1
|
Tao ZS, Shen CL. Favorable osteogenic activity of vericiguat doped in β-tricalcium phosphate: In vitro and in vivo studies. J Biomater Appl 2024; 38:1073-1086. [PMID: 38569649 DOI: 10.1177/08853282241245543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Recently, more and more studies have shown that guanylate cyclase, an enzyme that synthesizes cyclic guanosine monophosphate (cGMP), plays an important role in bone metabolism. Vericiguat (VIT), a novel oral soluble guanylate cyclase stimulator, directly generates cyclic guanosine monophosphate and reduce the death incidence from cardio-vascular causes or hospitalization. Recent studies have shown beneficial effects of VIT in animal models of osteoporosis, but very little is currently known about the effects of VIT on bone defects in the osteoporotic states. Therefore, in this study, β-tricalcium phosphate (β-TCP) was used as a carrier to explore the effect of local VIT administration on the repair of femoral metaphyseal bone defects in ovariectomized (OVX) rats. When MC3T3-E1 was cultured in the presence of H2H2, VIT, similar to Melatonin (MT), therapy could increase the matrix mineralization and ALP, SOD2, SIRT1, and OPG expression, reduce ROS and Mito SOX production, RANKL expression, Promote the recovery of mitochondrial membrane potential. In the OVX rat model, VIT increases the osteogenic effect of β-TCP and better results were obtained at a dose of 5 mg. Local use of VIT can inhibit increased OC, BMP2 and RUNX2 expressions in bone tissue, while decreased SOST and TRAP expressions by RT-PCR and immunohistochemistry. Thereby, VIT stimulates bone regeneration and is a promising candidate for promoting bone repair in osteoporosis.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Cai-Liang Shen
- Department of Spinal Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| |
Collapse
|
2
|
Tao Z, Tao M, Zhou M, Wu XJ. Niacin treatment prevents bone loss in iron overload osteoporotic rats via activation of SIRT1 signaling pathway. Chem Biol Interact 2024; 388:110827. [PMID: 38081572 DOI: 10.1016/j.cbi.2023.110827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 10/31/2023] [Accepted: 11/30/2023] [Indexed: 12/23/2023]
Abstract
Recently, more and more studies have revealed that iron overload can lead to osteoporosis by inducing oxidative stress. Niacin (NAN), also known as nicotinate or vitamin B3, has been confirmed to possess potent antioxidative effects. In addition, very little is currently known about the protective effects of NAN on iron overload in osteoporotic bone tissue. Therefore, we aimed to evaluate the protective effect of niacin on iron overload-induced bone injury and to investigate the effect and underlying mechanisms of the niacin and iron overload on intracellular antioxidant properties. When MC3T3-E1 and RAW264.7 cells were cultured in the presence of ammonium ferric citrate(FAC), NAN therapy could increase the matrix mineralization and promote expression of osteogenic markers in MC3T3-E1, inhibit osteoclastic differentiation of RAW264.7 cells, while increasing intracellular reactive oxygen species (ROS) levels and strengthening mitochondrial membrane potential (MMP). In the ovariectomized (OVX) rat model, NAN had an obvious protective effect against iron-overloaded injury. Meanwhile, superoxide dismutase 2 (SOD2), intracellular antioxidant enzymes and silent information regulator type 1 (SIRT1), were up-regulated in response to NAN exposures in MC3T3-E1. Furthermore, SIRT1 inhibitor EX527 attenuated the protective effects of NAN. Results revealed that NAN could stimulate osteogenic differentiation, inhibit osteoclastic differentiation and markedly increased antioxidant properties in cells through the induction of SIRT1. Studies suggest that niacin is a promising agent for preventing bone loss in iron overload conditions.
Collapse
Affiliation(s)
- Zhoushan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China; Anhui Province Key Laboratory of Non-coding RNA Basic and Clinical Transformation, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China.
| | - Ma Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| | - Maosheng Zhou
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| | - Xing-Jing Wu
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, PR China
| |
Collapse
|
3
|
NHANES cross sectional study of aspirin and fractures in the elderly. Sci Rep 2023; 13:1879. [PMID: 36725971 PMCID: PMC9892582 DOI: 10.1038/s41598-023-29029-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 01/30/2023] [Indexed: 02/03/2023] Open
Abstract
Bone fractures are a global public health concern, yet no thorough investigation of low-dose aspirin usage to prevent fractures in the elderly has been conducted. Many interventional human and animal studies have tried to detect the correct role of low-dose aspirin on fractures in elderly persons. The literature doesn't consist of a retrospective observational study that includes a large number of older individuals and evaluates the accurate effect of aspirin on the fractures post falling from low heights. This cross-sectional includes 7132 elderly persons and aimed to detect if there was a link between taking low-dose aspirin to prevent fractures in the elderly. Data was extracted from the National Health and Nutrition Examination Survey (NHANES) database for 2017-2020 and 2013-2014. Demographic and examination data were collected during in-home interviews and study visits to a mobile examination center. Standardized questionnaires were used to collect information such as age, gender, race, educational level, and family income-to-poverty ratio. Body mass index (BMI), weight, standing height, upper leg length, upper arm length, arm circumference, and wrist circumference were all measured during the examination. The study examined 8127 patients, with 7132 elderly patients suitable for data analysis. The odds ratio of fractures due to a fall from standing height or less was 0.963 (95 percent confidence interval 0.08-1.149) in low-dose aspirin users, while having parents with osteoporosis had a related risk of 1.23. (95 percent confidence interval 0.81-1.8). The total number of fractures was 1295; with hip fractures constituting up to 13.82%, wrist fractures of 66.56%, and spine fractures of 19.61%. There was no significant difference in femur and spine bone mineral density (BMD) in the two groups (use low dose aspirin and don't use). Females had a 5.6 times greater fracture risk related to a fall from standing height or less (1 time or more) than males (P-value < 0.001). Furthermore, taking aspirin had no effect on the occurrence of fractures from standing height or less in older people (P-value = 0.468). In addition, the logistic regression after performing the propensity matching score confirmed that there was no impact of taking aspirin on the occurrence of fractures (P-value > 0.05). This cross-sectional study reveals that taking low-dose aspirin to prevent fractures in the elderly is statistically insignificant. However, fractures are more common in older persons, especially in older women; thus, more widespread injury prevention initiatives and access to osteoporosis prevention and diagnosis for older people should improve to minimize the overall burden.
Collapse
|
4
|
Li S, Xiaowen Y, Yang Y, Liu L, Sun Y, Liu Y, Yin L, Chen Z. Osteogenic and anti-inflammatory effect of the multifunctional bionic hydrogel scaffold loaded with aspirin and nano-hydroxyapatite. Front Bioeng Biotechnol 2023; 11:1105248. [PMID: 36761294 PMCID: PMC9902883 DOI: 10.3389/fbioe.2023.1105248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/13/2023] [Indexed: 01/26/2023] Open
Abstract
Although tissue engineering offered new approaches to repair bone defects, it remains a great challenge to create a bone-friendly microenvironment and rebuild bone tissue rapidly by a scaffold with a bionic structure. In this study, a multifunctional structurally optimized hydrogel scaffold was designed by integrating polyvinyl alcohol (PVA), gelatin (Gel), and sodium alginate (SA) with aspirin (ASA) and nano-hydroxyapatite (nHAP). The fabrication procedure is through a dual-crosslinking process. The chemical constitution, crystal structure, microstructure, porosity, mechanical strength, swelling and degradation property, and drug-release behavior of the hydrogel scaffold were analyzed. Multi-hydrogen bonds, electrostatic interactions, and strong "egg-shell" structure contributed to the multi-network microstructure, bone tissue-matched properties, and desirable drug-release function of the hydrogel scaffold. The excellent performance in improving cell viability, promoting cell osteogenic differentiation, and regulating the inflammatory microenvironment of the prepared hydrogel scaffold was verified using mouse pre-osteoblasts (MC3T3-E1) cells. And the synergistic osteogenic and anti-inflammatory functions of aspirin and nano-hydroxyapatite were also verified. This study provided valuable insights into the design, fabrication, and biological potential of multifunctional bone tissue engineering materials with the premise of constructing a bone-friendly microenvironment.
Collapse
Affiliation(s)
- Shaoping Li
- Key Laboratory of Stomatology in Hebei Province, Hospital of Stomatology Hebei Medical University, Shijiazhuang, China
| | - Yundeng Xiaowen
- Key Laboratory of Stomatology in Hebei Province, Hospital of Stomatology Hebei Medical University, Shijiazhuang, China
| | - Yuqing Yang
- Key Laboratory of Stomatology in Hebei Province, Hospital of Stomatology Hebei Medical University, Shijiazhuang, China
| | - Libo Liu
- College of Dentistry, Hebei Medical University, Shijiazhuang, China
| | - Yifan Sun
- College of Dentistry, Hebei Medical University, Shijiazhuang, China
| | - Ying Liu
- College of Dentistry, Hebei Medical University, Shijiazhuang, China
| | - Lulu Yin
- College of Dentistry, Hebei Medical University, Shijiazhuang, China
| | - Zhiyu Chen
- Key Laboratory of Stomatology in Hebei Province, Hospital of Stomatology Hebei Medical University, Shijiazhuang, China,*Correspondence: Zhiyu Chen,
| |
Collapse
|
5
|
Mishima K, Okabe YT, Mizuno M, Ohno K, Kitoh H, Imagama S. Efficacy of soluble lansoprazole-impregnated beta-tricalcium phosphate for bone regeneration. Sci Rep 2022; 12:20550. [PMID: 36446942 PMCID: PMC9708645 DOI: 10.1038/s41598-022-25184-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 11/25/2022] [Indexed: 11/30/2022] Open
Abstract
The proton pump inhibitor lansoprazole has been previously identified to upregulate the expression and transcriptional activity of runt-related transcription factor 2 (Runx2) that promotes lineage commitment and differentiation of osteoprogenitor cells. We could not elicit the expected efficacy of insoluble lansoprazole in enhancing osteogenesis when combined with beta-tricalcium phosphate (β-TCP) bone substitutes. This study aimed to evaluate the effects of soluble lansoprazole on in vitro osteoblastogenesis and new bone formation in vivo. Commercially available human mesenchymal stem cells or patient-derived bone marrow-derived stromal cells were treated with 20 µM of soluble lansoprazole at the beginning of osteogenic induction. Soluble lansoprazole-impregnated β-TCP materials were embedded in the cortical bone defect model of rabbits. Rabbits were sacrificed four weeks postoperatively and undecalcified bone specimens were prepared for evaluation of intra-material new bone formation. Only a 1-day treatment with soluble lansoprazole facilitated osteoblastic differentiation and matrix calcium deposition when added to undifferentiated human mesenchymal stromal cells at the beginning of the osteogenic differentiation. Soluble lansoprazole dose-dependently accelerated intra-material new bone formation when being impregnated with porous β-TCP artificial bones. Local use of soluble lansoprazole can be applicable for fracture and bone defect repair when combined with porous β-TCP scaffolds.
Collapse
Affiliation(s)
- Kenichi Mishima
- grid.27476.300000 0001 0943 978XDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Aichi 466-8550 Japan
| | - Yuka Tsukagoshi Okabe
- grid.437848.40000 0004 0569 8970Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Aichi 466-8550 Japan
| | - Masaaki Mizuno
- grid.437848.40000 0004 0569 8970Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Aichi 466-8550 Japan
| | - Kinji Ohno
- grid.27476.300000 0001 0943 978XDivision of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi 466-8550 Japan
| | - Hiroshi Kitoh
- Department of Orthopaedic Surgery, Aichi Children’s Health and Medical Center, 7-426 Morioka-cho, Obu, Aichi 474-8710 Japan
| | - Shiro Imagama
- grid.27476.300000 0001 0943 978XDepartment of Orthopaedic Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-Cho, Showa-Ku, Nagoya, Aichi 466-8550 Japan
| |
Collapse
|
6
|
Zhou MS, Tao ZS. Systemic administration with melatonin in the daytime has a better effect on promoting osseointegration of titanium rods in ovariectomized rats. Bone Joint Res 2022; 11:751-762. [DOI: 10.1302/2046-3758.1111.bjr-2022-0017.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Aims This study examined whether systemic administration of melatonin would have different effects on osseointegration in ovariectomized (OVX) rats, depending on whether this was administered during the day or night. Methods In this study, a titanium rod was implanted in the medullary cavity of one femoral metaphysis in OVX rats, and then the rats were randomly divided into four groups: Sham group (Sham, n = 10), OVX rat group (OVX, n = 10), melatonin day treatment group (OVX + MD, n = 10), and melatonin night treatment group (OVX + MN, n = 10). The OVX + MD and OVX + MN rats were treated with 30 mg/kg/day melatonin at 9 am and 9 pm, respectively, for 12 weeks. At the end of the research, the rats were killed to obtain bilateral femora and blood samples for evaluation. Results Micro-CT and histological evaluation showed that the bone microscopic parameters of femoral metaphysis trabecular bone and bone tissue around the titanium rod in the OVX + MD group demonstrated higher bone mineral density, bone volume fraction, trabecular number, connective density, trabecular thickness, and lower trabecular speculation (p = 0.004) than the OVX + MN group. Moreover, the biomechanical parameters of the OVX + MD group showed higher pull-out test and three-point bending test values, including fixation strength, interface stiffness, energy to failure, energy at break, ultimate load, and elastic modulus (p = 0.012) than the OVX + MN group. In addition, the bone metabolism index and oxidative stress indicators of the OVX + MD group show lower values of Type I collagen cross-linked C-telopeptide, procollagen type 1 N propeptide, and malondialdehyde (p = 0.013), and higher values of TAC and SOD (p = 0.002) compared with the OVX + MN group. Conclusion The results of our study suggest that systemic administration with melatonin at 9 am may improve the initial osseointegration of titanium rods under osteoporotic conditions more effectively than administration at 9 pm. Cite this article: Bone Joint Res 2022;11(11):751–762.
Collapse
Affiliation(s)
- Mao-Sheng Zhou
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| | - Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu, China
| |
Collapse
|
7
|
Tao ZS, Li TL, Wei S. Probucol promotes osteoblasts differentiation and prevents osteoporosis development through reducing oxidative stress. Mol Med 2022; 28:75. [PMID: 35764958 PMCID: PMC9238135 DOI: 10.1186/s10020-022-00503-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/21/2022] [Indexed: 12/13/2022] Open
Abstract
Probucol (PBC) is a potent cholesterol-lowering drug and has been studied extensively for its powerful antioxidative stress. The purpose of this study is to investigate the role of PBC in ovariectomized rat model and to explore the mechanism of osteogenic differentiation of MC3TE-E1 Cells. RT-qPCR and Immunofluorescence were used to measure the expression level of SOD2, SIRT1, intracellular oxidative stress levels and osteogenic markers proteins. Moreover, CCK-8 assay was conducted to detect cell viability. Alizarin red staining and alkaline phosphatase staining were applied to examine osteogenic function and calcium deposits. The ovariectomized rat model was set up successfully and HE staining were employed to examine femoral trabeculae tissue. Our results showed that PBC suppressed MC3TE-E1 resist oxidative stress to promote osteogenic differentiation. Additionally, it was confirmed that PBC promoted osteogenic differentiation of MC3TE-E1 through inhibiting oxidative stress. Further study indicated that PBC exerted its beneficial function by suppressing oxidative stress-mediated alter bone metabolism to alleviate osteoporosis in vivo. Our research suggested that the PBC-modulated oxidative stress inhibition is responsible for activation of the process of osteogenic differentiation, providing a novel insight into the treatment of osteoporosis.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China.
| | - Tian-Lin Li
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Shan Wei
- School of Mechanical Engineering, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China.,Additive Manufacturing Institute of Anhui Polytechnic University, Anhui Polytechnic University, Wuhu, 241000, People's Republic of China
| |
Collapse
|
8
|
Fattahi R, Mohebichamkhorami F, Khani MM, Soleimani M, Hosseinzadeh S. Aspirin effect on bone remodeling and skeletal regeneration: Review article. Tissue Cell 2022; 76:101753. [PMID: 35180553 DOI: 10.1016/j.tice.2022.101753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 01/21/2022] [Accepted: 02/06/2022] [Indexed: 12/21/2022]
Abstract
Bone tissues are one of the most complex tissues in the body that regenerate and repair themselves spontaneously under the right physiological conditions. Within the limitations of treating bone defects, mimicking tissue engineering through the recruitment of scaffolds, cell sources and growth factors, is strongly recommended. Aspirin is one of the non-steroidal anti-inflammatory drugs (NSAIDs) and has been used in clinical studies for many years due to its anti-coagulant effect. On the other hand, aspirin and other NSAIDs activate cytokines and some mediators in osteoclasts, osteoblasts and their progenitor cells in a defect area, thereby promoting bone regeneration. It also stimulates angiogenesis by increasing migration of endothelial cells and the newly developed vessels are of emergency in bone fracture repair. This review covers the role of aspirin in bone tissue engineering and also, highlights its chemical reactions, mechanisms, dosages, anti-microbial and angiogenesis activities.
Collapse
Affiliation(s)
- Roya Fattahi
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Mohebichamkhorami
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mehdi Khani
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Simzar Hosseinzadeh
- Department of Tissue engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
9
|
Tao Z, Li TL, Yang M, Xu HG. Silibinin Can Promote Bone Regeneration of Selenium Hydrogel by Reducing the Oxidative Stress Pathway in Ovariectomized Rats. Calcif Tissue Int 2022; 110:723-735. [PMID: 35048133 DOI: 10.1007/s00223-021-00936-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/06/2021] [Indexed: 11/02/2022]
Abstract
Osteoporosis-related bone defects are a major public health concern. Considering poor effects of a singular pharmacological treatment, many have sought combination therapies, including local treatment combined with systemic intervention. Based on recent evidence that selenium and silibinin increase bone formation and bone mineral density, it is hypothesized that systemic administration with silibinin plus local treatment with selenium may have an additive effect on bone regeneration in an OVX rat model with bone defects. To verify this hypothesis, 3-month-old ovariectomized Sprague- Dawley rats (n = 10/gp) were intraperitoneally with a dose of 50 mg/kg silibinin with selenium hydrogel scaffolds implanted into femoral metaphysis bone defect. Moreover, the MC3T3-E1 cells were co-cultured with selenium and silibinin, and observed any change of cell viability, ROS, and osteogenic activity. Experiment results show that the cell mineralization and osteogenic activity of silibinin plus selenium (SSe) group is enormously higher than the control (Con) group and selenium (Se) group, while ROS appears to be immensely reduced. Osteogenic protein expressions such as SIRT1, SOD2, RUNX-2 and OC of SSe group are significantly higher than Con group and Se group. Micro-CT and Histological analysis evaluation display that group SSe, compared with Con group and Se group, presents the strongest effect on bone regeneration, bone mineralization and higher expression of SIRT1 and SOD2. RT-qPCR analysis indicates that SSe group manifests increased SIRT1, SOD1, SOD2 and CAT than the Con group and Se group (p < 0.05). Our current study demonstrates that systemic administration with SIL plus local treatment with Se is a scheme for rapid repair of femoral condylar defects, and these effects may be achieved via reducing the oxidative stress pathway.
Collapse
Affiliation(s)
- Zhoushan Tao
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China.
| | - Tian-Lin Li
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Min Yang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Hong-Guang Xu
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| |
Collapse
|
10
|
Wang Z, Wei S. Local treatment with Sema3a could promote the osseointegration of hydroxyapatite coated titanium rod in diabetic rats. J Biomater Appl 2022; 36:1775-1785. [PMID: 35225049 DOI: 10.1177/08853282221075707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Recently, semaphorin 3A (Sema3A) has been identified as a critical gene for osteogenic differentiation of mesenchymal stem cells and increases osteoblastic bone formation. However, in current research studies, there is a lack of focus on whether Sema3a can affect the osseointegration of titanium rods in diabetes and through what biological mechanisms. Therefore, the present work was aimed to evaluate the effect of local administration with Sema3A on hydroxyapatite coated titanium rod osseointegration in diabetic rat model and preliminary exploration of possible mechanisms. The MC3T3-E1 cells were co-cultured with Sema3A and high glucose and induced to osteogenesis, and the cell viability, osteogenic activity was observed by Cell Counting Kit-8(CCK-8), Alkaline Phosphatase staining, Alizarin Red Staining, and Western Blot. In vitro experiments, CCK-8, ALP, and ARS staining results show that the mineralization and osteogenic activity of MC3T3-E1increased significantly after intervention by Sema3A, as well as a higher levels of protein expressions including Runt-Related Transcription Factor 2, silent mating type information regulation 2 homolog-1(SIRT1), catalase (CAT), superoxide dismutase 1 (SOD1), and superoxide dismutase 2 (SOD2). In vivo experiment, a better stability and osseointegration of the titanium rod were observed after treatment with Sema3A, as well as a higher SOD1, SOD2, CAT, and SIRT1 gene expression. The present study indicates that local treatment with Sema3A was associated with increased osseointegration of titanium rod by reducing the oxidative stress of osteoblasts and enhancing the function of osteoblasts in a diabetic rat.
Collapse
Affiliation(s)
- Zhengyu Wang
- Department of Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, People's Republic of China
| | - Shan Wei
- School of Mechanical Engineering, Anhui Polytechnic University, Wuhu, 241000, P.R. China
- Additive Manufacturing Institute of Anhui Polytechnic University, Anhui Polytechnic University, Wuhu, 241000, P.R. China
| |
Collapse
|
11
|
Effects on bone regeneration of single-dose treatment with osteogenic small molecules. Drug Discov Today 2022; 27:1538-1544. [DOI: 10.1016/j.drudis.2022.02.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/08/2022] [Accepted: 02/22/2022] [Indexed: 12/23/2022]
|
12
|
Li F, Cao Z, Li K, Huang K, Yang C, Li Y, Zheng C, Ye Y, Zhou T, Peng H, Liu J, Wang C, Xie K, Tang Y, Wang L. Cryogenic 3D Printing of ß-TCP/PLGA Composite Scaffolds Incorporated With BpV (Pic) for Treating Early Avascular Necrosis of Femoral Head. Front Bioeng Biotechnol 2022; 9:748151. [PMID: 35118053 PMCID: PMC8804314 DOI: 10.3389/fbioe.2021.748151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 12/06/2021] [Indexed: 01/26/2023] Open
Abstract
Avascular necrosis of femoral head (ANFH) is a disease that is characterized by structural changes and collapse of the femoral head. The exact causes of ANFH are not yet clear, but small advances in etiopathogenesis, diagnosis and treatment are achieved. In this study, ß-tricalcium phosphate/poly lactic-co-glycolic acid composite scaffolds incorporated with bisperoxovanadium [bpV (pic)] (bPTCP) was fabricated through cryogenic 3D printing and were utilized to treat rat models with early ANFH, which were constructed by alcohol gavage for 6 months. The physical properties of bPTCP scaffolds and in vitro bpV (pic) release from the scaffolds were assessed. It was found that the sustained release of bpV (pic) promoted osteogenic differentiation and inhibited adipose differentiation of bone marrow-derived mesenchymal stem cells. Micro-computed tomography scanning and histological analysis confirmed that the progression of ANFH in rats was notably alleviated in bPTCP scaffolds. Moreover, it was noted that the bPTCP scaffolds inhibited phosphatase and tensin homolog and activated the mechanistic target of rapamycin signaling. The autophagy induced by bPTCP scaffolds could partially prevent apoptosis, promote osteogenesis and angiogenesis, and hence eventually prevent the progression of ANFH, suggesting that the bPTCP scaffold are promising candidate to treat ANFH.
Collapse
Affiliation(s)
- Feng Li
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
| | - Zhifu Cao
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
| | - Kai Li
- The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Ke Huang
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Chengliang Yang
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Ye Li
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
| | - Chuanchuan Zheng
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
| | - Yulu Ye
- Youjiang Medical University for Nationalities, Baise, China
| | - Tingjie Zhou
- Youjiang Medical University for Nationalities, Baise, China
| | - Haoqiang Peng
- Youjiang Medical University for Nationalities, Baise, China
| | - Jia Liu
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
- Guangxi Key Laboratory of basic and translational research of Bone and Joint Degenerative Diseases, Baise, China
- Guangxi Biomedical Materials Engineering Research Center for Bone and Joint Degenerative Diseases, Baise, China
- *Correspondence: Jia Liu, ; Chong Wang, ; Yujin Tang,
| | - Chong Wang
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, China
- *Correspondence: Jia Liu, ; Chong Wang, ; Yujin Tang,
| | - Kegong Xie
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yujin Tang
- Department of Orthopaedics, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
- Youjiang Medical University for Nationalities, Baise, China
- Guangxi Key Laboratory of basic and translational research of Bone and Joint Degenerative Diseases, Baise, China
- Guangxi Biomedical Materials Engineering Research Center for Bone and Joint Degenerative Diseases, Baise, China
- *Correspondence: Jia Liu, ; Chong Wang, ; Yujin Tang,
| | - Liqiang Wang
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
13
|
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.
Collapse
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.
| |
Collapse
|
14
|
Li TL, Tao ZS, Wu XJ, Yang M, Xu HG. Selenium-modified calcium phosphate cement can accelerate bone regeneration of osteoporotic bone defect. J Bone Miner Metab 2021; 39:934-943. [PMID: 34189659 DOI: 10.1007/s00774-021-01240-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/28/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The purpose is to observe whether local administration with selenium (Se) can enhance the efficacy of calcium phosphate cement (CPC) in the treatment of osteoporotic bone defects. METHODS Thirty ovariectomized (OVX) rats with two defects were generated and randomly allocated into the following graft study groups: (1) OVX group (n = 10), (2) CPC group (n = 10); and (3) Se-CPC group (n = 10). Then, these selenium-modified calcium phosphate cement (Se-CPC) scaffolds were implanted into the femoral epiphysis bone defect model of OVX rats for 12 weeks. Micro-CT, history, western blot and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis were used to observe the therapeutic effect and to explore the possible mechanism. RESULT Micro-CT and histological analysis evaluation showed that the Se-CPC group presented the strongest effect on bone regeneration and bone mineralization when compared with the CPC group and the OVX group. Protein expressions showed that the oxidative stress protein expressions, such as SOD2 and GPX1 of the Se-CPC group, are significantly higher than those of the OVX group and the CPC group, while Se-CPC remarkably reduced the expression of CAT. RT-qPCR analysis showed that the Se-CPC group displayed more OPG than the OVX and CPC groups (p < 0.05), while Se-CPC exhibited less RANKL than the OVX and CPC groups (p < 0.05). CONCLUSION Our current study demonstrated that Se-CPC is a scheme for rapid repair of femoral condylar defects, and these effects may be achieved by inhibiting local oxidative stress and through OPG/RANKL signaling pathway.
Collapse
Affiliation(s)
- Tian-Lin Li
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China.
| | - Xing-Jing Wu
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Hong-Guang Xu
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| |
Collapse
|
15
|
Wang B, Gong S, Shao W, Han L, Li Z, Zhang Z, Zheng Y, Ouyang F, Ma Y, Xu W, Feng Y. Comprehensive analysis of pivotal biomarkers, immune cell infiltration and therapeutic drugs for steroid-induced osteonecrosis of the femoral head. Bioengineered 2021; 12:5971-5984. [PMID: 34488536 PMCID: PMC8815624 DOI: 10.1080/21655979.2021.1972081] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Steroid-induced osteonecrosis of the femoral head (SONFH) is a progressive disease that leads to an increased disability rate. This study aimed to ascertain biomarkers, infiltrating immune cells, and therapeutic drugs for SONFH. The gene expression profile of the GSE123568 dataset was downloaded from the Gene Expression Omnibus (GEO) database. The differentially expressed genes (DEGs) were identified using the NetworkAnalyst platform. Functional enrichment, protein-protein interaction network (PPI), and module analyses were performed using Metascape tools. An immune cell abundance identifier was used to explore immune cell infiltration. Furthermore, hub genes were identified based on maximal clique centrality (MCC) evaluation using cytoHubba application and confirmed by qRT-PCR using clinical samples. Finally, the L1000 platform was used to determine potential drugs for SONFH treatment. The SONFH mouse model was used to determine the therapeutic effects of aspirin. In total, 429 DEGs were identified in SONFH samples. Functional enrichment analysis showed that these DEGs were enriched in myeloid leukocyte activation and osteoclast differentiation processes. A set of nine immune cell types was confirmed to be markedly different between the SONFH and control samples. All 10 hub genes were significantly highly expressed in the serum of SONFH patients, as shown by qRT-PCR. Finally, the therapeutic effect of aspirin on SONFH was examined in animal experiments. Taken together, our data revealed the hub genes and infiltrating immune cells in SONFH, and we also screened potential drugs for use in SONFH treatment.
Collapse
Affiliation(s)
- Bo Wang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Song Gong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Wenkai Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Lizhi Han
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Zilin Li
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Zhichao Zhang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Yang Zheng
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Fang Ouyang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Yan Ma
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Weihua Xu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| | - Yong Feng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan China
| |
Collapse
|
16
|
Tao ZS, Li TL, Wu XJ, Yang M. Local administration with tauroursodeoxycholic acid could improve osseointegration of hydroxyapatite-coated titanium implants in ovariectomized rats. J Biomater Appl 2021; 36:552-561. [PMID: 34162236 DOI: 10.1177/08853282211027678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Despite advances in the pathogenesis of Tauroursodeoxycholic acid (TUDCA) on bone, the understanding of the effects and mechanisms of bone osseointegration in TUDCA-associated Hydroxyapatite (HA)-coated titanium implants remains poor. Therefore, the present work was aimed to evaluate the effect of local administration with TUDCA on HA-coated titanium implants osseointegration in ovariectomized(OVX) rats and further investigation of the possible mechanism. Twelve weeks after bilateral ovariectomy, all animals were randomly divided into three groups: sham operation(Sham) group, OVX group and TUDCA group, and all the rats from Sham group and OVX group received HA implants and animals belonging to group TUDCA received TUDCA-HA implants until death at 12 weeks. The bilateral femurs of rats were harvested for evaluation. TUDCA increased new bone formation around the surface of titanium rods and push-out force other than group OVX. Histology, Micro-CT and biochemical analysis results showed systemic TUDCA showed positive effects than OVX group on bone formation in osteopenic rats, with beneficial effect on via activation OPG/RANKL pathway and BMP-2/Smad1 pathway and microarchitecture as well as by reducing protein expression of TNF-α and IFN-γ. The present study suggests that local use of TUDCA may bring benefits to the osseointegration of HA-coated titanium implants in patients with osteoporosis, and this effect may be related to the inhibition of inflammatory reaction and promotion of osteogenesis.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of 74649Wannan Medical College, Yijishan Hospital, Wuhu, People's Republic of China
| | - Tian-Lin Li
- Department of Trauma Orthopedics, The First Affiliated Hospital of 74649Wannan Medical College, Yijishan Hospital, Wuhu, People's Republic of China
| | - Xing-Jing Wu
- Department of Trauma Orthopedics, The First Affiliated Hospital of 74649Wannan Medical College, Yijishan Hospital, Wuhu, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of 74649Wannan Medical College, Yijishan Hospital, Wuhu, People's Republic of China
| |
Collapse
|
17
|
Tao ZS, Zhou WS, Xu HG, Yang M. Intermittent administration sodium valproate has a protective effect on bone health in ovariectomized rats. Eur J Pharmacol 2021; 906:174268. [PMID: 34166702 DOI: 10.1016/j.ejphar.2021.174268] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 12/09/2022]
Abstract
The present work was aimed to evaluate the effect of different administration modes of sodium valproate (VPA) on bone strength, bone mass and bone mineral density in ovariectomized (OVX) rats and further investigation of the possible mechanism. 60 female SD rats were randomly divided into 4 groups: Sham group (Sham, n = 15), OVX group (OVX, n = 15), OVX rats received intermittent VPA treatment group (IVPA, n = 15) and OVX rats received daily VPA treatment group (EVPA, n = 15). After 12 weeks of treatment, the rats were sacrificed, and serum and femur samples were harvested. DEXA, Micro-CT, history, biomechanical testing, biochemical index and western blot analysis were used to observe the therapeutic effect and explore the possible mechanism. Micro-CT and DEXA analysis of bones revealed better BMD and higher BV/TV, Tb. Th, Tb. N, Conn. D and lower Tb. Sp at femoral metaphysis evaluated in IVPA when compared with OVX and EVPA group (P < 0.05). Histological, fluorescent analysis and biological strength revealed more trabecular bone and higher relative mineral apposition rate, maximal load, elastic modulus and energy at break with evaluated in IVPA when compared with OVX and EVPA group (P < 0.05). The levels of P1NP, estrogen, CTX, TRAP-5b and RANKL of the IVPA group showed a significant increase when compared with the OVX and EVPA group (P < 0.05). We confirm adverse effects on protein expressions including Notch1, Jagged1, HEY1, Wnt 1, β-catenin and RUNX2 following daily VPA treatment in OVX female rats. Our current study demonstrated that intermittent administration of sodium valproate has a protective effect on bone health in OVX rats and these effects may be achieved by activating Notch/Wnt/β-catenin/RUNX2 signal axis.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China.
| | - Wan-Shu Zhou
- Department of Geriatrics, The Second Affiliated Hospital of Wannan Medical College, No.123, Kangfu Road, Wuhu, 241000, Anhui, People's Republic of China
| | - Hong-Guang Xu
- Department of Spinal Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu, 241001, Anhui, People's Republic of China
| |
Collapse
|
18
|
Zhao D, Zhu T, Li J, Cui L, Zhang Z, Zhuang X, Ding J. Poly(lactic- co-glycolic acid)-based composite bone-substitute materials. Bioact Mater 2021; 6:346-360. [PMID: 32954053 PMCID: PMC7475521 DOI: 10.1016/j.bioactmat.2020.08.016] [Citation(s) in RCA: 183] [Impact Index Per Article: 61.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 01/01/2023] Open
Abstract
Research and development of the ideal artificial bone-substitute materials to replace autologous and allogeneic bones for repairing bone defects is still a challenge in clinical orthopedics. Recently, poly(lactic-co-glycolic acid) (PLGA)-based artificial bone-substitute materials are attracting increasing attention as the benefit of their suitable biocompatibility, degradability, mechanical properties, and capabilities to promote bone regeneration. In this article, we comprehensively review the artificial bone-substitute materials made from PLGA or the composites of PLGA and other organic and inorganic substances, elaborate on their applications for bone regeneration with or without bioactive factors, and prospect the challenges and opportunities in clinical bone regeneration.
Collapse
Affiliation(s)
- Duoyi Zhao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, 4 Chongshandong Road, Shenyang, 110032, PR China
| | - Tongtong Zhu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun, 130033, PR China
| | - Jie Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
| | - Liguo Cui
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun, 130022, PR China
| | - Zhiyu Zhang
- Department of Orthopedics, The Fourth Affiliated Hospital of China Medical University, 4 Chongshandong Road, Shenyang, 110032, PR China
| | - Xiuli Zhuang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun, 130022, PR China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, 130022, PR China
- Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun, 130022, PR China
| |
Collapse
|
19
|
Parathyroid hormone (1-34) can reverse the negative effect of valproic acid on the osseointegration of titanium rods in ovariectomized rats. J Orthop Translat 2020; 27:67-76. [PMID: 33437639 PMCID: PMC7777001 DOI: 10.1016/j.jot.2020.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/06/2020] [Accepted: 10/19/2020] [Indexed: 01/21/2023] Open
Abstract
Objective The present work was aimed to evaluate the effect of valproic acid (VPA),Parathyroid hormone (1–34) (PTH)+VPA on Ti rods osseointegration in ovariectomized rats and further investigation of the possible mechanism. Methods The MC3T3-E1 cells were co-cultured with VPA,PTH + VPA and induced to osteogenesis, and the cell viability,mineralization ability were observed by MTT and ALP staining,Alizarin Red staining and Western blotting. Twelve weeks after bilateral ovariectomy, all animals were randomly divided into four groups: group OVX and VPA,PTH + VPA, and all the rats received Ti implants and animals belong to group VPA,PTH + VPA received valproic acid (300 mg/day), valproic acid (300 mg/day) plus Parathyroid hormone (1–34) every 3 days (60 μg/kg), respectively, treatment until death at 12 weeks. Micro-CT, histology, biomechanical testing, bone metabolism index and Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis were used to observe the therapeutic effect and explore the possible mechanism. Results Results shown that VPA decreased new bone formation around the surface of titanium rods and push-out force other than group OVX. Histology, Micro-CT and biochemical analysis results showed combined application of systemic VPA showed harmful effects than OVX group on bone formation in osteopenia rats, with the worse effects on CTX-1, P1NP and microarchitecture as well as biomechanical parameters by down-regulated gene expression of Runx2, OCN, Smad1, BMP-2 and OPG, while up-regulated RANKL. However, after PTH treatment, the above indicators were significantly improved. Conclusions The present study suggests that systemic use of VPA may bring harm to the stability of titanium implants in osteoporosis, PTH can reverse the negative effect of VPA on the osseointegration of titanium rods in ovariectomized rats. Translational potential of this article According to our research, when patients with epilepsy have osteoporotic fractures, after joint replacement or internal fixation, continue to use sodium valproate for anti-epileptic therapy, the possibility of postoperative loosening increases, again on the basis of It can be reversed with the anti-osteoporosis drug parathyroid hormone (1-34).
Collapse
|
20
|
Preparation and characterization of aspirin-loaded polylactic acid/graphene oxide biomimetic nanofibrous scaffolds. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
21
|
Tao ZS, Zhou WS, Xu HG, Yang M. Aspirin modified strontium-doped β-tricalcium phosphate can accelerate the healing of femoral metaphyseal defects in ovariectomized rats. Biomed Pharmacother 2020; 132:110911. [PMID: 33125972 DOI: 10.1016/j.biopha.2020.110911] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/14/2020] [Accepted: 10/17/2020] [Indexed: 12/16/2022] Open
Abstract
The purpose was to observe whether local administration Strontium (Sr) and Aspirin (Asp) can enhance the efficacy of β-Tricalcium phosphate(β-TCP) in the treatment of osteoporotic bone defect. The MC3T3-E1 cells were co-cultured with β-TCP, Sr/β-TCP, Asp-Sr/β-TCP scaffold and induced to osteogenesis, and the cell viability, mineralization ability were observed by MTT, Alizarin Red staining(ARS) and Western blotting(WB). Then this scaffolds were implanted into the femoral epiphysis bone defect model of ovariectomized(OVX) rats for 8 weeks. X-ray, Micro-CT, histology and Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis were used to observe the therapeutic effect and explore the possible mechanism. MTT, ARS results show that the cell mineralization and viability of Asp-Sr/β-TCP group is significantly higher than Control group, β-TCP group and Sr/β-TCP group. Protein expression show that the osteogenic protein expression such as ALP、OP、RUNX-2、OC and COL-1 of Asp-Sr/β-TCP group is significantly higher than Control group, β-TCP group and Sr/β-TCP group. X-ray images, Micro-CT and Histological analysis evaluation show that, group Asp-Sr/β-TCP presented the strongest effect on bone regeneration and bone mineralization, when compared with β-TCP group and Sr/β-TCP group. RT-qPCR analysis show that Asp-Sr/β-TCP, β-TCP group and Sr/β-TCP group showed increased BMP2, Smad1, OPG than the OVX group(p < 0.05), while Asp-Sr/β-TCP exhibited decreased TNF-α、IFN-γ and RANKL than the OVX group(p < 0.05). Our current study demonstrated that Asp-Sr/ β-TCP is a scheme for rapid repair of femoral condylar defects, and these effects may be achieved by inhibiting local inflammation and through BMP-2/Smad1 and OPG/RANKL signaling pathway.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001 Anhui, People's Republic of China
| | - Wan-Shu Zhou
- Department of Geriatrics, the Second Affiliated Hospital of Wannan Medical College, No.123, Kangfu Road, Wuhu, 241000 Anhui, People's Republic of China.
| | - Hong-Guang Xu
- Department of Spinal orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001 Anhui, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, Wuhu, 241001 Anhui, People's Republic of China
| |
Collapse
|
22
|
Tao ZS, Zhou WS, Xu HG, Yang M. Simvastatin can enhance the osseointegration of titanium rods in ovariectomized rats maintenance treatment with valproic acid. Biomed Pharmacother 2020; 132:110745. [PMID: 33068938 DOI: 10.1016/j.biopha.2020.110745] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 12/18/2022] Open
Abstract
The present work was aimed to evaluate the effect of valproic acid(VPA), simvastatin (SIM)+VPA on Ti(titanium) rods osseointegration in ovariectomized(OVX) rats and further investigation of the possible mechanism. The MC3T3-E1 cells were co-cultured with VPA, SIM + VPA and induced to osteogenesis, and the cell viability, mineralization ability were observed by MTT and ALP staining, Alizarin Red staining and Western blotting. Twelve weeks after bilateral ovariectomy, all animals were randomly divided into three groups: group OVX and VPA, SIM + VPA, and all the rats received Ti implants and animals belong to group VPA, SIM + VPA received valproic acid(300 mg/kg/day), valproic acid(300 mg/kg/day) plus SIM (25 mg/kg/day), respectively, treatment until death at 12 weeks. Micro-CT, histology, biomechanical testing, bone metabolism index and Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis were used to observe the therapeutic effect and explore the possible mechanism. Results shown that VPA decreased new bone formation around the surface of titanium rods and push-out force other than group OVX. Histology, Micro-CT and biochemical analysis results showed combined application of systemic VPA showed harmful effects than OVX group on bone formation in osteopenic rats, with the worse effects on CTX-1, P1NP and microarchitecture as well as biomechanical parameters by down-regulated gene expression of Runx2, OCN, Smad1, BMP-2 and OPG, while up-regulated RANKL. However, after SIM treatment, the above indicators were significantly improved. The present study suggests that systemic use of VPA may bring harm to the stability of titanium implants in osteoporosis, SIM can reverse the negative effect of VPA on the osseointegration of titanium rods in ovariectomized rats.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, People's Republic of China
| | - Wan-Shu Zhou
- Department of Geriatrics, the Second Affiliated Hospital of Wannan Medical College, No.123, Kangfu Road, Wuhu 241000, Anhui, People's Republic of China
| | - Hong-Guang Xu
- Department of Spinal Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, People's Republic of China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe Shan Xi Road, Wuhu 241001, Anhui, People's Republic of China.
| |
Collapse
|
23
|
Tao ZS, Lu HL, Ma NF, Zhang RT, Li Y, Yang M, Xu HG. Rapamycin could increase the effects of melatonin against age-dependent bone loss. Z Gerontol Geriatr 2019; 53:671-678. [PMID: 31781847 DOI: 10.1007/s00391-019-01659-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 11/05/2019] [Indexed: 12/18/2022]
Abstract
Previous studies have demonstrated the beneficial effect of melatonin (MEL) on bone tissue and bone metabolism. Rapamycin (RAP) promotes osteoblast proliferation and inhibits osteoclast proliferation, and positively affects bone regeneration; however, reports about effects of RAP on bone loss for aged female rats with MEL administration are limited. This study investigated the impact of treatment with RAP on bone loss for aged female rats with MEL administration. Female Sprague-Dawley rats weighing approximately 520 g were randomly divided into 3 groups of 10: group CON, group MEL and group MEL + RAP and received saline, MEL, RAP plus MEL treatment until death at 12 weeks, respectively. The results of maintaining bone mass and bone strength with RAP plus MEL administration were evaluated by histology, microcomputerized tomography (Micro-CT), gene expression analysis and biomechanical testing. Results from this study indicated that MEL + RAP had stronger effects on the prevention and treatment of osteoporosis than MEL administration. Administration of MEL + RAP produced the strongest effects on bone parameters and strength for distal femurs and regulation of OPG/RANKL signalling pathway-related gene expression. These results seemed to indicate that RAP could increase the effects of MEL on age-dependent bone loss.
Collapse
Affiliation(s)
- Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China
| | - Han-Li Lu
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China
| | - Neng-Feng Ma
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China
| | - Rou-Tian Zhang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China
| | - Yang Li
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China.
| | - Hong-Guang Xu
- Spine Research Center of Wannan Medical College; Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution; Dept of Spine Surgery, Yijishan hospital of Wannan Medical College, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China.
| |
Collapse
|
24
|
Tao Z, Zhou W, Wu X, Lu H, Ma N, Li Y, Zhang R, Yang M, Xu HG. Local administration of aspirin improves osseointegration of hydroxyapatite-coated titanium implants in ovariectomized rats through activation of the Notch signaling pathway. J Biomater Appl 2019; 34:1009-1018. [PMID: 31757183 DOI: 10.1177/0885328219889630] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Zhoushan Tao
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Wanshu Zhou
- Department of Geriatrics, The Second Affiliated Hospital of Wannan Medical College, Anhui, People's Republic of China
| | - Xingjing Wu
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Hanli Lu
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Nengfeng Ma
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Yang Li
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Ruotian Zhang
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Min Yang
- Department of Trauma orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Anhui, People's Republic of China
| | - Hong-Guang Xu
- Department of Spine Surgery, Spine Research Center of Wannan Medical College, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Yijishan hospital of Wannan Medical College, Anhui, People's Republic of China
| |
Collapse
|
25
|
Sun T, Li J, Xing HL, Tao ZS, Yang M. Melatonin improves the osseointegration of hydroxyapatite-coated titanium implants in senile female rats. Z Gerontol Geriatr 2019; 53:770-777. [PMID: 31654128 DOI: 10.1007/s00391-019-01640-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 10/07/2019] [Indexed: 02/03/2023]
Abstract
The aim of this study was to confirm the effect of the systemic administration of melatonin on hydroxyapatite-coated titanium (HA-Ti) implants in senile osteopenic rats. For this study 24-month-old female Sprague-Dawley rats were used. The animals were randomly divided into two groups: a control group and a melatonin group and the bilateral femurs of all the rats received HA-Ti implants. Animals in the melatonin group received treatment with melatonin (30 mg/kg day). After a 12-week healing period, rats in the melatonin group revealed improved osseointegration compared to the control group, with the bone area ratio (BAR) and bone to implant contact (BIC) increased by 1.87-fold and 1.65-fold in histomorphometry, the quantitative results of implant osseointegration and peri-implant trabeculae, such as a higher bone volume per total volume (BV/TV), trabecular number (Tb.N), the mean connective density (Conn.D), trabecular thickness (Tb.Th), and a lower trabecular spacing (Tb.Sp) in micro-computed tomography (CT) evaluation and the maximum push-out force by 1.75-fold in push out tests. Additionally, compared with the control group, melatonin could significantly up-regulate the expression of the runt-related transcription factor 2 (Runx2), osteocalcin (OC) and osteoprotegerin (OPG) genes and down-regulate the expression of the RANKL gene. These findings suggest that systemic administration with melatonin is useful to improve the fixation of HA-coated implants even in osteopenic rats through promoting Runx2, OC and OPG gene expression and inhibiting RANKL gene expression.
Collapse
Affiliation(s)
- Tao Sun
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Liandu District, Lishui City, Zhejiang, China
| | - Jian Li
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Liandu District, Lishui City, Zhejiang, China
| | - Hai-Lin Xing
- Department of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Liandu District, Lishui City, Zhejiang, China
| | - Zhou-Shan Tao
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China.
| | - Min Yang
- Department of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China
| |
Collapse
|
26
|
Resveratrol reverses the negative effect of alcohol on hydroxyapatite-coated implant osseointegration in senile female rats. Z Gerontol Geriatr 2019; 53:538-545. [PMID: 31435788 DOI: 10.1007/s00391-019-01595-3] [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: 03/03/2019] [Accepted: 07/23/2019] [Indexed: 10/26/2022]
Abstract
Previous studies have demonstrated the damaging effect of alcohol (ALH) consumption on bone tissue and bone metabolism. Resveratrol (RES) promotes osteoblast proliferation and inhibits osteoclast proliferation and positively affects bone regeneration; however, reports about effects of RES on osseointegration in aged female rats with ALH consumption are limited. This study was designed to investigate the impact of treatment with RES on osseointegration for aged female rats with ALH consumption. This study included 30 female Sprague-Dawley rats (22 months old), weighing approximately 520 g. All animals were randomly divided into 3 groups of 10: a control group (CON) receiving saline, a group receiving ALH and a group receiving ALH + RES until death after 12 weeks. The results of enhanced osseointegration in senile female rats with RES consumption were evaluated by histology, microcomputerized tomography (micro-CT), gene expression analysis and a biomechanical test. The results of this study indicated that ALH + RES showed stronger effects on the improvement of osseointegration in senile female rats with ALH consumption. The ALH + RES produced stronger effects on bone volume per total volume (BV/TV), mean trabecular thickness (Tb.Th), mean trabecular number (Tb.N) and mean trabecular separation (Tb.Sp), connective tissue density (Conn.D) and maximum push-out force for implants, and regulation of osteogenesis and bone resorption-related gene expression. These results seem to indicate that RES intervention reverses the negative effect of alcohol on hydroxyapatite-coated implant osseointegration in senile female rats with ALH consumption.
Collapse
|