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Sun T, Xing HL, Chen ZZ, Tao ZS, Li J. Simvastatin reverses the harmful effects of high fat diet on titanium rod osseointegration in ovariectomized rats. J Bone Miner Metab 2021; 39:944-951. [PMID: 34189660 DOI: 10.1007/s00774-021-01243-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/31/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The objectives of the present study were to determine whether simvastatin (SIM) could reverse the harmful effects on titanium rod osseointegration in ovariectomized rats fed high-fat diet (HFD). MATERIALS AND METHODS Ovariectomized female Sprague-Dawley rats were randomly allocated to three groups and received SIM treatment plus HFD for 12 weeks. We then evaluated the microstructure parameters, histological parameters, biomechanical parameters, bone turnover, and blood lipid level. RESULTS After 12 weeks of treatment, SIM can significantly improve bone formation around the titanium rod and osseointegration including higher values of maximum push-out force, bone area ratio (BAR), bone-to-implant contact (BIC), bone mineral density (BMD), bone volume (BV/TV), trabecular number (Tb.N), trabecular thickness (Tb.Th), mean connective density (Conn.D) when compared with the HFD group. In addition, system administration of SIM showed positive effects on collagen type 1 cross-linked C-telopeptide (CTX-1), procollagen I N-terminal propeptide (PINP), total cholesterol (TC), triglycerides (TGL), low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol. Compared with the HFD group, lower values of CTX-1, P1NP, TC, TGL and LDL were observed in the SIM+HFD group (P < 0.05). CONCLUSION Our findings revealed that HFD may have an adverse effect on osseointegration in osteoporotic conditions, and the harmful effect of HFD on osseointegration could be reversed by SIM.
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Affiliation(s)
- Tao Sun
- Department of Orthopedics, The Fifth Affiliated Hospital Lishui Municipal Central Hospital, Wenzhou Medical University, Lishui, Zhejiang, People's Republic of China
| | - Hai-Lin Xing
- Department of Orthopedics, The Fifth Affiliated Hospital Lishui Municipal Central Hospital, Wenzhou Medical University, Lishui, Zhejiang, People's Republic of China
| | - Zhen-Zhong Chen
- Department of Orthopedics, The Fifth Affiliated Hospital Lishui Municipal Central Hospital, Wenzhou Medical University, Lishui, Zhejiang, People's Republic of China
| | - Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, Anhui, People's Republic of China
| | - Jian Li
- Department of Orthopedics, The Fifth Affiliated Hospital Lishui Municipal Central Hospital, Wenzhou Medical University, Lishui, Zhejiang, People's Republic of China.
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Nordberg RC, Huebner P, Schuchard KG, Mellor LF, Shirwaiker RA, Loboa EG, Spang JT. The evaluation of a multiphasic 3D-bioplotted scaffold seeded with adipose derived stem cells to repair osteochondral defects in a porcine model. J Biomed Mater Res B Appl Biomater 2021; 109:2246-2258. [PMID: 34114736 DOI: 10.1002/jbm.b.34886] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 03/02/2021] [Accepted: 05/29/2021] [Indexed: 12/15/2022]
Abstract
There is a need for the development of effective treatments for focal articular cartilage injuries. We previously developed a multiphasic 3D-bioplotted osteochondral scaffold design that can drive site-specific tissue formation when seeded with adipose-derived stem cells (ASC). The objective of this study was to evaluate this scaffold in a large animal model. Osteochondral defects were generated in the trochlear groove of Yucatan minipigs and repaired with scaffolds that either contained or lacked an electrospun tidemark and were either unseeded or seeded with ASC. Implants were monitored via computed tomography (CT) over the course of 4 months of in vivo implantation and compared to both open lesions and autologous explants. ICRS II evaluation indicated that defects with ASC-seeded scaffolds had healing that most closely resembled the aulogous explant. Scaffold-facilitated subchondral bone repair mimicked the structure of native bone tissue, but cartilage matrix staining was not apparent within the scaffold. The open lesions had the highest volumetric infill detected using CT analysis (p < 0.05), but the repair tissue was largely disorganized. The acellular scaffold without a tidemark had significantly more volumetric filling than either the acellular or ASC seeded groups containing a tidemark (p < 0.05), suggesting that the tidemark limited cell infiltration into the cartilage portion of the scaffold. Overall, scaffold groups repaired the defect more successfully than an open lesion but achieved limited repair in the cartilage region. With further optimization, this approach holds potential to treat focal cartilage lesions in a highly personalized manner using a human patient's own ASC cells.
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Affiliation(s)
- Rachel C Nordberg
- College of Engineering, University of Missouri, Columbia, Missouri, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Pedro Huebner
- Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA.,School of Industrial and Systems Engineering, University of Oklahoma, Norman, Oklahoma, USA
| | - Karl G Schuchard
- Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Liliana F Mellor
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA
| | - Rohan A Shirwaiker
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina, USA.,Department of Industrial and Systems Engineering, North Carolina State University, Raleigh, North Carolina, USA.,Comparative Medicine Institute, North Carolina State University, Raleigh, North Carolina, USA
| | - Elizabeth G Loboa
- College of Engineering, University of Missouri, Columbia, Missouri, USA.,Office of the Provost, Southern Methodist University, Dallas, Texas, USA
| | - Jeffery T Spang
- Department of Orthopaedics, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
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Luo P, Yu L, Lin Q, Wang C, Yang D, Tang S. Strontium Modified Calcium Sulfate Hemihydrate Scaffold Incorporating Ginsenoside Rg1/Gelatin Microspheres for Bone Regeneration. Front Bioeng Biotechnol 2020; 8:888. [PMID: 33014995 PMCID: PMC7461947 DOI: 10.3389/fbioe.2020.00888] [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: 03/18/2020] [Accepted: 07/10/2020] [Indexed: 12/26/2022] Open
Abstract
The aim of this study was to prepare a promising biomaterial for bone tissue repair and regeneration. The Strontium - calcium sulfate hemihydrate (Sr-α-CaS) scaffold incorporating gelatin microspheres (GMs) encapsulated with Ginsenoside Rg1 (Rg1) was designed. The scaffolds of Rg1/GMs/Sr-α-CaS showed sustained release of Rg1, good biocompatibility and ability of promoting osteogenic differentiation and angiogenesis in vitro. The scaffolds were implanted into animal model of cranial bone defect to characterize bone tissue repair and regeneration in vivo. From the images of Micro-CT, it was obvious that the most bone tissue was formed in Rg1/GMs/Sr-α-CaS group in 12 weeks. New bone structure, collagen and mineralization were analyzed with staining of HE, Masson and Safranin O-Fast green and showed good distribution. The expression of osteocalcin of Rg1/GMs/Sr-α-CaS indicated new bone formation in defect site. The results revealed that synergy of Rg1 and Sr showed the best effect of bone repair and regeneration, which provided a new candidate for bone defect repair in clinic.
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Affiliation(s)
- Peng Luo
- Department of Orthopaedics, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital), Shenzhen, China
- Department of Orthopaedics, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Lan Yu
- Department of Laboratory, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital), Shenzhen, China
| | - Qiang Lin
- Department of Orthopaedics, Guangdong Hospital of Traditional Chinese Medicine, Guangzhou, China
| | - Changde Wang
- Department of Geriatric Orthopeadics, Shenzhen Pingle Orthopaedic Hospital, Shenzhen, China
| | - Dazhi Yang
- Department of Orthopaedics, Huazhong University of Science and Technology Union Shenzhen Hospital (Nanshan Hospital), Shenzhen, China
- Department of Orthopaedics, The 6th Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Shuo Tang
- Department of Orthopaedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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Tamaddon M, Liu C. Enhancing Biological and Biomechanical Fixation of Osteochondral Scaffold: A Grand Challenge. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1059:255-298. [PMID: 29736578 DOI: 10.1007/978-3-319-76735-2_12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Osteoarthritis (OA) is a degenerative joint disease, typified by degradation of cartilage and changes in the subchondral bone, resulting in pain, stiffness and reduced mobility. Current surgical treatments often fail to regenerate hyaline cartilage and result in the formation of fibrocartilage. Tissue engineering approaches have emerged for the repair of cartilage defects and damages to the subchondral bones in the early stage of OA and have shown potential in restoring the joint's function. In this approach, the use of three-dimensional scaffolds (with or without cells) provides support for tissue growth. Commercially available osteochondral (OC) scaffolds have been studied in OA patients for repair and regeneration of OC defects. However, some controversial results are often reported from both clinical trials and animal studies. The objective of this chapter is to report the scaffolds clinical requirements and performance of the currently available OC scaffolds that have been investigated both in animal studies and in clinical trials. The findings have demonstrated the importance of biological and biomechanical fixation of the OC scaffolds in achieving good cartilage fill and improved hyaline cartilage formation. It is concluded that improving cartilage fill, enhancing its integration with host tissues and achieving a strong and stable subchondral bone support for overlying cartilage are still grand challenges for the early treatment of OA.
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Affiliation(s)
- Maryam Tamaddon
- Institute of Orthopaedics & Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK
| | - Chaozong Liu
- Institute of Orthopaedics & Musculoskeletal Science, Division of Surgery & Interventional Science, University College London, Royal National Orthopaedic Hospital, Stanmore, UK.
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Pre-clinical and Clinical Management of Osteochondral Lesions. REGENERATIVE STRATEGIES FOR THE TREATMENT OF KNEE JOINT DISABILITIES 2017. [DOI: 10.1007/978-3-319-44785-8_8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Kon E, Filardo G, Perdisa F, Di Martino A, Busacca M, Balboni F, Sessa A, Marcacci M. A one-step treatment for chondral and osteochondral knee defects: clinical results of a biomimetic scaffold implantation at 2 years of follow-up. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2437-2444. [PMID: 24599553 DOI: 10.1007/s10856-014-5188-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Accepted: 02/25/2014] [Indexed: 06/03/2023]
Abstract
The increasing interest in the role of subchondral bone with regard to articular surface disease led to the development of new bioengineered strategies. Aim of this study is to evaluate the clinical and MRI outcome after the implantation of a nanostructured biomimetic three-phasic collagen-hydroxyapatite construct for the treatment of chondral and osteochondral defects of the knee in a large cohort of patients. Seventy-nine patients (63 M, 16 W), affected by grade III-IV femoral condyle or trochlea chondral lesions or osteochondritis dissecans (OCD) were consecutively treated. Mean age was 31.0 ± 11.3 years, mean lesion size was 3.2 ± 2.0 cm(2). Fifty patients underwent previous surgeries, concurrent procedures were necessary in 39 cases. The clinical outcome was evaluated using the IKDC and Tegner scores at 12 and 24 months of follow-up. At follow-up times an MRI was performed and evaluated with the MOCART score. All the scores improved significantly from the baseline. IKDC subjective score showed a further increase between 12 and 24 months of follow-up, and 82.2% of the patients improved their symptoms at the final evaluation. Patients affected by OCDs had better results than those with degenerative lesions. Some abnormal MRI findings were present, even though no correlation was found with the clinical outcome. This one-step biomimetic approach developed to favor osteochondral tissue regeneration is effective in treating knees affected by damages of the articular surface, leading to a significant clinical improvement. However, abnormal MRI findings were present, even if not correlated with the clinical outcome.
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Affiliation(s)
- Elizaveta Kon
- II Clinic - Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Via Di Barbiano 1/10, 40136, Bologna, Italy,
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