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Liu H, Jiao Y, Forouzanfar T, Wu G, Guo R, Lin H. High-strength double-network silk fibroin based hydrogel loaded with Icariin and BMSCs to inhibit osteoclasts and promote osteogenic differentiation to enhance bone repair. BIOMATERIALS ADVANCES 2024; 160:213856. [PMID: 38640877 DOI: 10.1016/j.bioadv.2024.213856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/02/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Large bone defects cause significant clinical challenges due to the lack of optimal grafts for effective regeneration. The tissue engineering way that requires the combination of biomaterials scaffold, stem cells and proper bioactive factors is a prospective method for large bone repair. Here, we synthesized a three-arm host-guest supramolecule (HGSM) to covalently crosslinking with the naturally derived polymer methacrylated silk fibroin (SFMA). The combination of HGSM and SFMA can form a high strength double-crosslinked hydrogel HGSFMA, that serve as the hydrogel scaffold for bone marrow mesenchymal stem cells (BMSCs) growing. Icariin (ICA) loaded in the HGSFMA hydrogel can promote the osteogenesis efficiency of BMSCs and inhibit the osteoclasts differentiation. Our findings demonstrated that the HGSFMA/ICA hydrogel effectively promoted the in vitro adhesion, proliferation, and osteogenic differentiation of BMSCs. Rat femoral defects model show that this hydrogel can completely repair femoral damage within 4 weeks and significantly promote the secretion of osteogenesis-related proteins. In summary, we have prepared an effective biomimetic bone carrier, offering a novel strategy for bone regeneration and the treatment of large-scale bone defects.
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Affiliation(s)
- Huiling Liu
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Yang Jiao
- Department of Stomatology, the Seventh Medical Center of PLA General Hospital, No. 5, Nanmencang, Dongsishitiao Street, Dongcheng District, Beijing 100700, China
| | - T Forouzanfar
- Department of Oral and Maxillofacial Surgery, Leiden University Medical Centre, Amsterdam, De Boelelaan 1117, the Netherlands
| | - Gang Wu
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Gustav Mahlerlaan, 3004, Amsterdam 1081LA, the Netherlands.
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Centre for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Haiyan Lin
- Department of Implantology, Hangzhou Stomatology Hospital, Hangzhou 310006, China; Savid School of Stomatology, Hangzhou Medical College, Hangzhou 311399, China; Hangzhou Stomatology Hospital, Pinghai Road, Shangcheng District, Hangzhou 310006, China.
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Hamed GM, Nassef NA, Mansour RSAE, Shawky MKE, Zeid AAA, Hassan AA. The Effect of Early Application of a Combined Therapy of Bone Marrow Mesenchymal Stem Cells and Platelet-Rich Plasma on Blood and Bone Parameters in Ovariectomized Rats. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s0022093021040219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tang R, Wang S, Yang J, Wu T, Fei J. Application of platelet-rich plasma in traumatic bone infections. Expert Rev Anti Infect Ther 2020; 19:867-875. [PMID: 33259253 DOI: 10.1080/14787210.2021.1858801] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: Traumatic bone infection represents a clinical challenge for orthopedic surgeons. Traditional treatments include surgical debridement and antibiotic, but prolonged use of antibiotic may lead to colonization of resistant bacteria and other adverse reactions.Areas covered: Platelet-rich plasma (PRP), a biological product extracted from the peripheral blood of patients, has been widely used in the field of tissue repair in recent years. Because if its structural and antibacterial properties, PRP is an innovative option for the prevention and treatment of infections. This review assesses the recent scientific literature on PRP, specifically its in the treatment of infections. To this end, a literature review was conducted using the PubMed and Web of Science databases with the following keywords 'platelet-rich plasma (PRP)'; 'PRP AND traumatic bone infections'; 'PRP AND bone defect'; 'PRP AND antibiotics'; and 'PRP AND wound healing'.Expert opinion: This review focuses on the mechanism of action, preparation methods, clinical applications and other aspects related to PRP to provide a reference for its use in the treatment of traumatic bone infections, thereby enhancing the therapeutic effectiveness and improving the prognosis of patients.
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Affiliation(s)
- Ruohui Tang
- Outpatient Department of 96824 Troops of the Chinese People's Liberation Army, Kunming, China
| | - Shaochuan Wang
- Emergency Department of Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Jing Yang
- Emergency Department of Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China
| | - Tong Wu
- Department of Orthopedics, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Jun Fei
- Emergency Department of Daping Hospital, Third Military Medical University (Army Medical University), Chongqing, China.,State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University (Army Medical University), Chongqing, China
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MalekiGorji M, Golestaneh A, Razavi SM. The effect of two phosphodiesterase inhibitors on bone healing in mandibular fractures (animal study in rats). J Korean Assoc Oral Maxillofac Surg 2020; 46:258-265. [PMID: 32855373 PMCID: PMC7469969 DOI: 10.5125/jkaoms.2020.46.4.258] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 12/09/2019] [Accepted: 12/17/2019] [Indexed: 12/13/2022] Open
Abstract
Objectives Despite advances in maxillofacial surgery, impaired bone healing remains a concern for surgical teams. Many studies have evaluated the effects of sildenafil and pentoxifylline on bone healing. However, their effects on healing of bone fractures have not been well investigated. This study aimed to assess the effects of the phosphodiesterase inhibitors sildenafil and pentoxifylline on healing of mandibular fractures in rats. Materials and Methods A total of 60 rats were randomly divided into six groups of 10. Mandibular fracture was induced in all rats. After the surgical procedure, group C1 received saline, group S1 received 10 mg/kg sildenafil and group P1 received 50 mg/kg pentoxifylline. The rats were sacrificed after 1 week. Groups C4, S4, and P4 received pharmaceutical therapy as in groups C1, S1, and P1 but were sacrificed after 4 weeks. The samples then underwent histological analysis. Results The mean rate of bone healing of mandibular fractures in groups S1 and P1 was significantly higher than in group C1 at 1 week (P<0.001). The mean rate of bone healing of mandibular fractures in group P1 was higher than in group S1 at 1 week (P=0.04). The mean rate of bone healing of mandibular fractures in groups S4 (P=0.001) and P4 (P=0.004) was significantly higher than in group C4 at 4 weeks, but no significant difference was noted in the rate of healing between groups P4 and S4 (P=0.53). Conclusion Sildenafil and pentoxifylline can be used as adjuncts to enhance bone healing in rats.
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Affiliation(s)
- Mohsen MalekiGorji
- Department of Oral and Maxillofacial Surgery, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Arash Golestaneh
- Department of Oral and Maxillofacial Surgery, Dental School, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran
| | - Seyyed Mohammad Razavi
- Torabinejad Dental Research Center and Department of Oral and Maxillofacial Pathology, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
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Coates BA, McKenzie JA, Buettmann EG, Liu X, Gontarz PM, Zhang B, Silva MJ. Transcriptional profiling of intramembranous and endochondral ossification after fracture in mice. Bone 2019; 127:577-591. [PMID: 31369916 PMCID: PMC6708791 DOI: 10.1016/j.bone.2019.07.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/27/2019] [Accepted: 07/18/2019] [Indexed: 12/21/2022]
Abstract
Bone fracture repair represents an important clinical challenge with nearly 1 million non-union fractures occurring annually in the U.S. Gene expression differs between non-union and healthy repair, suggesting there is a pattern of gene expression that is indicative of optimal repair. Despite this, the gene expression profile of fracture repair remains incompletely understood. In this work, we used RNA-seq of two well-established murine fracture models to describe gene expression of intramembranous and endochondral bone formation. We used top differentially expressed genes, enriched gene ontology terms and pathways, callus cellular phenotyping, and histology to describe and contrast these bone formation processes across time. Intramembranous repair, as modeled by ulnar stress fracture, and endochondral repair, as modeled by femur full fracture, exhibited vastly different transcriptional profiles throughout repair. Stress fracture healing had enriched differentially expressed genes associated with bone repair and osteoblasts, highlighting the strong osteogenic repair process of this model. Interestingly, the PI3K-Akt signaling pathway was one of only a few pathways uniquely enriched in stress fracture repair. Full fracture repair involved a higher level of inflammatory and immune cell related genes than did stress fracture repair. Full fracture repair also differed from stress fracture in a robust downregulation of ion channel genes following injury, the role of which in fracture repair is unclear. This study offers a broad description of gene expression in intramembranous and endochondral ossification across several time points throughout repair and suggests several potentially intriguing genes, pathways, and cells whose role in fracture repair requires further study.
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Affiliation(s)
- Brandon A Coates
- Department of Orthopaedic Surgery, Washington University in St. Louis, MO, United States of America; Department of Biomedical Engineering, Washington University in St. Louis, MO, United States of America.
| | - Jennifer A McKenzie
- Department of Orthopaedic Surgery, Washington University in St. Louis, MO, United States of America
| | - Evan G Buettmann
- Department of Orthopaedic Surgery, Washington University in St. Louis, MO, United States of America; Department of Biomedical Engineering, Washington University in St. Louis, MO, United States of America
| | - Xiaochen Liu
- Department of Orthopaedic Surgery, Washington University in St. Louis, MO, United States of America
| | - Paul M Gontarz
- Department of Developmental Biology, Washington University in St. Louis, MO, United States of America
| | - Bo Zhang
- Department of Developmental Biology, Washington University in St. Louis, MO, United States of America
| | - Matthew J Silva
- Department of Orthopaedic Surgery, Washington University in St. Louis, MO, United States of America; Department of Biomedical Engineering, Washington University in St. Louis, MO, United States of America
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Dincel YM, Alagoz E, Arikan Y, Caglar AK, Dogru SC, Ortes F, Arslan YZ. Biomechanical, histological, and radiological effects of different phosphodiesterase inhibitors on femoral fracture healing in rats. J Orthop Surg (Hong Kong) 2019; 26:2309499018777885. [PMID: 29848169 DOI: 10.1177/2309499018777885] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To investigate the biomechanical, histological, and radiological effects of sildenafil and pentoxifylline on femoral fracture healing in rats. METHODS Forty-eight Sprague-Dawley rats were divided into three groups equally according to the pharmacological agents to be investigated. Femoral shaft fractures were formed in the left side. Group 1 (control group), group 2, and group 3 were administered with saline, sildenafil, and pentoxifylline during the fracture healing process, respectively. Eight rats from each group were euthanized on days 15 and 30. X-ray images of the rats were taken after euthanasia for radiographical examination. Femur samples were subjected to histopathological and biomechanical (three-point bending) examinations. RESULTS Radiologically, no difference between the Goldberg scores of the groups was found for day 15 ( p > 0.05), while higher Goldberg scores were obtained from group 2 than that of group 1 ( p > 0.05) and group 3 ( p < 0.05) for day 30. In the biomechanical analysis, higher mean breaking forces were found both for day 15 and day 30 from group 2 than those obtained from group 1 (for day 15 p > 0.05 and day 30 p > 0.05) and group 3 (for day 15 p < 0.05 and day 30 p < 0.01). Higher mean absorbed energy values were obtained from group 2 than those obtained from group 1 (for day 15 p > 0.05 and day 30 p < 0.05) and group 3 (for day 15 p < 0.01 and day 30 p < 0.01). A significant difference was not found between the histological scores of all groups ( p > 0.05) for day 15, while the histological score of group 1 on day 30 was found to be significantly lower than that of sildenafil and pentoxifylline groups ( p < 0.05). CONCLUSION Sildenafil had a positive effect on fracture healing, while pentoxifylline did not provide consistent positive effect.
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Affiliation(s)
- Yasar Mahsut Dincel
- 1 Department of Orthopaedics and Traumatology, Metin Sabancı Baltalimanı Bone Diseases Training and Research Hospital, Istanbul, Turkey
| | - Ender Alagoz
- 2 Department of Orthopaedics and Traumatology, İstanbul Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Yavuz Arikan
- 1 Department of Orthopaedics and Traumatology, Metin Sabancı Baltalimanı Bone Diseases Training and Research Hospital, Istanbul, Turkey
| | - Aysel Kara Caglar
- 3 Department of Pathology, İstanbul Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Suzan Cansel Dogru
- 4 Department of Mechanical Engineering, Faculty of Engineering, Istanbul University, Avcilar, Istanbul, Turkey
| | - Faruk Ortes
- 4 Department of Mechanical Engineering, Faculty of Engineering, Istanbul University, Avcilar, Istanbul, Turkey
| | - Yunus Ziya Arslan
- 4 Department of Mechanical Engineering, Faculty of Engineering, Istanbul University, Avcilar, Istanbul, Turkey
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MalekiGorji M, Golestaneh A. Histological Evaluation of the Effect of Sildenafil and Pentoxifylline on Mandibular Fracture Healing in Rats. JOURNAL OF RESEARCH IN DENTAL AND MAXILLOFACIAL SCIENCES 2019. [DOI: 10.29252/jrdms.4.3.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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Bennett PM, Stewart SK, Dretzke J, Bem D, Penn-Barwell JG. Preclinical therapies to prevent or treat fracture non-union: A systematic review. PLoS One 2018; 13:e0201077. [PMID: 30067783 PMCID: PMC6070249 DOI: 10.1371/journal.pone.0201077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/08/2018] [Indexed: 12/22/2022] Open
Abstract
Background Non-union affects up to 10% of fractures and is associated with substantial morbidity. There is currently no single effective therapy for the treatment or prevention of non-union. Potential treatments are currently selected for clinical trials based on results from limited animal studies, with no attempt to compare results between therapies to determine which have the greatest potential to treat non-union. Aim The aim of this systematic review was to define the range of therapies under investigation at the preclinical stage for the prevention or treatment of fracture non-union. Additionally, through meta-analysis, it aimed to identify the most promising therapies for progression to clinical investigation. Methods MEDLINE and Embase were searched from 1St January 2004 to 10th April 2017 for controlled trials evaluating an intervention to prevent or treat fracture non-union. Data regarding the model used, study intervention and outcome measures were extracted, and risk of bias assessed. Results Of 5,171 records identified, 197 papers describing 204 therapies were included. Of these, the majority were only evaluated once (179/204, 88%), with chitosan tested most commonly (6/204, 3%). Substantial variation existed in model design, length of survival and duration of treatment, with results poorly reported. These factors, as well as a lack of consistently used objective outcome measures, precluded meta-analysis. Conclusion This review highlights the variability and poor methodological reporting of current non-union research. The authors call for a consensus on the standardisation of animal models investigating non-union, and suggest journals apply stringent criteria when considering animal work for publication.
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Affiliation(s)
- Philippa M. Bennett
- Institute of Naval Medicine, Crescent Road, Alverstoke, Hampshire, United Kingdom
- * E-mail:
| | - Sarah K. Stewart
- Royal Centre for Defence Medicine, Queen Elizabeth Hospital, Edgbaston, Birmingham, United Kingdom
| | - Janine Dretzke
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Danai Bem
- Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
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Wang R, Zhang H, Sun S, Wang Y, Chai Y, Yuan Y. Effect of Ginkgo Leaf Tablets on the Pharmacokinetics of Amlodipine in Rats. Eur J Drug Metab Pharmacokinet 2018; 41:825-833. [PMID: 26650374 DOI: 10.1007/s13318-015-0312-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Ginkgo leaf tablet (GLT) is an effective traditional Chinese multi-herbal formula, which is often combined with amlodipine for treating senile hypertension in clinic. The aim of this study was to study the pharmacokinetics of amlodipine after oral administration of amlodipine and GLT and to investigate the potential for pharmacokinetic herb-drug interactions between GLT and amlodipine in rats. METHODS A liquid chromatography-tandem mass spectrometry (LC-MS/MS) analytical method was developed for quantification of amlodipine in rat plasma. The accuracy, precision, linearity, selectivity and recovery were all within an acceptable range. Male Sprague-Dawley rats were randomly assigned to two groups: amlodipine group and amlodipine + GLT group. Plasma concentrations of amlodipine were determined at the designated time points after oral administration by using the developed LC-MS/MS method, and the main pharmacokinetic parameters were calculated and compared. As ginkgolides A, ginkgolides B, bilobalide, quercetin and kaempferol were the main components of GLT, the effects of these ingredients in GLT on metabolism of amlodipine were further investigated in rat liver microsomes. RESULTS The pharmacokinetic parameters, maximum plasma concentration (C max), time to reach C max (T max), area under the concentration-time curve (AUC), area under the first moment plasma concentration-time curve (AUMC) and elimination half-life (t 1/2), of amlodipine were significantly increased in amlodipine + GLT group, which suggested that GLT may influence the pharmacokinetic behavior after oral co-administration with amlodipine. Amlodipine is metabolized by cytochrome P450 (CYP) 3A4, so it was speculated that GLT may change the pharmacokinetic parameters of amlodipine through modulating the metabolism of CYP3A4 enzymes. When ginkgolides B, bilobalide, or quercetin and amlodipine were co-incubated in the rat liver microsomes, the metabolic rate of amlodipine was prolonged to 533.1, 216.1 and 407.6 min, respectively, from 73.7 min. CONCLUSIONS These results suggested that these components in GLT inhibit the metabolism of amlodipine. So it can be speculated that the herb-drug interactions between GLT and amlodipine resulted from inhibiting the metabolism of amlodipine by GLT when they were co-administered.
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Affiliation(s)
- Rong Wang
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Rd, Shanghai, 200011, China
| | - Hai Zhang
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, School of Pharmacy, Second Military Medical University, Shanghai, 200438, China
| | - Sen Sun
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, School of Pharmacy, Second Military Medical University, Shanghai, 200438, China
| | - Yuanyuan Wang
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Rd, Shanghai, 200011, China
| | - Yifeng Chai
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Yongfang Yuan
- Department of Pharmacy, Shanghai 9th People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Rd, Shanghai, 200011, China.
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Marcazzan S, Weinstein RL, Del Fabbro M. Efficacy of platelets in bone healing: A systematic review on animal studies. Platelets 2017. [PMID: 28643535 DOI: 10.1080/09537104.2017.1327652] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In presence of large bone defects, delayed bone union, non-union, fractures, and implant surgery, bone reconstruction may be necessary. Different strategies have been employed to enhance bone healing among which the use of autologous platelet concentrates. Due to the high content of platelets and platelet-derived bioactive molecules (e.g., growth factors, antimicrobial peptides), they are promising candidates to increase bone healing. However, a high heterogeneity of both preclinical and clinical studies resulted in contrasting results. Aim of the present systematic review was to evaluate the efficacy of platelet concentrates in animal models of bone regeneration, considering the possible factors which might affect the outcome. An electronic search was performed on MEDLINE and SCOPUS databases. Animal studies with a minimum follow up of 2 weeks and a sample size of five subjects per group, using platelet concentrates for bone regeneration, were included. Articles underwent risk of bias assessment and further quality evaluation was done. Sixty studies performed on six animal species (rat, rabbit, dog, sheep, goat, and mini-pig) were included. The present part of the review considers only studies performed on rats and rabbits (35 articles). The majority of the studies were considered at medium risk of bias. Animal species, healthy models, platelet, growth factors and leukocytes concentration, and type of bone defect seemed to influence the efficacy of platelet concentrates in bone healing. However, final conclusions were not be drawn, since only few included studies evaluated leukocyte, growth factor content, or presence of other bioactive molecules in platelet concentrates. Further studies with a standardized protocol including characterization of the final products will provide useful information for clinical application of platelet concentrates in bone surgery.
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Affiliation(s)
- Sabrina Marcazzan
- a Dipartimento di Scienze Biomediche , Chirurgiche e Odontoiatriche, Università degli Studi di Milano , Milan , Italy.,b Department of Nanomedicine , Houston Methodist Research Institute , Houston , TX , USA
| | - Roberto Lodovico Weinstein
- a Dipartimento di Scienze Biomediche , Chirurgiche e Odontoiatriche, Università degli Studi di Milano , Milan , Italy.,c IRCCS Istituto Ortopedico Galeazzi , via Riccardo Galeazzi 4, Milan , Italy
| | - Massimo Del Fabbro
- a Dipartimento di Scienze Biomediche , Chirurgiche e Odontoiatriche, Università degli Studi di Milano , Milan , Italy.,c IRCCS Istituto Ortopedico Galeazzi , via Riccardo Galeazzi 4, Milan , Italy
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Atalay Y, Gunes N, Guner MD, Akpolat V, Celik MS, Guner R. Pentoxifylline and electromagnetic field improved bone fracture healing in rats. Drug Des Devel Ther 2015; 9:5195-201. [PMID: 26388687 PMCID: PMC4571933 DOI: 10.2147/dddt.s89669] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background The aim of this study was to evaluate the effects of a phosphodiesterase inhibitor pentoxifylline (PTX), electromagnetic fields (EMFs), and a mixture of both materials on bone fracture healing in a rat model. Materials and methods Eighty male Wistar rats were randomly divided into four groups: Group A, femur fracture model with no treatment; Group B, femur fracture model treated with PTX 50 mg/kg/day intraperitoneal injection; Group C, femur fracture model treated with EMF 1.5±0.2 Mt/50 Hz/6 hours/day; and Group D, femur fracture model treated with PTX 50 mg/kg/day intraperitoneal injection and EMF 1.5±0.2 Mt/50 Hz/6 hours/day. Results Bone fracture healing was significantly better in Group B and Group C compared to Group A (P<0.05), but Group D did not show better bone fracture healing than Group A (P>0.05). Conclusion It can be concluded that both a specific EMF and PTX had a positive effect on bone fracture healing but when used in combination, may not be beneficial.
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Affiliation(s)
- Yusuf Atalay
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Afyon Kocatepe University, Afyonkarahisar, Turkey
| | - Nedim Gunes
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakır, Turkey
| | | | - Veysi Akpolat
- Department of Biophysics, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
| | - Mustafa Salih Celik
- Department of Biophysics, Faculty of Medicine, Dicle University, Diyarbakır, Turkey
| | - Rezzan Guner
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Dicle University, Diyarbakır, Turkey
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