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Kim Y, Hamada K, Sekine K. The effect of supplementing the calcium phosphate cement containing poloxamer 407 on cellular activities. J Biomed Mater Res B Appl Biomater 2024; 112:e35335. [PMID: 37772460 DOI: 10.1002/jbm.b.35335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 09/12/2023] [Accepted: 09/18/2023] [Indexed: 09/30/2023]
Abstract
Calcium phosphate cement (CPC) is generally used for bone repair and augmentation. Poloxamers are tri-block copolymers that are used as surfactants but have applications in drug and antibiotic delivery. However, their biological effects on bone regeneration systems remain unelucidated. Here, we aimed to understand how supplementing the prototype CPC with poloxamer would impact cellular activity and its function as a bone-grafting material. A novel CPC, modified beta-tricalcium phosphate (mβ-TCP) powder, was developed through a planetary ball-milling process using a beta-tricalcium phosphate (β-TCP). The mβ-TCP dissolves rapidly and accelerates hydroxyapatite precipitation; successfully shortening the cement setting time and enhancing the strength. Furthermore, the addition of poloxamer 407 to mβ-TCP could reduce the risk of leakage from bone defects and improve fracture toughness while maintaining mechanical properties. In this study, the poloxamer addition effects (0.05 and 0.1 g/mL) on the cellular activities of MC3T3-E1 cells cultured in vitro were investigated. The cell viability of mβ-TCP containing poloxamer 407 was similar to that of mβ-TCP. All specimens showed effective cell attachment and healthy polygonal extension of the cytoplasm firmly attached to hydroxyapatite (HA) crystals. Therefore, even with the addition of poloxamer to mβ-TCP, it does not have a negative effect to osteoblast growth. These data demonstrated that the addition of poloxamer 407 to mβ-TCP might be considered a potential therapeutic application for the repair and regeneration of bone defects.
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Affiliation(s)
- Yeeun Kim
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kenichi Hamada
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
| | - Kazumitsu Sekine
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan
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Heard JC, Lee Y, Lambrechts MJ, Berthiaume E, D'Antonio ND, Bodnar J, Paulik J, Mangan JJ, Canseco JA, Kurd MF, Kaye ID, Vaccaro AR, Kepler CK, Schroeder GD, Hilibrand AS. The impact of demineralized bone matrix characteristics on pseudarthrosis and surgical outcomes after posterolateral lumbar decompression and fusion. JOURNAL OF CRANIOVERTEBRAL JUNCTION AND SPINE 2023; 14:194-200. [PMID: 37448499 PMCID: PMC10336891 DOI: 10.4103/jcvjs.jcvjs_45_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 05/15/2023] [Indexed: 07/15/2023] Open
Abstract
Objectives The objectives of our study were to compare the fusion rates and surgical outcomes of lumbar fusion surgery based on the (1) type of demineralized bone matrix (DBM) carrier allograft, (2) the presence/absence of a carrier, and (3) the presence of bone fibers in DBM. Methods Patients >18 years of age who underwent single-level posterolateral decompression and fusion (PLDF) between L3 and L5 between 2014 and 2021 were retrospectively identified. We assessed bone grafts based on carrier type (no carrier, sodium hyaluronate carrier, and glycerol carrier) and the presence of bone fibers. Fusion status was determined based on a radiographic assessment of bony bridging, screw loosening, or change in segmental lordosis >5°. Analyses were performed to assess fusion rates and surgical outcomes. Results Fifty-four patients were given DBM with a hyaluronate carrier, 75 had a glycerol carrier, and 94 patients were given DBM without a carrier. DBM carrier type, bone fibers, and carrier presence had no impact on 90-day readmission rates (P = 0.195, P = 0.099, and P = 1.000, respectively) or surgical readmissions (P = 0.562, P = 0.248, and P = 0.640, respectively). Multivariable logistic regression analysis found that type of carrier, presence of fibers (odds ratio [OR] = 1.106 [0.524-2.456], P = 0.797), and presence of a carrier (OR = 0.701 [0.370-1.327], P = 0.274) were also not significantly associated with successful fusion likelihood. Conclusion Our study found no significant differences between DBM containing glycerol, sodium hyaluronate, or no carrier regarding fusion rates or surgical outcomes after single-level PLDF. Bone particulates versus bone fibers also had no significant differences regarding the likelihood of bony fusion.
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Affiliation(s)
| | - Yunsoo Lee
- Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - Mark J. Lambrechts
- Department of Orthopaedic Surgery, Washington University, St. Louis, MO, USA
| | | | | | - John Bodnar
- Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - John Paulik
- Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | | | | | - Mark F. Kurd
- Rothman Orthopaedic Institute, Philadelphia, PA, USA
| | - I. David Kaye
- Rothman Orthopaedic Institute, Philadelphia, PA, USA
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Andre G, Boschetto F, Gokani V, Singhal M, Jing Y, Kim HKW, Ma C. Ex vivo study of detergent-assisted intraosseous bone wash treatment of osteonecrosis. J Orthop Res 2022. [PMID: 36453529 DOI: 10.1002/jor.25496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 11/21/2022] [Accepted: 11/28/2022] [Indexed: 12/04/2022]
Abstract
Avascular necrosis (AVN) involves ischemic cell death of the bone. AVN leaves an abundance of necrotic lipids and debris in the bone marrow, which instigates inflammatory bone repair. Consequently, the necrotic bone microenvironment stimulates excessive bone resorption, leading to joint deformities and osteoarthritis. Here, we performed a detergent-assisted bone wash using poloxamer 407 (P407) to clean the necrotic bone environment by removing lipids and necrotic debris. The new concept was tested using an established ex vivo AVN model of porcine cadaver humeral heads. The P407 wash was performed using P407 solution and followed with saline via two intraosseous needles. Visual inspection and image analyses of average pixel light intensity showed that the P407 wash produced a better-cleaned bone than the saline wash. Analyses of the collected bone wash solution showed a two-fold increase in triglycerides (101 vs. 53 mmol/head, p = 0.006) and a 10-fold increase in the dry weight of the removed debris (1.34 vs. 0.13 g/head, p = 0.02) with the P407 wash compared to saline. The histological evaluation showed significantly decreased Oil-Red-O (fats) staining in the P407-washed bone compared with the saline-washed bone. The in vitro assays of Alizarin red and qPCR showed the P407 wash neither altered the osteogenic behaviors of porcine bone marrow-derived mesenchymal cells (pBMMCs) nor raised inflammatory responses of porcine bone marrow-derived macrophages (pBMMs). In conclusion, detergent-assisted bone wash using P407 produced a better removal of nonsoluble debris from the bone marrow space than the saline wash without causing changes to osteogenesis or inflammatory reactions.
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Affiliation(s)
- Graham Andre
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, Texas, USA
| | - Francesco Boschetto
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, Texas, USA
| | - Vishal Gokani
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, Texas, USA
| | - Mo Singhal
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, Texas, USA
| | - Yan Jing
- Department of Orthodontics, Texas A&M School of Dentistry, Dallas, Texas, USA
| | - Harry K W Kim
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, Texas, USA.,Department of Orthopedic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Chi Ma
- Center for Excellence in Hip, Scottish Rite for Children, Dallas, Texas, USA.,Department of Orthopedic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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Kim Y, Uyama E, Sekine K, Kawano F, Hamada K. Effects of poloxamer additives on strength, injectability, and shape stability of beta-tricalcium phosphate cement modified using ball-milling. J Mech Behav Biomed Mater 2022; 130:105182. [PMID: 35305410 DOI: 10.1016/j.jmbbm.2022.105182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/11/2022] [Accepted: 03/13/2022] [Indexed: 11/16/2022]
Abstract
A new CPC was developed in this study using a β-TCP powder mechano-chemically modified by ball-milling. The prototype CPC exhibits excellent fluidity for easy injection into bone defects; however, there is a risk of leakage from the defects immediately after implantation due to its high fluidity. The addition of poloxamer, an inverse thermoresponsive gelling agent, into CPC optimizes the fluidity. At lower temperatures, it forms a sol and maintains good injectability, whereas at the human body temperature, it transforms to a gel, reducing the fluidity and risk of leakage. In this study, the effects of poloxamer addition of 3, 5, and 10 mass% on the injectability, shape stability, and strength of the prototype CPC were evaluated. The calculated injectability of the prototype CPC pastes containing three different poloxamer contents was higher than that of the CPC paste without poloxamer for 15 min at 37 °C. Furthermore, the shape stability immediately after injection of the three CPC pastes with poloxamer was higher than that of the CPC paste without poloxamer. After 1 week of storage at 37 °C, the compressive strength and diametral tensile strength of the CPC compacts containing 10 mass% poloxamer were similar to those of the CPC compact without poloxamer. Additionally, the CPC compacts containing 10 mass% poloxamer exhibited clear plastic deformation after fracture. These results indicate that the addition of poloxamer to the prototype CPC could reduce the risk of leakage from bone defects and improve the fracture toughness with maintaining the injectability and strength.
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Affiliation(s)
- Yeeun Kim
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima, 770-8504, Japan.
| | - Emi Uyama
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima, 770-8504, Japan
| | - Kazumitsu Sekine
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima, 770-8504, Japan
| | - Fumiaki Kawano
- Department of Comprehensive Dentistry, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima, 770-8504, Japan
| | - Kenichi Hamada
- Department of Biomaterials and Bioengineering, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto, Tokushima, 770-8504, Japan
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Sustained Delivery of Lactoferrin Using Poloxamer Gels for Local Bone Regeneration in a Rat Calvarial Defect Model. MATERIALS 2021; 15:ma15010212. [PMID: 35009359 PMCID: PMC8745849 DOI: 10.3390/ma15010212] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 01/02/2023]
Abstract
Lactoferrin (LF) is a multifunctional milk glycoprotein that promotes bone regeneration. Local delivery of LF at the bone defect site is a promising approach for enhancement of bone regeneration, but efficient systems for sustained local delivery are still largely missing. The aim of this study was to investigate the potential of the poloxamers for sustained delivery of LF to enhance local bone regeneration. The developed LF/poloxamer formulations were liquid at room temperature (20 °C) transforming to a sustained releasing gel depot at body temperature (37 °C). In vitro release studies demonstrated an initial burst release (~50%), followed by slower release of LF for up to 72 h. Poloxamer, with and without LF, increased osteoblast viability at 72 h (p < 0.05) compared to control, and the immune response from THP-1 cells was mild when compared to the suture material. In rat calvarial defects, the LF/poloxamer group had lower bone volume than the controls (p = 0.0435). No difference was observed in tissue mineral density and lower bone defect coverage scores (p = 0.0267) at 12 weeks after surgery. In conclusion, LF/poloxamer formulations support cell viability and do not induce an unfavourable immune response; however, LF delivery via the current formulation of LF200/poloxamer gel did not demonstrate enhanced bone regeneration and was not compatible with the rat calvarial defect model.
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Han JJ, Chang AR, Ahn J, Jung S, Hong J, Oh HK, Hwang SJ. Efficacy and safety of rhBMP/β-TCP in alveolar ridge preservation: a multicenter, randomized, open-label, comparative, investigator-blinded clinical trial. Maxillofac Plast Reconstr Surg 2021; 43:42. [PMID: 34928477 PMCID: PMC8688599 DOI: 10.1186/s40902-021-00328-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
Background The aim of this multicenter, randomized, open-label, comparative, investigator-blinded study was to investigate the efficacy and safety of recombinant human bone morphogenetic protein 2 (rhBMP-2) combined with β-TCP (rhBMP-2/β-TCP) in alveolar ridge preservation. Materials and methods Eighty-four subjects from three centers were enrolled in this clinical trial. After tooth extraction, rhBMP-2/β-TCP (n = 41, test group) or β-TCP (n = 43, control group) were grafted to the extraction socket with an absorbable barrier membrane for alveolar ridge preservation. Using computed tomography images obtained immediately after and 12 weeks after surgery, changes in the alveolar bone height and width were analyzed for each group and compared between the two groups. Results Both the test and control groups showed a significant decrease in alveolar bone height in the 12 weeks after surgery (both groups, p < 0.0001). However, the test group exhibited a significantly lower decrease in alveolar bone height than the control group (p = 0.0004). Alveolar bone width also showed significantly less resorption in the test group than in the control group for all extraction socket levels (ESL) (p = 0.0152 for 75% ESL; p < 0.0001 for 50% ESL; p < 0.0001 for 25% ESL). There were no statistically significant differences in the incidence of adverse events between the two groups. No severe adverse events occurred in either group. Conclusions The results of this study suggest that rhBMP-2/β-TCP is a safe graft material that provides a high alveolar bone preservation effect in patients receiving dental extraction. Trial registration Clinicaltrials.gov, NCT02714829, Registered 22 March 2016
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Affiliation(s)
- Jeong Joon Han
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Republic of Korea.,Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Ah Ryum Chang
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Jaemyung Ahn
- Department of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Seunggon Jung
- Department of Oral and Maxillofacial Surgery, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Jongrak Hong
- Department of Oral and Maxillofacial Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Hee-Kyun Oh
- Department of Oral and Maxillofacial Surgery, Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - Soon Jung Hwang
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea. .,Hwang Soon Jung's Dental Clinic for Oral and Maxillofacial Surgery, 349, Woonam Building 2, 3F, Gangnam-daero, Seocho-gu, Seoul, 06626, Republic of Korea.
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Dong H, Zhu T, Zhang M, Wang D, Wang X, Huang G, Wang S, Zhang M. Polymer Scaffolds-Enhanced Bone Regeneration in Osteonecrosis Therapy. Front Bioeng Biotechnol 2021; 9:761302. [PMID: 34631688 PMCID: PMC8498195 DOI: 10.3389/fbioe.2021.761302] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 09/09/2021] [Indexed: 12/12/2022] Open
Abstract
Osteonecrosis without effective early treatment eventually leads to the collapse of the articular surface and causes arthritis. For the early stages of osteonecrosis, core decompression combined with bone grafting, is a procedure worthy of attention and clinical trial. And the study of bone graft substitutes has become a hot topic in the area of osteonecrosis research. In recent years, polymers have received more attention than other materials due to their excellent performance. However, because of the harsh microenvironment in osteonecrosis, pure polymers may not meet the stringent requirements of osteonecrosis research. The combined application of polymers and various other substances makes up for the shortcomings of polymers, and to meet a broad range of requirements for application in osteonecrosis therapy. This review focuses on various applying polymers in osteonecrosis therapy, then discusses the development of biofunctionalized composite polymers based on the polymers combined with different bioactive substances. At the end, we discuss their prospects for translation to clinical practice.
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Affiliation(s)
- Hengliang Dong
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Tongtong Zhu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Mingran Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Dapeng Wang
- Department of Orthopedics, Siping Central Hospital, Siping, China
| | - Xukai Wang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Guanning Huang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Shuaishuai Wang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Minglei Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, Changchun, China
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Bhamb N, Kanim LEA, Drapeau S, Mohan S, Vasquez E, Shimko D, McKAY W, Bae HW. Comparative Efficacy of Commonly Available Human Bone Graft Substitutes as Tested for Posterolateral Fusion in an Athymic Rat Model. Int J Spine Surg 2019; 13:437-458. [PMID: 31745449 DOI: 10.14444/6059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Insufficient data exist on bone graft substitute materials efficacy; two thirds lack any clinical data.1,2 This prospective animal study identified efficacy differences among commercially available materials of several classes. Methods Historically validated muscle pouch osteoinduction study (OIS) and posterolateral fusion (PLF) were performed in an athymic rat model. Grafting material products implanted were demineralized bone matrix (DBM)-based allografts (Accell EVO3, DBX Mix, DBX Strip, Grafton Crunch, Grafton Flex, Grafton Matrix, Grafton Putty, Magnifuse, and Progenix Plus), allografts (OsteoSponge, MinerOss), cellular allograft (Osteocel Plus), ceramics (Mozaik Strip), or activated ceramics (Actifuse ABX Putty, Vitoss BA). After 4 weeks, OIS specimens were evaluated ex vivo by histologic osteoinductivity. After 8 weeks, PLF ex vivo specimens were evaluated for fusion by manual palpation (FMP), radiography (FXR), and histology (FHISTO). Results OIS: No materials exhibited a rejection reaction on histology. All DBM-based materials exhibited osteoinductive potential as new bone formation at > 88% of implanted sites. One plain allograft (OsteoSponge) formed bone at 25% of sites. No bone formed for one ceramic (Mozaik Strip), three activated ceramics (Actifuse ABX Putty), or one cellular allograft, regardless of human bone marrow aspirate (hBMA) when added. PLF: Among the 10 DBMs, 6 had FMP of 100% (Accell EVO3, DBX Mix, DBX Strip, Grafton Flex, Grafton Putty, Magnifuse), 2 had FMP of 94% (Grafton Crunch, Grafton Matrix), and 2 conditions had FMP of 0% (Progenix Plus, Progenix Plus + athymic rat iliac crest bone graft [arICBG]). Ceramics (Mozaik Strip), activated ceramics (Actifuse ABX Putty, Vitoss BA), plain allograft (OsteoSponge, MinerOss (PLF study), and cellular allograft (Osteocel Plus) demonstrated 0% FMP. ArICBG demonstrated 13% FMP. Conclusions Eight DBM-based materials (Accell EVO3, DBX Mix, DBX Strip, Grafton Crunch, Grafton Flex, Grafton Matrix, Grafton Putty, Magnifuse) demonstrated excellent (> 90% FMP) efficacy in promoting fusion via bone healing. Two DBM conditions (Progenix Plus, Progenix Plus + arICBG) showed no manual palpation fusion (FMP). Systematically, over the 2 studies (OIS and PLF), cellular (Osteocel Plus), plain allografts (OsteoSponge, MinerOss; PLF study), ceramic (Mozaik Strip), and activated ceramics (Actifuse ABX Putty, Vitoss BA) demonstrated poor FMP efficacy (< 10%). Clinical Relevance When selecting DBMs, clinicians must be cognizant of variability in DBM efficacy by product and lot. While theoretically osteoinductive, cellular allograft and activated ceramics yielded poor in vivo efficacy. Whole allograft and ceramics may provide osteoconductive scaffolding for mixed-material grafting; however, surgeons should be cautious in using them alone. Direct clinical data are needed to establish efficacy for any bone graft substitute.
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Affiliation(s)
- Neil Bhamb
- Cedars-Sinai Medical Center, Los Angeles, California
| | - Linda E A Kanim
- Translational and Clinical Research, Spine Center, Cedars-Sinai Medical Center, Los Angeles, California
| | | | | | | | | | | | - Hyun W Bae
- Cedars-Sinai Medical Center, Los Angeles, California
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Liu S, Wang Y, Wang J, Qiu P, Wang S, Shi Y, Li M, Chen P, Lin X, Fang X. A cancellous bone matrix system with specific mineralisation degrees for mesenchymal stem cell differentiation and bone regeneration. Biomater Sci 2019; 7:2452-2467. [PMID: 30942200 DOI: 10.1039/c8bm01657g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bone regenerative therapies have been explored using various biomaterial systems.
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Chang AR, Cho TH, Hwang SJ. Receptor Activator of Nuclear Factor Kappa-B Ligand-Induced Local Osteoporotic Canine Mandible Model for the Evaluation of Peri-Implant Bone Regeneration. Tissue Eng Part C Methods 2017; 23:781-794. [DOI: 10.1089/ten.tec.2017.0196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Ah Ryum Chang
- Department of Oral and Maxillofacial Surgery, BK 21 Plus, School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Tae Hyung Cho
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Soon Jung Hwang
- Department of Oral and Maxillofacial Surgery, BK 21 Plus, School of Dentistry, Seoul National University, Seoul, Republic of Korea
- Dental Research Institute, Seoul National University, Seoul, Republic of Korea
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Zhang Y, Wang J, Ma Y, Niu X, Liu J, Gao L, Zhai X, Chu K, Han B, Yang L, Wang J. Preparation and biocompatibility of demineralized bone matrix/sodium alginate putty. Cell Tissue Bank 2017; 18:205-216. [DOI: 10.1007/s10561-017-9627-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 04/13/2017] [Indexed: 10/19/2022]
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Gao H, Song Q, Lv F, Wang S, Wang Y, Li X, Luo Y, Mei X, Tang J. Protection Provided by a Gabexate Mesylate Thermo-Sensitive In Situ Gel for Rats with Grade III Pancreatic Trauma. Gut Liver 2017; 11:156-163. [PMID: 27646597 PMCID: PMC5221874 DOI: 10.5009/gnl15281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 03/10/2016] [Accepted: 03/11/2016] [Indexed: 12/13/2022] Open
Abstract
Background/Aims This study investigated the protection provided by gabexate mesylate thermo-sensitive in-situ gel (GMTI) against grade III pancreatic trauma in rats. Methods A grade III pancreatic trauma model with main pancreatic duct dividing was established, and the pancreas anatomical diagram, ascites, and serum biochemical indices, including amylase, lipase, C-reactive protein (CRP), interleukin 6 (IL-6), and tumor necrosis factor-α (TNF-α), were examined. The pancreas was sliced and stained with hematoxylin eosin and subjected to terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. Results Ascites, serum amylase, lipase, CRP, IL-6, and TNF-α levels were significantly increased in the pancreas trauma (PT) groups with prolonged trauma time and were significantly decreased after GMTI treatment. The morphological structure of the pancreas was loose, the acinus was significantly damaged, the nuclei were irregular and hyperchromatic, and there was inflammatory cell invasion in the PT group compared to the control. After GMTI treatment, the morphological structure of the pancreas was restored, and the damaged acinus and inflammatory cell invasion were decreased compared to the PT group. Moreover, the cell apoptosis index was significantly increased in the PT group and restored to the same levels as the control group after GMTI treatment. Conclusions GMTI, a novel formulation and drug delivery method, exhibited specific effective protection against PT with acute pancreatitis therapy and has potential value as a minimally invasive adjuvant therapy for PT with acute pancreatitis.
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Affiliation(s)
- Hanjing Gao
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China.,Department of Ultrasound, 161th Hospital of Chinese PLA, Wuhan, China
| | - Qing Song
- Department of Radiology, General Hospital of Beijing Military Region, Beijing, China
| | - Faqin Lv
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Shan Wang
- Department of Pharmaceutics, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Yiru Wang
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Xiaoyan Li
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Yukun Luo
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China
| | - Xingguo Mei
- Department of Pharmaceutics, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Jie Tang
- Department of Ultrasound, Chinese PLA General Hospital, Beijing, China
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