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Ekici Ö, Arıkan Söylemez ES. The association of T102C (rs6313) polymorphism in the 5-HT2A receptor gene with temporomandibular disorders and anxiety in a group of Turkish population. Cranio 2024:1-9. [PMID: 38899594 DOI: 10.1080/08869634.2024.2369729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
OBJECTIVE To investigate the relationship between T102C (rs6313) polymorphism in the 5-hydroxytryptamine receptor-2A (5HTR2A) gene and temporomandibular disorder (TMD) and anxiety. METHODS This observational case-control study included 80 patients and 70 healthy controls. TMD was diagnosed using the criteria for TMD (DC/TMD). Anxiety was assessed with the Beck anxiety scale. A genotyping study of HTRR2A T102C (rs6313) gene polymorphism was performed from genomic DNA isolated from blood. RESULTS The TMD group had higher anxiety scores than the control group (p < .05). The TMD group was similar to the control group regarding genotype and allele frequencies. However, the polymorphic CC genotype was more common in those with high anxiety (p < .05). CONCLUSION There was no clear evidence of an association between TMD and the T102C polymorphism in HTR2A and TMD. However, anxiety is closely related to the T102C polymorphism in HTR2A.
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Affiliation(s)
- Ömer Ekici
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
| | - Evrim Suna Arıkan Söylemez
- Department of Medical Biology, Faculty of Medicine, Afyonkarahisar Health Sciences University, Afyonkarahisar, Turkey
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Meyfarth SRS, Tavares JDS, Guimarães LDS, Silva EAB, Gaio DC, Ecker MB, Brancher JA, Küchler EC, Silva-Sousa AC, de Sousa-Neto MD, Antunes LAA, Antunes LS. Association between single-nucleotide polymorphisms in serotonin receptor 2A and melatonin receptor 1A genes and pain after root canal treatment. Int Endod J 2023; 56:1077-1091. [PMID: 37323077 DOI: 10.1111/iej.13946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 06/17/2023]
Abstract
AIM This study aimed to investigate whether single-nucleotide polymorphisms (SNPs) in the genes encoding 5-HTR2A (5-Hydroxytryptamine (serotonin) receptor 2A) and MTNR1A (melatonin receptor 1A) may contribute to postoperative pain perception after root canal treatment. We hypothesised that SNPs in HTR2A and MTNR1A genes were associated with postoperative pain after root canal treatment. METHODOLOGY This genetic cohort study enrolled patients with single-rooted teeth diagnosed with pulp necrosis and asymptomatic apical periodontitis before root canal treatment. Root canal treatment was performed in one session using a standardized protocol. Postoperative pain and tenderness were assessed using a visual analogue scale (recorded every day for 7 days and on the 14th and 30th days after root canal treatment). Genomic DNA was extracted from saliva and used to genotype the SNPs in HTR2A (rs4941573 and rs6313) and MTNR1A (rs6553010, rs6847693 and rs13140012) using real-time polymerase chain reaction. Genotypes were compared using univariate and multivariate Poisson regression with generalized estimating equations (p < .05). RESULTS In total, 108 patients were enrolled in this study. The SNPs rs6553010 (MTNR1A), rs4941573 and rs6313 (HTR2A) were associated with an increased risk of developing pain after root canal treatment (p < .05). CONCLUSIONS This study suggests that SNPs in HTR2A and MTNR1A influence pain response after root canal treatment.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Alice Corrêa Silva-Sousa
- Restorative Dentistry Department, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Manoel Damião de Sousa-Neto
- Restorative Dentistry Department, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Lívia Azeredo Alves Antunes
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Niterói, Brazil
- Clinical Research Unit, Fluminense Federal University, Rio de Janeiro, Brazil
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Nova Friburgo, Brazil
- Specific Formation Department, School of Dentistry of Nova Friburgo, Fluminense Federal University, Rio de Janeiro, Brazil
| | - Leonardo Santos Antunes
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Niterói, Brazil
- Clinical Research Unit, Fluminense Federal University, Rio de Janeiro, Brazil
- Postgraduate Program, School of Dentistry, Fluminense Federal University, Nova Friburgo, Brazil
- Specific Formation Department, School of Dentistry of Nova Friburgo, Fluminense Federal University, Rio de Janeiro, Brazil
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Campello CP, Lima ELSD, Fernandes RSM, Porto M, Muniz MTC. TNF-α levels and presence of SNP-308G/A of TNF-α gene in temporomandibular disorder patients. Dental Press J Orthod 2022; 27:e2220159. [PMID: 35239943 PMCID: PMC8896744 DOI: 10.1590/2177-6709.27.1.e2220159.oar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 01/11/2021] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Temporomandibular disorder (TMD) refers to a group of conditions that compromise the harmonious movement and function of the temporomandibular joint, masticatory muscles, and associated structures. The etiopathogenesis of TMD is multifactorial but not well-understood, with the role of genetic factors still being unclear. OBJECTIVE This review aims to summarize the results of studies that evaluated TNF-α levels and the -308G/A TNF-α polymorphism in TMD patients. This study emphasizes the importance of a more selective treatment involving TNF-α inhibitors that can potentially reduce inflammation and pain, and improve quality of life. METHODS The MEDLINE/PubMed database, Cochrane Library, and Web of Science database were searched for case-control studies published until September 2020 that compared levels of TNF-α or presence of its -308G/A polymorphism in TMD patients and healthy individuals. RESULTS Six case-control studies were identified with a total of 398 TMD patients, aged between 12 and 78 years. The control group consisted of 149 subjects, aged between 18 and 47 years. The occurrence of TMD was predominant in females. Majority of studies found high TNF-α levels in TMD patients, compared to the control group. One of these studies found a positive correlation between the GA genotype and the development of TMD. CONCLUSION Majority of the TMD patients showed elevated TNF-α levels, and a possible explanation for this could be the presence of the -308G/A polymorphism.
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Affiliation(s)
- Camilla Porto Campello
- Universidade Federal Rural de Pernambuco, Programa de Pós-Graduação em Biotecnologia, Rede Nordeste de Biotecnologia (Recife/PE, Brazil).,Universidade de Pernambuco, Hospital Universitário Oswaldo Cruz, Laboratório de Biologia Molecular-CEONHPE (Recife/PE, Brazil)
| | - Elker Lene Santos de Lima
- Universidade de Pernambuco, Faculdade de Ciências Médicas, Programa de Pós-Graduação em Ciências da Saúde (Recife/PE, Brazil).,Universidade de Pernambuco, Hospital Universitário Oswaldo Cruz, Laboratório de Biologia Molecular-CEONHPE (Recife/PE, Brazil)
| | | | - Mirza Porto
- Universidade Católica de Pernambuco, Assessoria de Treinamento, Estágio, Pesquisa e Integração - ASTEPI (Recife/PE, Brazil)
| | - Maria Tereza Cartaxo Muniz
- Universidade de Pernambuco, Hospital Universitário Oswaldo Cruz, Laboratório de Biologia Molecular-CEONHPE (Recife/PE, Brazil).,Universidade de Pernambuco, Instituto de Ciências Biológicas (Recife/PE, Brazil)
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Genetic predictors of human chronic pain conditions. Neuroscience 2016; 338:36-62. [DOI: 10.1016/j.neuroscience.2016.04.041] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 04/15/2016] [Accepted: 04/25/2016] [Indexed: 11/15/2022]
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Melis M, Di Giosia M. The role of genetic factors in the etiology of temporomandibular disorders: a review. Cranio 2016; 34:43-51. [DOI: 10.1179/2151090314y.0000000027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Visscher CM, Lobbezoo F. The evolution of thinking about temporomandibular pain. J Am Dent Assoc 2015; 146:925-6. [PMID: 26610838 DOI: 10.1016/j.adaj.2015.01.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 01/18/2015] [Indexed: 11/16/2022]
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da Silva MM, Albertini R, Leal-Junior ECP, de Tarso Camillo de Carvalho P, Silva JA, Bussadori SK, de Oliveira LVF, Casarin CAS, Andrade EL, Bocalini DS, Serra AJ. Effects of exercise training and photobiomodulation therapy (EXTRAPHOTO) on pain in women with fibromyalgia and temporomandibular disorder: study protocol for a randomized controlled trial. Trials 2015; 16:252. [PMID: 26040789 PMCID: PMC4464876 DOI: 10.1186/s13063-015-0765-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 05/19/2015] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Fibromyalgia (FM) is a syndrome most prevalent in women, in whom it is characterized mainly by chronic pain. An important issue is that many patients with FM are reported to have temporomandibular dysfunction (TMD), and the coexistence of these pathologies generates a clinical outcome of high complexity. The literature is unclear regarding an effective therapy for reducing pain in patients with both comorbidities. Exercise training and phototherapy (low-level laser therapy with light-emitting diode) are two of the approaches used to treat pain. Thus, the aim of this study is to assess the potential role of exercise training plus phototherapy in reducing chronic pain in women with FM and TMD. A further aim is to determine whether the interventions can improve quality of life and modulate endogenous serotonin. METHODS/DESIGN A randomized controlled clinical trial will be conducted. It will involve 60 women ≥ 35 years of age with a diagnosis of FM and TMD. After recruitment, patients will be randomly allocated to one of four groups: a control group (no intervention), a group that will receive a phototherapy intervention (PHO), a group that will be prescribed muscle-stretching, aerobic, and facial exercises (EXT), or a group that will receive phototherapy plus exercise interventions (PHO + EXT). The trial will last 10 weeks, and the following outcomes will be evaluated on two separate occasions (baseline and within 24 h after the last day of the protocol). Pain intensity will be analyzed using a visual analogue scale and the McGill Pain Questionnaire, and pain thresholds will be punctuated using a digital algometer. FM symptoms will be assessed using the Fibromyalgia Impact Questionnaire, and quality of life will be determined with the 36-item Short Form Health Survey. Serotonin levels will be evaluated in salivary samples using a competitive enzyme-linked immunosorbent assay. DISCUSSION This is the first randomized controlled trial in which the role of phototherapy, exercise training, and a combination of these interventions will be evaluated for chronic pain in patients with FM and TMD. The results will offer valuable clinical evidence for objective assessment of the potential benefits and risks of procedures. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02279225. Registered 27 October 2014.
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Affiliation(s)
| | - Regiane Albertini
- Nove de Julho University, Rua Vergueiro, 235, Liberdade, São Paulo, SP, 01504-000, Brazil.
| | | | | | - José Antonio Silva
- Nove de Julho University, Rua Vergueiro, 235, Liberdade, São Paulo, SP, 01504-000, Brazil.
| | - Sandra Kalil Bussadori
- Nove de Julho University, Rua Vergueiro, 235, Liberdade, São Paulo, SP, 01504-000, Brazil.
| | | | | | - Erinaldo Luiz Andrade
- Nove de Julho University, Rua Vergueiro, 235, Liberdade, São Paulo, SP, 01504-000, Brazil.
| | - Danilo Sales Bocalini
- Nove de Julho University, Rua Vergueiro, 235, Liberdade, São Paulo, SP, 01504-000, Brazil.
| | - Andrey Jorge Serra
- Nove de Julho University, Rua Vergueiro, 235, Liberdade, São Paulo, SP, 01504-000, Brazil.
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Visscher CM, Lobbezoo F. TMD pain is partly heritable. A systematic review of family studies and genetic association studies. J Oral Rehabil 2014; 42:386-99. [PMID: 25523980 DOI: 10.1111/joor.12263] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2014] [Indexed: 01/24/2023]
Abstract
The aim of this study was to describe the current knowledge on the role of heritability in TMD pain through a systematic review of the literature, including familiar aggregation studies and genetic association studies. For the systematic search of the literature, the PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses) guidelines were followed. In total, 21 studies were included in the review, including five familiar aggregation studies and 16 genetic association studies. From both familiar aggregation studies and genetic association studies, modest evidence for the role of heritability in TMD pain was found. The literature mainly suggests genetic contributions from candidate genes that encode proteins involved in the processing of painful stimuli from the serotonergic and catecholaminergic system. This systematic review shows that the evidence for the role of heritability in the development of TMD pain is cumulating.
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Affiliation(s)
- C M Visscher
- Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), MOVE Research Institute Amsterdam, University of Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
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