Hong Kong Research Grants Council's Theme-based Research Scheme
- T21-705/20-N Hong Kong Research Grants Council's Theme-based Research Scheme
- T21-705/20-N Hong Kong Research Grants Council's Theme-based Research Scheme
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 2019B121205009, HZQB-KCZYZ-2021014, 200109155890863, 190830095586328 and 190824215544727 Innovation and Technology Commission's InnoHK funding (D24H), and the Government of Guangdong Province
- 31922087 National Natural Science Foundation of China's Excellent Young Scientists Fund (Hong Kong and Macau)
- Hong Kong Research Grants Council’s Theme-based Research Scheme
- Innovation and Technology Commission’s InnoHK funding (D24H), and the Government of Guangdong Province
- National Natural Science Foundation of China’s Excellent Young Scientists Fund (Hong Kong and Macau)
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Affiliation(s)
- Yao Pei
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- Joint Institute of Virology (Shantou University and The University of Hong Kong), Guangdong-Hongkong Joint Laboratory of Emerging Infectious Diseases, Shantou University, Shantou, Guangdong, 515063, China
- Laboratory of Data Discovery for Health (D²4H), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China
- Advanced Pathogen Research Institute, Futian District, Shenzhen City, Guangdong, 518045, China
| | - Marcus Ho-Hin Shum
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- Joint Institute of Virology (Shantou University and The University of Hong Kong), Guangdong-Hongkong Joint Laboratory of Emerging Infectious Diseases, Shantou University, Shantou, Guangdong, 515063, China
- Laboratory of Data Discovery for Health (D²4H), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China
- Advanced Pathogen Research Institute, Futian District, Shenzhen City, Guangdong, 518045, China
| | - Yunshi Liao
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- Joint Institute of Virology (Shantou University and The University of Hong Kong), Guangdong-Hongkong Joint Laboratory of Emerging Infectious Diseases, Shantou University, Shantou, Guangdong, 515063, China
- Advanced Pathogen Research Institute, Futian District, Shenzhen City, Guangdong, 518045, China
- Centre for Immunology & Infection (C2i), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China
| | - Vivian W Leung
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- Joint Institute of Virology (Shantou University and The University of Hong Kong), Guangdong-Hongkong Joint Laboratory of Emerging Infectious Diseases, Shantou University, Shantou, Guangdong, 515063, China
- Laboratory of Data Discovery for Health (D²4H), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China
- Advanced Pathogen Research Institute, Futian District, Shenzhen City, Guangdong, 518045, China
| | - Yu-Nong Gong
- Division of Biotechnology, Research Center of Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- International Master Degree Program for Molecular Medicine in Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan, Taiwan
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - David K Smith
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- Laboratory of Data Discovery for Health (D²4H), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China
| | - Xiaole Yin
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Yi Guan
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
- Joint Institute of Virology (Shantou University and The University of Hong Kong), Guangdong-Hongkong Joint Laboratory of Emerging Infectious Diseases, Shantou University, Shantou, Guangdong, 515063, China
- Laboratory of Data Discovery for Health (D²4H), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China
- Advanced Pathogen Research Institute, Futian District, Shenzhen City, Guangdong, 518045, China
| | - Ruibang Luo
- Department of Computer Science, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Tong Zhang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Tommy Tsan-Yuk Lam
- State Key Laboratory of Emerging Infectious Diseases, School of Public Health, The University of Hong Kong, Pokfulam, Hong Kong SAR, China.
- Joint Institute of Virology (Shantou University and The University of Hong Kong), Guangdong-Hongkong Joint Laboratory of Emerging Infectious Diseases, Shantou University, Shantou, Guangdong, 515063, China.
- Laboratory of Data Discovery for Health (D²4H), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China.
- Advanced Pathogen Research Institute, Futian District, Shenzhen City, Guangdong, 518045, China.
- Centre for Immunology & Infection (C2i), Hong Kong Science Park, Pak Shek Kok, Hong Kong SAR, China.
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5
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Ma C, Liu B, Du L, Liu W, Zhu Y, Chen T, Wang Z, Chen H, Pang Y. Green Preparation and Antibacterial Activity Evaluation of AgNPs- Blumea balsamifera Oil Nanoemulsion. Molecules 2024; 29:2009. [PMID: 38731501 PMCID: PMC11085303 DOI: 10.3390/molecules29092009] [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: 02/23/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Bacterial infection is a thorny problem, and it is of great significance to developing green and efficient biological antibacterial agents that can replace antibiotics. This study aimed to rapidly prepare a new type of green antibacterial nanoemulsion containing silver nanoparticles in one step by using Blumea balsamifera oil (BBO) as an oil phase and tea saponin (TS) as a natural emulsifier and reducing agent. The optimum preparation conditions of the AgNPs@BBO-TS NE were determined, as well as its physicochemical properties and antibacterial activity in vitro being investigated. The results showed that the average particle size of the AgNPs@BBO-TS NE was 249.47 ± 6.23 nm, the PDI was 0.239 ± 0.003, and the zeta potential was -35.82 ± 4.26 mV. The produced AgNPs@BBO-TS NE showed good stability after centrifugation and 30-day storage. Moreover, the AgNPs@BBO-TS NE had an excellent antimicrobial effect on Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. These results demonstrated that the AgNPs@BBO-TS NE produced in this study can be used as an efficient and green antibacterial agent in the biomedical field.
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Affiliation(s)
- Chunfang Ma
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Bingnan Liu
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Lingfeng Du
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Wei Liu
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Yue Zhu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Nano-Drug Technology Research Center of Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Teng Chen
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Nano-Drug Technology Research Center of Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Zuhua Wang
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Nano-Drug Technology Research Center of Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Hongpeng Chen
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
| | - Yuxin Pang
- College of Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China; (C.M.); (B.L.); (L.D.); (W.L.)
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Meidicine, Guiyang 550025, China; (T.C.); (Z.W.)
- Yunfu Traditional Chinese Medicine Resources and Germplasm Resources Database Management Center, Yunfu 527325, China
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Taborda JCM, Guzmán JCM, Higuita-Gutiérrez LF. Understanding antibiotic knowledge, attitudes, and practices: a cross-sectional study in physicians from a Colombian region, 2023. BMC MEDICAL EDUCATION 2024; 24:380. [PMID: 38589913 PMCID: PMC11000393 DOI: 10.1186/s12909-024-05354-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/27/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUND Antibiotic resistance has been identified as a global health threat. Knowledge, attitudes, and inappropriate prescription practices of antibiotics by physicians play a crucial role in this problem. In Colombia, research addressing this issue is scarce. METHODS A cross-sectional study involving 258 physicians was conducted. A scale with questions on sociodemographic aspects, level of education, satisfaction with antibiotic education received, and knowledge, attitudes, and practices was administered. The scale was designed for each item to be analyzed individually or as a total score ranging from 0 to 100 (0 being the lowest and 100 the highest). RESULTS 31.5% of physicians rated the education received on antibiotics as fair to poor. The knowledge score was 80.1 (IQR 70.5-87.5); however, 25.2% agreed to some extent that amoxicillin is useful in treating most respiratory infections, and 15% agreed that antibiotics are effective in treating upper respiratory infections. Attitudes scored 80.2 (IQR 75.0-86.5), with 99% stating that bacterial resistance is a public health problem in Colombia, but only 56.9% considering it a problem affecting their daily practice. Practices scored 75.5 (IQR 68.8-81.2), and 71.7% affirmed that if they refuse to prescribe antibiotics to a patient who does not need them, the patient can easily obtain them from another physician. General practitioners were found to have lower scores in all three indices evaluated. CONCLUSION The study reveals enduring misconceptions and concerning practices in antibiotic prescription, particularly among general practitioners. Enhancing knowledge necessitates the implementation of continuous medical education programs that focus on updated antibiotic guidelines, and resistance patterns. Fostering positive attitudes requires a culture of trust and collaboration among healthcare professionals. Practical enhancements can be realized through the establishment of evidence-based prescribing guidelines and the integration of regular feedback mechanisms. Moreover, advocating for the inclusion of antimicrobial stewardship principles in medical curricula is crucial, emphasizing the significance of responsible antibiotic use early in medical education.
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Affiliation(s)
| | | | - Luis Felipe Higuita-Gutiérrez
- Facultad de medicina, Universidad Cooperativa de Colombia, Medellín, Colombia.
- Escuela de microbiología, Universidad de Antioquia, Medellín, Colombia.
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Adolf J, David Luo T, Gehrke T, Citak M. The top ten benefits of one-stage septic exchange in the management of periprosthetic joint infections. Arch Orthop Trauma Surg 2024:10.1007/s00402-024-05217-5. [PMID: 38393443 DOI: 10.1007/s00402-024-05217-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 01/29/2024] [Indexed: 02/25/2024]
Affiliation(s)
- Jakob Adolf
- Helios ENDO-Klinik, Holstenstraße 2, 22767, Hamburg, Germany
| | - T David Luo
- Helios ENDO-Klinik, Holstenstraße 2, 22767, Hamburg, Germany
- Orthopaedics Northeast, 5050 N Clinton St, Fort Wayne, IN, 46825, USA
| | - Thorsten Gehrke
- Helios ENDO-Klinik, Holstenstraße 2, 22767, Hamburg, Germany
| | - Mustafa Citak
- Helios ENDO-Klinik, Holstenstraße 2, 22767, Hamburg, Germany.
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8
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González-Villoria AM, García Quiroz AD, Osorio Guzmán EU, Suarez-Herrera JC, Abeldaño Zuñiga RA. Knowledge, Attitudes, and Practices of Parents in the Use of Antibiotics: A Case Study in a Mexican Indigenous Community. Healthcare (Basel) 2024; 12:294. [PMID: 38338179 PMCID: PMC10855187 DOI: 10.3390/healthcare12030294] [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: 12/04/2023] [Revised: 12/30/2023] [Accepted: 01/10/2024] [Indexed: 02/12/2024] Open
Abstract
The rise and spread of antibiotic-resistant bacteria have become a global health problem. At the community level, bacterial resistance has been linked to antibiotic misuse practices. These practices are related to social factors such as education level, poverty, ethnicity, and use of traditional medicine. Through a survey, this study aims to analyse the knowledge, attitudes, and practices (KAP) of antimicrobial use, in an indigenous community in the south of Oaxaca, Mexico. It was observed that the population had a low socioeconomic profile, poor access to healthcare services, low academic level, little knowledge of antibiotics, the use of traditional medicine, and proper attitudes and practices regarding antibiotics use. Therefore, social factors are related to bacterial resistance only if they make the population prone to the use of antimicrobials. Lack of medical access and cultural factors drives this population to use ancestral alternatives such traditional medicine to treat conditions that in other contexts could be treated with antibiotics. This is an example of how the population can reduce the consumption of antimicrobials in infections if they have a reliable alternative that improves their symptoms.
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Affiliation(s)
| | | | | | - José Carlos Suarez-Herrera
- UNITWIN/UNESCO IPD-SILOS, University of Las Palmas de Gran Canaria, 35001 Las Palmas de Gran Canaria, Spain;
| | - Roberto Ariel Abeldaño Zuñiga
- Postgraduate Department, Universidad de la Sierra Sur, Oaxaca 70800, Mexico; (A.M.G.-V.)
- Centre for Social Data Science, Faculty of Social Sciences, University of Helsinki, 00100 Helsinki, Finland
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9
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Maroto-Tello A, Ayllón T, Aguinaga-Casañas MA, Ariza JJ, Penelo S, Baños A, Ortiz-Díez G. In Vitro Activity of Allium cepa Organosulfur Derivatives against Canine Multidrug-Resistant Strains of Staphylococcus spp. and Enterobacteriaceae. Vet Sci 2024; 11:26. [PMID: 38250932 PMCID: PMC10820550 DOI: 10.3390/vetsci11010026] [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: 10/27/2023] [Revised: 12/06/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND The increase of multi-resistant bacteria, especially Staphylococcus spp. and Enterobacteriaceae, constitutes a challenge in veterinary medicine. The rapid growth of resistance is outpacing antibiotic discovery. Innovative strategies are needed, including the use of natural products like Allium species (Allium sativum L. and Allium cepa L.), which have been used empirically for centuries to treat infectious diseases in humans and farm and aquaculture animals due to their antibacterial properties. METHODS This study aimed to evaluate the in vitro activity of two Allium-derived compounds, propyl propane thiosulfinate (PTS) and propyl propane thiosulfonate (PTSO), against multi-resistant Staphylococcus spp. (n = 30) and Enterobacteriaceae (n = 26) isolated from dogs referred to a veterinary teaching hospital in Madrid. RESULTS AND DISCUSSION The results indicated the in vitro efficacy of PTSO/PTS against the tested bacterial strains, and 56.7% of Staphylococcus pseudintermedius and 53.8% of Enterobacteriaceae showed sensitivity to PTS and PTSO compared with classic antibiotics. In addition, 50% of S. pseudintermedius strains resistant to erythromycin, ibofloxacin, difloxacin and orbifloxacin and 50% of Enterobacteriaceae strains resistant to tetracycline and doxycycline were sensitive to PTS and PTSO. Although studies are needed to verify their efficacy in vivo, the combined use of PTS and PTSO exhibits promise in enhancing bacterial sensitivity against S. pseudintermedius and Enterobacteriaceae infections, providing a first insight into the potential of both compounds in veterinary practice.
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Affiliation(s)
- Alba Maroto-Tello
- Departamento de Microbiología, DMC Research Center, 18620 Granada, Spain; (A.M.-T.); (M.A.A.-C.); (A.B.)
| | - Tania Ayllón
- Facultad de Ciencias de la Salud, Universidad Alfonso X el Sabio, 28691 Madrid, Spain
- Departamento de Genética, Fisiología y Microbiología, Facultad de Ciencias Biológicas, Universidad Complutense, 28040 Madrid, Spain
| | | | - Juan José Ariza
- Departamento de Microbiología, Campus Fuente Nueva, Universidad de Granada, 18001 Granada, Spain;
| | - Silvia Penelo
- Servicio de Urgencias, Hospitalización y UCI, Hospital Clínico Veterinario Complutense, Universidad Complutense, 28040 Madrid, Spain
| | - Alberto Baños
- Departamento de Microbiología, DMC Research Center, 18620 Granada, Spain; (A.M.-T.); (M.A.A.-C.); (A.B.)
- Departamento de Microbiología, Campus Fuente Nueva, Universidad de Granada, 18001 Granada, Spain;
| | - Gustavo Ortiz-Díez
- Departamento de Medicina y Cirugía, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain;
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10
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Duan S, Su H, Xu W, Hu X, Xu Y, Cao Y, Wen G. Concentrations, distribution, and key influencing factors of antibiotic resistance genes and bacterial community in water and reared fish tissues in a typical tilapia farm in South China. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2023; 59:21-35. [PMID: 38009809 DOI: 10.1080/03601234.2023.2284617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Although previous studies have investigated the occurrence of antibiotic resistance genes (ARGs) in aquaculture, few have monitored the concentrations and propagation of ARGs in biological tissues or investigated the key factors influencing their spread in aquaculture. This study investigated the concentration, propagation, and distribution of ARGs and bacterial communities in water sources, pond water, and tilapia tissues, and their key influencing factors, in a typical tilapia farm. ErmF, sul1, and sul2 were the dominant ARGs with high concentrations. The total concentrations of ARGs (TCAs) in tilapia tissues decreased in the following order: stomach > scales > intestine > gills (P < 0.05). Redundancy analysis and multiple linear regression revealed that suspended solids (SS) and chemical oxygen demand (COD) were positively correlated with the dominant ARGs ermF sul2, and the TCAs (P < 0.05); additionally, Chloroflexi and Bacteroidetes in tilapia aquaculture water were positively correlated with the dominant ARGs ermF and sul2, as well as the TCAs (P < 0.05). This study suggests that SS and COD were the key factors driving the distribution and spread of ARGs in tilapia aquaculture water. Additionally, Chloroflexi and Bacteroidetes were the key bacterial flora affecting the propagation of ARGs in tilapia aquaculture systems.
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Affiliation(s)
- Sijia Duan
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
| | - Haochang Su
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Wujie Xu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Xiaojuan Hu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Yu Xu
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Yucheng Cao
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Guoliang Wen
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, China
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Beijing, China
- South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, China
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11
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Abu-Aqil G, Lapidot I, Salman A, Huleihel M. Quick Detection of Proteus and Pseudomonas in Patients' Urine and Assessing Their Antibiotic Susceptibility Using Infrared Spectroscopy and Machine Learning. SENSORS (BASEL, SWITZERLAND) 2023; 23:8132. [PMID: 37836961 PMCID: PMC10575053 DOI: 10.3390/s23198132] [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: 08/14/2023] [Revised: 09/25/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023]
Abstract
Bacterial resistance to antibiotics is a primary global healthcare concern as it hampers the effectiveness of commonly used antibiotics used to treat infectious diseases. The development of bacterial resistance continues to escalate over time. Rapid identification of the infecting bacterium and determination of its antibiotic susceptibility are crucial for optimal treatment and can save lives in many cases. Classical methods for determining bacterial susceptibility take at least 48 h, leading physicians to resort to empirical antibiotic treatment based on their experience. This random and excessive use of antibiotics is one of the most significant drivers of the development of multidrug-resistant (MDR) bacteria, posing a severe threat to global healthcare. To address these challenges, considerable efforts are underway to reduce the testing time of taxonomic classification of the infecting bacterium at the species level and its antibiotic susceptibility determination. Infrared spectroscopy is considered a rapid and reliable method for detecting minor molecular changes in cells. Thus, the main goal of this study was the use of infrared spectroscopy to shorten the identification and the susceptibility testing time of Proteus mirabilis and Pseudomonas aeruginosa from 48 h to approximately 40 min, directly from patients' urine samples. It was possible to identify the Proteus mirabilis and Pseudomonas aeruginosa species with 99% accuracy and, simultaneously, to determine their susceptibility to different antibiotics with an accuracy exceeding 80%.
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Affiliation(s)
- George Abu-Aqil
- Department of Microbiology, Immunology, and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Itshak Lapidot
- Department of Electrical Engineering, ACLP-Afeka Center for Language Processing, Afeka Tel-Aviv Academic College of Engineering, Tel-Aviv 69107, Israel;
- Laboratoire Informatique d’Avignon (LIA), Avignon Université, 339 Chemin des Meinajaries, 84000 Avignon, France
| | - Ahmad Salman
- Department of Physics, SCE-Shamoon College of Engineering, Beer-Sheva 84100, Israel
| | - Mahmoud Huleihel
- Department of Microbiology, Immunology, and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Espitia-Almeida F, Valle-Molinares R, Navarro Quiroz E, Pacheco-Londoño LC, Galán-Freyle NJ. Photodynamic Antimicrobial Activity of a Novel 5,10,15,20-Tetrakis (4-Ethylphenyl) Porphyrin against Clinically Important Bacteria. Pharmaceuticals (Basel) 2023; 16:1059. [PMID: 37630978 PMCID: PMC10459089 DOI: 10.3390/ph16081059] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/10/2023] [Accepted: 07/20/2023] [Indexed: 08/27/2023] Open
Abstract
The growing emergence of microbes resistant to commercially available antibiotic therapies poses a threat to healthcare systems worldwide. Multiple factors have been associated with the increasing incidence of hospital-acquired infections caused by antibiotic-resistant pathogens, including the indiscriminate use of broad-spectrum antibiotics, the massive application of antibiotics in hospitals as a prophylactic measure, self-medication, and nonadherence to pharmacological therapies by patients. In this study, we developed a novel treatment to mitigate the impact of microbial resistance. We synthesized a benzoporphyrin derivative, 5,10,15,20-tetrakis (4-ethylphenyl) porphyrin (TEtPP), with a reaction yield close to 50%. TEtPP exhibited excellent photophysical properties (Φf = 0.12 ± 0.04 and ΦΔ = 0.81 ± 0.23) and was thereby assessed as a potential agent for antibacterial photodynamic therapy. The photophysical properties of the synthesized porphyrin derivative were correlated with the assayed antimicrobial activity. TEtPP showed higher activity against the MRSA strain under irradiation than in the absence of irradiation (minimum inhibitory concentration (MIC) = 69.42 µg/mL vs. MIC = 109.30 µg/mL, p < 0.0001). Similar behavior was observed against P. aeruginosa (irradiated MIC = 54.71 µg/mL vs. nonirradiated MIC = 402.90 µg/mL, p < 0.0001). TEtPP exhibited high activity against S. aureus in both the irradiated and nonirradiated assays (MIC = 67.68 µg/mL vs. MIC = 58.26 µg/mL, p = 0.87).
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Affiliation(s)
- Fabián Espitia-Almeida
- Life Science Research Center, Universidad Simón Bolívar, Barranquilla 080002, Colombia (N.J.G.-F.)
- Faculty of Basic and Biomedical Sciences, Universidad Simón Bolívar, Barranquilla 080002, Colombia
- Faculty of Basic Sciences, Biology Program, Universidad del Atlántico, Puerto Colombia 081001, Colombia
| | - Roger Valle-Molinares
- Faculty of Basic Sciences, Biology Program, Universidad del Atlántico, Puerto Colombia 081001, Colombia
| | - Elkin Navarro Quiroz
- Life Science Research Center, Universidad Simón Bolívar, Barranquilla 080002, Colombia (N.J.G.-F.)
| | | | - Nataly J. Galán-Freyle
- Life Science Research Center, Universidad Simón Bolívar, Barranquilla 080002, Colombia (N.J.G.-F.)
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13
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Chen T, Wan B, Wang M, Lin S, Wu Y, Huang J. Evaluating the global, regional, and national impact of syphilis: results from the global burden of disease study 2019. Sci Rep 2023; 13:11386. [PMID: 37452074 PMCID: PMC10349077 DOI: 10.1038/s41598-023-38294-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/06/2023] [Indexed: 07/18/2023] Open
Abstract
Syphilis is a global public health concern. This study aimed to assess the global and regional burden of syphilis from 1990 to 2019. Disease burden was evaluated using disability-adjusted life-years (DALYs) and prevalence. Data were extracted from the 2019 global burden of disease Study, an open database available for download. Age-standardized rates (ASR) and estimated annual percentage changes (EAPC) were calculated to evaluate the syphilis burden over time. In 2019, the total number of prevalent cases of syphilis was 49.71 million worldwide. The ASR of prevalence was stable from 1990 to 2019 with an EAPC of 0.00 (95% CI - 0.10-0.11). The number of DALYs caused by syphilis was 7.36 million in 2019, reflecting a reduction of 16.38% compared with that in 1990 (8.80 million). The ASR of DALYs exhibited a decreasing trend from 1990 to 2019 (EAPC = - 1.01; 95% CI - 1.19 to - 0.84), with the highest rates observed in the younger age group (< 14 years old). In 2019, the highest ASR of DALYs was found in low sociodemographic index (SDI) regions (239.21/100,000), and the lowest in high SDI regions (3.14/100,000). Generally, the ASR of DALYs decreased as the SDI increased. The top three countries with the highest ASR of DALYs for syphilis were the Solomon Islands, Equatorial Guinea, and Liberia. While the global prevalence of syphilis remained persistently high from 1990 to 2019, there has been a recent decrease in the ASR of DALYs. Increased attention should be dedicated to younger populations and regions characterized by low SDIs.
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Affiliation(s)
- Tao Chen
- The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Bo Wan
- The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Mingfang Wang
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China
- Fujian Clinical Research Center for Liver and Intestinal Diseases, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- Department of Hepatology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Su Lin
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China
- Fujian Clinical Research Center for Liver and Intestinal Diseases, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- Department of Hepatology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Yinlian Wu
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China
- Fujian Clinical Research Center for Liver and Intestinal Diseases, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
- Department of Hepatology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China
| | - Jiaofeng Huang
- Department of Hepatology, Hepatology Research Institute, The First Affiliated Hospital, Fujian Medical University, No. 20, Chazhong Road, Taijiang District, Fuzhou, 350005, Fujian, China.
- Fujian Clinical Research Center for Liver and Intestinal Diseases, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China.
- Department of Hepatology, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, China.
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14
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Balhaddad AA, AlSheikh RN. Effect of eucalyptus oil on Streptococcus mutans and Enterococcus faecalis growth. BDJ Open 2023; 9:26. [PMID: 37414765 PMCID: PMC10326078 DOI: 10.1038/s41405-023-00154-8] [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: 04/11/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 07/08/2023] Open
Abstract
OBJECTIVES There is a significant apprehension in medicine and dentistry concerning the emergence of antibiotic-resistant pathogens, as it composes a significant threat to global health, particularly oral health. The growing concern that oral pathogens may develop resistance against standard preventive measures raises the need for alternative measures to prevent these pathogens' growth without inducing microbial resistance. Therefore, this study aims to assess the antibacterial properties of eucalyptus oil (EO) against two main oral disease pathogens, Streptococcus mutans, and Enterococci faecalis. METHODS S. mutans and E. faecalis biofilms were initiated using brain-heart infusion (BHI) broth supplemented with 2% sucrose with and without diluted EO. After 24 h of biofilm formation, total absorbance was measured via spectrophotometer; then, the biofilm was fixed, stained with crystal violet dye, and measured at 490 nm. An Independent t-test was used to compare the outcomes. RESULTS Diluted EO revealed significant total absorbance reduction against S. mutans and E. faecalis compared to the control (p ≤ 0.001). For the biofilm measurement, S. mutans and E. faecalis biofilms were reduced by around 60- and 30-fold, respectively, compared to the group with no EO (p ≤ 0.001). CONCLUSION Based on this study's results, using EO as an organic compound could be considered an adjunctive tool in preventing the growth of oral pathogens causing dental caries and endodontic infection.
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Affiliation(s)
- Abdulrahman A Balhaddad
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O.Box 1982, Dammam, 31441, Saudi Arabia.
| | - Rasha N AlSheikh
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O.Box 1982, Dammam, 31441, Saudi Arabia
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15
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Jokar J, Saleh RO, Rahimian N, Ghasemian A, Ghaznavi G, Radfar A, Zarenezhad E, Najafipour S. Antibacterial effects of single phage and phage cocktail against multidrug-resistant Klebsiella pneumoniae isolated from diabetic foot ulcer. Virus Genes 2023:10.1007/s11262-023-02004-z. [PMID: 37259013 DOI: 10.1007/s11262-023-02004-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/30/2023] [Indexed: 06/02/2023]
Abstract
Diabetic foot ulcer (DFU) is associated with long-term hospitalization and amputation. Antibiotic resistance has made the infection eradication more difficult. Hence, seeking alternative therapies such as phage therapy seems necessary. Bacteriophages are viruses targeting specific bacterial species. Klebsiella pneumoniae (K. pneumoniae) is among causative agents of the DFU. In this study, the therapeutic effects of single phage and phage cocktail were investigated against multidrug-resistant (MDR) K. pneumonia isolated from DFU. Bacteriophages were isolated from animal feces and sewage samples, and were enriched and propagated using K. pneumoniae as the host. Thirty K. pneumoniae clinical isolates were collected from hospitalized patients with DFU. The antibiotic susceptibility pattern was determined using agar disk diffusion test. The phages' morphological traits were determined using transmission electron microscopy (TEM). The killing effect of isolated phages was assessed using plaque assay. Four phage types were isolated and recognized including KP1, KP2, KP3, and KP4. The bacterial rapid regrowth was observed following each single phage-host interaction, but not phage cocktail due to the evolution of mutant strains. Phage cocktail demonstrated significantly higher antibacterial activity than each single phage (p < 0.05) without any bacterial regrowth. The employment of phage cocktail was promising for the eradication of MDR-K. pneumoniae isolates. The development of phage therapy in particular, phage cocktail is promising as an efficient approach to eradicate MDR-K. pneumoniae isolated from DFU. The application of a specific phage cocktail can be investigated to try and achieve the eradication of various infections.
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Affiliation(s)
- Javad Jokar
- School of Advanced Technologies in Medicine, Fasa University of Medical Science, Fasa, Iran
- Department of Tissue Engineering, Faculty of Medicine, Fasa University of Medical Science, Fasa, Iran
| | - Raed Obaid Saleh
- Department of Pathological Analysis, College of Applied Science, University of Fallujah, Al-Anbar, Iraq
| | - Niloofar Rahimian
- Department of Biotechnology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Abdolmajid Ghasemian
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Ghazal Ghaznavi
- Department of Microbiology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
- Department of Medical Biotechnology, School of Advanced Medical Science, and Technologies, Shiraz University If Medical Sciences, Shiraz, Iran
| | - Amirhossein Radfar
- Department of Medical Parasitology, School of Advanced Medical Science, and Technologies, Shiraz University If Medical Sciences, Shiraz, Iran
| | - Elham Zarenezhad
- Department of Biotechnology, Faculty of Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Sohrab Najafipour
- School of Advanced Technologies in Medicine, Fasa University of Medical Science, Fasa, Iran.
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16
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Yang Q, Yang BT, Kang YH, Cong W. Efficacy of a recombinant Lactobacillus plantarum Lp-pPG-Malt as an oral vaccine candidate against Aeromonas hydrophila infection in crucian carp. FISH & SHELLFISH IMMUNOLOGY 2023; 136:108737. [PMID: 37030560 DOI: 10.1016/j.fsi.2023.108737] [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: 01/01/2023] [Revised: 03/19/2023] [Accepted: 04/05/2023] [Indexed: 06/19/2023]
Abstract
Aeromonas hydrophila (A. hydrophila), a gram-negative bacterium, causes serious diseases with various clinical symptoms in farm raised fish. Thus, different ways to prevent and control A. hydrophila infection need to be explored, including a vaccine. In this study, we evaluated the protective efficacy of an oral vaccine prepared from the A. hydrophila TPS maltoporin (Malt) with Lactobacillus plantarum (L. plantarum) against A. hydrophila infection in crucian carp (Carassius auratus). For the in vivo experiment, the oral vaccine was administered to crucian carp by feeding them fish diets containing Lp-pPG-Malt, Lp-pPG and PBS for 28 days. The enzyme-linked immunosorbent assay (ELISA), leukocyte phagocytosis assay and real-time quantitative polymerase chain reaction (RT-qPCR) were performed to measure the protective efficacy of the Lp-pPG-Malt. ELISA and leukocyte phagocytosis assay confirmed that Lp-pPG-Malt significantly enhanced the IgM level and nonspecific immune response of crucian carp compared with the control groups (Lp-pPG and PBS). The RT-qPCR results showed that the Lp-pPG-Malt increased the relative expression of immune-related genes (IL-10, IL-1β, TNF-α, IFN-γ) of crucian carp in various tissues (liver, spleen, head kidney and hind intestine). Moreover, Lp-pPG-Malt significantly increased the relative percent survival of fish after intraperitoneal injection with A. hydrophila (55%) compared with the Lp-pPG and PBS groups (0%). These findings suggest that Lp-pPG-Malt can serve as an oral vaccine candidate for A. hydrophila infection and that Malt can be used as an effective antigen in crucian carp farming.
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Affiliation(s)
- Qing Yang
- Marine College, Shandong University, Weihai, 264209, China
| | - Bin-Tong Yang
- Marine College, Shandong University, Weihai, 264209, China; Shandong Fu Han Ocean Sci-Tech Co., Ltd, Haiyang, 265100, China
| | - Yuan-Huan Kang
- Marine College, Shandong University, Weihai, 264209, China; Shandong Key Laboratory of Animal Microecological Preparation, Tai'an, 271000, China.
| | - Wei Cong
- Marine College, Shandong University, Weihai, 264209, China.
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Singh SB, Bhandari S, Siwakoti S, Bhatta R, Raynor WY, Werner TJ, Alavi A, Hess S, Revheim ME. Is Imaging Bacteria with PET a Realistic Option or an Illusion? Diagnostics (Basel) 2023; 13:diagnostics13071231. [PMID: 37046449 PMCID: PMC10093025 DOI: 10.3390/diagnostics13071231] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/14/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
The application of [18F]-fluorodeoxyglucose ([18F]FDG) as a radiotracer to detect sites of inflammation (either due to bacterial infection or primary inflammation) has led to exploring the role of PET in visualizing bacteria directly at sites of infection. However, the results from such efforts are controversial and inconclusive so far. We aimed to assess the limitations of PET as an effective modality in the diagnosis of bacterial infections. Inflammation due to bacterial infections can be visualized by using [18F]FDG-PET. However, the non-specificity of [18F]FDG makes it undesirable to visualize bacteria as the underlying cause of inflammation. Hence, more specific radiotracers that possibly bind to or accumulate in bacteria-specific receptors or enzymes are being explored. Several radiotracers, including 2-deoxy-2-[18F]fluorosorbitol ([18F]FDS), 6-[18F]-fluoromaltose, [11C]para-aminobenzoic acid ([11C]PABA), radiolabeled trimethoprim (11C-TMP) and its analog fluoropropyl-trimethoprim (18F-FPTMP), other radiolabeled sugars, and antimicrobial drugs have been used to image microorganisms. Unfortunately, no progress has been made in translating the results to routine human use; feasibility and other factors have constrained their success in clinical settings. In the current article, we discuss the limitations of direct bacterial visualization with PET tracers, but emphasize the important role of [18F]FDG-PET as the only option for detecting evidence of infection.
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Affiliation(s)
- Shashi B Singh
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Sadikshya Bhandari
- Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Dhulikhel 45200, Nepal
| | - Shisir Siwakoti
- Kathmandu University School of Medical Sciences, Dhulikhel Hospital, Dhulikhel 45200, Nepal
| | - Rabi Bhatta
- Universal College of Medical Sciences, Bhairahawa 32900, Nepal
| | - William Y Raynor
- Department of Radiology, Rutgers Robert Wood Johnson Medical School, 1 Robert Wood Johnson Place, MEB #404, New Brunswick, NJ 08901, USA
| | - Thomas J Werner
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Abass Alavi
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA 19104, USA
| | - Soren Hess
- Department of Radiology and Nuclear Medicine, Hospital Southwest Jutland, 6700 Esbjerg, Denmark
- Department of Regional Health Research, Faculty of Health Sciences, University of Southern Denmark, 5230 Odense, Denmark
| | - Mona-Elisabeth Revheim
- The Intervention Center, Division of Technology and Innovation, Oslo University Hospital, 0424 Oslo, Norway
- Division for Radiology and Nuclear Medicine, Oslo University Hospital, 0424 Oslo, Norway
- Norway and Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0315 Oslo, Norway
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18
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Deusdará TT, Félix MKC, de S Brito H, Cangussu EWS, de S Moura W, Albuquerque B, Silva MG, Dos Santos GR, de Morais PB, da Silva EF, Chaves YO, Mariúba LAM, Nogueira PA, Astolfi-Filho S, Assunção EN, Epiphanio S, Marinho CRF, Brandi IV, Viana KF, Oliveira EE, Cangussu ASR. Using an Aluminum Hydroxide–Chitosan Matrix Increased the Vaccine Potential and Immune Response of Mice against Multi-Drug-Resistant Acinetobacter baumannii. Vaccines (Basel) 2023; 11:vaccines11030669. [PMID: 36992253 DOI: 10.3390/vaccines11030669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
Acinetobacter baumannii is a Gram-negative, immobile, aerobic nosocomial opportunistic coccobacillus that causes pneumonia, septicemia, and urinary tract infections in immunosuppressed patients. There are no commercially available alternative antimicrobials, and multi-drug resistance is an urgent concern that requires emergency measures and new therapeutic strategies. This study evaluated a multi-drug-resistant A. baumannii whole-cell vaccine, inactivated and adsorbed on an aluminum hydroxide–chitosan (mAhC) matrix, in an A. baumannii sepsis model in immunosuppressed mice by cyclophosphamide (CY). CY-treated mice were divided into immunized, non-immunized, and adjuvant-inoculated groups. Three vaccine doses were given at 0D, 14D, and 28D, followed by a lethal dose of 4.0 × 108 CFU/mL of A. baumannii. Immunized CY-treated mice underwent a significant humoral response, with the highest IgG levels and a higher survival rate (85%); this differed from the non-immunized CY-treated mice, none of whom survived (p < 0.001), and from the adjuvant group, with 45% survival (p < 0.05). Histological data revealed the evident expansion of white spleen pulp from immunized CY-treated mice, whereas, in non-immunized and adjuvanted CY-treated mice, there was more significant organ tissue damage. Our results confirmed the proof-of-concept of the immune response and vaccine protection in a sepsis model in CY-treated mice, contributing to the advancement of new alternatives for protection against A. baumannii infections.
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Affiliation(s)
- Túllio T Deusdará
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
| | - Mellanie K C Félix
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
| | - Helio de S Brito
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
| | - Edson W S Cangussu
- Graduate Program in Biotechnology, Federal University of Tocantins, Gurupi 77425-000, TO, Brazil
| | - Wellington de S Moura
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
| | - Benedito Albuquerque
- Graduate Program in Biotechnology, Federal University of Tocantins, Gurupi 77425-000, TO, Brazil
| | - Marcos G Silva
- Graduate Program in Biotechnology, Federal University of Tocantins, Gurupi 77425-000, TO, Brazil
| | - Gil R Dos Santos
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
- Graduate Program in Biotechnology, Federal University of Tocantins, Gurupi 77425-000, TO, Brazil
| | - Paula B de Morais
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
| | - Elizangela F da Silva
- Instituto Leônidas e Maria Deane, Oswaldo Cruz Foundation-Fiocruz Amazônia, Manaus 69057-070, AM, Brazil
| | - Yury O Chaves
- Instituto Leônidas e Maria Deane, Oswaldo Cruz Foundation-Fiocruz Amazônia, Manaus 69057-070, AM, Brazil
| | - Luis Andre M Mariúba
- Instituto Leônidas e Maria Deane, Oswaldo Cruz Foundation-Fiocruz Amazônia, Manaus 69057-070, AM, Brazil
| | - Paulo A Nogueira
- Instituto Leônidas e Maria Deane, Oswaldo Cruz Foundation-Fiocruz Amazônia, Manaus 69057-070, AM, Brazil
| | - Spartaco Astolfi-Filho
- Laboratory of DNA Technology, Biotechnology Department, Multidisciplinary Support Center, Federal University of Amazonas, Manaus 69080-900, AM, Brazil
| | - Enedina N Assunção
- Laboratory of DNA Technology, Biotechnology Department, Multidisciplinary Support Center, Federal University of Amazonas, Manaus 69080-900, AM, Brazil
| | - Sabrina Epiphanio
- Department of Immunology, Biomedical Science Institute, University of São Paulo (USP), São Paulo 05508-060, SP, Brazil
| | - Claudio R F Marinho
- Department of Immunology, Biomedical Science Institute, University of São Paulo (USP), São Paulo 05508-060, SP, Brazil
| | - Igor V Brandi
- Institute of Agricultural Sciences, Federal University of Minas Gerais, Montes Claros 39400-310, MG, Brazil
- Department of Biotchnology, State University of Montes Claros, Montes Claros 39401-089, MG, Brazil
| | - Kelvinson F Viana
- Interdisciplinary Center for Life Sciences and Nature, Federal University of Latin American Integration (UNILA), Foz do Iguaçu 85866-000, PR, Brazil
| | - Eugenio E Oliveira
- Graduate Program in Biotechnology, Federal University of Tocantins, Gurupi 77425-000, TO, Brazil
- Departamento de Entomologia, Universidade Federal de Viçosa, Viçosa 36570-900, MG, Brazil
| | - Alex Sander R Cangussu
- Graduate Program for Biodiversity and Biotechnology of Legal Amazon, Federal University of Tocantins, Palmas 77001-090, TO, Brazil
- Graduate Program in Biotechnology, Federal University of Tocantins, Gurupi 77425-000, TO, Brazil
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Mohajer F, Mohammadi Ziarani G, Badiei A, Iravani S, Varma RS. Recent advances in covalent organic frameworks (COFs) for wound healing and antimicrobial applications. RSC Adv 2023; 13:8136-8152. [PMID: 36922952 PMCID: PMC10009765 DOI: 10.1039/d2ra07194k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 02/04/2023] [Indexed: 03/16/2023] Open
Abstract
Covalent organic frameworks (COFs) are crystal-like organic structures such as cartography buildings prepared from appropriately pre-designed construction block precursors. Moreover, after the expansion of the first COF in 2005, numerous researchers have been developing different materials for versatile applications such as sensing/imaging, cancer theranostics, drug delivery, tissue engineering, wound healing, and antimicrobials. COFs have harmonious pore size, enduring porosity, thermal stability, and low density. In addition, a wide variety of functional groups could be implanted during their construction to provide desired constituents, including antibodies and enzymes. The reticular organic frameworks comprising porous hybrid materials connected via a covalent bond have been studied for improving wound healing and dressing applications due to their long-standing antibacterial properties. Several COF-based systems have been planned for controlled drug delivery with wound healing purposes, targeting drugs to efficiently inhibit the growth of pathogenic microorganisms at the wound spot. In addition, COFs can be deployed for combinational therapy using photodynamic and photothermal antibacterial therapy along with drug delivery for healing chronic wounds and bacterial infections. Herein, the most recent advancements pertaining to the applications of COF-based systems against bacterial infections and for wound healing are considered, concentrating on challenges and future guidelines.
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Affiliation(s)
- Fatemeh Mohajer
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University Tehran Iran
| | | | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran Iran
| | - Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences Isfahan 81746-73461 Iran
| | - Rajender S Varma
- Institute for Nanomaterials, Advanced Technologies and Innovation (CxI), Technical University of Liberec (TUL) Studentská 1402/2 Liberec 1 461 17 Czech Republic
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Efficacy of organo-selenium-incorporated urinary catheter tubing for in vitro growth inhibition of E. coli, K. pneumoniae, P. aeruginosa, and H. influenzae. Int Urol Nephrol 2023; 55:503-510. [PMID: 36462116 DOI: 10.1007/s11255-022-03422-y] [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: 07/12/2022] [Accepted: 11/18/2022] [Indexed: 12/04/2022]
Abstract
PURPOSE Catheter-associated urinary tract infections are of significant medical burden in cost, morbidity, and mortality. Experimental selenium-coated medical devices have demonstrated non-toxic in vitro and in vivo antimicrobial activity. While antimicrobial-coated catheters have shown efficacy in preventing CAUTIs, selenium has not been tested in this context. The purpose of this in vitro study is to evaluate selenium-incorporated urinary catheters for inhibition of uropathogenic bacterial growth and biofilm formation. METHODS Urinary catheters incorporated with 1% organo-selenium and standard (uncoated) catheters were incubated in vitro with E. coli, K. pneumoniae, P. aeruginosa, H. influenzae, and combinations of these bacteria. Growth was evaluated by colony-forming unit count and visualized with confocal laser and scanning electron microscopy. Organo-selenium catheter material integrity was also tested by soaking the tubing in phosphate-buffered saline for 12 weeks at 37 °C. RESULTS Organo-selenium-incorporated catheters demonstrated total reduction (100%) of in vitro bacterial growth and biofilm formation for E. coli, K. pneumoniae, H. influenzae, and a combination of these species when compared to control. P. aeruginosa growth was inhibited by approximately 4 logs (99.99%). Complete inhibition of E. coli growth was maintained after long-term phosphate-buffered saline soaking. CONCLUSION The results demonstrate that organo-selenium was stably incorporated into catheter tubing and inhibited bacterial attachment, growth, and biofilm formation for multiple uropathogenic organisms. Furthermore, long-term soaking of organo-selenium tubing in phosphate-buffered saline did not show any decline in bacterial growth inhibition or biofilm formation. These findings suggest that organo-selenium-incorporated catheters may be advantageous in preventing catheter-associated urinary tract infections and warrant further in vivo and clinical evaluation.
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Healthcare System Distrust and Non-Prescription Antibiotic Use: A Cross-Sectional Survey of Adult Antibiotic Users. Antibiotics (Basel) 2023; 12:antibiotics12010079. [PMID: 36671280 PMCID: PMC9854942 DOI: 10.3390/antibiotics12010079] [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: 11/30/2022] [Revised: 12/22/2022] [Accepted: 12/24/2022] [Indexed: 01/03/2023] Open
Abstract
Antibiotic resistance is a major public health concern driven by antibiotic overuse. Antibiotic stewardship programs are often limited to clinical settings and do little to address non-prescription antibiotic use in community settings. This study investigates the association between non-prescription antibiotic use and healthcare system distrust in the United States and Mexico. An online survey was deployed in the United States and Mexico with enhanced sampling through in-person recruiting in the border region. Non-prescription antibiotic use was defined as having bought or borrowed non-prescription oral or injectable antibiotics within the last 3 years. The survey included a previously validated 10-item scale to measure healthcare system distrust. Logistic regression was used to model the use of non-prescription antibiotics by the level of healthcare system distrust, adjusted for demographic characteristics and antibiotic knowledge. In total, 568 survey participants were included in the analysis, 48.6% of whom had used non-prescription oral or injectable antibiotics in the last 3 years. In the fully adjusted regression model, the odds of using non-prescription antibiotics were 3.2 (95% CI: 1.8, 6.1) times higher for those in the highest distrust quartile versus the lowest. These findings underscore the importance of community-based antibiotic stewardship and suggest that these programs are particularly critical for communities with high levels of healthcare system distrust.
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Singh R, Thakur L, Kumar A, Singh S, Kumar S, Kumar M, Kumar Y, Kumar N. Comparison of freeze-thaw and sonication cycle-based methods for extracting AMR-associated metabolites from Staphylococcus aureus. Front Microbiol 2023; 14:1152162. [PMID: 37180233 PMCID: PMC10174324 DOI: 10.3389/fmicb.2023.1152162] [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: 01/27/2023] [Accepted: 04/10/2023] [Indexed: 05/16/2023] Open
Abstract
Emerging antimicrobial resistance (AMR) among Gram-positive pathogens, specifically in Staphylococcus aureus (S. aureus), is becoming a leading public health concern demanding effective therapeutics. Metabolite modulation can improve the efficacy of existing antibiotics and facilitate the development of effective therapeutics. However, it remained unexplored for drug-resistant S. aureus (gentamicin and methicillin-resistant), primarily due to the dearth of optimal metabolite extraction protocols including a protocol for AMR-associated metabolites. Therefore, in this investigation, we have compared the performance of the two most widely used methods, i.e., freeze-thaw cycle (FTC) and sonication cycle (SC), alone and in combination (FTC + SC), and identified the optimal method for this purpose. A total of 116, 119, and 99 metabolites were identified using the FTC, SC, and FTC + SC methods, respectively, leading to the identification of 163 metabolites cumulatively. Out of 163, 69 metabolites were found to be associated with AMR in published literature consisting of the highest number of metabolites identified by FTC (57) followed by SC (54) and FTC + SC (40). Thus, the performances of FTC and SC methods were comparable with no additional benefits of combining both. Moreover, each method showed biasness toward specific metabolite(s) or class of metabolites, suggesting that the choice of metabolite extraction method shall be decided based on the metabolites of interest in the investigation.
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Affiliation(s)
- Rita Singh
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Jawaharlal Nehru University, Delhi, India
| | - Lovnish Thakur
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Jawaharlal Nehru University, Delhi, India
| | - Ashok Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Sevaram Singh
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Jawaharlal Nehru University, Delhi, India
| | - Shailesh Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Manoj Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Yashwant Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- *Correspondence: Yashwant Kumar,
| | - Niraj Kumar
- Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
- Niraj Kumar,
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Zarauz JM, Zafrilla P, Ballester P, Cerda B. Study of the Drivers of Inappropriate Use of Antibiotics in Community Pharmacy: Request for Antibiotics Without a Prescription, Degree of Adherence to Treatment and Correct Recycling of Leftover Treatment. Infect Drug Resist 2022; 15:6773-6783. [PMID: 36447792 PMCID: PMC9701454 DOI: 10.2147/idr.s375125] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 09/20/2022] [Indexed: 10/10/2023] Open
Abstract
INTRODUCTION The WHO considered antibiotic resistance as 1 of the 10 greatest threats to global health in 2019. The inappropriate and indiscriminate use of antibiotics, together with the lack of new therapeutic alternatives, may eradicate their effectiveness in the closest future. OBJECTIVE The general objective is to analyze the different causes attributable to patients, providers and pharmacists that could be drivers of irrational use of antibiotics, and responsible for the appearance of bacterial resistance, in community pharmacies. To this end, the different processes or indicators were studied: patients' requests of antibiotics at the pharmacy, their degree of adherence, satisfaction with the prescribed treatment and antibiotics' surplus recycling. METHODS This study was observational, descriptive, and cross-sectional, carried out in 2 pharmacy offices, including 333 participants. At the time of dispensing, first phase, surveys to collect patients', providers' and pharmacists' data were carried out over the counter. The second phase, with the aim of checking adherence, degree of satisfaction and recycling. RESULTS There were 333 requests for antibiotic regardless prescription availability, 17% of the patients requested an antibiotic without having one. 38% of patients did not have full adherence to antibiotics. Exploring non-adherence reasons, 24% forgot to take the treatment, 2% experienced adverse effects; 8% improved infection symptoms and 21% had problems to follow schedule. Regarding the recycling habits, 57% of patients had leftover treatments at home, but only 11% recycled it. 10% of medical prescriptions were forced by the patient, and significant gender differences were observed in adherence and knowledge of treatment. CONCLUSION The results of this study suggested that there may be a significant level of antibiotic inappropriate use locally, potentially related to patients' sex, finding significant deficiencies in prescription by doctors, in the dispensing act carried out in community pharmacies, and finally in patient compliance with treatment.
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Affiliation(s)
- José María Zarauz
- Health Sciences PhD Program, Faculty of Health Sciences, Catholic University of Murcia, Guadalupe, Murcia, Spain
| | - Pilar Zafrilla
- Faculty of Health Sciences, Catholic University of Murcia, Guadalupe, Murcia, Spain
| | - Pura Ballester
- Faculty of Health Sciences, Catholic University of Murcia, Guadalupe, Murcia, Spain
| | - Begoña Cerda
- Faculty of Health Sciences, Catholic University of Murcia, Guadalupe, Murcia, Spain
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Ochoa AM, García MI, Cienfuegos A, Vásquez-Jaramillo L. Isolation of Escherichia coli and Klebsiella pneumoniae strains producing extended spectrum β-lactamases from dog urine of the Metropolitan Area of the Aburrá Valley Antioquia-Colombia. REVISTA DE LA FACULTAD DE MEDICINA VETERINARIA Y DE ZOOTECNIA 2022. [DOI: 10.15446/rfmvz.v69n3.103805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Escherichia coli and Klebsiella pneumoniae are the most common pathogens causing urinary tract infections in humans and animals. Close contact between humans and companion animals can facilitate the spread of multidrugresistant pathogens between both species. Objective: To characterize extended-spectrum β-lactamases (ESBL) -producing E. coli and K. pneumoniae isolated from dogs with urinary tract infections in the metropolitan area of Valle del Aburrá (Antioquia, Colombia). Methods: Three-hundred seventy-one urine samples collected from March 2018 to March 2019 in a veterinary clinical laboratory were analyzed. E. coli and K. pneumoniae isolates were detected in chromogenic agar and identified by biochemical tests. Susceptibility testing was performed by disc diffusion and ESBL production was evaluated by the double disk test in all isolates. MIC determination of ESBL-positive isolates were performed on the automated VITEK®2 system. Multiple PCR was used for the detection of CTX-M beta-lactamases (group 1, 2, 9 and 8/25), SHV, TEM and AmpC of plasmid origin in ESBL-positive isolates. Results: In total 22 out 371 isolates were positive for ESBL production by double disc test, 11 E. coli (ESBL-Ec) and 11 K. pneumoniae (ESBL-Kp). The multiple PCR detected CTX-M group 1 in the 22 ESBL-positive isolates. Multi-drug resistance was observed in all ESBL-producing isolates Conclusions: A high frequency of antibiotic multi-resistance was found in ESBL-Ec and ESBL-Kp. The main ESBL detected was CTX-M group 1, which also prevails in human isolates.
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Liang W, Yu Q, Zheng Z, Liu J, Cai Q, Liu S, Lin S. Design and Synthesis of Phenyl Sulfide-Based Cationic Amphiphiles as Membrane-Targeting Antimicrobial Agents against Gram-Positive Pathogens. J Med Chem 2022; 65:14221-14236. [PMID: 36256884 DOI: 10.1021/acs.jmedchem.2c01437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Due to the emergence of antimicrobial resistance and the lack of new antibacterial agents, it has become urgent to discover and develop new antibacterial agents against multidrug-resistant pathogens. Antimicrobial peptides (AMPs) serve as the first line of defense for the host. In this work, we have designed, synthesized, and biologically evaluated a series of phenyl sulfide derivatives by biomimicking the structural features and biological functions of AMPs. Among these derivatives, the most promising compound 17 exhibited potent antibacterial activity against Gram-positive bacteria (minimum inhibitory concentrations = 0.39-1.56 μg/mL), low hemolytic activity (HC50 > 200 μg/mL), and high membrane selectivity. In addition, 17 can rapidly kill Gram-positive bacteria within 0.5 h through membrane-targeting action and avoid antibiotic resistance. More importantly, 17 showed high in vivo efficacy against Staphylococcus aureus in a murine corneal infection model. Therefore, 17 has great potential as a lead compound for the treatment of Gram-positive bacterial infections.
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Affiliation(s)
- Wanxin Liang
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Qian Yu
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Zixian Zheng
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Jiayong Liu
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Qiongna Cai
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Shouping Liu
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
| | - Shuimu Lin
- Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China
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Fluoroquinolones Hybrid Molecules as Promising Antibacterial Agents in the Fight against Antibacterial Resistance. Pharmaceutics 2022; 14:pharmaceutics14081749. [PMID: 36015376 PMCID: PMC9414178 DOI: 10.3390/pharmaceutics14081749] [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: 07/27/2022] [Revised: 08/12/2022] [Accepted: 08/14/2022] [Indexed: 11/17/2022] Open
Abstract
The emergence of bacterial resistance has motivated researchers to discover new antibacterial agents. Nowadays, fluoroquinolones keep their status as one of the essential classes of antibacterial agents. The new generations of fluoroquinolones are valuable therapeutic tools with a spectrum of activity, including Gram-positive, Gram-negative, and atypical bacteria. This review article surveys the design of fluoroquinolone hybrids with other antibacterial agents or active compounds and underlines the new hybrids' antibacterial properties. Antibiotic fluoroquinolone hybrids have several advantages over combined antibiotic therapy. Thus, some challenges related to joining two different molecules are under study. Structurally, the obtained hybrids may contain a cleavable or non-cleavable linker, an essential element for their pharmacokinetic properties and mechanism of action. The design of hybrids seems to provide promising antibacterial agents helpful in the fight against more virulent and resistant strains. These hybrid structures have proven superior antibacterial activity and less susceptibility to bacterial resistance than the component molecules. In addition, fluoroquinolone hybrids have demonstrated other biological effects such as anti-HIV, antifungal, antiplasmodic/antimalarial, and antitumor activity. Many fluoroquinolone hybrids are in various phases of clinical trials, raising hopes that new antibacterial agents will be approved shortly.
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Contemporary Tools for the Cure against Pernicious Microorganisms: Micro-/Nanorobots. PROSTHESIS 2022. [DOI: 10.3390/prosthesis4030034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
One of the most pressing concerns to global public health is the emergence of drug-resistant pathogenic microorganisms due to increased unconscious antibiotic usage. With the rising antibiotic resistance, existing antimicrobial agents lose their effectiveness over time. This indicates that newer and more effective antimicrobial agents and methods should be investigated. Many studies have shown that micro-/nanorobots exhibit promise in the treatment of microbial infections with their great properties, such as the intrinsic antimicrobial activities owing to their oxidative stress induction and metal ion release capabilities, and effective and autonomous delivery of antibiotics to the target area. In addition, they have multiple simultaneous mechanisms of action against microbes, which makes them remarkable in antimicrobial activity. This review focuses on the antimicrobial micro-/nanorobots and their strategies to impede biofilm formation, following a brief introduction of the latest advancements in micro-/nanorobots, and their implementations against various bacteria, and other microorganisms.
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Drivers of irrational use of antibiotics among children: a mixed-method study among prescribers and dispensers in Tanzania. BMC Health Serv Res 2022; 22:961. [PMID: 35902955 PMCID: PMC9335991 DOI: 10.1186/s12913-022-08359-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Accepted: 07/22/2022] [Indexed: 11/14/2022] Open
Abstract
Background Misuse of antibiotics has been associated with poor knowledge, attitude and practice (KAP). Therefore, this study aimed to assess if KAP of prescribers and dispensers could drive irrational use of antibiotics among children in Tanzania. Methods A convergent parallel mixed-methods study design that employed quantitative and qualitative approaches was conducted in 14 regional referral hospitals (RRHs). A total of 108 participants, prescribers [54] and dispensers [54] working with the pediatric population in the respective regions participated in a quantitative survey, by filling the standard questionnaire while 28 key informant interviews were conducted with in-charges of units from the pharmacy and pediatric departments. Two key informants (prescriber and dispenser) were selected from each RRH. Results Overall, among prescribers and dispensers, there was adequate knowledge; 81.5% and 79.6%, p = 0.53, those with positive attitudes were 31.5% and 81.5%, p < 0.001 and poor practices were among 70.4% and 48% p = 0.0312 respectively. Among prescribers, 14.8% agreed and strongly agreed that prescribing antibiotics that a patient did not need does not contribute to resistance. Moreover 19% disagreed to prescribe antibiotics according to local guidelines. Among dispensers, a-quarter of the dispensers thought individual efforts to implement antibiotic stewardship would not make a difference, 17% agreed and strongly agreed that antibiotics can treat viral infection and 7% agreed and strongly agreed antibiotics can be stopped upon resolution of symptoms. From qualitative interviews, both participants displayed an adequate understanding of multi-contributors of antibiotic resistance (AR) including polypharmacy, community self-medication, among others. Regardless, both professions declared to prescribed and dispensed antibiotics according to the antibiotics available in stock at the facility. Furthermore, prescribers perceived laboratory investigation took a long time, hence wasting their time. On the other hand, Dispensers reported not to provide adequate instruction to the patients, after dispensing antibiotics. Conclusions Both prescribers and dispensers had adequate knowledge, few prescribers had positive attitudes and the majority had poor practices. Few dispensers had poor attitude and practice. These findings highlight the need to provide adequate training on antimicrobial stewardship and enforce regulation that foster appropriate medical practice.
Supplementary Information The online version contains supplementary material available at 10.1186/s12913-022-08359-7.
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Evolutionary Dynamics between Phages and Bacteria as a Possible Approach for Designing Effective Phage Therapies against Antibiotic-Resistant Bacteria. Antibiotics (Basel) 2022; 11:antibiotics11070915. [PMID: 35884169 PMCID: PMC9311878 DOI: 10.3390/antibiotics11070915] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 02/06/2023] Open
Abstract
With the increasing global threat of antibiotic resistance, there is an urgent need to develop new effective therapies to tackle antibiotic-resistant bacterial infections. Bacteriophage therapy is considered as a possible alternative over antibiotics to treat antibiotic-resistant bacteria. However, bacteria can evolve resistance towards bacteriophages through antiphage defense mechanisms, which is a major limitation of phage therapy. The antiphage mechanisms target the phage life cycle, including adsorption, the injection of DNA, synthesis, the assembly of phage particles, and the release of progeny virions. The non-specific bacterial defense mechanisms include adsorption inhibition, superinfection exclusion, restriction-modification, and abortive infection systems. The antiphage defense mechanism includes a clustered regularly interspaced short palindromic repeats (CRISPR)–CRISPR-associated (Cas) system. At the same time, phages can execute a counterstrategy against antiphage defense mechanisms. However, the antibiotic susceptibility and antibiotic resistance in bacteriophage-resistant bacteria still remain unclear in terms of evolutionary trade-offs and trade-ups between phages and bacteria. Since phage resistance has been a major barrier in phage therapy, the trade-offs can be a possible approach to design effective bacteriophage-mediated intervention strategies. Specifically, the trade-offs between phage resistance and antibiotic resistance can be used as therapeutic models for promoting antibiotic susceptibility and reducing virulence traits, known as bacteriophage steering or evolutionary medicine. Therefore, this review highlights the synergistic application of bacteriophages and antibiotics in association with the pleiotropic trade-offs of bacteriophage resistance.
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Yang Q, Yuan F, Li L, Jin J, He J. Effects of monthly evaluations on the rates of irrational antimicrobial prescription in the outpatient and emergency departments at Ningbo No. 6 Hospital, Ningbo, China. Eur J Med Res 2022; 27:98. [PMID: 35733215 PMCID: PMC9214680 DOI: 10.1186/s40001-022-00728-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/13/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Antibiotic resistance is a major global public health problem. The primary cause of antibiotic resistance is inappropriate antibiotic use. In this study, we aimed to verify whether the monthly evaluation of antibiotic prescription improves clinical antibiotic use in outpatient and emergency departments. METHODS A minimum of 25% of the prescriptions for antibacterial drugs were randomly selected at the outpatient and emergency departments to enter the monthly evaluation system from July 2016 to June 2019. We analysed the rate of irrational prescription of antibiotics, proportion of the use of antibiotics, and consistency between the evaluation and expert groups after implementing the monthly assessment to validate the role of monthly evaluations. RESULTS After 3 years of monthly evaluations of antibiotic prescriptions, the utilisation rate of single antibiotics in the outpatient and emergency departments was found to increase each year. Each year, a decreasing trend was observed for the irrational use of antibiotics, whereas the proportion of antibiotics to the total drugs prescribed gradually decreased in the same period. In addition, the consistency of prescription evaluation results between the evaluation and expert groups increased continuously. CONCLUSIONS Monthly evaluation of antibiotic prescriptions is an effective management tool for the rational use of antibiotics in clinical practice. This practice could help reduce the combinative use of antibiotics, rate of irrational antibiotic prescription, and antibiotic use ratio, and play an important role in safe clinical drug use.
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Affiliation(s)
- Qiong Yang
- Department of Pharmacy, Ningbo No. 6 Hospital, Ningbo, China
| | - Fangfang Yuan
- Department of Rheumatism and Immunology, Ningbo No. 6 Hospital, Ningbo, China
| | - Li Li
- Department of Pharmacy, Ningbo No. 6 Hospital, Ningbo, China
| | - Jianfeng Jin
- Department of Pharmacy, Ningbo No. 6 Hospital, Ningbo, China
| | - Junhong He
- Department of Pharmacy, Ningbo No. 6 Hospital, Ningbo, China.
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Snetkov P, Rogacheva E, Kremleva A, Morozkina S, Uspenskaya M, Kraeva L. In-Vitro Antibacterial Activity of Curcumin-Loaded Nanofibers Based on Hyaluronic Acid against Multidrug-Resistant ESKAPE Pathogens. Pharmaceutics 2022; 14:pharmaceutics14061186. [PMID: 35745759 PMCID: PMC9227118 DOI: 10.3390/pharmaceutics14061186] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 02/06/2023] Open
Abstract
Bacterial infections have accompanied humanity throughout its history and became vitally important in the pandemic area. The most pathogenic bacteria are multidrug-resistant strains, which have become widespread due to their natural biological response to the use of antibiotics, including uncontrolled use. The current challenge is finding highly effective antibacterial agents of natural origin, which, however, have low solubility and consequently poor bioavailability. Curcumin, derived from Curcuma longa, is an example of a natural biologically active agent with a wide spectrum of biological effects, particularly against Gram-positive bacteria. However, curcumin exhibits extremely low antibacterial activity against Gram-negative bacteria. Curcumin’s hydrophobicity limits its use in medicine. As such, various polymeric systems have been used, especially biopolymer-based electrospun nanofibers. In the present study, the technological features of the fabrication of curcumin-loaded hyaluronic acid-based nanofibers are discussed in detail, their morphological characteristics, wettability, physico-chemical properties, and curcumin release profiles are demonstrated, and their antibacterial activity against multi-drug resistant ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are evaluated. It is noteworthy that the fibers containing a stable HA–curcumin complex showed high antibacterial activity against both Gram-positive and Gram-negative bacteria, which is an undeniable advantage. It is expected that the results of this work will contribute to the development of antibacterial drugs for topical and internal use with high efficacy and considerably lower side effects.
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Affiliation(s)
- Petr Snetkov
- Center of Chemical Engineering, ITMO University, Kronverkskiy Prospekt, 49, bldg. A, 197101 St. Petersburg, Russia; (S.M.); (M.U.)
- Correspondence:
| | - Elizaveta Rogacheva
- Saint-Petersburg Pasteur Institute, Street Mira, 14, 197101 St. Petersburg, Russia; (E.R.); (L.K.)
| | - Arina Kremleva
- Institute of Advanced Data Transfer Systems, ITMO University, Kronverkskiy Prospekt, 49, bldg. A, 197101 St. Petersburg, Russia;
| | - Svetlana Morozkina
- Center of Chemical Engineering, ITMO University, Kronverkskiy Prospekt, 49, bldg. A, 197101 St. Petersburg, Russia; (S.M.); (M.U.)
| | - Mayya Uspenskaya
- Center of Chemical Engineering, ITMO University, Kronverkskiy Prospekt, 49, bldg. A, 197101 St. Petersburg, Russia; (S.M.); (M.U.)
| | - Liudmila Kraeva
- Saint-Petersburg Pasteur Institute, Street Mira, 14, 197101 St. Petersburg, Russia; (E.R.); (L.K.)
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Abstract
The implementation of natural parks in cities is a current and controversial theme. Therefore, in Lake Buritis, which is a leisure area for the population of the city of Goiatuba, Goiás, Brazil, the quality of the water was analyzed, carrying out quantitative tests of the water samples at six different points between the source and the outlet of the lake that flows into the stream, Chico À Toa. Physical–chemical tests (turbidity, pH, alkalinity, electrical conductivity, color, nitrate and hardness parameters), microbiological tests for species identification, analysis of the antimicrobial susceptibility profile, metals analysis and Allium cepa test, were performed. The total coliforms number in water samples was higher than the maximum value established by Brazilian legislation, demonstrating high fecal contamination during the spring in samples from an artesian well. The bacterial diversity found was large and there were many pathogenic bacteria. The A. cepa test demonstrated a cytotoxic potential for water from the source and outlet of Buritis Lake. Statistical tests were applied to verify existing correlations between parameters. Among the analyzed data, the highest correlation was between the color and turbidity parameters and the grouping between the metals (lead, iron, cadmium and magnesium).
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Torres-Martínez R, Moreno-León A, García-Rodríguez YM, Hernández-Delgado T, Delgado-Lamas G, Espinosa-García FJ. The Tagetes lucida Cav. essential oil and the mixture of its main compounds are antibacterial and modulate antibiotic resistance in multi-resistant pathogenic bacteria. Lett Appl Microbiol 2022; 75:210-223. [PMID: 35419861 DOI: 10.1111/lam.13721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/24/2022] [Accepted: 04/05/2022] [Indexed: 11/26/2022]
Abstract
We evaluated an essential oil (EO) of Tagetes lucida Cav. and the mixture of its main compounds against multi-drug resistant bacteria. We found that EO and the partially reconstituted blend of its main components have antibacterial activity and inhibit antibiotic resistance (ampicillin, chloramphenicol, nalidixic acid, vancomycin, and imipenem) in strains of Staphylococcus aureus ATCC 29213 and Pseudomonas aeruginosa HIM-MR01. The T. lucida EO alone or added to the antibiotics showed antimicrobial activity against S. aureus and P. aeruginosa. The EO main bioactive compounds were methyl eugenol (46.15%), estragole (32.93%), linalool (2.48%), and geraniol (0.33%). The mixture (PREO) of those compounds at those proportions inhibited the growth of P. aeruginosa in 45% at 683.62 µg mL-1 and that of S. aureus in 51.7% at 39.04 µg mL-1 . The PREO had higher antibacterial and modulatory activities than the original EO. In conclusion, we overcame the unpredictability of EO activity (due to their natural variability) by determining which EO components inhibited bacteria and then producing a PREO to generate a reproducible mixture with predictable antibacterial and modulation of resistance activities. Thus, the PREO, and its components, show potential as alternatives to manage multidrug-resistant pathogens.
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Affiliation(s)
- Rafael Torres-Martínez
- Laboratorio de Ecología Química y Agroecología, Instituto de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, Ex Hacienda de San José de la Huerta 58190, Morelia, Michoacán, México
| | - Agustín Moreno-León
- Laboratorio de Ecología Química y Agroecología, Instituto de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, Ex Hacienda de San José de la Huerta 58190, Morelia, Michoacán, México
| | - Yolanda Magdalena García-Rodríguez
- Laboratorio de Ecología Química y Agroecología, Instituto de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, Ex Hacienda de San José de la Huerta 58190, Morelia, Michoacán, México
| | - Tzasná Hernández-Delgado
- Laboratorio de Bioactividad de Productos Naturales, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Tlalnepantla, 54090, Estado de México, México
| | - Guillermo Delgado-Lamas
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Francisco Javier Espinosa-García
- Laboratorio de Ecología Química y Agroecología, Instituto de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, Ex Hacienda de San José de la Huerta 58190, Morelia, Michoacán, México
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Clavería A, Delgado-Martín MV, Goicoechea-Castaño A, Iglesias-Moreno JM, García-Cendón C, Martín-Miguel MV, Villarino-Moure R, Barreiro-Arceiz C, Rey-Gómez-Serranillos I, Roca J. Interrupted Time Series Analysis of Pediatric Infectious Diseases and the Consumption of Antibiotics in an Atlantic European Region during the SARS-CoV-2 Pandemic. Antibiotics (Basel) 2022; 11:264. [PMID: 35203866 PMCID: PMC8868325 DOI: 10.3390/antibiotics11020264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 12/10/2022] Open
Abstract
The increasing concern about bacterial resistance has made the rational prescription of antibiotics even more urgent. The non-pharmacological measures established to reduce the impact of the SARS-CoV-2 pandemic have modified the epidemiology of pediatric infections and, consequently, the use of antibiotics. Interrupted time series (ITS) analyses are quasi-experimental studies that allow for the estimation of causal effects with observational data in "natural experiments", such as changes in health policies or pandemics. The effect of the SARS-CoV-2 pandemic on the incidence of infectious diseases and the use of antibiotics between 2018 and 2020 in the Health Area of Vigo (Galicia, Spain) was quantified and analyzed. This paper outlines a real-world data study with administrative records from primary care services provided for the pediatric population. The records were related to episodes classified as infectious by the International Classification of Primary Care (ICPC-2) and oral medication in the therapeutic subgroup J01, corresponding to antibiotics for systemic use, according to the World Health Organization's Anatomical Therapeutic Chemical (ATC) classification system. The records were classified according to incident episodes, age, dose per inhabitant, and year. Segmented regression models were applied using an algorithm that automatically identifies the number and position of the change points. During the SARS-CoV-2 pandemic, the number of infectious diseases being transmitted between individuals, through the air and through the fecal-oral route, significantly decreased, and a slight decrease in infections transmitted via other mechanisms (urinary tract infections) was also found. In parallel, during the months of the pandemic, there has been a marked and significant reduction in antibacterial agent utilization, mainly of penicillins, cephalosporins, and macrolides.
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Affiliation(s)
- Ana Clavería
- Galicia South Health Research Institute, Health Area of Vigo, Galician Health Service, 36201 Vigo, Spain;
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 08007 Barcelona, Spain;
| | | | - Ana Goicoechea-Castaño
- Sárdoma Health Center, Health Area of Vigo, Galician Health Service, 36214 Vigo, Spain; (A.G.-C.); (R.V.-M.)
| | - José Manuel Iglesias-Moreno
- Val Miñor Health Center, Health Area of Vigo, Galician Health Service, 36350 Vigo, Spain; (J.M.I.-M.); (C.G.-C.)
| | - Clara García-Cendón
- Val Miñor Health Center, Health Area of Vigo, Galician Health Service, 36350 Vigo, Spain; (J.M.I.-M.); (C.G.-C.)
| | - María Victoria Martín-Miguel
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 08007 Barcelona, Spain;
- Vigo Family and Community Medicine and Nursing Teaching Unit, Health Area of Vigo, Galician Health Service, 36201 Vigo, Spain
| | - Rita Villarino-Moure
- Sárdoma Health Center, Health Area of Vigo, Galician Health Service, 36214 Vigo, Spain; (A.G.-C.); (R.V.-M.)
| | | | | | - Javier Roca
- Network for Research on Chronicity, Primary Care, and Health Promotion (RICAPPS), 08007 Barcelona, Spain;
- Centro de Investigación e Tecnoloxía Matemática de Galicia (CITMAGA), Campus Vida, 15782 Santiago de Compostela, Spain
- Department of Statistics and Operational Research, University of Vigo, 36310 Vigo, Spain
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Milani AS, Froughreyhani M, Taghiloo H, Nouroloyouni A, Jafarabadi MA. The effect of antibiotic use on endodontic post-operative pain and flare-up rate: a systematic review with meta-analysis. Evid Based Dent 2022:10.1038/s41432-021-0205-z. [PMID: 35165442 DOI: 10.1038/s41432-021-0205-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/14/2021] [Indexed: 06/14/2023]
Abstract
Aim Antibiotics are widely used to prevent flare-ups after endodontic treatment of non-vital teeth. This systematic review assessed the effect of antibiotic administration on post-endodontic treatment pain and flare-up rate.Methods Five major databases including Web of Science, Cochrane Library, PubMed, Scopus and Embase were searched to identify randomised clinical trials (RCTs) published until September 2020. Retrieved papers were critically appraised using the revised Cochrane risk of bias tool (RoB 2). To reduce the clinical heterogeneity, the included studies were divided into two groups: studies on symptomatic non-vital teeth and studies on asymptomatic non-vital teeth. The primary outcomes were 'post-operative pain' and 'flare-up rate'. The data of included studies were statistically combined through meta-analysis using random-effect model. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach was used to assess the quality of evidence.Results Six RCTs involving two RCTs (N = 61) on symptomatic teeth and four RCTs (N = 310) on asymptomatic teeth were included. In two RCTs on asymptomatic teeth, prophylactic antibiotic had been used, while in the remaining two RCTs, antibiotics had been administered after treatment. Quantitative synthesis of the RCTs showed that antibiotic administration following endodontic treatment of symptomatic non-vital teeth has no effect on pain severity at 24 hours following treatment (weighted mean difference [WMD] = -0.03; 95% confidence interval [CI]: -0.53 to 0.47), and the use of antibiotics before endodontic treatment of asymptomatic non-vital teeth has no effect on flare-up rate (relative risk [RR] = 0.58; 95% CI: 0.22-1.54). The GRADE approach revealed that the overall quality of evidence on the topic is low.Conclusions The antibiotic administration following endodontic treatment of symptomatic non-vital teeth has no effect on pain severity at 24 hours following treatment. Also, prophylactic antibiotics are ineffective in reducing the flare-up rate following treatment of asymptomatic non-vital teeth. However, to evaluate the effect of post-treatment antibiotics on flare-up rate in asymptomatic non-vital teeth, more high-quality RCTs are needed.
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Affiliation(s)
- Amin Salem Milani
- Associate Professor of Endodontics, Research Centre for Evidence-Based Medicine (EBM), Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Froughreyhani
- Professor of Endodontics, Department of Endodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Taghiloo
- Assistant Professor, Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Tabriz University of Medical sciences, Tabriz, Iran
| | - Ahmad Nouroloyouni
- Assistant Professor of Endodontics, Department of Endodontics, Faculty of Dentistry, Ardebil University of Medical Sciences, Tabriz, Iran
| | - Mohammad Asghari Jafarabadi
- Department of Statistics and Epidemiology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
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Bokhtia RM, Girgis AS, Ibrahim TS, Rasslan F, Nossier ES, Barghash RF, Sakhuja R, Abdel-Aal EH, Panda SS, Al-Mahmoudy AMM. Synthesis, Antibacterial Evaluation, and Computational Studies of a Diverse Set of Linezolid Conjugates. Pharmaceuticals (Basel) 2022; 15:191. [PMID: 35215303 PMCID: PMC8880098 DOI: 10.3390/ph15020191] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 02/01/2023] Open
Abstract
The development of new antibiotics to treat multidrug-resistant (MDR) bacteria or possess broad-spectrum activity is one of the challenging tasks. Unfortunately, there are not many new antibiotics in clinical trials. So, the molecular hybridization approach could be an effective strategy to develop potential drug candidates using the known scaffolds. We synthesized a total of 31 diverse linezolid conjugates 3, 5, 7, 9, 11, 13, and 15 using our established benzotriazole chemistry with good yield and purity. Some of the synthesized conjugates exhibited promising antibacterial properties against different strains of bacteria. Among all the synthesized compounds, 5d is the most promising antibacterial agent with MIC 4.5 µM against S. aureus and 2.25 µM against B. subtilis. Using our experimental data pool, we developed a robust QSAR (R2 = 0.926, 0.935; R2cvOO = 0.898, 0.915; R2cvMO = 0.903, 0.916 for the S. aureus and B. subtilis models, respectively) and 3D-pharmacophore models. We have also determined the drug-like properties of the synthesized conjugates using computational tools. Our findings provide valuable insight into the possible linezolid-based antibiotic drug candidates.
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Affiliation(s)
- Riham M. Bokhtia
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (R.M.B.); (E.H.A.-A.); (A.M.M.A.-M.)
- Department of Chemistry and Physics, Augusta University, Augusta, GA 30912, USA
| | - Adel S. Girgis
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt; (A.S.G.); (R.F.B.)
| | - Tarek S. Ibrahim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Fatma Rasslan
- Department of Microbiology and Immunology, Faculty of Pharmacy (Girls), Al Azhar University, Cairo 11651, Egypt;
| | - Eman S. Nossier
- Department of Pharmaceutical Medicinal Chemistry and Drug Design, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo 11651, Egypt;
| | - Reham F. Barghash
- Department of Pesticide Chemistry, National Research Centre, Dokki, Giza 12622, Egypt; (A.S.G.); (R.F.B.)
| | - Rajeev Sakhuja
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333031, India;
| | - Eatedal H. Abdel-Aal
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (R.M.B.); (E.H.A.-A.); (A.M.M.A.-M.)
| | - Siva S. Panda
- Department of Chemistry and Physics, Augusta University, Augusta, GA 30912, USA
| | - Amany M. M. Al-Mahmoudy
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (R.M.B.); (E.H.A.-A.); (A.M.M.A.-M.)
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Nag D, Goel A, Padwad Y, Singh D. In Vitro Characterisation Revealed Himalayan Dairy Kluyveromyces marxianus PCH397 as Potential Probiotic with Therapeutic Properties. Probiotics Antimicrob Proteins 2022; 15:761-773. [PMID: 35040023 DOI: 10.1007/s12602-021-09874-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2021] [Indexed: 11/27/2022]
Abstract
Recently, probiotics have gained much attention for their roles against various clinical conditions. Obesity is a worldwide health problem that triggers various other major complications like type 2 diabetes (T2D) and cancers, including colorectal cancer (CRC). Earlier, Kluyveromyces marxianus PCH397 isolated from yak (Bos grunniens) milk has been characterised by us for its efficient β-galactosidase-producing ability, an important probiotic property. In the present study, yeast PCH397 has been evaluated for various parameters for its probiotic use. PCH397 exhibited tolerance to GI tract conditions (low pH, pancreatin, pepsin, and bile salts) with 78 to 99% survivability, possessed around 81% cell surface hydrophobicity, and 96% autoaggregation ability. The cell-free extract (CFE) and cell-free supernatant (CFS) from PCH397 improved insulin sensitisation by enhancing 2-NBDG (a glucose analogue) uptake in 3T3-L1 adipocytes, an approach useful in T2D treatment. They also exhibited lower intracellular lipid accumulation, triglyceride storage, and reactive oxygen species in differentiated adipocytes, indicating their anti-adipogenic ability. Also, CFE and intact cells (ICs) exhibited 73.33 ± 1.11% and 34.88 ± 2.80% DPPH radical scavenging activity, respectively. Furthermore, CFS showed a cytotoxic effect on SW-480 colorectal cancer (CRC) cells and induced the cell cycle phase arrest after 24 h of treatment. In conclusion, these results demonstrate that K. marxianus PCH397 could be used as a potential probiotic yeast and presents a therapeutic potential against obesity, T2D, and colon cancer.
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Affiliation(s)
- Deepika Nag
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176 061, India.,Department of Microbiology, Guru Nanak Dev University, Amritsar, Punjab, 143 005, India
| | - Abhishek Goel
- Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176 061, India.,Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India
| | - Yogendra Padwad
- Dietetics and Nutrition Technology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176 061, India. .,Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India.
| | - Dharam Singh
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh, 176 061, India. .,Academy of Scientific & Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India.
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Tayo A, Nyame K. Sepsis From Multisystem Infection With Multidrug-Resistant Raoultella ornithinolytica. Cureus 2022; 14:e20975. [PMID: 35154953 PMCID: PMC8816680 DOI: 10.7759/cureus.20975] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2022] [Indexed: 11/13/2022] Open
Abstract
Raoultella (R.) ornithinolytica is a gram-negative, encapsulated aerobe or facultative anaerobe belonging to the family Enterobacteriaceae. It is distinguished from other members in the family with a negative indole test, growth at 10oC, production of histamine, a negative D-melezitose test, and metabolism of ornithine. R. ornithinolytica is a versatile organism found in different habitats, including soil, water, and plants, as well as colonizing the human gastrointestinal tract and throat. It was considered to cause opportunistic infection in humans but is increasingly being implicated in infections in immunocompetent individuals. Raoultella ornithinolytica causes infection in different clinical settings. Sepsis from Raoultella ornithinolytica is increasing among humans, and it is considered an emerging infectious agent in both immunocompromised and immunocompetent people. There is an increasing level of antibiotic resistance among isolates with reports of multidrug resistance. We report the case of a 95-year-old man with multidrug-resistant R. ornithinolytica multisystem infection and review the literature.
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A One-Week Course of Levofloxacin/Dexamethasone Eye Drops: A Review on a New Approach in Managing Patients After Cataract Surgery. Ophthalmol Ther 2021; 11:101-111. [PMID: 34936061 PMCID: PMC8770779 DOI: 10.1007/s40123-021-00435-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/17/2021] [Indexed: 01/24/2023] Open
Abstract
A new fixed-dose combination of dexamethasone and levofloxacin eye drops has recently been approved for the prevention and treatment of inflammation, and the prevention of infection associated with cataract surgery in adults. This combination has been developed to respond to a series of unmet needs in the practical management of patients undergoing cataract surgery. Namely, despite updated guidelines, many ophthalmologists employ protocols mainly based on their personal experience. As a result, the choice of drugs, treatment duration, and drug association is not evidence-based medicine (EBM)-oriented. In addition, antibiotic resistance may occur since antibiotics are used for an extended length of time, even with tapering. Corticosteroids are also prescribed for prolonged periods, frequently without follow-up. Therefore, patient adherence to postsurgical self-care is low, and mainly affects older patients who are the majority undergoing cataract surgery. In both rabbit and human trials, it has been demonstrated that both active ingredients penetrate the ocular system without pharmacokinetic interaction between the two. The concentrations of both ingredients in aqueous humor after their ocular instillation are high enough at the site of action to carry out their expected potent anti-inflammatory and antibiotic activity. Tested in a pivotal study aimed at investigating efficacy and safety of the intended indication, the mixture/compound was non-inferior to a 2-week treatment with dexamethasone/tobramycin in preventing or reducing inflammation and in preventing infection when administered for 1 week, followed by the administration of dexamethasone alone for another week. The outcomes obtained by this study suggest that a 1-week course of levofloxacin/dexamethasone eye drops is sufficient to resolve inflammation and prevent infection in patients undergoing cataract surgery. In addition, this study underlines that a follow-up visit after 1 week allows for a decision about whether to stop or continue a treatment in patients still experiencing symptoms or inflammation. In conclusion, this new dose combination could represent a turning point in managing patients after cataract surgery, while mostly avoiding antibiotic resistance and improving treatment adherence.
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[Antibiotic consumption in primary care in the adult population of Asturias during 2014-2020 period]. Aten Primaria 2021; 54:102261. [PMID: 34922065 PMCID: PMC8688879 DOI: 10.1016/j.aprim.2021.102261] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/03/2021] [Accepted: 11/22/2021] [Indexed: 11/20/2022] Open
Abstract
Objetivo Estudiar la evolución del consumo de antibióticos en población adulta en el ámbito de Atención Primaria (AP) del Servicio de Salud del Principado de Asturias (SESPA) durante 2014-2020. Diseño Estudio observacional retrospectivo. Emplazamiento AP del SESPA. Participantes Población de la base de datos de Tarjeta Sanitaria Individual. Intervenciones Se recogieron datos de prescripción de antibióticos, realizada en las consultas de medicina de familia, dispensados en las oficinas de farmacia con cargo al SESPA. Se analizaron variables de uso y consumo de antibióticos mediante modelos de regresión lineal. Mediciones principales Prevalencia de uso de antibióticos (porcentaje población); tasa de consumo de antibióticos de uso sistémico (DTD), consumo relativo de antibióticos de espectro reducido (porcentaje DDD). Resultados La prevalencia media del uso de antibióticos del periodo 2014-2019 fue de 32,2% y 23,9% en 2020. La tasa de consumo de antibióticos de uso sistémico pasó de 21,4 DTD en 2014 a 12,7 DTD en 2020. El consumo de antibióticos de espectro reducido se mantuvo estable (19,4% DDD en 2014 y 19,3% DDD en 2020) (IC95: -0,10, 0,26). En el periodo de marzo a diciembre de 2020, el consumo de antibióticos se redujo un 28,6% respecto al mismo periodo de 2019. Conclusiones En 2014-2020 el consumo de antibióticos disminuyó, especialmente a partir de la pandemia por COVID-19, con estabilización del consumo de antibióticos de espectro reducido respecto al total. Existe variabilidad en el consumo por subgrupos terapéuticos.
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Leandro MKDNS, Moura JVB, Freire PDTC, Vega ML, Lima CDL, Hidalgo ÁA, de Araújo ACJ, Freitas PR, Paulo CLR, de Sousa AK, Rocha JE, Leandro LMG, da Silva ROM, Cruz-Martins N, Coutinho HDM. Characterization and Evaluation of Layered Bi 2WO 6 Nanosheets as a New Antibacterial Agent. Antibiotics (Basel) 2021; 10:1068. [PMID: 34572651 PMCID: PMC8468918 DOI: 10.3390/antibiotics10091068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/22/2021] [Accepted: 08/31/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Pathogenic microorganisms are causing increasing cases of mortality and morbidity, along with alarming rates of ineffectiveness as a result of acquired antimicrobial resistance. Bi2WO6 showed good potential to be used as an antibacterial substance when exposed to visible light. This study demonstrates for the first time the dimension-dependent antibacterial activity of layered Bi2WO6 nanosheets. Materials and methods: The synthesized layered Bi2WO6 nanosheets were prepared by the hydrothermal method and characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), and Raman and Fourier transform infrared spectroscopy (FTIR). Antibacterial and antibiotic-modulation activities were performed in triplicate by the microdilution method associated with visible light irradiation (LEDs). Results: Bi2WO6 nanosheets were effective against all types of bacteria tested, with MIC values of 256 μg/mL against Escherichia coli standard and resistant strains, and 256 μg/mL and 32 μg/mL against Staphylococcus aureus standard and resistant strains, respectively. Two-dimensional (2D) Bi2WO6 nanosheets showed antibacterial efficiency against both strains studied without the presence of light. Conclusions: Layered Bi2WO6 nanosheets revealed dimension-dependent antibacterial activity of the Bi2WO6 system.
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Affiliation(s)
- Maria Karollyna do Nascimento Silva Leandro
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
- Department of Biomedicine, University Center Dr. Leão Sampaio, Juazeiro do Norte 63040-005, Brazil; (L.M.G.L.); (R.O.M.d.S.)
| | - João Victor Barbosa Moura
- Department of Physics, Science and Technology Center, Federal University of Maranhão, São Luís 65085-580, Brazil;
| | | | - Maria Leticia Vega
- Department of Physics, Campus Ministro Petrônio Portella, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.); (C.d.L.L.); (Á.A.H.)
| | - Cleânio da Luz Lima
- Department of Physics, Campus Ministro Petrônio Portella, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.); (C.d.L.L.); (Á.A.H.)
| | - Ángel Alberto Hidalgo
- Department of Physics, Campus Ministro Petrônio Portella, Federal University of Piauí, Teresina 64049-550, Brazil; (M.L.V.); (C.d.L.L.); (Á.A.H.)
| | - Ana Carolina Justino de Araújo
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
| | - Priscilla Ramos Freitas
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
| | - Cicera Laura Roque Paulo
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
| | - Amanda Karine de Sousa
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
- Department of Biomedicine, University Center Dr. Leão Sampaio, Juazeiro do Norte 63040-005, Brazil; (L.M.G.L.); (R.O.M.d.S.)
| | - Janaina Esmeraldo Rocha
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
| | - Lívia Maria Garcia Leandro
- Department of Biomedicine, University Center Dr. Leão Sampaio, Juazeiro do Norte 63040-005, Brazil; (L.M.G.L.); (R.O.M.d.S.)
| | - Rakel Olinda Macedo da Silva
- Department of Biomedicine, University Center Dr. Leão Sampaio, Juazeiro do Norte 63040-005, Brazil; (L.M.G.L.); (R.O.M.d.S.)
| | - Natália Cruz-Martins
- Faculty of Medicine, University of Porto, Alameda Prof. Hernani Monteiro, 4200-319 Porto, Portugal
- Institute for research and Innovation in Health (i3S), University of Porto, Rua Alfredo Allen, 4200-319 Porto, Portugal
- Institute of Research and Advanced Training in Health Sciences and Technologies (CESPU), Rua Central de Gandra, 1317, 4585-116 Gandra, Portugal
| | - Henrique Douglas Melo Coutinho
- Department of Biological Chemistry, Regional University of Cariri, Crato 63105-000, Brazil; (M.K.d.N.S.L.); (A.C.J.d.A.); (P.R.F.); (C.L.R.P.); (A.K.d.S.); (J.E.R.)
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Álvarez-Martínez FJ, Barrajón-Catalán E, Herranz-López M, Micol V. Antibacterial plant compounds, extracts and essential oils: An updated review on their effects and putative mechanisms of action. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 90:153626. [PMID: 34301463 DOI: 10.1016/j.phymed.2021.153626] [Citation(s) in RCA: 127] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/03/2021] [Accepted: 06/10/2021] [Indexed: 05/20/2023]
Abstract
BACKGROUND Antibiotic-resistant bacteria pose a global health threat. Traditional antibiotics can lose their effectiveness, and the development of novel effective antimicrobials has become a priority in recent years. In this area, plants represent an invaluable source of antimicrobial compounds with vast therapeutic potential. PURPOSE To review the full possible spectrum of plant antimicrobial agents (plant compounds, extracts and essential oils) discovered from 2016 to 2021 and their potential to decrease bacterial resistance. Their activities against bacteria, with special emphasis on multidrug resistant bacteria, mechanisms of action, possible combinations with traditional antibiotics, roles in current medicine and future perspectives are discussed. METHODS Studies focusing on the antimicrobial activity of compounds of plant origin and their mechanism of action against bacteria were identified and summarized, including contributions from January 2016 until January 2021. Articles were extracted from the Medline database using PubMed search engine with relevant keywords and operators. RESULTS The search yielded 11,689 articles from 149 countries, of which 101 articles were included in this review. Reports from 41 phytochemicals belonging to 20 families were included. Reports from plant extracts and essential oils from 39 plant species belonging to 17 families were also included. Polyphenols and terpenes were the most active phytochemicals studied, either alone or as a part of plant extracts or essential oils. Plasma membrane disruption was the most common mechanism of antimicrobial action. Number and position of phenolic hydroxyl groups, double bonds, delocalized electrons and conjugation with sugars in the case of flavonoids seemed to be crucial for antimicrobial capacity. Combinations of phytochemicals with beta-lactam antibiotics were the most studied, and the inhibition of efflux pumps was the most common synergistic mechanism. CONCLUSION In recent years, terpenes, flavones, flavonols and some alkaloids and phenylpropanoids, either isolated or as a part of extracts, have shown promising antimicrobial activity, being membrane disruption their most common mechanism. However, their utilization as appropriate antimicrobials need to be boosted by means of new omics technologies and network pharmacology to find the most effective combinations among them or in combination with antibiotics.
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Affiliation(s)
- F J Álvarez-Martínez
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain
| | - E Barrajón-Catalán
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain.
| | - M Herranz-López
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain
| | - V Micol
- Instituto de Biología Molecular y Celular (IBMC) and Instituto de Investigación, Desarrollo e Innovación en Biotecnología Sanitaria de Elche (IDiBE), Universidad Miguel Hernández (UMH), 03202 Elche, Spain; CIBER: CB12/03/30038, Fisiopatología de la Obesidad y la Nutrición, CIBERobn, Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
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Pilar Cara MD, Judith Mar D, Cón EA, Leó OD, Viveros-Va E. Antibacterial and Enzyme Inhibition Capacities of Peruvian Lichens: Xanthoparmelia tasmanica and Flavopunctelia flaventior. INT J PHARMACOL 2021. [DOI: 10.3923/ijp.2021.606.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Mao F, Bao Y, Wong NK, Huang M, Liu K, Zhang X, Yang Z, Yi W, Shu X, Xiang Z, Yu Z, Zhang Y. Large-Scale Plasma Peptidomic Profiling Reveals a Novel, Nontoxic, Crassostrea hongkongensis-Derived Antimicrobial Peptide against Foodborne Pathogens. Mar Drugs 2021; 19:420. [PMID: 34436258 PMCID: PMC8399951 DOI: 10.3390/md19080420] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 07/22/2021] [Accepted: 07/22/2021] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial peptides are a fundamental component of mollusks' defense systems, though they remain a thinly investigated subject. Here, infection by Vibrio parahemolyticus triggered a significant increase in antimicrobial activity in oyster plasma. By using PBS-challenged oysters as a control, plasma peptides from immunologically challenged oysters were subjected to peptidomic profiling and in silico data mining to identify bioactive peptides. Thirty-five identified plasma peptides were up-regulated post infection, among which, six up-regulated peptides (URPs) showed a relatively high positive charge. URP20 was validated with significant antibacterial activity. Virtually, URP20 triggered aggregation of bacterial cells, accompanied by their membrane permeabilization. Interestingly, URP20 was found to be active against Gram-positive and Gram-negative foodborne pathogens as well as Candida albicans, with no cytotoxicity to mammalian cells and mice. Our study provides the first large-scale plasma peptidomic dataset that identifies novel bioactive peptides in marine mollusks. Further exploration of peptide diversity in marine invertebrates should prove a fruitful pursuit for designing novel AMPs with broad applications.
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Affiliation(s)
- Fan Mao
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Yongbo Bao
- Zhejiang Key Laboratory of Aquatic Germplasm Resources, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, China;
| | - Nai-Kei Wong
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Department of Pharmacology, Medical College, Shantou University, Shantou 515063, China
| | - Minwei Huang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Kunna Liu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Xiangyu Zhang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Zhuo Yang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Wenjie Yi
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Xiao Shu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Zhiming Xiang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Ziniu Yu
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
| | - Yang Zhang
- CAS Key Laboratory of Tropical Marine Bio-Resources and Ecology and Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou 510301, China; (F.M.); (N.-K.W.); (M.H.); (K.L.); (X.Z.); (Z.Y.); (W.Y.); (X.S.); (Z.X.)
- Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 510301, China
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Li C, Chen C, Zhao J, Tan M, Zhai S, Wei Y, Wang L, Dai T. Electrospun Fibrous Membrane Containing a Cyclodextrin Covalent Organic Framework with Antibacterial Properties for Accelerating Wound Healing. ACS Biomater Sci Eng 2021; 7:3898-3907. [PMID: 34279078 DOI: 10.1021/acsbiomaterials.1c00648] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Skin wounds are usually accompanied by bacterial infections and inflammations, leading to delayed wound healing, which remain a great challenge in clinical treatment. Therefore, it is of great significance to develop wound dressings that inhibit bacterial infections to accelerate wound healing. Herein, we reported the fabrication of inclusion complex (a β-cyclodextrin covalent organic framework loaded with enrofloxacin and flunixin meglumine)-incorporated electrospun thermoplastic polyurethane fibers (named ENR-FM-COF-TPU) via electrospinning. The obtained ENR-FM-COF-TPU fibrous membrane exhibited excellent physicochemical and biological properties such as uniform and stable morphology, proper hydrophobicity, good water uptake capacity, and admirable biocompatibility, which showed perfect behavior as a wound dressing. In addition, the ENR-FM-COF-TPU membrane achieved a sustained drug release of enrofloxacin and flunixin meglumine and displayed powerful antibacterial activity against Staphylococcus aureus and Escherichia coli with 99% inhibitory efficiency for 50 h. More importantly, the wound healing therapy effect was investigated using a full-thickness skin defect model of mice. It suggested that the ENR-FM-COF-TPU membrane could significantly accelerate and enhance wound healing through downregulating inflammatory cytokines (IL-1β and TNF-α) and increasing the expression of growth factors (VEGF and EGF). Due to its excellent properties, the ENR-FM-COF-TPU membrane may have promising potential in wound healing applications.
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Affiliation(s)
- Congcong Li
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
| | - Chaoxi Chen
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu 610041, China
| | - Juebo Zhao
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
| | - Min Tan
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
| | - Shuo Zhai
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
| | - Yucai Wei
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China
| | - Lu Wang
- College of Animal & Veterinary Sciences, Southwest Minzu University, Chengdu 610041, China.,Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Chengdu 610041, China
| | - Tao Dai
- College of Chemistry & Environment, Southwest Minzu University, Chengdu 610041, China
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Dos Santos Ramos MA, de Toledo LG, Spósito L, Marena GD, de Lima LC, Fortunato GC, Araújo VHS, Bauab TM, Chorilli M. Nanotechnology-based lipid systems applied to resistant bacterial control: A review of their use in the past two decades. Int J Pharm 2021; 603:120706. [PMID: 33991597 DOI: 10.1016/j.ijpharm.2021.120706] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 02/07/2023]
Abstract
The rate of infections caused by resistant bacteria to the antimicrobials available for human use grows exponentially every year, which generates major impacts on human health and the world economy. In the last two decades, human beings can witness the expressive increase in the Science and Technology worldwide, and areas such as Health Sciences have benefited from these advances in favor of human health, such as the advent of Pharmaceutical Nanotechnology as an important approach applied for bacterial infections treatment with resistance profile to available antibiotics. This review of the scientific literature brings the applicability of nanotechnology-based lipid systems as an innovative tool in the improvement of bacterial infections treatment. Important studies involving the use of liposomes, solid lipid nanoparticles, nanostructured lipid carriers, nanoemulsions, microemulsions and lipid nanocapsules were verified in the period from 2000 to 2020, where important scientific results were found and will serve as a basis for the use of these systems to remain in constant updating. This manuscript shows the use of these drug delivery systems as potential vehicles for antibacterial compounds, which opens a new hope in the complement of the antibacterial therapeutic arsenal. Important studies developed in the last 20 years are present in this review, and thus guarantees an update on the use of these drug delivery systems for researchers from different areas of Health Sciences.
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Affiliation(s)
- Matheus Aparecido Dos Santos Ramos
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil.
| | - Luciani Gaspar de Toledo
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Larissa Spósito
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Gabriel Davi Marena
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Laura Caminitti de Lima
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Giovanna Capaldi Fortunato
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Victor Hugo Sousa Araújo
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Taís Maria Bauab
- Department of Biological Sciences, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil
| | - Marlus Chorilli
- Department of Drug and Medicines, São Paulo State University (UNESP), School of Pharmaceutical Sciences, Campus Araraquara, 14.800-903 São Paulo State, Brazil.
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Marta-Costa A, Miranda C, Silva V, Silva A, Martins Â, Pereira JE, Maltez L, Capita R, Alonso-Calleja C, Igrejas G, Poeta P. Survey of the Knowledge and Use of Antibiotics among Medical and Veterinary Health Professionals and Students in Portugal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:2753. [PMID: 33803226 PMCID: PMC7967476 DOI: 10.3390/ijerph18052753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/01/2021] [Accepted: 03/03/2021] [Indexed: 12/24/2022]
Abstract
Antimicrobial resistance (AMR) is an urgent and complex problem worldwide, exacerbated by the frequently inappropriate use of antibiotics. The purpose of this study was to survey the levels of knowledge and awareness about antibiotic use and stewardship, among human and veterinary health professionals or students in Portugal, and the associations between antibiotic knowledge factors and socio-professional groups. In cross-sectional survey design, a total of 449 online structured questionnaires were completed in 2018-2019. The statistical analysis was performed dividing the respondents into four groups, A (undergraduate students), B (PhD students and researchers), C (lecturers), and D (technicians and other occupation). Among all respondents, 17% (n = 75) revealed some gap in knowledge about antibiotic resistance and the antibiotics that should be administered for different infection types (bacterial, viral, or fungal). Of the 159 pet owners among the respondents, only half had administered antibiotics to their animal and 64% (n = 102) knew that veterinary prescription is mandatory when administering antibiotics to animals. All groups statistically agreed that the AMR is a major public health problem and the antibiotics should be administrated for bacterial infections and used until the whole pack has been finished (p = 0.00). As expected, only groups B and C demonstrated a higher level of knowledge to recognize the antibiotic name and their active ingredient than undergraduate students (p = 0.00). About the antibiotic use on pets, only group B was statistically significant to no used antibiotics on their pets (p = 0.00). However, groups A, C, and D were statistically significant for the knowledge about the mandatory veterinarian prescription and groups C and D were significantly statistics for fully aware of the transmission of bacteria between animals and humans. In conclusion, in matters related to AMR, the behavior, education, and training of the general public and health professionals, including those who prescribe antibiotics for humans and animals, need to be improved.
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Affiliation(s)
- Ana Marta-Costa
- Centre for Transdisciplinary Development Studies (CETRAD), University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal;
| | - Carla Miranda
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Aflto Douro, 5000-801 Vila Real, Portugal; (C.M.); (V.S.); (A.S.); (J.E.P.); (L.M.)
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, 2829-516 Lisboa, Portugal;
| | - Vanessa Silva
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Aflto Douro, 5000-801 Vila Real, Portugal; (C.M.); (V.S.); (A.S.); (J.E.P.); (L.M.)
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, 2829-516 Lisboa, Portugal;
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Adriana Silva
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Aflto Douro, 5000-801 Vila Real, Portugal; (C.M.); (V.S.); (A.S.); (J.E.P.); (L.M.)
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, 2829-516 Lisboa, Portugal;
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Ângela Martins
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
- Department of Zootechnics, University of Trás-os-Montes and Alto Douro (UTAD), 5000-801 Vila Real, Portugal
| | - José Eduardo Pereira
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Aflto Douro, 5000-801 Vila Real, Portugal; (C.M.); (V.S.); (A.S.); (J.E.P.); (L.M.)
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Luis Maltez
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Aflto Douro, 5000-801 Vila Real, Portugal; (C.M.); (V.S.); (A.S.); (J.E.P.); (L.M.)
- Animal and Veterinary Research Center (CECAV), University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal;
| | - Rosa Capita
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain; (R.C.); (C.A.-C.)
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Carlos Alonso-Calleja
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain; (R.C.); (C.A.-C.)
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Gilberto Igrejas
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, 2829-516 Lisboa, Portugal;
- Department of Genetics and Biotechnology, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
- Functional Genomics and Proteomics Unit, University of Trás-os-Montes and Alto Douro, 5000-801 Vila Real, Portugal
| | - Patrícia Poeta
- Microbiology and Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes and Aflto Douro, 5000-801 Vila Real, Portugal; (C.M.); (V.S.); (A.S.); (J.E.P.); (L.M.)
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, 2829-516 Lisboa, Portugal;
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Guo C, Li J, Lee W, Li H, Shen J, Zhang B. A novel peptide identified from skin secretions of Bombina maxima possesses LPS-neutralizing activity. Biochem Biophys Res Commun 2021; 550:107-112. [PMID: 33689880 DOI: 10.1016/j.bbrc.2021.02.131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 02/24/2021] [Indexed: 11/25/2022]
Abstract
Lipopolysaccharide (LPS) is a major pathogenic factor in endotoxin shock or sepsis. Most antibiotics have little clinical anti-endotoxin activity, but some antimicrobial peptides (AMPs) have been shown to be effective in blocking LPS. We identified a novel peptide from the skin secretions of Bombina maxima (B. _maxima) by challenging the skin of frogs with an LPS solution. Peptide 2 has an amino acid sequence of LVGKLLKGAVGDVCGLLPIC. Peptide 2 possesses low hemolytic activity, low cytotoxicity against RAW 264.7 cells, and strong anti-inflammatory activity. Moreover, peptide 2 plays an anti-inflammatory role by inhibiting inflammatory cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6). A biolayer interferometry (BLI) assay indicated that peptide 2 binds to LPS with strong affinity and that this interaction has an affinity constant (KD) value of 1.05 × 10-9 M. A survival study showed that peptide 2 possesses potent LPS-neutralizing activity to protect LPS-treated mice from death. In conclusion, we have identified a potent peptide with LPS neutralizing activity, which lays a foundation for future research and development.
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Affiliation(s)
- Caifen Guo
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Jian Li
- Department of Sports Medicine, Guizhou Province Osteological Hospital, Guiyang, 550002, Guizhou, China
| | - WenHui Lee
- Key Laboratory of Animal Models and Human Disease Mechanisms/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China
| | - Hao Li
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China
| | - Jihong Shen
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China.
| | - Baiyu Zhang
- Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, Yunnan, China.
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Miranda C, Silva V, Igrejas G, Poeta P. Impact of European pet antibiotic use on enterococci and staphylococci antimicrobial resistance and human health. Future Microbiol 2021; 16:185-201. [PMID: 33491483 DOI: 10.2217/fmb-2020-0119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Due to the inappropriate use of antibiotics described in both human and veterinary medicine, there is emerging evidence of antimicrobial-resistant organisms isolated from humans and pets, forming a multifaceted problem. Although the true magnitude of antimicrobial resistance in pets and other animals, as well as humans, are not fully known; pets, in particular dogs and cats, can contribute to the spread of antimicrobial resistance due to close contact with humans and their status as a family member in urban households. This review summarizes and highlights the current data concerning the antibiotic use on pets, and the European distribution of the increasing prevalence of multiresistant bacterial pathogens, such as enterococci and methicillin-resistant staphylococci on pets, as well as its implications for public health.
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Affiliation(s)
- Carla Miranda
- Microbiology & Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes & Alto Douro, Vila Real 5001-801, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes & Alto Douro, Vila Real, 5001-801, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, Lisboa, 2829-516, Portugal
| | - Vanessa Silva
- Microbiology & Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes & Alto Douro, Vila Real 5001-801, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, Lisboa, 2829-516, Portugal.,Department of Genetics & Biotechnology, University of Trás-os-Montes & Alto Douro, Vila Real, 5001-801, Portugal.,Functional Genomics & Proteomics Unit, University of Trás-os-Montes & Alto Douro, Vila Real, 5001-801, Portugal
| | - Gilberto Igrejas
- Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, Lisboa, 2829-516, Portugal.,Department of Genetics & Biotechnology, University of Trás-os-Montes & Alto Douro, Vila Real, 5001-801, Portugal.,Functional Genomics & Proteomics Unit, University of Trás-os-Montes & Alto Douro, Vila Real, 5001-801, Portugal
| | - Patrícia Poeta
- Microbiology & Antibiotic Resistance Team (MicroART), Department of Veterinary Sciences, University of Trás-os-Montes & Alto Douro, Vila Real 5001-801, Portugal.,Department of Veterinary Sciences, University of Trás-os-Montes & Alto Douro, Vila Real, 5001-801, Portugal.,Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), University NOVA of Lisboa, Caparica, Lisboa, 2829-516, Portugal
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50
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Eticha EM, Gemechu WD. Adherence to Guidelines for Assessment and Empiric Antibiotics Recommendations for Community-Acquired Pneumonia at Ambo University Referral Hospital: Prospective Observational Study. Patient Prefer Adherence 2021; 15:467-473. [PMID: 33658770 PMCID: PMC7920623 DOI: 10.2147/ppa.s295118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 02/16/2021] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE The high incidence and substantial morbidity and mortality associated with community-acquired pneumonia necessitate an accurate assessment and appropriate management of patients. This observational prospective study aimed to evaluate the physicians' adherence to the Ethiopian Standard Treatment Guideline for assessment and an empiric antibiotic selection for Community-acquired pneumonia. RESULTS The study indicated that the pneumonia severity assessment tool, CURB-65 score, was never used. Of 141 patients referred to an admitting diagnosis of severe community-acquired pneumonia, only 50 were subsequently found to satisfy the guideline criteria, over-diagnosis of 41.9%. Large proportions of the participants (130, 60%) were prescribed antibiotics in the last three months. The most commonly prescribed single antibiotic was Ceftriaxone (47, 21.7%), while ceftriaxone plus azithromycin was the most common combination, 110 (50.7%). In general, the extent of non-adherence to the national guideline for the use of antibiotics was 36.4%. In conclusion, the use of CRB65 scores was uncommon in the study setting. Poor adherence to Ethiopian Standard Treatment Guideline regarding the decision of hospital admission (41.9%) and the antimicrobial selection (36.4%) was determined.
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Affiliation(s)
- Endalkachew Mekonnen Eticha
- Ambo University, College of Medicine and Health Science, School of Pharmacy, Ambo, Ethiopia
- Correspondence: Endalkachew Mekonnen Eticha Email
| | - Workineh Diriba Gemechu
- Jigjiga University, College of Medicine and Health Science, School of Medicine, Jigjiga, Ethiopia
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