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Dawoud BE, Hampson T, Barrow R, Mercuri LG. Antibiotic prophylaxis in alloplastic temporomandibular joint replacement surgery: A multi-national survey of temporomandibular joint surgeons. Br J Oral Maxillofac Surg 2024; 62:504-509. [PMID: 38685147 DOI: 10.1016/j.bjoms.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/19/2024] [Accepted: 03/18/2024] [Indexed: 05/02/2024]
Abstract
Temporomandibular disorders include a wide spectrum of extra-articular and intra-articular conditions affecting the temporomandibular joint (TMJ). In salvage cases involving intra-articular end-stage disease, alloplastic temporomandibular joint replacement (TMJR) is a management option which can be utilised to rehabilitate a disabled joint's function and form. Whilst post-TMJR infection is rare, it is one of the most serious complications. The principles governing TMJR surgery antibiotic prophylaxis have been based on those established in orthopaedic surgery literature. Antibiotic resistance due to antibiotic over-use is a significant concern, therefore antibiotic stewardship has been developed to deal with this world-wide public health concern. The TMJ's anatomical proximity to the external auditory canal and oral cavity creates the potential for bacterial contamination. The aim of this study was to explore the views of 39 sub-specialist TMJ surgeons across nine nations usual approach to antibiotic prophylaxis and their management of TMJR infection. To accomplish this, an international survey was developed and conducted using Google Forms. The results demonstrated that 97.4% of the respondents employ prophylactic antibiotics at TMJR surgery, 83.8% on discharge. Variability in antibiotic choice with additional antimicrobial perioperative practices were also reported. Opinions on the management of a TMJR infection also varied. This survey establishes there is an agreement on the use of antibiotic prophylaxis, However the variability in choice, timing, course, duration of antibiotic use as well as the management of a postoperative TMJR infection demonstrates the need for further study leading to development of standardised antibiotic prophylaxis and infection management protocols for TMJR surgery.
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Affiliation(s)
- B Es Dawoud
- Lancashire Teaching Hospitals NHS Foundation Trust, UK.
| | - T Hampson
- University of Manchester Medical School, UK
| | - R Barrow
- University of Manchester Medical School, UK
| | - L G Mercuri
- Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL, USA
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2
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Yu H, Xu M, Duan Q, Li Y, Liu Y, Song L, Cheng L, Ying J, Zhao D. 3D-printed porous tantalum artificial bone scaffolds: fabrication, properties, and applications. Biomed Mater 2024; 19:042002. [PMID: 38697199 DOI: 10.1088/1748-605x/ad46d2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 05/01/2024] [Indexed: 05/04/2024]
Abstract
Porous tantalum scaffolds offer a high degree of biocompatibility and have a low friction coefficient. In addition, their biomimetic porous structure and mechanical properties, which closely resemble human bone tissue, make them a popular area of research in the field of bone defect repair. With the rapid advancement of additive manufacturing, 3D-printed porous tantalum scaffolds have increasingly emerged in recent years, offering exceptional design flexibility, as well as facilitating the fabrication of intricate geometries and complex pore structures that similar to human anatomy. This review provides a comprehensive description of the techniques, procedures, and specific parameters involved in the 3D printing of porous tantalum scaffolds. Concurrently, the review provides a summary of the mechanical properties, osteogenesis and antibacterial properties of porous tantalum scaffolds. The use of surface modification techniques and the drug carriers can enhance the characteristics of porous tantalum scaffolds. Accordingly, the review discusses the application of these porous tantalum materials in clinical settings. Multiple studies have demonstrated that 3D-printed porous tantalum scaffolds exhibit exceptional corrosion resistance, biocompatibility, and osteogenic properties. As a result, they are considered highly suitable biomaterials for repairing bone defects. Despite the rapid development of 3D-printed porous tantalum scaffolds, they still encounter challenges and issues when used as bone defect implants in clinical applications. Ultimately, a concise overview of the primary challenges faced by 3D-printed porous tantalum scaffolds is offered, and corresponding insights to promote further exploration and advancement in this domain are presented.
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Affiliation(s)
- Haiyu Yu
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Minghao Xu
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Qida Duan
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Yada Li
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Yuchen Liu
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Liqun Song
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Liangliang Cheng
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Jiawei Ying
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
| | - Dewei Zhao
- Department of Orthopaedics, Affiliated Zhongshan Hospital of Dalian University, No. 6 Jiefang St, Dalian, Liaoning 116001, People's Republic of China
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Yuste I, Luciano FC, Anaya BJ, Sanz-Ruiz P, Ribed-Sánchez A, González-Burgos E, Serrano DR. Engineering 3D-Printed Advanced Healthcare Materials for Periprosthetic Joint Infections. Antibiotics (Basel) 2023; 12:1229. [PMID: 37627649 PMCID: PMC10451995 DOI: 10.3390/antibiotics12081229] [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: 06/19/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 08/27/2023] Open
Abstract
The use of additive manufacturing or 3D printing in biomedicine has experienced fast growth in the last few years, becoming a promising tool in pharmaceutical development and manufacturing, especially in parenteral formulations and implantable drug delivery systems (IDDSs). Periprosthetic joint infections (PJIs) are a common complication in arthroplasties, with a prevalence of over 4%. There is still no treatment that fully covers the need for preventing and treating biofilm formation. However, 3D printing plays a major role in the development of novel therapies for PJIs. This review will provide a deep understanding of the different approaches based on 3D-printing techniques for the current management and prophylaxis of PJIs. The two main strategies are focused on IDDSs that are loaded or coated with antimicrobials, commonly in combination with bone regeneration agents and 3D-printed orthopedic implants with modified surfaces and antimicrobial properties. The wide variety of printing methods and materials have allowed for the manufacture of IDDSs that are perfectly adjusted to patients' physiognomy, with different drug release profiles, geometries, and inner and outer architectures, and are fully individualized, targeting specific pathogens. Although these novel treatments are demonstrating promising results, in vivo studies and clinical trials are required for their translation from the bench to the market.
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Affiliation(s)
- Iván Yuste
- Pharmaceutics and Food Technology Department, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (I.Y.); (F.C.L.); (B.J.A.); (D.R.S.)
| | - Francis C. Luciano
- Pharmaceutics and Food Technology Department, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (I.Y.); (F.C.L.); (B.J.A.); (D.R.S.)
| | - Brayan J. Anaya
- Pharmaceutics and Food Technology Department, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (I.Y.); (F.C.L.); (B.J.A.); (D.R.S.)
| | - Pablo Sanz-Ruiz
- Orthopaedic and Trauma Department, Hospital General Universitario Gregorio Marañón, 28029 Madrid, Spain;
- Department of Surgery, Faculty of Medicine, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain
| | - Almudena Ribed-Sánchez
- Hospital Pharmacy Unit, Hospital General Universitario Gregorio Marañón, 28029 Madrid, Spain;
| | - Elena González-Burgos
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain
| | - Dolores R. Serrano
- Pharmaceutics and Food Technology Department, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain; (I.Y.); (F.C.L.); (B.J.A.); (D.R.S.)
- Instituto Universitario de Farmacia Industrial, Faculty of Pharmacy, Universidad Complutense de Madrid (UCM), 28040 Madrid, Spain
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Qian H, Yao Q, Pi L, Ao J, Lei P, Hu Y. Current Advances and Applications of Tantalum Element in Infected Bone Defects. ACS Biomater Sci Eng 2023; 9:1-19. [PMID: 36563349 DOI: 10.1021/acsbiomaterials.2c00884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Infected bone defects (IBDs) cause significant economic and psychological burdens, posing a huge challenge to clinical orthopedic surgeons. Traditional approaches for managing IBDs possess inevitable shortcomings; therefore, it is necessary to develop new functionalized scaffolds. Tantalum (Ta) has been widely used in load-bearing orthopedic implants due to its good biocompatibility and corrosion resistance. However, undecorated Ta could only structurally repair common bone defects, which failed to meet the clinical needs of bacteriostasis for IBDs. Researchers have made great efforts to functionalize Ta scaffolds to enhance their antibacterial activity through various methods, including surface coating, alloying, and micro- and nanostructure modifications. Additionally, several studies have successfully utilized Ta to modify orthopedic scaffolds for enhanced antibacterial function. These studies remarkably extended the application range of Ta. Therefore, this review systematically outlines the advances in the fundamental and clinical application of Ta in the treatment of IBDs, focusing on the antibacterial properties of Ta, its functionalization for bacteriostasis, and its applications in the modification of orthopedic scaffolds. This study provides researchers with an overview of the application of Ta in the treatment of IBDs.
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Affiliation(s)
- Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Qingshuang Yao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Lanping Pi
- Nursing Department, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Pengfei Lei
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310030, China
| | - Yihe Hu
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310030, China
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Ge X, Li T, Yu M, Zhu H, Wang Q, Bi X, Xi T, Wu X, Gao Y. A review: strategies to reduce infection in tantalum and its derivative applied to implants. BIOMED ENG-BIOMED TE 2023:bmt-2022-0211. [PMID: 36587948 DOI: 10.1515/bmt-2022-0211] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 12/21/2022] [Indexed: 01/03/2023]
Abstract
Implant-associated infection is the main reasons for implant failure. Titanium and titanium alloy are currently the most widely used implant materials. However, they have limited antibacterial performance. Therefore, enhancing the antibacterial ability of implants by surface modification technology has become a trend of research. Tantalum is a potential implant coating material with good biological properties. With the development of surface modification technology, tantalum coating becomes more functional through improvement. In addition to improving osseointegration, its antibacterial performance has also become the focus of attention. In this review, we provide an overview of the latest strategies to improve tantalum antibacterial properties. We demonstrate the potential of the clinical application of tantalum in reducing implant infections by stressing its advantageous properties.
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Affiliation(s)
- Xiao Ge
- School of Stomatology, Weifang Medical University, Weifang, China
| | - Ti Li
- Department of Stomatology, Weifang People's Hospital, Weifang, China
| | - Miao Yu
- Department of Stomatology, Weifang People's Hospital, Weifang, China
| | - Hongguang Zhu
- Department of Stomatology, Weifang People's Hospital, Weifang, China
| | - Qing Wang
- Department of Stomatology, Weifang People's Hospital, Weifang, China
| | - Xiuting Bi
- Department of Stomatology, Weifang People's Hospital, Weifang, China
| | - Tiantian Xi
- School of Stomatology, Weifang Medical University, Weifang, China
| | - Xiaoyan Wu
- School of Stomatology, Weifang Medical University, Weifang, China
| | - Yubin Gao
- School of Stomatology, Weifang Medical University, Weifang, China
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6
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Akshaya S, Rowlo PK, Dukle A, Nathanael AJ. Antibacterial Coatings for Titanium Implants: Recent Trends and Future Perspectives. Antibiotics (Basel) 2022; 11:antibiotics11121719. [PMID: 36551376 PMCID: PMC9774638 DOI: 10.3390/antibiotics11121719] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 12/02/2022] Open
Abstract
Titanium and its alloys are widely used as implant materials for biomedical devices owing to their high mechanical strength, biocompatibility, and corrosion resistance. However, there is a significant rise in implant-associated infections (IAIs) leading to revision surgeries, which are more complicated than the original replacement surgery. To reduce the risk of infections, numerous antibacterial agents, e.g., bioactive compounds, metal ions, nanoparticles, antimicrobial peptides, polymers, etc., have been incorporated on the surface of the titanium implant. Various coating methods and surface modification techniques, e.g., micro-arc oxidation (MAO), layer-by-layer (LbL) assembly, plasma electrolytic oxidation (PEO), anodization, magnetron sputtering, and spin coating, are exploited in the race to create a biocompatible, antibacterial titanium implant surface that can simultaneously promote tissue integration around the implant. The nature and surface morphology of implant coatings play an important role in bacterial inhibition and drug delivery. Surface modification of titanium implants with nanostructured materials, such as titanium nanotubes, enhances bone regeneration. Antimicrobial peptides loaded with antibiotics help to achieve sustained drug release and reduce the risk of antibiotic resistance. Additive manufacturing of patient-specific porous titanium implants will have a clear future direction in the development of antimicrobial titanium implants. In this review, a brief overview of the different types of coatings that are used to prevent implant-associated infections and the applications of 3D printing in the development of antibacterial titanium implants is presented.
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Affiliation(s)
- S. Akshaya
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
- School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
| | - Praveen Kumar Rowlo
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
- School of Bio Sciences & Technology, Vellore Institute of Technology, Vellore 632014, India
| | - Amey Dukle
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
- School of Bio Sciences & Technology, Vellore Institute of Technology, Vellore 632014, India
| | - A. Joseph Nathanael
- Centre for Biomaterials, Cellular and Molecular Theranostics (CBCMT), Vellore Institute of Technology, Vellore 632014, India
- Correspondence:
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Wang Y, Teng W, Zhang Z, Ma S, Jin Z, Zhou X, Ye Y, Zhang C, Gou Z, Yu X, Ye Z, Ren Y. Remote Eradication of Bacteria on Orthopedic Implants via Delayed Delivery of Polycaprolactone Stabilized Polyvinylpyrrolidone Iodine. J Funct Biomater 2022; 13:jfb13040195. [PMID: 36278664 PMCID: PMC9589933 DOI: 10.3390/jfb13040195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/08/2022] [Accepted: 10/15/2022] [Indexed: 11/16/2022] Open
Abstract
Bacteria-associated late infection of the orthopedic devices would further lead to the failure of the implantation. However, present ordinary antimicrobial strategies usually deal with early infection but fail to combat the late infection of the implants due to the burst release of the antibiotics. Thus, to fabricate long-term antimicrobial (early antibacterial, late antibacterial) orthopedic implants is essential to address this issue. Herein, we developed a sophisticated MAO-I2-PCLx coating system incorporating an underlying iodine layer and an upper layer of polycaprolactone (PCL)-controlled coating, which could effectively eradicate the late bacterial infection throughout the implantation. Firstly, micro-arc oxidation was used to form a microarray tubular structure on the surface of the implants, laying the foundation for iodine loading and PCL bonding. Secondly, electrophoresis was applied to load iodine in the tubular structure as an efficient bactericidal agent. Finally, the surface-bonded PCL coating acts as a controller to regulate the release of iodine. The hybrid coatings displayed great stability and control release capacity. Excellent antibacterial ability was validated at 30 days post-implantation via in vitro experiments and in vivo rat osteomyelitis model. Expectedly, it can become a promising bench-to-bedside strategy for current infection challenges in the orthopedic field.
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Affiliation(s)
- Yikai Wang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan 430060, China
| | - Wangsiyuan Teng
- Department of Orthopedics, Centre for Orthopaedic Research, Orthopedics Research Institute of Zhejiang University, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, China
| | - Zengjie Zhang
- Department of Orthopedics, Centre for Orthopaedic Research, Orthopedics Research Institute of Zhejiang University, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, China
| | - Siyuan Ma
- Department of Orthopedics, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan 430060, China
| | - Zhihui Jin
- Department of Orthopedics, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan 430060, China
| | - Xingzhi Zhou
- Department of Orthopedics, Centre for Orthopaedic Research, Orthopedics Research Institute of Zhejiang University, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, China
| | - Yuxiao Ye
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Chongda Zhang
- New York University Medical Center, New York University, New York, NY 10016, USA
| | - Zhongru Gou
- Bio-Nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
| | - Xiaohua Yu
- Department of Orthopedics, Centre for Orthopaedic Research, Orthopedics Research Institute of Zhejiang University, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, China
| | - Zhaoming Ye
- Department of Orthopedics, Centre for Orthopaedic Research, Orthopedics Research Institute of Zhejiang University, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
- Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou 310009, China
- Correspondence: (Z.Y.); (Y.R.); Tel.: +86-571-8778-3777 (Z.Y.); +86-027-8804-1911 (ext. 83380) (Y.R.)
| | - Yijun Ren
- Department of Orthopedics, Renmin Hospital of Wuhan University, Jiefang Road 238, Wuhan 430060, China
- Correspondence: (Z.Y.); (Y.R.); Tel.: +86-571-8778-3777 (Z.Y.); +86-027-8804-1911 (ext. 83380) (Y.R.)
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Jain P, Kathuria H, Dubey N. Advances in 3D bioprinting of tissues/organs for regenerative medicine and in-vitro models. Biomaterials 2022; 287:121639. [PMID: 35779481 DOI: 10.1016/j.biomaterials.2022.121639] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/05/2022] [Accepted: 06/14/2022] [Indexed: 11/24/2022]
Abstract
Tissue/organ shortage is a major medical challenge due to donor scarcity and patient immune rejections. Furthermore, it is difficult to predict or mimic the human disease condition in animal models during preclinical studies because disease phenotype differs between humans and animals. Three-dimensional bioprinting (3DBP) is evolving into an unparalleled multidisciplinary technology for engineering three-dimensional (3D) biological tissue with complex architecture and composition. The technology has emerged as a key driver by precise deposition and assembly of biomaterials with patient's/donor cells. This advancement has aided in the successful fabrication of in vitro models, preclinical implants, and tissue/organs-like structures. Here, we critically reviewed the current state of 3D-bioprinting strategies for regenerative therapy in eight organ systems, including nervous, cardiovascular, skeletal, integumentary, endocrine and exocrine, gastrointestinal, respiratory, and urinary systems. We also focus on the application of 3D bioprinting to fabricated in vitro models to study cancer, infection, drug testing, and safety assessment. The concept of in situ 3D bioprinting is discussed, which is the direct printing of tissues at the injury or defect site for reparative and regenerative therapy. Finally, issues such as scalability, immune response, and regulatory approval are discussed, as well as recently developed tools and technologies such as four-dimensional and convergence bioprinting. In addition, information about clinical trials using 3D printing has been included.
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Affiliation(s)
- Pooja Jain
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, Mumbai, Maharashtra, India; Faculty of Dentistry, National University of Singapore, Singapore
| | - Himanshu Kathuria
- Department of Pharmacy, National University of Singapore, 117543, Singapore; Nusmetic Pte Ltd, Makerspace, I4 Building, 3 Research Link Singapore, 117602, Singapore.
| | - Nileshkumar Dubey
- Faculty of Dentistry, National University of Singapore, Singapore; ORCHIDS: Oral Care Health Innovations and Designs Singapore, National University of Singapore, Singapore.
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9
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Li Y, Jiang Y, Lessing DJ, Chu W. Exploring of probiotic potential vaginal Lactobacillus isolates from healthy women against Gardnerella vaginalis and Caenorhabditis elegans model testing. J Appl Microbiol 2022; 133:1392-1401. [PMID: 35633296 DOI: 10.1111/jam.15643] [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: 04/18/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022]
Abstract
AIM Lactobacillus species are the dominant microorganisms in the vaginal microbiota of healthy women and play an important role in the defense against pathogens. This study aimed to evaluate probiotic potential of Lactiplantibacillus plantarum strain P1 isolated from healthy woman's vaginal discharge for its further utilization as a promising candidate strain in the treatment of bacterial vaginosis caused by Gardnerella vaginalis. METHODS AND RESULTS Ten lactobacilli strains from a woman's vaginal discharge were evaluated for their probiotic potential, including growth capacity at different pH levels (pH3.5~4.5), acid production, hydrogen peroxide production capacity, antibacterial activity, susceptibility to antibiotics. Moreover In vitro safety assay hemolytic activity and mutagenicity were investigated for safety assessment. In vivo Caenorhabditis elegans infection model was used to investigate the anti-infection effect of selected isolates. We found that lactobacilli strain P1 showed strong growth ability in low acid environment, produced acid, hydrogen peroxide, had the strongest antibacterial activity against G. vaginalis and was highly susceptible to the tested antibiotics. When assayed for the safety, strain P1 showed no hemolytic activity and had no effect of mutagenicity. Moreover, P1 significantly increased the lifespan of C. elegans against G. vaginalis infection. Combined with the results of 16S rRNA gene sequencing, morphological and physiological characteristic, the strain was identified as Lactiplantibacillus plantarum. CONCLUSION Lactiplantibacillus plantarum strain P1 proves to be a promising candidate strain in the treatment of bacterial vaginosis caused by G. vaginalis. SIGNIFICANCE AND IMPACT OF THE STUDY Conventional antibiotic therapy for bacterial vaginosis has led to the accelerated process of bacterial drug resistance. Probiotics are potentially an alternative method for bacterial vaginosis therapy. This finding provides bacterial resources for keeping pathogens away from the vagina. We believe L. plantarum P1 may be used as vaginal probiotics and be useful to prevent or treat bacterial vaginitis.
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Affiliation(s)
- Yunxia Li
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Yan Jiang
- Animal, Plant and Food Inspection Center of Nanjing Customs, Nanjing 210019, China
| | - Duncan James Lessing
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
| | - Weihua Chu
- Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
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10
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Hamad C, Chowdhry M, Sindeldecker D, Bernthal NM, Stoodley P, McPherson EJ. Adaptive antimicrobial resistance, a description of microbial variants, and their relevance to periprosthetic joint infection. Bone Joint J 2022; 104-B:575-580. [PMID: 35491584 PMCID: PMC9948434 DOI: 10.1302/0301-620x.104b5.bjj-2021-1759.r1] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Periprosthetic joint infection (PJI) is a difficult complication requiring a comprehensive eradication protocol. Cure rates have essentially stalled in the last two decades, using methods of antimicrobial cement joint spacers and parenteral antimicrobial agents. Functional spacers with higher-dose antimicrobial-loaded cement and antimicrobial-loaded calcium sulphate beads have emphasized local antimicrobial delivery on the premise that high-dose local antimicrobial delivery will enhance eradication. However, with increasing antimicrobial pressures, microbiota have responded with adaptive mechanisms beyond traditional antimicrobial resistance genes. In this review we describe adaptive resistance mechanisms that are relevant to the treatment of PJI. Some mechanisms are well known, but others are new. The objective of this review is to inform clinicians of the known adaptive resistance mechanisms of microbes relevant to PJI. We also discuss the implications of these adaptive mechanisms in the future treatment of PJI. Cite this article: Bone Joint J 2022;104-B(5):575-580.
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Affiliation(s)
- Christopher Hamad
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Madhav Chowdhry
- Nuffield Department of Primary Care Health Sciences, Kellogg College, University of Oxford, Oxford, UK
| | - Devin Sindeldecker
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio, USA,Biomedical Sciences Graduate Program, The Ohio State University, Columbus, Ohio, USA
| | - Nicholas M. Bernthal
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Paul Stoodley
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, Ohio, USA,Department of Orthopaedics, The Ohio State University, Columbus, Ohio, USA,National Centre for Advanced Tribology at Southampton, Department of Mechanical Engineering, University of Southampton, Southampton, UK
| | - Edward J. McPherson
- Department of Orthopaedic Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA,Correspondence should be sent to Edward J. McPherson. E-mail:
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Abstract
Implant-associated infections (IAIs) are among the most intractable and costly complications in implant surgery. They can lead to surgery failure, a high economic burden, and a decrease in patient quality of life. This manuscript is devoted to introducing current antimicrobial strategies for additively manufactured (AM) titanium (Ti) implants and fostering a better understanding in order to pave the way for potential modern high-throughput technologies. Most bactericidal strategies rely on implant structure design and surface modification. By means of rational structural design, the performance of AM Ti implants can be improved by maintaining a favorable balance between the mechanical, osteogenic, and antibacterial properties. This subject becomes even more important when working with complex geometries; therefore, it is necessary to select appropriate surface modification techniques, including both topological and chemical modification. Antibacterial active metal and antibiotic coatings are among the most commonly used chemical modifications in AM Ti implants. These surface modifications can successfully inhibit bacterial adhesion and biofilm formation, and bacterial apoptosis, leading to improved antibacterial properties. As a result of certain issues such as drug resistance and cytotoxicity, the development of novel and alternative antimicrobial strategies is urgently required. In this regard, the present review paper provides insights into the enhancement of bactericidal properties in AM Ti implants.
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Springer BD, Haddad FS. The Knee Society Closed Meeting Supplement 2020. Bone Joint J 2020; 102-B:1-2. [PMID: 32475270 DOI: 10.1302/0301-620x.102b6.bjj-2020-0731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bryan D Springer
- OrthCarolina Hip and Knee Center, Charlotte, North Carolina, USA
| | - Fares S Haddad
- The Bone & Joint Journal, Professor of Orthopaedic Surgery, University College London Hospitals, The Princess Grace Hospital, and The NIHR Biomedical Research Centre at UCLH, London, UK
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