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Dorozhkin SV. Calcium Orthophosphate (CaPO4) Containing Composites for Biomedical Applications: Formulations, Properties, and Applications. JOURNAL OF COMPOSITES SCIENCE 2024; 8:218. [DOI: 10.3390/jcs8060218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The goal of this review is to present a wide range of hybrid formulations and composites containing calcium orthophosphates (abbreviated as CaPO4) that are suitable for use in biomedical applications and currently on the market. The bioactive, biocompatible, and osteoconductive properties of various CaPO4-based formulations make them valuable in the rapidly developing field of biomedical research, both in vitro and in vivo. Due to the brittleness of CaPO4, it is essential to combine the desired osteologic properties of ceramic CaPO4 with those of other compounds to create novel, multifunctional bone graft biomaterials. Consequently, this analysis offers a thorough overview of the hybrid formulations and CaPO4-based composites that are currently known. To do this, a comprehensive search of the literature on the subject was carried out in all significant databases to extract pertinent papers. There have been many formulations found with different material compositions, production methods, structural and bioactive features, and in vitro and in vivo properties. When these formulations contain additional biofunctional ingredients, such as drugs, proteins, enzymes, or antibacterial agents, they offer improved biomedical applications. Moreover, a lot of these formulations allow cell loading and promote the development of smart formulations based on CaPO4. This evaluation also discusses basic problems and scientific difficulties that call for more investigation and advancements. It also indicates perspectives for the future.
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Affiliation(s)
- Sergey V. Dorozhkin
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russia
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2
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Takafuji K, Oyamada Y, Hatakeyama W, Kihara H, Shimazaki N, Fukutoku A, Satoh H, Kondo H. Quantitative analysis of change in bone volume 5 years after sinus floor elevation using plate-shaped bone substitutes: a prospective observational study. Int J Implant Dent 2024; 10:9. [PMID: 38372934 PMCID: PMC10876503 DOI: 10.1186/s40729-023-00501-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 09/09/2023] [Indexed: 02/20/2024] Open
Abstract
PURPOSE Tricalcium phosphate (TCP) has osteoconductive ability and reportedly offers similar clinical results as autogenous bone grafts in dental implant treatment. However, few reports quantify temporal changes in augmented bone volume after sinus augmentation. We aimed to establish a three-dimensional (3D) quantification method to assess bone volume after sinus augmentation and to evaluate biocompatibility of the TCP plate. METHODS Maxillary sinus floor augmentation was performed employing the lateral window technique, and plate-shaped β-TCP (TCP plate) was used instead of granular bone grafting materials. After lifting the sinus membrane, the TCP plate was inserted and supported by dental implants or micro-screws. The changes in bone volumes in the maxillary sinus before and after surgery were recorded using cone-beam computed tomography, saved as Digital Imaging and Communications in Medicine-formatted files, and transformed to Standard Triangle Language (STL)-formatted files. Pre- and post-operative STL data of bone volume were superimposed, and the augmented bone volume was calculated. Moreover, changes in bone volumes, TCP plate resorption rates, and bone heights surrounding the implants were three dimensionally quantified. RESULTS Fifteen implants in nine subjects were included in this study. TCP plates secured long-term space making, with results similar to those of granular bone substitutes. Newly formed bone was identified around the implant without bone graft material. TCP plate was absorbed and gradually disappeared. CONCLUSIONS A novel 3D quantification method was established to evaluate changes in bone volume. Clinical application of TCP plate in sinus augmentation could be a better procedure in terms of prognosis and safety.
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Affiliation(s)
- Kyoko Takafuji
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
- Department of Fixed Prosthodontics and Oral Implantology, Aichi Gakuin University, Nagoya, Japan
| | - Yutaro Oyamada
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Wataru Hatakeyama
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Hidemichi Kihara
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Nobuko Shimazaki
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Akihiro Fukutoku
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Hiroaki Satoh
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan
| | - Hisatomo Kondo
- Department of Prosthodontics and Oral Implantology School of Dentistry, Iwate Medical University, 19-1 Uchimaru, Morioka, 020-8505, Japan.
- Department of Fixed Prosthodontics and Oral Implantology, Aichi Gakuin University, Nagoya, Japan.
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Kim K, Su Y, Kucine AJ, Cheng K, Zhu D. Guided Bone Regeneration Using Barrier Membrane in Dental Applications. ACS Biomater Sci Eng 2023; 9:5457-5478. [PMID: 37650638 DOI: 10.1021/acsbiomaterials.3c00690] [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] [Indexed: 09/01/2023]
Abstract
Guided bone regeneration (GBR) is a widely used technique in preclinical and clinical studies due to its predictability. Its main purpose is to prevent the migration of soft tissue into the osseous wound space, while allowing osseous cells to migrate to the site. GBR is classified into two main categories: resorbable and non-resorbable membranes. Resorbable membranes do not require a second surgery but tend to have a short resorption period. Conversely, non-resorbable membranes maintain their mechanical strength and prevent collapse. However, they require removal and are susceptible to membrane exposure. GBR is often used with bone substitute graft materials to fill the defect space and protect the bone graft. The membrane can also undergo various modifications, such as surface modification and biological factor loading, to improve barrier functions and bone regeneration. In addition, bone regeneration is largely related to osteoimmunology, a new field that focuses on the interactions between bone and the immune system. Understanding these interactions can help in developing new treatments for bone diseases and injuries. Overall, GBR has the potential to be a powerful tool in promoting bone regeneration. Further research in this area could lead to advancements in the field of bone healing. This review will highlight resorbable and non-resorbable membranes with cellular responses during bone regeneration, provide insights into immunological response during bone remodeling, and discuss antibacterial features.
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Affiliation(s)
- Kakyung Kim
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Yingchao Su
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Allan J Kucine
- Department of Oral and Maxillofacial Surgery, Stony Brook University, Stony Brook, New York 11794, United States
| | - Ke Cheng
- Department of Biomedical Engineering, Columbia University, New York City, New York 10027, United States
| | - Donghui Zhu
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
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Behrend-Keim B, Castro-Muñoz A, Monrreal-Ortega L, Ávalos-León B, Campos-Estrada C, Smyth HDC, Bahamondez-Canas TF, Moraga-Espinoza D. The forgotten material: Highly dispersible and swellable gelatin-based microspheres for pulmonary drug delivery of cromolyn sodium and ipratropium bromide. Int J Pharm 2023; 644:123331. [PMID: 37597595 DOI: 10.1016/j.ijpharm.2023.123331] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/28/2023] [Accepted: 08/17/2023] [Indexed: 08/21/2023]
Abstract
Controlled-release formulations for pulmonary delivery are highly desirable for treating chronic diseases such as COPD. However, a limited number of polymers are currently approved for inhalation. The study presents a promising strategy using gelatin as a matrix for inhalable dry powders, allowing the controlled release of ionic drugs. Ionized cromoglicate sodium (CS) and ipratropium bromide (IBr) interacted in solution with charged gelatin before spray drying (SD). Calcium carbonate was used as a crosslinker. The microspheres showed remarkable aerosol performance after optimizing the SD parameters and did not cause cytotoxicity in A549 cells. The microspheres were highly dispersible with ∼ 50-60% of respirable fraction and fine particle fraction 55-70%. Uncrosslinked microspheres increased their size from four to ten times by swelling after 5 min showing potential as a strategy to avoid macrophage clearance and prolong the therapeutic effect of the drug. Crosslinkers prevented particle swelling. Ionic interaction generated a moderate reduction of the drug release. Overall, this study provides a novel approach for developing DPI formulations for treating chronic respiratory diseases using a biopolymer approved by the FDA, potentially enhancing drug activity through controlled release and avoiding macrophage clearance.
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Affiliation(s)
- Beatriz Behrend-Keim
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile; Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, United States
| | - Almendra Castro-Muñoz
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile
| | - Luis Monrreal-Ortega
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile
| | - Bárbara Ávalos-León
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile
| | - Carolina Campos-Estrada
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile; Centro de Investigación Farmacopea Chilena, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile
| | - Hugh D C Smyth
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, TX, United States
| | - Tania F Bahamondez-Canas
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile; Centro de Investigación Farmacopea Chilena, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile
| | - Daniel Moraga-Espinoza
- Escuela de Química y Farmacia, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile; Centro de Investigación Farmacopea Chilena, Universidad de Valparaíso, Gran Bretaña 1093, Playa Ancha, Valparaíso, Región de Valparaíso 2340000, Chile.
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Marchenko ES, Baigonakova GA, Dubovikov KM, Kokorev OV, Gordienko II, Chudinova EA. Properties of Coatings Based on Calcium Phosphate and Their Effect on Cytocompatibility and Bioactivity of Titanium Nickelide. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2581. [PMID: 37048875 PMCID: PMC10095358 DOI: 10.3390/ma16072581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
Coatings based on calcium phosphate with thicknesses of 0.5 and 2 μm were obtained by high-frequency magnetron sputtering on NiTi substrates in an argon atmosphere. The coating was characterized using X-ray diffraction, scanning electron microscopy, atomic force microscopy, and in vitro cytocompatibility and bioactivity studies. A biphasic coating of tricalcium phosphate (Ca3(PO4)2) and hydroxyapatite (Ca10(PO4)6(OH)2) with a 100% degree of crystallinity was formed on the surface. The layer enriched in calcium, phosphorus, and oxygen was observed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. Scanning electron microscopy showed that the surface structure is homogeneous without visible defects. The 2 µm thick coating obtained by sputtering with a deposition time of 4 h and a deposition rate of 0.43 µm/h is uniform, contains the highest amount of the calcium phosphate phase, and is most suitable for the faster growth of cells and accelerated formation of apatite layers. Samples with calcium phosphate coatings do not cause hemolysis and have a low cytotoxicity index. The results of immersion in a solution simulating body fluid show that NiTi with the biphasic coating promotes apatite growth, which is beneficial for biological activity.
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Affiliation(s)
- Ekaterina S. Marchenko
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Gulsharat A. Baigonakova
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Kirill M. Dubovikov
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Oleg V. Kokorev
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Ivan I. Gordienko
- Department of Pediatric Surgery, Ural State Medical University, 620014 Yekaterinburg, Russia
| | - Ekaterina A. Chudinova
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
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Polymer/Ceramic Nanocomposite Fibers in Bone Tissue Engineering. ADVANCES IN POLYMER SCIENCE 2023. [DOI: 10.1007/12_2023_145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Novel Whitlockite/Alginate/C60 Fullerene Composites: Synthesis, Characterization and Properties for Medical Application. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-06552-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Zhang Y, Wu D, Zhao X, Pakvasa M, Tucker AB, Luo H, Qin KH, Hu DA, Wang EJ, Li AJ, Zhang M, Mao Y, Sabharwal M, He F, Niu C, Wang H, Huang L, Shi D, Liu Q, Ni N, Fu K, Chen C, Wagstaff W, Reid RR, Athiviraham A, Ho S, Lee MJ, Hynes K, Strelzow J, He TC, El Dafrawy M. Stem Cell-Friendly Scaffold Biomaterials: Applications for Bone Tissue Engineering and Regenerative Medicine. Front Bioeng Biotechnol 2020; 8:598607. [PMID: 33381499 PMCID: PMC7767872 DOI: 10.3389/fbioe.2020.598607] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/27/2020] [Indexed: 02/06/2023] Open
Abstract
Bone is a dynamic organ with high regenerative potential and provides essential biological functions in the body, such as providing body mobility and protection of internal organs, regulating hematopoietic cell homeostasis, and serving as important mineral reservoir. Bone defects, which can be caused by trauma, cancer and bone disorders, pose formidable public health burdens. Even though autologous bone grafts, allografts, or xenografts have been used clinically, repairing large bone defects remains as a significant clinical challenge. Bone tissue engineering (BTE) emerged as a promising solution to overcome the limitations of autografts and allografts. Ideal bone tissue engineering is to induce bone regeneration through the synergistic integration of biomaterial scaffolds, bone progenitor cells, and bone-forming factors. Successful stem cell-based BTE requires a combination of abundant mesenchymal progenitors with osteogenic potential, suitable biofactors to drive osteogenic differentiation, and cell-friendly scaffold biomaterials. Thus, the crux of BTE lies within the use of cell-friendly biomaterials as scaffolds to overcome extensive bone defects. In this review, we focus on the biocompatibility and cell-friendly features of commonly used scaffold materials, including inorganic compound-based ceramics, natural polymers, synthetic polymers, decellularized extracellular matrix, and in many cases, composite scaffolds using the above existing biomaterials. It is conceivable that combinations of bioactive materials, progenitor cells, growth factors, functionalization techniques, and biomimetic scaffold designs, along with 3D bioprinting technology, will unleash a new era of complex BTE scaffolds tailored to patient-specific applications.
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Affiliation(s)
- Yongtao Zhang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Di Wu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Ministry of Education Key Laboratory of Diagnostic Medicine, The School of Laboratory Medicine and the Affiliated Hospitals, Chongqing Medical University, Chongqing, China
| | - Xia Zhao
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Mikhail Pakvasa
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Andrew Blake Tucker
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Huaxiu Luo
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Department of Burn and Plastic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Kevin H. Qin
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Daniel A. Hu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Eric J. Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Alexander J. Li
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Meng Zhang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yukun Mao
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Departments of Orthopaedic Surgery and Neurosurgery, The Affiliated Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Maya Sabharwal
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Fang He
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Changchun Niu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Department of Laboratory Diagnostic Medicine, The Affiliated Hospital of the University of Chinese Academy of Sciences, Chongqing General Hospital, Chongqing, China
| | - Hao Wang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Ministry of Education Key Laboratory of Diagnostic Medicine, The School of Laboratory Medicine and the Affiliated Hospitals, Chongqing Medical University, Chongqing, China
| | - Linjuan Huang
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Ministry of Education Key Laboratory of Diagnostic Medicine, The School of Laboratory Medicine and the Affiliated Hospitals, Chongqing Medical University, Chongqing, China
| | - Deyao Shi
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Department of Orthopaedic Surgery, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Liu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Na Ni
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Ministry of Education Key Laboratory of Diagnostic Medicine, The School of Laboratory Medicine and the Affiliated Hospitals, Chongqing Medical University, Chongqing, China
| | - Kai Fu
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Departments of Orthopaedic Surgery and Neurosurgery, The Affiliated Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Connie Chen
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - William Wagstaff
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Russell R. Reid
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
- Department of Surgery Section of Plastic and Reconstructive Surgery, The University of Chicago Medical Center, Chicago, IL, United States
| | - Aravind Athiviraham
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Sherwin Ho
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Michael J. Lee
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Kelly Hynes
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Jason Strelzow
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Tong-Chuan He
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
| | - Mostafa El Dafrawy
- Molecular Oncology Laboratory, Department of Orthopaedic Surgery and Rehabilitation Medicine, The University of Chicago Medical Center, Chicago, IL, United States
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Modak P, Hammond W, Jaffe M, Nadig M, Russo R. Dynamic, 3DSchiff base networks for medical applications. J Appl Polym Sci 2020. [DOI: 10.1002/app.49756] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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10
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Functionalization of Silk Fibers by PDGF and Bioceramics for Bone Tissue Regeneration. COATINGS 2019. [DOI: 10.3390/coatings10010008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Bone regeneration is a complex, well-organized physiological process of bone formation observed during normal fracture healing and involved in continuous remodeling throughout adult life. An ideal medical device for bone regeneration requires interconnected pores within the device to allow for penetration of blood vessels and cells, enabling material biodegradation and bone ingrowth. Additional mandatory characteristics include an excellent resorption rate, a 3D structure similar to natural bone, biocompatibility, and customizability to multiple patient-specific geometries combined with adequate mechanical strength. Therefore, endless silk fibers were spun from native silk solution isolated from silkworm larvae and functionalized with osteoconductive bioceramic materials. In addition, transgenic silkworms were generated to functionalize silk proteins with human platelet-derived growth factor (hPDGF). Both, PDGF-silk and bioceramic modified silk were then assembled into 3D textile implants using an additive manufacturing approach. Textile implants were characterized in terms of porosity, compressive strength, and cyclic load. In addition, osteogenic differentiation of mesenchymal stem cells was evaluated. Silk fiber-based 3D textile implants showed good cytocompatibility and stem cells cultured on bioceramic material functionalized silk implants were differentiating into bone cells. Thus, functionalized 3D interconnected porous textile scaffolds were shown to be promising biomaterials for bone regeneration.
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Entekhabi E, Haghbin Nazarpak M, Sedighi M, Kazemzadeh A. Predicting degradation rate of genipin cross-linked gelatin scaffolds with machine learning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110362. [PMID: 31761181 DOI: 10.1016/j.msec.2019.110362] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/05/2019] [Accepted: 10/22/2019] [Indexed: 10/25/2022]
Abstract
Genipin can improve weak mechanical properties and control high degradation rate of gelatin, as a cross-linker of gelatin which is widely used in tissue engineering. In this study, genipin cross-linked gelatin biodegradable porous scaffolds with different weight percentages of gelatin and genipin were prepared for tissue regeneration and measurement of their various properties including morphological characteristics, mechanical properties, swelling, degree of crosslinking and degradation rate. Results indicated that the sample containing the highest amount of gelatin and genipin had the highest degree of crosslinking and increasing the percentage of genipin from 0.125% to 0.5% enhances ultimate tensile strength (UTS) up to 113% and 92%, for samples with 2.5% and 10% gelatin, respectively. For these samples, increasing the percentage of genipin, reduce their degradation rate significantly with an average value of 124%. Furthermore, experimental data are used to develop a machine learning model, which compares artificial neural networks (ANN) and kernel ridge regression (KRR) to predict degradation rate of genipin-cross-linked gelatin scaffolds as a property of interest. The predicted degradation rate demonstrates that the ANN, with mean squared error (MSE) of 2.68%, outperforms the KRR with MSE = 4.78% in terms of accuracy. These results suggest that machine learning models offer an excellent prediction accuracy to estimate the degradation rate which will significantly help reducing experimental costs needed to carry out scaffold design.
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Affiliation(s)
- Elahe Entekhabi
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | | | - Mehdi Sedighi
- New Technologies Research Center (NTRC), Amirkabir University of Technology, Tehran, Iran; Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran
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Xue A, Zheng L, Tan G, Wu S, Wu Y, Cheng L, Qu J. Genipin-Crosslinked Donor Sclera for Posterior Scleral Contraction/Reinforcement to Fight Progressive Myopia. Invest Ophthalmol Vis Sci 2019; 59:3564-3573. [PMID: 30025077 DOI: 10.1167/iovs.17-23707] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Myopia has become a global public health problem, particularly in East Asia where myopic retinopathy has become one of the leading causes of blindness and visual impairment in the elderly population. The purpose of this study was to evaluate the efficacy of posterior scleral contraction/reinforcement (PSCR) surgery on controlling the progressive elongation of axial length of highly myopic eyes in young patients. Methods This is a prospective self-controlled interventional case series. Forty young patients (<18-years old) with progressive high myopia received PSCR with a genipin-crosslinked donor scleral strip for one eye and the fellow eye served as concurrent control without surgery. The main outcome measurement was the change of axial length over 2 to 3 years of follow-up. Results Immediately after the surgery, axial length was shortened and subsequently increased by 0.32 mm over the follow-up period. In contrast, axial length of the fellow eyes increased by 0.82 mm over the same period (P < 0.001, paired t-test). PSCR delayed axial elongation in eyes with or without staphyloma. No significant change of visual acuity, cornea refractive power, or retina thickness was noted between the surgery and fellow eyes. None of the patients lost visual acuity compared with the baseline. The procedure was well tolerated with only temporary corneal refractive axis shifts that recovered by the 6-month postsurgical visit. Conclusions PSCR with genipin-crosslinked sclera is safe and effective to restrain eye globe elongation in young patients within a 2- to 3-year follow-up period.
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Affiliation(s)
- Anquan Xue
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical College, Zhejiang, China
| | - Linyan Zheng
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical College, Zhejiang, China
| | - Guilin Tan
- Institute of Ocular Pharmacology, School of Ophthalmology and Optometry, Wenzhou Medical University, Zhejiang, China
| | - Shaoqun Wu
- Institute of Ocular Pharmacology, School of Ophthalmology and Optometry, Wenzhou Medical University, Zhejiang, China
| | - Yue Wu
- Institute of Ocular Pharmacology, School of Ophthalmology and Optometry, Wenzhou Medical University, Zhejiang, China
| | - Lingyun Cheng
- Institute of Ocular Pharmacology, School of Ophthalmology and Optometry, Wenzhou Medical University, Zhejiang, China.,Jacob's Retina Center at Shiley Eye Institute, Department of Ophthalmology, University of California San Diego, San Diego, California, United States
| | - Jia Qu
- Eye Hospital and School of Ophthalmology and Optometry, Wenzhou Medical College, Zhejiang, China
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Jeong J, Kim JH, Shim JH, Hwang NS, Heo CY. Bioactive calcium phosphate materials and applications in bone regeneration. Biomater Res 2019; 23:4. [PMID: 30675377 PMCID: PMC6332599 DOI: 10.1186/s40824-018-0149-3] [Citation(s) in RCA: 390] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 12/07/2018] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Bone regeneration involves various complex biological processes. Many experiments have been performed using biomaterials in vivo and in vitro to promote and understand bone regeneration. Among the many biomaterials, calcium phosphates which exist in the natural bone have been conducted a number of studies because of its bone regenerative property. It can be directly contributed to bone regeneration process or assist in the use of other biomaterials. Therefore, it is widely used in many applications and has been continuously studied. MAINBODY Calcium phosphate has been widely used in bone regeneration applications because it shows osteoconductive and in some cases osteoinductive features. The release of calcium and phosphorus ions regulates the activation of osteoblasts and osteoclasts to facilitate bone regeneration. The control of surface properties and porosity of calcium phosphate affects cell/protein adhesion and growth and regulates bone mineral formation. Properties affecting bioactivity vary depending on the types of calcium phosphates such as HAP, TCP and can be utilized in various applications because of differences in ion release, solubility, stability, and mechanical strength. In order to make use of these properties, different calcium phosphates have been used together or mixed with other materials to complement their disadvantages and to highlight their advantages. Calcium phosphate has been utilized to improve bone regeneration in ways such as increasing osteoconductivity for bone ingrowth, enhancing osteoinductivity for bone mineralization with ion release control, and encapsulating drugs or growth factors. CONCLUSION Calcium phosphate has been used for bone regeneration in various forms such as coating, cement and scaffold based on its unique bioactive properties and bone regeneration effectiveness. Additionally, several studies have been actively carried out to improve the efficacy of calcium phosphate in combination with various healing agents. By summarizing the properties of calcium phosphate and its research direction, we hope that calcium phosphate can contribute to the clinical treatment approach for bone defect and disease.
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Affiliation(s)
- Jiwoon Jeong
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 152-742 Republic of Korea
| | - Jung Hun Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742 Republic of Korea
| | - Jung Hee Shim
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Nathaniel S. Hwang
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 152-742 Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 151-742 Republic of Korea
- N-Bio/BioMAX Institute, Seoul National University, Seoul, 152-742 Republic of Korea
| | - Chan Yeong Heo
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 152-742 Republic of Korea
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Nouri-Felekori M, Khakbiz M, Nezafati N, Mohammadi J, Eslaminejad MB. Comparative analysis and properties evaluation of gelatin microspheres crosslinked with glutaraldehyde and 3-glycidoxypropyltrimethoxysilane as drug delivery systems for the antibiotic vancomycin. Int J Pharm 2018; 557:208-220. [PMID: 30597262 DOI: 10.1016/j.ijpharm.2018.12.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/01/2018] [Accepted: 12/17/2018] [Indexed: 11/30/2022]
Abstract
In the present comparative study, gelatin microspheres (GMs) were prepared by emulsification-solvent-extraction method using well-known crosslinker: glutaraldehyde (GA) and biocompatible silane-coupling agent: glycidoxypropyltrimethoxysilane (GPTMS). Crosslinking with GA was done by a definite and common procedure, while GPTMS crosslinking potency was investigated after 5, 10, 24, and 48 h synthesis periods and the fabrication method was adjusted in order for preparation of GMs with optimized morphological and compositional characteristics. The prepared GMs were then evaluated and compared as drug delivery systems for the antibiotic vancomycin (Vm). Morphological observations, FTIR, ninhydrin assay, swelling behavior evaluation and Hydrolytic degradation analysis proved successful modification of GMs and revealed that increasing synthesis time from 5 h to 24 h and 48 h, when using GPTMS as crosslinker, led to formation of morphologically-optimized GMs with highest crosslinking degree (∼50%) and the slowest hydrolytic degradation rate. Such GMs also exhibited most sustained release period of Vm. The antibacterial test results against gram-positive bacterium Staphylococcus aureus, were in accordance with the release profiles of Vm, as well. Together, GPTMS-crosslinked GMs with their preferable characteristics and known as biocompatible gelatin-siloxane hybrids, could act as proper drug delivery systems for the sustained release of the antibiotic vancomycin.
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Affiliation(s)
- Mohammad Nouri-Felekori
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran.
| | - Nader Nezafati
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Karaj, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Gobinathan S, Zainol SS, Azizi SF, Iman NM, Muniandy R, Hasmad HN, Yusof MRB, Husain S, Abd Aziz H, Lokanathan Y. Decellularization and genipin crosslinking of amniotic membrane suitable for tissue engineering applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:2051-2067. [PMID: 29983100 DOI: 10.1080/09205063.2018.1485814] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Amniotic membrane has the potential to be used as scaffold in various tissue engineering applications. However, increasing its biostability at the same time maintaining its biocompatibility is important to enhance its usage as a scaffold. This studied characteristics genipin-crosslinked amniotic membrane as a bioscaffold. Redundant human amniotic membranes (HAM) divided into native (nAM), decellularized (dAM) and genipin-crosslinked (clAM) groups. The dAM and clAM group were decellularized using thermolysin (TL) and sodium hydroxide (NaOH) solution. Next, clAM group was crosslinked with 0.5% and 1.0% (w/v) genipin. The HAM was then studied for in vitro degradation, percentage of swelling, optical clarity, ultrastructure and mechanical strength. Meanwhile, fibroblasts isolated from nasal turbinates were then seeded onto nAM, dAM and clAM for biocompatibility studies. clAM had the slowest degradation rate and were still morphologically intact after 30 days of incubation in 0.01% collagenase type 1 solution. The dAM had a significantly highest percentage of swelling than other groups (p < 0.05). Besides, the dAM retained the collagen content at similar level of nAM. Although the dAM had highest mechanical strength compared to the rest of the groups, the differences were statistically insignificant. Cell attachment on dAM and 0.5% clAM was higher compared to that on nAM and 1.0% clAM. In conclusion, clAM have better biostability and biocompatibility compared to the nAM and dAM. Together with other suitable characteristics of the clAM such as percentage of swelling, structural integrity and ECM content, clAM is suitable as scaffold for various tissue engineering applications.
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Affiliation(s)
- Sarumathi Gobinathan
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Siti Solehah Zainol
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Siti Fatmah Azizi
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Nabil Mohamad Iman
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Rajasegaran Muniandy
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Hanis Nazihah Hasmad
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | | | - Salina Husain
- c Department of Otorhinolaryngology-Head and Neck Surgery, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Haslinda Abd Aziz
- d Department of Obstetrics and Gynaecology, Faculty of Medicine Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Yogeswaran Lokanathan
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
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Ham DW, Son TI, Lee TJ, Song KS. Osteogenic effectiveness of photo-immobilized bone morphogenetic protein-2 using different azidophenyl-natural polymer carriers in rat calvarial defect model. Int J Biol Macromol 2018; 121:333-341. [PMID: 30300698 DOI: 10.1016/j.ijbiomac.2018.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 09/20/2018] [Accepted: 10/05/2018] [Indexed: 11/25/2022]
Abstract
The osteogenetic potential of photo-immobilized azdiophenyl (Az)-natural polymers as a carrier of bone morphogenetic protein-2 (BMP-2) was assessed in 56 rats randomized to four groups. The control group comprised implanted collagen sheet with BMP-2. In the three experimental groups, the implant comprised collagen sheet with photo-immobilized BMP-2 on Az-gelatin (Az-Gel), Az-O-carboxymethyl chitosan (Az-OMC), or Az‑O‑carboxymethyl low molecular chitosan (Az-LMC). Micro-computed tomography analysis revealed more regenerated bone in Az-Gel at 8weeks. Immunohistochemical analysis at 4weeks revealed that the positively expressed cellular ratio in RUNX2-stained cells was significantly higher in Az-Gel and Az-OMC groups. At 8weeks, only the Az-Gel group showed higher positively expressed cellular ratio compared with the control group. These results demonstrate the superior osteogenetic potential of photo-immobilized BMP-2 using Az-Gel carrier in a rat calvarial defect model compared with control group. Photo-immobilization of BMP-2 using Az-gelatin could be a more effective carrier system of BMP-2 than a chitosan-based carrier system.
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Affiliation(s)
- Dae Woong Ham
- Department of Orthopaedic Surgery, Chung-Ang University Hospital, College of Medicine, 224-1 Heukseok-dong, Dongjak-gu, Seoul 06973, South Korea
| | - Tae-Il Son
- Department of Systems Biotechnology, Chung-Ang University, Anseong-si, Gyenggi-do, South Korea
| | - Tae Jin Lee
- Department of Pathology, Chung-Ang University Hospital, College of Medicine, 224-1 Heukseok-dong, Dongjak-gu, Seoul 06973, South Korea
| | - Kwang-Sup Song
- Department of Orthopaedic Surgery, Chung-Ang University Hospital, College of Medicine, 224-1 Heukseok-dong, Dongjak-gu, Seoul 06973, South Korea.
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17
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Campodoni E, Heggset EB, Rashad A, Ramírez-Rodríguez GB, Mustafa K, Syverud K, Tampieri A, Sandri M. Polymeric 3D scaffolds for tissue regeneration: Evaluation of biopolymer nanocomposite reinforced with cellulose nanofibrils. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:867-878. [PMID: 30423774 DOI: 10.1016/j.msec.2018.10.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 07/30/2018] [Accepted: 10/04/2018] [Indexed: 10/28/2022]
Abstract
Biopolymers such as gelatin (Gel) and cellulose nanofibrils (CNF) have many of the essential requirements for being used as scaffolding materials in tissue regeneration; biocompatibility, surface chemistry, ability to generate homogeneous hydrogels and 3D structures with suitable pore size and interconnection, which allows cell colonization and proliferation. The purpose of this study was to investigate whether the mechanical behaviour of the Gel matrix can be improved by means of functionalization with cellulose nanofibrils and proper cross-linking treatments. Blending processes were developed to achieve a polymer nanocomposite incorporating the best features of both biopolymers: biomimicry of the Gel and structural reinforcement by the CNF. The designed 3D structures underline interconnected porosity achieved by freeze-drying process, improved mechanical properties and chemical stability that are tailored by CNF addition and different cross-linking approaches. In vitro evaluations reveal the preservation of the biocompatibility of Gel and its good interaction with cells by promoting cell colonization and proliferation. The results support the addition of cellulose nanofibrils to improve the mechanical behaviour of 3D porous structures suitable as scaffolding for tissue regeneration.
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Affiliation(s)
- Elisabetta Campodoni
- Institute of Science and Technology for Ceramics-National Research Council (ISTEC-CNR), Faenza, Italy.
| | | | - Ahmad Rashad
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Gloria B Ramírez-Rodríguez
- BioNanoMetals Group, Department of Inorganic Chemistry, Facultad de Ciencias, Universidad de Granada, Granada
| | - Kamal Mustafa
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Kristin Syverud
- RISE-PFI, Trondheim, Norway; Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics-National Research Council (ISTEC-CNR), Faenza, Italy
| | - Monica Sandri
- Institute of Science and Technology for Ceramics-National Research Council (ISTEC-CNR), Faenza, Italy.
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19
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On-line monitoring of in-vitro oral bioaccessibility tests as front-end to liquid chromatography for determination of chlorogenic acid isomers in dietary supplements. Talanta 2017; 166:391-398. [DOI: 10.1016/j.talanta.2015.12.082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 12/30/2015] [Accepted: 12/31/2015] [Indexed: 11/18/2022]
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Wang Y, Bao J, Wu X, Wu Q, Li Y, Zhou Y, Li L, Bu H. Genipin crosslinking reduced the immunogenicity of xenogeneic decellularized porcine whole-liver matrices through regulation of immune cell proliferation and polarization. Sci Rep 2016; 6:24779. [PMID: 27098308 PMCID: PMC4838870 DOI: 10.1038/srep24779] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 04/05/2016] [Indexed: 02/05/2023] Open
Abstract
Decellularized xenogeneic whole-liver matrices are plausible biomedical materials for the bioengineering of liver transplantation. A common method to reduce the inflammatory potential of xenogeneic matrices is crosslinking. Nevertheless, a comprehensive analysis of the immunogenic features of cross-linked decellularized tissue is still lacking. We aimed to reduce the immunogenicity of decellularized porcine whole-liver matrix through crosslinking with glutaraldehyde or genipin, a new natural agent, and investigated the mechanism of the immune-mediated responses. The histologic assessment of the host's immune reaction activated in response to these scaffolds, as well as the M1/M2 phenotypic polarization profile of macrophages, was studied in vivo. The genipin-fixed scaffold elicited a predominantly M2 phenotype response, while the glutaraldehyde-fixed scaffold resulted in disrupted host tissue remodeling and a mixed macrophage polarization profile. The specific subsets of immune cells involved in the responses to the scaffolds were identified in vitro. Crosslinking alleviated the host response by reducing the proliferation of lymphocytes and their subsets, accompanied by a decreased release of both Th1 and Th2 cytokines. Therefore, we conclude that the natural genipin crosslinking could lower the immunogenic potential of xenogeneic decellularized whole-liver scaffolds.
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Affiliation(s)
- Yujia Wang
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ji Bao
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiujuan Wu
- Department of General Surgery, The first people’s hospital of Yibin, Yibin, 644000, China
| | - Qiong Wu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yi Li
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yongjie Zhou
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Li Li
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Hong Bu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
- Key Laboratory of Transplant Engineering and Immunology, Ministry of Health, West China Hospital, Sichuan University, Chengdu, 610041, China
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, 610041, China
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Lee JH, Lee YJ, Cho HJ, Kim DW, Shin H. The incorporation of bFGF mediated by heparin into PCL/gelatin composite fiber meshes for guided bone regeneration. Drug Deliv Transl Res 2016; 5:146-59. [PMID: 25787740 DOI: 10.1007/s13346-013-0154-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The concept of guided bone regeneration facilitated by barrier membranes has been widely considered to achieve enhanced bone healing in maxillofacial surgery. However, the currently available membranes are limited in their active regulation of cellular activities. In this study, we fabricated polycaprolactone/gelatin composite electrospun nanofibers incorporated with basic fibroblast growth factor (bFGF) to direct bone regeneration. The fibrous morphology was maintained after the crosslinking and subsequent conjugation of heparin. Release of bFGF from electrospun nanofibers without heparin resulted in a spontaneous burst, while the heparin-mediated release of bFGF decreased the burst release in 24 h. The bFGF released from the nanofibers enhanced the proliferation and migration of human mesenchymal stem cells as well as the tubule formation of human umbilical cord blood cells. The subcutaneous implantation of fibers incorporated with bFGF mobilized a large number of cells positive for CD31 and smooth muscle alpha actin within 2 weeks. The effect of the nanofibers incorporated with bFGF on bone regeneration was evaluated on a calvarial critical size defect model. As compared to the mice that received fibers without bFGF, which presented minimal new bone formation (5.36 ± 3.4 % of the defect), those that received implants of heparinized nanofibers incorporated with 50 or 100 ng/mL bFGF significantly enhanced new bone formation (10.82 ± 2.2 and 17.55 ± 6.08 %). Taken together, our results suggest that the electrospun nanofibers incorporating bFGF have the potential to be used as an advanced membrane that actively enhances bone regeneration.
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Affiliation(s)
- Ji-hye Lee
- Department of Bioengineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul, 133-791, South Korea
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McGann ME, Bonitsky CM, Jackson ML, Ovaert TC, Trippel SB, Wagner DR. Genipin crosslinking of cartilage enhances resistance to biochemical degradation and mechanical wear. J Orthop Res 2015; 33:1571-1579. [PMID: 25939430 PMCID: PMC4591111 DOI: 10.1002/jor.22939] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/29/2015] [Indexed: 02/04/2023]
Abstract
Collagen crosslinking enhances many beneficial properties of articular cartilage, including resistance to chemical degradation and mechanical wear, but many crosslinking agents are cytotoxic. The purpose of this study was to evaluate the effectiveness of genipin, a crosslinking agent with favorable biocompatibility and cytotoxicity, as a potential treatment to prevent the degradation and wear of articular cartilage. First, the impact of genipin concentration and treatment duration on the viscoelastic properties of bovine articular cartilage was quantified. Next, two short-term (15 min) genipin crosslinking treatments were chosen, and the change in collagenase digestion, cartilage wear, and the friction coefficient of the tissue with these treatments was measured. Finally, chondrocyte viability after exposure to these genipin treatments was assessed. Genipin treatment increased the stiffness of healthy, intact cartilage in a dose-dependent manner. The 15-min crosslinking treatments improved cartilage's resistance to both chemical degradation, particularly at the articular surface, and to damage due to mechanical wear. These enhancements were achieved without sacrificing the low coefficient of friction of the tissue and at a genipin dose that preserved chondrocyte viability. The results of this study suggest that collagen crosslinking via genipin may be a promising preventative treatment to slow the degradation of cartilage.
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Affiliation(s)
- Megan E. McGann
- Department of Aerospace and Mechanical Engineering, University of Notre Dame
| | - Craig M. Bonitsky
- Department of Aerospace and Mechanical Engineering, University of Notre Dame
| | - Mariah L. Jackson
- Department of Aerospace and Mechanical Engineering, University of Notre Dame
| | - Timothy C. Ovaert
- Department of Aerospace and Mechanical Engineering, University of Notre Dame
| | | | - Diane R. Wagner
- Department of Aerospace and Mechanical Engineering, University of Notre Dame
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Woo HD, Park KT, Kim EH, Heo Y, Jeong JH, Pyun DG, Choi CS, Lee JG, Han DK, Nah JW, Son TI. Preparation of UV-curable gelatin derivatives for drug immobilization on polyurethane foam: Development of wound dressing foam. Macromol Res 2015. [DOI: 10.1007/s13233-015-3131-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Li L, Guo Y, Zhao L, Zu Y, Gu H, Yang L. Enzymatic Hydrolysis and Simultaneous Extraction for Preparation of Genipin from Bark of Eucommia ulmoides after Ultrasound, Microwave Pretreatment. Molecules 2015; 20:18717-31. [PMID: 26501242 PMCID: PMC6332333 DOI: 10.3390/molecules201018717] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/22/2015] [Accepted: 10/12/2015] [Indexed: 11/16/2022] Open
Abstract
A continuous process based on the combination of ultrasounds and/or microwaves pretreatments followed by enzymatic hydrolysis and simultaneous extraction (EHSE) has been proposed to recover genipin from Eucommia ulmoides bark. At first, in the pretreatment step, the mixture of 1.0 g dried bark powder and 10 mL deionized water were irradiated by microwave under 500 W for 10 min. Then, in hydrolysis step, the optimal conditions were as follows: 0.5 mg/mL of cellulase concentration, 4.0 pH of enzyme solution, 24 h of incubation time and 40 °C of incubation temperature. After incubation, 10 mL ethanol was added to extract genipin for 30 min by ultrasound. After EHSE treatment, the yield of genipin could reach 1.71 μmol/g. Moreover, scanning electron micrographs illustrated that severe structural disruption of plant was obtained by EHSE. The results indicated that the EHSE method provided a good alternative for the preparation of genipin from Eucommia ulmoides bark as well as other herbs.
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Affiliation(s)
- Lili Li
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
- State Engineering Laboratory for Bioresource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Yupin Guo
- College of Animal Science and Technology, Hebei North University, Zhangjiakou 075000, China.
| | - Lianfei Zhao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
- State Engineering Laboratory for Bioresource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Yuangang Zu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
- State Engineering Laboratory for Bioresource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
| | - Huiyan Gu
- School of Forestry, Northeast Forestry University, Harbin 150040, China.
| | - Lei Yang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
- State Engineering Laboratory for Bioresource Eco-Utilization, Northeast Forestry University, Harbin 150040, China.
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Fu YT, Sheu SY, Chen YS, Chen KY, Yao CH. Porous gelatin/tricalcium phosphate/genipin composites containing lumbrokinase for bone repair. Bone 2015; 78:15-22. [PMID: 25933942 DOI: 10.1016/j.bone.2015.04.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 04/16/2015] [Accepted: 04/22/2015] [Indexed: 01/22/2023]
Abstract
Bone cell activities are very important in bone remodeling. This study investigates the effects of lumbrokinase on bone cell activities in cultures. Moreover, a biodegradable composite (GGT) containing genipin-crosslinked gelatin and β-tricalcium phosphate was prepared to carry lumbrokinase (GGTLK). Rat calvarial bone defects were filled with GGT and GGTLK composites. Bone healing was monitored in vivo by bioluminescence imaging and micro-CT. Lumbrokinase was found to have a dose-dependent effect on bone cell activities. Low concentrations (<1μg/ml) of lumbrokinase increased the viability, total alkaline phosphatase activity and mobility of osteoblasts, the number of total calcified nodules and the expression of osteopontin and osteocalcin; however, they considerably reduced the total tartrate-resistant acid phosphatase activity of osteoclasts. IVIS images revealed a stronger fluorescent signal in GGTLK-treated animals than in GGT-treated animals. Micro-CT analysis revealed that GGTLK induced more new bone formation than did GGT. These observations suggest that lumbrokinase released from GGTLK composite can enhance bone tissue regeneration.
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Affiliation(s)
- Yuan-Tsung Fu
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Department of Chinese Medicine, Taichung Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, Taichung 40427, Taiwan
| | - Shi-Yuan Sheu
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; School of Medicine, Chung Shan Medical University, Taichung 40201, Taiwan; Department of Integrated Chinese and Western Medicine, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Yueh-Sheng Chen
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan
| | - Kuo-Yu Chen
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan.
| | - Chun-Hsu Yao
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan; Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung 40402, Taiwan; Department of Biomedical Informatics, Asia University, Taichung 41354, Taiwan.
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Dorozhkin SV. Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications. J Funct Biomater 2015; 6:708-832. [PMID: 26262645 PMCID: PMC4598679 DOI: 10.3390/jfb6030708] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 12/30/2022] Open
Abstract
The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.
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27
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Wang WL, Sheu SY, Chen YS, Kao ST, Fu YT, Kuo TF, Chen KY, Yao CH. Enhanced Bone Tissue Regeneration by Porous Gelatin Composites Loaded with the Chinese Herbal Decoction Danggui Buxue Tang. PLoS One 2015; 10:e0131999. [PMID: 26126113 PMCID: PMC4488343 DOI: 10.1371/journal.pone.0131999] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 05/26/2015] [Indexed: 12/02/2022] Open
Abstract
Danggui Buxue Tang (DBT) is a traditional Chinese herbal decoction containing Radix Astragali and Radix Angelicae sinensis. Pharmacological results indicate that DBT can stimulate bone cell proliferation and differentiation. The aim of the study was to investigate the efficacy of adding DBT to bone substitutes on bone regeneration following bone injury. DBT was incorporated into porous composites (GGT) made from genipin-crosslinked gelatin and β-triclacium phosphates as bone substitutes (GGTDBT). The biological response of mouse calvarial bone to these composites was evaluated by in vivo imaging systems (IVIS), micro-computed tomography (micro-CT), and histology analysis. IVIS images revealed a stronger fluorescent signal in GGTDBT-treated defect than in GGT-treated defect at 8 weeks after implantation. Micro-CT analysis demonstrated that the level of repair from week 4 to 8 increased from 42.1% to 71.2% at the sites treated with GGTDBT, while that increased from 33.2% to 54.1% at GGT-treated sites. These findings suggest that the GGTDBT stimulates the innate regenerative capacity of bone, supporting their use in bone tissue regeneration.
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Affiliation(s)
- Wen-Ling Wang
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Chinese Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Shi-Yuan Sheu
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Integrated Chinese and Western Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yueh-Sheng Chen
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
| | - Shung-Te Kao
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Chinese Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Yuan-Tsung Fu
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Chinese Medicine, Taichung Tzu Chi Hospital, The Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
| | - Tzong-Fu Kuo
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
| | - Kuo-Yu Chen
- Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan
- * E-mail: (KYC); (CHY)
| | - Chun-Hsu Yao
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
- Department of Biomedical Imaging and Radiological Science, China Medical University, Taichung, Taiwan
- Department of Biomedical Informatics, Asia University, Taichung, Taiwan
- * E-mail: (KYC); (CHY)
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Gholipourmalekabadi M, Mozafari M, Gholipourmalekabadi M, Nazm Bojnordi M, Hashemi-soteh MB, Salimi M, Rezaei N, Sameni M, Samadikuchaksaraei A, Ghasemi Hamidabadi H. In vitroandin vivoevaluations of three-dimensional hydroxyapatite/silk fibroin nanocomposite scaffolds. Biotechnol Appl Biochem 2015; 62:441-50. [DOI: 10.1002/bab.1285] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 08/30/2014] [Indexed: 11/09/2022]
Affiliation(s)
| | - Masoud Mozafari
- Bioengineering Research Group; Nanotechnology and Advanced Materials Department; Materials and Energy Research Center (MERC); Tehran Iran
| | - Mahdieh Gholipourmalekabadi
- Cellular & Molecular Research Center; Department of Anatomy & Cell Biology; Faculty of Medicine; Mazandaran University of Medical Sciences; Sari Iran
| | - Maryam Nazm Bojnordi
- Cellular & Molecular Research Center; Department of Anatomy & Cell Biology; Faculty of Medicine; Mazandaran University of Medical Sciences; Sari Iran
| | - Mohamad B. Hashemi-soteh
- Immuunogenetic Research Center, Faculty of Medicine; Mazandaran University of Medical Sciences; Sari Iran
| | - Maryam Salimi
- Department of Biology and Anatomical Sciences; Faculty of Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Nourollah Rezaei
- Cellular & Molecular Research Center; Department of Anatomy & Cell Biology; Faculty of Medicine; Mazandaran University of Medical Sciences; Sari Iran
| | - Marzieh Sameni
- Biotechnology Department; School of Medicine; Shahid Beheshti University of Medical Sciences; Tehran Iran
| | - Ali Samadikuchaksaraei
- Department of Tissue Engineering and Regenerative Medicine; Faculty of Advanced Technologies in Medicine; Iran University of Medical Sciences; Tehran Iran
- Cellular and Molecular Research Center; Iran University of Medical Sciences; Tehran Iran
- Department of Medical Biotechnology; Faculty of Allied Medicine; Iran University of Medical Sciences; Tehran Iran
| | - Hatef Ghasemi Hamidabadi
- Cellular & Molecular Research Center; Department of Anatomy & Cell Biology; Faculty of Medicine; Mazandaran University of Medical Sciences; Sari Iran
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Fu YT, Chen KY, Chen YS, Yao CH. Earthworm (Pheretima aspergillum) extract stimulates osteoblast activity and inhibits osteoclast differentiation. Altern Ther Health Med 2014; 14:440. [PMID: 25387689 PMCID: PMC4233063 DOI: 10.1186/1472-6882-14-440] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Accepted: 08/21/2014] [Indexed: 01/21/2023]
Abstract
Background The potential benefits of earthworm (Pheretima aspergillum) for healing have received considerable attention recently. Osteoblast and osteoclast activities are very important in bone remodeling, which is crucial to repair bone injuries. This study investigated the effects of earthworm extract on bone cell activities. Methods Osteoblast-like MG-63 cells and RAW 264.7 macrophage cells were used for identifying the cellular effects of different concentrations of earthworm extract on osteoblasts and osteoclasts, respectively. The optimal concentration of earthworm extract was determined by mitochondrial colorimetric assay, alkaline phosphatase activity, matrix calcium deposition, Western blotting and tartrate-resistant acid phosphatase activity. Results Earthworm extract had a dose-dependent effect on bone cell activities. The most effective concentration of earthworm extract was 3 mg/ml, significantly increasing osteoblast proliferation and differentiation, matrix calcium deposition and the expression levels of alkaline phosphatase, osteopontin and osteocalcin. Conversely, 3 mg/ml earthworm extract significantly reduced the tartrate-resistant acid phosphatase activity of osteoclasts without altering cell viability. Conclusions Earthworm extract has beneficial effects on bone cell cultures, indicating that earthworm extract is a potential agent for use in bone regeneration.
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Combination of hybrid peptide with biodegradable gelatin hydrogel for controlled release and enhancement of anti-tumor activity in vivo. J Control Release 2014; 176:1-7. [DOI: 10.1016/j.jconrel.2013.12.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 12/13/2013] [Accepted: 12/18/2013] [Indexed: 11/24/2022]
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31
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Reconstructive Effects of Percutaneous Electrical Stimulation Combined with GGT Composite on Large Bone Defect in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:607201. [PMID: 23818928 PMCID: PMC3681217 DOI: 10.1155/2013/607201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 04/19/2013] [Accepted: 05/01/2013] [Indexed: 11/18/2022]
Abstract
Previous studies have shown the electromagnetic stimulation improves bone remodeling and bone healing. However, the effect of percutaneous electrical stimulation (ES) was not directly explored. The purpose of this study was to evaluate effect of ES on improvement of bone repair. Twenty-four adult male Sprague-Dawley rats were used for cranial implantation. We used a composite comprising genipin cross-linked gelatin mixed with tricalcium phosphate (GGT). Bone defects of all rats were filled with the GGT composites, and the rats were assigned into six groups after operation. The first three groups underwent 4, 8, and 12 weeks of ES, and the anode was connected to the backward of the defect on the neck; the cathode was connected to the front of the defect on the head. Rats were under inhalation anesthesia during the stimulation. The other three groups only received inhalation anesthesia without ES, as control groups. All the rats were examined afterward at 4, 8, and 12 weeks. Radiographic examinations including X-ray and micro-CT showed the progressive bone regeneration in the both ES and non-ES groups. The amount of the newly formed bone increased with the time between implantation and examination in the ES and non-ES groups and was higher in the ES groups. Besides, the new bone growth trended on bilateral sides in ES groups and accumulated in U-shape in non-ES groups. The results indicated that ES could improve bone repair, and the effect is higher around the cathode.
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A novel porous gelatin composite containing naringin for bone repair. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:283941. [PMID: 23431335 PMCID: PMC3575669 DOI: 10.1155/2013/283941] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/15/2012] [Accepted: 12/22/2012] [Indexed: 11/17/2022]
Abstract
As Gu-Sui-Bu (GSB) is a commonly used Chinese medical herb for therapeutic treatment of bone-related diseases, naringin is its main active component. This study elucidates how various concentrations of naringin solution affect the activities of bone cells, based on colorimetric, alkaline phosphatase activity, nodule formation, and tartrate-resistant acid phosphatase activity assays to determine the optimal concentration of naringin. GGT composite was obtained by combining genipin cross-linked gelatin and β-tricalcium phosphate. GGTN composite was prepared by mixing GGT composite with the predetermined concentration of naringin. Porous GGT and GGTN composites were then made using a salt-leaching procedure. The potential of the composites in repairing bone defects was evaluated and compared in vivo by using the biological response of rabbit calvarial bone to these composites. Consequently, the most effective concentration of naringin was 10 mg/mL, which significantly enhanced the proliferation of osteoblasts, osteoclast activity, and nodule formation without affecting the alkaline phosphatase activity of osteoblasts and mitochondrial activity of mixed-bone cells. Radiographic analysis revealed greater new bone ingrowth in the GGTN composite than in the GGT composite at the same implantation time. Therefore, the GGTN composite is highly promising for use as a bone graft material.
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33
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Pandey SK, Haldar C, Patel DK, Maiti P. Biodegradable Polymers for Potential Delivery Systems for Therapeutics. MULTIFACETED DEVELOPMENT AND APPLICATION OF BIOPOLYMERS FOR BIOLOGY, BIOMEDICINE AND NANOTECHNOLOGY 2013. [DOI: 10.1007/12_2012_198] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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34
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Bone scaffolds with homogeneous and discrete gradient mechanical properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:28-36. [DOI: 10.1016/j.msec.2012.07.046] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2011] [Revised: 06/29/2012] [Accepted: 07/30/2012] [Indexed: 11/18/2022]
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35
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Protein- and peptide-based electrospun nanofibers in medical biomaterials. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2012; 8:1242-62. [DOI: 10.1016/j.nano.2012.02.013] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 02/20/2012] [Accepted: 02/24/2012] [Indexed: 11/18/2022]
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36
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Chen KY, Dong GC, Hsu CY, Chen YS, Yao CH. Autologous bone marrow stromal cells loaded onto porous gelatin scaffolds containingDrynaria fortuneiextract for bone repair. J Biomed Mater Res A 2012; 101:954-62. [DOI: 10.1002/jbm.a.34397] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2011] [Revised: 05/25/2012] [Accepted: 06/26/2012] [Indexed: 12/31/2022]
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Zhou J, Fang T, Wang Y, Dong J. The controlled release of vancomycin in gelatin/β-TCP composite scaffolds. J Biomed Mater Res A 2012; 100:2295-301. [PMID: 22499502 DOI: 10.1002/jbm.a.34170] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 02/15/2012] [Accepted: 02/29/2012] [Indexed: 11/08/2022]
Abstract
Osteomyelitis remains a difficult infection to treat for orthopaedic surgeons regardless of the continuous advances in surgical techniques and antimicrobial agents. The controlled release of vancomycin from local delivery system is a promising method for eliminating infection. In this study, biodegradable gelatin sponge containing different contents of β-tricalcium phosphate ceramic (β-TCP) was prepared for the controlled-release of vancomycin. We aimed to confirm the composite scaffolds could be used as a vancomycin sustained-release system. Examinations of scanning electron microscopy, Fourier transform infrared spectroscopy, mechanical properties, and in vivo drug release were performed. The results showed that the composite scaffolds could achieve local therapeutic drug levels over an extended duration. Taking consideration of porosity, interconnection, mechanical properties, and controlled release performance, the composite gelatin scaffold containing 30% β-TCP granules may be a good candidate for the controlled release of vancomycin in the treatment of chronic osteomyelitis.
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Affiliation(s)
- Jian Zhou
- Department of Orthopaedic Surgery, Zhongshan Hospital, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200032, China
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38
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Lu MC, Hsiang SW, Lai TY, Yao CH, Lin LY, Chen YS. Influence of cross-linking degree of a biodegradable genipin-cross-linked gelatin guide on peripheral nerve regeneration. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 18:843-63. [PMID: 17688744 DOI: 10.1163/156856207781367747] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We evaluated peripheral nerve regeneration using biodegradable genipin-cross-linked gelatin nerve conduits (GGCs) with three different cross-linking degrees, 24, 36 and 51%. Biocompatibility and biodegradability of the GGC and its efficiency as a guidance channel were examined based on the repair process of a 10-mm gap in the rat sciatic nerve. From this pilot study we concluded that GGCs with a mean cross-linking degree of 36% can ensure nerve regeneration with a more mature structure, as demonstrated by better developed epineural and perineural organisation and axonal development, as well as better-recovered electrophysiology with a relatively positive sciatic functional index and a shorter latency of the muscle action potential curve. Regenerated nerves in the GGCs with mean cross-linking degrees of 24 and 51% were less favourable, due to irritation caused by degradation material and compression by the remaining tube walls, respectively.
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Affiliation(s)
- Ming-Chin Lu
- School of Post-Baccalaureat Chinese Medicine, China Medical University, Taichung, Taiwan
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Shadanbaz S, Dias GJ. Calcium phosphate coatings on magnesium alloys for biomedical applications: a review. Acta Biomater 2012; 8:20-30. [PMID: 22040686 DOI: 10.1016/j.actbio.2011.10.016] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 10/13/2011] [Accepted: 10/13/2011] [Indexed: 12/13/2022]
Abstract
Magnesium has been suggested as a revolutionary biodegradable metal for use as an orthopaedic material. As a biocompatible and degradable metal, it has several advantages over the permanent metallic materials currently in use, including eliminating the effects of stress shielding, improving biocompatibility concerns in vivo and improving degradation properties, removing the requirement of a second surgery for implant removal. The rapid degradation of magnesium, however, is a double-edged sword as it is necessary to control the corrosion rates of the materials to match the rates of bone healing. In response, calcium phosphate coatings have been suggested as a means to control these corrosion rates. The potential calcium phosphate phases and their coating techniques on substrates are numerous and can provide several different properties for different applications. The reactivity and low melting point of magnesium, however, require specific parameters for calcium phosphate coatings to be successful. Within this review, an overview of the different calcium phosphate phases, their properties and their behaviour in vitro and in vivo has been provided, followed by the current coating techniques used for calcium phosphates that may be or may have been adapted for magnesium substrates.
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Affiliation(s)
- Shaylin Shadanbaz
- Department of Anatomy and Structural Biology, University of Otago, Dunedin, New Zealand.
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40
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Watanabe R, Hayashi R, Kimura Y, Tanaka Y, Kageyama T, Hara S, Tabata Y, Nishida K. A Novel Gelatin Hydrogel Carrier Sheet for Corneal Endothelial Transplantation. Tissue Eng Part A 2011; 17:2213-9. [DOI: 10.1089/ten.tea.2010.0568] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Ryou Watanabe
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryuhei Hayashi
- Department of Ophthalmology, Osaka University School of Medicine, Suita, Japan
| | - Yu Kimura
- Department of Biomaterials, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Yuji Tanaka
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Tokyo, Japan
| | - Tomofumi Kageyama
- Department of Ophthalmology, Osaka University School of Medicine, Suita, Japan
| | - Susumu Hara
- Department of Ophthalmology, Osaka University School of Medicine, Suita, Japan
| | - Yasuhiko Tabata
- Department of Biomaterials, Institute for Frontier Medical Sciences, Kyoto University, Kyoto, Japan
| | - Kohji Nishida
- Department of Ophthalmology, Osaka University School of Medicine, Suita, Japan
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41
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Abstract
The state-of-the-art of biocomposites and hybrid biomaterials based on calcium orthophosphates that are suitable for biomedical applications is presented in this review. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through successful combinations of the desired properties of matrix materials with those of fillers (in such systems, calcium orthophosphates might play either role), innovative bone graft biomaterials can be designed. Various types of biocomposites and hybrid biomaterials based on calcium orthophosphates, either those already in use or being investigated for biomedical applications, are extensively discussed. Many different formulations, in terms of the material constituents, fabrication technologies, structural and bioactive properties as well as both in vitro and in vivo characteristics, have already been proposed. Among the others, the nanostructurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using biocomposites and hybrid biomaterials based on calcium orthophosphates in the selected applications are highlighted. As the way from the laboratory to the hospital is a long one, and the prospective biomedical candidates have to meet many different necessities, this review also examines the critical issues and scientific challenges that require further research and development.
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42
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Lin CH, Hsu SH, Su JM, Chen CW. Surface modification of poly(ε-caprolactone) porous scaffolds using gelatin hydrogel as the tracheal replacement. J Tissue Eng Regen Med 2011; 5:156-62. [PMID: 20662011 DOI: 10.1002/term.301] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study evaluates the feasibility of poly(ε-caprolactone) as a tracheal replacement. To improve biocompatibility, the lumen was modified by gelatin hydrogel crosslinked with two different reagents, EDC and genipin. It was found that the choice of crosslinking agents could significantly affect human lung carcinoma cell proliferation. Genipin-crosslinked gelatin hydrogel had significantly better cell proliferation than EDC-crosslinked hydrogel. The study further investigated the performance of the PCL tube modified by genipin-crosslinked gelatin, using a rabbit tracheal implantation model with implants harvested and histologically examined. In vivo results showed that the PCL tube possessed suitable mechanical properties for resisting collapse during implantation. Additionally, PCL modified by genipin-crosslinked gelatin was found to suppress granulation tissue growth and prolong animal survival time in comparison with the original PCL tube. Genipin could be an effective treatment to reduce granulation tissue formation at the tracheal anastomoses.
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Affiliation(s)
- Chen-Huan Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung, Taiwan, Republic of China
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43
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Vasconcelos A, Cavaco-Paulo A. Wound dressings for a proteolytic-rich environment. Appl Microbiol Biotechnol 2011; 90:445-60. [DOI: 10.1007/s00253-011-3135-4] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 01/17/2011] [Accepted: 01/17/2011] [Indexed: 11/28/2022]
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44
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Kong YQ, Li D, Wang LJ, Adhikari B. Preparation of gelatin microparticles using water-in-water (w/w) emulsification technique. J FOOD ENG 2011. [DOI: 10.1016/j.jfoodeng.2010.09.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Sustained release of complexed DNA from films: Study of bioactivity and intracellular tracking. Biointerphases 2010; 5:FA69-77. [DOI: 10.1116/1.3493692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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46
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Matsuno T, Omata K, Hashimoto Y, Tabata Y, Satoh T. Alveolar bone tissue engineering using composite scaffolds for drug delivery. JAPANESE DENTAL SCIENCE REVIEW 2010. [DOI: 10.1016/j.jdsr.2009.12.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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47
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Electrospinning: A fascinating fiber fabrication technique. Biotechnol Adv 2010; 28:325-47. [DOI: 10.1016/j.biotechadv.2010.01.004] [Citation(s) in RCA: 3247] [Impact Index Per Article: 231.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2009] [Revised: 09/17/2009] [Accepted: 01/08/2010] [Indexed: 02/07/2023]
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48
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Kim MS, Jun I, Shin YM, Jang W, Kim SI, Shin H. The development of genipin-crosslinked poly(caprolactone) (PCL)/gelatin nanofibers for tissue engineering applications. Macromol Biosci 2010; 10:91-100. [PMID: 19685497 DOI: 10.1002/mabi.200900168] [Citation(s) in RCA: 136] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Composite nanofibers of poly(caprolactone) (PCL) and gelatin crosslinked with genipin are prepared. The contact angles and mechanical properties of crosslinked PCL-gelatin nanofibers decrease as the gelatin content increases. The proliferation of myoblasts is higher in the crosslinked PCL-gelatin nanofibers than in the PCL nanofibers, and the formation of myotubes is only observed on the crosslinked PCL-gelatin nanofibers. The expression level of myogenin, myosin heavy chain, and troponin T genes is increased as the gelatin content is increased. The results suggest that PCL-gelatin nanofibers crosslinked with genipin can be used as a substrate to modulate proliferation and differentiation of myoblasts, presenting potential applications in muscle tissue engineering.
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Affiliation(s)
- Min Sup Kim
- Department of Biomedical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791, Korea
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Grad S, Alini M, Eglin D, Sakai D, Mochida J, Mahor S, Collin E, Dash B, Pandit A. Cells and Biomaterials for Intervertebral Disc Regeneration. ACTA ACUST UNITED AC 2010. [DOI: 10.2200/s00250ed1v01y201006tis005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Chang JY, Ho TY, Lee HC, Lai YL, Lu MC, Yao CH, Chen YS. Highly Permeable Genipin-Cross-linked Gelatin Conduits Enhance Peripheral Nerve Regeneration. Artif Organs 2009; 33:1075-85. [DOI: 10.1111/j.1525-1594.2009.00818.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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