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Lu J, Li H, Zhang Z, Xu R, Wang J, Jin H. Platelet-rich plasma in the pathologic processes of tendinopathy: a review of basic science studies. Front Bioeng Biotechnol 2023; 11:1187974. [PMID: 37545895 PMCID: PMC10401606 DOI: 10.3389/fbioe.2023.1187974] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/10/2023] [Indexed: 08/08/2023] Open
Abstract
Tendinopathy is a medical condition that includes a spectrum of inflammatory and degenerative tendon changes caused by traumatic or overuse injuries. The pathological mechanism of tendinopathy has not been well defined, and no ideal treatment is currently available. Platelet-rich plasma (PRP) is an autologous whole blood derivative containing a variety of cytokines and other protein components. Various basic studies have found that PRP has the therapeutic potential to promote cell proliferation and differentiation, regulate angiogenesis, increase extracellular matrix synthesis, and modulate inflammation in degenerative tendons. Therefore, PRP has been widely used as a promising therapeutic agent for tendinopathy. However, controversies exist over the optimal treatment regimen and efficacy of PRP for tendinopathy. This review focuses on the specific molecular and cellular mechanisms by which PRP manipulates tendon healing to better understand how PRP affects tendinopathy and explore the reason for the differences in clinical trial outcomes. This article has also pointed out the future direction of basic research and clinical application of PRP in the treatment of tendinopathy, which will play a guiding role in the design of PRP treatment protocols for tendinopathy.
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Affiliation(s)
- Jialin Lu
- Department of Pain, The Second Hospital of Jilin University, Changchun, China
- Norman Bethune Health Science Center of Jilin University, Changchun, China
| | - Han Li
- Norman Bethune Health Science Center of Jilin University, Changchun, China
| | - Ziyu Zhang
- Norman Bethune Health Science Center of Jilin University, Changchun, China
| | - Rui Xu
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Hui Jin
- Department of Pain, The Second Hospital of Jilin University, Changchun, China
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
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Li FL, Wu CB, Sun HJ, Zhou Q. Comparison of Autologous Platelet-Rich Plasma and Chitosan in the Treatment of Temporomandibular Joint Osteoarthritis: A Retrospective Cohort Study. J Oral Maxillofac Surg 2020; 79:324-332. [PMID: 33045183 DOI: 10.1016/j.joms.2020.09.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 12/15/2022]
Abstract
PURPOSE The purpose of this article is to study the effect of autologous platelet-rich plasma (PRP) injected into the upper cavity of the temporomandibular joint (TMJ) on the treatment of TMJ osteoarthritis. PATIENTS AND METHODS We retrospectively analyzed the data of 27 patients with TMJ osteoarthritis treated at the China Medical University Hospital of Stomatology from September 2018 to September 2019. Maximal interincisal opening, pain intensity, and TMJ sounds were recorded and compared before treatment and at the 3rd and 6th months after the treatment. SPSS 24.0 software was used to analyze the data of each group, and the imaging changes in the condylar bone were compared before and 6 months after the treatment. The P-value was set at .05. RESULTS Better results were observed in the group treated with PRP on maximal interincisal opening and pain intensity than in the group receiving chitosan treatment. Regarding TMJ sounds, relief was observed in both groups, with no significant difference. CONCLUSIONS The effect of PRP on the improvement of the maximal interincisal opening and pain intensity of patients with TMJ osteoarthritis is better than that of chitosan. However, it should be noted that the incidence of complications associated with the injection of PRP may be higher than that with injection of chitosan.
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Affiliation(s)
- Fu-Long Li
- Resident, Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning Province, PR China
| | - Chuan-Bin Wu
- Attending Doctor, Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning Province, PR China
| | - Hai-Jiang Sun
- Attending Doctor, Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning Province, PR China
| | - Qing Zhou
- Professor, Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning Province, PR China.
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Veronesi F, Giavaresi G, Bellini D, Casagranda V, Pressato D, Fini M. Evaluation of a new collagen-based medical device (ElastiCo®) for the treatment of acute Achilles tendon injury and prevention of peritendinous adhesions: An in vitro biocompatibility and in vivo investigation. J Tissue Eng Regen Med 2020; 14:1113-1125. [PMID: 32592610 DOI: 10.1002/term.3085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 05/05/2020] [Accepted: 06/01/2020] [Indexed: 01/05/2023]
Abstract
Tendon healing still represents a challenge for clinicians because it is slow and incomplete. The most injured is the Achilles tendon, and surgery is the therapeutic strategy often adopted because it provides a quicker functional recovery. Peritendinous adhesions are the main complication of surgery with hyperplasia and chemotaxis of fibroblasts. A biomaterial that blocks fibroblast migration, without interfering with the passage of cytokines and growth factors, might be useful. The present study evaluated the biocompatibility of a new Type I collagen-based scaffold (ElastiCo®) and its ability to promote Achilles tendon healing, inhibiting adhesion formation. After verifying in vitro biocompatibility, physical, and mechanical properties of the scaffold, an in vivo study was performed in 28 rats, operated to induce an acute lesion in both Achilles tendons. One tendon was treated with the suture only and the contralateral one with suture wrapped with ElastiCo® film. After 8 and 16 weeks, it was observed that ElastiCo® reduced internal and external peritendinous adhesions and Collagen III content and increased Collagen I. Elastic modulus increased with both treatments over time. Current results highlighted the clinical translationality of ElastiCo® that could improve the quality of life in patients affected by Achilles tendon lesions surgically treated.
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Affiliation(s)
- Francesca Veronesi
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Gianluca Giavaresi
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | | | | | | | - Milena Fini
- Laboratory of Preclinical and Surgical Studies, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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Healing potentials of polymethylmethacrylate bone cement combined with platelet gel in the critical-sized radial bone defect of rats. PLoS One 2018; 13:e0194751. [PMID: 29608574 PMCID: PMC5880368 DOI: 10.1371/journal.pone.0194751] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 03/08/2018] [Indexed: 11/24/2022] Open
Abstract
Polymethylmethacrylate (PMMA) is the most commonly used filler material that lacks biological properties and osteoconductivity or osteoinductivity. Platelet gel (PG) is a typical source of growth factors, cytokines and molecules efficient for bone formation and remodeling. The aim of this study was to evaluate bone healing and regeneration of bone defect in rat model by combining PMMA with PG. A total of 50 defects were created in the diaphysis of the radii of 25 male Sprague-Dawley rats. These defects were randomly divided into five groups (n = 10 defects for each group) and treated by autograft, plain PMMA, PG and PMMA-PG or left untreated. The rats were examined clinically and radiologically during the experiment and also after euthanasia at the 8th post-operative week, the healed defects were evaluated by gross morphology, histopathology, histomorphometry, computed tomography, scanning electron microscopy and biomechanical testing. PG could function as efficiently as autograft in promoting bone healing of the radial bones. Additionally, bone formation, and densities of cartilaginous and osseous tissues in the defects treated with autograft, PG and PMMA-PG were more satisfactory than the untreated and PMMA treated defects. Compared with the PMMA-PG implant, more PMMA residuals remained in the defect area and induced more intense inflammatory reaction. In conclusion, addition of PG could improve the bone regenerative properties of PMMA bone cement compared with PMMA alone in vivo. Therefore, the PG-PMMA can be proposed as a promising option to increase regenerative potential of PMMA, particularly when it is used as fixator, filler or adhesive in the dentistry, neurosurgery and bone tissue engineering applications.
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Xie Y, Tan X, Huang J, Huang H, Zou P, Hu J. Atorvastatin-loaded micelles with bone-targeted ligand for the treatment of osteoporosis. Drug Deliv 2017; 24:1067-1076. [PMID: 28705021 PMCID: PMC8241047 DOI: 10.1080/10717544.2017.1347966] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 12/24/2022] Open
Abstract
Osteoporosis is a common bone disorder where the declined bone mass is far more than normal physiological status and usually associated with enhanced fracture risk, reduced bone strength and even deteriorated quality of life. Recent studies showed that statins could exert beneficial effects on bones via promoting osteoblastic activity mediated by increased expression of bone morphogenetic protein 2 and also by suppressing osteoclast proliferation. In this study, we developed atorvastatin-loaded tetracycline-poly (ethylene glycol)-poly(lactic-co-glycolic acid) (TC-PEG-PLGA/ATO) micelles for the targeted treatment of osteoporosis. The TC-PEG-PLGA was synthesized under the action of coupling reagents and then ATO was encapsulated through solvent diffusion method with encapsulation efficiency and drug loading of 89.32 ± 2.48% and 8.20 ± 0.53%, respectively. The release of ATO from micelles could be maintained for more than 48 h in pH 7.4 PBS. Pharmacokinetic results further demonstrated that TC-PEG-PLGA micelles could effectively shield ATO leakage from micelles and prolong their circulation time. Benefiting from TC specifically binding to hydroxyapatite (HAp), TC-PEG-PLGA/ATO micelles exerted good bone-targeted ability, as demonstrated by in vitro HAp affinity assay and biodistribution. Pharmacodynamic studies showed that TC-PEG-PLGA/ATO micelles could effectively improve bone mineral density and bone mechanical strength in osteoporotic rats. These results suggest that TC-PEG-PLGA/ATO micelles hold significant promise for the targeted treatment of osteoporosis.
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Affiliation(s)
- Yonghui Xie
- Department of Orthopaedics, Yangjiang People’s Hospital, Yangjiang, China
| | - Xueying Tan
- College of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, China
| | - Jian Huang
- Department of Orthopaedics, Yangjiang People’s Hospital, Yangjiang, China
| | - Hongwei Huang
- Department of Orthopaedics, Yangjiang People’s Hospital, Yangjiang, China
| | - Ping Zou
- Department of Pharmacy, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingbo Hu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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Raeissadat SA, Babaee M, Rayegani SM, Hashemi Z, Hamidieh AA, Mojgani P, Fouladi Vanda H. An overview of platelet products (PRP, PRGF, PRF, etc.) in the Iranian studies. Future Sci OA 2017; 3:FSO231. [PMID: 29134118 PMCID: PMC5674219 DOI: 10.4155/fsoa-2017-0045] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 06/16/2017] [Indexed: 02/06/2023] Open
Abstract
Aim The aim of the study was to carry out a review of published studies on various platelet products in Iranian studies. Materials & methods Electronic databases were searched for relevant articles. Two review authors independently extracted data via a tested extraction sheet, and disagreements were resolved by a meeting with a third review author. Results Bone disorders (25%), wound and fistula (16%), dental and gingival disorders (14%) and osteoarthritis (11%) have more relative frequency based on different fields. Conclusion The necessity of pursuing standard protocols in the preparation of platelet products, stating the precise content of platelets and growth factors, and long-term follow-up of study subjects were the most important points in Iranian studies.
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Affiliation(s)
- Seyed Ahmad Raeissadat
- Clinical Research Development Center of Shahid Modarres Hospital & Physical Medicine & Rehabilitation Research Center of Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Babaee
- Clinical Research Development Center of Shahid Modarres Hospital & Physical Medicine & Rehabilitation Research Center of Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mansour Rayegani
- Clinical Research Development Center of Shahid Modarres Hospital & Physical Medicine & Rehabilitation Research Center of Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahra Hashemi
- Clinical Research Development Center of Shahid Modarres Hospital & Physical Medicine & Rehabilitation Research Center of Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir Ali Hamidieh
- Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parviz Mojgani
- Rehabilitation and Medical Education Department, Iran Helal institute of Applied Sciences and Technology, affiliated to the Red Crescent Society of Iran, Tehran, Iran
| | - Hossein Fouladi Vanda
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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Shahrezaie M, Moshiri A, Shekarchi B, Oryan A, Maffulli N, Parvizi J. Effectiveness of tissue engineered three‐dimensional bioactive graft on bone healing and regeneration: an
in vivo
study with significant clinical value. J Tissue Eng Regen Med 2017; 12:936-960. [DOI: 10.1002/term.2510] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/03/2017] [Accepted: 06/20/2017] [Indexed: 12/31/2022]
Affiliation(s)
- Mostafa Shahrezaie
- Department of Orthopedic Surgery, Faculty of MedicineAJA University of Medical Science Tehran Iran
| | - Ali Moshiri
- Department of Orthopedic Surgery, Faculty of MedicineAJA University of Medical Science Tehran Iran
- Department of Surgery and RadiologyDr. Moshiri Veterinary Clinic Tehran Iran
| | - Babak Shekarchi
- Department of Radiology, Faculty of MedicineAJA University of Medical Science Tehran Iran
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary MedicineShiraz University Shiraz Iran
| | - Nicola Maffulli
- Department of Musculoskeletal Disorders, School of Medicine and SurgeryUniversity of Salerno Salerno Italy
- Centre for Sports and Exercise MedicineQueen Mary University of London, Barts and the London School of Medicine and Dentistry, Mile End Hospital London UK
| | - Javad Parvizi
- Department of OrthopaedicsThe Rothman Institute at Thomas Jefferson University Hospital Philadelphia PA USA
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Yang Z, Cao H, Gao S, Yang M, Lyu J, Tang K. Effect of Tendon Stem Cells in Chitosan/β-Glycerophosphate/Collagen Hydrogel on Achilles Tendon Healing in a Rat Model. Med Sci Monit 2017; 23:4633-4643. [PMID: 28951538 PMCID: PMC6266537 DOI: 10.12659/msm.906747] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background The aim of this study was to determine whether the local application of tendon stem cells (TSCs) with chitosan/b-glycerophosphate/collagen(C/GP/Co) hydrogel promotes healing after an acute Achilles tendon injury in a rat model. Material/Methods Ninety-six Sprague-Dawley (SD) rats were used to make an Achilles tendon defect model, then the animals were randomly divided into 4 groups consisting of 8 rats each: control group, hydrogel group, TSCs group, and TSCs with hydrogel group. At 2, 4, and 6 weeks after treatment, tendon samples were harvested, and the quality of tendon repair was evaluated based on histology, immunohistochemistry, and biomechanical properties. Results Combining TSCs with C/GP/Co hydrogel significantly enhances tendon healing compared with the control, hydrogel, and TSCs groups. The improved healing was indicated by the improvement in histological and immunohistochemistry outcomes and the increase in the biomechanical properties of the regenerated tissue at both 4 and 6 weeks post-injury. Conclusions This study demonstrates that the transplantation of TSCs combined with C/GP/Co hydrogel significantly improved the histological, immunohistochemistry, and biomechanical outcomes of the regenerated tissue at 4 and 6 weeks after implantation. TSCs with C/GP/Co hydrogel is a potentially effective treatment for tendon injury.
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Affiliation(s)
- Zhijin Yang
- Department of Orthopedic Surgery/Sports Medicine Center, Southwest Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Honghui Cao
- Department of Orthopedic Surgery/Sports Medicine Center, Southwest Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Shang Gao
- Department of Orthopedic Surgery/Sports Medicine Center, Southwest Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Mingyu Yang
- Department of Orthopedic Surgery/Sports Medicine Center, Southwest Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Jingtong Lyu
- Department of Orthopedic Surgery/Sports Medicine Center, Southwest Hospital, Third Military Medical University, Chongqing, China (mainland)
| | - Kanglai Tang
- Department of Orthopedic Surgery/Sports Medicine Center, Southwest Hospital, Third Military Medical University, Chongqing, China (mainland)
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Moshiri A, Sharifi AM, Oryan A. Role of Simvastatin on fracture healing and osteoporosis: a systematic review on in vivo investigations. Clin Exp Pharmacol Physiol 2017; 43:659-84. [PMID: 27061579 DOI: 10.1111/1440-1681.12577] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2015] [Revised: 04/04/2016] [Accepted: 04/05/2016] [Indexed: 01/15/2023]
Abstract
Simvastatin is a lipid lowering drug whose beneficial role on bone metabolism was discovered in 1999. Several in vivo studies evaluated its role on osteoporosis and fracture healing, however, controversial results are seen in the literature. For this reason, Simvastatin has not been the focus of any clinical trials as yet. This systematic review clears the mechanisms of action of Simvastatin on bone metabolism and focuses on in vivo investigations that have evaluated its role on osteoporosis and fracture repair to find out (i) whether Simvastatin is effective on treatment of osteoporosis and fracture repair, and (ii) which of the many available protocols may have the ability to be translated in the clinical setting. Simvastatin induces osteoinduction by increasing osteoblast activity and differentiation and inhibiting their apoptosis. It also reduces osteoclastogenesis by decreasing both the number and activity of osteoclasts and their differentiation. Controversial results between the in vivo studies are mostly due to the differences in the route of administration, dose, dosage and carrier type. Local delivery of Simvastatin through controlled drug delivery systems with much lower doses and dosages than the systemic route seems to be the most valuable option in fracture healing. However, systemic delivery of Simvastatin with much higher doses and dosages than the clinical ones seems to be effective in managing osteoporosis. Simvastatin, in a particular range of doses and dosages, may be beneficial in managing osteoporosis and fracture injuries. This review showed that Simvastatin is effective in the treatment of osteoporosis and fracture healing.
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Affiliation(s)
- Ali Moshiri
- RAZI Drug Research Centre, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Mohammad Sharifi
- RAZI Drug Research Centre, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Tissue Engineering Group, Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz, Iran
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Oryan A, Sharifi P, Moshiri A, Silver IA. The role of three-dimensional pure bovine gelatin scaffolds in tendon healing, modeling, and remodeling: an in vivo investigation with potential clinical value. Connect Tissue Res 2017; 58:424-437. [PMID: 27662266 DOI: 10.1080/03008207.2016.1238468] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AIM OF THE STUDY Large tendon defects involving extensive tissue loss present complex clinical problems. Surgical reconstruction of such injuries is normally performed by transplanting autogenous and allogenous soft tissues that are expected to remodel to mimic a normal tendon. However, the use of grafts has always been associated with significant limitations. Tissue engineering employing artificial scaffolds may provide acceptable alternatives. Gelatin is a hydrolyzed form of collagen that is bioactive, biodegradable, and biocompatible. The present study has investigated the suitability of gelatin scaffold for promoting healing of a large tendon-defect model in rabbits. MATERIALS AND METHODS An experimental model of a large tendon defect was produced by partial excision of the Achilles tendon of the left hind leg in adult rabbits. To standardize and stabilize the length of the tendon defect a modified Kessler core suture was anchored in the sectioned tendon ends. The defects were either left untreated or filled with three-dimensional gelatin scaffold. Before euthanasia 60 days after injury, the progress of healing was evaluated clinically. Samples of healing tendon were harvested at autopsy and evaluated by gross, histopathologic, scanning, and transmission electron microscopy, and by biomechanical testing. RESULTS The treated animals showed superior weight-bearing and physical activity compared with those untreated, while frequency of peritendinous adhesions around the healing site was reduced. The gelatin scaffold itself was totally degraded and replaced by neo-tendon that morphologically had significantly greater numbers, diameters, density, and maturation of collagen fibrils, fibers, and fiber bundles than untreated tendon scar tissue. It also had mechanically higher ultimate load, yield load, stiffness, maximum stress and elastic modulus, when compared to the untreated tendons. CONCLUSION Gelatin scaffold may be a valuable option in surgical reconstruction of large tendon defects.
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Affiliation(s)
- Ahmad Oryan
- a Department of Pathology, School of Veterinary Medicine , Shiraz University , Shiraz , Iran
| | - Pardis Sharifi
- a Department of Pathology, School of Veterinary Medicine , Shiraz University , Shiraz , Iran
| | - Ali Moshiri
- b RAZI Drug Research Center , Iran University of Medical Sciences , Tehran , Iran
| | - Ian A Silver
- c Department of Anatomy, Center for Comparative and Clinical Anatomy , School of Veterinary Science , Bristol , UK
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Oryan A, Alidadi S, Bigham-Sadegh A, Meimandi-Parizi A. Chitosan/gelatin/platelet gel enriched by a combination of hydroxyapatite and beta-tricalcium phosphate in healing of a radial bone defect model in rat. Int J Biol Macromol 2017; 101:630-637. [DOI: 10.1016/j.ijbiomac.2017.03.148] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/13/2017] [Accepted: 03/19/2017] [Indexed: 11/16/2022]
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Oryan A, Alidadi S, Bigham-Sadegh A, Moshiri A. Effectiveness of tissue engineered based platelet gel embedded chitosan scaffold on experimentally induced critical sized segmental bone defect model in rat. Injury 2017; 48:1466-1474. [PMID: 28460883 DOI: 10.1016/j.injury.2017.04.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 04/21/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND Healing and regeneration of large bone defects are a challenging problem for reconstructive orthopedic surgeons. PURPOSE This study investigated the effectiveness of chitosan scaffold (CS), platelet gel (PG) and their combination (CS-PG) on healing process of an experimentally induced critical sized segmental bone defect model in rat. METHODS Fifty bilateral defects were created in the mid diaphysis of the radial bones of 25 Sprague-Dawley rats. The animals were randomly divided into five equal groups. The bone defects were either left untreated or treated with corticomedullary autograft, CS, PG or CS-PG. Plain radiographs were provided from the radial bones on weeks 2, 5, and 8 after injury. In addition, clinical examinations were done for the healing radial bones. The animals were euthanized after 8 weeks of injury, and their harvested samples were evaluated by gross morphology, histopathology, scanning electron microscopy, CT-scan, and biomechanical testing. RESULTS Compared with the defect group, the PG and autograft treated bone defects had significantly superior radiological scored values, bone volume and biomechanical performance which had positive correlation with their superior gross pathological, histopathological and ultra-structural features. Compared with the untreated defects, the PG and CS-PG treated defects showed significantly superior structural and functional properties so that PG had the highest value. In addition, CS had low value in bone regeneration. Although combination of CS and PG improved the healing efficacy of the CS, this strategy reduced the ability of PG to increase osteoconduction and osteoinduction during bone regeneration. CONCLUSION Application of PG alone enhanced bone healing and can be regarded as a promising option for bone tissue engineering in clinical settings. Chitosan was not effective in bone reconstruction surgery and further investigations should be conducted to find a suitable carrier for PG.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Soodeh Alidadi
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Amin Bigham-Sadegh
- Department of Clinical Sciences, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - Ali Moshiri
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
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14
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Oryan A, Alidadi S, Bigham-Sadegh A, Moshiri A. Comparative study on the role of gelatin, chitosan and their combination as tissue engineered scaffolds on healing and regeneration of critical sized bone defects: an in vivo study. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:155. [PMID: 27590825 DOI: 10.1007/s10856-016-5766-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 08/05/2016] [Indexed: 06/06/2023]
Abstract
Gelatin and chitosan are natural polymers that have extensively been used in tissue engineering applications. The present study aimed to evaluate the effectiveness of chitosan and gelatin or combination of the two biopolymers (chitosan-gelatin) as bone scaffold on bone regeneration process in an experimentally induced critical sized radial bone defect model in rats. Fifty radial bone defects were bilaterally created in 25 Wistar rats. The defects were randomly filled with chitosan, gelatin and chitosan-gelatin and autograft or left empty without any treatment (n = 10 in each group). The animals were examined by radiology and clinical evaluation before euthanasia. After 8 weeks, the rats were euthanized and their harvested healing bone samples were evaluated by radiology, CT-scan, biomechanical testing, gross pathology, histopathology, histomorphometry and scanning electron microscopy. Gelatin was biocompatible and biodegradable in vivo and showed superior biodegradation and biocompatibility when compared with chitosan and chitosan-gelatin scaffolds. Implantation of both the gelatin and chitosan-gelatin scaffolds in bone defects significantly increased new bone formation and mechanical properties compared with the untreated defects (P < 0.05). Combination of the gelatin and chitosan considerably increased structural and functional properties of the healing bones when compared to chitosan scaffold (P < 0.05). However, no significant differences were observed between the gelatin and gelatin-chitosan groups in these regards (P > 0.05). In conclusion, application of the gelatin alone or its combination with chitosan had beneficial effects on bone regeneration and could be considered as good options for bone tissue engineering strategies. However, chitosan alone was not able to promote considerable new bone formation in the experimentally induced critical-size radial bone defects.
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Affiliation(s)
- Ahmad Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Soodeh Alidadi
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - Amin Bigham-Sadegh
- Department of Clinical Sciences, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - Ali Moshiri
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
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PRP Treatment Efficacy for Tendinopathy: A Review of Basic Science Studies. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9103792. [PMID: 27610386 PMCID: PMC5004020 DOI: 10.1155/2016/9103792] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/08/2016] [Accepted: 07/20/2016] [Indexed: 11/18/2022]
Abstract
Platelet-Rich Plasma (PRP) has been widely used in orthopaedic surgery and sport medicine to treat tendon injuries. However, the efficacy of PRP treatment for tendinopathy is controversial. This paper focuses on reviewing the basic science studies on PRP performed under well-controlled conditions. Both in vitro and in vivo studies describe PRP's anabolic and anti-inflammatory effects on tendons. While some clinical trials support these findings, others refute them. In this review, we discuss the effectiveness of PRP to treat tendon injuries with evidence presented in basic science studies and the potential reasons for the controversial results in clinical trials. Finally, we comment on the approaches that may be required to improve the efficacy of PRP treatment for tendinopathy.
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Oryan A, Alidadi S, Moshiri A. Platelet-rich plasma for bone healing and regeneration. Expert Opin Biol Ther 2015; 16:213-32. [DOI: 10.1517/14712598.2016.1118458] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Oryan A, Kamali A, Moshiri A. Potential mechanisms and applications of statins on osteogenesis: Current modalities, conflicts and future directions. J Control Release 2015; 215:12-24. [DOI: 10.1016/j.jconrel.2015.07.022] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 07/19/2015] [Accepted: 07/20/2015] [Indexed: 12/15/2022]
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Moshiri A, Shahrezaee M, Shekarchi B, Oryan A, Azma K. Three-Dimensional Porous Gelapin-Simvastatin Scaffolds Promoted Bone Defect Healing in Rabbits. Calcif Tissue Int 2015; 96:552-64. [PMID: 25804980 DOI: 10.1007/s00223-015-9981-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 03/03/2015] [Indexed: 12/11/2022]
Abstract
Treatment of large bone defects (LBDs) is technically demanding. Tissue engineering is an option. A bioactive graft may be produced by combining tissue scaffolds and healing promotive factors in order to accelerate bone repair. We investigated the role of Simvastatin (Sim)-embedded porous Gelapin (Gel) scaffold on experimental bone healing. At first, the effectiveness of different concentrations of Gel and Sim powders was investigated in an experimentally induced femoral hole model in rabbits (n = 6) for 30 days. Then bone bioactive grafts were produced by combination of the effective concentrations of Gel, Sim, and Genipin. The bioimplants were subcutaneously tested in a rabbit model (n = 9) to determine their biocompatibility and biodegradability for 10-30 days. Finally, a large radial bone defect model was produced in rabbits (n = 20), and the bioimplants were inserted in the defects. The untreated and autograft-treated bone defects were served as controls. The animals were euthanized after 30 and 60 days of bone injury. The bone samples were evaluated by radiography, three-dimensional CT scan, bone densitometry, histopathology, and nano-indentation. At a concentration of 5 mg/hole, Sim closed the femoral bone holes after 30 days, while in the defect, autograft, and Gel groups, the holes were open. Both the Gel and Gel-Sim scaffolds were biocompatible and biodegradable. Subcutaneously, the Gel-Sim scaffold was replaced with the newly regenerated ectopic bone after 30 days. After implantation of the Gel-Sim scaffold in the radial bone defects, the scaffold was completely replaced with new woven bone after 30 days which was then matured and remodeled into a cortical bone after 60 days. Sixty days after bone injury, the Gel-Sim-treated defects had significantly higher bone volume, matrix mineralization, elastic modulus, and contact hardness when compared to the controls. The Gel-Sim scaffold may be a suitable option in managing LBDs.
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Affiliation(s)
- Ali Moshiri
- Department of Orthopedic Surgery, School of Medicine, AJA University of Medical Science, Tehran, Iran
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