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Huang L, Bai D, Su X. Altered expression of transfer RNAs and their possible roles in brain white matter injury. Neuroreport 2024:00001756-990000000-00226. [PMID: 38597261 DOI: 10.1097/wnr.0000000000002036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Transfer RNAs (tRNAs) can regulate cell behavior and are associated with neurological disorders. Here, we aimed to investigate the expression levels of tRNAs in oligodendrocyte precursor cells (OPCs) and their possible roles in the regulation of brain white matter injury (WMI). Newborn Sprague-Dawley rats (postnatal day 5) were used to establish a model that mimicked neonatal brain WMI. RNA-array analysis was performed to examine the expression of tRNAs in OPCs. psRNAtarget software was used to predict target mRNAs of significantly altered tRNAs. Gene ontology (GO) and KEGG were used to analyze the pathways for target mRNAs. Eighty-nine tRNAs were changed after WMI (fold change absolute ≥1.5, P < 0.01), with 31 downregulated and 58 upregulated. Among them, three significantly changed tRNAs were identified, with two being significantly increased (chr10.trna1314-ProTGG and chr2.trna2771-ProAGG) and one significantly decreased (chr10.trna11264-GlyTCC). Further, target mRNA prediction and GO/KEGG pathway analysis indicated that the target mRNAs of these tRNAs are mainly involved in G-protein coupled receptor signaling pathways and beta-alanine metabolism, which are both related to myelin formation. In summary, the expression of tRNAs in OPCs was significantly altered after brain WMI, suggesting that tRNAs may play important roles in regulating WMI. This improves the knowledge about WMI pathophysiology and may provide novel treatment targets for WMI.
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Affiliation(s)
- Lingyi Huang
- Department of Orthodontics, West China College of Stomatology/State Key Laboratory of Oral Diseases, Sichuan University
| | - Ding Bai
- Department of Orthodontics, West China College of Stomatology/State Key Laboratory of Oral Diseases, Sichuan University
| | - Xiaojuan Su
- Department of Pediatrics/Key Laboratory of Birth Defects and Related Diseases of Women and Children (Ministry of Education), West China Second University Hospital, Sichuan University, Chengdu, China
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Dai W, Shu R, Yang F, Li B, Johnson HM, Yu S, Yang H, Chan YK, Yang W, Bai D, Deng Y. Engineered Bio-Heterojunction Confers Extra- and Intracellular Bacterial Ferroptosis and Hunger-Triggered Cell Protection for Diabetic Wound Repair. Adv Mater 2024; 36:e2305277. [PMID: 37526952 DOI: 10.1002/adma.202305277] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/30/2023] [Indexed: 08/02/2023]
Abstract
Nanomaterial-mediated ferroptosis has garnered considerable interest in the antibacterial field, as it invokes the disequilibrium of ion homeostasis and boosts lipid peroxidation in extra- and intracellular bacteria. However, current ferroptosis-associated antibacterial strategies indiscriminately pose damage to healthy cells, ultimately compromising their biocompatibility. To address this daunting issue, this work has designed a precise ferroptosis bio-heterojunction (F-bio-HJ) consisting of Fe2 O3 , Ti3 C2 -MXene, and glucose oxidase (GOx) to induce extra-intracellular bacteria-targeted ferroptosis for infected diabetic cutaneous regeneration. Fe2 O3 /Ti3 C2 -MXene@GOx (FMG) catalytically generates a considerable amount of ROS which assaults the membrane of extracellular bacteria, facilitating the permeation of synchronously generated Fe2+ /Fe3+ into bacteria under near-infrared (NIR) irradiation, causing planktonic bacterial death via ferroptosis, Fe2+ overload, and lipid peroxidation. Additionally, FMG facilitates intracellular bacterial ferroptosis by transporting Fe2+ into intracellular bacteria via inward ferroportin (FPN). With GOx consuming glucose, FMG creates hunger protection which helps macrophages escape cell ferroptosis by activating the adenosine 5'-monophosphate (AMP) activated protein kinase (AMPK) pathway. In vivo results authenticate that FMG boosts diabetic infectious cutaneous regeneration without triggering ferroptosis in normal cells. As envisaged, the proposed tactic provides a promising approach to combat intractable infections by precisely terminating extra-intracellular infection via steerable ferroptosis, thereby markedly elevating the biocompatibility of therapeutic ferroptosis-mediated strategies.
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Affiliation(s)
- Wenyu Dai
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Rui Shu
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Fan Yang
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Bin Li
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Hannah M Johnson
- Department of Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Sheng Yu
- Department of Chemistry, Washington State University, Pullman, WA, 99164, USA
| | - Hang Yang
- College of Biomedical Engineering, Sichuan University, Chengdu, 610065, China
| | - Yau Kei Chan
- Department of Ophthalmology, The University of Hong Kong, Hong Kong, 999077, China
| | - Weizhong Yang
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
| | - Ding Bai
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yi Deng
- West China School of Stomatology College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077, China
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Li B, Yang W, Shu R, Yang H, Yang F, Dai W, Chen W, Chan YK, Bai D, Deng Y. Antibacterial and Angiogenic (2A) Bio-Heterojunctions Facilitate Infectious Ischemic Wound Regeneration via an Endogenous-Exogenous Bistimulatory Strategy. Adv Mater 2024; 36:e2307613. [PMID: 37848208 DOI: 10.1002/adma.202307613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/23/2023] [Indexed: 10/19/2023]
Abstract
In infectious ischemic wounds, a lack of blood perfusion significantly worsens microbe-associated infection symptoms and frequently complicates healing. To overcome this daunting issue, antibacterial and angiogenic (2A) bio-heterojunctions (bio-HJs) consisting of CuS/MXene heterojunctions and a vascular endothelial growth factor (VEGF)-mimicking peptide (VMP) are devised and developed to accelerate infectious cutaneous regeneration by boosting angiogenesis via an endogenous-exogenous bistimulatory (EEB) strategy. Assisted by near-infrared irradiation, the bio-HJ platform exhibits versatile synergistic photothermal, photodynamic, and chemodynamic effects for robust antibacterial efficacy. In addition, copper ions liberated from 2A bio-HJs elevate VEGF secretion from fibroblasts, which provokes VEGF receptors (VEGFR) activation through an endogenous pathway, whereas VMP itself promotes an exogenous pathway to facilitate endothelial cell multiplication and tube formation by directly activating the VEGFR signaling pathway. Moreover, employing an in vivo model of infectious ischemic wounds, it is confirmed that the EEB strategy can considerably boost cutaneous regeneration through pathogen elimination, angiogenesis promotion, and collagen deposition. As envisaged, this work leads to the development of a powerful 2A bio-HJ platform that can serve as an effective remedy for bacterial invasion-induced ischemic wounds through the EEB strategy.
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Affiliation(s)
- Bin Li
- West China Hospital of Stomatology, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Weizhong Yang
- College of Biomedical Engineering, Sichuan University, Chengdu, 610065, China
| | - Rui Shu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Hang Yang
- College of Biomedical Engineering, Sichuan University, Chengdu, 610065, China
| | - Fan Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Wenyu Dai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Wanxi Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Yau Kei Chan
- Department of Ophthalmology, The University of Hong Kong, Hong Kong, Hong Kong SAR, 999077, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, China
| | - Yi Deng
- West China Hospital of Stomatology, College of Biomedical Engineering, School of Chemical Engineering, Sichuan University, Chengdu, 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077, China
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Yang X, Justus R, Li B, Xue C, Lee ITD, Guo Y, Bai D, Han X, Xu H. Customized planning of the visible maxillary arch width in harmony with interparopia width and smile width for female facial aesthetics. Orthod Craniofac Res 2024; 27:139-150. [PMID: 37534780 DOI: 10.1111/ocr.12697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 05/09/2023] [Accepted: 07/12/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND The visible maxillary arch width (VAW) is an important aesthetic-determining feature. To date, there is no well-established methodology to determine the aesthetically optimal VAW in customized treatment planning. METHODS In this study, the common traits of the dentofacial configuration were investigated in most attractive Asian and Caucasian female smiles. The smiling photo of a subject was digitally modified based on combined variations of VAW, smile width (SW), transverse facial dimensions (TFD), and vertical facial dimensions. These modified photos were assessed for aesthetics. The aesthetically essential parameters were identified, and their mathematic correlations and reference ranges were determined for different vertical facial patterns. Using the obtained results, a mathematic guidance was constructed for customized smile designing. The applicability of this guidance was tested in Asian females. RESULTS The most attractive Asian and Caucasian female smiles have intraracial and interracial commonalities in the VAW-to-TFD ratios. The interparopia width (IPD) predominated over facial widths in determining well-matched VAW and SW. For optimal smile aesthetics, the VAW and SW were correlated as simulated by the formula 1.92 IPD ≤ VAW + 2.3 SW ≤ 2.17 IPD, plus the VAW-to-IPD ratio within 0.54 to 0.62 and the SW-to-IPD ratio within 0.61 to 0.71, ranges tailored to vertical facial patterns. This constitutes a mathematic guidance for customized planning of the aesthetically optimal VAW. This guidance was preliminarily validated to be applicable to Asian females. CONCLUSIONS The VAW-to-TFD ratios were essential for Caucasian and Asian female smile aesthetics. The mathematic guidance could serve as a reference for customized smile designs for Asian females.
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Affiliation(s)
- Xianrui Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Roberto Justus
- Department of Orthodontics, Intercontinental University, Mexico City, Mexico
| | - Bin Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chaoran Xue
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | | | - Yongwen Guo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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He Y, Tian Y, Zhang W, Wang X, Yang X, Li B, Ge L, Bai D, Li D. Corrigendum to "Fabrication of oxidized sodium alginate-collagen heterogeneous bilayer barrier membrane with osteogenesis-promoting ability" [International Journal of Biological Macromolecules 202 (2022) 55-67]. Int J Biol Macromol 2024; 254:127359. [PMID: 37956534 DOI: 10.1016/j.ijbiomac.2023.127359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Affiliation(s)
- Yiruo He
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Ye Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Wenjie Zhang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xinghai Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Xue Yang
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Bin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Liming Ge
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China.
| | - Defu Li
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.
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Li B, Wang P, Zheng Q, Huang L, Hu S, Han X, Bai D, Xue C. Does clinical experience affect the bracket bonding accuracy of guided bonding devices in vitro? Angle Orthod 2024; 94:59-67. [PMID: 37503736 DOI: 10.2319/020623-88.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 06/01/2023] [Indexed: 07/29/2023] Open
Abstract
OBJECTIVES To study whether and how the clinical experience of the operator affects the accuracy of bracket placement using guided bonding devices (GBDs) in vitro. MATERIALS AND METHODS Five resin models were bonded virtually with brackets, and the corresponding GBDs were generated and three-dimensionally printed. Nine operators, which included three dental students, three orthodontic students, and three orthodontists, bonded the brackets on the resin models using GBDs on a dental mannequin. After being bonded with brackets, the models were scanned, and the actual and designed positions of the brackets were compared. RESULTS There was no immediate debonding. The orthodontists spent a significantly shorter time (22.36 minutes) in bracket bonding than the dental students (24.62 minutes; P < .05). The brackets tended to deviate to the buccal side in the dental student group. Linear deviations tended to be smallest in the orthodontic student group, but no significant difference was found among operators with different clinical experience (P > .5). All linear and angular deviations in each group were under 0.5 mm and 2°, respectively. CONCLUSIONS Clinical experience was positively related to the bonding accuracy using GBDs, especially in the buccolingual dimension. Inexperience also led to longer bonding duration. However, bonding accuracy was clinically acceptable in general.
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Wang Y, Wang P, Ye S, Shi Y, He Y, Han X, Bai D, Xue C. Optimal settings for different tooth types in the virtual bracket removal technique. Angle Orthod 2024; 94:68-74. [PMID: 37839805 DOI: 10.2319/022323-124.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 07/01/2023] [Indexed: 10/17/2023] Open
Abstract
OBJECTIVES To determine the optimal settings for reconstructing the buccal surfaces of different tooth types using the virtual bracket removal (VBR) technique. MATERIALS AND METHODS Ten postbonded digital dentitions (with their original prebonded dentitions) were enrolled. The VBR protocol was carried out under five settings from three commonly used computer-aided design (CAD) systems: OrthoAnalyzer (O); Meshmixer (M); and curvature (G2), tangent (G1), and flat (G0) from Geomagic Studio. The root mean squares (RMSs) between the reconstructed and prebonded dentitions were calculated for each tooth and compared with the clinically acceptable limit (CAL) of 0.10 mm. RESULTS The overall prevalences of RMSs below the CAL were 66.80%, 70.08%, 62.30%, 94.83%, and 56.15% under O, M, G2, G1, and G0, respectively. For the upper dentition, the mean RMSs were significantly lower than the CAL for all tooth types under G1 and upper incisors and canines under M and G2. For the lower dentition, the mean RMSs were significantly lower than the CAL for all tooth types under G1 and lower incisors and canines under M, G2, and G0 (all P < .05). Additionally, the mean RMSs of all teeth under G1 were significantly lower than those under the other settings (all P < .001). CONCLUSIONS The optimal settings varied among different tooth types. G1 performed best for most tooth types compared to the other four settings.
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Yang F, Wang P, Dong X, Dai W, Chen W, Yuan G, Bai D, Xu H. Abnormal mechanical stress induced chondrocyte senescence by YAP loss-mediated METTL3 upregulation. Oral Dis 2023. [PMID: 37983852 DOI: 10.1111/odi.14810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/19/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023]
Abstract
OBJECTIVES Abnormal mechanical stress is the pivotal risk factor of temporomandibular joint osteoarthritis (TMJOA). This study investigated the pathogenic mechanism by which abnormal mechanical stress induced chondrocyte senescence. MATERIALS AND METHODS Cellular senescence was investigated in the rodent model of unilateral anterior crossbite and in the chondrocytes subjected to mechanical overloading in vitro. The effects of Yes-associated protein (YAP) in chondrocyte senescence and its correlation with methyltransferase-like 3 (METTL3) and N6 -methyladenosine (m6 A) modification were evaluated. The role of m6 A modification in chondrocyte senescence was determined. The therapeutic effects of m6 A inhibition in TMJOA were investigated. RESULTS Senescent chondrocytes were accumulated in the mechanically induced TMJOA lesions in rats and mechanical overloading could trigger chondrocyte senescence in vitro. This mechanical stress-induced cellular senescence was revealed to be mediated by YAP deficiency that promoted METTL3-dependent m6 A modification. Moreover, inhibition of m6 A modification rescued chondrocyte senescence in vitro and in vivo, and suppressed TMJOA progression in rats. CONCLUSIONS This study uncovered the underlying mechanism of mechanically induced senescence in TMJOA from the perspective of epitranscriptomics and revealed the therapeutic potential of m6 A inhibition in TMJOA.
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Affiliation(s)
- Fan Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peiqi Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiaomeng Dong
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wenyu Dai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Wanxi Chen
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Gang Yuan
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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He Y, Tian Y, Zhang W, Wang X, Yang X, Li B, Ge L, Bai D, Li D. Corrigendum to "Fabrication of oxidized sodium alginate-collagen heterogeneous bilayer barrier membrane with osteogenesis-promoting ability" [International Journal of Biological Macromolecules 202 (2022) 55-67]. Int J Biol Macromol 2023:126676. [PMID: 37845157 DOI: 10.1016/j.ijbiomac.2023.126676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Affiliation(s)
- Yiruo He
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Ye Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Wenjie Zhang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xinghai Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Xue Yang
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Bin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Liming Ge
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China.
| | - Defu Li
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.
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Xing L, Zhang X, Guo Y, Bai D, Xu H. XGBoost-aided prediction of lip prominence based on hard-tissue measurements and demographic characteristics in an Asian population. Am J Orthod Dentofacial Orthop 2023; 164:357-367. [PMID: 36959014 DOI: 10.1016/j.ajodo.2023.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/01/2023] [Accepted: 01/01/2023] [Indexed: 03/25/2023]
Abstract
INTRODUCTION Prediction of lip prominence based on hard-tissue measurements could be helpful in orthodontic treatment planning and has been challenging and formidable thus far. METHODS A machine learning-based cross-sectional study was conducted on 1549 patients. Hard-tissue measurements and demographic information were used as the input features. Seven popular machine learning algorithms were applied to the datasets to predict upper and lower lip prominence. The algorithm that performed the best was selected for the construction of the prediction model. Evaluation of feature importance was conducted using 3 classical methods. RESULTS Among the 7 algorithms, the XGBoost model performed the best in the prediction of the distances between labrale superius or labrale inferius to the esthetics plane (UL-EP and LL-EP distances), with root mean square error values of 1.25, 1.49 and r2 values of 0.755 and 0.683, respectively. Among the 14 input features, the L1-NB distance contributed the most to the prominences of the upper and lower lips. A lip prominence predictor was developed to facilitate clinical application by deploying the prediction model into a downloadable tool kit. CONCLUSIONS The XGBoost model performed well with high accuracy and practicability in predicting upper and lower lip prominence. The artificial intelligence-aided predictor could serve as a reference for orthodontic treatment planning.
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Affiliation(s)
- Lu Xing
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Xiaoqi Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Yongwen Guo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Wang P, Wang Y, Xu H, Huang Y, Shi Y, Chen S, Bai D, Xue C. Effect of offset on the precision of 3D-printed orthognathic surgical splints. Clin Oral Investig 2023; 27:5141-5151. [PMID: 37415046 DOI: 10.1007/s00784-023-05134-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 06/26/2023] [Indexed: 07/08/2023]
Abstract
OBJECTIVE This study evaluated the effect of offset on the precision of three-dimensional (3D)-printed splints, proposing to optimize the splint design to compensate for systematic errors. MATERIALS AND METHODS 14 resin model sets were scanned and offset as a whole by given distances (0.05, 0.10, 0.15, 0.20, 0.25, 0.30, 0.35, and 0.40 mm). Intermediate splints (ISs) and final splints (FSs) were generated from the non-offset and offset models and grouped correspondingly, named as splint type-offset value, IS-0.05, for instance. Dentitions occluded with the splint were scanned. Translational and rotational deviations of the lower dentition relative to the upper dentition were 3D measured. RESULTS Deviations of ISs and FSs were more evident in the vertical and pitch dimensions, and were mostly acceptable in other dimensions. ISs with offset ≥ 0.05 mm showed vertical deviations significantly below 1 mm (P < 0.05) while ISs with 0.10- to 0.30-mm offsets had pitch rotations significantly lower than 1° (P < 0.05). The Pitch of IS-0.35 was significantly larger than ISs with 0.15- to 0.30-mm offsets (P < 0.05). Meanwhile, FSs fit better as the offset increased and FSs with offsets ≥ 0.15 mm all had deviations significantly lower than 1 mm (for translation) or 1° (for rotation) (P < 0.05). CONCLUSIONS Offset affects the precision of 3D-printed splints. Moderate offset values of 0.10 to 0.30 mm are recommendable for ISs. Offset values ≥ 0.15 mm are recommended for FSs in cases with stable final occlusion. CLINICAL RELEVANCE This study found the optimal offset ranges for 3D-printed ISs and FSs via a standardized protocol.
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Affiliation(s)
- Peiqi Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Yipeng Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Yixi Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Yu Shi
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Siqi Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Chaoran Xue
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China.
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Wang P, Huang L, Yang F, Chen W, Bai D, Guo Y. YAP/TEAD1 and β-catenin/LEF1 synergistically induce estrogen receptor α to promote osteogenic differentiation of bone marrow stromal cells. MedComm (Beijing) 2023; 4:e246. [PMID: 37197086 PMCID: PMC10183651 DOI: 10.1002/mco2.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 02/25/2023] [Accepted: 03/01/2023] [Indexed: 05/19/2023] Open
Abstract
Bone remodeling is vital to the maintenance of bone homeostasis and may lead to destructive skeletal diseases once the balance is disrupted. Crosstalk between Wnt and estrogen receptor (ER) signaling has been proposed in bone remodeling, but the underlying mechanism remains unclear. This study was designed to explore the effect of Wnt-ER signaling during the osteogenic differentiation of bone marrow stromal cells (BMSCs). Rat BMSCs were isolated and identified using flow cytometry and stimulated with Wnt3a. Wnt3a treatment promoted osteogenic differentiation and mineralization of the BMSCs. Meanwhile, Wnt3a enhanced the expression of ERα as well as the canonical Wnt signaling mediator β-catenin and the alternative Wnt signaling effector Yes-associated protein 1 (YAP1). Interestingly, DNA pulldown assay revealed direct binding of transcriptional enhanced associate domain 1 (TEAD1) and lymphoid enhancer binding factor 1 (LEF1), transcriptional partners of YAP1 and β-catenin, respectively, to the promoter region of ERα. In addition, inhibition of TEAD1 and LEF1 suppressed Wnt3-promoted BMSC osteogenic differentiation and blocked Wnt3a-induced ERα expression. Furthermore, an in vivo model of femoral bone defect also supported that Wnt3a facilitated bone healing in an ERα-dependent way. Together, we suggest that Wnt3a promotes the osteogenic activity of BMSCs through YAP1 and β-catenin-dependent activation of ERα, via direct binding of TEAD1 and LEF1 to the ERα promoter.
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Affiliation(s)
- Peiqi Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Lingyi Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Fan Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Wanxi Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengduChina
| | - Yongwen Guo
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of OrthodonticsWest China Hospital of StomatologySichuan UniversityChengduChina
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Dai W, Zheng Y, Li B, Yang F, Chen W, Li Y, Deng Y, Bai D, Shu R. A 3D-printed orthopedic implant with dual-effect synergy based on MoS 2 and hydroxyapatite nanoparticles for tumor therapy and bone regeneration. Colloids Surf B Biointerfaces 2023; 228:113384. [PMID: 37320980 DOI: 10.1016/j.colsurfb.2023.113384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/15/2023] [Accepted: 05/26/2023] [Indexed: 06/17/2023]
Abstract
Treatments for malignant bone tumors are urgently needed to be developed due to the dilemma of precise resection of tumor tissue and subsequent bone defects. Although polyether-ether-ketone (PEEK) has widely attracted attention in the orthopedic field, its bioinertness and poor osteogenic properties significantly restrict its applications in bone tumor treatment. To tackle the daunting issue, we use a hydrothermal technique to fabricate novel PEEK scaffolds modified with molybdenum disulfide (MoS2) nanosheets and hydroxyapatite (HA) nanoparticles. Our dual-effect synergistic PEEK scaffolds exhibit perfect photothermal therapeutic (PTT) property dependent on molybdous ion (Mo2+) concentration and laser power density, superior to conventional PEEK scaffolds. Under near-infrared (NIR) irradiation, the viability of MG63 osteosarcoma cells is significantly reduced by modified PEEK scaffolds, indicating a tumor-killing potential in vitro. Furthermore, the incorporation of HA nanoparticles on the surface of PEEK bolsters proliferation and adherence of MC3T3-E1 cells, boosting mineralization for further bone defect repair. The results of micro-computed tomography (micro-CT) and histological analysis of 4-week treated rat femora demonstrate the preeminent photothermal and osteogenesis capacity of 3D-printed modified scaffolds in vivo. In conclusion, the dual-effect synergistic orthopedic implant with photothermal anticancer property and osteogenic induction activity strikes a balance between tumor treatment and bone development promotion, offering a promising future therapeutic option.
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Affiliation(s)
- Wenyu Dai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China
| | - Yunfei Zheng
- Department of Orthodontics, National Center of Stomatology; National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Peking University School and Hospital of Stomatology, Beijing 100081, China
| | - Bin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China
| | - Fan Yang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China
| | - Wanxi Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China
| | - Yunfei Li
- Department of Biomedical Engineering, The City College of the City University of New York, New York, United States
| | - Yi Deng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China; Department of Mechanical Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China.
| | - Rui Shu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics and Paediatric Dentistry, West China Hospital of Stomatology, School of Chemical Engineering, Sichuan University, Chengdu 610041, China.
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Pan Z, Zhao Y, Wang X, Xie X, Liu M, Zhang K, Wang L, Bai D, Foster LJ, Shu R, He G. Targeting bromodomain-containing proteins: research advances of drug discovery. Mol Biomed 2023; 4:13. [PMID: 37142850 PMCID: PMC10159834 DOI: 10.1186/s43556-023-00127-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/02/2023] [Indexed: 05/06/2023] Open
Abstract
Bromodomain (BD) is an evolutionarily conserved protein module found in 46 different BD-containing proteins (BCPs). BD acts as a specific reader for acetylated lysine residues (KAc) and serves an essential role in transcriptional regulation, chromatin remodeling, DNA damage repair, and cell proliferation. On the other hand, BCPs have been shown to be involved in the pathogenesis of a variety of diseases, including cancers, inflammation, cardiovascular diseases, and viral infections. Over the past decade, researchers have brought new therapeutic strategies to relevant diseases by inhibiting the activity or downregulating the expression of BCPs to interfere with the transcription of pathogenic genes. An increasing number of potent inhibitors and degraders of BCPs have been developed, some of which are already in clinical trials. In this paper, we provide a comprehensive review of recent advances in the study of drugs that inhibit or down-regulate BCPs, focusing on the development history, molecular structure, biological activity, interaction with BCPs and therapeutic potentials of these drugs. In addition, we discuss current challenges, issues to be addressed and future research directions for the development of BCPs inhibitors. Lessons learned from the successful or unsuccessful development experiences of these inhibitors or degraders will facilitate the further development of efficient, selective and less toxic inhibitors of BCPs and eventually achieve drug application in the clinic.
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Affiliation(s)
- Zhaoping Pan
- Department of Dermatology & Venerology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yuxi Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xiaoyun Wang
- Department of Dermatology & Venerology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xin Xie
- College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Mingxia Liu
- Department of Dermatology & Venerology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Kaiyao Zhang
- Department of Dermatology & Venerology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lian Wang
- Department of Dermatology & Venerology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Leonard J Foster
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Rui Shu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
| | - Gu He
- Department of Dermatology & Venerology and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
- Laboratory of Dermatology, Clinical Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Wang P, Li W, Li B, Han X, Bai D, Xue C. Comparison of bracket bonding between two CAD/CAM guided bonding devices: GBD-U vs GBD-B. J Dent 2023; 131:104456. [PMID: 36849067 DOI: 10.1016/j.jdent.2023.104456] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 01/05/2023] [Accepted: 02/15/2023] [Indexed: 03/01/2023] Open
Abstract
OBJECTIVE To compare the bracket bonding accuracy, efficiency, reproducibility, and three-dimensional (3D) printing duration of the computer-aided design/computer-aided manufacturing (CAD/CAM) unilateral contact guided bonding device (GBD-U) and the bilateral contact guided bonding device (GBD-B) in vitro. METHODS Five resin dental model sets were scanned and virtually bonded with brackets. GBD-U and GBD-B were designed and 3D printed for each model. GBD-Us had guide blocks that fit the occlusal sides of the bracket tie-wings, while GBD-Bs had guide arms that fit the occlusal and distal sides of the tie-wings. Five orthodontic residents were recruited to bond brackets on the same 3D-printed copies of resin models in a dental mannequin using GBD-Us and GBD-Bs, respectively. The time for 3D printing of GBDs and bracket bonding was recorded. The linear and angular deviations between the bonded brackets and the virtually bonded ones were measured. RESULTS A total of 50 sets of resin models (1000 brackets/tubes) were bonded. The time for 3D printing and bracket bonding was shorter for GBD-Us (41.96 mins/6.38 mins) than for GBD-Bs (78.04 mins/7.20 mins). In both devices, 100% linear deviations and over 95% angular deviations were below 0.5 mm or 2°, respectively. Deviations in the mesiodistal dimension, torque, angulation, and rotation were significantly lower in the GBD-U group (P<0.01). High inter-operator reproducibility of bracket bonding was confirmed for both devices. CONCLUSION GBD-U was more time-efficient in 3D printing. Both GBDs showed clinically acceptable accuracy, whereas GBD-U had higher bonding accuracy in the mesiodistal dimension, torque, angulation, and rotation than GBD-B. CLINICAL SIGNIFICANCE CAD/CAM GBD-U provides high bracket bonding accuracy in a time-efficient manner and has the potential to be clinically applied.
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Affiliation(s)
- Peiqi Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University Chengdu 610041, China
| | - Wanyan Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University Chengdu 610041, China
| | - Bin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University Chengdu 610041, China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University Chengdu 610041, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University Chengdu 610041, China.
| | - Chaoran Xue
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University Chengdu 610041, China.
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Gu R, Wang YP, Ye WS, Shao JY, Xue CR, Bai D. [Study on long-term morphological stability of three-dimensional-printed photosensitive resin dental models]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:271-276. [PMID: 36854429 DOI: 10.3760/cma.j.cn112144-20220529-00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Objective: To study the long-term morphological stability of three-dimensional (3D) printed photosensitive resin dental models under natural light and dark conditions. Methods: Eighty sets of resin dental models were made by the desktop 3D printer from one digital standard model set, and randomly divided into two groups, namely natural light group (40 sets) and dark group (40 sets). All resin models were stored in sealed bags, with 4 model sets from each group randomly collected after 1, 3, 5, 7, 14, 21, 28, 40, 60, or 90 days of storage and 3D scanned using an optical model scanner. The root-mean-square error (RMSE) was calculated to represent the mean deviation of the difference between the digital standard model and the scanned resin model. Meanwhile, three linear indexes (the width between the canines, the width between the first molars, and the arch length) of the resin dental model were measured and compared with the corresponding values of the standard model. RMSE and the linear measurements between the digital standard model and the scanned resin models were compared between the natural light group and the dark group and among models from different time points. Results: Compared with the digital standard model, the RMSE values of 96.9% (155/160) resin dental models were less than 0.1 mm within 90-day storage. Also, at the same time point, there was no significant difference in the RMSE between the natural light group and the dark group (P>0.05). 75.0% (360/480) of the absolute values of the linear differences (differences in inter-canine width, intra-molar width, and arch length between the digital standard model and the scanned resin model) were within 0.2 mm, and about 0.1% (3/480) of the linear differences were greater than 0.5 mm, and all of the linear differences were within 0.6 mm. Conclusions: 3D-printed resin dental models can be stored stably under natural light and dark conditions for a long time.
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Affiliation(s)
- R Gu
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 6 10041, China
| | - Y P Wang
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 6 10041, China
| | - W S Ye
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 6 10041, China
| | - J Y Shao
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 6 10041, China
| | - C R Xue
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 6 10041, China
| | - D Bai
- Department of Orthodontics, West China Hospital of Stomatology, Sichuan University & State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Chengdu 6 10041, China
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Li B, Xiang X, Huang G, Wang P, Xue C, Han X, Bai D, Xu H. A coupled-lines system to determine the anteroposterior position of maxillary central incisors for smiling profile esthetics. Angle Orthod 2023:490885. [PMID: 36806479 DOI: 10.2319/073022-529.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 12/01/2022] [Indexed: 02/23/2023] Open
Abstract
OBJECTIVES To develop a coupled-lines system to determine the anteroposterior position of maxillary central incisors (U1) for smiling profile esthetics. MATERIALS AND METHODS Thirty Asian females with ordinary and good facial harmony were selected as the study sample and the control sample, respectively. Three-dimensional facial images and 45°- and 90°-angled profiles were collected. The anteroposterior relationships between U1 and upper- and mid-facial soft tissue landmarks were measured. By morphing photos of the study sample, two artificial images were created to represent the well-balanced 45°- and 90°-angled profiles and were further processed with combined variations of soft tissue subnasale (SSn)-Glabella and the mid-point of facial axial points of the bilateral central incisor (mFA)-SSn distances. Esthetic assessments were performed on these images by layperson (n = 94) and orthodontist (n = 94) raters. RESULTS Both upper- and mid-facial soft tissue landmarks were indispensable in assessing anteroposterior positions of U1 for well-balanced smiling profiles. As assessed in 45°- and 90°-angled profiles, the most esthetically sensitive parameters were mFA-Glabella and mFA-SSn distances. A coupled-lines system was constructed, comprising the Glabella and SSn vertical lines. In smiling profiles with optimal esthetics, the mFA point was at 2 to 5 mm posterior to the Glabella vertical and concomitantly 4 to 7 mm posterior to the SSn vertical, as perceived by orthodontists. Laypersons gave a wider range for mFA-Glabella distances, at 2 to 6 mm. CONCLUSIONS The coupled-lines system could serve as a reliable reference for determining esthetically optimal anteroposterior positions of U1 for female facial profiles.
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Xiao X, Liu Z, Shu R, Wang J, Zhu X, Bai D, Lin H. Periodontal bone regeneration with a degradable thermoplastic HA/PLCL bone graft. J Mater Chem B 2023; 11:772-786. [PMID: 36444735 DOI: 10.1039/d2tb02123d] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Strategic bone grafts are required to regenerate periodontal bone defects owing to limited self-healing. Current bioceramic particle or deproteinized bovine bone (DBB) products are not able to ideally meet clinical requirements, such as insufficient operability and slow degradation rates. Herein, a strong-interacted bone graft was designed and synthesized by modifying hydroxyapatite (HA) with a lactide-caprolactone copolymer (PLCL) to improve component homogeneity and mechanical properties. The physical-chemical analysis indicated that HA particles were homogenously distributed in HA/PLCL bone grafts, possessed outstanding thermoplasticity, and facilitated clinic operability and initial mechanical support. The in vitro study suggested that HA/PLCL bone graft degraded in a spatiotemporal model. Micropores were formed on the non-porous surface at the beginning, and interconnected porous structures were gradually generated. Furthermore, HA/PLCL bone grafts exhibited excellent biocompatibility and osteogenic ability as revealed in vitro cell culture and in vivo animal experiments. When applied to rat periodontal bone defects, the HA/PLCL bone graft showed a non-inferior bone regeneration compared to the commercial DBB. This study proposes a potential bone graft for periodontal bone repair with thermoplastic, spatiotemporal degraded, and osteogenic characteristics.
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Affiliation(s)
- Xueling Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Zhanhong Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China. .,College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Rui Shu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Jiangyue Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China. .,Department of Orthodontics, Shanghai Stomatological Hospital & School of Stomatology, Fudan University, Shanghai 200001, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China. .,College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610064, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China.
| | - Hai Lin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, China. .,College of Biomedical Engineering, Sichuan University, Chengdu, Sichuan 610064, China
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Xing L, Dong W, Chen Y, Dai W, Xiao X, Liu Z, Zhang X, Bai D, Xu H. Fibroblast ferroptosis is involved in periodontitis-induced tissue damage and bone loss. Int Immunopharmacol 2023; 114:109607. [PMID: 36700777 DOI: 10.1016/j.intimp.2022.109607] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 12/02/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Periodontitis causes inflammatory destructions of tooth-supporting tissue and constitutes a significant burden on public health. Failing to reserve the tissue damage and bone loss by any of the currently available therapies has left periodontitis uncurable thus far. Understanding the molecular mechanism in the inflammatory process is crucial to elucidating the pathogenesis and enlightening new therapeutic strategies for periodontitis. This study was to investigate whether and how ferroptosis, a newly-discovered form of cell death, was involved in the pathogenesis of periodontitis. Healthy and periodontitis human gingiva samples were collected and ligature-induced periodontitis murine models were constructed to investigate the role of ferroptosis in periodontitis. Single-cell RNA sequencing data was analyzed to identify the cell type that underwent ferroptosis. The susceptibility of human gingival fibroblasts to ferroptosis was investigated by in vitro cell cultures. We found that gingival fibroblasts undergo ferroptosis in periodontitis, and that periodontitis-induced tissue damage and bone loss were alleviated by inhibition of ferroptosis. Periodontitis-induced pro-inflammatory immune responses was featured by profound elevation of fibroblast-derived Interleukin-6, which was attenuated by ferroptosis inhibition. These results indicated fibroblast ferroptosis as a new clue to unveiling the cellular and molecular basis for periodontitis-induced tissue damage. Involvement of ferroptosis/Interleukin-6 signaling in the pathogenic process suggested a potential target for immunopharmacological approaches to curing periodontitis.
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Affiliation(s)
- Lu Xing
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Wei Dong
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yilin Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Wenyu Dai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Xueling Xiao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Zhongyu Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Xiaoqi Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Li B, Shu R, Dai W, Yang F, Xu H, Shi X, Li Y, Bai D, Yang W, Deng Y. Bioheterojunction-Engineered Polyetheretherketone Implants With Diabetic Infectious Micromilieu Twin-Engine Powered Disinfection for Boosted Osteogenicity. Small 2022; 18:e2203619. [PMID: 36084239 DOI: 10.1002/smll.202203619] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Diabetic infectious micromilieu (DIM) leads to a critical failure rate of osseointegration by virtue of two main peculiarities: high levels of topical glucose and inevitable infection. To tackle the daunting issue, a bioheterojunction-engineered orthopedic polyetheretherketone (PEEK) implant consisting of copper sulfide/graphene oxide (CuS/GO) bioheterojunctions (bioHJs) and glucose oxidase (GOx) is conceived and developed for DIM enhanced disinfection and boosted osseointegration. Under hyperglycemic micromilieu, GOx can convert surrounding glucose into hydrogen peroxide (H2 O2 ). Then, upon infectious micromilieu, the bioHJs enable the catalyzation of H2 O2 to highly germicidal hydroxyl radical (·OH). As a result, the engineered implants massacre pathogenic bacteria through DIM twin-engine powered photo-chemodynamic therapy in vitro and in vivo. In addition, the engineered implants considerably facilitate cell viability and osteogenic activity of osteoblasts under a hyperglycemic microenvironment via synergistic induction of copper ions (Cu2+ ) and GO. In vivo studies using bone defect models of diabetic rats at 4 and 8 weeks further authenticate that bioHJ-engineering PEEK implants substantially elevate their osseointegration through biofilm elimination and vascularization, as well as macrophage reprogramming. Altogether, the present study puts forward a tactic that arms orthopedic implants with DIM twin-engine powered antibacterial and formidable osteogenic capacities for diabetic stalled osseointegration.
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Affiliation(s)
- Bin Li
- College of Biomedical Engineering, School of Chemical Engineering, West China Hospital of Stomatology, State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610065, P. R. China
| | - Rui Shu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, P. R. China
| | - Wenyu Dai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, P. R. China
| | - Fan Yang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, P. R. China
| | - Hui Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, P. R. China
| | - Xiuyuan Shi
- Department of Materials, Imperial College London, London, SW7 2AZ, UK
| | - Yunfei Li
- Department of Biomedical Engineering, The City College of the City University of New York, New York, NY, 10031, USA
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, P. R. China
| | - Weizhong Yang
- College of Biomedical Engineering, School of Chemical Engineering, West China Hospital of Stomatology, State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610065, P. R. China
| | - Yi Deng
- College of Biomedical Engineering, School of Chemical Engineering, West China Hospital of Stomatology, State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, 610065, P. R. China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, P. R. China
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, 999077, P. R. China
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21
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Wang P, Chen J, Wang X, Bai D, Guo Y. Orthodontic correction of a skeletal Class II malocclusion with severe gummy smile by total intrusion of the maxillary dentition. Am J Orthod Dentofacial Orthop 2022; 162:777-792. [PMID: 35985965 DOI: 10.1016/j.ajodo.2021.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 05/01/2021] [Accepted: 05/01/2021] [Indexed: 11/16/2022]
Abstract
A 22-year-old woman visited the hospital complaining of lip protrusion, crowded teeth, and a gummy smile. The clinical examination showed a convex profile with a hyperdivergent mandible and a severe gummy smile in both anterior and posterior regions. The unstable mandible position was considered during treatment planning, and a targeted mechanic system was carefully designed. Temporary skeletal anchorage devices in the posterior dental region and a transpalatal arch were introduced as anchorage for the intrusion of the entire maxillary dentition and controlled retraction of the anterior teeth. Based on effective and simple mechanisms, we successfully eliminated the severe gummy smile and improved the facial aesthetics with the aid of conventional appliances. This approach provided an alternative option to orthognathic surgery or bulky invasive miniscrews for treatment of skeletal Class II malocclusion with severe gummy smile.
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Affiliation(s)
- Peiqi Wang
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Jiajun Chen
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xinghai Wang
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Yongwen Guo
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
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22
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Li B, Wang P, Xu H, Gu R, Han X, Bai D, Xue C. Effects of offset design on the accuracy of bracket placement with a guided bonding device. J Orofac Orthop 2022:10.1007/s00056-022-00424-4. [PMID: 36102945 DOI: 10.1007/s00056-022-00424-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 08/01/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND This study aimed to evaluate the effects of offset design on the accuracy of bracket placement for computer-aided design and computer-aided manufacturing (CAD/CAM)-guided bonding devices (GBDs) in vitro. METHODS Eight dental models were selected. Seven types of GBDs were designed and three-dimensionally (3D) printed for each model, including one without any offset and the other six with translation offsets (TF) and expansion offsets (EF) of 0.05, 0.10, and 0.15 mm, respectively. After the brackets were bonded on the models using the different GBDs in vitro, linear and angular deviations of the bracket positions were evaluated. RESULTS In total, 56 GBDs were printed, and 784 brackets were bonded using the GBDs. No misfit between the dentitions and the devices was found during the bonding process. With increasing offset, more brackets were gingivally positioned with the frequencies ranging from 61.61 to 76.79% for the TF groups and from 58.93 to 78.57% for the EF groups. The vertical deviations of the brackets increased from 0.100 to 0.168 mm and from 0.117 to 0.150 mm in the TF and the EF group, respectively, as offset increased. No statistically significant difference was found in the vertical deviation between most of the TF and EF groups with the same offset value (p > 0.05). With respect to angulation, the mean absolute deviations were 0.881, 1.083, and 1.029° in the 0.05-mm, 0.10-mm, and 0.15-mm EF groups, respectively, which were greater than those in the corresponding TF groups (0.799, 0.847, and 0.806°). Similarly, with increasing offset, the mean absolute deviations for rotation in the EF groups (0.847, 0.998, and 1.138°) were greater than those in the TF groups (0.853, 0.946, and 0.896°). Compared with the 0.15-mm TF group, greater angulations (p < 0.05) and rotations (p < 0.01) were found in the 0.15-mm EF group. CONCLUSIONS Offset designs influenced the precision of vertical bracket placement with GBDs. Due to the smaller deviations in angulation and rotation of bracket placement, TF is preferred over EF for GBDs. Moreover, the differences between TF and EF also need to be considered in the design of other dental CAD/CAM devices.
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Affiliation(s)
- Bin Li
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Peiqi Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Rui Gu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chaoran Xue
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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23
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Wang LD, Li X, Song XK, Zhao FY, Zhou RH, Xu ZC, Liu AL, Li JL, Li XZ, Wang LG, Zhang FH, Zhu XM, Li WX, Zhao GZ, Guo WW, Gao XM, Li LX, Wan JW, Ku QX, Xu FG, Zhu AF, Ji HX, Li YL, Ren SL, Zhou PN, Chen QD, Bao SG, Gao HJ, Yang JC, Wei WM, Mao ZZ, Han ZW, Chang YF, Zhou XN, Han WL, Han LL, Lei ZM, Fan R, Wang YZ, Yang JJ, Ji Y, Chen ZJ, Li YF, Hu L, Sun YJ, Chen GL, Bai D, You D. [Clinical characteristics of 272 437 patients with different histopathological subtypes of primary esophageal malignant tumors]. Zhonghua Nei Ke Za Zhi 2022; 61:1023-1030. [PMID: 36008295 DOI: 10.3760/cma.j.cn112138-20210929-00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To characterize the histopathological subtypes and their clinicopathological parameters of gender and onset age by common, rare and sparse primary esophageal malignant tumors (PEMT). Methods: A total of 272 437 patients with PEMT were enrolled in this study, and all of the patients were received radical surgery. The clinicopathological information of the patients was obtained from the database established by the State Key Laboratory of Esophageal Cancer Prevention & Treatment from September 1973 to December 2020, which included the clinical treatment, pathological diagnosis and follow-up information of esophagus and gastric cardia cancers. All patients were diagnosed and classified by the criteria of esophageal tumor histopathological diagnosis and classification (2019) of the World Health Organization (WHO). The esophageal tumors, which were not included in the WHO classification, were analyzed separately according to the postoperative pathological diagnosis. The χ2 test was performed by the SPSS 25.0 software on count data, and the test standard α=0.05. Results: A total of 32 histopathological types were identified in the enrolled PEMT patients, of which 10 subtypes were not included in the WHO classification. According to the frequency, PEMT were divided into common (esophageal squamous cell carcinoma, ESCC, accounting for 97.1%), rare (esophageal adenocarcinoma, EAC, accounting for 2.3%) and sparse (mainly esophageal small cell carcinoma, malignant melanoma, etc., accounting for 0.6%). All the common, rare, and sparse types occurred predominantly in male patients, and the gender difference of rare type was most significant (EAC, male∶ female, 2.67∶1), followed with common type (ESCC, male∶ female, 1.78∶1) and sparse type (male∶ female, 1.71∶1). The common type (ESCC) mainly occurred in the middle thoracic segment (65.2%), while the rare type (EAC) mainly occurred in the lower thoracic segment (56.8%). Among the sparse type, malignant melanoma and malignant fibrous histiocytoma were both predominantly located in the lower thoracic segment (51.7%, 66.7%), and the others were mainly in the middle thoracic segment. Conclusion: ESCC is the most common type among the 32 histopathological types of PEMT, followed by EAC as the rare type, and esophageal small cell carcinoma and malignant melanoma as the major sparse type, and all of which are mainly occur in male patients. The common type of ESCC mainly occur in the middle thoracic segment, while the rare type of EAC mainly in the lower thoracic segment. The mainly sparse type of malignant melanoma and malignant fibrous histiocytoma predominately occur in the lower thoracic segment, and the remaining sparse types mainly occur in the middle thoracic segment.
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Affiliation(s)
- L D Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X Li
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - X K Song
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - F Y Zhao
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - R H Zhou
- Department of Thoracic Surgery, Anyang Tumor Hospital, Anyang 455000, China
| | - Z C Xu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - A L Liu
- Department of Oncology, Linzhou Tumor Hospital, Linzhou 456550, China
| | - J L Li
- Department of Oncology, Linzhou Tumor Hospital, Linzhou 456550, China
| | - X Z Li
- Department of Pathology, Linzhou Esophageal Cancer Hospital, Linzhou 456592, China
| | - L G Wang
- Department of Oncology, Linzhou People's Hospital, Linzhou 456550, China
| | - F H Zhang
- Department of Thoracic Surgery, Xinxiang Central Hospital, Xinxiang 453000, China
| | - X M Zhu
- Department of Pathology, Xinxiang Central Hospital, Xinxiang 453000, China
| | - W X Li
- Department of Pathology, Cixian People's Hospital, Handan 056599, China
| | - G Z Zhao
- Department of Pathology, the First Affiliated Hospital of Xinxiang Medicine University, Xinxiang 453100, China
| | - W W Guo
- Department of Oncology, Linzhou Tumor Hospital, Linzhou 456550, China
| | - X M Gao
- Department of Oncology, Linzhou People's Hospital, Linzhou 456550, China
| | - L X Li
- Xinxiang Key Laboratory for Molecular Therapy of Cancer, Xinxiang Medical University, Xinxiang 453003, China
| | - J W Wan
- Department of Oncology, Nanyang Central Hospital, Nanyang 473009, China
| | - Q X Ku
- Department of Endoscopy, the Second Affiliated Hospital of Nanyang Medical College, Nanyang 473000, China
| | - F G Xu
- Department of Oncology, the First People's Hospital of Nanyang, Nanyang 473002, China
| | - A F Zhu
- Department of Oncology, the First People's Hospital of Shangqiu, Shangqiu 476000, China
| | - H X Ji
- Department of Clinical Laboratory, the Affiliated Heping Hospital of Changzhi Medical College, Changzhi 046000, China
| | - Y L Li
- Department of Pathology, the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - S L Ren
- Department of Pathology, the Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - P N Zhou
- Department of Pathology, Henan People's Hospital, Zhengzhou 450003, China
| | - Q D Chen
- Department of Thoracic Surgery, Henan Tumor Hospital, Zhengzhou 450003, China
| | - S G Bao
- Department of Oncology, Anyang District Hospital, Anyang 455002, China
| | - H J Gao
- Department of Oncology, the First Affiliated Hospital, Henan University of Science and Technology, Luoyang 471003, China
| | - J C Yang
- Department of Pathology, Anyang Tumor Hospital, Anyang 455000, China
| | - W M Wei
- Department of Thoracic Surgery, Linzhou Esophageal Cancer Hospital, Linzhou 456592, China
| | - Z Z Mao
- Department of Thoracic Surgery, Cancer Hospital of the University of Chinese Academy of Sciences, Hangzhou 310005, China
| | - Z W Han
- Department of Pathology, Zhenping County People's Hospital, Nanyang 474250, China
| | - Y F Chang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - X N Zhou
- Department of Gastroenterology, the Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - W L Han
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - L L Han
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Z M Lei
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - R Fan
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y Z Wang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - J J Yang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y Ji
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Z J Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y F Li
- Department of Gastroenterology, the Third People's Hospital of Huixian, Huixian 453600, China
| | - L Hu
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Y J Sun
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - G L Chen
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - D Bai
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
| | - Duo You
- State Key Laboratory of Esophageal Cancer Prevention & Treatment and Henan Key Laboratory for Esophageal Cancer Research of the First Affiliated Hospital, Zhengzhou University, Zhengzhou 450052, China
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Wang P, Xu H, Gu R, Zhu L, Bai D, Xue C. Integrating maxillary dentition and 3D facial photo using a modified CAD/CAM facebow. BMC Oral Health 2022; 22:365. [PMID: 36028874 PMCID: PMC9419386 DOI: 10.1186/s12903-022-02394-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/16/2022] [Indexed: 11/29/2022] Open
Abstract
Background Accurate integration of the dentitions with the face is essential in dental clinical practice. Here we introduce a noninvasive and efficient protocol to integrate the digitized maxillary dentition with the three-dimensional (3D) facial photo using a prefabricated modified computer-aided design/computer-aided manufacture (CAD/CAM) facebow. Methods To integrate the maxillary dentition with the 3D facial photo, the CAD/CAM facebow protocol was applied to 20 patients by taking a series of 3D facial photos in the clinic and integrating them in the laboratory. The integration accuracy of this protocol was compared with that of a valid 3D computed tomography (CT)-aided protocol concerning translational deviations of the landmarks representing maxillary incisors and maxillary first molars as well as the rotational deviation of the maxillary dentition. The intra- and inter-observer reproducibility was assessed, and the time of clinical operation and laboratory integration was recorded. Results This facebow-aided protocol generated 3D fused images with colored faces and high-resolution dentitions, and showed high reproducibility. Compared with the well-established CT-aided protocol, the translational deviations ranged from 0 to 1.196 mm, with mean values ranging from 0.134 to 0.444 mm, and a relatively high integration error was found in the vertical dimension (Z) with a mean ± standard deviation (SD) of 0.379 ± 0.282 mm. Meanwhile, the rotational deviations ranged from 0.020 to 0.930°, with mean values less than 1°, and the most evident deviation was seen in pitch rotation with a mean ± SD of 0.445 ± 0.262°. The workflow took 4.34 ± 0.19 min (mins) for clinical operation and 11.23 ± 0.29 min for laboratory integration. Conclusion The present radiation-free protocol with the modified CAD/CAM facebow provided accurate and reproducible transfer of the digitized maxillary dentition to the 3D facial photo with high efficiency.
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Affiliation(s)
- Peiqi Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Rui Gu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Liwei Zhu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Chaoran Xue
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China.
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25
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Wang P, Sun X, Miao Q, Mi H, Cao M, Zhao S, Wang Y, Shu Y, Li W, Xu H, Bai D, Zhang Y. Novel genetic associations with five aesthetic facial traits: A genome-wide association study in the Chinese population. Front Genet 2022; 13:967684. [PMID: 36035146 PMCID: PMC9411802 DOI: 10.3389/fgene.2022.967684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 06/27/2022] [Indexed: 11/17/2022] Open
Abstract
Background: The aesthetic facial traits are closely related to life quality and strongly influenced by genetic factors, but the genetic predispositions in the Chinese population remain poorly understood. Methods: A genome-wide association studies (GWAS) and subsequent validations were performed in 26,806 Chinese on five facial traits: widow’s peak, unibrow, double eyelid, earlobe attachment, and freckles. Functional annotation was performed based on the expression quantitative trait loci (eQTL) variants, genome-wide polygenic scores (GPSs) were developed to represent the combined polygenic effects, and single nucleotide polymorphism (SNP) heritability was presented to evaluate the contributions of the variants. Results: In total, 21 genetic associations were identified, of which ten were novel: GMDS-AS1 (rs4959669, p = 1.29 × 10−49) and SPRED2 (rs13423753, p = 2.99 × 10−14) for widow’s peak, a previously unreported trait; FARSB (rs36015125, p = 1.96 × 10−21) for unibrow; KIF26B (rs7549180, p = 2.41 × 10−15), CASC2 (rs79852633, p = 4.78 × 10−11), RPGRIP1L (rs6499632, p = 9.15 × 10−11), and PAX1 (rs147581439, p = 3.07 × 10−8) for double eyelid; ZFHX3 (rs74030209, p = 9.77 × 10−14) and LINC01107 (rs10211400, p = 6.25 × 10−10) for earlobe attachment; and SPATA33 (rs35415928, p = 1.08 × 10−8) for freckles. Functionally, seven identified SNPs tag the missense variants and six may function as eQTLs. The combined polygenic effect of the associations was represented by GPSs and contributions of the variants were evaluated using SNP heritability. Conclusion: These identifications may facilitate a better understanding of the genetic basis of features in the Chinese population and hopefully inspire further genetic research on facial development.
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Affiliation(s)
- Peiqi Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Xinghan Sun
- Genomic & Phenomic Data Center, Chengdu 23Mofang Biotechnology Co., Ltd, Chengdu, China
- Department of Biobank, Chengdu 23Mofang Biotechnology Co., Ltd, Chengdu, China
| | - Qiang Miao
- Department of Laboratory Medicine/Research Center of Clinical Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Mi
- Department of Biobank, Chengdu 23Mofang Biotechnology Co., Ltd, Chengdu, China
| | - Minyuan Cao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Shan Zhao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yiyi Wang
- Department of Dermatology, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Shu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Li
- Department of Dermatology, Rare Disease Center, West China Hospital, Sichuan University, Chengdu, China
| | - Heng Xu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- Department of Laboratory Medicine/Research Center of Clinical Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Ding Bai, ; Yan Zhang,
| | - Yan Zhang
- Lung Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- State Key Laboratory of Biotherapy, Department of Thoracic Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Ding Bai, ; Yan Zhang,
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Dong X, Feng J, Li B, Bai D, Xu H. Inhibition of osteoclastogenesis by interleukin-33 administration in the periodontal ligament under mechanical loading. J Periodontal Res 2022; 57:1003-1013. [PMID: 35930702 DOI: 10.1111/jre.13039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 06/12/2022] [Accepted: 07/13/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND AND OBJECTIVES The molecular mechanisms mediating external root resorption are poorly understood. Interleukin-33 (IL-33) expression increased remarkably in the periodontal ligament (PDL) under orthodontic loading. The IL-33-driven responses are delicately cell type- and tissue context-dependent. It is unknown how IL-33 act on osteoclastogenesis in the context of root surface. This study aimed to investigate the effect of IL-33 on osteoclastogenesis in the PDL under mechanical loading. MATERIALS AND METHODS C57BL/6J mice were treated with injections of phosphate buffer saline (PBS) or recombinant mouse IL-33 (rmIL-33, 6 μl, 30 μg/ml), and subjected to models of orthodontic tooth movement. Tartrated resistant acid phosphates (TRAP)-positive cells and IL-33 expressions were examined in the PDL. IL-33 release from human PDL cells (hPDLCs) was detected by ELISA. Cementoblast-like (OCCM-30) cells were cultured in the presence of rmIL-33 to examine the release of osteoclast-regulatory proteins. The effects of rmIL-33 on osteoclastogenesis were examined in vitro in cultures of bone marrow macrophages (BMMs) and in BMMs-OCCM-30 cocultures. Expressions of osteoclast-specific or -related genes and proteins were investigated in BMMs-OCCM-30 cocultures treated with or without rmIL-33, in the presence or absence of granulocyte-macrophage colony-stimulating factor (GM-CSF) neutralizing antibody. RESULTS Interleukin-33 expressions were upregulated in the PDL under orthodontic loading. Static compressive force enhanced expression and release of IL-33 from hPDLCs. Administration of rmIL-33 resulted in reduced number of TRAP-positive cells in the PDL, and inhibited osteoclast differentiation from BMMs in vitro. OCCM-30 cells had varied osteoprotegerin (OPG) / receptor activator for nuclear factor-κB ligand (RANKL) secretion and increased release of GM-CSF under rmIL-33 stimulation. Treatment with rmIL-33 in BMMs-OCCM-30 cocultures resulted in inhibited differentiation and decreased activity of osteoclasts, and these effects were partially reversed by GM-CSF neutralizing antibody. CONCLUSIONS Interleukin-33 inhibits osteoclastogenesis in the PDL under orthodontic loading. The anti-osteoclastogenic effects were mediated partly by directly affecting osteoclast precursors and partly by cementoblast-mediated release of GM-CSF.
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Affiliation(s)
- Xiaomeng Dong
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie Feng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China School & Hospital of Stomatology, Sichuan University, Chengdu, China
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27
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Zhao Z, Jin Z, Bai Y, Fang B, Bai D, Li W, He H, Hu M, Liu Y, Chen L, Song J, Cao Y, Li Y, Shu R. Core scientific issues of orthodontic tooth movement: position objective, efficiency, and accuracy. Hua Xi Kou Qiang Yi Xue Za Zhi 2022; 40:371-376. [PMID: 38596951 PMCID: PMC9396425 DOI: 10.7518/hxkq.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/20/2022] [Indexed: 04/11/2024]
Abstract
Although the current technical systems of orthodontic tooth movement are practically mature, a noticeable gap still exists between the overall treatment results and the expectations. According to literature review, orthodontic tooth movement involves three core scientific issues, i.e., position objective, efficiency, and accuracy. Research concerning these three issues is the key to further improve orthodontic treatment outcomes and promote progress of the subject orthodontics.
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Affiliation(s)
- Zhihe Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zuolin Jin
- Dept. of Orthodontics, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Yuxing Bai
- Dept. of Orthodontics, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Bing Fang
- Dept. of Orthodontics, The Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Weiran Li
- National Engineering Research Center for Oral Biomaterials and Digital Diagnostic Equipment & Dept. of Orthodontics, School & Hospital of Stomatology, Peking University, Beijing 100081, China
| | - Hong He
- Dept. of Orthodontics, School of Stomatology, Wuhan University, Wuhan 430079, China
| | - Min Hu
- Dept. of Orthodontics, Hospital of Stomatology, Jilin University, Changchun 130021, China
| | - Yuehua Liu
- Dept. of Orthodontics, School of Stomatology, Fudan University & Shanghai Stomatological Hospital, Shanghai 200001, China
| | - Lili Chen
- Dept. of Orthodontics, School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jinlin Song
- Chongqing Key Laboratory of Oral Diseases and Biomedicine, Chongqing Key Laboratory of Oral Biomedical Engineering & Dept. of Orthodontics, School & Hospital of Stomatology, Chongqing Medical University, Chongqing 401147, China
| | - Yang Cao
- Dept. of Orthodontics, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yu Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Rui Shu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Pediatric Stomatology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Wang Y, Wang P, Xiang X, Xu H, Tang Y, Zhou Y, Bai D, Xue C. Effect of occlusal coverage depths on the precision of 3D-printed orthognathic surgical splints. BMC Oral Health 2022; 22:218. [PMID: 35655203 PMCID: PMC9161535 DOI: 10.1186/s12903-022-02247-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/23/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Precise orthognathic surgical splints are important in surgical-orthodontic treatment. This study aimed to propose a standardized protocol for three-dimensional (3D)-printed splints and assess the precision of splints with different occlusal coverage on the dentition (occlusal coverage depth, OCD), thus optimizing the design of 3D-printed splints to minimize the seemingly unavoidable systematic errors. METHODS Resin models in optimal occlusion from 19 patients were selected and scanned. Intermediate splints (ISs) and final splints (FSs) with 2-mm, 3-mm, 4-mm, and 5-mm OCDs were fabricated and grouped as IS-2, IS-3, IS-4, IS-5, FS-2, FS-3, FS-4, and FS-5, respectively. The dentitions were occluded with each splint and scanned as a whole to compare with the original occlusion. Translational and rotational deviations of the lower dentition and translational deviations of the landmarks were measured. RESULTS For vertical translation, the lower dentitions translated inferiorly to the upper dentition in most of the splints, and the translation increased as OCD got larger. Vertical translations of the dentitions in 89.47% of IS-2, 68.42% of IS-3, 42.11% of IS-4, 10.53% of IS-5, 94.74% of FS-2, 63.16% of FS-3, 26.32% of FS-4, and 21.05% of FS-5 splints were below 1 mm, respectively. For pitch rotation, the lower dentitions rotated inferiorly and posteriorly in most groups, and the rotation increased as OCD got larger. Pitch rotations of the dentitions in 100% of IS-2, 89.47% of IS-3, 57.89% of IS-4, 52.63% of IS-5, 100.00% of FS-2, 78.95% of FS-3, 52.63% of FS-4, and 47.37% of FS-5 splints were below 2°, respectively. On the other hand, the transversal and sagittal translations, roll and yaw rotations of most groups were clinically acceptable (translation < 1 mm and rotation < 2°). The deviations of ISs and FSs showed no statistical significance at all levels of coverage (P > 0.05). CONCLUSIONS A protocol was proposed to generate 3D-printed ISs and FSs with normalized basal planes and standardized OCDs. Deviations of the ISs and FSs were more evident in the vertical dimension and pitch rotation and had a tendency to increase as the OCD got larger. ISs and FSs with both 2-mm and 3-mm OCD are recommendable regarding the precision relative to clinical acceptability. However, considering the fabrication, structural stability, and clinical application, ISs and FSs with 3-mm OCD are recommended for accurate fitting.
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Affiliation(s)
- Yipeng Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Peiqi Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Xiang Xiang
- School of Artificial Intelligence and Automation, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Hui Xu
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Yuting Tang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Yumeng Zhou
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China
| | - Chaoran Xue
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases and Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, No. 14, 3rd Section of Renmin Nan Road, Chengdu, 610041, China.
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Deng Y, Shi J, Chan YK, Bai D, Shu R, Shi X, Li Y, Li L, Yang X, Yang W. Heterostructured Metal-Organic Frameworks/Polydopamine Coating Endows Polyetheretherketone Implants with Multimodal Osteogenicity and Photoswitchable Disinfection. Adv Healthc Mater 2022; 11:e2200641. [PMID: 35521819 DOI: 10.1002/adhm.202200641] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/12/2022] [Indexed: 02/05/2023]
Abstract
Clinically, bacteria-induced contagion and insufficient osseointegrative property inevitably elicit the failure of orthopedic implants. Herein, a heterostructured coating consisting of simvastatin (SIM)-laden metal-organic frameworks and polydopamine nanolayers is created on a porous bioinert polyetheretherketone implant. The heterostructured coating significantly promotes cytocompatibility and osteogenic differentiation through multimodal osteogenicity mechanisms of zinc ion (Zn2+ ) therapy, SIM drug therapy, and surface micro-/nano-topological stimulation. Under the illumination of near-infrared (NIR) light, singlet oxygen (1 O2 ) and local hyperthermia are produced; besides, NIR light dramatically accelerates the release of Zn2+ ions from heterostructured coatings. Gram-positive and -negative bacteria are effectively eradicated by the synergy of photothermal/photodynamic effects and photo-induced accelerated delivery of Zn2+ ions. The superior osteogenicity and osseointegration, as well as photoswitchable disinfection controlled by NIR light are corroborated via in vivo results. This work highlights the great potential of photoresponsive heterostructured orthopedic implants in treatment of the noninvasive bone reconstruction of bacteria-associated infectious tissues through multimodal phototherapy and photoswitchable ion-therapy.
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Affiliation(s)
- Yi Deng
- College of Biomedical Engineering School of Chemical Engineering Sichuan University Chengdu 610065 China
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
- Department of Mechanical Engineering The University of Hong Kong Hong Kong 999077 China
| | - Jiacheng Shi
- College of Biomedical Engineering School of Chemical Engineering Sichuan University Chengdu 610065 China
| | - Yau Kei Chan
- Department of Ophthalmology The University of Hong Kong Hong Kong 999077 China
| | - Ding Bai
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Disease Department of Orthodontics and Pediatrics West China Hospital of Stomatology Sichuan University Chengdu 610064 China
| | - Rui Shu
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Disease Department of Orthodontics and Pediatrics West China Hospital of Stomatology Sichuan University Chengdu 610064 China
| | - Xiuyuan Shi
- Department of Materials Imperial College London London SW7 2AZ UK
| | - Yunfei Li
- Department of Biomedical Engineering The City College of City University of New York New York NY 10031 USA
| | - Limei Li
- Science and Technology Achievement Incubation Center Kunming Medical University Kunming 650500 China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials College of Biomedical Engineering Sichuan University Chengdu 610064 China
| | - Weizhong Yang
- College of Biomedical Engineering School of Chemical Engineering Sichuan University Chengdu 610065 China
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30
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Liu Z, Chen T, Zhang S, Yang T, Gong Y, Deng HW, Bai D, Tian W, Chen Y. Discovery and functional assessment of a novel adipocyte population driven by intracellular Wnt/β-catenin signaling in mammals. eLife 2022; 11:77740. [PMID: 35503096 PMCID: PMC9064292 DOI: 10.7554/elife.77740] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/26/2022] [Indexed: 02/05/2023] Open
Abstract
Wnt/β-catenin signaling has been well established as a potent inhibitor of adipogenesis. Here, we identified a population of adipocytes that exhibit persistent activity of Wnt/β-catenin signaling, as revealed by the Tcf/Lef-GFP reporter allele, in embryonic and adult mouse fat depots, named as Wnt+ adipocytes. We showed that this β-catenin-mediated signaling activation in these cells is Wnt ligand- and receptor-independent but relies on AKT/mTOR pathway and is essential for cell survival. Such adipocytes are distinct from classical ones in transcriptomic and genomic signatures and can be induced from various sources of mesenchymal stromal cells including human cells. Genetic lineage-tracing and targeted cell ablation studies revealed that these adipocytes convert into beige adipocytes directly and are also required for beige fat recruitment under thermal challenge, demonstrating both cell autonomous and non-cell autonomous roles in adaptive thermogenesis. Furthermore, mice bearing targeted ablation of these adipocytes exhibited glucose intolerance, while mice receiving exogenously supplied such cells manifested enhanced glucose utilization. Our studies uncover a unique adipocyte population in regulating beiging in adipose tissues and systemic glucose homeostasis.
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Affiliation(s)
- Zhi Liu
- Department of Cell and Molecular Biology, Tulane University, New Orleans, United States.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tian Chen
- Department of Cell and Molecular Biology, Tulane University, New Orleans, United States.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sicheng Zhang
- Department of Cell and Molecular Biology, Tulane University, New Orleans, United States.,State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Tianfang Yang
- Department of Cell and Molecular Biology, Tulane University, New Orleans, United States
| | - Yun Gong
- Tulane Center of Biomedical Informatics and Genomic, Deming Department of Medicine, School of Medicine, Tulane University, New Orleans, United States
| | - Hong-Wen Deng
- Tulane Center of Biomedical Informatics and Genomic, Deming Department of Medicine, School of Medicine, Tulane University, New Orleans, United States
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weidong Tian
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - YiPing Chen
- Department of Cell and Molecular Biology, Tulane University, New Orleans, United States
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Wang Z, Zhang Y, Yin Y, Liu J, Li P, Zhao Y, Bai D, Zhao H, Han X, Chen Q. High-Strength and Injectable Supramolecular Hydrogel Self-Assembled by Monomeric Nucleoside for Tooth-Extraction Wound Healing. Adv Mater 2022; 34:e2108300. [PMID: 35066934 DOI: 10.1002/adma.202108300] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 01/18/2022] [Indexed: 02/05/2023]
Abstract
Hydrogels with high mechanical strength and injectability have attracted extensive attention in biomedical and tissue engineering. However, endowing a hydrogel with both properties is challenging because they are generally inversely related. In this work, by constructing a multi-hydrogen-bonding system, a high-strength and injectable supramolecular hydrogel is successfully fabricated. It is constructed by the self-assembly of a monomeric nucleoside molecular gelator (2-amino-2'-fluoro-2'-deoxyadenosine (2-FA)) with distilled water/phosphate buffered saline as solvent. Its storage modulus reaches 1 MPa at a concentration of 5.0 wt%, which is the strongest supramolecular hydrogel comprising an ultralow-molecular-weight (MW < 300) gelator. Furthermore, it exhibits excellent shear-thinning injectability, and completes the sol-gel transition in seconds after injection at 37 °C. The multi-hydrogen-bonding system is essentially based on the synergistic interactions between the double NH2 groups, water molecules, and 2'-F atoms. Furthermore, the 2-FA hydrogel exhibits excellent biocompatibility and antibacterial activity. When applied to rat molar extraction sockets, compared to natural healing and the commercial hemorrhage agent gelatin sponge, the 2-FA hydrogel exhibits faster degradation and induces less osteoclastic activity and inflammatory infiltration, resulting in more complete bone healing. In summary, this study provides ideas for proposing a multifunctional, high-strength, and injectable supramolecular hydrogel for various biomedical engineering applications.
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Affiliation(s)
- Zheng Wang
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Yanan Zhang
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Yijia Yin
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Jiang Liu
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Peiran Li
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Yuxi Zhao
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Ding Bai
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Hang Zhao
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
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32
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Wang Z, Zhang Y, Yin Y, Liu J, Li P, Zhao Y, Bai D, Zhao H, Han X, Chen Q. High‐Strength and Injectable Supramolecular Hydrogel Self‐Assembled by Monomeric Nucleoside for Tooth‐Extraction Wound Healing (Adv. Mater. 13/2022). Advanced Materials 2022. [DOI: 10.1002/adma.202270102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Zheng Wang
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Yanan Zhang
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Yijia Yin
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Jiang Liu
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Peiran Li
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Yuxi Zhao
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Ding Bai
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Hang Zhao
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases National Clinical Research Center for Oral Diseases Chinese Academy of Medical Sciences Research Unit of Oral Carcinogenesis and Management, Med‐X Center for Materials West China Hospital of Stomatology Sichuan University Chengdu Sichuan 610041 P. R. China
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He Y, Tian Y, Zhang W, Wang X, Yang X, Li B, Ge L, Bai D, Li D. Fabrication of oxidized sodium alginate-collagen heterogeneous bilayer barrier membrane with osteogenesis-promoting ability. Int J Biol Macromol 2022; 202:55-67. [PMID: 34998883 DOI: 10.1016/j.ijbiomac.2021.12.155] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 12/20/2021] [Accepted: 12/24/2021] [Indexed: 02/07/2023]
Abstract
Guided bone regeneration technique is an effective approach to repair bone defects, in which a barrier membrane is essential. However, the collagen barrier membranes commonly used lose stability quickly, leading to connective tissue invasion and failure of osteogenesis. Herein, we presented an oxidized sodium alginate (OSA)-collagen heterogeneous bilayer barrier membrane with well-controlled pore size and osteogenesis-promoting ability. The OSA crosslinking significantly improved the structural stability, compressive strength, swelling behavior, and slowed down the biodegradation rate of collagen membranes. Meanwhile, the collagen-based membranes exhibited superior cytocompatibility, osteogenesis-promotion, and barrier function against fibroblasts. Especially, the osteogenic differentiation was most promoted on the membrane with a large pore size (240-310 μm), while the barrier function was most improved on the membrane with a small pore size (30-60 μm). Then the above two membranes were combined together to obtain a heterogeneous bilayer membrane. This bilayer barrier membrane showed excellent osteogenesis-promoting ability in rats.
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Affiliation(s)
- Yiruo He
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Ye Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Wenjie Zhang
- Department of Nuclear Medicine, West China Hospital, Sichuan University, Chengdu 610041, PR China
| | - Xinghai Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Xue Yang
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Bin Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China
| | - Liming Ge
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, PR China.
| | - Defu Li
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu 610065, PR China.
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Wang J, Cha S, Zhao Q, Bai D. Methods to assess tooth gingival thickness and diagnose gingival phenotypes: A systematic review. J ESTHET RESTOR DENT 2022; 34:620-632. [PMID: 35297167 DOI: 10.1111/jerd.12900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 02/20/2022] [Accepted: 02/21/2022] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Measurement of the periodontal soft tissue dimension is crucial for clinical decision-making and aesthetic prognosis. However, the effectiveness of different measuring methods remains unclear. This systematic review aimed to explore the diagnostic accuracy of two non-invasive methods (namely CBCT and ultrasound) for gingival thickness measurement at different tooth positions. MATERIALS AND METHODS A systematic search was performed using PubMed (including Medline), PubMed Central, OVID, Cochrane Library, LILACS and OpenGrey. Studies focusing on comparisons between CBCT, ultrasound and direct transgingival probing were included. The means, SDs and correlation coefficients with 95% confidence intervals were extracted and analyzed using Review Manager and R software. RESULTS Twelve studies were selected. No significant difference was found between CBCT measurement and transgingival probing in the anterior and posterior dentition, and a moderate correlation was observed between these two methods (r = 0.41). A weak correlation was found between ultrasound measurement and transgingival probing (r = 0.32), and a slight but statistically significant difference was found when comparing ultrasonic devices and transgingival probing in the posterior area. CONCLUSION CBCT can be considered a relatively reliable method for gingival thickness measurement in both the anterior and posterior areas compared with direct probing. Ultrasonic devices provide limited accuracy in the posterior area but are relatively comparable with direct clinical assessments in the anterior area. CLINICAL SIGNIFICANCE Measurement location may affect the diagnostic accuracy and repeatability of gingival thickness measurements. Appropriate method selection in different clinical scenarios is crucial to aesthetic outcome prediction and decision-making.
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Affiliation(s)
- Jiangyue Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Sa Cha
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qing Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Cha S, Wang J, Lee SM, Tan Z, Zhao Q, Bai D. Clock-modified mesenchymal stromal cells therapy rescues molecular circadian oscillation and age-related bone loss via miR142-3p/Bmal1/YAP signaling axis. Cell Death Dis 2022; 8:111. [PMID: 35279674 PMCID: PMC8918353 DOI: 10.1038/s41420-022-00908-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 02/13/2022] [Accepted: 02/18/2022] [Indexed: 02/08/2023]
Abstract
Age-related bone loss and disease strongly affect the quality of life of the elderly population. Cellular circadian rhythms have been reported to regulate bone aging, and micro RNAs (miRNAs) play crucial posttranscriptional regulatory roles in the peripheral clock network. Proliferation capability, osteogenic lineage commitment, senescence-associated secreted phenotype (SASP) and circadian oscillation of clock genes under osteogenic condition were assessed in bone marrow mesenchymal stromal cells (BMSCs) from young adult and aged adult mice. miRNAs targeting the core clock gene brain and muscle arntl-like protein 1 (Bmal1) were screened and verified in young and old BMSCs with RT-qPCR and Western Blot analysis. ChIP-seq and RNA-seq datasets were mined to define the downstream mechanism and gain- and loss-of-function genetic experiments were performed to confirm the hypothesis. To compare the therapeutic effect of these clock-engineered BMSCs, SASP and osteogenic capability of Bmal1-overexpressing and miR-142-3p-inhibited BMSCs were investigated in vitro and transplanted into bone defects and femur cavities of aged mice. Aged BMSCs displayed an abolished circadian rhythm, impaired self-renewal capability and decreased osteoblast differentiation. miR-142-3p was elevated with aging, which downregulated Bmal1 and diminished the osteogenic potential of BMSCs. In addition, Bmal1 inhibited YAP expression to promote BMSCs osteogenesis, which was independent from the activation of Hippo signaling pathway. Overexpression of Bmal1 or inhibition of miR-142-3p rescued the molecular temporal rhythm and osteoblast differentiation ex vivo. Cell-based circadian therapy showed improved bone formation and higher turnover levels in vivo. This study demonstrates that transcriptional and post-transcriptional level clock-modified BMSCs rescued circadian oscillation and age-related bone loss via miR-142-3p/Bmal1/YAP signaling axis. These data provide promising clinical prospects of circadian-mediated stromal cell-based therapy and bone tissue regeneration.
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Tian Y, Huang G, Xiang X, Wang N, Dai W, Chen J, Shu R, Bai D, Xu H. The lower bow-shaped curve as a novel reference frame to determine the lateral limit of the maxillary anterior arch for smile esthetics. Am J Orthod Dentofacial Orthop 2022; 161:e544-e553. [DOI: 10.1016/j.ajodo.2022.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/01/2022] [Accepted: 02/01/2022] [Indexed: 11/28/2022]
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Liu Z, Yin Y, Wang Z, Xie L, Deng P, Wang D, Ji N, Zhao H, Han X, Chen Q, Chung CH, Bai D, Zhao X. RANKL inhibition halts lesion progression and promotes bone remineralization in mice with fibrous dysplasia. Bone 2022; 156:116301. [PMID: 34952228 DOI: 10.1016/j.bone.2021.116301] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/07/2021] [Accepted: 12/13/2021] [Indexed: 02/08/2023]
Abstract
Fibrous dysplasia (FD) is a rare bone disease caused by GNAS mutation in skeletal stem cells, typically originating from and worsening in childhood. Till now, no cure for FD exists despite the well-recognized etiology. Studies have demonstrated that osteoclastogenesis hyperactivity is caused by elevated RANKL expression, making RANKL inhibition a potential therapy. Although a human monoclonal anti-RANKL antibody, denosumab, has been used in FD patients, the effects and mechanisms of RANKL inhibition for FD treatment require assessment. Denosumab is expensive and can only be injected. Therefore, formulating an oral-administered, cost-effective medicine is encouraged. In the current study, we evaluated the effects of a small-molecule RANKL inhibitor, AS2676293, on a transgenic FD mouse model. AS2676293 effectively suppressed osteoclastogenesis and halted FD progression. The pre-existing bone defects were primarily replaced by newly formed mineralized bone after two weeks of AS2676293 administration. The potent RANKL inhibitory effect and easier route of delivery make AS2676293 a promising target therapy of FD. Results from our study suggested that RANKL inhibition is effective in halting FD progression and promoting bone remineralization, which could benefit the patients with early onset of FD.
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Affiliation(s)
- Zhongyu Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yijia Yin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Zheng Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Liang Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Peng Deng
- Laboratory of Molecular Signaling, Division of Oral Biology and Medicine, School of Dentistry, UCLA, Los Angeles, CA 90095, USA
| | - Donghui Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Ning Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hang Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chun-Hsi Chung
- Department of Orthodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
| | - Xuefeng Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China.
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Gardner EA, McGrath SA, Dowling D, Bai D. The Opioid Crisis: Prevalence and Markets of Opioids. Forensic Sci Rev 2022; 34:43-70. [PMID: 35105535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The US opioid crisis came in three waves - prescription opioids, heroin, and illicitly manufactured fentanyls - Centers for Disease Control and Prevention Centers for Disease Control and Prevention resulting in the deaths of nearly 500,000 people from 1996 to 2019. In 2009, drug overdose deaths exceeded those involving automobiles. Opioid overdose deaths contributed to the decrease in life expectancy for Americans from 78.8 to 78.5 during 2014 to 2017. The overprescribing of a schedule II prescription opioid was escalated by pharmaceutical companies promoting a growing belief that pain was an undertreated condition. In 2012, the number of opioid prescriptions peaked at 255 million and deaths exceeded 11,000 per year. The typical prescription opioid abuser was white, male, and 45-55 years of age. The hardest-hit states were in Appalachia and the Northeast. When an abuse-resistant formulation was introduced for OxyContin, the most prevalent prescription opioid, users turned to heroin. From the early 1980s, a new pizza delivery style of Mexican trafficking in black tar heroin infiltrated many of the same states hit hardest by prescription opioids. Heroin overdose deaths reached 14,495 in 2017. As heroin abuse increased in states supplied with black tar heroin, fentanyl-contaminated white powder heroin began to appear in the Northeast. Fentanyl was quickly followed by fentanyl analogs. While heroin deaths continued to escalate through 2017, they were soon overshadowed by fentanyl overdose deaths. Finally, prescription opioid and heroin overdose deaths started to decline in 2017, though fentanyl deaths continued to increase. In late 2019, it appeared that restrictions on transportation and travel due to the COVID-19 pandemic had resulted in decreased availability of illicit drugs, but by 2020 drug abuse had escalated in many countries. Globally, heroin was the primary opioid of abuse and only a few countries - including Canada, Germany, Austria, and Belgium - have experienced a significant increase in prescription opioids. However, illicitly manufactured fentanyls are a growing problem in North America, Europe, Australia, and Asia.
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Affiliation(s)
- E A Gardner
- Department of Criminal Justice, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - S A McGrath
- Department of Criminal Justice, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - D Dowling
- Institute of Technology, Sligo, Ballinode, Ireland
| | - D Bai
- Department of Chemistry, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
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Huang L, Zheng Z, Bai D, Han X. Stem Cells from Human Exfoliated Deciduous Teeth and their Promise as Preventive and Therapeutic Strategies for Neurological Diseases and Injuries. Curr Stem Cell Res Ther 2021; 17:527-536. [PMID: 34967291 DOI: 10.2174/1574888x17666211229155533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/04/2021] [Accepted: 11/15/2021] [Indexed: 11/22/2022]
Abstract
Stem cells from human exfoliated deciduous teeth (SHEDs) are relatively easy to isolate from exfoliated deciduous teeth, which are obtained via dental therapy as biological waste. SHEDs originate from the embryonic neural crest and therefore have considerable potential for neurogenic differentiation. Currently, an increasing amount of research attention is focused on the therapeutic applications of SHEDs in neurological diseases and injuries. In this article, we summarize the biological characteristics of SHEDs and the potential role of SHEDs and their derivatives, including conditioned medium from SHEDs and the exosomes they secrete, in the prevention and treatment of neurological diseases and injuries.
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Affiliation(s)
- Lingyi Huang
- West China College of Stomatology/ State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
| | - Zizhuo Zheng
- West China College of Stomatology/ State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
| | - Ding Bai
- West China College of Stomatology/ State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
| | - Xianglong Han
- West China College of Stomatology/ State Key Laboratory of Oral Diseases, Sichuan University, Chengdu 610041, China
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He Y, Wang Y, Wang X, Wang J, Bai D, Guo Y. Nonsurgical treatment of a hyperdivergent skeletal Class III patient with mini-screw-assisted mandibular dentition distalization and flattening of the occlusal plane. Angle Orthod 2021; 92:287-293. [PMID: 34874988 DOI: 10.2319/040521-272.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/01/2021] [Indexed: 11/23/2022] Open
Abstract
Treatment of hyperdivergent skeletal Class III malocclusion is challenging for orthodontists, and orthognathic-orthodontic treatment is usually required. This report presents the successful nonsurgical treatment of a 20-year-old man who had a skeletal Class III malocclusion with anterior open bite, anterior and posterior crossbite, hyperdivergent growth pattern, steep occlusal plane, early loss of three first molars, and an uncommon convex profile with a retruded chin. An orthodontic camouflage treatment plan was chosen based on the etiology and the patient's complaints. Tooth #37 was extracted. Miniscrews were used for uprighting and intruding of the lower molars, distalization of the lower dentition, and flattening of the occlusal plane. After 34 months of active treatment, Class I relationships, proper anterior overjet and overbite, flat occlusal plane, and an esthetic facial profile were achieved. The results demonstrated that the biomechanics involved in the nonsurgical treatment assisted with miniscrews to distalize the mandibular dentition and flatten the occlusal plane while keeping the mandibular plane stable was effective for treating this hyperdivergent skeletal Class III patient with a convex profile and anterior open bite.
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Wang PP, Dong HL, Sun H, Pang XX, Cai CJ, Bai D, Li F, Yang MY, Lan X, Zeng G. [Association between dietary vitamin A intake and gestational diabetes mellitus in the first trimester]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1293-1298. [PMID: 34749471 DOI: 10.3760/cma.j.cn112150-20201023-01305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the relationship between dietary vitamin A intake and its sources in the first trimester and gestational diabetes mellitus (GDM). Methods: A prospective study was conducted to select women at 6-14 weeks of gestation in an obstetric clinic of a maternal and child health care medical institution in Chengdu in 2017. The types and quantities of food during the first trimester were collected by 3-day 24-hour dietary recalls. Dietary vitamin A intake was calculated based on the Chinese Food Composition Table (2018), and it was divided into animal and plant vitamin A intakes according to its food sources. An oral glucose tolerance test was performed at 24-28 weeks of gestation to diagnose GDM according to the Chinese guidelines for diagnosis and treatment of gestational diabetes mellitus (2014). According to the estimated average requirement (EAR) and recommended nutrient intake (RNI), dietary vitamin A intake was divided into low-level group (<EAR), medium-level group (EAR-RNI) and high-level group (>RNI). Animal and plant vitamin A intakes were divided into four groups (Q1-Q4) according to the quartile method, respectively. The association between dietary vitamin A intake, its different sources of vitamin A intake and GDM in the first trimester was analyzed by log-binomial regression models. Results: A total of 1 298 valid samples were finally included. The average dietary vitamin A intake, animal and plant vitamin A intakes in the first trimester were 341.1 (227.8-501.0) μgRAE/d, 139.3 (69.6-195.3) μgRAE/d and 184.2 (99.4-301.1) μgRAE/d, respectively. After adjusting for confounding factors, log-binomial regression analysis showed that the risk of GDM in high-level group of dietary vitamin A intake was lower than that in low-level group [RR (95%CI):0.53 (0.36-0.80)]. Pregnant women in the highest quartile of animal vitamin A intake had a lower risk of GDM than those in the lowest quartile [RR (95%CI):0.66 (0.47-0.95)]. No relationship between plant vitamin A intake and GDM was found. Conclusion: Dietary vitamin A intake in the first trimester is associated with the occurrence of GDM, and higher intake than RNI may reduce the risk of GDM. Higher vitamin A intake from animal-derived food is associated with decreased risk of GDM.
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Affiliation(s)
- P P Wang
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - H L Dong
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - H Sun
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - X X Pang
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - C J Cai
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - D Bai
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - F Li
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - M Y Yang
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - X Lan
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - G Zeng
- Department of Nutrition and Food Safety, West China School of Public Health/West China Fourth Hospital, Sichuan University, Chengdu 610041, China
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Cha S, Lee SM, Wang J, Zhao Q, Bai D. Enhanced Circadian Clock in MSCs-Based Cytotherapy Ameliorates Age-Related Temporomandibular Joint Condyle Degeneration. Int J Mol Sci 2021; 22:10632. [PMID: 34638972 PMCID: PMC8508754 DOI: 10.3390/ijms221910632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 12/17/2022] Open
Abstract
Aging has been proven to be one of the major causes of temporomandibular joint (TMJ) disability and pain in older people. Peripheral circadian rhythms play a crucial role in endochondral ossification and chondrogenesis. However, the age-related alterations of circadian clock in TMJ structures are seldom reported. In the current study, TMJ condyles were extracted from young (4-month-old), middle-aged (10-month-old), and old-aged (20-month-old) adults to detect the morphology and circadian oscillation changes in TMJ condyles with aging. The transcriptome profile of Bmal1-deleted bone-marrow mesenchymal stem cells (BMSCs) and controls were explored to reveal the circadian-related differences at the molecular level. Furthermore, the reparative effects of Bmal1-overexpressed BMSCs-based cytotherapy in aged TMJ condyles were investigated in vitro and in vivo. Aged TMJ condyles displayed damaged tissue structure and an abolished circadian rhythm, accompanied by a progressively decreasing chondrogenesis capability and bone turnover activities. The deletion of Bmal1 significantly down-regulated chondrogenesis-related genes Prg4, Sox9, and Col7a1. Bmal1-overexpressed BMSCs presented improved migration capability ex vivo and attenuated age-related TMJ condylar degeneration in vivo. These data demonstrate the crucial role of circadian timing in the maintenance of osteochondral homeostasis, and indicate the potential clinical prospects of circadian-modified MSCs therapy in tissue regeneration.
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Affiliation(s)
| | | | | | - Qing Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu 610041, China; (S.C.); (S.-M.L.); (J.W.)
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu 610041, China; (S.C.); (S.-M.L.); (J.W.)
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Wang H, Xu Y, Wang P, Ma J, Wang P, Han X, Fan Y, Bai D, Sun Y, Zhang X. Cell-mediated injectable blend hydrogel-BCP ceramic scaffold for in situ condylar osteochondral repair. Acta Biomater 2021; 123:364-378. [PMID: 33453407 DOI: 10.1016/j.actbio.2020.12.056] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 12/24/2020] [Accepted: 12/29/2020] [Indexed: 02/08/2023]
Abstract
The existing approaches for healing mandibular condylar osteochondral defects, which are prevalent in temporomandibular joint disorders (TMD), are sparse and not reparative. To address this, regenerative medicine in situ has transpired as a potential therapeutic solution as it can effectively regenerate composite tissues. Herein, injectable self-crosslinking thiolated hyaluronic acid (HA-SH)/type I collagen (Col I) blend hydrogel and BCP ceramics combined with rabbit bone mesenchymal stem cells (rBMSCs)/chondrocytes were used to fabricate a new bi-layer scaffold to simulate specific structure of rabbit condylar osteochondral defects. The in vitro results demonstrated that the blend hydrogel scaffold provided suitable microenvironment for simultaneously realizing proliferation and chondrogenic specific matrix secretion of both rBMSCs and chondrocytes, while BCP ceramics facilitated rBMSCs proliferation and osteogenic differentiation. The in vivo results confirmed that compared with cell-free implant, the rBMSCs/chondrocytes-loaded bi-layer scaffold could effectively promote the regeneration of both fibrocartilage and subchondral bone, suggesting that the bi-layer scaffold presented a promising option for cell-mediated mandibular condylar cartilage regeneration.
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Zhao M, Wang P, Wang H, Li X, Bai D, Tian Y. Diagnostic and treatment protocol for a patient with temporomandibular disorder using a stabilization splint and temporary anchorage devices. Am J Orthod Dentofacial Orthop 2021; 159:666-681.e2. [PMID: 33653641 DOI: 10.1016/j.ajodo.2020.05.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 05/01/2020] [Accepted: 05/01/2020] [Indexed: 02/08/2023]
Abstract
Treatment of orthodontic patients with temporomandibular disorder (TMD) is challenging for orthodontists because of the TMD signs and symptoms and unstable mandible position, which may lead to improper diagnosis and treatment design. This case report presents a 22-year-old woman with proclined maxillary incisors and TMD. First, stabilization splint therapy was implemented to eliminate temporomandibular joint pain and to obtain the stable adapted centric posture. Subsequently, orthodontic treatment was initiated on the basis of a definitive diagnosis made from the postsplint records. Temporary anchorage devices were used to intrude maxillary molars and distalize the maxillary dental arch. Favorable soft tissue, skeletal, and dental relationship were accomplished after 12 months of comprehensive orthodontic treatment. Functional occlusion was established with teeth as well as vacuum-formed retainers. Excellent posttreatment stability was maintained after a 20-month retention.
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Affiliation(s)
- Mengyuan Zhao
- Institute of Dental Research, and Department of Orthodontics, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing, China
| | - Peiqi Wang
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Hongzhe Wang
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Xiaoqing Li
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Oral Anatomy and Physiology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ye Tian
- State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, and Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
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Dai W, Wang M, Wang P, Wen J, Wang J, Cha S, Xiao X, He Y, Shu R, Bai D. lncRNA NEAT1 ameliorates LPS‑induced inflammation in MG63 cells by activating autophagy and suppressing the NLRP3 inflammasome. Int J Mol Med 2021; 47:607-620. [PMID: 33416115 PMCID: PMC7797466 DOI: 10.3892/ijmm.2020.4827] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 11/19/2020] [Indexed: 02/05/2023] Open
Abstract
The mechanisms of inflammation in bone and joint tissue are complex and involve long non‑coding RNAs (lncRNAs), which play an important role in this process. The aim of the present study was to screen out differentially expressed genes in human osteoblasts stimulated by inflammation, and to further explore the mechanisms underlying inflammatory responses and the functional activity of human osteoblasts through bioinformatics methods and in vitro experiments. For this purpose, MG63 cells were stimulated with various concentrations of lipopolysaccharide (LPS) for different periods of time to construct an optimal inflammatory model and RNA sequencing was then performed on these cells. The levels of nuclear enriched abundant transcript 1 (NEAT1), various inflammatory factors, Nod‑like receptor protein 3 (NLRP3) protein and osteogenesis‑related proteins, as well as the levels of cell apoptosis‑ and cell cycle‑related markers were measured in MG63 cells stimulated with LPS, transfected with NEAT1 overexpression plasmid and treated with bexarotene by western blot analysis, RT‑qPCR, immunofluorescence, FISH, TEM and flow cytometry. There were 427 differentially expressed genes in the LPS‑stimulated MG63 cells, in which NEAT1 was significantly downregulated. LPS upregulated the expression of inflammatory cytokines and NLRP3, inhibited the expression of autophagy‑related and osteogenesis‑related proteins, promoted apoptosis and altered the cell cycle, which was partially inhibited by NEAT1 overexpression and promoted by bexarotene. LPS stimulated inflammation in the MG63 cells and inhibited the retinoid X receptor (RXR)‑α to downregulate the expression of NEAT1 and decrease levels of autophagy, which promoted the activation of NLRP3 and the release of inflammatory factors, and impaired the functional activity of osteoblasts, thus promoting the development of inflammation.
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Affiliation(s)
- Wenyu Dai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Manyi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
- Stomatological Hospital, Southern Medical University, Guangzhou, Guangdong 510599, P.R. China
| | - Peiqi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Ji Wen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Jiangyue Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Sa Cha
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Xueling Xiao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Yiruo He
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Rui Shu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Disease, Department of Orthodontics and Pediatrics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041
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Chen Y, Guan Q, Han X, Bai D, Li D, Tian Y. Proteoglycans in the periodontium: A review with emphasis on specific distributions, functions, and potential applications. J Periodontal Res 2021; 56:617-632. [PMID: 33458817 DOI: 10.1111/jre.12847] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/16/2020] [Accepted: 12/22/2020] [Indexed: 02/05/2023]
Abstract
Proteoglycans (PGs) are largely glycosylated proteins, consisting of a linkage sugar, core proteins, and glycosaminoglycans (GAGs). To date, more than 40 kinds of PGs have been identified, and they can be classified as intracellular, cell surface, pericellular, and extracellular PGs according to cellular locations. To illustrate, extracellular PGs are known for regulating the homeostasis of the extracellular matrix; cell-surface PGs play a role in mediating cell adhesion and binding various growth factors. In the field of periodontology, PGs are implicated in cellular proliferation, migration, adhesion, contractility, and anoikis, thereby exerting a profound influence on periodontal tissue development, wound repair, the immune response, biomechanics, and pathological process. Additionally, the expression patterns of some PGs are dynamic and cell-specific. Therefore, determining the roles and spatial-temporal expression patterns of PGs in the periodontium could shed light on treatments for wound healing, tissue regeneration, periodontitis, and gingival overgrowth. In this review, close attention is paid to the distributions, functions, and potential applications of periodontal PGs. Related genetically modified animal experiments and involved signal transduction cascades are summarized for improved understanding of periodontal PGs. To date, however, there is a large amount of speculation on this topic that requires rigorous experiments for validation.
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Affiliation(s)
- Yilin Chen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qiuyue Guan
- Department of Geriatrics, People's Hospital of Sichuan Province, Chengdu, China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ding Bai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Defu Li
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Ye Tian
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Orthodontics and Pediatric Dentistry, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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47
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Wang Z, Liu J, Zhang Y, Qi J, Han X, Zhao X, Bai D, Zhao H, Chen Q. Cover Feature: Intrinsic Contributions of 2′‐Hydroxyl to the Hydration of Nucleosides at the Monomeric Level (Chem. Eur. J. 71/2020). Chemistry 2020. [DOI: 10.1002/chem.202004200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Zheng Wang
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Jiang Liu
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Yanan Zhang
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Jiajia Qi
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Xuefeng Zhao
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Ding Bai
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Hang Zhao
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases National Clinical, Research Center for Oral Diseases Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management West China, Hospital of Stomatology Sichuan University 610041 Chengdu P.R. China
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Guo Y, Jing Y, Wang Y, To A, Du S, Wang L, Bai D. Authors' response. Am J Orthod Dentofacial Orthop 2020; 158:779-780. [DOI: 10.1016/j.ajodo.2020.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 09/09/2020] [Indexed: 11/16/2022]
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Wang Z, Liu J, Zhang Y, Qi J, Han X, Zhao X, Bai D, Zhao H, Chen Q. Intrinsic Contributions of 2'-Hydroxyl to the Hydration of Nucleosides at the Monomeric Level. Chemistry 2020; 26:17046-17055. [PMID: 32786015 DOI: 10.1002/chem.202002835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Indexed: 02/05/2023]
Abstract
Although many reports have revealed structural differences between DNA and RNA at the polymeric level, there are no comparative studies with 2'-deoxyribonucleoside and ribonucleoside to explore the role of the 2'-OH group at the monomeric level under the same conditions. Inspired by this, herein, the intrinsic contributions of the 2'-OH group in the nucleoside have been systematically investigated by directly solving the single-crystal structures of 2'-deoxy-2-aminoadenosine (1), 2-aminoadenosine (2), and 2-aminoarabinofuranosyladenine (3) in water. The 2'-OH group not only influenced the conformation and base-pair pattern of the single-nucleoside molecule, but also played a fundamental role in the entire supramolecular structure. Interestingly, compound 1, which did not contain the 2'-OH group, displayed strong hydration, whereas 2 and 3 (with the 2'-OH group in the opposite direction) exhibited no hydration, which was completely different from that observed in nucleic acids. Meanwhile, compound 1 trapped water molecules to form unique trihydrol moieties, which further served as the backbone to construct the simplest double-chain DNA-like structures. To this end, to investigate the effect of the biological environment on these unique structures, the solvent was changed from water to phosphate-buffered saline (PBS). Surprisingly, such a subtle adjustment led to entirely different superstructures, consisting of 2D lamellar structures in water and 3D porous structures in PBS. These large morphological differences could be attributed to delicate ion hydration, which was also confirmed through variable-temperature X-ray analysis, SEM, and intermolecular interaction energy calculations. In summary, this study comprehensively investigated the intrinsic contributions of 2'-hydroxyl to the hydration of nucleosides at the monomeric level; this is helpful to further understand the differences in DNA/RNA and the impact of their surrounding environment.
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Affiliation(s)
- Zheng Wang
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Jiang Liu
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Yanan Zhang
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Jiajia Qi
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Xianglong Han
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Xuefeng Zhao
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Ding Bai
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Hang Zhao
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, National Clinical, Research Center for Oral Diseases, Chinese Academy of Medical Sciences, Research Unit of Oral Carcinogenesis and Management, West China, Hospital of Stomatology, Sichuan University, 610041, Chengdu, P.R. China
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50
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Dong HL, Cai CJ, Bai D, Pang XX, Lan X, Zhang YQ, Zhang J, Zhou FM, Sun H, Zeng G. [Association between dietary glycemic load during first trimester and the risk of gestational diabetes mellitus: a prospective study]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1352-1358. [PMID: 32867449 DOI: 10.3760/cma.j.cn112338-20190909-00659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of dietary glycemic load (GL) during first trimester on the risk of gestational diabetes mellitus (GDM). Methods: A prospective study was conducted among healthy women with singleton pregnancy at 8-14 weeks of gestation in a maternity out-patient clinic of maternal-and-child health care institution in Chengdu, Sichuan province. Information on dietary intake during the first trimester was collected through a 3-day 24-hour dietary recall. Glycemic index (GI) values were obtained from China Food Composition Tables (Standard Edition) and International Tables of Glycemic Index and Glycemic Load Values (2008). Dietary GL and GLs of staple foods were calculated based on GI values and the amount of carbohydrate consumed per day. Diagnostic criteria of GDM was followed the Guidelines for Diagnosis and Treatment of Pregnancy Diabetes in China (2014), and used on participants who underwent an oral glucose tolerant test during 24-28 weeks of gestation. Log-binomial regression models were used to explore the associations between both quartiles of dietary GL, GLs of staple foods and the risks of GDM,respectively. Results: The medians of dietary GL and GL of staple foods were 145.70 (113.23-180.85) and 121.05 (89.08-155.70), respectively. The median GL of both rice and tubers were 73.14 (43.89-107.50) and 3.43 (0.00-9.84), respectively. After adjusting for the age at pregnancy, pre-pregnancy body mass index and other confounding factors, results of log-binomial regressions analysis showed that when compared with the lowest quartile of dietary GL group, the third and highest quartiles of dietary GL groups increased the risk of GDM (RR=1.47, 95%CI: 1.20-1.80; RR=1.31, 95%CI: 1.04-1.64), respectively. Compared with the lowest quartile of GL of staple foods, the third and highest quartiles of GL of staple foods groups also increased the risk of GDM (RR=1.28, 95%CI: 1.04-1.58; RR=1.27, 95%CI: 1.02-1.60), respectively. The third and highest quartiles of GL of rice groups increased the risk of GDM (RR=1.30, 95%CI: 1.06-1.59; RR=1.28, 95%CI: 1.03-1.59), respectively, than the lowest quartile of GL of rice group. When compared with the lowest quartile of GL of tubers group, the highest quartile of GL of tubers group increased the risk of GDM (RR=1.30, 95%CI: 1.09-1.54). However, we did not notice the effects of wheat GL and coarse grain GL on the risk of GDM. Conclusions: A positive association was found between dietary glycemic load and the risk of GDM. Higher dietary glycemic load, especially in rice and tubers during first trimester, seemed to have increased the risk of GDM.
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Affiliation(s)
- H L Dong
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - C J Cai
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - D Bai
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - X X Pang
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - X Lan
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Y Q Zhang
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - J Zhang
- Department of Clinical Nutrition, Sichuan Provincial Hospital for Women and Children, Chengdu 610045, China
| | - F M Zhou
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - H Sun
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - G Zeng
- Department of Nutrition, Food Hygiene and Toxicology, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China
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