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Liu Q, Zhao Y, Shi H, Xiang D, Wu C, Song L, Ma N, Sun H. Long-term haplodeficency of DSPP causes temporomandibular joint osteoarthritis in mice. BMC Oral Health 2024; 24:569. [PMID: 38745274 PMCID: PMC11094853 DOI: 10.1186/s12903-024-04320-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 05/02/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Extracellular matrix (ECM) protein malfunction or defect may lead to temporomandibular joint osteoarthritis (TMJ OA). Dentin sialophophoprotein (DSPP) is a mandibular condylar cartilage ECM protein, and its deletion impacted cell proliferation and other extracellular matrix alterations of postnatal condylar cartilage. However, it remains unclear if long-term loss of function of DSPP leads to TMJ OA. The study aimed to test the hypothesis that long-term haploinsufficiency of DSPP causes TMJ OA. MATERIALS AND METHODS To determine whether Dspp+/- mice exhibit TMJ OA but no severe tooth defects, mandibles of wild-type (WT), Dspp+/-, and Dspp homozygous (Dspp-/-) mice were analyzed by Micro-computed tomography (micro-CT). To characterize the progression and possible mechanisms of osteoarthritic degeneration over time in Dspp+/- mice over time, condyles of Dspp+/- and WT mice were analyzed radiologically, histologically, and immunohistochemically. RESULTS Micro-CT and histomorphometric analyses revealed that Dspp+/- and Dspp-/- mice had significantly lower subchondral bone mass, bone volume fraction, bone mineral density, and trabecular thickness compared to WT mice at 12 months. Interestingly, in contrast to Dspp-/- mice which exhibited tooth loss, Dspp+/- mice had minor tooth defects. RNA sequencing data showed that haplodeficency of DSPP affects the biological process of ossification and osteoclast differentiation. Additionally, histological analysis showed that Dspp+/- mice had condylar cartilage fissures, reduced cartilage thickness, decreased articular cell numbers and severe subchondral bone cavities, and with signs that were exaggerated with age. Radiographic data showed an increase in subchondral osteoporosis up to 18 months and osteophyte formation at 21 months. Moreover, Dspp+/- mice showed increased distribution of osteoclasts in the subchondral bone and increased expression of MMP2, IL-6, FN-1, and TLR4 in the mandibular condylar cartilage. CONCLUSIONS Dspp+/- mice exhibit TMJ OA in a time-dependent manner, with lesions in the mandibular condyle attributed to hypomineralization of subchondral bone and breakdown of the mandibular condylar cartilage, accompanied by upregulation of inflammatory markers.
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Affiliation(s)
- Qilin Liu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Yitong Zhao
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Haibo Shi
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Danwei Xiang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Chunye Wu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Lina Song
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Jilin University, Changchun, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, School and Hospital of Stomatology, Jilin University, Changchun, China
| | - Ning Ma
- Department of Rheumatology, The First Hospital, Jilin University, Changchun, China.
| | - Hongchen Sun
- Department of Oral Pathology, School and Hospital of Stomatology, Jilin University, Changchun, China.
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Chen CP, Zhang J, Zhang B, Hassan MG, Hane K, Chen CC, Navarro Palacios AA, Kapila S, Jheon AH, Goodwin AF. Unilateral loss of maxillary molars in young mice leads to bilateral condylar adaptation and degenerative disease. JBMR Plus 2022; 6:e10638. [PMID: 35866152 PMCID: PMC9289985 DOI: 10.1002/jbm4.10638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/25/2022] [Accepted: 05/03/2022] [Indexed: 11/22/2022] Open
Abstract
The adaptive response of the mandible and temporomandibular joint (TMJ) to altered occlusion in juvenile patients is presently unclear. To address this question, we established a mouse model in which all molars were extracted from the maxillary right quadrant in prepubertal, 3‐week‐old mice and analyzed morphological, tissue, cellular, and molecular changes in the mandible and condyle 3 weeks later. Unilateral loss of maxillary molars led to significant, robust, bilateral changes, primarily in condylar morphology, including anteroposterior narrowing of the condylar head and neck and increased convexity at the condylar surface, as determined by geometric morphometric analysis. Furthermore, both condyles in experimental mice exhibited a degenerative phenotype, which included decreased bone volume and increased mineral density near the condylar head surface compared to control mice. Changes in condylar morphology and mineralized tissue composition were associated with alterations in the cellular architecture of the mandibular condylar cartilage, including increased expression of markers for mature (Col2a1) and hypertrophic (Col10a1) chondrocytes, suggesting a shift toward differentiating chondrocytes. Our results show significant bilateral condylar morphological changes, alterations in tissue composition, cellular organization, and molecular expression, as well as degenerative disease, in response to the unilateral loss of teeth. Our study provides a relatively simple, tractable mouse tooth extraction system that will be of utility in uncovering the cellular and molecular mechanisms of condylar and mandibular adaptation in response to altered occlusion. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Christopher Phillip Chen
- Division of Craniofacial Anomalies, Department of Orofacial Sciences University of California San Francisco (UCSF) CA USA
- Program in Craniofacial Biology, UCSF CA USA
| | - Jiehua Zhang
- Program in Craniofacial Biology, UCSF CA USA
- Department of Stomatology Renmin Hospital of Wuhan University Wuhan Hubei China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration Wuhan China
| | - Bin Zhang
- Program in Craniofacial Biology, UCSF CA USA
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Stomatology Sun Yat‐sen University Guangzhou Guangdong China
| | - Mohamed G. Hassan
- Program in Craniofacial Biology, UCSF CA USA
- Department of Orthodontics, Faculty of Dentistry Assiut University Assiut Egypt
- Division of Bone and Mineral Diseases, Department of Medicine, School of Medicine Washington University in St. Louis MO USA
| | - Kyle Hane
- Program in Craniofacial Biology, UCSF CA USA
| | - Caroline C. Chen
- Division of Craniofacial Anomalies, Department of Orofacial Sciences University of California San Francisco (UCSF) CA USA
- Program in Craniofacial Biology, UCSF CA USA
| | | | - Sunil Kapila
- Division of Orthodontics, Department of Orofacial Sciences UCSF CA USA
| | - Andrew H. Jheon
- Program in Craniofacial Biology, UCSF CA USA
- Division of Orthodontics, Department of Orofacial Sciences UCSF CA USA
| | - Alice F. Goodwin
- Division of Craniofacial Anomalies, Department of Orofacial Sciences University of California San Francisco (UCSF) CA USA
- Program in Craniofacial Biology, UCSF CA USA
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Tossetta G, Fantone S, Licini C, Marzioni D, Mattioli-Belmonte M. The multifaced role of HtrA1 in the development of joint and skeletal disorders. Bone 2022; 157:116350. [PMID: 35131488 DOI: 10.1016/j.bone.2022.116350] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/21/2022] [Accepted: 02/01/2022] [Indexed: 12/15/2022]
Abstract
HtrA1 (High temperature requirement A1) family proteins include four members, widely conserved from prokaryotes to eukaryotes, named HtrA1, HtrA2, HtrA3 and HtrA4. HtrA1 is a serine protease involved in a variety of biological functions regulating many signaling pathways degrading specific components and playing key roles in many human diseases such as neurodegenerative disorders, pregnancy complications and cancer. Due to its role in the breakdown of many ExtraCellular Matrix (ECM) components of articular cartilage such as fibronectin, decorin and aggrecan, HtrA1 encouraged many researches on studying its role in several skeletal diseases (SDs). These studies were further inspired by the fact that HtrA1 is able to regulate the signaling of one of the most important cytokines involved in SDs, the TGFβ-1. This review aims to summarize the data currently available on the role of HtrA1 in skeletal diseases such as Osteoporosis, Rheumatoid Arthritis, Osteoarthritis and Intervertebral Disc Degeneration (IDD). The use of HtrA1 as a marker of frailty in geriatric medicine would represent a powerful tool for identifying older individuals at risk of developing skeletal disorders, evaluating an appropriate intervention to improve quality care in these people avoiding or improving age-related SDs in the elderly population.
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Affiliation(s)
- Giovanni Tossetta
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126 Ancona, Italy; Clinic of Obstetrics and Gynaecology, Department of Clinical Sciences, Università Politecnica delle Marche, Salesi Hospital, Azienda Ospedaliero Universitaria, Ancona, Italy.
| | - Sonia Fantone
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126 Ancona, Italy
| | - Caterina Licini
- Department of Clinical and Molecular Sciences (DISCLIMO), Università Politecnica delle Marche, Via Tronto 10/a, Ancona 60126, Italy
| | - Daniela Marzioni
- Department of Experimental and Clinical Medicine, Università Politecnica delle Marche, 60126 Ancona, Italy
| | - Monica Mattioli-Belmonte
- Department of Clinical and Molecular Sciences (DISCLIMO), Università Politecnica delle Marche, Via Tronto 10/a, Ancona 60126, Italy
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Yasuda G, Moriuchi E, Hamanaka R, Fujishita A, Yoshimi T, Yamamoto K, Hayashida K, Koga Y, Yoshida N. Visualization of mandibular movement relative to the maxilla during mastication in mice: integration of kinematic analysis and reconstruction of a three-dimensional model of the maxillofacial structure. BMC Oral Health 2021; 21:527. [PMID: 34649558 PMCID: PMC8515672 DOI: 10.1186/s12903-021-01879-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 09/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mastication is one of the most fundamental functions for the conservation of human life. To clarify the pathogenetic mechanism of various oral dysfunctions, the demand for devices for evaluating stomatognathic function has been increasing. The aim of the present study was to develop a system to reconstruct and visualize 3-dimensional (3D) mandibular movements relative to the maxilla, including dynamic transition of occlusal contacts between the upper and lower dentitions during mastication in mice. METHODS First, mandibular movements with six degrees of freedom were measured using a motion capture system comprising two high-speed cameras and four reflective markers. Second, 3D models of maxillofacial structure were reconstructed from micro-computed tomography images. Movement trajectories of anatomical landmark points on the mandible were then reproduced by integrating the kinematic data of mandibular movements with the anatomical data of maxillofacial structures. Lastly, 3D surface images of the upper dentition with the surrounding maxillofacial structures were transferred to each of the motion capture images to reproduce mandibular movements relative to the maxilla. We also performed electromyography (EMG) of masticatory muscles associated with mandibular movements. RESULTS The developed system could reproduce the 3D movement trajectories of arbitrary points on the mandible, such as incisor, molars and condylar points with high accuracy and could visualize dynamic transitions of occlusal contacts between upper and lower teeth associated with mandibular movements. CONCLUSIONS The proposed system has potential to elucidate the mechanisms underlying motor coordination of masticatory muscles and to clarify their roles during mastication by taking advantage of the capability to record EMG data synchronously with mandibular movements. Such insights will enhance our understanding of the pathogenesis and diagnosis of oral motor disorders by allowing comparisons between normal mice and genetically modified mice with oral behavioral dysfunctions.
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Affiliation(s)
- Go Yasuda
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Emi Moriuchi
- Department of Orthodontics, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Ryo Hamanaka
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Ayumi Fujishita
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Tomoko Yoshimi
- Department of Orthodontics, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Kana Yamamoto
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Kaori Hayashida
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Yoshiyuki Koga
- Department of Orthodontics, Nagasaki University Hospital, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Noriaki Yoshida
- Department of Orthodontics and Dentofacial Orthopedics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan.
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Xiang T, Tao ZY, Liao LF, Wang S, Cao DY. Animal Models of Temporomandibular Disorder. J Pain Res 2021; 14:1415-1430. [PMID: 34079358 PMCID: PMC8166243 DOI: 10.2147/jpr.s303536] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 04/04/2021] [Indexed: 12/12/2022] Open
Abstract
Temporomandibular disorders (TMD) are a group of diseases in the oral and maxillofacial region that can manifest as acute or chronic persistent pain, affecting millions of people worldwide. Although hundreds of studies have explored mechanisms and treatments underlying TMD, multiple pathogenic factors and diverse clinical manifestations make it still poorly managed. Appropriate animal models are helpful to study the pathogenesis of TMD and explore effective treatment measures. At present, due to the high cost of obtaining large animals, rodents and rabbits are often used to prepare TMD animal models. Over the past decade, various animal models have been intensively developed to understand neurobiological and molecular mechanisms of TMD, and seek effective treatments. Although these models cannot carry out all clinical features, they are valuable in revealing the mechanisms of TMD and creating curative access. Currently, there are multitudinous animal models of TMD research. They can be constructed in different means and summarized into four ways according to the various causes and symptoms, including chemical induction (intra-articular injection of ovalbumin, collagenase, formalin, vascular endothelial growth factor, intramuscular injection of complete Freund’s adjuvant, etc.), mechanical stress stimulation (passive mouth opening, change of chewing load), surgical operation (partial disc resection, joint disc perforation) and psychological stress induction. Here, we summarize and discuss different approaches of animal models for determining neurophysiological and mechanical mechanisms of TMD and assess their advantages and limitations, respectively.
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Affiliation(s)
- Ting Xiang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710004, People's Republic of China.,Department of Orthodontics, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Zhuo-Ying Tao
- Discipline of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong, 999077, People's Republic of China
| | - Li-Fan Liao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Shuang Wang
- Department of Orthodontics, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710004, People's Republic of China
| | - Dong-Yuan Cao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Research Center of Stomatology, Xi'an Jiaotong University College of Stomatology, Xi'an, Shaanxi, 710004, People's Republic of China
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6
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Rose BJ, Weyand JA, Liu B, Smith JF, Perez BR, Clark JC, Goodman M, Hirschi Budge KM, Eggett DL, Arroyo JA, Reynolds PR, Kooyman DL. Exposure to second-hand cigarette smoke exacerbates the progression of osteoarthritis in a surgical induced murine model. Histol Histopathol 2021; 36:347-353. [PMID: 33576000 DOI: 10.14670/hh-18-311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Osteoarthritis (OA), formerly understood to be a result of passive wear, is now known to be associated with chronic inflammation. Cigarette smoking promotes systemic inflammation and has been implicated in increased joint OA incidence in some studies, though the recent observational data on the association are contradictory. We hypothesize that second-hand smoke (SHS) treatment will increase the incidence of OA in a mouse model that has been subjected to a surgical destabilization of the medial meniscus (DMM). To test this hypothesis, we applied either SHS treatment or room air (RA) to mice for 28 days post-DMM surgery. Histopathology findings indicated that the knees of SHS mice exhibited more severe OA than their control counterparts. Increased expression of matrix metalloprotease-13 (MMP-13), an important extracellular protease known to degrade articular cartilage, and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), an intracellular effector of inflammatory pathways, were observed in the SHS group. These findings provide greater understanding and evidence for a detrimental role of cigarette smoke on OA progression and systemic inflammation.
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Affiliation(s)
- Brandon J Rose
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Jeffery A Weyand
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Brady Liu
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Jacob F Smith
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Brian R Perez
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - J Christian Clark
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Michael Goodman
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Kelsey M Hirschi Budge
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Dennis L Eggett
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Juan A Arroyo
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - Paul R Reynolds
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
| | - David L Kooyman
- Department of Physiology and Developmental Biology, Brigham Young University, Provo, Utah, United States
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Cui C, Zheng L, Fan Y, Zhang J, Xu R, Xie J, Zhou X. Parathyroid hormone ameliorates temporomandibular joint osteoarthritic-like changes related to age. Cell Prolif 2020; 53:e12755. [PMID: 32154622 PMCID: PMC7162802 DOI: 10.1111/cpr.12755] [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] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Ageing could be a contributing factor to the progression of temporomandibular joint osteoarthritis (TMJ OA), whereas its pathogenesis and potential therapeutic strategy have not been comprehensively investigated. MATERIALS AND METHODS We generated ageing mouse models (45-week and 60-week; 12-week mice as control) and intermittently injected 45-week mice with parathyroid hormone (PTH(1-34)) or vehicle for 4 weeks. Cartilage and subchondral bone of TMJ were analysed by microCT, histological and immunostaining. Western blot, qRT-PCR, ChIP, ELISA and immunohistochemical analysis were utilized to examination the mechanism of PTH(1-34)'s function. RESULTS We showed apparent OA-like phenotypes in ageing mice. PTH treatment could ameliorate the degenerative changes and improve bone microarchitecture in the subchondral bone by activating bone remodelling. Moreover, PTH inhibited phosphorylation level of Smad3, which can combine with p16ink4a gene promoter region, resulting in reduced senescent cells accumulation and increased cellular proliferation of marrow mesenchymal stem cells (MSCs). ELISA also showed relieved levels of specific senescent-associated secretory phenotype (SASP) in ageing mice after PTH treatment. CONCLUSIONS In summary, PTH may reduce the accumulation of senescent cells in subchondral bone by inhibiting p16ink4a and improve bone marrow microenvironment to active bone remodelling process, indicating PTH administration could be a potential preventative and therapeutic treatment for age-related TMJ OA.
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Affiliation(s)
- Chen Cui
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Yi Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Jun Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China.,School of Stomatology, Kunming Medical University, Kunming, China
| | - Ruoshi Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
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Ou F, Su K, Sun J, Zhang Z, Peng Y, Liao G. Temporomandibular joint disorders contribute to anxiety in BalB/C mice. Biochem Biophys Res Commun 2019; 516:339-343. [PMID: 31208723 DOI: 10.1016/j.bbrc.2019.06.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 06/09/2019] [Indexed: 01/28/2023]
Abstract
Despite a high comorbidity between these two disorders, the physiological association between temporomandibular joint disorders (TMDs) and anxiety remains unknown. This study aimed to investigate whether TMDs contribute to anxiety through the induction of oligodendrogenesis in the hippocampus using a mouse model of TMD. Forty 8-week-old male BalB/C mice were used in the experiments. The mice were randomly divided into 4 groups: (1) control group (N group); (2) elevated occlusion group (E group); (3) restriction group (R group); and (4) elevated occlusion and restriction group (ER group). The mice were subjected to behavior tests of open field tests and elevated plus maze analysis. The serum corticosterone levels and expression of mature oligodendrocyte marker MBP and the oligodendrocyte marker RIP were analyzed. All data were statistically analyzed using by one-way analysis of variance. The TMD group showed condylar degeneration compared with the control group. Additionally, exposure to chronic restraint stress for 3 weeks after TMD significantly exacerbated anxiety-like behavior and resulted in a significant increase in serum corticosterone levels and in the expression of MBP and RIP in the dentate gyrus (DG) and CA3 in the hippocampus. Taken together, these data suggest that TMD lead to increased oligodendrogenesis in the hippocampus, which contributes to the development of anxiety-like behavior. TMD could contribute to anxiety by inducing oligodendrogenesis in the hippocampus.
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Affiliation(s)
- Farong Ou
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China.
| | - Kai Su
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China.
| | - Jiadong Sun
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China.
| | - Zhiguang Zhang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China.
| | - Yun Peng
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China.
| | - Guiqing Liao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, Guangdong, China.
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9
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Zhang HY, Liu Q, Liu JQ, Wang J, Yang HX, Xu XJ, Xie MJ, Liu XD, Yu SB, Zhang M, Lu L, Zhang J, Wang MQ. Molecular changes in peripheral blood involving osteoarthritic joint remodelling. J Oral Rehabil 2019; 46:820-827. [PMID: 31046158 PMCID: PMC6851883 DOI: 10.1111/joor.12810] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/20/2019] [Accepted: 04/25/2019] [Indexed: 11/27/2022]
Abstract
Biomarkers of temporomandibular joint (TMJ) osteoarthritis (OA) remain unknown. The objective was to detect whether molecular biomarkers from peripheral blood leucocytes (PBLs) engage in TMJ OA lesions. Thirty‐four six‐week‐old Sprague Dawley rats were used. The top upregulated gene ontology categories and gene‐fold changes in PBLs were detected by a microarray analysis comparing rats that received 20‐week unilateral anterior crossbite (UAC) treatment with age‐matched controls (n = 4). Twenty weeks of UAC treatment had been reported to induce TMJ OA‐like lesions. The other twenty‐four rats were randomly placed in the UAC and control groups at 12‐ and 20‐week time points (n = 6). The mRNA expression levels of the selected biomarkers derived from the microarray analysis and their protein expression in the alveolar bone and TMJ were detected. The microarray analysis indicated that the three most highly involved genes in PBLs were Egr1, Ephx1 and Il10, which were confirmed by real‐time PCR detection. The increased protein expression levels of the three detected molecules were demonstrated in cartilage and subchondral bone (P < 0.05), and increased levels of EPHX1 were reported in discs (P < 0.05); however, increased levels were not present in the alveolar bone. Immunohistochemistry revealed the increased distribution of EGR1‐positive, EXPH1‐positive and IL10‐positive cells predominantly in the osteochondral interface, with EXPH1 also present in TMJ discs. In conclusion, the increased mRNA expression of Egr1, Ephx1 and Il10 in PBLs may serve as potential biomarkers for developed osteoarthritic lesions relating to osteochondral interface hardness changes induced by dental biomechanical stimulation.
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Affiliation(s)
- Hong-Yun Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Qian Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Jin-Qiang Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,School of Stomatology, The Jiamusi University, Jiamusi, China
| | - Jing Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hong-Xu Yang
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xiao-Jie Xu
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - Mian-Jiao Xie
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xiao-Dong Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Shi-Bin Yu
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Mian Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Lei Lu
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Jing Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Mei-Qing Wang
- State Key Laboratory of Military Stomatology, National Clinical Research Centre for Oral Disease & Shaanxi International Joint Research Centre for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
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Anti-rheumatoid arthritis effects in adjuvant-induced arthritis in rats and molecular docking studies of Polygonum orientale L. extracts. Immunol Lett 2018; 201:59-69. [PMID: 30471320 DOI: 10.1016/j.imlet.2018.11.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/08/2018] [Accepted: 11/18/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE Polygonum orientale L. (family: Polygonaceae), named Hongcao in China, has effects of dispelling wind and dampness, promoting blood circulation, and relieving pain. Our group has already studied and confirmed that POEa and POEe (ethyl acetate and ethyl ether extract of P. orientale, respectively) had anti-inflammatory and analgesic effects in early research, which was mainly relevant to the existence of flavonoids. According to the clinical application of P. orientale in traditional Chinese medicine, it has long been used for rheumatic arthralgia and rheumatoid arthritis. Therefore, our group further explored whether flavonoids of P. orientale have anti-rheumatoid arthritis effect and how does they play this role. METHODS Dried small pieces of the stems and leaves of P. orientale were decocted with water and partitioned successively to obtain POEa and POEe, respectively. The anti-rheumatoid arthritis effect of P. orientale was studied by using a Freund's complete adjuvant (FCA)-induced arthritis (AIA) in a rat model. The levels of PGE2, TNF-α, and IL-1β in serum of AIA rats were detected by enzyme linked immunosorbent assay (ELISA) to explore its mechanisms. In addition, we computationally studied the relationships between the 15 chemical components of POEa and POEe, and the currently focused 9 target proteins of rheumatoid arthritis by molecular docking. RESULTS Pharmacological experiments showed that POEa and POEe significantly ameliorate symptoms of rheumatoid arthritis via reducing paw swelling volume, arthritis score, and thymus and spleen indices, as well as increasing body weight in AIA rats. Simultaneously, the concentrations of PGE2, TNF-α, and IL-1β were significantly decreased by POEa and POEe. Histopathology revealed noticeable reduction in bone and cartilage, synovial hyperplasia, inflammatory cell infiltration, cartilage surface erosion, and joint degeneration by POEa and POEe treatment. In addition, the molecular docking studies showed that docking scores of 14 chemical compositions (including 12 flavonoids and 2 phenolic acids) of POEa and POEe with anti-rheumatoid arthritis protein targets were better than the complexed ligands of the anti-rheumatoid arthritis protein targets. Among them, six flavonoids in POEa and POEe had more docking protein targets (n ≥ 3). Five anti-rheumatoid arthritis targets including high-temperature requirement A1 protease (HtrA1), janus kinase 1 (JAK1), cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (i-NOS), and prostaglandin E2 (PGE2) had better docking score compared with the complexed ligands. Moreover, most of the chemical components in POEa and POEe showed strong interaction with HtrA1. CONCLUSIONS The flavonoids of P. orientale have anti-rheumatoid arthritis effect. In addition, the molecular docking results indicate that quercetin, catechol, orientin, and other six flavonoids may be closely related to HtrA1, JAK1, COX-2, i-NOS, and PGE2 protein target receptors. It suggests that these chemical compositions form strong protein-ligand complexes with these protein targets, especially HtrA1 to exert anti-rheumatoid arthritis. Further experimental studies show that mechanisms of anti-rheumatoid arthritis effects may also be relevant to inhibit the levels of PGE2, TNF-α, and IL-1β in serum. Therefore, our group can further explore the possible active ingredients and mechanisms of the anti-rheumatoid arthritis effects of flavonoids, and focus on the inhibition of the expression of inflammatory factors and the TGF-β1/Smad signaling pathway associated with HtrA1 protein target receptors, which can provide a direction and powerful reference for the action mechanism and drug research of anti-rheumatoid arthritis of flavonoids in P. orientale.
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Aberrant activation of latent transforming growth factor-β initiates the onset of temporomandibular joint osteoarthritis. Bone Res 2018; 6:26. [PMID: 30210898 PMCID: PMC6131160 DOI: 10.1038/s41413-018-0027-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 02/05/2023] Open
Abstract
There is currently no effective medical treatment for temporomandibular joint osteoarthritis (TMJ-OA) due to a limited understanding of its pathogenesis. This study was undertaken to investigate the key role of transforming growth factor-β (TGF-β) signalling in the cartilage and subchondral bone of the TMJ using a temporomandibular joint disorder (TMD) rat model, an ageing mouse model and a Camurati–Engelmann disease (CED) mouse model. In the three animal models, the subchondral bone phenotypes in the mandibular condyles were evaluated by µCT, and changes in TMJ condyles were examined by TRAP staining and immunohistochemical analysis of Osterix and p-Smad2/3. Condyle degradation was confirmed by Safranin O staining, the Mankin and OARSI scoring systems and type X collagen (Col X), p-Smad2/3a and Osterix immunohistochemical analyses. We found apparent histological phenotypes of TMJ-OA in the TMD, ageing and CED animal models, with abnormal activation of TGF-β signalling in the condylar cartilage and subchondral bone. Moreover, inhibition of TGF-β receptor I attenuated TMJ-OA progression in the TMD models. Therefore, aberrant activation of TGF-β signalling could be a key player in TMJ-OA development. Blocking the activity of a critical growth factor could help treat degenerative disease of the jaw joint, according to experiments in three rodent models. Xuedong Zhou from Sichuan University in Chengdu, China, examined the cartilage and adjoining layer of bone found at the ends of the jawbone in a rat model of temporomandibular joint disorder and in two related mouse models. In all three, the researchers observed tissue abnormalities consistent with what’s seen in humans with osteoarthritis of the jaw joint, a condition with no effective therapeutic options. They showed that transforming growth factor-β, a master regulatory protein, displayed aberrant signalling patterns in these tissues and that blocking this protein’s receptor with a drug attenuated the disease process. The findings help explain what drives jaw joint osteoarthritis — and point to a strategy for treating it.
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Seol D, Tochigi Y, Bogner AM, Song I, Fredericks DC, Kurriger GL, Smith SM, Goetz JE, Buckwalter JA, Martin JA. Effects of knockout of the receptor for advanced glycation end-products on bone mineral density and synovitis in mice with intra-articular fractures. J Orthop Res 2018; 36:2439-2449. [PMID: 29667227 PMCID: PMC6128287 DOI: 10.1002/jor.24021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 04/12/2018] [Indexed: 02/04/2023]
Abstract
Our group employed the mouse closed intra-articular fracture (IAF) model to test the hypothesis that the innate immune system plays a role in initiating synovitis and post-traumatic osteoarthritis (PTOA) in fractured joints. A transgenic strategy featuring knockout of the receptor for advanced glycation end-products (RAGE -/- ) was pursued. The 42 and 84 mJ impacts used to create fractures were in the range previously reported to cause PTOA at 60 days post-fracture. MicroCT (μCT) was used to assess fracture patterns and epiphyseal and metaphyseal bone loss at 30 and 60 days post-fracture. Cartilage degeneration, synovitis, and matrix metalloproteinase (MMP-3, -13) expression were evaluated by histologic analyses. In wild-type mice, μCT imaging showed that 84 mJ impacts led to significant bone loss at 30 days (p < 0.05), but recovered to normal at 60 days. Bone losses did not occur in RAGE-/- mice. Synovitis was significantly elevated in 84 mJ impact wild-type mice at both endpoints (30 day, p = 0.001; 60 day, p = 0.05), whereas in RAGE-/- mice synovitis was elevated only at 30 days (p = 0.02). Mankin scores were slightly elevated in both mouse strains at 30 days, but not at 60 days. Immunohistochemistry revealed significant fracture-related increases in MMP-3 and -13 expression at 30 days (p < 0.05), with no significant difference between genotypes. These findings indicated that while RAGE -/- accelerated recovery from fracture and diminished synovitis, arthritic changes were temporary and too modest to detect an effect on the pathogenesis of PTOA. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:2439-2449, 2018.
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Affiliation(s)
- Dongrim Seol
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
| | - Yuki Tochigi
- Department of Orthopaedic Surgery, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
| | - Ashley M. Bogner
- Bone Healing Research Laboratory and Iowa Spine Research Laboratory, University of Iowa, Coralville, IA 52241, USA
| | - Ino Song
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA,Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA
| | - Douglas C. Fredericks
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA,Bone Healing Research Laboratory and Iowa Spine Research Laboratory, University of Iowa, Coralville, IA 52241, USA
| | - Gail L. Kurriger
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
| | - Sonja M. Smith
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
| | - Jessica E. Goetz
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA
| | - Joseph A. Buckwalter
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA,Veterans Affairs Medical Center, Iowa City, IA 52246, USA
| | - James A. Martin
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA 52242, USA,Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242, USA,Correspondence to James A. Martin (Address: 1182 ML, University of Iowa, Iowa City, IA 52242; T: +1-319-335-5810; F: +1-319-335-5631; )
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Preclinical randomized controlled trial of bilateral discectomy versus bilateral discopexy in Black Merino sheep temporomandibular joint: TEMPOJIMS – Phase 1- histologic, imaging and body weight results. J Craniomaxillofac Surg 2018; 46:688-696. [DOI: 10.1016/j.jcms.2018.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 12/27/2017] [Accepted: 01/22/2018] [Indexed: 12/18/2022] Open
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Su N, Liu Y, Yang X, Shen J, Wang H. Association of malocclusion, self-reported bruxism and chewing-side preference with oral health-related quality of life in patients with temporomandibular joint osteoarthritis. Int Dent J 2017; 68:97-104. [PMID: 29094335 DOI: 10.1111/idj.12344] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the association of oral health-related quality of life (OHRQoL) with malocclusion and self-reported bruxism and chewing-side preference (CSP) in patients with temporomandibular joint osteoarthritis (TMJ-OA). METHODS This study involved 511 patients diagnosed with TMJ-OA. Each participant completed the Chinese version of the 14-item Oral Health Impact Profile (OHIP-C14) questionnaire and received a clinical examination concerning malocclusion (posterior crossbite, overbite, overjet and anterior open bite). Also patients' self-reported awake bruxism (AB), sleep bruxism (SB) and CSP based on the Oral Behavior Checklist (OBC) were recorded. The associations of OHIP-C14 with malocclusion and self-reported bruxism and CSP were assessed using multiple linear regression analysis. RESULTS Posterior crossbite, overbite, overjet and anterior open bite were not significantly associated with either the total OHIP-C14 score or the scores of each domain of OHIP-C14. AB was significantly associated with both the total OHIP-C14 score and the scores of each domain with the largest standardised coefficients. CSP was significantly associated with both the total OHIP-C14 score and the scores of the psychological and social domains. SB was significantly associated with the scores of both the function limitation and psychological disability domains. CONCLUSIONS Malocclusion is not significantly associated with OHRQoL in patients with TMJ-OA. Self-reported AB is highly associated with OHRQoL in patients with TMJ-OA, while self-reported SB and CSP are both moderately associated with OHRQoL in patients with TMJ-OA.
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Affiliation(s)
- Naichuan Su
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Social Dentistry, Academic Center for Dentistry Amsterdam, Amsterdam, The Netherlands
| | - Yan Liu
- Department of Oral and Maxillofacial Surgery, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Xianrui Yang
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Orthodontics, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Jiefei Shen
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hang Wang
- State Key Laboratory of Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Weng Y, Liu Y, Du H, Li L, Jing B, Zhang Q, Wang X, Wang Z, Sun Y. Glycosylation of DMP1 Is Essential for Chondrogenesis of Condylar Cartilage. J Dent Res 2017; 96:1535-1545. [PMID: 28759313 DOI: 10.1177/0022034517717485] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Y. Weng
- Department of Implantology, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Y. Liu
- Department of Endodontics, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - H. Du
- Department of Endodontics, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - L. Li
- Department of Oral Maxillofacial Surgery, Huashan Hospital, Fudan University, Shanghai, China
| | - B. Jing
- School of Medicine, Stem Cell Center, Tongji University, Shanghai, China
| | - Q. Zhang
- Department of Endodontics, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - X. Wang
- Department of Cell Biology and Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Z. Wang
- Department of Implantology, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Y. Sun
- Department of Implantology, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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Plausible Roles for RAGE in Conditions Exacerbated by Direct and Indirect (Secondhand) Smoke Exposure. Int J Mol Sci 2017; 18:ijms18030652. [PMID: 28304347 PMCID: PMC5372664 DOI: 10.3390/ijms18030652] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/07/2017] [Accepted: 03/14/2017] [Indexed: 02/07/2023] Open
Abstract
Approximately 1 billion people smoke worldwide, and the burden placed on society by primary and secondhand smokers is expected to increase. Smoking is the leading risk factor for myriad health complications stemming from diverse pathogenic programs. First- and second-hand cigarette smoke contains thousands of constituents, including several carcinogens and cytotoxic chemicals that orchestrate chronic inflammatory responses and destructive remodeling events. In the current review, we outline details related to compromised pulmonary and systemic conditions related to smoke exposure. Specifically, data are discussed relative to impaired lung physiology, cancer mechanisms, maternal-fetal complications, cardiometabolic, and joint disorders in the context of smoke exposure exacerbations. As a general unifying mechanism, the receptor for advanced glycation end-products (RAGE) and its signaling axis is increasingly considered central to smoke-related pathogenesis. RAGE is a multi-ligand cell surface receptor whose expression increases following cigarette smoke exposure. RAGE signaling participates in the underpinning of inflammatory mechanisms mediated by requisite cytokines, chemokines, and remodeling enzymes. Understanding the biological contributions of RAGE during cigarette smoke-induced inflammation may provide critically important insight into the pathology of lung disease and systemic complications that combine during the demise of those exposed.
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