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Chen X, Cheng Z, Xu J, Wang Q, Zhao Z, Jiang Q. Causal effects of denture wearing on epigenetic age acceleration and the mediating pathways: a mendelian randomization study. BMC Oral Health 2024; 24:788. [PMID: 39003475 PMCID: PMC11246574 DOI: 10.1186/s12903-024-04578-y] [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: 02/11/2024] [Accepted: 07/05/2024] [Indexed: 07/15/2024] Open
Abstract
BACKGROUND The epigenetic-age acceleration (EAA) represents the difference between chronological age and epigenetic age, reflecting accelerated biological aging. Observational studies suggested that oral disorders may impact DNA methylation patterns and aging, but their causal relationship remains largely unexplored. This study aimed to investigate potential causal associations between dental traits and EAA, as well as to identify possible mediators. METHODS Using summary statistics of genome-wide association studies of predominantly European ancestry, we conducted univariable and multivariable Mendelian randomization (MR) to estimate the overall and independent effects of ten dental traits (dentures, bleeding gums, painful gums, loose teeth, toothache, ulcers, periodontitis, number of teeth, and two measures of caries) on four EAA subtypes (GrimAge acceleration [GrimAA], PhenoAge acceleration [PhenoAA], HannumAge acceleration [HannumAA] and intrinsic EAA [IEAA]), and used two-step Mendelian randomization to evaluate twelve potential mediators of the associations. Comprehensive sensitivity analyses were used to verity the robustness, heterogeneity, and pleiotropy. RESULTS Univariable inverse variance weighted MR analyses revealed a causal effect of dentures on greater GrimAA (β: 2.47, 95% CI: 0.93-4.01, p = 0.002), PhenoAA (β: 3.00, 95% CI: 1.15-4.85, p = 0.001), and HannumAA (β: 1.96, 95% CI: 0.58-3.33, p = 0.005). In multivariable MR, the associations remained significant after adjusting for periodontitis, caries, number of teeth and bleeding gums. Three out of 12 aging risk factors were identified as mediators of the association between dentures and EAA, including body mass index, body fat percentage, and waist circumference. No evidence for reverse causality and pleiotropy were detected (p > 0.05). CONCLUSIONS Our findings supported the causal effects of genetic liability for denture wearing on epigenetic aging, with partial mediation by obesity. More attention should be paid to the obesity-monitoring and management for slowing EAA among denture wearers.
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Affiliation(s)
- Xin Chen
- Department of Oral and Maxillofacial Surgery, Jiangyin People's Hospital Affiliated to Nantong University, No.163, Shoushan Road, Jiangyin, 214400, Jiangsu Province, China
| | - Zheng Cheng
- Department of Oral and Maxillofacial Surgery, Jiangyin People's Hospital Affiliated to Nantong University, No.163, Shoushan Road, Jiangyin, 214400, Jiangsu Province, China
| | - Junyu Xu
- Department of Oral and Maxillofacial Surgery, Jiangyin People's Hospital Affiliated to Nantong University, No.163, Shoushan Road, Jiangyin, 214400, Jiangsu Province, China
| | - Qianyi Wang
- Department of Cardiology, Jiangyin People's Hospital Affiliated to Nantong University, No.163, Shoushan Road, Jiangyin, 214400, Jiangsu Province, China.
| | - Zhibai Zhao
- Department of Oral Mucosal Diseases, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Qianglin Jiang
- Department of Oral and Maxillofacial Surgery, Jiangyin People's Hospital Affiliated to Nantong University, No.163, Shoushan Road, Jiangyin, 214400, Jiangsu Province, China.
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Macias-Gómez A, Jiménez-Balado J, Fernández-Pérez I, Suárez-Pérez A, Vallverdú-Prats M, Guimaraens L, Vivas E, Saldaña J, Giralt-Steinhauer E, Guisado-Alonso D, Villalba G, Gracia MP, Esteller M, Rodriguez-Campello A, Jiménez-Conde J, Ois A, Cuadrado-Godia E. The influence of epigenetic biological age on key complications and outcomes in aneurysmal subarachnoid haemorrhage. J Neurol Neurosurg Psychiatry 2024; 95:675-681. [PMID: 38302433 DOI: 10.1136/jnnp-2023-332889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/16/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND We aimed to investigate the association between DNA-methylation biological age (B-age) calculated as age acceleration (ageAcc) and key aneurysmal subarachnoid haemorrhage (aSAH) complications such as vasospasm, delayed cerebral ischaemia (DCI), poor outcome, and mortality. METHODS We conducted a prospective study involving 277 patients with aSAH. B-age was determined in whole blood samples using five epigenetic clocks: Hannum's, Horvath's, Levine's and both versions of Zhang's clocks. Age acceleration was calculated as the residual obtained from regressing out the effect of C-age on the mismatch between C-age and B-age. We then tested the association between ageAcc and vasospasm, DCI and 12-month poor outcome (mRS 3-5) and mortality using linear regression models adjusted for confounders. RESULTS Average C-age was 55.0 years, with 66.8% being female. Vasospasm occurred in 143 cases (51.6%), DCI in 70 (25.3%) and poor outcomes in 99 (35.7%), with a mortality rate of 20.6%. Lower ageAcc was linked to vasospasm in Horvath's and Levine's clocks, whereas increased ageAcc was associated with 12-month mortality in Hannum's clock. No significant differences in ageAcc were found for DCI or poor outcome at 12 months with other clocks. CONCLUSIONS Our study indicates that B-age is independently associated with vasospasm and 12-month mortality in patients with aSAH. These findings underscore the potential role of epigenetics in understanding the pathophysiology of aSAH-related complications and outcomes.
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Affiliation(s)
- Adrià Macias-Gómez
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Joan Jiménez-Balado
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Isabel Fernández-Pérez
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Antoni Suárez-Pérez
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Marta Vallverdú-Prats
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Leopoldo Guimaraens
- J.J. Merland of Therapeutic Neuroangiography, Hospital del Mar, Barcelona, Catalunya, Spain
| | - Elio Vivas
- J.J. Merland of Therapeutic Neuroangiography, Hospital del Mar, Barcelona, Catalunya, Spain
| | - Jesus Saldaña
- J.J. Merland of Therapeutic Neuroangiography, Hospital del Mar, Barcelona, Catalunya, Spain
| | - Eva Giralt-Steinhauer
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Daniel Guisado-Alonso
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
| | - Gloria Villalba
- Neurosurgery Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Pompeu Fabra University, Barcelona, Catalunya, Spain
| | - Maria-Pilar Gracia
- Pompeu Fabra University, Barcelona, Catalunya, Spain
- Intensive Care Department, Hospital del Mar, Barcelona, Catalunya, Spain
| | - Manel Esteller
- Cancer Epigenetics Group, Research Institute Against Leukemia Josep Carreras, Badalona, Catalunya, Spain
- Physiological Sciences Department, School of Medicine and Health Sciences, University of Barcelona, Barcelona, Catalunya, Spain
| | - Ana Rodriguez-Campello
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
- Pompeu Fabra University, Barcelona, Catalunya, Spain
| | - Jordi Jiménez-Conde
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
- Pompeu Fabra University, Barcelona, Catalunya, Spain
| | - Angel Ois
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
- Pompeu Fabra University, Barcelona, Catalunya, Spain
| | - Elisa Cuadrado-Godia
- Neurology Department, Hospital del Mar, Barcelona, Catalunya, Spain
- Neurovascular Research Group, Hospital del Mar Medical Research Institute, Barcelona, Catalunya, Spain
- Pompeu Fabra University, Barcelona, Catalunya, Spain
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