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Lohman T, Bains G, Cole S, Gharibvand L, Berk L, Lohman E. High-Intensity interval training reduces transcriptomic age: A randomized controlled trial. Aging Cell 2023; 22:e13841. [PMID: 37078430 PMCID: PMC10265161 DOI: 10.1111/acel.13841] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/22/2023] [Accepted: 03/25/2023] [Indexed: 04/21/2023] Open
Abstract
While the relationship between exercise and life span is well-documented, little is known about the effects of specific exercise protocols on modern measures of biological age. Transcriptomic age (TA) predictors provide an opportunity to test the effects of high-intensity interval training (HIIT) on biological age utilizing whole-genome expression data. A single-site, single-blinded, randomized controlled clinical trial design was utilized. Thirty sedentary participants (aged 40-65) were assigned to either a HIIT group or a no-exercise control group. After collecting baseline measures, HIIT participants performed three 10 × 1 HIIT sessions per week for 4 weeks. Each session lasted 23 min, and total exercise duration was 276 min over the course of the 1-month exercise protocol. TA, PSS-10 score, PSQI score, PHQ-9 score, and various measures of body composition were all measured at baseline and again following the conclusion of exercise/control protocols. Transcriptomic age reduction of 3.59 years was observed in the exercise group while a 3.29-years increase was observed in the control group. Also, PHQ-9, PSQI, BMI, body fat mass, and visceral fat measures were all improved in the exercise group. A hypothesis-generation gene expression analysis suggested exercise may modify autophagy, mTOR, AMPK, PI3K, neurotrophin signaling, insulin signaling, and other age-related pathways. A low dose of HIIT can reduce an mRNA-based measure of biological age in sedentary adults between the ages of 40 and 65 years old. Other changes in gene expression were relatively modest, which may indicate a focal effect of exercise on age-related biological processes.
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Affiliation(s)
- Trevor Lohman
- Loma Linda University School of Allied Health ProfessionsLoma LindaCaliforniaUSA
| | - Gurinder Bains
- Loma Linda University School of Allied Health ProfessionsLoma LindaCaliforniaUSA
| | - Steve Cole
- UCLA David Geffen School of MedicineLos AngelesCaliforniaUSA
| | - Lida Gharibvand
- Loma Linda University School of Allied Health ProfessionsLoma LindaCaliforniaUSA
| | - Lee Berk
- Loma Linda University School of Allied Health Professions, and School of MedicineLoma LindaCaliforniaUSA
| | - Everett Lohman
- Loma Linda University School of Allied Health ProfessionsLoma LindaCaliforniaUSA
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2
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Marriott RJ, Murray K, Budgeon CA, Codd V, Hui J, Arscott GM, Beilby JP, Hankey GJ, Wittert GA, Wu FCW, Yeap BB. Serum testosterone and sex hormone-binding globulin are inversely associated with leucocyte telomere length in men: a cross-sectional analysis of the UK Biobank study. Eur J Endocrinol 2023; 188:7031076. [PMID: 36751991 DOI: 10.1093/ejendo/lvad015] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/15/2022] [Accepted: 02/07/2023] [Indexed: 02/09/2023]
Abstract
OBJECTIVE Older men on an average have lower testosterone concentrations, compared with younger men, and more age-related comorbidities. Whether lower testosterone concentrations contribute to biological ageing remains unclear. Shorter telomeres are a marker for biological age. We tested the hypothesis that testosterone concentrations are associated with leucocyte telomere length (LTL), in middle- to older-aged men. DESIGN Cross-sectional analysis of the UK Biobank study, involving community-dwelling men aged 40-69 years. METHODS Serum testosterone and sex hormone-binding globulin (SHBG) were assayed. Free testosterone was calculated (cFT). Leucocyte telomere length was measured using polymerase chain reaction. Multivariable models were used to assess associations of hormones with standardised LTL. RESULTS In 167 706 men, median age 58 years, adjusting for sociodemographic, lifestyle, and medical factors, total testosterone was inversely associated with standardised LTL, which was 0.09 longer (95% confidence interval [CI], 0.08-0.10, P < .001) in men with total testosterone at median of lowest quintile [Q1] vs highest [Q5]. This relationship was attenuated after additional adjustment for SHBG (0.03 longer, CI = 0.02-0.05, P = .003). The association between cFT and LTL was similar in direction but lower in magnitude. In multivariable analysis, SHBG was inversely associated with standardised LTL, which was 0.12 longer (CI = 0.10-0.13, P < .001) for SHBG at median Q1 vs Q5. Results were similar with testosterone included in the model (0.10 longer, CI = 0.08-0.12, P < .001). CONCLUSIONS Total testosterone and SHBG were independently and inversely associated with LTL. Men with higher testosterone or SHBG had shorter telomeres, arguing against a role for testosterone to slow biological ageing in men.
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Affiliation(s)
- Ross J Marriott
- School of Population and Global Health, University of Western Australia, Perth 6009, Australia
| | - Kevin Murray
- School of Population and Global Health, University of Western Australia, Perth 6009, Australia
| | - Charley A Budgeon
- School of Population and Global Health, University of Western Australia, Perth 6009, Australia
- Department of Cardiovascular Sciences, University of Leicester, Leicester LE1 7RH, United Kingdom
| | - Veryan Codd
- Department of Cardiovascular Sciences, University of Leicester, Leicester LE1 7RH, United Kingdom
- National Institute for Health Research Leicester Biomedical Research Centre, Glenfield Hospital, Leicester LE3 9QP, United Kingdom
| | - Jennie Hui
- PathWest Laboratory Medicine, Sir Charles Gairdner Hospital, Perth 6009, Australia
| | - Gillian M Arscott
- PathWest Laboratory Medicine, Sir Charles Gairdner Hospital, Perth 6009, Australia
| | - John P Beilby
- School of Biomedical Sciences, University of Western Australia, Perth 6009, Australia
| | - Graeme J Hankey
- Medical School, University of Western Australia, Perth 6009, Australia
| | - Gary A Wittert
- Freemasons Centre for Male Health and Wellbeing, University of Adelaide, Adelaide 5005, Australia
| | - Frederick C W Wu
- Division of Endocrinology, Diabetes and Gastroenterology, School of Medical Sciences, University of Manchester, Manchester M13 9PL, United Kingdom
| | - Bu B Yeap
- Medical School, University of Western Australia, Perth 6009, Australia
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth 6150, Australia
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Sagris M, Theofilis P, Antonopoulos AS, Tsioufis K, Tousoulis D. Telomere Length: A Cardiovascular Biomarker and a Novel Therapeutic Target. Int J Mol Sci 2022; 23:ijms232416010. [PMID: 36555658 PMCID: PMC9781338 DOI: 10.3390/ijms232416010] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/04/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
Coronary artery disease (CAD) is a multifactorial disease with a high prevalence, particularly in developing countries. Currently, the investigation of telomeres as a potential tool for the early detection of the atherosclerotic disease seems to be a promising method. Telomeres are repetitive DNA sequences located at the extremities of chromosomes that maintain genetic stability. Telomere length (TL) has been associated with several human disorders and diseases while its attrition rate varies significantly in the population. The rate of TL shortening ranges between 20 and 50 bp and is affected by factors such as the end-replication phenomenon, oxidative stress, and other DNA-damaging agents. In this review, we delve not only into the pathophysiology of TL shortening but also into its association with cardiovascular disease and the progression of atherosclerosis. We also provide current and future treatment options based on TL and telomerase function, trying to highlight the importance of these cutting-edge developments and their clinical relevance.
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Lan B, Bai Y, Chang X, Zhang X. Independent and joint effect of relative telomere length and type 2 diabetes on all-cause mortality in American adults. Front Endocrinol (Lausanne) 2022; 13:1035017. [PMID: 36440190 PMCID: PMC9685657 DOI: 10.3389/fendo.2022.1035017] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022] Open
Abstract
OBJECTIVE The joint effect of leukocyte telomere length (LTL) and type 2 diabetes (T2D) on the risk of all-cause death has been sparsely explored. The study designed to examine the joint effect of T2D and LTL on the probability of death in American adults. METHODS A cohort of 6862 adults with LTL measurements and with or without T2D from the NHANES 1999-2002 with follow-up information until 2015 was studied. Quantitative PCR was used to measure the length of telomeres relative to standard reference DNA (T/S ratio). Individuals were grouped into three tertiles according to the LTL levels, with the first tertile demonstrating the lowest one and used as the reference group. The effects of LTL and T2D status on death were evaluated using Kaplan-Meier curves along with log-rank test. Three Cox proportional hazards models with adjustment for various confounders were used to examine the links between TL and all-cause death possibility using adjusted hazard ratios (HRs). RESULTS Adults in the sample averaged 45.54 years of age, with 49.51% being male. After a median follow-up period of 14.4 years, 1543 (22.5%) individuals died from all cause. The probability of all-cause mortality was higher among individuals with LTL in the highest tertile than individuals in the lowest tertile (aHR = 0.89; 95%CI: 0.77-1.03); however, the difference did not reach the level of statistical significance (P = 0.11). Conversely, the individuals with T2D had a higher probability of death than individuals without (aHR = 1.26; 95%CI: 1.06-1.50; P = 0.0092). When LTL and T2D status were investigated jointly, subjects in the highest TLT tertile and with T2D had the highest probability of mortality compared with their counterparts (aHR = 1.34; 95%CI: 1.07-1.68; P = 0.0101). However, there was no independent effect of low TLT on mortality as demonstrated among individuals with diabetes (aHR = 1.14; 95%CI: 0.95-1.38; P = 0.1662). CONCLUSION The joint effect of TLT and T2D was larger than the sum of the independent effects on the risk of all-cause death. Participants with high TLT and diabetes showed the highest possibility of death compared with other groups.
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Affiliation(s)
- Beidi Lan
- Department of Structural Heart Disease, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yuan Bai
- Department of Cardiology, Changhai Hospital of The Navy Military Medical University, Shanghai, China
| | - Xiaoyi Chang
- Department of State-Owned Assets Management, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaoxia Zhang
- Department of Pharmacy, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Accelerated biological aging secondary to cardiometabolic risk factors is a predictor of cardiovascular mortality: a systematic review and meta-analysis. Can J Cardiol 2021; 38:365-375. [PMID: 34822967 DOI: 10.1016/j.cjca.2021.10.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Chronological aging is one of the major risk factors of cardiovascular disease (CVD); however, the impact of biological aging on CVD and outcomes remain poorly understood. Herein, we evaluated the association between leukocyte telomere length (LTL), a marker of biological age, and cardiovascular (CV) outcomes. METHODS We searched PubMed, Embase, Ovid Medline, and Web of Science Core Collection for the studies on the association between LTL and myocardial infarction (MI), CV death, and/or CVD risk factors from inception to July 2020. Extracted data were pooled in a random-effects meta-analysis and summarized as risk ratio (RR) and corresponding 95% confidence interval (95% CI) per LTL tertiles. RESULTS A total of 32 studies (n=144,610 participants) were included. In a pooled analysis of MI and LTL in a multivariate-adjusted model, the shortest LTL was associated with a 39% higher risk of MI (RR: 1.39, 95% CI: 1.16-1.67, p<0.001). After adjusting for chronological age and traditional covariance, we demonstrated a 28% increased risk of CV death in the shortest tertile of LTL (RR: 1.28, 95% CI:1.05-1.56, p=0.01). Analysis of the studies investigating the association between CV risk factors and LTL (N=7) demonstrated that diabetes mellitus is associated with a 46% increased risk of LTL attrition (RR: 1.46, 95% CI 1.46-2.09, p=0.039). CONCLUSION This study demonstrates a strong association between LTL, a marker of biological aging, and the risk of MI and CV death. Cardiometabolic risk factors contribute to telomere attrition and therefore accelerates biological aging. PROSPERO ID CRD42018112579.
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Lohman T, Bains G, Berk L, Lohman E. Predictors of Biological Age: The Implications for Wellness and Aging Research. Gerontol Geriatr Med 2021; 7:23337214211046419. [PMID: 34595331 PMCID: PMC8477681 DOI: 10.1177/23337214211046419] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 07/14/2021] [Accepted: 08/18/2021] [Indexed: 12/26/2022] Open
Abstract
As healthspan and lifespan research breakthroughs have become more commonplace, the need for valid, practical markers of biological age is becoming increasingly paramount. The accessibility and affordability of biological age predictors that can reveal information about mortality and morbidity risk, as well as remaining years of life, has profound clinical and research implications. In this review, we examine 5 groups of aging biomarkers capable of providing accurate biological age estimations. The unique capabilities of these biomarkers have far reaching implications for the testing of both pharmaceutical and non-pharmaceutical interventions designed to slow or reverse biological aging. Additionally, the enhanced validity and availability of these tools may have increasingly relevant clinical value. The authors of this review explore those implications, with an emphasis on lifestyle modification research, and provide an overview of the current evidence regarding 5 biological age predictor categories: Telomere length, composite biomarkers, DNA methylation “epigenetic clocks,” transcriptional predictors of biological age, and functional age predictors.
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Affiliation(s)
- Trevor Lohman
- School of Allied Health Professions, Loma Linda University, Loma Linda, CA, USA
| | - Gurinder Bains
- School of Allied Health Professions, Loma Linda University, Loma Linda, CA, USA
| | - Lee Berk
- School of Allied Health Professions, Loma Linda University, Loma Linda, CA, USA
| | - Everett Lohman
- School of Allied Health Professions, Loma Linda University, Loma Linda, CA, USA
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7
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Pavanello S, Campisi M, Grassi A, Mastrangelo G, Durante E, Veronesi A, Gallucci M. Longer Leukocytes Telomere Length Predicts a Significant Survival Advantage in the Elderly TRELONG Cohort, with Short Physical Performance Battery Score and Years of Education as Main Determinants for Telomere Elongation. J Clin Med 2021; 10:3700. [PMID: 34441997 PMCID: PMC8397185 DOI: 10.3390/jcm10163700] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/16/2021] [Accepted: 08/17/2021] [Indexed: 01/06/2023] Open
Abstract
Leukocyte telomere length (LTL) represents a key integrating component of the cumulative effects of environmental, lifestyle, and genetic factors. A question, however, remains on whether LTL can be considered predictive for a longer and healthier life. Within the elderly prospective TRELONG cohort (n = 612), we aimed to investigate LTL as a predictor of longevity and identify the main determinants of LTL among many different factors (physiological and lifestyle characteristics, physical performance and frailty measures, chronic diseases, biochemical measurements and apolipoprotein E genotyping). We found an ever-increasing relationship between LTL quartiles and survival. Hazard ratio analysis showed that for each unit increase in LTL and Short Physical Performance Battery (SPPB) scores, the mortality risk was reduced by 22.41% and 8.78%, respectively. Conversely, male gender, Charlson Comorbidity Index, and age threatened survival, with mortality risk growing by 74.99%, 16.57% and 8.5%, respectively. Determinants of LTL elongation were SPPB scores (OR = 1.1542; p = 0.0066) and years of education (OR = 1.0958; p = 0.0065), while male gender (OR = 0.4388; p = 0.0143) and increased Disease Count Index (OR = 0.6912; p = 0.0066) were determinants of LTL attrition. Longer LTL predicts a significant survival advantage in elderly people. By identifying determinants of LTL elongation, we provided additional knowledge that could offer a potential translation into prevention strategies.
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Affiliation(s)
- Sofia Pavanello
- Section of Occupational Medicine, Department of Cardiac, Thoracic, Vascular Sciences & Public Health, University of Padova, 35128 Padova, Italy; (M.C.); (G.M.)
- Unit of Occupational Medicine, University Hospital of Padova, 35128 Padova, Italy
| | - Manuela Campisi
- Section of Occupational Medicine, Department of Cardiac, Thoracic, Vascular Sciences & Public Health, University of Padova, 35128 Padova, Italy; (M.C.); (G.M.)
| | - Alberto Grassi
- Department of Statistical Sciences, University of Padua, 35121 Padova, Italy;
| | - Giuseppe Mastrangelo
- Section of Occupational Medicine, Department of Cardiac, Thoracic, Vascular Sciences & Public Health, University of Padova, 35128 Padova, Italy; (M.C.); (G.M.)
| | - Elisabetta Durante
- Immunohematology and Transfusional Medicine Service, Local Health Authority n. 2 Marca Trevigiana, 31100 Treviso, Italy; (E.D.); (A.V.)
| | - Arianna Veronesi
- Immunohematology and Transfusional Medicine Service, Local Health Authority n. 2 Marca Trevigiana, 31100 Treviso, Italy; (E.D.); (A.V.)
| | - Maurizio Gallucci
- Cognitive Impairment Center, Local Health Authority n. 2 Marca Trevigiana, 31100 Treviso, Italy;
- Foundation for Interdisciplinary Geriatric Research (FORGEI), 31100 Treviso, Italy
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8
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Kodali HP, Borrell LN. Telomere length and mortality risk among adults in the United States: The role of age and race and ethnicity. Ann Epidemiol 2021; 63:68-74. [PMID: 34343614 DOI: 10.1016/j.annepidem.2021.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 07/23/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE To examine whether there was an association of leucocyte telomere length (LTL) with all-cause, cardiovascular (CVD)- and cancer-specific mortality risks among U.S. adults; and whether these associations vary with race and ethnicity and age. METHODS We conducted a retrospective cohort using data from the National Health and Nutrition Examination Survey, 1999 to 2002 and the 2015 Linked Mortality File on adults 25 years or older (n = 6,526 and 1,753 deaths). Cox proportional hazards regression was used to quantify the association of LTL with each outcome adjusting for baseline sociodemographic and health-related characteristics. We tested a three-way interaction for LTL, race andethnicity, and age groups. RESULTS After adjustment, the rate of dying for all-cause and CVD-specific mortality was at least 24% lower for a 1 kilobase increase in LTL. When compared with adults with the shortest telomere, the rates of dying were at least 17% lower for all-cause and CVD-specific mortality for those with longer telomere. For all-cause mortality, increase LTL was associated with lower rate of dying among non-Hispanic Blacks 45 years or older, and non-Hispanic Whites 65 years or older. CONCLUSIONS We found that increase telomere length was associated with lower all-cause and CVD-specific mortality rates among U.S. adults. For all-cause mortality, this association varies within racial andethnic groups across age groups.
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Affiliation(s)
- Hanish P Kodali
- Department of Epidemiology and Biostatistics, Graduate School of Public Health & Health Policy, City University of New York, New York, NY
| | - Luisa N Borrell
- Department of Epidemiology and Biostatistics, Graduate School of Public Health & Health Policy, City University of New York, New York, NY.
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Samavat H, Luu HN, Beckman KB, Jin A, Wang R, Koh WP, Yuan JM. Leukocyte telomere length, cancer incidence and all-cause mortality among Chinese adults: Singapore Chinese Health Study. Int J Cancer 2021; 148:352-362. [PMID: 33459354 PMCID: PMC10693991 DOI: 10.1002/ijc.33211] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 01/16/2023]
Abstract
Telomeres play a key role in chromosomal maintenance and stability. To date, few studies have investigated the association of leukocyte telomere length with risk of cancer incidence and all-cause mortality in a large prospective cohort, particularly of the Asian population. Relative telomere lengths in genomic DNA from peripheral blood samples were quantified using a validated quantitative real-time PCR among 26 540 middle-aged or older Chinese adults. Hazard ratios (HRs) and 95% confidence intervals (CIs) of cancer and deaths by quintiles of telomere length were calculated using the Cox proportional hazards regression method with adjustment for age, sex and other potential confounders. After baseline blood collection, 4353 persons developed cancer and 7609 died. Participants with the longest decile of telomeres had a 26% (95% CI: 11%-44%) higher risk of total cancer incidence compared to the shortest decile after controlling for age, sex and other potential founders (Ptrend < .0001). In contrast, longer telomeres were associated with lower risk of all-cause mortality (HR = 0.93; 95% CI: 0.84-1.03), noncancer death (HR = 0.81; 95% CI: 0.71-0.92), specifically, death from chronic obstructive pulmonary disease and pneumonia (HR = 0.79, 95% CI: 0.70-0.89) and digestive diseases (HR = 0.60, 95% CI: 0.42-0.88). Our findings demonstrated that longer telomeres are associated with increased risk of cancer development overall and several common cancer types including breast, rectal, prostate, pancreatic cancer and lung adenocarcinoma. Our study also confirmed that longer telomeres are associated with a reduced risk of noncancer related death.
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Affiliation(s)
- Hamed Samavat
- Department of Clinical and Preventive Nutrition Sciences, School of Health Professions, Rutgers University, Newark, New Jersey
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hung N. Luu
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kenneth B. Beckman
- University of Minnesota Genomics Center, University of Minnesota, Minneapolis, Minnesota
| | - Aizhen Jin
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
| | - Renwei Wang
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Woon-Puay Koh
- Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
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10
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Crocco P, De Rango F, Dato S, Rose G, Passarino G. Telomere length as a function of age at population level parallels human survival curves. Aging (Albany NY) 2021; 13:204-218. [PMID: 33431711 PMCID: PMC7835060 DOI: 10.18632/aging.202498] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 12/23/2020] [Indexed: 01/20/2023]
Abstract
Telomeres are subject to age related shortening which can be accelerated by oxidative stress and inflammation. Many studies have reported an inverse correlation between telomere length and survival, but such inverse correlation has not been always confirmed in different populations. We analyzed the trend of Leukocyte Telomere Length (LTL) as a function of age in a cohort of 516 subjects aged 65-106 years from Southern Italy. The trend of LTL obtained was quite similar to demographic survival curves reported with data of western societies. We observed a decrease of LTL after 70 years of age and then an increase after 92 years, in agreement with the sharp decrease of survival after 70 years of age and its increase after 90 years, due to the deceleration of mortality at old ages. Our data suggest that a generalized LTL attrition after 70 years of age, associated to organismal decline, affects most of the population. Such generalized attrition may exacerbate senescence in these subjects, predisposing them to high mortality risk. Conversely, the subjects with better physical conditions, experience a lower attrition and, consequently, a delayed senescence, contributing to the deceleration of mortality which has been observed among very old subjects in modern societies.
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Affiliation(s)
- Paolina Crocco
- Department of Biology, Ecology and Earth Science, University of Calabria, Rende 87036, Italy
| | - Francesco De Rango
- Department of Biology, Ecology and Earth Science, University of Calabria, Rende 87036, Italy
| | - Serena Dato
- Department of Biology, Ecology and Earth Science, University of Calabria, Rende 87036, Italy
| | - Giuseppina Rose
- Department of Biology, Ecology and Earth Science, University of Calabria, Rende 87036, Italy
| | - Giuseppe Passarino
- Department of Biology, Ecology and Earth Science, University of Calabria, Rende 87036, Italy
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El Assar M, Angulo J, Carnicero JA, Walter S, García-García FJ, Rodríguez-Artalejo F, Rodríguez-Mañas L. Association between telomere length, frailty and death in older adults. GeroScience 2020; 43:1015-1027. [PMID: 33190211 PMCID: PMC8110679 DOI: 10.1007/s11357-020-00291-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/20/2020] [Indexed: 12/27/2022] Open
Abstract
Frailty is considered a clinical marker of functional ageing. Telomere length (TL) has been proposed as a biomarker of biological age but its role in human ageing is controversial. The main aim of the study was to evaluate the longitudinal association of TL with incident frailty and mortality in two cohorts of Spanish community-dwelling older adults. TL was determined at baseline in blood samples from older adults included in Toledo Study for Healthy Aging and ENRICA cohorts while frailty was determined by frailty phenotype (FP) at baseline and at follow-up (3.5 years). Deaths occurring during follow-up were also recorded. Associations of TL with frailty and mortality were analysed by logistic regression with progressive adjustment. Data were separately analysed in the two cohorts and in all subjects by performing a meta-analysis. TL was not different between frail and non-frail subjects. Longer telomeres were not associated with lower risk of prevalent frailty. Similarly, TL at baseline failed to predict incident frailty (OR: 1.04 [0.88-1.23]) or even the development of a new FP criterion (OR: 0.97 [0.90-1.05]) at follow-up. Lack of association was also observed when analysing the development of specific FP criteria. Finally, while frailty at baseline was significantly associated with higher risk of death at follow-up (OR: 4.08 [1.97-8.43], p < 0.001), TL did not significantly change the mortality risk (OR: 1.05 [0.94-1.16]). Results show that TL does not predict incident frailty or mortality in older adults. This suggests that TL is not a reliable biomarker of functional age.
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Affiliation(s)
- Mariam El Assar
- Fundación de Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Angulo
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
- Servicio de Histología-Investigación, Unidad de Investigación Traslacional en Cardiología (IRYCIS-UFV), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - José A Carnicero
- Fundación de Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain
| | - Stefan Walter
- Fundación de Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain
| | | | - Fernando Rodríguez-Artalejo
- Department of Preventive Medicine and Public Health, Universidad Autónoma de Madrid/IdiPaz, CIBERESP, and IMDEA Food Institute, Madrid, Spain
| | - Leocadio Rodríguez-Mañas
- Fundación de Investigación Biomédica del Hospital Universitario de Getafe, Getafe, Spain.
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Madrid, Spain.
- Servicio de Geriatría, Hospital Universitario de Getafe, Getafe, Spain.
- Division of Geriatric Medicine, Hospital Universitario de Getafe, Ctra de Toledo km 12,500, 28905, Getafe, Spain.
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12
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Herrmann W, Herrmann M. The Importance of Telomere Shortening for Atherosclerosis and Mortality. J Cardiovasc Dev Dis 2020; 7:jcdd7030029. [PMID: 32781553 PMCID: PMC7570376 DOI: 10.3390/jcdd7030029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/11/2022] Open
Abstract
Telomeres are the protective end caps of chromosomes and shorten with every cell division. Short telomeres are associated with older age and adverse lifestyle factors. Leucocyte telomere length (LTL) has been proposed as a biomarker of biological age. The shortening of LTL with age is the result of the end-replication problem, environmental, and lifestyle-related factors. Epidemiologic studies have shown that LTL predicts cardiovascular disease, all-cause mortality, and death from vascular causes. Age appears to be an important co-variate that explains a substantial fraction of this effect. Although it has been proposed that short telomeres promote atherosclerosis and impair the repair of vascular lesions, existing results are inconsistent. Oxidative stress and chronic inflammation can both accelerate telomere shortening. Multiple factors, including homocysteine (HCY), vitamin B6, and vitamin B12 modulate oxidative stress and inflammation through direct and indirect mechanisms. This review provides a compact overview of telomere physiology and the utility of LTL measurements in atherosclerosis and cardiovascular disease. In addition, it summarizes existing knowledge regarding the impact of oxidative stress, inflammation, HCY, and B-vitamins on telomere function.
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Affiliation(s)
- Wolfgang Herrmann
- Department of Clinical Chemistry, Medical School of the Saarland University, 66421 Homburg, Saar, Germany;
| | - Markus Herrmann
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036 Graz, Austria
- Correspondence: or ; Tel.: +43-316-385-13145; Fax: +43-316-385-13430
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13
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Zhang S, Li R, Yang Y, Chen Y, Yang S, Li J, Wu C, Kong T, Liu T, Cai J, Fu L, Zhao Y, Hui R, Zhang W. Longitudinal Association of Telomere Attrition with the Effects of Antihypertensive Treatment and Blood Pressure Lowering. Aging Dis 2020; 11:494-508. [PMID: 32489697 PMCID: PMC7220288 DOI: 10.14336/ad.2019.0721] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/21/2019] [Indexed: 11/01/2022] Open
Abstract
Leukocytes telomere length has been associated with hypertension, but, whether longitudinal telomeres change could serve as a useful predictive tool in hypertension remains uncertain. This study aimed to examine the longitudinal trajectory of leukocytes telomere length in a population-based prospective study of 1,108 individuals with hypertension. Leukocytes telomere length were measured at baseline and again after a median 2.2 (range 1.5-2.4) years of follow-up. Age as an independent predictor was inversely associated with baseline telomeres and follow-up telomeres. Annual telomere attrition rate was calculated as (follow-up telomeres-baseline telomeres)/follow-up years, and participants were categorized into the shorten and the lengthen groups. Results showed that telomere lengthening was significantly correlated with decreased systolic blood pressure (SBP) (β=-3.28; P=0.02) and pulse pressure (PP) (β=-2.53; P=0.02), and the differences were respectively -3.3 mmHg (95%CI, -6.2 to -0.3; P=0.03) in ∆SBP and -2.4 mmHg (95%CI, -4.9 to -0.1; P=0.04) in ∆PP between two groups after adjustment for vascular risk factors and baseline blood pressures. When stratified by age and gender, the correlations were observed in women and patients ≤60 years. Furthermore, among patients using calcium channel blocker (CCB) and angiotensin receptor blocker (ARB), those with telomeres lengthening showed a significantly lower level of ∆SBP and ∆PP. There was no correlation between telomere attrition and incidence of cardiovascular events. Our data indicated that increased telomere length of leukocytes was associated with decreased SBP and PP, particularly for patients who received CCB and ARB, supporting that telomere attrition may provide new sight in clinical intervention for hypertension.
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Affiliation(s)
- Shuyuan Zhang
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Rongxia Li
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Yunyun Yang
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Yu Chen
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Shujun Yang
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Jian Li
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Cunjin Wu
- 2 The Second Hospital of Tianjin Medical University, Tianjin, China
| | - Tao Kong
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Tianlong Liu
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Jun Cai
- 3 Hypertension Centre, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Li Fu
- 4Benxi Railway Hospital, Liaoning, China
| | - Yanan Zhao
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Rutai Hui
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
| | - Weili Zhang
- 1State Key Laboratory of Cardiovascular Disease, FuWai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College & Chinese Academy of Medical Sciences, Beijing, China
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14
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de Baca TC, Prather AA, Lin J, Sternfeld B, Adler N, Epel ES, Puterman E. Chronic psychosocial and financial burden accelerates 5-year telomere shortening: findings from the Coronary Artery Risk Development in Young Adults Study. Mol Psychiatry 2020; 25:1141-1153. [PMID: 31455861 PMCID: PMC7044034 DOI: 10.1038/s41380-019-0482-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/09/2019] [Accepted: 05/21/2019] [Indexed: 01/24/2023]
Abstract
Leukocyte telomere length, a marker of immune system function, is sensitive to exposures such as psychosocial stressors and health-maintaining behaviors. Past research has determined that stress experienced in adulthood is associated with shorter telomere length, but is limited to mostly cross-sectional reports. We test whether repeated reports of chronic psychosocial and financial burden is associated with telomere length change over a 5-year period (years 15 and 20) from 969 participants in the Coronary Artery Risk Development in Young Adults (CARDIA) Study, a longitudinal, population-based cohort, ages 18-30 at time of recruitment in 1985. We further examine whether multisystem resiliency, comprised of social connections, health-maintaining behaviors, and psychological resources, mitigates the effects of repeated burden on telomere attrition over 5 years. Our results indicate that adults with high chronic burden do not show decreased telomere length over the 5-year period. However, these effects do vary by level of resiliency, as regression results revealed a significant interaction between chronic burden and multisystem resiliency. For individuals with high repeated chronic burden and low multisystem resiliency (1 SD below the mean), there was a significant 5-year shortening in telomere length, whereas no significant relationships between chronic burden and attrition were evident for those at moderate and higher levels of resiliency. These effects apply similarly across the three components of resiliency. Results imply that interventions should focus on establishing strong social connections, psychological resources, and health-maintaining behaviors when attempting to ameliorate stress-related decline in telomere length among at-risk individuals.
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Affiliation(s)
- Tomás Cabeza de Baca
- Division of Cardiology, 400 Parnassus Ave., AC-16, Box 0369, San Francisco, CA 94143, USA, University of California, San Francisco
| | - Aric A. Prather
- Department of Psychiatry, University of California San Francisco
| | - Jue Lin
- Biochemistry and Biophysics, University of California, San Francisco
| | | | - Nancy Adler
- Department of Psychiatry, University of California San Francisco
| | - Elissa S. Epel
- Department of Psychiatry, University of California San Francisco
| | - Eli Puterman
- School of Kinesiology, University of British Columbia, Vancouver, War Memorial Gymnasium, Room 210, 6081 University Boulevard, Vancouver, BC V6T 1Z1
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15
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Aerobic capacity and telomere length in human skeletal muscle and leukocytes across the lifespan. Aging (Albany NY) 2020; 12:359-369. [PMID: 31901896 PMCID: PMC6977669 DOI: 10.18632/aging.102627] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/18/2019] [Indexed: 02/06/2023]
Abstract
A reduction in aerobic capacity and the shortening of telomeres are hallmarks of the ageing process. We examined whether a lower aerobic capacity is associated with shorter TL in skeletal muscle and/or leukocytes, across a wide age range of individuals. We also tested whether TL in human skeletal muscle (MTL) correlates with TL in leukocytes (LTL). Eighty-two recreationally active, healthy men from the Gene SMART cohort (31.4±8.2 years; body mass index (BMI)=25.3±3.3kg/m2), and 11 community dwelling older men (74.2±7.5years-old; BMI=28.7±2.8kg/m2) participated in the study. Leukocytes and skeletal muscle samples were collected at rest. Relative telomere length (T/S ratio) was measured by RT-PCR. Associations between TL, aerobic capacity (VO2 peak and peak power) and age were assessed with robust linear models. Older age was associated with shorter LTL (45% variance explained, P<0.001), but not MTL (P= 0.7). Aerobic capacity was not associated with MTL (P=0.5), nor LTL (P=0.3). MTL and LTL were correlated across the lifespan (rs=0.26, P=0.03). In healthy individuals, age explain most of the variability of LTL and this appears to be independent of individual aerobic capacity. Individuals with longer LTL also have a longer MTL, suggesting that there might be a shared molecular mechanism regulating telomere length.
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16
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Shen G, Huang JY, Huang YQ, Feng YQ. The Relationship between Telomere Length and Cancer Mortality: Data from the 1999-2002 National Healthy and Nutrition Examination Survey (NHANES). J Nutr Health Aging 2020; 24:9-15. [PMID: 31886802 DOI: 10.1007/s12603-019-1265-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVES The association between telomeres length (TL) and cancer mortality is uncertain. We tested the hypotheses that long TL are associated with reduced cancer mortality. DESIGN Prospective cohort study. SETTING the National Health and Nutrition Survey (NHANES, 1999-2002). PARTICIPANTS The analytic sample included adults (n = 7183) who had TL measurements. MEASUREMENTS DNA was obtained via blood samples. Telomere length was assessed using the quantitative polymerase chain reaction method. RESULTS During follow-up (0.08-12.7 person-years, median = 9.5 years), we observed 195 participants had cancer as causes of death. TL was negatively corelated with age, body mass index (BMI), systolic blood pressure (SBP), C-reactive protein (CRP), race, diabetes, hypertension, cardiovascular diseases (CVD) and cancer mortality, conversely, positively corelated with alcohol use, but not related to diastolic blood pressure (DBP) and smoking. Kaplan-Meier analysis revealed that TL was significantly associated with cancer mortality (log-rank, P <0.001). CONCLUSIONS Our study expands upon previous evidence of a relationship between TL and cancer mortality. TL may be a useful tool for evaluating risk of cancer mortality in American adults.
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Affiliation(s)
- G Shen
- YingQing Feng, Department of Cardiology, Guangdong Cardiovascular Institute, Hypertension Research Laboratory, Guangdong Provincial People's Hospital, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, 510080 Guangzhou, China,
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17
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The association of mean telomere length with all-cause, cerebrovascular and cardiovascular mortality. Biosci Rep 2019; 39:220736. [PMID: 31647542 PMCID: PMC6822529 DOI: 10.1042/bsr20192306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/17/2019] [Accepted: 10/07/2019] [Indexed: 01/09/2023] Open
Abstract
Mean telomere length (MLT) is a marker of cell aging and may associate with age-related diseases. However, the relationship between MLT and mortality risk remains unclear. We aimed to investigate the relationship between MLT and all-cause, cerebrovascular and cardiovascular mortality among adults in United States. We analyzed data were from National Health and Nutrition Examination Survey (NHANES, 1999–2002) with follow-up data through 31 December 2015. Based on MLT, participants were categorized into low, middle and high groups. Multivariate Cox proportional hazards regression, subgroup analysis and generalized additive model (GAM) were performed by using hazard ratios (HRs) and 95% confidence intervals (CIs). A total of 7827 participants were included in analysis (48.18% male). After 158.26 months of follow-up on average, there were 1876 (23.97%), 87 (1.11%) and 243 (3.10%) onset of all-cause, cerebrovascular and cardiovascular mortality. After adjustment for potential confounders, using the low group as the reference, HRs for all-cause (0.87 and 0.86), cerebrovascular (0.75 and 0.75) and cardiovascular mortality (1.01 and 0.69) for the middle to high groups were not statistically significant (all P>0.05 for trend). MLT was non-linearly related to all-cause mortality but not to cerebrovascular and cardiovascular mortality. It was the first study to demonstrate the non-linear relationship between MLT and all-cause mortality.
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18
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Scarabino D, Peconi M, Pelliccia F, Corbo RM. Analysis of the Association Between TERC and TERT Genetic Variation and Leukocyte Telomere Length and Human Lifespan-A Follow-Up Study. Genes (Basel) 2019; 10:genes10020082. [PMID: 30691026 PMCID: PMC6409517 DOI: 10.3390/genes10020082] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 01/14/2019] [Accepted: 01/23/2019] [Indexed: 12/19/2022] Open
Abstract
We investigated the possible influence of TERC and TERT genetic variation and leukocyte telomere length (LTL) on human lifespan. Four polymorphisms of TERT and three polymorphisms of TERC were examined in a sample of elderly subjects (70⁻100 years). After nine years of follow-up, mortality data were collected, and sub-samples of long-lived/not long-lived were defined. TERT VNTR MNS16A L/L genotype and TERT rs2853691 A/G or G/G genotypes were found to be associated with a significantly higher risk to die before the age of 90 years, and with a significantly lower age at death. The association between lifespan and LTL at baseline was analyzed in a subsample of 163 subjects. Age at baseline was inversely associated with LTL (p < 0.0001). Mean LTL was greater in the subjects still living than in those no longer living at follow-up (0.79 T/S ± 0.09 vs 0.63 T/S ± 0.08, p < 0.0001). Comparison of age classes showed that, among the 70⁻79-year-olds, the difference in mean LTL between those still living and those no longer living at follow-up was greater than among the 80⁻90-year-olds. Our data provide evidence that shorter LTL at baseline may predict a shorter lifespan, but the reliability of LTL as a lifespan biomarker seems to be limited to a specific age (70⁻79 years).
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Affiliation(s)
- Daniela Scarabino
- CNR Institute of Molecular Biology and Pathology, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Martina Peconi
- CNR Institute of Translational Pharmacology, Via Fosso del Cavaliere 100, 00133 Rome, Italy.
| | - Franca Pelliccia
- Department of Biology and Biotechnology, La Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
| | - Rosa Maria Corbo
- CNR Institute of Molecular Biology and Pathology, P.le Aldo Moro 5, 00185 Rome, Italy.
- Department of Biology and Biotechnology, La Sapienza University, P.le Aldo Moro 5, 00185 Rome, Italy.
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Wang Q, Zhan Y, Pedersen NL, Fang F, Hägg S. Telomere Length and All-Cause Mortality: A Meta-analysis. Ageing Res Rev 2018; 48:11-20. [PMID: 30254001 DOI: 10.1016/j.arr.2018.09.002] [Citation(s) in RCA: 193] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 08/09/2018] [Accepted: 09/10/2018] [Indexed: 01/06/2023]
Abstract
Telomere attrition is associated with increased morbidity and mortality of various age-related diseases. Reports of association between telomere length (TL) and all-cause mortality remain inconsistent. In the present study, a meta-analysis was performed using published cohort studies and un-published data from the Swedish Twin Registry (STR). Twenty-five studies were included: four STR cohorts (12,083 individuals with 2517 deaths) and 21 published studies. In the STR studies, one standard deviation (SD) decrement of leukocyte TL corresponded to 13% increased all-cause mortality risk (95% confidence interval [CI]: 7%-19%); individuals in the shortest TL quarter had 44% higher hazard (95% CI: 27%-63%) than those in the longest quarter. Meta-analysis of all eligible studies (121,749 individuals with 21,763 deaths) revealed one SD TL decrement-associated hazard ratio of 1.09 (95% CI: 1.06-1.13); those in the shortest TL quarter had 26% higher hazard (95% CI: 15%-38%) compared to the longest quarter, although between-study heterogeneity was observed. Analyses stratified by age indicated that the hazard ratio was smaller in individuals over 80 years old. In summary, short telomeres are associated with increased all-cause mortality risk in the general population. However, TL measurement techniques and age at measurement contribute to the heterogeneity of effect estimation.
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Affiliation(s)
- Qi Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Techology, Wuhan, 430030, China; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, Stockholm 17177, Sweden.
| | - Yiqiang Zhan
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, Stockholm 17177, Sweden
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, Stockholm 17177, Sweden
| | - Fang Fang
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, Stockholm 17177, Sweden
| | - Sara Hägg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Nobels väg 12A, Stockholm 17177, Sweden
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20
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Leukocyte telomere length and risk of coronary heart disease and stroke mortality: prospective evidence from a Russian cohort. Sci Rep 2018; 8:16627. [PMID: 30413768 PMCID: PMC6226519 DOI: 10.1038/s41598-018-35122-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 10/29/2018] [Indexed: 11/29/2022] Open
Abstract
Previous studies suggest that reduced leukocyte telomere length (LTL) is related to higher risk of mortality and several chronic conditions, including coronary heart disease (CHD) and stroke. However, the consistency of this association differs across populations. We investigated the relationship of LTL with CHD, stroke and all-cause mortality together with non-fatal CHD and stroke events in a Russian cohort with a mean age of 58 years at baseline. Data from 1,144 individuals in the Russian subset of the Health Alcohol and Psychosocial Factors in Eastern Europe (HAPIEE) cohort study were used. The associations between LTL at baseline and fatal/non-fatal outcomes during 12 years of follow-up were assessed using multivariable Cox regression models, which yielded adjusted hazard ratios (HR). Compared to individuals in the shortest tertile, those in the longest tertile of LTL had a 42% lower risk of death from all-causes (HR 0.58; 95% CI: 0.39–0.88) and 58% lower risk of death from CHD (HR 0.42; 95%CI: 0.19–0.97). Similar patterns of association were identified for non-fatal and combined fatal/non-fatal CHD and stroke events but the associations were weaker. Consistent with results of previous studies in Western populations, this cohort of elderly Russian adults found an inverse association between LTL and CHD and all-cause mortality. These findings reinforce the hypothesis that LTL may play (or be a marker of) an aetiological role in human health across diverse populations.
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21
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Zhan Y, Liu XR, Reynolds CA, Pedersen NL, Hägg S, Clements MS. Leukocyte Telomere Length and All-Cause Mortality: A Between-Within Twin Study With Time-Dependent Effects Using Generalized Survival Models. Am J Epidemiol 2018; 187:2186-2191. [PMID: 29961868 DOI: 10.1093/aje/kwy128] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/18/2018] [Indexed: 01/01/2023] Open
Abstract
Although previous studies examining leukocyte telomere length (LTL) and all-cause mortality controlled for several confounders, the observed association could be biased due to unmeasured confounders, including familial factors. We aimed to examine the association of LTL with all-cause mortality in a Swedish twin sample while adjusting for familial factors and allowing for time-dependent effects. A total of 366 participants (174 twin pairs and 18 individuals) were recruited from the Swedish Twin Registry. LTL was assessed using the Southern blot method. All-cause mortality data were obtained through linkage with the Swedish Population Registry, updated through November 15, 2017. To control for familial factors within twin pairs, we applied a between-within shared frailty model based on generalized survival models. Overall, 115 (31.4%) participants were men and 251 (68.6%) were women. The average age of the study participants when blood was drawn was 79.1 years, and follow-up duration ranged from 10 days to 25.7 years (mean = 10.2 years). During the follow-up period, 341 (93.2%) participants died. Shorter LTL was associated with higher mortality rates when controlling for familial factors in the between-within shared frailty model. We found significant time-dependent effects of LTL on all-cause mortality, where the mortality rate ratios were attenuated with increasing age.
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Affiliation(s)
- Yiqiang Zhan
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Xing-Rong Liu
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Chandra A Reynolds
- Department of Psychology, College of Humanities, Arts, and Social Sciences, University of California, Riverside, Riverside, California
| | - Nancy L Pedersen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Sara Hägg
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Mark S Clements
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
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Abstract
Telomere length measurement is increasingly recognized as a clinical gauge for age-related disease risk. There are several methods for studying blood telomere length (BTL) as a clinical biomarker. The first is an observational study approach, which directly measures telomere lengths using either cross-sectional or longitudinal patient cohorts and compares them to a population of age- and sex-matched individuals. These direct traceable measurements can be considered reflective of an individual's current health or disease state. Escalating interest in personalized medicine, access to high-throughput genotyping and resulting acquisition of large volumes of genetic data corroborates the second method, Mendelian randomization (MR). MR employs telomere length-associated genetic variants to indicate predisposition to disease risk based on the genomic composition of the individual. When assessed from cells in the bloodstream, telomeres can show variation from their genetically predisposed lengths due to environmental-induced changes. These alterations in telomere length act as an indicator of cellular health, which, in turn, can provide disease risk status. Overall, BTL measurement is a dynamic marker of biological health and well-being that together with genetically defined telomere lengths can provide insights into improved healthcare for the individual.
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23
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Doherty JA, Grieshober L, Houck JR, Barnett MJ, Tapsoba JDD, Thornquist M, Wang CY, Goodman GE, Chen C. Telomere Length and Lung Cancer Mortality among Heavy Smokers. Cancer Epidemiol Biomarkers Prev 2018; 27:829-837. [PMID: 29743162 PMCID: PMC6035074 DOI: 10.1158/1055-9965.epi-17-1183] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/08/2018] [Accepted: 05/04/2018] [Indexed: 01/15/2023] Open
Abstract
Background: Accumulating evidence suggests that short telomere length is associated with increased overall mortality, but the relationship with cancer mortality is less clear. We examined whether telomere length (global, and chromosome arm 5p- and 13q-specific) is associated with lung cancer mortality among cases from the β-Carotene and Retinol Efficacy Trial of heavy smokers.Methods: Telomere length was measured on average 6 years before diagnosis for 788 lung cancer cases. Adjusted Cox proportional hazards models of all-cause and lung cancer-specific mortality were assessed for lung cancer overall and by histotype.Results: Short telomere length was associated with increased mortality for small cell lung cancer (SCLC), particularly stage III/IV SCLC [HR and 95% confidence interval for shortest vs. longest telomere length tertile: 3.32 (1.78-6.21)]. Associations were strongest for those randomized to the active intervention and when telomere length was measured ≤5 years before diagnosis. All-cause mortality patterns were similar. Short chromosome 5p telomere length was suggestively associated with lung cancer mortality, but there was no association with chromosome 13q telomere length.Conclusions: Our large prospective study suggests that among heavy smokers who developed lung cancer, short prediagnosis telomere length is associated with increased risk of death from SCLC.Impact: This is the first study to examine telomere length and mortality in lung cancer cases by histotype. If the association between short telomere length and SCLC mortality is replicated, elucidation of mechanisms through which telomere length influences survival for this highly aggressive cancer may inform more effective use of telomere-targeted therapeutics. Cancer Epidemiol Biomarkers Prev; 27(7); 829-37. ©2018 AACR.
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Affiliation(s)
- Jennifer A Doherty
- Department of Population Health Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah.
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Laurie Grieshober
- Department of Population Health Sciences, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah
| | - John R Houck
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Matthew J Barnett
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Jean De Dieu Tapsoba
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Mark Thornquist
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Ching-Yun Wang
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Gary E Goodman
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Chu Chen
- Program in Epidemiology, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, Washington
- Department of Otolaryngology: Head and Neck Surgery, School of Medicine, University of Washington, Seattle, Washington
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24
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Pusceddu I, Kleber M, Delgado G, Herrmann W, März W, Herrmann M. Telomere length and mortality in the Ludwigshafen Risk and Cardiovascular Health study. PLoS One 2018; 13:e0198373. [PMID: 29920523 PMCID: PMC6007915 DOI: 10.1371/journal.pone.0198373] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 05/17/2018] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Short telomeres have been associated with adverse lifestyle factors, cardiovascular risk factors and age-related diseases, including cardiovascular disease (CVD), myocardial infarction, atherosclerosis, hypertension, diabetes, and also with mortality. However, previous studies report conflicting results. OBJECTIVES The aim of the present study has been to investigate the involvement of telomere length in all-cause and CVD mortality in subjects hospitalized for diagnostic coronary angiography of the Ludwigshafen Risk and Cardiovascular Health (LURIC) study. METHODS Relative telomere length (RTL) was measured with a Q-PCR based method in 3,316 participants of the LURIC study. Age-corrected RTL was calculated as the ratio between RTL and age. Median follow-up was 9.9 years. Cox regression and Kaplan-Maier analyses were performed to evaluate the role of RTL for all-cause and cardiovascular mortality. RESULTS RTL correlated negatively with age (r = -0.09; p<0.001). In surviving patients the correlation between age and RTL was statistically significant (r = -0.088; p<0.001), but not in patients who died during follow-up (r = -0.043; p = 0.20). Patients in quartiles 2-4 of RTL had a lower hazard ratio for all-cause mortality (HR:0.822; 95%CI 0.712-0.915; p = 0.008) and CVD-mortality (HR:0.836; 95%CI 0.722-0.969; p = 0.017) when compared to those in the 1st quartile. Adjustment for major cardiovascular risk factors did not change this result, however additional adjustment for age attenuated this effect. Patients in the 4th quartile of age-corrected RTL compared to those in the 1st quartile had a lower hazard ratio for all-cause mortality, even with adjustment for major cardiovascular risk factors. CONCLUSIONS The present study supports the hypothesis that short telomere length increases the risk of all-cause and CVD mortality. Age appears to be an important co-variate that explains a substantial fraction of this effect. It remains unclear whether short telomeres contribute directly to the increase in mortality or if they are simply a surrogate marker for other adverse processes of aging.
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Affiliation(s)
- Irene Pusceddu
- Laboratory of Clinical Pathology, Hospital of Bolzano, Bolzano, Italy
| | - Marcus Kleber
- Medical Clinic V (Nephrology, Hypertensiology, Rheumatology, Endocrinology, Diabetology), Medical Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
| | - Graciela Delgado
- Medical Clinic V (Nephrology, Hypertensiology, Rheumatology, Endocrinology, Diabetology), Medical Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
| | - Wolfgang Herrmann
- Departement of Clinical Chemistry, University of Saarland, Homburg, Germany
| | - Winfried März
- Medical Clinic V (Nephrology, Hypertensiology, Rheumatology, Endocrinology, Diabetology), Medical Faculty of Mannheim, University of Heidelberg, Mannheim, Germany
- Medical University of Graz, Clinical Institute of Medical and Chemical Laboratory Diagnostics, Graz, Austria
- Synlab Academy, Synlab Holding Deutschland GmbH, Mannheim, Germany
| | - Markus Herrmann
- Laboratory of Clinical Pathology, Hospital of Bolzano, Bolzano, Italy
- Medical University of Graz, Clinical Institute of Medical and Chemical Laboratory Diagnostics, Graz, Austria
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25
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Bonfigli AR, Spazzafumo L, Prattichizzo F, Bonafè M, Mensà E, Micolucci L, Giuliani A, Fabbietti P, Testa R, Boemi M, Lattanzio F, Olivieri F. Leukocyte telomere length and mortality risk in patients with type 2 diabetes. Oncotarget 2018; 7:50835-50844. [PMID: 27437767 PMCID: PMC5239440 DOI: 10.18632/oncotarget.10615] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 07/01/2016] [Indexed: 12/22/2022] Open
Abstract
Leukocyte telomere length (LTL) shortening is found in a number of age-related diseases, including type 2 diabetes (T2DM). In this study its possible association with mortality was analyzed in a sample of 568 T2DM patients (mean age 65.9 ± 9 years), who were followed for a median of 10.2 years (interquartile range 2.2). A number of demographic, laboratory and clinical parameters determined at baseline were evaluated as mortality risk factors. LTL was measured by quantitative real-time PCR and reported as T/S (telomere-to-single copy gene ratio). Age, gender, creatinine, diabetes duration at baseline, and LTL were significantly different between T2DM patients who were dead and alive at follow-up. In the Cox regression analysis adjusted for the confounding variables, shorter LTL, older age, and longer disease duration significantly increased the risk of all-cause mortality (HR = 3.45, 95%CI 1.02-12.5, p = 0.004). Kaplan-Maier analysis also found a different cumulative mortality risk for patients having an LTL shorter than the median (T/S ≤0.04) and disease duration longer than the median (>10 years) (log-rank = 11.02, p = 0.011). Time-dependent mortality risk stratification showed that T2DM duration and LTL combined was a fairly good predictor of mortality over the first 76 months of follow-up. In conclusion, LTL combined with clinical parameters can provide additive prognostic information on mortality risk in T2DM patients.
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Affiliation(s)
| | - Liana Spazzafumo
- Center of Biostatistics, INRCA-IRCCS National Institute, Ancona, Italy
| | | | - Massimiliano Bonafè
- Department of Experimental, Diagnostic and Specialty Medicine, DIMES, University of Bologna, Bologna, Italy
| | - Emanuela Mensà
- Center of Clinical Pathology and Innovative Therapy, National Institute INRCA-IRCCS, Ancona, Italy
| | - Luigina Micolucci
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, Ancona, Italy
| | - Angelica Giuliani
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, Ancona, Italy
| | - Paolo Fabbietti
- Center of Biostatistics, INRCA-IRCCS National Institute, Ancona, Italy
| | - Roberto Testa
- Experimental Models in Clinical Pathology, INRCA-IRCCS National Institute, Ancona, Italy
| | - Massimo Boemi
- Metabolic Diseases and Diabetology Unit, INRCA-IRCCS National Institute, Ancona, Italy
| | | | - Fabiola Olivieri
- Center of Clinical Pathology and Innovative Therapy, National Institute INRCA-IRCCS, Ancona, Italy.,Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, Ancona, Italy
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Declerck K, Vanden Berghe W. Back to the future: Epigenetic clock plasticity towards healthy aging. Mech Ageing Dev 2018; 174:18-29. [PMID: 29337038 DOI: 10.1016/j.mad.2018.01.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 12/22/2022]
Abstract
Aging is the most important risk factor for major human lifestyle diseases, including cancer, neurological and cardiometabolic disorders. Due to the complex interplay between genetics, lifestyle and environmental factors, some individuals seem to age faster than others, whereas centenarians seem to have a slower aging process. Therefore, a biochemical biomarker reflecting the relative biological age would be helpful to predict an individual's health status and aging disease risk. Although it is already known for years that cumulative epigenetic changes occur upon aging, DNA methylation patterns were only recently used to construct an epigenetic clock predictor for biological age, which is a measure of how well your body functions compared to your chronological age. Moreover, the epigenetic DNA methylation clock signature is increasingly applied as a biomarker to estimate aging disease susceptibility and mortality risk. Finally, the epigenetic clock signature could be used as a lifestyle management tool to monitor healthy aging, to evaluate preventive interventions against chronic aging disorders and to extend healthy lifespan. Dissecting the mechanism of the epigenetic aging clock will yield valuable insights into the aging process and how it can be manipulated to improve health span.
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Affiliation(s)
- Ken Declerck
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES), Department of Biomedical Sciences, University of Antwerp (UA), Belgium
| | - Wim Vanden Berghe
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES), Department of Biomedical Sciences, University of Antwerp (UA), Belgium.
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27
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Telomeres, Aging and Exercise: Guilty by Association? Int J Mol Sci 2017; 18:ijms18122573. [PMID: 29186077 PMCID: PMC5751176 DOI: 10.3390/ijms18122573] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/24/2017] [Accepted: 11/25/2017] [Indexed: 02/07/2023] Open
Abstract
Telomeres are repetitive tandem DNA sequences that cap chromosomal ends protecting genomic DNA from enzymatic degradation. Telomeres progressively shorten with cellular replication and are therefore assumed to correlate with biological and chronological age. An expanding body of evidence suggests (i) a predictable inverse association between telomere length, aging and age-related diseases and (ii) a positive association between physical activity and telomere length. Both hypotheses have garnered tremendous research attention and broad consensus; however, the evidence for each proposition is inconsistent and equivocal at best. Telomere length does not meet the basic criteria for an aging biomarker and at least 50% of key studies fail to find associations with physical activity. In this review, we address the evidence in support and refutation of the putative associations between telomere length, aging and physical activity. We finish with a brief review of plausible mechanisms and potential future research directions.
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28
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Mons U, Müezzinler A, Schöttker B, Dieffenbach AK, Butterbach K, Schick M, Peasey A, De Vivo I, Trichopoulou A, Boffetta P, Brenner H. Leukocyte Telomere Length and All-Cause, Cardiovascular Disease, and Cancer Mortality: Results From Individual-Participant-Data Meta-Analysis of 2 Large Prospective Cohort Studies. Am J Epidemiol 2017; 185:1317-1326. [PMID: 28459963 DOI: 10.1093/aje/kww210] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/27/2016] [Indexed: 12/13/2022] Open
Abstract
We studied the associations of leukocyte telomere length (LTL) with all-cause, cardiovascular disease, and cancer mortality in 12,199 adults participating in 2 population-based prospective cohort studies from Europe (ESTHER) and the United States (Nurses' Health Study). Blood samples were collected in 1989-1990 (Nurses' Health Study) and 2000-2002 (ESTHER). LTL was measured by quantitative polymerase chain reaction. We calculated z scores for LTL to standardize LTL measurements across the cohorts. Cox proportional hazards regression models were used to calculate relative mortality according to continuous levels and quintiles of LTL z scores. The hazard ratios obtained from each cohort were subsequently pooled by meta-analysis. Overall, 2,882 deaths were recorded during follow-up (Nurses' Health Study, 1989-2010; ESTHER, 2000-2015). LTL was inversely associated with age in both cohorts. After adjustment for age, a significant inverse trend of LTL with all-cause mortality was observed in both cohorts. In random-effects meta-analysis, age-adjusted hazard ratios for the shortest LTL quintile compared with the longest were 1.23 (95% confidence interval (CI): 1.04, 1.46) for all-cause mortality, 1.29 (95% CI: 0.83, 2.00) for cardiovascular mortality, and 1.10 (95% CI: 0.88, 1.37) for cancer mortality. In this study population with an age range of 43-75 years, we corroborated previous evidence suggesting that LTL predicts all-cause mortality beyond its association with age.
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Affiliation(s)
- Ute Mons
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Aysel Müezzinler
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Network Aging Research, University of Heidelberg, Heidelberg, Germany
| | - Ben Schöttker
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Network Aging Research, University of Heidelberg, Heidelberg, Germany
| | - Aida Karina Dieffenbach
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- German Cancer Consortium, Heidelberg, Germany
| | - Katja Butterbach
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
| | - Matthias Schick
- Genomics and Proteomics Core Facility, German Cancer Research Center, Heidelberg, Germany
| | - Anne Peasey
- Department of Epidemiology and Public Health, Faculty of Population Health Sciences, University College London, London, United Kingdom
| | - Immaculata De Vivo
- Channing Laboratory, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
- Program in Genetic Epidemiology and Statistical Genetics, Harvard School of Public Health, Boston, Massachusetts
| | - Antonia Trichopoulou
- Hellenic Health Foundation, Athens, Greece
- Department of Hygiene, Epidemiology and Medical Statistics, Medical School, University of Athens, Athens, Greece
| | - Paolo Boffetta
- Hellenic Health Foundation, Athens, Greece
- Institute for Translational Epidemiology and Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center, Heidelberg, Germany
- Network Aging Research, University of Heidelberg, Heidelberg, Germany
- German Cancer Consortium, Heidelberg, Germany
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29
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Wolkowitz OM, Jeste DV, Martin AS, Lin J, Daly RE, Reuter C, Kraemer H. Leukocyte telomere length: Effects of schizophrenia, age, and gender. J Psychiatr Res 2017; 85:42-48. [PMID: 27835738 DOI: 10.1016/j.jpsychires.2016.10.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 09/28/2016] [Accepted: 10/03/2016] [Indexed: 01/11/2023]
Abstract
BACKGROUND Schizophrenia is linked with early medical comorbidity and mortality. These observations indicate possible "accelerated biological aging" in schizophrenia, although prior findings are mixed, and few such studies have examined the role of gender. One putative marker of biological aging is leukocyte telomere length (LTL), which typically shortens with age. METHODS We assessed LTL in phenotypically well characterized 134 individuals with schizophrenia (60 women and 74 men) and 123 healthy comparison subjects (HCs) (66 women and 57 men), aged 26 to 65 years. RESULTS Overall, LTL was inversely associated with age (t(249) = -6.2, p < 0.001), and a gender effect on the rate of LTL decrease with age was found (t(249) = 2.20, p = 0.029), with men declining more rapidly than women. No significant overall effect of diagnosis on the rate of decline was detected. However, at the average sample age (48 years), there was a significant gender effect in both schizophrenia and HC groups (t(249) = 2.48, p = 0.014), with women having longer LTL than men, and a significant gender X diagnosis effect (t(249) = 2.43, p = 0.016) - at the average sample age, women with schizophrenia had shorter LTL than HC women. DISCUSSION Gender, not the diagnosis of schizophrenia, was the major factor involved with LTL shortening across the age range studied. We discuss the constraints of a cross-sectional design and other methodological issues, and indicate future directions. Understanding the impact of schizophrenia on biological aging will require separate evaluations in men and women.
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Affiliation(s)
- Owen M Wolkowitz
- University of California San Francisco School of Medicine (UCSF), San Francisco, CA, USA
| | - Dilip V Jeste
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92093, USA; Department of Neurosciences, University of California, San Diego, La Jolla, CA, 92093, USA; Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, La Jolla, 92093-0738, USA.
| | - Averria Sirkin Martin
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92093, USA; Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, La Jolla, 92093-0738, USA
| | - Jue Lin
- University of California San Francisco School of Medicine (UCSF), San Francisco, CA, USA
| | - Rebecca E Daly
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92093, USA; Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, La Jolla, 92093-0738, USA
| | - Chase Reuter
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, 92093, USA; Sam and Rose Stein Institute for Research on Aging, University of California, San Diego, La Jolla, 92093-0738, USA
| | - Helena Kraemer
- Stanford University School of Medicine, Stanford, CA, USA
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30
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Hammadah M, Al Mheid I, Wilmot K, Ramadan R, Abdelhadi N, Alkhoder A, Obideen M, Pimple PM, Levantsevych O, Kelli HM, Shah A, Sun YV, Pearce B, Kutner M, Long Q, Ward L, Ko YA, Hosny Mohammed K, Lin J, Zhao J, Bremner JD, Kim J, Waller EK, Raggi P, Sheps D, Quyyumi AA, Vaccarino V. Telomere Shortening, Regenerative Capacity, and Cardiovascular Outcomes. Circ Res 2016; 120:1130-1138. [PMID: 27956416 PMCID: PMC5376244 DOI: 10.1161/circresaha.116.309421] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 11/22/2016] [Accepted: 12/12/2016] [Indexed: 01/04/2023]
Abstract
RATIONALE Leukocyte telomere length (LTL) is a biological marker of aging, and shorter LTL is associated with adverse cardiovascular outcomes. Reduced regenerative capacity has been proposed as a mechanism. Bone marrow-derived circulating progenitor cells are involved in tissue repair and regeneration. OBJECTIVE Main objective of this study was to examine the relationship between LTL and progenitor cells and their impact on adverse cardiovascular outcomes. METHODS AND RESULTS We measured LTL by quantitative polymerase chain reaction in 566 outpatients (age: 63±9 years; 76% men) with coronary artery disease. Circulating progenitor cells were enumerated by flow cytometry. After adjustment for age, sex, race, body mass index, smoking status, and previous myocardial infarction, a shorter LTL was associated with a lower CD34+ cell count: for each 10% shorter LTL, CD34+ levels were 5.2% lower (P<0.001). After adjustment for the aforementioned factors, both short LTL (<Q1) and low CD34+ levels (<Q1) predicted adverse cardiovascular outcomes (death, myocardial infarction, coronary revascularization, or cerebrovascular events) independently of each other, with a hazard ratio of 1.8 and 95% confidence interval of 1.1 to 2.0, and a hazard ratio of 2.1 and 95% confidence interval of 1.3 to 3.0, respectively, comparing Q1 to Q2-4. Patients who had both short LTL (<Q1) and low CD34+ cell count (<Q1) had the greatest risk of adverse outcomes (hazard ratio =3.5; 95% confidence interval, 1.7-7.1). CONCLUSIONS Although shorter LTL is associated with decreased regenerative capacity, both LTL and circulating progenitor cell levels are independent and additive predictors of adverse cardiovascular outcomes in coronary artery disease patients. Our results suggest that both biological aging and reduced regenerative capacity contribute to cardiovascular events, independent of conventional risk factors.
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Affiliation(s)
- Muhammad Hammadah
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Ibhar Al Mheid
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Kobina Wilmot
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Ronnie Ramadan
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Naser Abdelhadi
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Ayman Alkhoder
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Malik Obideen
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Pratik M Pimple
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Oleksiy Levantsevych
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Heval M Kelli
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Amit Shah
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Yan V Sun
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Brad Pearce
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Michael Kutner
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Qi Long
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Laura Ward
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Yi-An Ko
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Kareem Hosny Mohammed
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Jue Lin
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Jinying Zhao
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - J Douglas Bremner
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Jinhee Kim
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Edmund K Waller
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Paolo Raggi
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - David Sheps
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Arshed A Quyyumi
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.)
| | - Viola Vaccarino
- From the Division of Cardiology, Department of Medicine (M.H., I.A.M., K.W., R.R., N.A., A.A., M.O., H.M.K., A.S., K.H.M., A.A.Q., V.V.) and Department of Psychiatry and Behavioral Sciences (J.D.B.), Emory University School of Medicine, Atlanta, GA; Department of Epidemiology, Rollins School of Public Health (P.M.P., O.L., A.S., Y.V.S., B.P., V.V.), Department of Biostatistics and Bioinformatics, Rollins School of Public Health (Y.V.S., M.K., Q.L., L.W., Y.-A.K.), and Department of Hematology and Oncology, Winship Cancer Institute (J.K., E.K.W.), Emory University, Atlanta, GA; Department of Biochemistry and Biophysics, University of California, San Francisco (J.L.); Department of Epidemiology, Tulane University School of Public Health, New Orleans, LA (J.Z.); Mazankowski Alberta Heart Institute, University of Alberta, Edmonton, Canada (P.R.); and Department of Epidemiology, University of Florida, Gainesville (D.S.).
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31
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Walton RT, Mudway IS, Dundas I, Marlin N, Koh LC, Aitlhadj L, Vulliamy T, Jamaludin JB, Wood HE, Barratt BM, Beevers S, Dajnak D, Sheikh A, Kelly FJ, Griffiths CJ, Grigg J. Air pollution, ethnicity and telomere length in east London schoolchildren: An observational study. ENVIRONMENT INTERNATIONAL 2016; 96:41-47. [PMID: 27591803 DOI: 10.1016/j.envint.2016.08.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 08/24/2016] [Accepted: 08/24/2016] [Indexed: 05/03/2023]
Abstract
BACKGROUND Short telomeres are associated with chronic disease and early mortality. Recent studies in adults suggest an association between telomere length and exposure to particulate matter, and that ethnicity may modify the relationship. However associations in children are unknown. OBJECTIVES We examined associations between air pollution and telomere length in an ethnically diverse group of children exposed to high levels of traffic derived pollutants, particularly diesel exhaust, and to environmental tobacco smoke. METHODS Oral DNA from 333 children (8-9years) participating in a study on air quality and respiratory health in 23 inner city London schools was analysed for relative telomere length using monochrome multiplex qPCR. Annual, weekly and daily exposures to nitrogen oxides and particulate matter were obtained from urban dispersion models (2008-10) and tobacco smoke by urinary cotinine. Ethnicity was assessed by self-report and continental ancestry by analysis of 28 random genomic markers. We used linear mixed effects models to examine associations with telomere length. RESULTS Telomere length increased with increasing annual exposure to NOx (model coefficient 0.003, [0.001, 0.005], p<0.001), NO2 (0.009 [0.004, 0.015], p<0.001), PM2.5 (0.041, [0.020, 0.063], p<0.001) and PM10 (0.096, [0.044, 0.149], p<0.001). There was no association with environmental tobacco smoke. Telomere length was increased in children reporting black ethnicity (22% [95% CI 10%, 36%], p<0.001) CONCLUSIONS: Pollution exposure is associated with longer telomeres in children and genetic ancestry is an important determinant of telomere length. Further studies should investigate both short and long-term associations between pollutant exposure and telomeres in childhood and assess underlying mechanisms.
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Affiliation(s)
- Robert T Walton
- Asthma UK Centre for Applied Asthma Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary University of London, London, United Kingdom.
| | - Ian S Mudway
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Isobel Dundas
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Nadine Marlin
- Asthma UK Centre for Applied Asthma Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Lee C Koh
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Layla Aitlhadj
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Tom Vulliamy
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Jeenath B Jamaludin
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Helen E Wood
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Ben M Barratt
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Sean Beevers
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - David Dajnak
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Aziz Sheikh
- Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh, Medical School Doorway 3, Teviot Place, Edinburgh, United Kingdom
| | - Frank J Kelly
- MRC-PHE Centre for Environment and Health and NIHR HPRU in Health Impact of Environmental Hazards, King's College London, London, United Kingdom
| | - Chris J Griffiths
- Asthma UK Centre for Applied Asthma Research, Centre for Primary Care and Public Health, Blizard Institute, Queen Mary University of London, London, United Kingdom
| | - Jonathan Grigg
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
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Edmonds GW, Hampson SE, Côté HCF, Hill PL, Klest B. Childhood Personality, Betrayal Trauma, and Leukocyte Telomere Length in Adulthood: A Lifespan Perspective on Conscientiousness and Betrayal Traumas as Predictors of a Biomarker of Cellular Aging. EUROPEAN JOURNAL OF PERSONALITY 2016; 30:426-437. [PMID: 28018048 DOI: 10.1002/per.2051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Conscientiousness is associated with longevity. As such, identifying the biological pathways linking personality to mortality is important. This study employs longitudinal data spanning >40 years to test prospective associations with Leukocyte Telomere Length (LTL), a potential marker of cellular aging. Because telomeres shorten over time, and are sensitive to oxidative stress, shorter LTL may reflect cumulative damage associated with negative health behaviors and past stressful events. We investigated childhood conscientiousness as a protective factor, expecting an association with longer LTL in adulthood, possibly reflecting slower LTL shortening. Potential lifespan pathways involving childhood trauma, smoking behaviors, and Body Mass Index (BMI) were explored. Childhood conscientiousness showed a small raw association with LTL (r = .08, p = .04), although this effect did not persist when controlling for age and sex. Despite this lack of a direct effect on LTL, we detected an indirect effect operating jointly through BMI and smoking. Higher rates of childhood betrayal trauma were associated with shorter LTL. Contrary to our hypothesis that conscientiousness would buffer this effect, we found evidence for an interaction with childhood betrayal traumas where the association between childhood betrayal traumas and LTL was larger for those higher on conscientiousness in childhood.
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Affiliation(s)
| | | | - Hélène C F Côté
- Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
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Lifespan adversity and later adulthood telomere length in the nationally representative US Health and Retirement Study. Proc Natl Acad Sci U S A 2016; 113:E6335-E6342. [PMID: 27698131 DOI: 10.1073/pnas.1525602113] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Stress over the lifespan is thought to promote accelerated aging and early disease. Telomere length is a marker of cell aging that appears to be one mediator of this relationship. Telomere length is associated with early adversity and with chronic stressors in adulthood in many studies. Although cumulative lifespan adversity should have bigger impacts than single events, it is also possible that adversity in childhood has larger effects on later life health than adult stressors, as suggested by models of biological embedding in early life. No studies have examined the individual vs. cumulative effects of childhood and adulthood adversities on adult telomere length. Here, we examined the relationship between cumulative childhood and adulthood adversity, adding up a range of severe financial, traumatic, and social exposures, as well as comparing them to each other, in relation to salivary telomere length. We examined 4,598 men and women from the US Health and Retirement Study. Single adversities tended to have nonsignificant relations with telomere length. In adjusted models, lifetime cumulative adversity predicted 6% greater odds of shorter telomere length. This result was mainly due to childhood adversity. In adjusted models for cumulative childhood adversity, the occurrence of each additional childhood event predicted 11% increased odds of having short telomeres. This result appeared mainly because of social/traumatic exposures rather than financial exposures. This study suggests that the shadow of childhood adversity may reach far into later adulthood in part through cellular aging.
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Mitchell SJ, Scheibye-Knudsen M, Longo DL, de Cabo R. Animal models of aging research: implications for human aging and age-related diseases. Annu Rev Anim Biosci 2016; 3:283-303. [PMID: 25689319 DOI: 10.1146/annurev-animal-022114-110829] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Aging is characterized by an increasing morbidity and functional decline that eventually results in the death of an organism. Aging is the largest risk factor for numerous human diseases, and understanding the aging process may thereby facilitate the development of new treatments for age-associated diseases. The use of humans in aging research is complicated by many factors, including ethical issues; environmental and social factors; and perhaps most importantly, their long natural life span. Although cellular models of human disease provide valuable mechanistic information, they are limited in that they may not replicate the in vivo biology. Almost all organisms age, and thus animal models can be useful for studying aging. Herein, we review some of the major models currently used in aging research and discuss their benefits and pitfalls, including interventions known to extend life span and health span. Finally, we conclude by discussing the future of animal models in aging research.
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Camici GG, Savarese G, Akhmedov A, Lüscher TF. Molecular mechanism of endothelial and vascular aging: implications for cardiovascular disease. Eur Heart J 2015; 36:3392-403. [PMID: 26543043 DOI: 10.1093/eurheartj/ehv587] [Citation(s) in RCA: 158] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 10/11/2015] [Indexed: 02/07/2023] Open
Abstract
Western societies are aging due to an increasing life span, decreased birth rates, and improving social and health conditions. On the other hand, the prevalence of cardiovascular (CV) and cerebrovascular (CBV) diseases rises with age. Thus, in view of the ongoing aging pandemic, it is appropriate to better understand the molecular pathways of aging as well as age-associated CV and CBV diseases. Oxidative stress contributes to aging of organs and the whole body by an accumulation of reactive oxygen species promoting oxidative damage. Indeed, increased oxidative stress produced in the mitochondria and cytosol of heart and brain is a common denominator to almost all CV and CBV diseases. The mitochondrial adaptor protein p66(Shc) and the family of deacetylase enzymes, the sirtuins, regulate the aging process, determine lifespan of many species and are involved in CV diseases. GDF11, a member of TGFβ superfamily with homology to myostatin also retards the aging process via yet unknown mechanisms. Recent evidence points towards a promising role of this novel 'rejuvenation' factor in reducing age-related heart disease. Finally, telomere length is also involved in aging and the development of age-related CV dysfunction. This review focuses on the latest scientific advances in understanding age-related changes of the CV and CBV system, as well as delineating potential novel therapeutic targets derived from aging research for CV and CBV diseases.
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Affiliation(s)
- Giovanni G Camici
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland
| | - Gianluigi Savarese
- Cardiology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Alexander Akhmedov
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland
| | - Thomas F Lüscher
- Center for Molecular Cardiology, University of Zurich, Zurich, Switzerland University Heart Center, Cardiology, University Hospital Zurich, Zurich, Switzerland
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Lindqvist D, Epel ES, Mellon SH, Penninx BW, Révész D, Verhoeven JE, Reus VI, Lin J, Mahan L, Hough CM, Rosser R, Bersani FS, Blackburn EH, Wolkowitz OM. Psychiatric disorders and leukocyte telomere length: Underlying mechanisms linking mental illness with cellular aging. Neurosci Biobehav Rev 2015; 55:333-64. [PMID: 25999120 PMCID: PMC4501875 DOI: 10.1016/j.neubiorev.2015.05.007] [Citation(s) in RCA: 220] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 05/06/2015] [Accepted: 05/10/2015] [Indexed: 10/23/2022]
Abstract
Many psychiatric illnesses are associated with early mortality and with an increased risk of developing physical diseases that are more typically seen in the elderly. Moreover, certain psychiatric illnesses may be associated with accelerated cellular aging, evidenced by shortened leukocyte telomere length (LTL), which could underlie this association. Shortened LTL reflects a cell's mitotic history and cumulative exposure to inflammation and oxidation as well as the availability of telomerase, a telomere-lengthening enzyme. Critically short telomeres can cause cells to undergo senescence, apoptosis or genomic instability, and shorter LTL correlates with poorer health and predicts mortality. Emerging data suggest that LTL may be reduced in certain psychiatric illnesses, perhaps in proportion to exposure to the psychiatric illnesses, although conflicting data exist. Telomerase has been less well characterized in psychiatric illnesses, but a role in depression and in antidepressant and neurotrophic effects has been suggested by preclinical and clinical studies. In this article, studies on LTL and telomerase activity in psychiatric illnesses are critically reviewed, potential mediators are discussed, and future directions are suggested. A deeper understanding of cellular aging in psychiatric illnesses could lead to re-conceptualizing them as systemic illnesses with manifestations inside and outside the brain and could identify new treatment targets.
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Affiliation(s)
- Daniel Lindqvist
- Department of Clinical Sciences, Section for Psychiatry, Lund University, Lund, Sweden; Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA
| | - Elissa S Epel
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA
| | - Synthia H Mellon
- Department of OB-GYN and Reproductive Sciences, UCSF School of Medicine, San Francisco, CA, USA
| | - Brenda W Penninx
- Department of Psychiatry and EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Dóra Révész
- Department of Psychiatry and EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Josine E Verhoeven
- Department of Psychiatry and EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands
| | - Victor I Reus
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA
| | - Jue Lin
- Department of Biochemistry and Biophysics, UCSF School of Medicine, San Francisco, CA, USA
| | - Laura Mahan
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA
| | - Christina M Hough
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA
| | - Rebecca Rosser
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA
| | - F Saverio Bersani
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA; Department of Neurology and Psychiatry, Sapienza University of Rome, Rome, Italy
| | - Elizabeth H Blackburn
- Department of Biochemistry and Biophysics, UCSF School of Medicine, San Francisco, CA, USA
| | - Owen M Wolkowitz
- Department of Psychiatry, University of California San Francisco (UCSF), School of Medicine, San Francisco, CA, USA.
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Rode L, Nordestgaard BG, Bojesen SE. Peripheral blood leukocyte telomere length and mortality among 64,637 individuals from the general population. J Natl Cancer Inst 2015; 107:djv074. [PMID: 25862531 DOI: 10.1093/jnci/djv074] [Citation(s) in RCA: 220] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Short telomeres in peripheral blood leukocytes are associated with older age and age-related diseases. We tested the hypotheses that short telomeres are associated with both increased cancer mortality and all-cause mortality. METHODS Individuals (n = 64637) were recruited from 1991 onwards from two Danish prospective cohort studies: the Copenhagen City Heart Study and the Copenhagen General Population Study. All had telomere length measured by quantitative polymerase chain reaction and the genotypes rs1317082 (TERC), rs7726159 (TERT), and rs2487999 (OBFC1) determined. The sum of telomere-shortening alleles from these three genotypes was calculated. We conducted Cox regression analyses and instrumental variable analyses using the allele sum as an instrument. All statistical tests were two-sided. RESULTS Among 7607 individuals who died during follow-up (0-22 years, median = 7 years), 2420 had cancer and 2633 had cardiovascular disease as causes of death. Decreasing telomere length deciles were associated with increasing all-cause mortality (P(trend) = 2*10(-15)). The multivariable-adjusted hazard ratio of all-cause mortality was 1.40 (95% confidence interval [CI] = 1.25 to 1.57) for individuals in the shortest vs the longest decile. Results were similar for cancer mortality and cardiovascular mortality. Telomere length decreased 69 base pairs (95% CI = 61 to 76) per allele for the allele sum, and the per-allele hazard ratio for cancer mortality was 0.95 (95% CI = 0.91 to 0.99). Allele sum was not associated with cardiovascular, other, or all-cause mortality. CONCLUSION Short telomeres in peripheral blood leukocytes were associated with high mortality in association analyses. In contrast, genetically determined short telomeres were associated with low cancer mortality but not with all-cause mortality.
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Affiliation(s)
- Line Rode
- 1) Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Herlev, Denmark
| | - Børge G Nordestgaard
- 1) Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Herlev, Denmark; 2) Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital, Frederiksberg, Denmark; 3) Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Stig E Bojesen
- 1) Department of Clinical Biochemistry and the Copenhagen General Population Study, Herlev Hospital, Copenhagen University Hospital, Herlev, Denmark; 2) Copenhagen City Heart Study, Frederiksberg Hospital, Copenhagen University Hospital, Frederiksberg, Denmark; 3) Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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Haver VG, Mateo Leach I, Kjekshus J, Fox JC, Wedel H, Wikstrand J, de Boer RA, van Gilst WH, McMurray JJ, van Veldhuisen DJ, van der Harst P. Telomere length and outcomes in ischaemic heart failure: data from the COntrolled ROsuvastatin multiNAtional Trial in Heart Failure (CORONA). Eur J Heart Fail 2015; 17:313-9. [DOI: 10.1002/ejhf.237] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Revised: 11/10/2014] [Accepted: 11/26/2014] [Indexed: 12/26/2022] Open
Affiliation(s)
- Vincent G. Haver
- University of Groningen, University Medical Center Groningen; Department of Cardiology; Groningen The Netherlands
| | - Irene Mateo Leach
- University of Groningen, University Medical Center Groningen; Department of Cardiology; Groningen The Netherlands
| | - John Kjekshus
- Department of Cardiology; Rikshospitalet University Hospital; Oslo Norway
| | - Jayne C. Fox
- AstraZeneca Pharmaceuticals; Alderley Park; Macclesfield Cheshire UK
| | - Hans Wedel
- Nordic School of Public Health; Gothenburg Sweden
| | - John Wikstrand
- Wallenberg Laboratory for Cardiovascular Research, Sahlgrenska Academy; Gothenburg University; Gothenburg Sweden
| | - Rudolf A. de Boer
- University of Groningen, University Medical Center Groningen; Department of Cardiology; Groningen The Netherlands
| | - Wiek H. van Gilst
- University of Groningen, University Medical Center Groningen; Department of Cardiology; Groningen The Netherlands
| | - John J.V. McMurray
- BHF Cardiovascular Research Centre; University of Glasgow; Glasgow Scotland UK
| | - Dirk J. van Veldhuisen
- University of Groningen, University Medical Center Groningen; Department of Cardiology; Groningen The Netherlands
| | - Pim van der Harst
- University of Groningen, University Medical Center Groningen; Department of Cardiology; Groningen The Netherlands
- University of Groningen, University Medical Center Groningen; Department of Genetics; Groningen The Netherlands
- Durrer Center for Cardiogenetic Research; ICIN-Netherlands Heart Institute; Utrecht The Netherlands
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Tedone E, Arosio B, Gussago C, Casati M, Ferri E, Ogliari G, Ronchetti F, Porta A, Massariello F, Nicolini P, Mari D. Leukocyte telomere length and prevalence of age-related diseases in semisupercentenarians, centenarians and centenarians' offspring. Exp Gerontol 2014; 58:90-5. [PMID: 24975295 DOI: 10.1016/j.exger.2014.06.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 06/23/2014] [Accepted: 06/26/2014] [Indexed: 02/03/2023]
Abstract
Centenarians and their offspring are increasingly considered a useful model to study and characterize the mechanisms underlying healthy aging and longevity. The aim of this project is to compare the prevalence of age-related diseases and telomere length (TL), a marker of biological age and mortality, across five groups of subjects: semisupercentenarians (SSCENT) (105-109years old), centenarians (CENT) (100-104years old), centenarians' offspring (CO), age- and gender-matched offspring of parents who both died at an age in line with life expectancy (CT) and age- and gender-matched offspring of both non-long-lived parents (NLO). Information was collected on lifestyle, past and current diseases, medical history and medication use. SSCENT displayed a lower prevalence of acute myocardial infarction (p=0.027), angina (p=0.016) and depression (p=0.021) relative to CENT. CO appeared to be healthier compared to CT who, in turn, displayed a lower prevalence of both arrhythmia (p=0.034) and hypertension (p=0.046) than NLO, characterized by the lowest parental longevity. Interestingly, CO and SSCENT exhibited the longest (p<0.001) and the shortest (p<0.001) telomeres respectively while CENT showed no difference in TL compared to the younger CT and NLO. Our results strengthen the hypothesis that the longevity of parents may influence the health status of their offspring. Moreover, our data also suggest that both CENT and their offspring may be characterized by a better TL maintenance which, in turn, may contribute to their longevity and healthy aging. The observation that SSCENT showed considerable shorter telomeres compared to CENT may suggest a progressive impairment of TL maintenance mechanisms over the transition from centenarian to semisupercentenarian age.
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Affiliation(s)
- Enzo Tedone
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy.
| | - Beatrice Arosio
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy; Geriatric Unit, Fondazione CaGranda, IRCCS Ospedale Maggiore Policlinico, Via Pace 9, 20122 Milan, Italy
| | - Cristina Gussago
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy
| | - Martina Casati
- Geriatric Unit, Fondazione CaGranda, IRCCS Ospedale Maggiore Policlinico, Via Pace 9, 20122 Milan, Italy
| | - Evelyn Ferri
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy
| | - Giulia Ogliari
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy
| | - Francesco Ronchetti
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy
| | - Alessandra Porta
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy
| | - Francesca Massariello
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy
| | - Paola Nicolini
- Geriatric Unit, Fondazione CaGranda, IRCCS Ospedale Maggiore Policlinico, Via Pace 9, 20122 Milan, Italy
| | - Daniela Mari
- Geriatric Unit, Department of Medical Sciences and Community Health, University of Milan, Via Pace 9, 20122 Milan, Italy; Geriatric Unit, Fondazione CaGranda, IRCCS Ospedale Maggiore Policlinico, Via Pace 9, 20122 Milan, Italy
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