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Ge W, Luo S, Zhang K, Liu L, Zhou Z, Liu Y. Role of histone deacetylase 9 in human periodontal ligament stem cells autophagy in a tumour necrosis factor α-induced inflammatory environment. Tissue Cell 2023; 82:102113. [PMID: 37262978 DOI: 10.1016/j.tice.2023.102113] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 04/08/2023] [Accepted: 05/15/2023] [Indexed: 06/03/2023]
Abstract
Histone deacetylases (HDACs) play important roles in the post-translational modification of histones, which can affect the biological properties of cells, thereby altering disease progression and outcomes. However, it remains unclear how HDAC9, a class II HDAC, affects the autophagy of human periodontal ligament stem cells (hPDLSCs). We aimed to identify its role in autophagy in hPDLSCs in an inflammatory environment and to explore the potential regulatory mechanisms. A rat periodontitis model was induced by ligating the molars with silk thread. Expression of autophagy-related genes and TNF-α was elevated in this model. TNF-α was used to stimulate hPDLSCs to establish an inflammatory environment. In the TNF-α-stimulated hPDLSCs, the expression of ATG7, ATG12, Beclin-1, LC3 and HDAC9 was upregulated, and that of p62 was downregulated. When HDAC9 expression was inhibited, autophagy-related genes expression was downregulated, and p62 expression was upregulated in TNF-α-treated hPDLSCs, indicating that autophagy was inhibited under these conditions. ERK pathway inhibition significantly reduced HDAC9-mediated autophagy in TNF-α-treated hPDLSCs. These findings reveal that autophagy occurred in our rat periodontitis model and that HDAC9 regulated autophagy via ERK pathways in hPDLSCs in the inflammatory environment. HDAC9 is therefore a potential target for the treatment of periodontitis.
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Affiliation(s)
- Wenbin Ge
- Department of Orthodontics, School and Hospital of Stomatology, Kunming Medical University, Kunming, Yunnan Province 650106, China; Yunnan Key Laboratory of Stomatology, Kunming 650106, China
| | - Shitong Luo
- Department of Orthodontics, School and Hospital of Stomatology, Kunming Medical University, Kunming, Yunnan Province 650106, China; Yunnan Key Laboratory of Stomatology, Kunming 650106, China
| | - Kun Zhang
- Department of Orthodontics, School and Hospital of Stomatology, Kunming Medical University, Kunming, Yunnan Province 650106, China; Yunnan Key Laboratory of Stomatology, Kunming 650106, China
| | - Lizhiyi Liu
- Department of Orthodontics, School and Hospital of Stomatology, Kunming Medical University, Kunming, Yunnan Province 650106, China; Yunnan Key Laboratory of Stomatology, Kunming 650106, China
| | - Zhi Zhou
- Department of Orthodontics, the Affiliated Hospital of Yunnan University, Kunming, Yunnan Province 650021, China.
| | - Yali Liu
- Department of Orthodontics, School and Hospital of Stomatology, Kunming Medical University, Kunming, Yunnan Province 650106, China; Yunnan Key Laboratory of Stomatology, Kunming 650106, China.
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Zhou Y, Nishiura A, Morikuni H, Deng W, Tsujibayashi T, Momota Y, Azetsu Y, Takami M, Honda Y, Matsumoto N. RANKL + senescent cells under mechanical stress: a therapeutic target for orthodontic root resorption using senolytics. Int J Oral Sci 2023; 15:20. [PMID: 37253719 DOI: 10.1038/s41368-023-00228-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 04/29/2023] [Accepted: 05/04/2023] [Indexed: 06/01/2023] Open
Abstract
In dentistry, orthodontic root resorption is a long-lasting issue with no effective treatment strategy, and its mechanisms, especially those related to senescent cells, remain largely unknown. Here, we used an orthodontic intrusion tooth movement model with an L-loop in rats to demonstrate that mechanical stress-induced senescent cells aggravate apical root resorption, which was prevented by administering senolytics (a dasatinib and quercetin cocktail). Our results indicated that cementoblasts and periodontal ligament cells underwent cellular senescence (p21+ or p16+) and strongly expressed receptor activator of nuclear factor-kappa B (RANKL) from day three, subsequently inducing tartrate-resistant acid phosphatase (TRAP)-positive odontoclasts and provoking apical root resorption. More p21+ senescent cells expressed RANKL than p16+ senescent cells. We observed only minor changes in the number of RANKL+ non-senescent cells, whereas RANKL+ senescent cells markedly increased from day seven. Intriguingly, we also found cathepsin K+p21+p16+ cells in the root resorption fossa, suggesting senescent odontoclasts. Oral administration of dasatinib and quercetin markedly reduced these senescent cells and TRAP+ cells, eventually alleviating root resorption. Altogether, these results unveil those aberrant stimuli in orthodontic intrusive tooth movement induced RANKL+ early senescent cells, which have a pivotal role in odontoclastogenesis and subsequent root resorption. These findings offer a new therapeutic target to prevent root resorption during orthodontic tooth movement.
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Affiliation(s)
- Yue Zhou
- Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan
| | - Aki Nishiura
- Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan.
| | - Hidetoshi Morikuni
- Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan
| | - Wenqi Deng
- Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan
| | - Toru Tsujibayashi
- Department of Physics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan
| | - Yoshihiro Momota
- Department of Anesthesiology, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan
| | - Yuki Azetsu
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawaku, Tokyo, Japan
| | - Masamichi Takami
- Department of Pharmacology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawaku, Tokyo, Japan
| | - Yoshitomo Honda
- Department of Oral Anatomy, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan.
| | - Naoyuki Matsumoto
- Department of Orthodontics, Osaka Dental University, 8-1 Kuzuhahanazonocho, Hirakata, Osaka, Japan
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Zhao Z, Behm C, Tian Z, Rausch MA, Rausch-Fan X, Andrukhov O. Cyclic tensile strain-induced yes-associated protein activity modulates the response of human periodontal ligament mesenchymal stromal cells to tumor necrosis factor-α. Arch Oral Biol 2022; 143:105527. [DOI: 10.1016/j.archoralbio.2022.105527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/02/2022]
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Yao W, Gong Y, Zhao B, Li R. Combined effects of cyclic stretch and TNF-α on the osteogenic differentiation in MC3T3-E1 cells. Arch Oral Biol 2021; 130:105222. [PMID: 34358809 DOI: 10.1016/j.archoralbio.2021.105222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/16/2021] [Accepted: 07/29/2021] [Indexed: 01/19/2023]
Abstract
OBJECTIVE The study aimed to investigate the combined effects of cyclic stretch and tumor necrosis factor-alpha (TNF-α) on the osteogenic differentiation of MC3T3-E1 cells and the role of the nuclear factor-kappaB (NF-κB) signaling pathway in this process. DESIGN MC3T3-E1 cells were treated with TNF-α (0.5 and 10 ng/mL) and cyclically stretched using the Flexcell tension system 4000 with 12 % elongation for 12 h. Furthermore, to explore which cytokines might be regulated by the NF-κB signaling pathway in osteogenic differentiation, the cells were pre-treated with NF-κB inhibitor, pyrrolidine dithiocarbamate (PDTC), and then cyclically stretched for 12 h in the presence of 10 ng/mL of TNF-α. RT-PCR and western blot were utilized to detect the expression of type Ⅰ collagen (COL1), osteocalcin (OCN), runt-related transcription factor 2 (Runx2), alkaline phosphatase (ALP), osteoprotegerin (OPG), receptor activator of NF-κB ligand (RANKL), NF-κB, and phosphorylated NF-κB (p-NF-κB) at gene and protein levels. RESULTS Cyclic stretch alone increased the expression of COL1, OCN, Runx2, ALP, and OPG, decreasing the expression of RANKL and the RANKL/OPG ratio. The upregulation or downregulation induced by cyclic stretch were restrained in the presence of TNF-α. The p-NF-κB/NF-κB ratio increased at any stimulation. Inhibition of NF-κB signaling pathway restrained the expression variations of COL1, OCN, ALP, OPG, and RANKL induced by TNF-α combined with cyclic stretch. CONCLUSION The results indicated that TNF-α inhibited the osteogenic differentiation of MC3T3-E1 cells induced by cyclic stretch and NF-κB signaling pathway might play a role in this process.
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Affiliation(s)
- Wei Yao
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, China.
| | - Yuqing Gong
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, China
| | - Bin Zhao
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, China
| | - Ran Li
- Shanxi Medical University School and Hospital of Stomatology, Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan 030001, China
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Qi Y, Wang H, Chen X, Zhu Y. The role of TGF-β1/Smad3 signaling pathway and oxidative stress in the inhibition of osteoblast mineralization by copper chloride. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 84:103613. [PMID: 33571669 DOI: 10.1016/j.etap.2021.103613] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 06/12/2023]
Abstract
To explore the relationship of oxidative stress and TGF-β 1/Smad3 pathway in the inhibition of osteoblast mineralization by copper chloride (CuCl2), the osteoblasts were treated with CuCl2 (0, 50 μM, 100 μM, 150 μM CuCl2 5H2O) for 24 h. We found that Cu impaired the osteoblast structure, inhibited the glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities, alkaline phosphatase (ALP) content, mRNA expression of collagen I (COL-I), osteocalcin (OCN), insulin-like growth factor I (IGF-I), bone morphogenetic protein-2 (BMP-2), transforming growth factor β1 (TGF-β1) and core-binding factor α1 (Cbfα1), promoted the reactive oxygen species (ROS) production, inactivated the TGF-β1/Smad3 pathway. It indicates that the inactivated TGF-β1/Smad3 pathway leads to osteoblast impairment by CuCl2. It will contribute to clarify the influence of CuCl2 on the osteoblast mineralization.
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Affiliation(s)
- Yanping Qi
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China; Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, 233100, China
| | - Honghai Wang
- Animal Health Quarantine Station of Daqing Agricultural and Rural Bureau, Daqing, 163000, China
| | - Xuelong Chen
- College of Animal Science, Anhui Science and Technology University, Fengyang, 233100, China; Anhui Province Key Laboratory of Animal Nutritional Regulation and Health, Anhui Science and Technology University, Fengyang, 233100, China.
| | - Yanzhu Zhu
- Key Laboratory of Special Animal Epidemic Disease, Ministry of Agriculture, Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural University, Changchun, 130112, China.
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Hu Y, Wang C, Ha S, Zhu N, Cao Z, Song Y. Peroxisome proliferator activated receptor γ promotes mineralization and differentiation in cementoblasts via inhibiting Wnt/β-catenin signaling pathway. J Cell Biochem 2020; 121:3700-3710. [PMID: 31709625 DOI: 10.1002/jcb.29509] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/10/2019] [Indexed: 01/24/2023]
Abstract
Peroxisome proliferator activated receptor γ (PPARγ) is a member of the nuclear receptor family of transcription factors, which involved in inflammation regulating and bone remodeling. Rare studies explored the effects of PPARγ on mineralization and differentiation in cementoblasts. To explore the potential approaches to repair the damaged periodontal tissues especially for cementum, the present study aims to investigate the effects and the regulating mechanism of PPARγ on mineralization and differentiation in cementoblasts. Murine cementoblast cell lines (OCCM-30) were cultured in basic medium for 24 hours/48 hours or in mineralization medium for 3/7/10 days, respectively at addition of dimethyl sulphoxide, rosiglitazone (PPARγ agonist), GW9662 (PPARγ antagonist), lithium chloride (LiCl), tumor necrosis factor-α (TNF-α), or respective combination. Expression of mineralization genes alkaline phosphatase (ALP), runt related transcription factors 2 (RUNX2), and osteocalcin (OCN) were detected by quantitative real-time polymerase chain reaction or/and Western blot. ALP staining and alizarin red staining were used to evaluate the mineralization in OCCM-30 cells. The change of β-catenin expression and translocation in cytoplasm/nucleus was analyzed by Western blot and immunofluorescence. The results showed that PPARγ agonist rosiglitazone improved the expression of ALP, RUNX2, and OCN, deepened ALP staining, increased mineralized nodules formation, and decreased β-catenin expression in the nucleus. LiCl, an activator of the Wnt signaling pathway, inhibited the expression of mineralization genes and reversed the upregulated expression of mineralization genes resulted from rosiglitazone. Under inflammatory microenvironment, rosiglitazone not only suppressed the expression of interleukin-1β caused by TNF-α, but improved the expression of mineralization genes in OCCM-30 cells. In conclusion, PPARγ could promote mineralization and differentiation in cementoblasts via inhibiting the Wnt/β-catenin signaling pathway, which would shed new light on the treatment of periodontitis and periodontal tissue regeneration.
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Affiliation(s)
- Yingying Hu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, Hubei, China
| | - Changning Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, Hubei, China
| | - Shanshan Ha
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, Hubei, China
| | - Ningjing Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, Hubei, China
| | - Zhengguo Cao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, Hubei, China
| | - Yaling Song
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory for Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, Hubei, China
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Ge M, Zhou C, Li H, Li Y, Xu Y, Wang X, Zou S. Lithium chloride attenuates suppressed differentiation induced by mechanical strain in cementoblasts. Connect Tissue Res 2019; 60:444-451. [PMID: 30897979 DOI: 10.1080/03008207.2019.1593390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aim: The purpose of this study was to investigate the influence of mechanical strain on OCCM-30 cementoblast differentiation and Wnt/β-catenin pathway activity. Materials and Methods: Mechanical tension in the form of 2500-µ strain was applied to the cells using the Forcel four-point bending system, with or without the Wnt signaling activator, lithium chloride. Changes in cell differentiation and the expression of Wnt/β-catenin pathway components in response to strain and lithium chloride were assessed by real-time PCR, immunofluorescence, and western blotting. Results: The mRNA expression levels of the cementoblastogenesis-related genes alkaline phosphatase, runt-related transcription factor 2, and collagen 1, were decreased with mechanical strain. Similarly, the Wnt signaling pathway component genes LRP5, AXIN2, and LEF1 were decreased. The immunofluorescence assay demonstrated that scant β-catenin underwent nuclear translocation after the cells were subjected to mechanical strain. Moreover, western blotting showed that the protein levels of both β-catenin and phosphorylated β-catenin were increased after mechanical strain. In the presence of lithium chloride, the differentiation that was suppressed by mechanical strain was attenuated. Conclusions: 2500-µ strain mechanical strain inhibited cementoblast differentiation activity in vitro, which could be alleviated by actviating Wnt/β-catenin signaling using lithium chloride.
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Affiliation(s)
- Mengke Ge
- a Department of Orthodontics, Nanjing Stomatological Hospital , Medical School of Nanjing University , Nanjing , China.,b State Key Laboratory of Oral Diseases, Department of Orthodontics , West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Chenchen Zhou
- b State Key Laboratory of Oral Diseases, Department of Orthodontics , West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Huang Li
- a Department of Orthodontics, Nanjing Stomatological Hospital , Medical School of Nanjing University , Nanjing , China
| | - Yuyu Li
- b State Key Laboratory of Oral Diseases, Department of Orthodontics , West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Yang Xu
- b State Key Laboratory of Oral Diseases, Department of Orthodontics , West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Xin Wang
- b State Key Laboratory of Oral Diseases, Department of Orthodontics , West China Hospital of Stomatology, Sichuan University , Chengdu , China
| | - Shujuan Zou
- b State Key Laboratory of Oral Diseases, Department of Orthodontics , West China Hospital of Stomatology, Sichuan University , Chengdu , China
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Li S, Li F, Zou S, Zhang L, Bai Y. PTH1R signalling regulates the mechanotransduction process of cementoblasts under cyclic tensile stress. Eur J Orthod 2019; 40:537-543. [PMID: 29394342 DOI: 10.1093/ejo/cjx099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective To investigate the regulatory role of type I parathyroid hormone receptor (PTH1R) signalling in the mechanotransduction process of cementoblasts under cyclic tensile stress (CTS). Materials and methods Immortalized cementoblast cell line OCCM-30 were employed and subjected to cyclic tensile strain applied by a four-point bending system. The expression of PTHrP and PTH1R, as well as cementoblastic transcription factor Runx-2, Osterix, and extracellular matrix protein COL-1 and OPN were assessed by quantitative real-time polymerase chain reaction and western blot analysis. PTH1R expression was knocked down by siPTH1R transfection, and the alteration of cementoblastic biomarkers expression was examined to evaluate the function of PTH1R. Furthermore, to investigate possible downstream molecules, expression of signal molecule ERK1/2 with or without siPTH1R transfection, and the effect of ERK inhibitor PD98059 on the expression of cementoblastic biomarkers was also examined. Results Cyclic tensile strain elevated the expression of PTHrP and PTH1R, as well as cementoblastic biomarkers Runx-2, Osterix, COL-1, and OPN in a time-dependent manner, which was inhibited by siPTH1R transfection. The expression of phosphorylated ERK1/2 was upregulated time-dependently under cyclic stretch, which was also inhibited by siPTH1R transfection, and pretreatment of p-ERK1/2 inhibitor PD98059 undermined the increase of Runx-2, Osterix, COL-1, and OPN prominently. Conclusion The findings of the present study indicate that PTH1R signalling plays a regulatory role in the CTS induced cementoblastic differentiation in mature cementoblasts, and ERK1/2 is essentially involved as a downstream intracellular signal molecule in this mechanotransduction process.
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Affiliation(s)
- Shengnan Li
- Institute of Dental Research and Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, P.R. China
| | - Fan Li
- Institute of Dental Research and Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, P.R. China
| | - Shujuan Zou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, P.R. China
| | - Li Zhang
- Institute of Dental Research and Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, P.R. China
| | - Yuxing Bai
- Institute of Dental Research and Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, P.R. China
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