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Lehodey A, Kaliman P, Palix C, de Florès R, Touron E, Turpin AL, Fauvel S, Mézenge F, Landeau B, Chocat A, Vrillon A, Paquet C, Vivien D, de La Sayette V, Chételat G, Poisnel G. Association of critically short telomeres with brain and blood markers of ageing and Alzheimer's disease in older adults. Alzheimers Res Ther 2024; 16:269. [PMID: 39707531 DOI: 10.1186/s13195-024-01635-0] [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: 09/11/2024] [Accepted: 12/02/2024] [Indexed: 12/23/2024]
Abstract
BACKGROUND Accumulation of critically short telomeres (CST) is implicated in decreased tissular regenerative capacity and increased susceptibility to degenerative diseases such as Alzheimer's disease (AD). Telomere shortening has also been associated with age-related brain changes. However, it remains unclear whether CST accumulation is directly associated with AD markers or instead amplifies age-related effects, potentially increasing susceptibility of developing AD in cognitively healthy older adults. METHODS This cross-sectional study used baseline data of 129 community-dwelling cognitively healthy older adults from the Age-Well trial (NCT02977819), aged 65 years and older enrolled between 2016 and 2018, in France. Using linear regressions, we analyzed the relationship between an innovative marker of telomere shortening, the percentage of CST (%CST), structural, functional and molecular neuroimaging outcomes, and multiple blood-based biomarkers related to AD pathophysiology. The effect of apolipoprotein E ε4 genotype (APOE4) was assessed on these relationships using interaction analysis. RESULTS A higher %CST was associated with lower global kurtosis fractional anisotropy (β = -.230; P = .010), particularly in frontal and temporal regions. A higher %CST was also related to higher plasma levels of Neurofilament light chain (β = .195; P = .020) and a lower subiculum volume (β = -.206; P = .020), although these associations did not meet the threshold for multiple comparisons. %CST was not associated with AD-related neuroimaging markers, including the AD-sensitive gray matter pattern (β = -.060; P = .441), glucose metabolism pattern (β = -.099; P = .372), brain perfusion pattern (β = -.106; P = .694) or hippocampus volume (β = -.106; P = .194). In APOE4 carriers, higher %CST was associated with lower subiculum (β = -.423; P = 0.003), DG (β = -.410; P = 0.018) and CA1 volumes (β = -.373; P = 0.024), even though associations with DG and CA1 volumes did not survive multiple comparison. CONCLUSIONS Although an increase in %CST does not appear to be directly linked to the pathophysiology of AD in cognitively healthy older adults, it could heighten the susceptibility of APOE4 carriers to develop AD plausibly due to greater vulnerability to age-related effects. However, longitudinal studies would be necessary to determine whether %CST influences the development and progression of AD later in life.
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Affiliation(s)
- Asrar Lehodey
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Perla Kaliman
- Faculty of Health Sciences, Universitat Oberta de Catalunya, Rambla del Poblenou, 154-156, Sant Martí, 08018, Barcelona, Espagne
| | - Cassandre Palix
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Robin de Florès
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Edelweiss Touron
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Anne-Laure Turpin
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Séverine Fauvel
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Florence Mézenge
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Brigitte Landeau
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Anne Chocat
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Agathe Vrillon
- Université de Paris, Inserm U1144, 4 Avenue de L'Observatoire, 75006, Paris, France
- AP-HP Nord, Hôpital Lariboisière Fernand-Widal, GHU, Université de Paris, Centre de Neurologie Cognitive/CMRR Paris Nord Île de France, 2 Rue Ambroise Paré, 75010, Paris, France
| | - Claire Paquet
- Université de Paris, Inserm U1144, 4 Avenue de L'Observatoire, 75006, Paris, France
- AP-HP Nord, Hôpital Lariboisière Fernand-Widal, GHU, Université de Paris, Centre de Neurologie Cognitive/CMRR Paris Nord Île de France, 2 Rue Ambroise Paré, 75010, Paris, France
| | - Denis Vivien
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
- Clinical Research Department, CHU Caen-Normandie, Avenue de La Côte de Nacre CS 30001, 14000, Caen, France
| | - Vincent de La Sayette
- CHU Caen-Normandie, Neurology Department, Avenue de La Côte de Nacre CS 30001, 14000, Caen, France
| | - Gaël Chételat
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France
| | - Géraldine Poisnel
- Normandie Univ, UNICAEN, INSERM, U1237, PhIND "Physiopathology and Imaging of Neurological Disorders", NeuroPresage Team, Cyceron, Boulevard Henri Becquerel, BP 5229, 14074, Caen Cedex, France.
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Wang L, Koenig HG, He Z, Sun X, Shohaib SA, Wang Z. Religiosity and Telomere Length: Moderating Effect of Religiosity on the Relationship Between High-Risk Polymorphisms of the Apolipoprotein E and TOMM40 Gene and Telomere Length. J Appl Gerontol 2019; 39:627-634. [PMID: 31339412 DOI: 10.1177/0733464819865415] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective: The current study seeks to examine the relationship between religiosity and telomere length (TL) in an older Chinese Muslim sample and to explore the moderating effect of religiosity on the relationship between high-risk polymorphisms and TL. Methods: A cross-sectional study of 1,692 community-dwelling adults aged 55 or older was conducted. Apolipoprotein E and TOMM40 (rs2075650) gene polymorphisms and TL were determined using standard procedures. Ordinal logistic regression was used to examine the associations. Results: Religiosity was significantly and positively related to TL. A significant interaction emerged between religiosity and the rs2075650 G polymorphism in predicting TL. Stratified multivariate analyses demonstrated that the relationship between the rs2075650 G state and TL was particularly strong among those who were more religious, as hypothesized. Conclusion: The findings revealed that religiosity may influence cellular aging in part by modifying the effect that high-risk genes have on increasing vulnerability to dementia and cognitive impairment.
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Affiliation(s)
- Liqun Wang
- Ningxia Medical University, Yinchuan, China
| | - Harold G Koenig
- Ningxia Medical University, Yinchuan, China.,Duke University Medical Center, Durham, NC, USA.,King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Xiaoya Sun
- Ningxia Medical University, Yinchuan, China
| | | | - Zhizhong Wang
- Ningxia Medical University, Yinchuan, China.,Zunyi Medical University, China
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