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Alshahrani AA, Saini RS, Okshah A, Alshadidi AAF, Kanji MA, Vyas R, Binduhayyim RIH, Ahmed N, Mosaddad SA, Heboyan A. The association between genetic factors and temporomandibular disorders: A systematic literature review. Arch Oral Biol 2024; 166:106032. [PMID: 38943858 DOI: 10.1016/j.archoralbio.2024.106032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 06/17/2024] [Indexed: 07/01/2024]
Abstract
OBJECTIVE This study aimed to investigate the correlation between genetic factors and the occurrence and progression of temporomandibular disorders (TMDs) using a comprehensive review and meta-analysis. DESIGN A comprehensive search was conducted using the ScienceDirect, PubMed, Cochrane Library, Dimensions, and Emerald databases. A reviewer selected the study using modified PICO criteria, considering human subjects with TMDs, comparing different genetic factors among TMD and non-TMD patients, and reporting TMD signs and symptoms as outcomes. The methodological standards of the eligible papers were assessed using the Joanna Briggs Institute (JBI) Critical Appraisal Checklist for Non-randomized Experimental Investigations. Information was collected methodically and examined. RESULTS The electronic database search yielded 851 articles, 19 of which were included in this study. The data analysis showed a significant influence of genetic factors, such as polymorphisms and gene differences, on the development of TMD signs and symptoms, such as myofascial pain, chronic pain, and disc displacement. In addition, gene polymorphism significantly influenced TMD development, with an odds ratio of 2.46 (1.93-3.14) and p of 0.00001. CONCLUSIONS Genetic factors significantly influenced TMD signs and symptoms, and genetic polymorphisms significantly influenced TMD onset and progression. Further research should be conducted in diverse settings with larger sample sizes to verify and validate these findings.
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Affiliation(s)
- Ahid Amer Alshahrani
- Department of Dental Technology, COAMS, King Khalid University, Abha, Saudi Arabia
| | - Ravinder S Saini
- Department of Dental Technology, COAMS, King Khalid University, Abha, Saudi Arabia
| | - Abdulmajeed Okshah
- Department of Dental Technology, COAMS, King Khalid University, Abha, Saudi Arabia
| | | | - Masroor Ahmed Kanji
- Department of Dental Technology, COAMS, King Khalid University, Abha, Saudi Arabia
| | - Rajesh Vyas
- Department of Dental Technology, COAMS, King Khalid University, Abha, Saudi Arabia
| | | | - Naseer Ahmed
- Department of Prosthodontics, Altamash Institute of Dental Medicine, Karachi, Pakistan
| | - Seyed Ali Mosaddad
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Department of Conservative Dentistry and Bucofacial Prosthesis, Faculty of Odontology, Complutense University of Madrid, Madrid, Spain; Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Artak Heboyan
- Department of Research Analytics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India; Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia; Department of Prosthodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
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Scher AI, Chai X, Johnson KW. Author Response to Comment on "Plasma calcitonin gene-related peptide and nerve growth factor as headache and pain biomarkers in recently deployed soldiers with and without a recent concussion". Headache 2024; 64:121. [PMID: 38238971 DOI: 10.1111/head.14665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024]
Affiliation(s)
- Ann I Scher
- Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA
| | - Xiyun Chai
- Precision Medicine Neuroscience, AbbVie, North Chicago, Illinois, USA
| | - Kirk W Johnson
- Pain Research, Eli Lilly and Company, Indianapolis, Indiana, USA
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Sangalli L, Eli B, Mehrotra S, Sabagh S, Fricton J. Calcitonin Gene-Related Peptide-Mediated Trigeminal Ganglionitis: The Biomolecular Link between Temporomandibular Disorders and Chronic Headaches. Int J Mol Sci 2023; 24:12200. [PMID: 37569575 PMCID: PMC10418780 DOI: 10.3390/ijms241512200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/22/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
A bidirectional causal relationship has been established between temporomandibular disorders (TMDs) and chronic headaches. Recent advances in the neurobiology of chronic pain offer a framework for understanding the comorbidity between these two conditions that might reside in the shared biomolecular mechanisms of peripheral and central sensitization. The initiation of these processes is inflammatory in nature and is most likely mediated by key molecules, including calcitonin gene-related peptide (CGRP). This scoping review proposes that CGRP-mediated neuroinflammation in the trigeminal ganglion may partly explain the biomolecular bidirectional link between TMDs and chronic headaches. Finally, clinical implications of this neuropathologic process are briefly discussed.
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Affiliation(s)
- Linda Sangalli
- College of Dental Medicine—Illinois, Midwestern University, Downers Grove, IL 60515, USA
| | - Bradley Eli
- Facial Pain Specialists, San Diego, CA 92121,USA; (B.E.); (S.M.); (S.S.)
| | - Sachi Mehrotra
- Facial Pain Specialists, San Diego, CA 92121,USA; (B.E.); (S.M.); (S.S.)
| | - Suzan Sabagh
- Facial Pain Specialists, San Diego, CA 92121,USA; (B.E.); (S.M.); (S.S.)
| | - James Fricton
- Division of TMD and Orofacial Pain, University of Minnesota Schoof of Dentistry, Minneapolis, MN 55455, USA
- Minnesota Head and Neck Pain Clinic, Plymouth, MN 55447, USA
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