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Qin X, Tian R, Wang B, Yang H, Chen J, Wang X, Zhou J, Chen Q, Tian J, Yang YW. Metal-Phenolic Nanocapsules with Photothermal Antibacterial and Ros Scavenging Ability for Diabetic Wound Healing. Adv Healthc Mater 2024; 13:e2303604. [PMID: 38165358 DOI: 10.1002/adhm.202303604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/23/2023] [Indexed: 01/03/2024]
Abstract
The presence of bacteria in diabetic wounds not only leads to the formation of biofilms but also triggers oxidative stress and inflammatory responses, which hinder the wound-healing process. Therefore, it is imperative to formulate a comprehensive strategy that can proficiently eliminate bacteria and enhance the wound microenvironment. Herein, this work develops multifunctional metal-phenolic nanozymes (TA-Fe/Cu nanocapsules), wherein the one-pot coordination of tannic acid (TA)and Fe3+/Cu2+ using a self-sacrificial template afforded hollow nanoparticles (NPs) with exceptional photothermal and reactive oxygen species scavenging capabilities. After photothermal disruption of the biofilms, TA-Fe/Cu NPs autonomously capture bacteria through hydrogen bonding interactions with peptidoglycans (the bacterial cell wall component), ultimately bolstering the bactericidal efficacy. Furthermore, these NPs exhibit peroxidase-like enzymatic activity, efficiently eliminating surplus hydrogen peroxide in the vicinity of the wound and mitigating inflammatory responses. As the wound transitions into the remodeling phase, the presence of Cu2+ stimulates vascular migration and regeneration, expediting the wound-healing process. This study innovatively devises a minimalist approach to synthesize multifunctional metal-phenolic nanozymes integrating potent photothermal antibacterial activity, bacterial capture, anti-inflammatory, and angiogenesis properties, showcasing their great potential for diabetic wound treatment.
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Affiliation(s)
- Xudong Qin
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Rui Tian
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Bo Wang
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Haixia Yang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Junyang Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xin Wang
- College of Chemistry, China-Japan Union Hospital of Jilin University, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Jianliang Zhou
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Qing Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jian Tian
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (MOE), School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Ying-Wei Yang
- College of Chemistry, China-Japan Union Hospital of Jilin University, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
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Song N, Yu Y, Zhang Y, Wang Z, Guo Z, Zhang J, Zhang C, Liang M. Bioinspired Hierarchical Self-Assembled Nanozyme for Efficient Antibacterial Treatment. Adv Mater 2024; 36:e2210455. [PMID: 36854170 DOI: 10.1002/adma.202210455] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Along with the rapid development and ever-deepening understanding of nanoscience and nanotechnology, nanomaterials hold promise to mimic the highly evolved biological exquisite nanostructures and sophisticated functions. Here, inspired by the ubiquitous antibacterial nanostructures on the wing surfaces of some insects, a NiCo2 O4 nanozyme with self-adaptive hierarchical nanostructure is developed that can capture bacteria of various morphotypes via the physico-mechanical interaction between the nanostructure and bacteria. Moreover, the developed biomimetic nanostructure further exhibits superior peroxidase-like catalytic activity, which can catalytically generate highly toxic reactive oxygen species that disrupt bacterial membranes and induce bacterial apoptosis. Therefore, the mechano-catalytic coupling property of this NiCo2 O4 nanozyme allows for an extensive and efficient antibacterial application, with no concerns of antimicrobial resistance. This work suggests a promising strategy for the rational design of advanced antibacterial materials by mimicking biological antibiosis.
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Affiliation(s)
- Ningning Song
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yue Yu
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Yinuo Zhang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhengdi Wang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Zhanjun Guo
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Jianlin Zhang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Changbin Zhang
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Minmin Liang
- Experimental Center of Advanced Materials, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China
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Sun T, Kang L, Zhao H, Zhao Y, Gu Y. Photoacid Generators for Biomedical Applications. Adv Sci (Weinh) 2024; 11:e2302875. [PMID: 38039443 PMCID: PMC10837391 DOI: 10.1002/advs.202302875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 10/26/2023] [Indexed: 12/03/2023]
Abstract
Photoacid generators (PAGs) are compounds capable of producing hydrogen protons (H+ ) upon irradiation, including irreversible and reversible PAGs, which have been widely studied in photoinduced polymerization and degradation for a long time. In recent years, the applications of PAGs in the biomedical field have attracted more attention due to their promising clinical value. So, an increasing number of novel PAGs have been reported. In this review, the recent progresses of PAGs for biomedical applications is systematically summarized, including tumor treatment, antibacterial treatment, regulation of protein folding and unfolding, control of drug release and so on. Furthermore, a concept of water-dependent reversible photoacid (W-RPA) and its antitumor effect are highlighted. Eventually, the challenges of PAGs for clinical applications are discussed.
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Affiliation(s)
- Tianzhen Sun
- School of Medical TechnologyBeijing Institute of TechnologyNo. 5 South Street, ZhongguancunHaidian DistrictBeijing100081China
| | - Lin Kang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of SciencesNo. 29 Zhongguancun East Road, Haidian DistrictBeijing100190China
- University of Chinese Academy of SciencesNo. 19A Yuquan RoadBeijing100049China
| | - Hongyou Zhao
- School of Medical TechnologyBeijing Institute of TechnologyNo. 5 South Street, ZhongguancunHaidian DistrictBeijing100081China
| | - Yuxia Zhao
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of SciencesNo. 29 Zhongguancun East Road, Haidian DistrictBeijing100190China
- University of Chinese Academy of SciencesNo. 19A Yuquan RoadBeijing100049China
| | - Ying Gu
- Department of Laser MedicineThe First Medical CentreChinese PLA General HospitalNo. 28 Fuxing Road, Haidian DistrictBeijing100853China
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Song P, Hao Y, Lin D, Jin Y, Lin J. Evaluation of the antibacterial effect of Epigallocatechin gallate on the major pathogens of canine periodontal disease and therapeutic effects on periodontal disease mice. Front Microbiol 2024; 14:1329772. [PMID: 38249491 PMCID: PMC10797024 DOI: 10.3389/fmicb.2023.1329772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/07/2023] [Indexed: 01/23/2024] Open
Abstract
Background Periodontal disease (PD) is a prevalent oral affliction in canines, with limited therapeutic options available. The potential transmission of oral bacteria from canines to humans through inter-species contact poses a risk of zoonotic infection. Epigallocatechin gallate (EGCG), the principal catechin in green tea polyphenols, exhibits antibacterial properties effective against human PD. Given the clinical parallels between canine and human PD, this study explores the feasibility of employing EGCG as a therapeutic agent for canine PD. Methods and results Initially, a survey and statistical analysis of bacterial infection data related to canine PD in China were conducted. Subsequently, the primary pathogenic bacteria of canine PD were isolated and cultivated, and the in vitro antibacterial efficacy of EGCG was assessed. Furthermore, verify the therapeutic effect of EGCG on a mouse PD model in vivo. The high-throughput 16S rRNA gene sequencing identified Porphyromonas, Fusobacterium, Treponema, Moraxella, and Capnocytophaga as the genera that distinguishing PD from healthy canines' gingival crevicular fluid (GCF) samples in China. The anaerobic culture and drug susceptibility testing isolated a total of 92 clinical strains, representing 22 species, from 72 canine GCF samples, including Porphyromonas gulae, Prevotella intermedia, Porphyromonas macacae, etc. The minimum inhibitory concentration (MIC) ranging of EGCG was from 0.019 to 1.25 mg/mL. Following a 7 days oral mucosal administration of medium-dose EGCG (0.625 mg/mL), the abundance of periodontal microorganisms in PD mice significantly decreased. This intervention ameliorated alveolar bone loss, reducing the average cementoenamel junction to the alveolar bone crest (CEJ-ABC) distance from 0.306 mm ± 0.050 mm to 0.161 mm ± 0.026 mm. Additionally, EGCG (0.3125 mg/mL) markedly down-regulated the expression of inflammatory factor IL-6 in the serum of PD mice. Conclusion Our research demonstrates the significant antibacterial effects of EGCG against the prevalent bacterium P. gulae in canine PD. Moreover, EGCG exhibits anti-inflammatory properties and proves effective in addressing bone loss in a PD mouse model. These findings collectively suggest the therapeutic potential of EGCG in the treatment of canine PD. The outcomes of this study contribute valuable data, laying the foundation for further exploration and screening of alternative antibiotic drugs to advance the management of canine PD.
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Affiliation(s)
- Peijia Song
- Country National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, China
- China Veterinary Medicine Innovation Center, China Agricultural University, Beijing, China
| | - Yibing Hao
- China Agricultural University Veterinary Teaching Hospital, Beijing, China
| | - Degui Lin
- Country National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yipeng Jin
- Country National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Jiahao Lin
- Country National Key Laboratory of Veterinary Public Health and Safety, College of Veterinary Medicine, China Agricultural University, Beijing, China
- China Veterinary Medicine Innovation Center, China Agricultural University, Beijing, China
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Plunder S, Burkard M, Helling T, Lauer UM, Hoelzle LE, Marongiu L. Determination of Optimal Phage Load and Administration Time for Antibacterial Treatment. Curr Protoc 2024; 4:e954. [PMID: 38217512 DOI: 10.1002/cpz1.954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Abstract
Using phages as antibacterials is becoming a customary practice in Western countries. Nonetheless, successful treatments must consider the growth rate of the bacterial host and the degradation of the virions. Therefore, successful treatments require administering the right amount of phage (viral load, Vφ) at the right moment (administration time, Tφ). The present protocols implement a machine learning approach to determine the best combination of Vφ and Tφ to obtain the elimination of the target bacterium from a system. © 2024 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: One bacterium, one phage Alternate Protocol 1: One bacterium, one phage (wrapping function) Alternate Protocol 2: One bacterium, one phage (wrapping function, alternative growing model) Basic Protocol 2: Two bacteria, one phage Alternate Protocol 3: Two bacteria, one phage (launch from terminal).
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Affiliation(s)
- Steffen Plunder
- Department of Mathematics, University of Vienna, Vienna, Austria
| | - Markus Burkard
- Department of Nutritional Biochemistry, University of Hohenheim, Stuttgart, Germany
| | - Thomas Helling
- Department of Nutritional Biochemistry, University of Hohenheim, Stuttgart, Germany
| | - Ulrich M Lauer
- Department of Internal Medicine VIII, University Hospital Tübingen, Tübingen, Germany
| | - Ludwig E Hoelzle
- Institute of Animal Science, University of Hohenheim, Stuttgart, Germany
- HoLMiR-Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
| | - Luigi Marongiu
- Department of Nutritional Biochemistry, University of Hohenheim, Stuttgart, Germany
- HoLMiR-Hohenheim Center for Livestock Microbiome Research, University of Hohenheim, Stuttgart, Germany
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Kyoui D, Saito Y, Takahashi A, Tanaka G, Yoshida R, Maegaki Y, Kawarai T, Ogihara H, Suzuki C. Antibacterial Activity of Hexanol Vapor In Vitro and on the Surface of Vegetables. Foods 2023; 12:3097. [PMID: 37628096 PMCID: PMC10453283 DOI: 10.3390/foods12163097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/16/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Hexanol is a volatile alcohol and a major component of plant essential oils (EOs). However, the antibacterial activity of hexanol vapor has not been well studied. This study aimed to evaluate the antibacterial activity of hexanol. In this study, seven food-related bacteria were exposed to 1-, 2- or 3-hexanol vapor on agar media to evaluate their growth. Additionally, the total viable counts in three vegetables when exposed to 1-hexanol vapor were measured. The results showed that 1-hexanol exhibited antibacterial effects against Gram-negative bacteria but did not affect Gram-positive bacteria. However, compounds 2- and 3-hexanol did not show antimicrobial activity against any bacteria. For the vegetables, exposure to 1-hexanol vapor decreased the total viable bacterial counts in cabbage and carrot and inhibited bacterial growth in eggplants. In cabbage, 1-hexanol vapor at concentrations over 50 ppm decreased the total viable count within 72 h, and 25 ppm of vapor showed bacteriostatic activity for 168 h. However, 1-hexanol vapor also caused discoloration in cabbage. In summary, 1-hexanol has the potential to act as an antibacterial agent, but further studies are required for practical use. Moreover, the study results may help determine the antimicrobial activity of various EOs in the future.
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Affiliation(s)
- Daisuke Kyoui
- Laboratory of Food Microbiology, Department of Food Science and Technology, College of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa 2520880, Kanagawa, Japan
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7
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Mahmut Z, Zhang C, Ruan F, Shi N, Zhang X, Wang Y, Zheng X, Tang Z, Dong B, Gao D, Sun J. Medical Applications and Advancement of Near Infrared Photosensitive Indocyanine Green Molecules. Molecules 2023; 28:6085. [PMID: 37630337 PMCID: PMC10459369 DOI: 10.3390/molecules28166085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/30/2023] [Accepted: 08/04/2023] [Indexed: 08/27/2023] Open
Abstract
Indocyanine green (ICG) is an important kind of near infrared (NIR) photosensitive molecules for PTT/PDT therapy as well as imaging. When exposed to NIR light, ICG can produce reactive oxygen species (ROS), which can kill cancer cells and pathogenic bacteria. Moreover, the absorbed light can also be converted into heat by ICG molecules to eliminate cancer cells. In addition, it performs exceptionally well in optical imaging-guided tumor therapy and antimicrobial therapy due to its deeper tissue penetration and low photobleaching properties in the near-infrared region compared to other dyes. In order to solve the problems of water and optical stability and multi-function problem of ICG molecules, composite nanomaterials based on ICG have been designed and widely used, especially in the fields of tumors and sterilization. So far, ICG molecules and their composite materials have become one of the most famous infrared sensitive materials. However, there have been no corresponding review articles focused on ICG molecules. In this review, the molecular structure and properties of ICG, composite material design, and near-infrared light- triggered anti-tumor, and antibacterial, and clinical applications are reviewed in detail, which of great significance for related research.
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Affiliation(s)
- Zulpya Mahmut
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Chunmei Zhang
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Fei Ruan
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China; (F.R.); (Z.T.)
| | - Nan Shi
- Department of Respiratory Medicine, No. 964 Hospital of People’s Liberation Army, 4799 Xi’an Road, Changchun 130062, China;
| | - Xinyao Zhang
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Yuda Wang
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Xianhong Zheng
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
| | - Zixin Tang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China; (F.R.); (Z.T.)
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China; (F.R.); (Z.T.)
| | - Donghui Gao
- Department of Anesthesiology and Operating Room, School and Hospital of Stomatology, Jilin University, Changchun 130012, China
| | - Jiao Sun
- Department of Cell Biology and Medical Genetics, College of Basic Medical Science, Jilin University, Changchun 130021, China; (Z.M.); (C.Z.); (X.Z.); (Y.W.); (X.Z.)
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Hong S, Jiang W, Ding Q, Lin K, Zhao C, Wang X. The Current Progress of Tetrahedral DNA Nanostructure for Antibacterial Application and Bone Tissue Regeneration. Int J Nanomedicine 2023; 18:3761-3780. [PMID: 37457798 PMCID: PMC10348378 DOI: 10.2147/ijn.s403882] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023] Open
Abstract
Recently, programmable assembly technologies have enabled the application of DNA in the creation of new nanomaterials with unprecedented functionality. One of the most common DNA nanostructures is the tetrahedral DNA nanostructure (TDN), which has attracted great interest worldwide due to its high stability, simple assembly procedure, high predictability, perfect programmability, and excellent biocompatibility. The unique spatial structure of TDN allows it to penetrate cell membranes in abundance and regulate cellular biological properties as a natural genetic material. Previous studies have demonstrated that TDNs can regulate various cellular biological properties, including promoting cells proliferation, migration and differentiation, inhibiting cells apoptosis, as well as possessing anti-inflammation and immunomodulatory capabilities. Furthermore, functional molecules can be easily modified at the vertices of DNA tetrahedron, DNA double helix structure, DNA tetrahedral arms or DNA tetrahedral cage structure, enabling TDN to be used as a nanocarrier for a variety of biological applications, including targeted therapies, molecular diagnosis, biosensing, antibacterial treatment, antitumor strategies, and tissue regeneration. In this review, we mainly focus on the current progress of TDN-based nanomaterials for antimicrobial applications, bone and cartilage tissue repair and regeneration. The synthesis and characterization of TDN, as well as the biological merits are introduced. In addition, the challenges and prospects of TDN-based nanomaterials are also discussed.
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Affiliation(s)
- Shebin Hong
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Weidong Jiang
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Qinfeng Ding
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Kaili Lin
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Cancan Zhao
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
| | - Xudong Wang
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, People’s Republic of China
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Neamati F, Kodori M, Feizabadi MM, Abavisani M, Barani M, Khaledi M, Moghadaszadeh M, Azadbakht MK, Zeinali M, Fathizadeh H. Bismuth nanoparticles against microbial infections. Nanomedicine (Lond) 2022; 17:2109-2122. [PMID: 36786392 DOI: 10.2217/nnm-2022-0153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
The destructive effect of infectious diseases on human life and the emergence of antibiotic-resistant strains highlight the importance of developing new and appropriate treatment strategies, one of which is the use of metals as therapeutic agents. Bismuth nanoparticles are an example of prominent metal-containing drugs. The therapeutic effects of bismuth-based drugs in the treatment of wounds have been proven. Various laboratory studies have confirmed the antimicrobial effects of bismuth nanoparticles, including the clinical treatment of ulcers caused by Helicobacter pylori. Therefore, considering the performance of this nanoparticle and its potent effect on infectious agents and its therapeutic dimensions, the present study fully investigated the properties and performance of this metal-based nanoparticle.
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Affiliation(s)
- Foroogh Neamati
- Department of Microbiology & Immunology, Kashan University of Medical Sciences, Kashan, 8713187591, I.R. Iran
| | - Mansoor Kodori
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, 7661635596, Iran
| | - Mohammad Mehdi Feizabadi
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, 1497911982, Iran
| | - Mohammad Abavisani
- Department of Microbiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, 1338663157, Iran
| | - Mohammad Barani
- Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, 7616714954, Iran
| | - Mansoor Khaledi
- Department of Microbiology, Faculty of Medicine, Shahed University, Tehran, 1113614581, Iran
| | - Masoud Moghadaszadeh
- Biotechnology Research Center, Tabriz University of Medical Science, Tabriz, 5145773478, Iran
| | | | - Mojdeh Zeinali
- Department of Basic Sciences, Sirjan School of Medical Sciences, Sirjan, 7818647, Iran
| | - Hadis Fathizadeh
- Student Research Committee, Sirjan School of Medical Sciences, Sirjan, 7818647787, Iran
- Department of Laboratory Sciences, Sirjan School of Medical Sciences, Sirjan, 7818647787, Iran
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10
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Plunder S, Burkard M, Lauer UM, Venturelli S, Marongiu L. Determination of phage load and administration time in simulated occurrences of antibacterial treatments. Front Med (Lausanne) 2022; 9:1040457. [PMID: 36388928 PMCID: PMC9650209 DOI: 10.3389/fmed.2022.1040457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/13/2022] [Indexed: 03/19/2024] Open
Abstract
The use of phages as antibacterials is becoming more and more common in Western countries. However, a successful phage-derived antibacterial treatment needs to account for additional features such as the loss of infective virions and the multiplication of the hosts. The parameters critical inoculation size (V F ) and failure threshold time (T F ) have been introduced to assure that the viral dose (V ϕ) and administration time (T ϕ) would lead to the extinction of the targeted bacteria. The problem with the definition of V F and T F is that they are non-linear equations with two unknowns; thus, obtaining their explicit values is cumbersome and not unique. The current study used machine learning to determine V F and T F for an effective antibacterial treatment. Within these ranges, a Pareto optimal solution of a multi-criterial optimization problem (MCOP) provided a pair of V ϕ and T ϕ to facilitate the user's work. The algorithm was tested on a series of in silico microbial consortia that described the outgrowth of a species at high cell density by another species initially present at low concentration. The results demonstrated that the MCOP-derived pairs of V ϕ and T ϕ could effectively wipe out the bacterial target within the context of the simulation. The present study also introduced the concept of mediated phage therapy, where targeting booster bacteria might decrease the virulence of a pathogen immune to phagial infection and highlighted the importance of microbial competition in attaining a successful antibacterial treatment. In summary, the present work developed a novel method for investigating phage/bacteria interactions that can help increase the effectiveness of the application of phages as antibacterials and ease the work of microbiologists.
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Affiliation(s)
- Steffen Plunder
- Department of Mathematics, University of Vienna, Vienna, Austria
| | - Markus Burkard
- Department of Nutritional Biochemistry, University of Hohenheim, Stuttgart, Germany
| | - Ulrich M. Lauer
- Department of Internal Medicine VIII, University Hospital Tübingen, Tübingen, Germany
| | - Sascha Venturelli
- Department of Nutritional Biochemistry, University of Hohenheim, Stuttgart, Germany
- Department of Vegetative and Clinical Physiology, Institute of Physiology, University Hospital Tübingen, Tübingen, Germany
| | - Luigi Marongiu
- Department of Nutritional Biochemistry, University of Hohenheim, Stuttgart, Germany
- Department of Internal Medicine VIII, University Hospital Tübingen, Tübingen, Germany
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11
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Yu Y, Tian R, Zhao Y, Qin X, Hu L, Zou JJ, Yang YW, Tian J. Self-Assembled Corrole/Chitosan Photothermal Nanoparticles for Accelerating Infected Diabetic Wound Healing. Adv Healthc Mater 2022:e2201651. [PMID: 36168853 DOI: 10.1002/adhm.202201651] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/13/2022] [Indexed: 11/12/2022]
Abstract
Microvascular dysfunction caused by hyperglycemia leads to slow healing of diabetic wounds and significantly increases the risk of bacterial infection. The misuse of antibiotics can also lead to bacterial resistance, making the management of diabetic wounds more challenging. Thus, developing new antibacterial agents or strategies to overcome antibiotic resistance is highly pursued. Herein, novel supramolecular photothermal nanoparticles (MCC/CS NPs), assembled from mono-carboxyl corrole (MCC) and chitosan via hydrogen bonding and π-π stacking, are developed and used for treating bacterial wound infection. The MCC molecules possess good photothermal performance and the chitosan with inherent bioactivity can exert moderately antibacterial effects. The aggregation of MCC in MCC/CS NPs induced by chitosan-templated self-assembly further quenches molecular fluorescence and realizes an extraordinary photothermal conversion efficiency of 66.4%. Moreover, the highly positively charged MCC/CS NPs could selectively target bacteria via electrostatic interactions. Under NIR laser irradiation, the MCC/CS NPs achieve potent photothermal and inherent antimicrobial synergistic effects against Escherichia coli and methicillin-resistant Staphylococcus aureus (MRSA) in vitro. Furthermore, the bacteria-infected diabetic wound model confirms that the MCC/CS NPs could effectively kill drug-resistant bacteria, accelerate wound healing and angiogenesis, and show good biocompatibility, representing a novel and efficient photothermal antibacterial nanoplatform. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Yunhao Yu
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430071, China
| | - Rui Tian
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu Zhao
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xudong Qin
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Liefeng Hu
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jun-Jie Zou
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China
| | - Ying-Wei Yang
- International Joint Research Laboratory of Nano-Micro Architecture Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Jian Tian
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430071, China.,Wuhan Research Center for Infectious Diseases and Cancer, Chinese Academy of Medical Sciences, Wuhan, 430071, China
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12
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Wang B, Wang L, Liu X, Zhu J, Hu R, Qin A, Tang BZ. AIE-Active Antibiotic Photosensitizer with Enhanced Fluorescence in Bacteria Infected Cells and Better Therapy Effect toward Drug-Resistant Bacteria. ACS Appl Bio Mater 2022; 5:4955-4964. [PMID: 36112526 DOI: 10.1021/acsabm.2c00681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It is well-known that bacterial infections will induce a variety of diseases in the clinic. In particular, the emergence of drug-resistant bacteria has increased the threat to human health. The development of multiple modes of therapy will effectively fight against drug-resistant bacterial infections. In this work, we covalently attached an AIE photosensitizer to the antibiotic of moxifloxacin hydrochloride (MXF-HCl) and synthesized an antibiotic derivative, MXF-R, with pharmacological activity and photodynamic activation. In infected cells, MXF-R showed enhanced fluorescence after it specifically binds to bacteria; thus, in situ visualization of the bacteria was realized. Notably, through chemo- and photodynamic therapy, MXF-R exhibited better antibacterial activity than its parent antibiotic in rapid sterilization, and it achieved effective killing for moxifloxacin resistant bacteria. In addition, MXF-R shows a broad-spectrum antibacterial effect and could be used in the recovery therapy of infected wounds in mice, demonstrative of a significant therapeutic effect and good biological safety. Thus, as a promising multifunctional antibacterial agent, MXF-R will have tremendous potential in in situ visualization study and killing of drug-resistant bacteria. This work provides an innovative strategy for solving critical disease through the combination of materials and biomedical sciences.
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Affiliation(s)
- Bingnan Wang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Lirong Wang
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Xiaolin Liu
- Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
| | - Jiamiao Zhu
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Rong Hu
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Anjun Qin
- State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
| | - Ben Zhong Tang
- Center for Aggregation-Induced Emission, AIE Institute, South China University of Technology, Guangzhou 510640, China
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen 518172, China
- Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration and Reconstruction, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon 999077, Hong Kong, China
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13
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Zhou Q, Chen J, Lu Z, Tian Q, Shao J. In Situ Synthesis of Silver Nanoparticles on Flame-Retardant Cotton Textiles Treated with Biological Phytic Acid and Antibacterial Activity. Materials (Basel) 2022; 15:ma15072537. [PMID: 35407868 PMCID: PMC9000066 DOI: 10.3390/ma15072537] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/06/2022] [Accepted: 03/28/2022] [Indexed: 12/20/2022]
Abstract
Fabrics were flame-retardant finished using phytic acid, a cost-effective, ecologically acceptable, and easily available flame-retardant finishing chemical. Then, on the surface of the completed fabric, silver nanoparticles (Ag NPs) were grown in situ to minimize Ag NPs aggregation and heterogeneous post-finishing and to increase washing durability. Thus, flame-retardant and antibacterial qualities were added to textiles. The as-prepared textiles were evaluated for their combustion performance, thermal performance, and antibacterial capabilities. At the same time, their microstructures were studied using X-ray diffractometry (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The findings indicated that flame-retardant textiles had an excellent launderability (limiting oxygen index = 31% after 20 washing cycles). Meanwhile, Ag NPs-loaded flame-retardant textiles demonstrated self-extinguishing properties, with a limiting oxygen index (LOI) of 27%. Bacteriostatic widths of flame-retardant antibacterial textiles against Escherichia coli and Staphylococcus aureus were 5.28 and 4.32 mm, respectively, indicating that Ag NPs-loaded flame-retardant fabrics have certain flame-retardant and antibacterial capabilities. SEM and TEM analysis indicated that nanoparticles were uniformly dispersed over Ag NPs-loaded flame-retardant textiles and were around 20 nm in size. When compared to flame-retardant textiles, Ag NPs-loaded flame-retardant fabrics showed varied binding energy of P and N on the surface and Ag ion emergence. Thermogravimetric analysis at various heating rates revealed that the main pyrolysis temperature range of flame-retardant fabrics decreased, while the main pyrolysis temperature range of Ag NPs-loaded flame-retardant fabrics increased; the heating rate influenced the pyrolysis range but not the fabric mass loss. In situ reduction synthesis of Ag NPs-loaded flame-retardant textiles may successfully reduce agglomeration and heterogeneous dispersion of nano-materials during post-finishing.
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Affiliation(s)
- Qingqing Zhou
- School of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China;
- Yancheng Institute of Technology, College of Textiles and Clothing, Yancheng 224051, China; (J.C.); (Z.L.)
| | - Jiayi Chen
- Yancheng Institute of Technology, College of Textiles and Clothing, Yancheng 224051, China; (J.C.); (Z.L.)
| | - Zhenqian Lu
- Yancheng Institute of Technology, College of Textiles and Clothing, Yancheng 224051, China; (J.C.); (Z.L.)
| | - Qiang Tian
- Zibo Dayang Flame Retardant Products Co., Ltd., Zibo 255000, China;
| | - Jianzhong Shao
- School of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, China;
- Correspondence: ; Tel.: +86-13770047378
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14
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Zhao Z, Song J, Yang C, Yang L, Chen J, Li X, Wang Y, Feng J. Prevalence of Fungal and Bacterial Co-Infection in Pulmonary Fungal Infections: A Metagenomic Next Generation Sequencing-Based Study. Front Cell Infect Microbiol 2021; 11:749905. [PMID: 34790588 PMCID: PMC8591235 DOI: 10.3389/fcimb.2021.749905] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/18/2021] [Indexed: 01/08/2023] Open
Abstract
With the widespread use of antibacterial drugs and increasing number of immunocompromised patients, pulmonary fungal infections are becoming more common. However, the incidence of pulmonary fungal and bacterial co-infection is rarely reported. In this study, 119 patients definitively diagnosed with pulmonary fungal infections between July 2018 and March 2020 were assessed using metagenomic next-generation sequencing (mNGS) as well as traditional pathogen detection to gauge the incidence of fungal and bacterial co-infection and evaluate the associated risk factors. We found that of the 119 patients with fungal infections, 48 (40.3%) had pulmonary fungal and bacterial co-infection. We identified immunocompromised status and the presence of one or more pulmonary cavities as risk factors associated with fungal and bacterial co-infection. The most commonly isolated fungi species were Aspergillus, Pneumocystis, and Rhizopus. The most commonly isolated bacterial species were Pseudomonas aeruginosa, Acinetobacter baumannii, and Stenotrophomonas maltophilia. Seventy-nine (66.4%) patients had received empirical antibiotic treatment before their pathogenic test results became available, and 41.7% (fungal infection group) and 38.7% (fungal and bacterial co-infection group) of the patients had their antibacterial drug dosage changed accordingly. This mNGS-based study showed that the incidence of fungal and bacterial co-infection is significant. Our research outcomes can, thus, guide the use of antibacterial drugs in the treatment of clinical fungal infections.
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Affiliation(s)
- Zhan Zhao
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Junxiu Song
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Changqing Yang
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Lei Yang
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin, China
| | - Jie Chen
- Guangzhou Sagene Biotechnology Company, Limited, Guangzhou, China
| | - Xinhui Li
- Guangzhou Sagene Biotechnology Company, Limited, Guangzhou, China
| | - Yubao Wang
- Institute of Infectious Diseases, The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Jing Feng
- Respiratory Department, Tianjin Medical University General Hospital, Tianjin, China
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15
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Sintchenko V, Timms V, Sim E, Rockett R, Bachmann N, O'Sullivan M, Marais B. Microbial Genomics as a Catalyst for Targeted Antivirulence Therapeutics. Front Med (Lausanne) 2021; 8:641260. [PMID: 33928102 PMCID: PMC8076527 DOI: 10.3389/fmed.2021.641260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 03/17/2021] [Indexed: 01/06/2023] Open
Abstract
Virulence arresting drugs (VAD) are an expanding class of antimicrobial treatment that act to “disarm” rather than kill bacteria. Despite an increasing number of VAD being registered for clinical use, uptake is hampered by the lack of methods that can identify patients who are most likely to benefit from these new agents. The application of pathogen genomics can facilitate the rational utilization of advanced therapeutics for infectious diseases. The development of genomic assessment of VAD targets is essential to support the early stages of VAD diffusion into infectious disease management. Genomic identification and characterization of VAD targets in clinical isolates can augment antimicrobial stewardship and pharmacovigilance. Personalized genomics guided use of VAD will provide crucial policy guidance to regulating agencies, assist hospitals to optimize the use of these expensive medicines and create market opportunities for biotech companies and diagnostic laboratories.
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Affiliation(s)
- Vitali Sintchenko
- Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, NSW, Australia.,Centre for Infectious Diseases and Microbiology-Public Health, Westmead Hospital, Westmead, NSW, Australia.,Centre for Infectious Diseases and Microbiology Laboratory Services, NSW Health Pathology-Institute of Clinical Pathology and Medical Research, Westmead, NSW, Australia
| | - Verlaine Timms
- Centre for Infectious Diseases and Microbiology-Public Health, Westmead Hospital, Westmead, NSW, Australia
| | - Eby Sim
- Centre for Infectious Diseases and Microbiology Laboratory Services, NSW Health Pathology-Institute of Clinical Pathology and Medical Research, Westmead, NSW, Australia
| | - Rebecca Rockett
- Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, NSW, Australia.,Centre for Infectious Diseases and Microbiology-Public Health, Westmead Hospital, Westmead, NSW, Australia
| | - Nathan Bachmann
- Centre for Infectious Diseases and Microbiology-Public Health, Westmead Hospital, Westmead, NSW, Australia
| | - Matthew O'Sullivan
- Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, NSW, Australia.,Centre for Infectious Diseases and Microbiology-Public Health, Westmead Hospital, Westmead, NSW, Australia.,Centre for Infectious Diseases and Microbiology Laboratory Services, NSW Health Pathology-Institute of Clinical Pathology and Medical Research, Westmead, NSW, Australia
| | - Ben Marais
- Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, NSW, Australia.,Children's Hospital at Westmead, Westmead, NSW, Australia
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16
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Zhao M, Zhang N, Yang R, Chen D, Zhao Y. Which is Better for Nanomedicines: Nanocatalysts or Single-Atom Catalysts? Adv Healthc Mater 2021; 10:e2001897. [PMID: 33326185 DOI: 10.1002/adhm.202001897] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/30/2020] [Indexed: 12/24/2022]
Abstract
With the rapid advancements in nanotechnology and materials science, numerous nanomaterials have been used as catalysts for nanomedical applications. Their design and modification according to the microenvironment of diseases have been shown to achieve effective treatment. Chemists are in pursuit of nanocatalysts that are more efficient, controllable, and less toxic by developing innovative synthetic technologies and improving existing ones. Recently, single-atom catalysts (SACs) with excellent catalytic activity and high selectivity have attracted increasing attention because of their accurate design as nanomaterials at the atomic level, thereby highlighting their potential for nanomedical applications. In this review, the recent advances in nanocatalysts and SACs are briefly summarized according to their synthesis, characterizations, catalytic mechanisms, and nanomedical applications. The opportunities and future scope for their development and the issues and challenges for their application as nanomedicine are also discussed. As far as it is known, the review is the systematic comparison of nanocatalysts and SACs, especially in the field of nanomedicine, which has promoted the development of nanocatalytic medicine.
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Affiliation(s)
- Mengyang Zhao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment Department of Pharmaceutics School of Pharmaceutical Sciences Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
- School of Materials Science and Engineering Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
| | - Nan Zhang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment Department of Pharmaceutics School of Pharmaceutical Sciences Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
| | - Ruigeng Yang
- State Key Laboratory of Esophageal Cancer Prevention and Treatment Department of Pharmaceutics School of Pharmaceutical Sciences Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
| | - Deliang Chen
- School of Materials Science and Engineering Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
- School of Materials Science and Engineering Dongguan University of Technology Dongguan 523808 P. R. China
| | - Yongxing Zhao
- State Key Laboratory of Esophageal Cancer Prevention and Treatment Department of Pharmaceutics School of Pharmaceutical Sciences Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases Zhengzhou University No. 100 Kexue Ave Zhengzhou 450001 P. R. China
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17
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Liu YX, Zhong H, Le KJ, Cui M. Bloodstream infection caused by Yersinia enterocolitica in a host with ankylosing spondylitis: a case report and literature review. Ann Palliat Med 2020; 10:5780-5785. [PMID: 32648451 DOI: 10.21037/apm-20-256] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 05/21/2020] [Indexed: 11/06/2022]
Abstract
The extraintestinal infections caused by Yersinia enterocolitica are very rare, especially in the form of spontaneous bloodstream infection at people without history of blood transfusion. Their clinical symptoms and treatments are still not very clear for now. Here, we report a case of spontaneous bloodstream infection caused by Y. enterocolitica in a 56-year-old Chinese male. The patient presented to outpatient with fever for 1 week, he was diagnosed ankylosing spondylitis for 10 years, and suffered from the pain in his neck, lumbosacral region and limbs constantly. After 4 days of outpatient treatment, there was no sign of improvement so he admitted to inpatient department. Ceftriaxone and metronidazole were initiated in the previous 3 days, the temperature did not drop (highest temperature is 38.3 °C) and the limb joint pain was aggravated. On day 4, antibiotic therapy was changed to moxifloxacin as the growth of Y. enterocolitica showed in blood culture, then changed to amikacin and piperacillin/tazobactam according to culture susceptibility. The patient received a total of 24 days antibacterial treatment before discharge, his body temperature returned to normal, but he remains continuous pain in lumbosacral region and limbs after negative blood culture, which was considered to be caused by AS. Gastrointestinal symptoms such as vomiting, diarrhea and abdominal pain were not reported during the hospitalization, which usually appears in patients with Yersinia enterocolitica infection. We reviewed 12 septicemia cases without the history of blood transfusion from the literature. Not all hosts were under a low immunity or have a clear history of exposure. Clinical symptoms and antibiotic agents were also different from case to case. Physicians should consider the rare diagnosis of Y. enterocolitica infection in patients without clear history of exposure and typical symptoms. And distinguish between pain caused by AS and aseptic arthritis caused by Y. enterocolitica.
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Affiliation(s)
- Yang-Xi Liu
- Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Han Zhong
- Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Ke-Jia Le
- Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Min Cui
- Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
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18
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Santos CAQ, Rhee Y, Czapka MT, Kazi AS, Proia LA. Make Sure You Have a Safety Net: Updates in the Prevention and Management of Infectious Complications in Stem Cell Transplant Recipients. J Clin Med 2020; 9:jcm9030865. [PMID: 32245201 PMCID: PMC7141503 DOI: 10.3390/jcm9030865] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 03/11/2020] [Indexed: 12/11/2022] Open
Abstract
Hematopoietic stem cell transplant recipients are at increased risk of infection and immune dysregulation due to reception of cytotoxic chemotherapy; development of graft versus host disease, which necessitates treatment with immunosuppressive medications; and placement of invasive catheters. The prevention and management of infections in these vulnerable hosts is of utmost importance and a key “safety net” in stem cell transplantation. In this review, we provide updates on the prevention and management of CMV infection; invasive fungal infections; bacterial infections; Clostridium difficile infection; and EBV, HHV-6, adenovirus and BK infections. We discuss novel drugs, such as letermovir, isavuconazole, meropenem-vaborbactam and bezlotoxumab; weigh the pros and cons of using fluoroquinolone prophylaxis during neutropenia after stem cell transplantation; and provide updates on important viral infections after hematopoietic stem cell transplant (HSCT). Optimizing the prevention and management of infectious diseases by using the best available evidence will contribute to better outcomes for stem cell transplant recipients, and provide the best possible “safety net” for these immunocompromised hosts.
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19
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Kukla M, Adrych K, Dobrowolska A, Mach T, Reguła J, Rydzewska G. Guidelines for Clostridium difficile infection in adults. Prz Gastroenterol 2020; 15:1-21. [PMID: 32215122 PMCID: PMC7089862 DOI: 10.5114/pg.2020.93629] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/17/2020] [Indexed: 12/16/2022]
Abstract
Clostridium difficile infection (CDI) has become a serious medical and epidemiological problem, especially in well developed countries. There has been evident increase in incidence and severity of CDI. Prevention, proper diagnosis and effective treatment are necessary to reduce the risk for the patients, deplete the spreading of infection and diminish the probability of recurrent infection. Antibiotics are the fundamental treatment of CDI. In patients who had recurrent CDI fecal microbiota transplantation seems to be promising and efficient strategy. These guidelines systematize existing data and include recent changes implemented in the management of CDI.
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Affiliation(s)
- Michał Kukla
- Department of Internal Medicine and Geriatrics, Jagiellonian University Medical College, Krakow, Poland
- Department of Endoscopy, University Hospital, Krakow, Poland
| | - Krystian Adrych
- Department of Gastroenterology and Hepatology, Medical University of Gdansk, Gdansk, Poland
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland
| | - Tomasz Mach
- Department of Gastroenterology, Hepatology and Infectious Diseases, Jagiellonian University Medical College, Krakow, Poland
| | - Jarosław Reguła
- Department of Gastroenterology, Hepatology and Clinical Oncology, Medical Postgraduate Education Centre, Warsaw, Poland
- Department of Gastrointestinal Oncology, “Maria Sklodowska-Curie” Clinical Oncology Institute, Warsaw, Poland
| | - Grażyna Rydzewska
- Central Clinical Hospital of Ministry of Inferior and Administration, Warsaw, Poland
- Collegium Medicum, Jan Kochanowski University, Kielce, Poland
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20
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Wang YL, He M, Miron RJ, Chen AY, Zhao YB, Zhang YF. Temperature/pH-Sensitive Nanoantibiotics and Their Sequential Assembly for Optimal Collaborations between Antibacterial and Immunoregulation. ACS Appl Mater Interfaces 2017; 9:31589-31599. [PMID: 28856893 DOI: 10.1021/acsami.7b10384] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Treatment of bacterial infections due to the fast emergence of drug-resistant bacteria is a significant challenge faced in modern medicine. Here the authors report a drug-induced self-assembly nanoantibiotic for treating bacterial infection, with temperature/pH-sensitivity, synergistic antibacterial effect of silver and antibiotics, and immunoregulatory effect. In this nanoantibiotic, smart polymer p(N-isopropylacrylamide-b-acrylic acid) triblock polymer (PNA) utilized to encapsulate the drugs provides convenience in preparing this structure simply through drug-induced self-assembly and controllable release profile by changing the sequence of addition of different drugs. The polymer also allows the nanoantibiotic to be responsive to multiple external stimuli such as pH, temperature, and ionic strength. The silver and antibiotics codelivered in this nanoantibiotic can exert a synergistic antibacterial effect due to the different antibacterial mechanisms. More importantly, macrophages can be activated into an M2 phenotype to promote tissue repair by this nanoantibiotic for the negative surface charge and the antibiotics contained. The self-assembly nanoantibiotic exhibited great promise to be applied in the treatment of bacterial infection and provide favorable utility for inflammation treatment, tissue engineering, and targeted therapy.
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Affiliation(s)
- Yu-Lan Wang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University , Wuhan, 430079, P. R. China
- Medical Research Institute, School of Medicine, Wuhan University , Wuhan, 430071, P. R. China
| | - Ming He
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, 430074, P. R. China
| | - Richard J Miron
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University , Wuhan, 430079, P. R. China
| | - Ao-Ying Chen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University , Wuhan, 430079, P. R. China
| | - Yan-Bing Zhao
- National Engineering Research Center for Nanomedicine, College of Life Science and Technology, Huazhong University of Science and Technology , Wuhan, 430074, P. R. China
| | - Yu-Feng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University , Wuhan, 430079, P. R. China
- Medical Research Institute, School of Medicine, Wuhan University , Wuhan, 430071, P. R. China
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21
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Velikova N, Wells JM. Rationale and Prospects of Targeting Bacterial Two-component Systems for Antibacterial Treatment of Cystic Fibrosis Patients. Curr Drug Targets 2016; 18:687-695. [PMID: 26853320 DOI: 10.2174/1389450117666160208145934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Revised: 02/02/2016] [Accepted: 02/06/2016] [Indexed: 11/22/2022]
Abstract
Bacterial respiratory infections are the main reason of morbidity and mortality among cystic fibrosis (CF) patients. In early childhood, the respiratory infections are due to Staphylococcus aureus and Haemophilus influenzae. In older CF patients, pathogenic Gram-negative bacteria like Achromobacter xylosoxidans, Burkholderia cepacia complex and especially Pseudomonas aeruginosa are more frequently seen. P. aeruginosa is a turning point in the respiratory disease in CF and its predominance increases with age. Bacteria use a variety of two-component systems (TCS) to differentially express virulence factors involved in both acute and chronic infections. Here, we review bacterial TCS as targets for antibacterial treatment for CF patients.
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Affiliation(s)
- Nadya Velikova
- Host-microbe Interactomics Group, Department of Animal Sciences, Wageningen University, Wageningen. Netherlands
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22
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Kul'chavenya EV, Breusov AA, Brizhatyuk EV, Shevchenko SY. [Acute cystitis do we always need antibiotics?]. Urologiia 2016:25-28. [PMID: 28247699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We attempted to skip the antibiotic therapy in 17 patients with acute uncomplicated cystitis in the early time of presentation (up to 12 hours from the disease onset). All patients received ketoprofen (Flamax forte) 100 mg once daily for 5 days and the combined herbal preparation KanefronH 2 tablets t.i.d. for 1 month. In 82.4% of patients acute uncomplicated cystitis was cured without antibiotics; 17.6% of cases required additional administration of antibacterial drugs.
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Affiliation(s)
- E V Kul'chavenya
- Novosibirsk Tuberculosis Research Institute of Minzdrav of Russia
- Novosibirsk State Medical University of Minzdrav of Russia
| | | | - E V Brizhatyuk
- Novosibirsk Tuberculosis Research Institute of Minzdrav of Russia
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23
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Bettiol E, Rottier WC, Del Toro MD, Harbarth S, Bonten MJ, Rodríguez-Baño J. Improved treatment of multidrug-resistant bacterial infections: utility of clinical studies. Future Microbiol 2015; 9:757-71. [PMID: 25046523 DOI: 10.2217/fmb.14.35] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
In a time of increasing antibacterial resistance and limited availability of new antibiotics, clinical studies are much needed to assess treatment options against multidrug-resistant organisms (MDROs). In this review, we describe the clinical challenge caused by MDROs and present recent evidence on how clinical studies may generate quality data to improve antibiotic treatment of MDRO infections. To this aim, we critically assess the current status, gaps and challenges associated with observational and interventional studies performed to assess MDRO treatment options. We address why observational studies are useful, which treatment options for MDRO have been explored by observational studies and how to improve quality and usefulness of observational studies. Furthermore, the utility of clinical pharmacokinetic/pharmacodynamic studies for improving MDRO treatment is described. Finally, we discuss interventional study designs, end points and margins, as well as ethical, logistic and statistical challenges, and current regulatory changes proposed to foster the development of new antibiotics.
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Affiliation(s)
- Esther Bettiol
- Infection Control Program, University of Geneva Hospitals & Faculty of Medicine, Geneva, Switzerland
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24
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Stefanoff P, Rogalska J, Czech M, Staszewska E, Rosinska M. Antibacterial prescriptions for acute gastrointestinal infections: uncovering the iceberg. Epidemiol Infect 2013; 141:859-67. [PMID: 22697178 PMCID: PMC9151879 DOI: 10.1017/s0950268812001173] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2012] [Revised: 05/18/2012] [Accepted: 05/18/2012] [Indexed: 11/06/2022] Open
Abstract
A prospective survey was conducted in patients admitted to 11 randomly selected general practices and eight hospitals located in six provinces of Poland. For each patient meeting the international acute gastrointestinal infection (AGI) case definition criteria, information was collected on healthcare resources used. Antibacterial drug consumption was assessed using defined daily doses (DDD) and extrapolated to the national level using results from a parallel study of AGI incidence in the community. Additionally, a logistic multivariable model was fitted assessing determinants of antibacterial drug administration. Valid questionnaires were collected from 385 general practitioner (GP) consultations and 504 hospital admissions. Antibacterials for systemic use were prescribed during 60 (16%) GP consultations and 179 (36%) hospital admissions. The estimated societal AGI-related consumption of antibacterials amounted to 5·48 million DDD (95% uncertainty interval 1·56-14·12 million DDD). Antibacterial prescription was associated with work in large practices [adjusted odds ratio (aOR) 3·16] and hospital wards (aOR 2·87), compared to small general practices, referral for microbiological testing (aOR 2·88), presence of fever (aOR 2·50), presence of mucus or blood in stool (aOR 1·94), age >65 years vs. <5 years (aOR 1·88), and rural vs. urban residence (aOR 1·53). Despite the fact that antibacterials were prescribed to a minority of consulted AGI patients, their consumption in society was not negligible due to the high prevalence of AGI symptoms. Prescription of antibacterial drugs should be restricted to cases with specific indications, preferably following microbiological investigation of AGI aetiology. To achieve this, clear national recommendations should be widely disseminated to physicians, and included in medical training curricula.
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Affiliation(s)
- P Stefanoff
- Department of Epidemiology, National Institute of Public Health-National Institute of Hygiene, 24 Chocimska Str., Warsaw, Poland.
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