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Hadeiy SK, Habtemariam S, Shankayi Z, Shahyad S, Sahraei H, Asghardoust Rezaei M, Bahrami F. Amelioration of pain and anxiety in sleep-deprived rats by intra-amygdala injection of cinnamaldehyde. Sleep Med X 2023. [DOI: 10.1016/j.sleepx.2023.100069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Chung MK, Wang S, Alshanqiti I, Hu J, Ro JY. The degeneration-pain relationship in the temporomandibular joint: Current understandings and rodent models. FRONTIERS IN PAIN RESEARCH 2023; 4:1038808. [PMID: 36846071 PMCID: PMC9947567 DOI: 10.3389/fpain.2023.1038808] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
Temporomandibular disorders (TMD) represent a group of musculoskeletal conditions involving the temporomandibular joints (TMJ), the masticatory muscles and associated structures. Painful TMD are highly prevalent and conditions afflict 4% of US adults annually. TMD include heterogenous musculoskeletal pain conditions, such as myalgia, arthralgia, and myofascial pain. A subpopulations of TMD patients show structural changes in TMJ, including disc displacement or degenerative joint diseases (DJD). DJD is a slowly progressing, degenerative disease of the TMJ characterized by cartilage degradation and subchondral bone remodeling. Patients with DJD often develop pain (TMJ osteoarthritis; TMJ OA), but do not always have pain (TMJ osteoarthrosis). Therefore, pain symptoms are not always associated with altered TMJ structures, which suggests that a causal relationship between TMJ degeneration and pain is unclear. Multiple animal models have been developed for determining altered joint structure and pain phenotypes in response to various TMJ injuries. Rodent models of TMJOA and pain include injections to induce inflammation or cartilage destruction, sustained opening of the oral cavity, surgical resection of the articular disc, transgenic approaches to knockout or overexpress key genes, and an integrative approach with superimposed emotional stress or comorbidities. In rodents, TMJ pain and degeneration occur during partially overlapping time periods in these models, which suggests that common biological factors may mediate TMJ pain and degeneration over different time courses. While substances such as intra-articular pro-inflammatory cytokines commonly cause pain and joint degeneration, it remains unclear whether pain or nociceptive activities are causally associated with structural degeneration of TMJ and whether structural degeneration of TMJ is necessary for producing persistent pain. A thorough understanding of the determining factors of pain-structure relationships of TMJ during the onset, progression, and chronification by adopting novel approaches and models should improve the ability to simultaneously treat TMJ pain and TMJ degeneration.
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Affiliation(s)
- Man-Kyo Chung
- Department of Neural and Pain Sciences, School of Dentistry, Program in Neuroscience, Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD, United States
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Schmidt SM, Venezian GC, Custodio W, Menezes CCD, Vedovello SAS, Degan VV. Temporomandibular disorder symptoms in the university context. Cranio 2021:1-7. [PMID: 34933662 DOI: 10.1080/08869634.2021.2015556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To assess the impact of the university context of different academic fields and class times and the sociodemographic context on the symptoms of temporomandibular disorder (TMD). METHODS A total of 2912 university students, divided into 26 undergraduate courses distributed in the fields of biology and exact and human sciences in the day and night participated in this study. The symptoms of orofacial pain and TMD were assessed using a self-explanatory questionnaire for screening, as recommended by the American Academy of Orofacial Pain. The data were analyzed using frequency distribution tables and multiple logistic regression at a 5% significance level. RESULTS There was a significant association between the female sex and the attended class time. Women and undergraduates of night courses were 1.60 times more likely to present symptoms related to TMD compared to women studying during the day. CONCLUSION It was concluded that, within the university context, women and undergraduate students enrolled in night courses were more likely to present with TMD symptoms.
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Affiliation(s)
- Sigmar Miguel Schmidt
- Department of Orthodontics, University Center of Hermínio Ometto Fundation-FHO, Araras, Brazil
| | | | - William Custodio
- Department of Orthodontics, University Center of Hermínio Ometto Fundation-FHO, Araras, Brazil
| | | | | | - Viviane Veroni Degan
- Department of Orthodontics, University Center of Hermínio Ometto Fundation-FHO, Araras, Brazil
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Tao SC, Huang JY, Gao Y, Li ZX, Wei ZY, Dawes H, Guo SC. Small extracellular vesicles in combination with sleep-related circRNA3503: A targeted therapeutic agent with injectable thermosensitive hydrogel to prevent osteoarthritis. Bioact Mater 2021; 6:4455-4469. [PMID: 34027234 PMCID: PMC8120802 DOI: 10.1016/j.bioactmat.2021.04.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/14/2021] [Accepted: 04/19/2021] [Indexed: 02/07/2023] Open
Abstract
Osteoarthritis (OA), characterized by chondrocyte apoptosis and disturbance of the balance between catabolism and anabolism of the extracellular matrix (ECM), is the most common age-related degenerative joint disease worldwide. As sleep has been found to be beneficial for cartilage repair, and circular RNAs (circRNAs) have been demonstrated to be involved in the pathogenesis of OA, we performed RNA sequencing (RNA-seq), and found circRNA3503 was significantly increased after melatonin (MT)-induced cell sleep. Upregulation of circRNA3503 expression completely rescued the effects of interleukin-1β (IL-1β), which was used to simulate OA, on apoptosis, ECM degradation- and synthesis-related genes. Mechanistically, circRNA3503 acted as a sponge of hsa-miR-181c-3p and hsa-let-7b-3p. Moreover, as we previously showed that small extracellular vesicles (sEVs) derived from synovium mesenchymal stem cells (SMSCs) can not only successfully deliver nucleic acids to chondrocytes, but also effectively promote chondrocyte proliferation and migration, we assessed the feasibility of sEVs in combination with sleep-related circRNA3503 as an OA therapy. We successfully produced and isolated circRNA3503-loaded sEVs (circRNA3503-OE-sEVs) from SMSCs. Then, poly(D,l-lactide)-b-poly(ethylene glycol)-b-poly(D,l-lactide) (PDLLA-PEG-PDLLA, PLEL) triblock copolymer gels were used as carriers of sEVs. Through in vivo and in vitro experiments, PLEL@circRNA3503-OE-sEVs were shown to be a highly-effective therapeutic strategy to prevent OA progression. Through multiple pathways, circRNA3503-OE-sEVs alleviated inflammation-induced apoptosis and the imbalance between ECM synthesis and ECM degradation by acting as a sponge of hsa-miR-181c-3p and hsa-let-7b-3p. In addition, circRNA3503-OE-sEVs promoted chondrocyte renewal to alleviate the progressive loss of chondrocytes. Our results highlight the potential of PLEL@circRNA3503-OE-sEVs for preventing OA progression. CircRNA3503 alleviated apoptosis and the imbalance between ECM synthesis and ECM degradation. Wnt5a/b carried by sEVs promoted chondrocyte renewal to alleviate the progressive loss of chondrocytes. PDLLA-PEG-PDLLA (PLEL) triblock copolymer gels showed good performance in slow release of sEVs. PLEL@circRNA3503-OE-sEVs showed potential to prevent OA progression.
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Affiliation(s)
- Shi-Cong Tao
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Ji-Yan Huang
- Department of Stomatology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, 185 Pu'an Road, Shanghai, 200021, China
| | - Yuan Gao
- School of Medicine, Shanghai Jiao Tong University, 227 South Chongqing Road, Shanghai, 200025, China
| | - Zi-Xiang Li
- Medical College of Soochow University, Soochow University, Changzhou, 215123, Jiangsu, China
| | - Zhan-Ying Wei
- Shanghai Clinical Research Centre of Bone Diseases, Department of Osteoporosis and Bone Diseases, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Helen Dawes
- Faculty of Health and Life Science, Oxford Brookes University, Headington Road, Oxford, OX3 0BP, UK
| | - Shang-Chun Guo
- Department of Orthopaedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.,Institute of Microsurgery on Extremities, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
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Choi H, Sim HY, Han K, Yun KI. Association between sleeping time and temporomandibular disorders in a sample of the South Korean population. Cranio 2019; 39:107-112. [PMID: 30896315 DOI: 10.1080/08869634.2019.1587243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: This study investigated the relationship between sleeping time and temporomandibular disorders (TMDs).Methods: This study used data from the Fifth Korea National Health and Nutrition Examination Survey from 2010 to 2011. The final sample size consisted of 11,782 adults aged ≥19 years. Logistic regression analysis was performed to assess the relationship between sleeping time and TMD.Results: The adjusted odds ratios of the TMD group were 1.421 (1.067, 1.892) (Model 1), 1.388 (1.028, 1.873) (Model 2), and 1.360 (1.012, 1.826) (Model 3) for subjects with sleeping time ≤5 hours (p < 0.05) and 1.317 (0.992, 1.748) (Model 1), 1.358 (1.01, 1.827) (Model 2), and 1.352 (0.977, 1.872) (Model 3) for subjects with sleeping time ≥9 hours (p < 0.05).Conclusion: Sleeping time ≤5 hours and ≥9 hours were associated with an increased rate of TMD.
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Affiliation(s)
- Hyungkil Choi
- Research Institute, Apple Tree Dental Hospital, Goyang-si, Gyeonggi-do, Korea
| | - Hye-Young Sim
- Department of Orthodontics, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Kyungdo Han
- Department of Biostatistics, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Kyoung-In Yun
- Department of Oral and Maxillofacial Surgery, The Catholic University of Korea, Yeouido St. Mary's Hospital, Seoul, Korea
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Wang J, Kwok MK, Au Yeung SL, Li AM, Lam HS, Leung JYY, Hui LL, Leung GM, Schooling CM. Sleep duration and risk of diabetes: Observational and Mendelian randomization studies. Prev Med 2019; 119:24-30. [PMID: 30508554 DOI: 10.1016/j.ypmed.2018.11.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022]
Abstract
Inadequate sleep could contribute to type 2 diabetes, but observational studies are inconsistent and open to biases, particularly from confounding. We used Mendelian randomization (MR) to obtain an unconfounded estimate of the effect of sleep duration on diabetes, fasting glucose (FG) and hemoglobin A1c (HbA1c), and an observation study to assess differences by sex. Using MR, we assessed the effects of genetically instrumented sleep on diabetes, based on 68 single nucleotide polymorphisms (SNPs), applied to the DIAbetes Genetics Replication and meta-analysis case (n = 26,676)-control (n = 132,532) study and on FG and HbA1c, based on 55 SNPs, applied to the Meta-Analyses of Glucose and Insulin-related traits Consortium (MAGIC) study of FG (n = 122,743) and HbA1c (n = 123,665). In the population-representative Hong Kong Chinese "Children of 1997" birth cohort we assessed whether associations of sleep duration at ~17.5 years with FG and HbA1c differed by sex. Using inverse variance weighting with multiplicative random effects, sleep duration was not associated with diabetes (odds ratio (OR) 0.85 per hour of sleep, 95% confidence interval (CI) 0.64 to 1.13), FG (-0.032 mmol/l per hour of sleep, 95% CI -0.126 to 0.063) or HbA1c (-0.022% per hour of sleep, 95% CI -0.069 to 0.024). In "Children of 1997", the associations of sleep duration with FG differed by sex (p for interaction 0.05) but not with HbA1c. Overall sleep duration does not appear to be related to diabetes, FG or HbA1c, but the possibility of sex differences merits investigation.
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Affiliation(s)
- Jiao Wang
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Man Ki Kwok
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Shiu Lun Au Yeung
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Albert Martin Li
- Department of Pediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Hugh Simon Lam
- Department of Pediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - June Yue Yan Leung
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Lai Ling Hui
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Gabriel Matthew Leung
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Catherine Mary Schooling
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; CUNY School of Public Health and Health Policy, New York, USA.
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Abstract
Sleep and pain share a bidirectional relationship. Therefore, it is important for practitioners managing patients experiencing either sleep and/or pain issues to recognize and understand this complex association from a neurobiological perspective involving neuroanatomic and neurochemical processes. Accounting for the influence of pain on the various aspects of sleep and understanding its impact on various orofacial pain disorders assists in developing a prudent management approach. Screening for sleep disorders benefits practitioners in identifying these individuals. Instituting evidence-based multidisciplinary management strategies using both behavioral and pharmacologic strategies enhances the delivery of appropriate care.
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Affiliation(s)
- Gary D Klasser
- Department of Diagnostic Sciences, Louisiana State University Health Sciences Center, School of Dentistry, 1100 Florida Avenue, Box 140, New Orleans, LA 70119, USA.
| | - Galit Almoznino
- Department of Oral Medicine, Sedation and Maxillofacial Imaging, Orofacial Sensory Clinic, Hebrew University-Hadassah School of Dental Medicine, PO Box 91120, Jerusalem, Israel; Division of Big Data, Department of Community Dentistry, Orofacial Sensory Clinic, Hebrew University-Hadassah School of Dental Medicine, PO Box 91120, Jerusalem, Israel
| | - Giulio Fortuna
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, Federico II University of Naples, Via Pansini, 5, Naples 80131, Italy
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Wang B, Jin X, Kuang X, Tian S. Chronic administration of parecoxib exerts anxiolytic-like and memory enhancing effects and modulates synaptophysin expression in mice. BMC Anesthesiol 2017; 17:152. [PMID: 29132299 PMCID: PMC5684753 DOI: 10.1186/s12871-017-0443-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 11/02/2017] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Previous studies have shown that cyclooxygenase-2, a key enzyme that converts arachidonic acid to prostaglandins, is involved in anxiety and cognitive processes, but few studies have investigated the effects of chronic administration of cyclooxygenase-2 inhibitors on anxiety, learning and memory under normal physiological conditions. The aim of the study was to investigate the effects of chronic administration of parecoxib, a cyclooxygenase-2 inhibitor, on anxiety behavior and memory performance under normal physiological conditions and to explore the possible neural mechanism underlying parecoxib-mediated effects. METHODS Adult male ICR mice were randomly divided into four groups: the control group and three parecoxib groups. Mice received normal saline or parecoxib (2.5, 5.0 or 10 mg/kg) intraperitoneal injection once a day for 21 days, respectively. Elevated plus-maze, novel object recognition and Y maze tests were conducted on day 23, 24 and 26, respectively. Four additional groups that received same drug treatment were used to measure synaptophysin protein levels by western blot and prostaglandin E2 (PGE2) levels by ELISA in the amygdala and hippocampus on day 26. RESULTS Chronic parecoxib exerted an anxiolytic-like effect in the plus-maze test test, and enhanced memory performance in the novel object recognition and Y maze tests. Western blot analysis showed that chronic parecoxib down-regulated synaptophysin levels in the amygdala and up-regulated synaptophysin levels in the hippocampus. ELISA assay showed that chronic parecoxib inhibited PGE2 in the hippocampus but not amygdala. CONCLUSIONS Chronic parecoxib exerts anxiolytic-like and memory enhancing effects, which might be mediated through differential modulation of synaptophysin and PGE2 in the amygdala and hippocampus.
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Affiliation(s)
- Bo Wang
- Department of Anesthesiology, First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Xin Jin
- Department of Anesthesiology, Nanhua Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Xin Kuang
- Department of Anesthesiology, First Affiliated Hospital, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
| | - Shaowen Tian
- Department of Physiology, College of Medicine, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
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A Study of the Association Between Sleep Bruxism, Low Quality of Sleep, and Degenerative Changes of the Temporomandibular Joint. J Craniofac Surg 2016; 26:2347-50. [PMID: 26501968 DOI: 10.1097/scs.0000000000002084] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
The aim of this study was to evaluate the presence of degenerative bone changes of the temporomandibular joint (TMJ) in individuals suffering from sleep bruxism (SB), associating these characteristics with the quality of sleep. For this, we followed the International Classification of Sleep Disorders for the diagnosis of SB, in addition to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) for the classification of TMD and cone beam computed tomography. It was found that 97.7% of the individuals with bruxism had at least 1 RDC/TMD group III diagnosis, 75.6% of the subjects considered their sleep quality as poor, and the largest group (23%) had centric bruxism. There was no significant association between the pattern of sleep quality (P = 0.36), the type of SB (P = 0.277), and the presence of degenerative changes of the TMJ. Regardless of the quality of sleep and the type of bruxism presented, the prevalence of degenerative bone disorders was high (67%) among women with a mean age of 46 years and a clinical diagnosis of SB.
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Jiang L, Lin X, Ji P. Effect of p38 Mitogen Activated Protein Kinase Inhibitor on Temporomandibular Joint Synovitis Induced by Occlusal Alteration. J Oral Maxillofac Surg 2016; 74:1131-9. [PMID: 26850876 DOI: 10.1016/j.joms.2015.12.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 12/28/2015] [Accepted: 12/30/2015] [Indexed: 01/15/2023]
Abstract
PURPOSE To investigate the alteration in rat temporomandibular joint (TMJ) synovial membrane induced by increased occlusal vertical dimension (iOVD) and to determine whether the p38 mitogen activated protein kinase (MAPK) signaling cascade is involved. MATERIALS AND METHODS Thirty-six rats were randomly divided into 3 groups: control + normal saline (NS; controls), iOVD + NS, and iOVD + SB203580 (a potent p38 MAPK inhibitor). Morphologic changes of synovial tissues were observed and scored. Activation levels of p38 MAPK and activating transcription factor-2 (ATF2) were detected by immunohistochemistry. Expression levels of interleukin-1β (IL-1β) and matrix metalloproteinase-3 (MMP-3) were measured by quantitative real-time polymerase chain reaction and immunohistochemistry. RESULTS Obvious synovitis was found in the iOVD group. P38 and ATF2 were activated, and mRNA and protein expression levels of IL-1β and MMP-3 were upregulated after iOVD. However, decreased synovial tissue inflammation and lower mRNA and protein levels of IL-1β and MMP-3 were observed in the iOVD + SB203580 group. CONCLUSION iOVD can induce temporomandibular joint synovitis, and the p38 MAPK signaling cascade might participate in and aggravate the process of articular inflammation.
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Affiliation(s)
- Linhong Jiang
- Dental student, Stomatological Hospital of Shandong University and the Shandong Province Key Laboratory of Oral Tissue Regeneration, Jinan City, Shandong Province, China
| | - Xuefen Lin
- Resident, Stomatological Hospital of Shandong University and the Shandong Province Key Laboratory of Oral Tissue Regeneration, Jinan City, Shandong Province, China
| | - Ping Ji
- Professor, Stomatological Hospital of Shandong University and the Shandong Province Key Laboratory of Oral Tissue Regeneration, Jinan City, Shandong Province, China.
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Song KW, Kim ME. Sleep Quality of Patients with Temporomandibular Disorders: Relationship to Clinical and Psychological Characteristics. ACTA ACUST UNITED AC 2015. [DOI: 10.14476/jomp.2015.40.4.155] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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