1
|
Almuraikhy S, Sellami M, Naja K, Al-Amri HS, Anwardeen N, Aden A, Dömling A, Elrayess MA. Joint Effects of Exercise and Ramadan Fasting on Telomere Length: Implications for Cellular Aging. Biomedicines 2024; 12:1182. [PMID: 38927389 PMCID: PMC11200901 DOI: 10.3390/biomedicines12061182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/13/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Aging is a fundamental biological process that progressively impairs the functionality of the bodily systems, leading to an increased risk of diseases. Telomere length is one of the most often used biomarkers of aging. Recent research has focused on developing interventions to mitigate the effects of aging and improve the quality of life. The objective of this study was to investigate the combined effect of exercise and Ramadan fasting on telomere length. Twenty-nine young, non-obese, healthy females were randomized into two groups: the control group underwent a 4-week exercise training program, and the second group underwent a 4-week exercise training program while fasting during Ramadan. Blood samples were collected, and measurements of clinical traits, cytokines, oxidative stress, and telomere length were performed before and after intervention. Telomere length increased significantly from baseline in the exercise-while-fasting group, but showed no significant change in the exercise control group. This increase was accompanied by a reduction in TNF-α, among other cytokines. Additionally, a significant positive correlation was observed between the mean change in telomere length and HDL in the exercise-while-fasting group only. This study is the first to report an increase in telomere length after combining Ramadan fasting with training, suggesting that exercising while fasting may be an effective tool for slowing down the aging rate. Further studies using larger and more diverse cohorts are warranted.
Collapse
Affiliation(s)
- Shamma Almuraikhy
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar; (S.A.); (K.N.); (N.A.)
- Groningen Research Institute of Pharmacy, Drug Design, Groningen University, 9712 CP Groningen, The Netherlands;
| | - Maha Sellami
- Physical Education Department (PE), College of Education, Qatar University, Doha P.O. Box 2713, Qatar; (M.S.); (H.S.A.-A.)
| | - Khaled Naja
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar; (S.A.); (K.N.); (N.A.)
| | - Hadaia Saleh Al-Amri
- Physical Education Department (PE), College of Education, Qatar University, Doha P.O. Box 2713, Qatar; (M.S.); (H.S.A.-A.)
| | - Najeha Anwardeen
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar; (S.A.); (K.N.); (N.A.)
| | - Amina Aden
- Hamad Medical Corporation (HMC), Doha P.O. Box 3050, Qatar;
| | - Alexander Dömling
- Groningen Research Institute of Pharmacy, Drug Design, Groningen University, 9712 CP Groningen, The Netherlands;
| | - Mohamed A. Elrayess
- Biomedical Research Center, Qatar University, Doha P.O. Box 2713, Qatar; (S.A.); (K.N.); (N.A.)
- College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar
| |
Collapse
|
2
|
Zhu G, Xu J, Guo G, Zhu F. Association between Lipids, Apolipoproteins and Telomere Length: A Mendelian Randomization Study. Nutrients 2023; 15:4497. [PMID: 37960150 PMCID: PMC10647842 DOI: 10.3390/nu15214497] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/12/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
(1) Background: The relationship between lipids, apolipoproteins, and telomere length (TL) has been explored in previous studies; however, the causal relationship between the two remains unclear. This study aims to assess the causal relationship between lipids, apolipoproteins, and TL using the two-sample Mendelian randomization (MR) approach; (2) Methods: This study comprehensively employed both univariate MR (uvMR) and multivariate MR (mvMR) methods to genetically evaluate the associations between 21 exposures related to lipids and apolipoproteins and the outcome of TL. During the analysis process, we utilized various statistical methods, including Inverse Variance Weighting (IVW), Weighted Median, MR-Egger regression, MR-PRESSO, and outlier tests. Furthermore, to confirm the robustness of the results, we conducted several sensitivity analyses to explore potential heterogeneity; (3) Results: The uvMR analysis indicated that an increase in MUFA, MUFA/FA ratio, LDL-C, VLDL-C, total cholesterol, ApoB, and triglycerides (TG) was associated with an increase in TL. However, this relationship did not manifest in the mvMR analysis, suggesting that this association may be based on preliminary evidence; (4) Conclusions: MR analysis results suggest potential suggestive positive causal relationships between genetically predicted MUFA, MUFA/FA ratio, LDL-C, VLDL-C, total cholesterol, ApoB, and TG with TL.
Collapse
Affiliation(s)
- Gehua Zhu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang 330000, China; (G.Z.); (J.X.)
| | - Jiamin Xu
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang 330000, China; (G.Z.); (J.X.)
| | - Guanghua Guo
- Medical Center of Burn Plastic and Wound Repair, The First Affiliated Hospital of Nanchang University, Nanchang 330000, China; (G.Z.); (J.X.)
| | - Feng Zhu
- Department of Critical Care Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China
| |
Collapse
|
3
|
Novau-Ferré N, Rojas M, Gutierrez-Tordera L, Arcelin P, Folch J, Papandreou C, Bulló M. Lipoprotein Particle Profiles Associated with Telomere Length and Telomerase Complex Components. Nutrients 2023; 15:nu15112624. [PMID: 37299586 DOI: 10.3390/nu15112624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Telomere length (TL) is a well-known marker of age-related diseases. Oxidative stress and inflammation increase the rate of telomere shortening, triggering cellular senescence. Although lipoproteins could have anti-inflammatory and proinflammatory functional properties, the relationship between lipoprotein particles with TL and telomerase activity-related genes has not been investigated much. In this study, we assessed the associations of lipoprotein subfractions with telomere length, TERT, and WRAP53 expression in a total of 54 pre-diabetic subjects from the EPIRDEM study. We regressed TL, TERT, and WRAP53 on 12 lipoprotein subclasses, employing a Gaussian linear regression method with Lasso penalty to determine a lipoprotein profile associated with telomere-related parameters. The covariates included age, sex, body mass index (BMI), dyslipidemia, statin consumption, and physical activity leisure time. We identified a lipoprotein profile composed of four lipoprotein subfractions associated with TL (Pearson r = 0.347, p-value = 0.010), two lipoprotein subfractions associated with TERT expression (Pearson r = 0.316, p-value = 0.020), and five lipoprotein subfractions associated with WRAP53 expression (Pearson r = 0.379, p-value =0.005). After adjusting for known confounding factors, most lipoprotein profiles maintained the association with TL, TERT, and WRAP53. Overall, medium and small-sized HDL particles were associated with shorter telomeres and lower expression of TERT and WRAP53. Large HDL particles were associated with longer telomere and lower expression of WRAP53, but not with TERT. Our results suggest that the lipoprotein profiles are associated with telomere length, TERT, and WRAP53 expression and should be considered when assessing the risk of chronic diseases.
Collapse
Affiliation(s)
- Nil Novau-Ferré
- Nutrition and Metabolic Health Research Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV), 43201 Reus, Spain
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Center of Environmental, Food and Toxicological Technology(TecnATox), Rovira i Virgili University, 43201 Reus, Spain
| | - Melina Rojas
- Nutrition and Metabolic Health Research Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV), 43201 Reus, Spain
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Center of Environmental, Food and Toxicological Technology(TecnATox), Rovira i Virgili University, 43201 Reus, Spain
| | - Laia Gutierrez-Tordera
- Nutrition and Metabolic Health Research Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV), 43201 Reus, Spain
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Center of Environmental, Food and Toxicological Technology(TecnATox), Rovira i Virgili University, 43201 Reus, Spain
| | - Pierre Arcelin
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Atención Básica de Salud (ABS) Reus V. Centro de Atención Primaria Marià Fortuny, SAGESSA, 43204 Reus, Spain
| | - Jaume Folch
- Nutrition and Metabolic Health Research Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV), 43201 Reus, Spain
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Center of Environmental, Food and Toxicological Technology(TecnATox), Rovira i Virgili University, 43201 Reus, Spain
- Biomedical Research Networking Centre in Neurodegenerative Diseases (CIBERNED), Carlos III Health Institute, 28031 Madrid, Spain
| | - Christopher Papandreou
- Nutrition and Metabolic Health Research Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV), 43201 Reus, Spain
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Center of Environmental, Food and Toxicological Technology(TecnATox), Rovira i Virgili University, 43201 Reus, Spain
- Department of Nutrition and Dietetics Sciences, School of Health Sciences, Hellenic Mediterranean University (HMU), 72300 Siteia, Greece
| | - Mònica Bulló
- Nutrition and Metabolic Health Research Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University (URV), 43201 Reus, Spain
- Institute of Health Pere Virgili (IISPV), 43204 Reus, Spain
- Center of Environmental, Food and Toxicological Technology(TecnATox), Rovira i Virgili University, 43201 Reus, Spain
- Atención Básica de Salud (ABS) Reus V. Centro de Atención Primaria Marià Fortuny, SAGESSA, 43204 Reus, Spain
- CIBER Physiology of Obesity and Nutrition (CIBEROBN), Carlos III Health Institute, 28029 Madrid, Spain
| |
Collapse
|
4
|
Lipidomics profiling of biological aging in American Indians: the Strong Heart Family Study. GeroScience 2022; 45:359-369. [PMID: 35953607 PMCID: PMC9886745 DOI: 10.1007/s11357-022-00638-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 08/02/2022] [Indexed: 02/03/2023] Open
Abstract
Telomeres shorten with age and shorter leukocyte telomere length (LTL) has been associated with various age-related diseases. Thus, LTL has been considered a biomarker of biological aging. Dyslipidemia is an established risk factor for most age-related metabolic disorders. However, little is known about the relationship between LTL and dyslipidemia. Lipidomics is a new biochemical technique that can simultaneously identify and quantify hundreds to thousands of small molecular lipid species. In a large population comprising 1843 well-characterized American Indians in the Strong Heart Family Study, we examined the lipidomic profile of biological aging assessed by LTL. Briefly, LTL was quantified by qPCR. Fasting plasma lipids were quantified by untargeted liquid chromatography-mass spectrometry. Lipids associated with LTL were identified by elastic net modeling. Of 1542 molecular lipids identified (518 known, 1024 unknown), 174 lipids (36 knowns) were significantly associated with LTL, independent of chronological age, sex, BMI, hypertension, diabetes status, smoking status, bulk HDL-C, and LDL-C. These findings suggest that altered lipid metabolism is associated with biological aging and provide novel insights that may enhance our understanding of the relationship between dyslipidemia, biological aging, and age-related diseases in American Indians.
Collapse
|
5
|
Huang YC, Lin PY, Lee Y, Lee CY, Lo YC, Hung CF, Chen CS. Metabolic syndrome components and leukocyte telomere length in patients with major depressive disorder. World J Biol Psychiatry 2022; 23:483-492. [PMID: 34854357 DOI: 10.1080/15622975.2021.2013091] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The relationship between metabolic syndrome (MetS) components and leukocyte telomere length (LTL) attrition in major depressive disorder (MDD) remains unclear. METHODS We recruited 70 MDD patients (mean age: 44.6 years, 60.0% female) and 51 age- and sex-matched controls (mean age: 41.2 years, 68.6% female) to examine the associations of MetS components and LTL. Five MetS components-waist circumference, systolic/diastolic blood pressure, serum levels of fasting glucose, high-density lipoprotein cholesterol (HDL-C), and triglycerides-were assessed. LTL was measured through quantitative polymerase chain reaction. RESULTS MDD had higher prevalence of MetS (34.3 vs. 17.6%, p=.042), low HDL-C (25.7 vs. 7.8%, p=.009) and shorter LTL (-0.038 ± 0.169 vs. 0.033 ± 0.213, p=.042). Regression analysis revealed that MDD (p=.046) and age (p=.003) associated with LTL, while a significant interaction effect of group (MDD vs. controls) × HDL-C (p=.037) was observed. Post-hoc analysis showed MDD with low HDL-C had greater LTL attrition than controls without low HDL-C (p=.020). In MDD, HDL-C dysregulation negatively correlated with LTL (p=.010); but no significance after Bonferroni correction. CONCLUSIONS HDL-C may be involved in accelerated ageing process regarding metabolic disturbance in MDD only. The relationship merits prospective investigations with larger sample size for clarification.
Collapse
Affiliation(s)
- Yu-Chi Huang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Pao-Yen Lin
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Institute for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yu Lee
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chun-Yi Lee
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yi-Ching Lo
- Department of Pharmacology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chi-Fa Hung
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Cheng-Sheng Chen
- Department of Psychiatry, Kaohsiung Medical University Hospital and College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| |
Collapse
|
6
|
Syreeni A, Carroll LM, Mutter S, Januszewski AS, Forsblom C, Lehto M, Groop PH, Jenkins AJ. Telomeres do not always shorten over time in individuals with type 1 diabetes. Diabetes Res Clin Pract 2022; 188:109926. [PMID: 35580703 DOI: 10.1016/j.diabres.2022.109926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 05/03/2022] [Accepted: 05/09/2022] [Indexed: 11/03/2022]
Abstract
AIMS We aimed to determine how white blood cell (WBC) telomeres and telomere length change over time are associated with health status in type 1 diabetes. METHODS Relative telomere length (rTL) was measured in WBC DNA from two time-points (median 6.8 years apart) in 618 individuals from the Finnish Diabetic Nephropathy Study by quantitative PCR, with interassay CV ≤ 4%. RESULTS Baseline rTL correlated inversely with age and was shorter in men. Individuals in the shortest vs. longest rTL tertile had adverse cardiometabolic profiles, worse renal function, and were prescribed more antihypertensive and lipid-lowering drugs. While overall rTL tended to decrease during the median 6.8-years of follow-up, telomeres shortened in 55.3% of subjects, lengthened in 40.0%, and did not change in 4.7%. Baseline rTL correlated inversely with rTL change. Telomere lengthening was associated with higher HDL-Cholesterol (HDL-C), HDL-C/ApoA1, and with antihypertensive drug and (inversely) with lipid-lowering drug commencement during follow-up. Correlates of rTL percentage change per-annum (adjusted model) were baseline BMI, eGFR, previous retinal laser treatment, HDL-C, and HDL-C/ApoA1. CONCLUSIONS Telomere length measurements may facilitate the treatment and monitoring of the health status of individuals with type 1 diabetes.
Collapse
Affiliation(s)
- Anna Syreeni
- Folkhälsan Research Center, Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Finland; Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Luke M Carroll
- NHMRC Clinical Trials Centre, The University of Sydney, Sydney, NSW, Australia
| | - Stefan Mutter
- Folkhälsan Research Center, Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Finland; Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | | | - Carol Forsblom
- Folkhälsan Research Center, Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Finland; Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markku Lehto
- Folkhälsan Research Center, Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Finland; Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Per-Henrik Groop
- Folkhälsan Research Center, Helsinki, Finland; Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Finland; Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia.
| | - Alicia J Jenkins
- NHMRC Clinical Trials Centre, The University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
7
|
Boniewska-Bernacka E, Pańczyszyn A, Hobot J, Donizy P, Ziembik Z, Goc A, Klinger M. The Length of Leukocyte and Femoral Artery Telomeres in Patients with Peripheral Atherosclerosis. Genes (Basel) 2022; 13:genes13040704. [PMID: 35456510 PMCID: PMC9030852 DOI: 10.3390/genes13040704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/06/2022] [Accepted: 04/13/2022] [Indexed: 11/16/2022] Open
Abstract
The length of telomeres (TLs) that protect chromosome ends may reflect the age of cells as well as the degree of genetic material damage caused by external factors. Since leukocyte telomere length is associated with cardiovascular diseases, the aim of this study was to evaluate whether leukocyte TL reflects femoral artery wall telomeres of patients with atherosclerosis and lower limb ischemia. Samples of femoral artery wall and blood were collected from 32 patients qualified to surgical revascularization. The analysis included blood and artery wall telomere length measurement and biochemical parameters. The study indicated that there was a moderate correlation between artery wall TL and leukocyte TL. Leukocyte TL was, on average, two times shorter than artery wall TL and correlated with the number of white blood cells. In turn, artery TL was impacted by total cholesterol level. The results suggest that the length of leukocyte telomeres may reflect artery wall TL and indirectly reflect the processes taking place in the artery wall in patients with atherosclerosis.
Collapse
Affiliation(s)
- Ewa Boniewska-Bernacka
- Medical Department, Institute of Medical Sciences, University of Opole, ul. Oleska 48, 45-052 Opole, Poland; (A.P.); (J.H.); (A.G.); (M.K.)
- Correspondence:
| | - Anna Pańczyszyn
- Medical Department, Institute of Medical Sciences, University of Opole, ul. Oleska 48, 45-052 Opole, Poland; (A.P.); (J.H.); (A.G.); (M.K.)
| | - Jacek Hobot
- Medical Department, Institute of Medical Sciences, University of Opole, ul. Oleska 48, 45-052 Opole, Poland; (A.P.); (J.H.); (A.G.); (M.K.)
| | - Piotr Donizy
- Department of Clinical and Experimental Pathology, Wroclaw Medical University, 50-556 Wroclaw, Poland;
| | - Zbigniew Ziembik
- Institute of Environmental Engineering and Biotechnology, University of Opole, 45-032 Opole, Poland;
| | - Anna Goc
- Medical Department, Institute of Medical Sciences, University of Opole, ul. Oleska 48, 45-052 Opole, Poland; (A.P.); (J.H.); (A.G.); (M.K.)
| | - Marian Klinger
- Medical Department, Institute of Medical Sciences, University of Opole, ul. Oleska 48, 45-052 Opole, Poland; (A.P.); (J.H.); (A.G.); (M.K.)
| |
Collapse
|
8
|
Gao X, Kong Y, Li S, Dong S, Huang X, Qi D, Zhang T, Yan Y, Chen W. Intermediate Effects of Body Mass Index and C-Reactive Protein on the Serum Cotinine- Leukocyte Telomere Length Association. Front Aging Neurosci 2022; 13:827465. [PMID: 35115918 PMCID: PMC8806079 DOI: 10.3389/fnagi.2021.827465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 12/20/2021] [Indexed: 02/03/2023] Open
Abstract
We aimed to examine the association between serum cotinine and leukocyte telomere length (LTL) and the intermediate effects of body mass index (BMI) and C-reactive protein (CRP) on modulating the association. This study included 4,047 adults from the 1999 to 2002 National Health and Nutrition Examination Survey. In the combined sample, after adjusting for age, race, sex, physical activity, and alcohol use, the total effect of serum cotinine on LTL was significant (standardized regression coefficient, β = −0.049, p = 0.001) without BMI and CRP included in the model. With inclusion of BMI but without CRP in the model, the direct effect of cotinine on LTL in its absolute value increased to β = −0.053 (p < 0.001), and the suppression effect of BMI was estimated at 8.8%. With inclusion of CRP but without BMI in the model, the direct effect of cotinine on LTL in its absolute value decreased to β = −0.040 (p = 0.008), and the mediation effect of CRP was estimated at 16.9%. With inclusion of both BMI and CRP in the model, BMI and CRP still had significant suppression and mediation effects, respectively, on the cotinine-LTL association. These findings suggest that weight and inflammation have different roles in the inverse association between serum cotinine and LTL.
Collapse
Affiliation(s)
- Xiao Gao
- The Second Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yawei Kong
- Center for Non-communicable Disease Management, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
| | - Shengxu Li
- Children’s Minnesota Research Institute, Children’s Minnesota, Minneapolis, MN, United States
| | - Shiqiu Dong
- Department of Clinical Medicine, Heilongjiang Nursing College, Harbin, China
| | - Xinyu Huang
- Department of Clinical Medicine, Heilongjiang Nursing College, Harbin, China
| | - Deyu Qi
- Department of Clinical Medicine, Heilongjiang Nursing College, Harbin, China
| | - Tao Zhang
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, China
| | - Yinkun Yan
- Center for Non-communicable Disease Management, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
- *Correspondence: Yinkun Yan,
| | - Wei Chen
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA, United States
| |
Collapse
|
9
|
Gao X, Li S, Dong S, Li J, Yan Y, Zhang T, Chen W. Association Between Body Weight and Telomere Length Is Predominantly Mediated Through C-Reactive Protein. J Clin Endocrinol Metab 2021; 106:e4634-e4640. [PMID: 34153093 DOI: 10.1210/clinem/dgab455] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Both obesity and inflammation are related to accelerated aging. It is not yet known whether inflammation mediates the effects of obesity on aging. OBJECTIVE This work aims to dissect the direct effect of body mass index (BMI) and its indirect effect through C-reactive protein (CRP) on leukocyte telomere length (LTL) to determine the mediation effect of CRP on the BMI-LTL association. METHODS The study cohort included 5451 adults (1404 Mexican American, 3114 White, and 933 Black individuals; 53.5% male; mean age = 49.2 years) from the 1999 to 2002 National Health and Nutrition Examination Survey. General mediation models were used to examine the mediation effect of CRP on the BMI-LTL association. RESULTS After adjusting for age, race, sex, physical activity, alcohol use, and serum cotinine, the total effect of BMI on LTL was significant (standardized regression coefficient, β = -.054, P < .001) without CRP included in the model. With inclusion of CRP in the model, the indirect effect of BMI on LTL through CRP was estimated at β equal to -.023 (P < .001), and the direct effect of BMI on LTL in its absolute value decreased to β equal to -.031 (P = .025). The mediation effect of CRP was estimated at 42.6%. The mediation model parameters did not differ significantly between race and sex groups. CONCLUSION These results suggest that the inverse BMI-LTL association is partly mediated by obesity-induced inflammation. The significant direct effect of BMI on LTL with removal of the mediation effect through CRP indicates that obesity is associated with LTL attrition also through other noninflammatory mechanisms.
Collapse
Affiliation(s)
- Xiao Gao
- The Second Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150001, China
| | - Shengxu Li
- Children's Minnesota Research Institute, Children's Hospitals and Clinics of Minnesota, Minneapolis, Minnesota 55404, USA
| | - Shiqiu Dong
- Department of Clinical Medicine, Heilongjiang Nursing College, Harbin, Heilongjiang 150080, China
| | - Jiaqi Li
- The Second Clinical Medical College, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150001, China
| | - Yinkun Yan
- Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Tao Zhang
- Department of Biostatistics, School of Public Health, Shandong University, Jinan, Shandong 250012, China
| | - Wei Chen
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana 70112, USA
| |
Collapse
|
10
|
Niu Z, Wen X, Buka SL, Wang M, Tian L, Loucks EB, Kubzansky LD, Mu L. Associations of telomere length at birth with predicted atherosclerotic lesions and cardiovascular disease risk factors in midlife: A 40-year longitudinal study. Atherosclerosis 2021; 333:67-74. [PMID: 34428605 DOI: 10.1016/j.atherosclerosis.2021.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/26/2021] [Accepted: 08/10/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND AND AIMS Adult telomere length (TL) is substantially determined by birth TL, but associations of birth TL with cardiovascular disease (CVD) are unknown. METHODS We included 144 adult offspring born in 1959-1966 from the Collaborative Perinatal Project, a US birth cohort. Birth TL was measured from banked cord blood with quantitative polymerase chain reaction. Atherosclerotic lesions were predicted by the Pathobiological Determinants of Atherosclerosis in Youth (PDAY) score that was based on blood pressure, lipids, hemoglobin A1c, and body weight at the midlife follow-up in 2003-2008 (average age: 42 years). Information on midlife CVD risk factors including the age at first diagnoses of hypertension, hypercholesterolemia, and diabetes was also collected. We used linear and logistic regression models to analyze associations of birth TL with the continuous PDAY score and categorical CVD risk factors, respectively, adjusting for prenatal confounders. RESULTS At midlife follow-up, 31.2% and 18.7% of participants had ever been diagnosed with hypercholesterolemia and hypertension, respectively, and 8.3% met the criteria for metabolic syndrome. Short birth TL (Quartile 1, Q1) was associated with a higher PDAY score (adjusted β: 1.78, 95% CI: 0.31, 3.25), increased odds of hypercholesterolemia (adjusted odds ratio [OR]: 3.23, 95% CI: 1.28, 8.18) and the presence of any cardiometabolic abnormalities (adjusted OR: 2.54, 95% CI: 1.00, 6.48) as compared to longer birth TL (Q2-Q4) after adjusting for prenatal confounders. CONCLUSIONS People born with short TL may be at increased risk of predicted midlife atherosclerotic lesions and hypercholesterolemia. Future studies with larger sample sizes and CVD morbidities are warranted to replicate our findings.
Collapse
Affiliation(s)
- Zhongzheng Niu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York at Buffalo, Buffalo, NY, USA
| | - Xiaozhong Wen
- Division of Behavioral Medicine, Department of Pediatrics, Jacobs School of Medicine and Biomedical Sciences, The State University of New York at Buffalo, Buffalo, NY, USA
| | - Stephen L Buka
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Meng Wang
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York at Buffalo, Buffalo, NY, USA; RENEW Institute, The State University of New York at Buffalo, Buffalo, NY, USA; Department of Environmental and Occupational Health Sciences, School of Public Health, University of Washington, Seattle, WA, USA
| | - Lili Tian
- Department of Biostatistics, School of Public Health and Health Professions, The State University of New York at Buffalo, Buffalo, NY, USA
| | - Eric B Loucks
- Department of Epidemiology, Brown University School of Public Health, Providence, RI, USA
| | - Laura D Kubzansky
- Department of Social and Behavioral Sciences and Lee Kum Sheung Center for Health and Happiness, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Lina Mu
- Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, The State University of New York at Buffalo, Buffalo, NY, USA.
| |
Collapse
|
11
|
Gavia-García G, Rosado-Pérez J, Arista-Ugalde TL, Aguiñiga-Sánchez I, Santiago-Osorio E, Mendoza-Núñez VM. Telomere Length and Oxidative Stress and Its Relation with Metabolic Syndrome Components in the Aging. BIOLOGY 2021; 10:biology10040253. [PMID: 33804844 PMCID: PMC8063797 DOI: 10.3390/biology10040253] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/20/2022]
Abstract
Simple Summary A link between telomere length and some age-related diseases has been identified, including metabolic syndrome. So far, there is no mechanism to explain the origin or cause of telomere shortening in this syndrome; however, oxidative stress is a constant factor. Therefore, we reviewed scientific evidence that supported the association between oxidative stress and telomere length dynamics, also examining how each of the metabolic syndrome components individually affects the length. In this regard, there is strong scientific evidence that an increase in the number of metabolic syndrome components is associated with a shorter telomere length, oxidative damage at the lipid and DNA level, and inflammation, as well as its other components, such as obesity, hyperglycemia, and hypertension, while for dyslipidemia, there is a little more discrepancy. The difficulty for the correct treatment of metabolic syndrome lies in its multifactorial nature. Hence, there is a need to carry out more studies on healthy lifestyles during aging to prevent and reduce oxidative damage and telomere wear during aging, and consequently the progression of chronic degenerative diseases, thus improving the living conditions of older people.
Abstract A great amount of scientific evidence supports that Oxidative Stress (OxS) can contribute to telomeric attrition and also plays an important role in the development of certain age-related diseases, among them the metabolic syndrome (MetS), which is characterised by clinical and biochemical alterations such as obesity, dyslipidaemia, arterial hypertension, hyperglycaemia, and insulin resistance, all of which are considered as risk factors for type 2 diabetes mellitus (T2DM) and cardiovascular diseases, which are associated in turn with an increase of OxS. In this sense, we review scientific evidence that supports the association between OxS with telomere length (TL) dynamics and the relationship with MetS components in aging. It was analysed whether each MetS component affects the telomere length separately or if they all affect it together. Likewise, this review provides a summary of the structure and function of telomeres and telomerase, the mechanisms of telomeric DNA repair, how telomere length may influence the fate of cells or be linked to inflammation and the development of age-related diseases, and finally, how the lifestyles can affect telomere length.
Collapse
Affiliation(s)
- Graciela Gavia-García
- Research Unit on Gerontology, FES Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.G.-G.); (J.R.-P.); (T.L.A.-U.)
| | - Juana Rosado-Pérez
- Research Unit on Gerontology, FES Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.G.-G.); (J.R.-P.); (T.L.A.-U.)
| | - Taide Laurita Arista-Ugalde
- Research Unit on Gerontology, FES Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.G.-G.); (J.R.-P.); (T.L.A.-U.)
| | - Itzen Aguiñiga-Sánchez
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (I.A.-S.); (E.S.-O.)
| | - Edelmiro Santiago-Osorio
- Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, FES Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (I.A.-S.); (E.S.-O.)
| | - Víctor Manuel Mendoza-Núñez
- Research Unit on Gerontology, FES Zaragoza, National Autonomous University of Mexico, Mexico City 09230, Mexico; (G.G.-G.); (J.R.-P.); (T.L.A.-U.)
- Correspondence: ; Tel.: +52-55-5623-0721; Fax: +52-55-5773-6330
| |
Collapse
|
12
|
Garfein J, Flannagan KS, Rittman D, Ramirez-Zea M, Villamor E. Leukocyte telomere length is inversely associated with a metabolic risk score in Mesoamerican children. Am J Hum Biol 2021; 34:e23596. [PMID: 33720476 DOI: 10.1002/ajhb.23596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 02/23/2021] [Accepted: 02/27/2021] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Leukocyte telomere length (LTL) may be involved in the etiology of the metabolic syndrome (MetS). We examined the associations of LTL with MetS and its components among Mesoamerican children and their adult parents, in a region where MetS prevalence is high. METHODS We conducted a cross-sectional study of 151 children aged 7-12 years and 346 parents from the capitals of Belize, Honduras, Nicaragua, Costa Rica, Panama, and Chiapas State, Mexico. We quantified LTL by qPCR on DNA extracted from whole blood. In children, we created an age- and sex-standardized metabolic risk score using waist circumference (WC), the homeostasis model of insulin resistance (HOMA-IR), blood pressure, serum high-density lipoprotein (HDL) cholesterol, and serum triglycerides. In adults, MetS was defined according to the National Cholesterol Education Program's Adult Treatment Panel III definition. We estimated mean differences in metabolic risk score and prevalence ratios of MetS across quartiles of LTL using multivariable-adjusted linear and Poisson regression models, respectively. RESULTS In children, every 1 LTL z-score was related to an adjusted 0.05 units lower (95% CI: -0.09, -0.02, P = 0.005) MetS risk score, through WC, HOMA-IR, and HDL. Among adults, LTL was not associated with MetS prevalence; however, every 1 LTL z-score was associated with an adjusted 34% lower prevalence of high fasting glucose (95% CI: 3%, 55%, p = .03). CONCLUSIONS Among Mesoamerican children, LTL is associated with an improved metabolic profile; among adults, LTL is inversely associated with the prevalence of high fasting glucose.
Collapse
Affiliation(s)
- Joshua Garfein
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Kerry S Flannagan
- Eunice Kennedy Shriver National Institute of Child Health and Development, Rockville, Maryland, USA
| | - Danielle Rittman
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Manuel Ramirez-Zea
- INCAP Research Center for the Prevention of Chronic Diseases (CIIPEC), Institute of Nutrition of Central America and Panama, Guatemala City, Guatemala
| | - Eduardo Villamor
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | | |
Collapse
|
13
|
Selvaraju V, Phillips M, Fouty A, Babu JR, Geetha T. Telomere Length as a Biomarker for Race-Related Health Disparities. Genes (Basel) 2021; 12:78. [PMID: 33435482 PMCID: PMC7827404 DOI: 10.3390/genes12010078] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/21/2022] Open
Abstract
Disparities between the races have been well documented in health and disease in the USA. Recent studies show that telomere length, a marker of aging, is associated with obesity and obesity-related diseases, such as heart disease and diabetes. The current study aimed to evaluate the connection between telomere length ratio, blood pressure, and childhood obesity. The telomere length ratio was measured in 127 children from both European American (EA) and African American (AA) children, aged 6-10 years old. AA children had a significantly high relative telomere to the single copy gene (T/S) ratio compared to EA children. There was no significant difference in the T/S ratio between normal weight (NW) and overweight/obese (OW/OB) groups of either race. Blood pressure was significantly elevated in AA children with respect to EA children. Hierarchical regression analysis adjusted for race, gender, and age expressed a significant relationship between the T/S ratio and diastolic pressure. Low T/S ratio participants showed a significant increase in systolic pressure, while a high T/S ratio group showed an increase in diastolic pressure and heart rate of AA children. In conclusion, our findings show that AA children have high T/S ratio compared to EA children. The high T/S ratio is negatively associated with diastolic pressure.
Collapse
Affiliation(s)
- Vaithinathan Selvaraju
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (V.S.); (M.P.); (A.F.); (J.R.B.)
| | - Megan Phillips
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (V.S.); (M.P.); (A.F.); (J.R.B.)
| | - Anna Fouty
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (V.S.); (M.P.); (A.F.); (J.R.B.)
| | - Jeganathan Ramesh Babu
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (V.S.); (M.P.); (A.F.); (J.R.B.)
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
| | - Thangiah Geetha
- Department of Nutrition, Dietetics, and Hospitality Management, Auburn University, Auburn, AL 36849, USA; (V.S.); (M.P.); (A.F.); (J.R.B.)
- Boshell Metabolic Diseases and Diabetes Program, Auburn University, Auburn, AL 36849, USA
| |
Collapse
|
14
|
Dong K, Peng X, Huang J, Xia S, Yang Y. Association of leukocyte telomere length with metabolic syndrome in type 2 diabetes mellitus. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2021; 26:43. [PMID: 34484375 PMCID: PMC8384009 DOI: 10.4103/jrms.jrms_793_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 10/06/2020] [Accepted: 02/10/2021] [Indexed: 11/18/2022]
Abstract
Background: Leukocyte telomere length (LTL) has been revealed to be associated with aging-related diseases such as metabolic syndrome (MetS) and Type 2 diabetes mellitus (T2DM). We aimed to investigate the correlation of LTL with MetS and its components in T2DM patients in this cross-sectional study. Materials and Methods: A total of 344 T2DM patients were enrolled into this study. LTL was measured by Southern blot-based terminal restriction fragment length analysis. MetS was clinically defined by 2007 Chinese Guidelines on Prevention and Treatment of Dyslipidemia in Adults. Results: Of 344 T2DM patients, 53% had MetS. T2DM patients with MetS had significantly longer LTL than those without MetS (6451.95 ± 51.10 base pairs vs. 6076.13 ± 55.13 base pairs, P < 0.001), especially when T2DM patients had poor glycemic control (hemoglobin A1c ≥7%). Meanwhile, the trend of longer LTL was associated with the increased components of MetS in T2DM patient. Finally, LTL had a significant association with MetS (odds ratio [OR]: 2.096, 95% confidence interval [CI] 1.337–3.285, P = 0.001), low levels of high-density lipoprotein-cholesterol (HDL-C) (OR: 2.412, 95% CI 1.350–4.308, P = 0.003) in T2DM patients. Conclusion: T2DM patients with MetS had a significantly longer LTL than those without MetS. The longer LTL was especially evident in T2DM patients with poor glycemic control. Longer LTL was positively associated with MetS, particularly low levels of HDL-C in T2DM patients.
Collapse
|
15
|
Brown R, Hailu EM, Needham BL, Roux AD, Seeman TE, Lin J, Mujahid MS. Neighborhood social environment and changes in leukocyte telomere length: The Multi-Ethnic Study of Atherosclerosis (MESA). Health Place 2020; 67:102488. [PMID: 33276262 DOI: 10.1016/j.healthplace.2020.102488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/10/2020] [Accepted: 11/16/2020] [Indexed: 12/01/2022]
Abstract
Given limited research on the impact of neighborhood environments on accelerated biological aging, we examined whether changes in neighborhood socioeconomic and social conditions were associated with change in leukocyte telomere length using 10 years of longitudinal data from the Multi-Ethnic Study of Atherosclerosis (years 2000-2011; N = 1031; mean age = 61, SD = 9.4). Leukocyte telomere length change was corrected for regression to the mean and neighborhood was defined as census tract. Neighborhood socioeconomic indicators (factor-based score of income, education, occupation, and wealth of neighborhood) and neighborhood social environment indicators (aesthetic quality, social cohesion, safety) were obtained from the U.S Census/American Community Survey and via study questionnaire, respectively. Results of linear mixed-effects models showed that independent of individual sociodemographic characteristics, each unit of improvement in neighborhood socioeconomic status was associated with slower telomere length attrition over 10-years (β = 0.002; 95% Confidence Interval (CI): 0.0001, 0.004); whereas each unit of increase in safety (β = -0.043; 95% CI: -0.069, -0.016) and overall neighborhood social environment score (β = -0.005; 95% CI: -0.009, -0.0004) were associated with more pronounced telomere attrition, after additionally adjusting for neighborhood socioeconomic status. This study provides support for considerations of the broader social and socioeconomic contexts in relation to biological aging. Future research should explore potential psychosocial mechanisms underlying these associations using longitudinal study designs with repeated observations.
Collapse
Affiliation(s)
- Rashida Brown
- Division of Epidemiology, School of Public Health, University of California Berkeley, 2121 Berkeley Way West #5302, Berkeley, CA, 94720, USA
| | - Elleni M Hailu
- Division of Epidemiology, School of Public Health, University of California Berkeley, 2121 Berkeley Way West #5302, Berkeley, CA, 94720, USA.
| | - Belinda L Needham
- Department of Epidemiology, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, USA
| | - Ana Diez Roux
- Department of Epidemiology and Biostatistics, Dornsife School of Public Health, Drexel University, 3215 Market Street, Philadelphia, PA, 19104, USA
| | - Teresa E Seeman
- Department of Geriatrics, David Geffen School of Medicine, University of California Los Angeles, 10833 Le Conte Ave, Los Angeles, CA, 90095, USA
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California San Francisco, 600 16th St, San Francisco, CA, 94158, USA
| | - Mahasin S Mujahid
- Division of Epidemiology, School of Public Health, University of California Berkeley, 2121 Berkeley Way West #5302, Berkeley, CA, 94720, USA
| |
Collapse
|
16
|
Rej PH, Gravlee CC, Mulligan CJ. Shortened telomere length is associated with unfair treatment attributed to race in African Americans living in Tallahassee, Florida. Am J Hum Biol 2019; 32:e23375. [PMID: 31867825 DOI: 10.1002/ajhb.23375] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Experiences of interpersonal discrimination are pervasive stressors in the lives of African Americans. Increased discrimination stress may cause premature aging. Telomere length (TL) is a plastic genetic trait that is an emerging indicator of cellular health and aging. Short TL is a risk factor for the earlier onset of disease. TL shortens with age, a process that may be accelerated by psychosocial stress. Our study explores the relationship between TL and experiences of discrimination in the form of self-reported unfair treatment (UT). METHODS Using a qPCR-based method, we measured TL in DNA from saliva samples provided by 135 African American adults from Tallahassee, FL. We developed discrimination measures using a modified survey that explores nine social domains of self-reported unfair treatment experienced both directly and indirectly. We used multiple regression to examine associations between UT and TL. RESULTS We found that racial discrimination in the form of self-reported unfair treatment attributed to race (UT-Race-Self) is inversely associated with TL. CONCLUSIONS The significant association between increased UT-Race-Self and shorter telomeres supports the hypothesis that psychosocial stress stemming from racial discrimination may affect TL. The potential impact of discrimination on TL may contribute to premature biological aging and racial health inequalities seen in African Americans.
Collapse
Affiliation(s)
- Peter H Rej
- Department of Anthropology, University of Washington, Seattle, Washington.,Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
| | -
- Health Equity Alliance of Tallahassee Steering Committee, Tallahassee, Florida: James Bellamy, Qasimah Boston, Edward Holifield, Miaisha Mitchell, and Cynthia Seaborn
| | - Clarence C Gravlee
- Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
| | - Connie J Mulligan
- Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
| |
Collapse
|
17
|
Brown L, García C, Ailshire J. Does Salivary Telomere Length Explain Race/Ethnic Differences in Aging? BIODEMOGRAPHY AND SOCIAL BIOLOGY 2019; 65:351-369. [PMID: 33335644 PMCID: PMC7740300 DOI: 10.1080/19485565.2020.1798736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Telomere length (TL) is a biomarker that can be used to characterize variability in aging and may explain race/ethnic differences in aging. Yet, it remains unclear if TL is related to aging-associated health risks in multi-ethnic populations or if it explains race/ethnic differences in health. We examine whether salivary TL (STL) explains any of the race/ethnic variability in 15 indicators of high-risk biological, physical and cognitive health among 4,074 white, black, and Latinx older adults ages 54+ in the 2008 Health and Retirement Study. TL was assayed from saliva using quantitative PCR (T/S ratio). Decomposition analyses from logistic regression models show variation in STL does not account for any of the observed race/ethnic differences health. In age-adjusted, race-stratified models, STL was associated with HDL, total cholesterol, and lung function among whites, but was not associated with any markers of health among black or Latinx groups. In this diverse national sample of older adults, STL does not account for race/ethnic differences in late life health, is associated with relatively few indicators of health among whites, and is not associated with indicators of health among black or Latinx groups. STL may not be a useful biomarker for understanding racial/ethnic differences in population aging among older adults.
Collapse
Affiliation(s)
- Lauren Brown
- Population Studies Center, Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
| | - Catherine García
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| | - Jennifer Ailshire
- Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA
| |
Collapse
|
18
|
Bateson M, Eisenberg DTA, Nettle D. Controlling for baseline telomere length biases estimates of the rate of telomere attrition. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190937. [PMID: 31824705 PMCID: PMC6837209 DOI: 10.1098/rsos.190937] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 09/28/2019] [Indexed: 06/10/2023]
Abstract
Longitudinal studies have sought to establish whether environmental exposures such as smoking accelerate the attrition of individuals' telomeres over time. These studies typically control for baseline telomere length (TL) by including it as a covariate in statistical models. However, baseline TL also differs between smokers and non-smokers, and telomere attrition is spuriously linked to baseline TL via measurement error and regression to the mean. Using simulated datasets, we show that controlling for baseline TL overestimates the true effect of smoking on telomere attrition. This bias increases with increasing telomere measurement error and increasing difference in baseline TL between smokers and non-smokers. Using a meta-analysis of longitudinal datasets, we show that as predicted, the estimated difference in telomere attrition between smokers and non-smokers is greater when statistical models control for baseline TL than when they do not, and the size of the discrepancy is positively correlated with measurement error. The bias we describe is not specific to smoking and also applies to other exposures. We conclude that to avoid invalid inference, models of telomere attrition should not control for baseline TL by including it as a covariate. Many claims of accelerated telomere attrition in individuals exposed to adversity need to be re-assessed.
Collapse
Affiliation(s)
- Melissa Bateson
- Centre for Behaviour and Evolution and Institute of Neuroscience, Newcastle University, Henry Wellcome Building, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | | | - Daniel Nettle
- Centre for Behaviour and Evolution and Institute of Neuroscience, Newcastle University, Henry Wellcome Building, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| |
Collapse
|
19
|
Meier HCS, Hussein M, Needham B, Barber S, Lin J, Seeman T, Diez Roux A. Cellular response to chronic psychosocial stress: Ten-year longitudinal changes in telomere length in the Multi-Ethnic Study of Atherosclerosis. Psychoneuroendocrinology 2019; 107:70-81. [PMID: 31112903 PMCID: PMC6635040 DOI: 10.1016/j.psyneuen.2019.04.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 02/14/2019] [Accepted: 04/26/2019] [Indexed: 01/01/2023]
Abstract
Previous studies have demonstrated an inverse association between chronic psychosocial stress and leukocyte telomere length (LTL), a potential marker of cellular aging. However, due to paucity of longitudinal data, responses of LTL and the LTL aging trajectory to changes in chronic stress exposure remain less well understood. Using data from the Stress I and II ancillary studies of the Multi-Ethnic Study of Atherosclerosis, we estimated the 10-year longitudinal (n = 1,158) associations of within-person changes in chronic stress with changes in LTL, as well as the pooled, cross-sectional associations of chronic stress and LTL (total n = 2,231). We measured chronic stress from both individual and neighborhood-environment sources. At the individual level, we calculated a summary score of each participant's rating of their ongoing (>6 months) material/social problems as moderately/very stressful on the Chronic Burden Scale. Neighborhood-level stress was measured using a summary score of reverse-coded MESA Neighborhood safety, aesthetic quality, and social cohesion scales. Quantiles of these scores were empirically categorized as high, moderate, or low stress. We then summed these individual- and neighborhood-level categorical variables for a total stress measure. Longitudinal within-person associations were estimated with fixed-effects models, which control for all time-invariant confounding, with additional control for time-varying demographics, lagged behaviors and chronic conditions, and specimen storage duration, as well as correction for regression to the mean. Change from low to high total chronic stress was associated with telomere shortening by 0.054 units [95% confidence interval: -0.095, -0.013] over 10 years. This was consistent with, though stronger in magnitude than, cross-sectional estimates. Change in individual-level stress was the primary driver of this effect. We also found suggestive evidence that 1) individuals with persistently high stress experienced the least shortening of telomeres, and 2) changes in individual-level stress were associated with stronger telomere shortening among women, whereas changes in neighborhood stress were associated with stronger shortening among men. Our findings provide longitudinal support to existing evidence, and point to interesting dynamics in telomere attrition across stress levels and genders.
Collapse
Affiliation(s)
- Helen C S Meier
- Joseph J. Zilber School of Public Health, University of Wisconsin-Milwaukee, 1240 N. 10th St., Milwaukee, WI, 53205, USA.
| | - Mustafa Hussein
- Joseph J. Zilber School of Public Health, University of Wisconsin-Milwaukee, 1240 N. 10th St., Milwaukee, WI, 53205, USA.
| | - Belinda Needham
- Department of Epidemiology, University of Michigan School of Public Health, 1415 Washington Heights, Ann Arbor, MI, 48109, USA.
| | - Sharrelle Barber
- Department of Epidemiology and Biostatistics, and the Urban Health Collaborative, Drexel University Dornsife School of Public Health, 3215 Market St., Philadelphia, PA, 19104, USA.
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, 600 16th Street, Room S312F Genentech Hall, San Francisco, CA, 94158, USA.
| | - Teresa Seeman
- Department of Medicine, Division of Geriatrics, University of California, Los Angeles, 10945 Le Conte Avenue, Suite 2339, Los Angeles, CA, 90095, USA.
| | - Ana Diez Roux
- Department of Epidemiology and Biostatistics, and the Urban Health Collaborative, Drexel University Dornsife School of Public Health, 3215 Market St., Philadelphia, PA, 19104, USA.
| |
Collapse
|
20
|
Shorter somatic telomere can be an increased risk for hospitalization. Mol Cell Biochem 2018; 455:1-5. [PMID: 30353495 DOI: 10.1007/s11010-018-3465-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/17/2018] [Indexed: 10/28/2022]
Abstract
Somatic telomere DNA length is known to shorten with certain disease states and senescence. Furthermore, we have reported that the telomere length of a sub-healthy population also correlates with the blood data of laboratory tests. These facts suggest that patients with shorter telomere length tend to be hospitalized more easily than patients with longer telomere length. And such hospitalization tendencies can also be reflected in differences in clinical laboratory data. To address this issue, we evaluated and compared the telomere length and clinical laboratory data of outpatients and inpatients. In this study, 35 inpatients with chronic illness and 38 outpatients with one or more weeks without hospitalization experience were enrolled. Telomere length was shorter in hospitalized patients than outpatients. Inpatients and outpatients showed significant differences in some laboratory test results. Male outpatients showed higher values of fast blood sugar, HbA1c, blood urea nitrogen, creatinine, C-reactive protein, red blood cell count, and hemoglobin. Among female outpatients, the values of aspartate aminotransferase, alanine aminotransferase, albumin, creatine kinase, red blood cell count and hemoglobin were high. Of these, only albumin levels showed a positive correlation with telomere length in both sexes. Unexpectedly, all the other clinical data distinguishing outpatients and inpatients showed no significant association with telomere length. These items appeared to be related to hospital risk independently of TL. Having a shorter somatic telomere length appeared to be at a higher risk of hospitalization. This risk can be augmented by further complications such as deterioration of nutritional status and anemia. Maintaining sufficiently high nutritional status and erythropoietic potential may lead to avoidance of clinical events that require hospitalization.
Collapse
|
21
|
Gielen M, Hageman GJ, Antoniou EE, Nordfjall K, Mangino M, Balasubramanyam M, de Meyer T, Hendricks AE, Giltay EJ, Hunt SC, Nettleton JA, Salpea KD, Diaz VA, Farzaneh-Far R, Atzmon G, Harris SE, Hou L, Gilley D, Hovatta I, Kark JD, Nassar H, Kurz DJ, Mather KA, Willeit P, Zheng YL, Pavanello S, Demerath EW, Rode L, Bunout D, Steptoe A, Boardman L, Marti A, Needham B, Zheng W, Ramsey-Goldman R, Pellatt AJ, Kaprio J, Hofmann JN, Gieger C, Paolisso G, Hjelmborg JBH, Mirabello L, Seeman T, Wong J, van der Harst P, Broer L, Kronenberg F, Kollerits B, Strandberg T, Eisenberg DTA, Duggan C, Verhoeven JE, Schaakxs R, Zannolli R, dos Reis RMR, Charchar FJ, Tomaszewski M, Mons U, Demuth I, Iglesias Molli AE, Cheng G, Krasnienkov D, D'Antono B, Kasielski M, McDonnell BJ, Ebstein RP, Sundquist K, Pare G, Chong M, Zeegers MP. Body mass index is negatively associated with telomere length: a collaborative cross-sectional meta-analysis of 87 observational studies. Am J Clin Nutr 2018; 108:453-475. [PMID: 30535086 PMCID: PMC6454526 DOI: 10.1093/ajcn/nqy107] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 04/27/2018] [Indexed: 12/12/2022] Open
Abstract
Background Even before the onset of age-related diseases, obesity might be a contributing factor to the cumulative burden of oxidative stress and chronic inflammation throughout the life course. Obesity may therefore contribute to accelerated shortening of telomeres. Consequently, obese persons are more likely to have shorter telomeres, but the association between body mass index (BMI) and leukocyte telomere length (TL) might differ across the life span and between ethnicities and sexes. Objective A collaborative cross-sectional meta-analysis of observational studies was conducted to investigate the associations between BMI and TL across the life span. Design Eighty-seven distinct study samples were included in the meta-analysis capturing data from 146,114 individuals. Study-specific age- and sex-adjusted regression coefficients were combined by using a random-effects model in which absolute [base pairs (bp)] and relative telomere to single-copy gene ratio (T/S ratio) TLs were regressed against BMI. Stratified analysis was performed by 3 age categories ("young": 18-60 y; "middle": 61-75 y; and "old": >75 y), sex, and ethnicity. Results Each unit increase in BMI corresponded to a -3.99 bp (95% CI: -5.17, -2.81 bp) difference in TL in the total pooled sample; among young adults, each unit increase in BMI corresponded to a -7.67 bp (95% CI: -10.03, -5.31 bp) difference. Each unit increase in BMI corresponded to a -1.58 × 10(-3) unit T/S ratio (0.16% decrease; 95% CI: -2.14 × 10(-3), -1.01 × 10(-3)) difference in age- and sex-adjusted relative TL in the total pooled sample; among young adults, each unit increase in BMI corresponded to a -2.58 × 10(-3) unit T/S ratio (0.26% decrease; 95% CI: -3.92 × 10(-3), -1.25 × 10(-3)). The associations were predominantly for the white pooled population. No sex differences were observed. Conclusions A higher BMI is associated with shorter telomeres, especially in younger individuals. The presently observed difference is not negligible. Meta-analyses of longitudinal studies evaluating change in body weight alongside change in TL are warranted.
Collapse
Affiliation(s)
- Marij Gielen
- Departments of Complex Genetics,Address correspondence to MG (e-mail: )
| | - Geja J Hageman
- Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center, Maastricht University, Netherlands
| | - Evangelia E Antoniou
- Department of Clinical Psychological Science, Faculty of Psychology and Neuroscience, Maastricht University, Netherlands
| | | | - Massimo Mangino
- Twin Research and Genetic Epidemiology, King's College London, London, United Kingdom,NIHR Biomedical Research Center at Guy's and St. Thomas’ Foundation Trust, London, United Kingdom
| | | | - Tim de Meyer
- Department of Mathematical Modeling, Statistics, and Bioinformatics, Ghent University, Ghent, Belgium
| | - Audrey E Hendricks
- Population Sciences Branch of the National Heart, Lung, and Blood Institute (NHLBI), NIH, NHLBI's Framingham Heart Study, Framingham, MA,Department of Mathematical and Statistical Sciences, University of Colorado–Denver, Denver, CO
| | - Erik J Giltay
- Department of Psychiatry, Leiden University Medical Center, Leiden, Netherlands
| | - Steven C Hunt
- Cardiovascular Genetics Division, Department of Medicine, University of Utah, Salt Lake City, UT
| | - Jennifer A Nettleton
- Division of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center, Houston, TX
| | - Klelia D Salpea
- Department of Molecular Biology and Genetics, BSRC “Alexander Fleming,” Athens, Greece
| | - Vanessa A Diaz
- Department of Family Medicine, Medical University of South Carolina, Charleston, SC
| | - Ramin Farzaneh-Far
- Division of Cardiology, San Francisco General Hospital, San Francisco, CA
| | - Gil Atzmon
- Department of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, NY, and Department of Biology, Faculty of Natural Science, University of Haifa, Haifa, Israel
| | - Sarah E Harris
- Center for Cognitive Aging and Cognitive Epidemiology and Medical Genetics Section and Center for Genomics and Experimental Medicine and MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Lifang Hou
- Department of Preventive Medicine and Robert H Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - David Gilley
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN
| | - Iiris Hovatta
- Department of Biosciences, University of Helsinki, Helsinki, Finland,Department of Health, National Institute for Health and Welfare, Helsinki, Finland
| | - Jeremy D Kark
- Epidemiology Unit, Hebrew University–Hadassah School of Public Health and Community Medicine, Jerusalem, Israel
| | - Hisham Nassar
- Department of Cardiology, Hadassah University Medical Center, Jerusalem, Israel
| | - David J Kurz
- Department of Cardiology, Triemli Hospital, Zurich, Switzerland
| | - Karen A Mather
- Centre for Healthy Brain Ageing, Psychiatry, UNSW Australia, Sydney, Australia
| | - Peter Willeit
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria, and Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Yun-Ling Zheng
- Department of Oncology, Georgetown University Medical Center, Georgetown University, Washington, DC
| | - Sofia Pavanello
- Department of Cardiac, Thoracic, and Vascular Sciences, Unit of Occupational Medicine, University of Padova, Padova, Italy
| | - Ellen W Demerath
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, MN
| | - Line Rode
- The Copenhagen General Population Study, Department of Clinical Biochemistry, Copenhagen University Hospital, Herlev and Gentofte Hospital, Copenhagen, Denmark
| | - Daniel Bunout
- Institute of Nutrition and Food Technology University of Chile, Santiago, Chile
| | - Andrew Steptoe
- Department of Epidemiology and Public Health, University College London, London, United Kingdom
| | - Lisa Boardman
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, MN
| | - Amelia Marti
- Department of Nutrition, Food Science, and Physiology, University of Navarra, Pamplona, Spain,Instituto de Investigación Sanitaria de Navarra, Pamplona, Spain,CIBER Fisiopatología de la Obesidad y Nutrición, (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
| | - Belinda Needham
- Department of Epidemiology, University of Michigan, Ann Arbor, MI
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN
| | | | | | - Jaakko Kaprio
- Department of Public Health,Institute for Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Jonathan N Hofmann
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, MD
| | - Christian Gieger
- Research Unit of Molecular Epidemiology and Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Giuseppe Paolisso
- Department of Medical, Surgical, Neurological, Metabolic, and Geriatric Sciences, Second University of Naples, Naples, Italy
| | - Jacob B H Hjelmborg
- Department of Epidemiology, Biostatistics, and Biodemography, Institute of Public Health, University of Southern Denmark, Odense C, Denmark
| | - Lisa Mirabello
- Department of Medical, Surgical, Neurological, Metabolic, and Geriatric Sciences, Second University of Naples, Naples, Italy
| | - Teresa Seeman
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Jason Wong
- Stanford University School of Medicine, Stanford, CA
| | - Pim van der Harst
- Department of Cardiology, University Medical Center Groningen, Groningen, Netherlands
| | - Linda Broer
- Department of Internal Medicine, Erasmus MC, Rotterdam, Netherlands
| | - Florian Kronenberg
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular, and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Barbara Kollerits
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular, and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Timo Strandberg
- University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland; Center for Life Course Epidemiology, University of Oulu, Oulu, Finland
| | - Dan T A Eisenberg
- Department of Anthropology and Center for Studies in Demography and Ecology, University of Washington, Seattle, WA
| | | | - Josine E Verhoeven
- Department of Psychiatry, VU University Medical Center, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Roxanne Schaakxs
- Department of Psychiatry, VU University Medical Center, Amsterdam Public Health Research Institute, Amsterdam, Netherlands
| | - Raffaela Zannolli
- Pediatrics Unit, Azienda Ospedaliera Universitaria, Senese/University of Siena, Policlinico Le Scotte, Siena, Italy
| | - Rosana M R dos Reis
- Department of Gynecology and Obstetrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Fadi J Charchar
- School of Science and Technology, Federation University Australia, Department of Physiology, University of Melbourne, Melbourne, Australia, and Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom
| | - Maciej Tomaszewski
- Division of Cardiovascular Sciences, Faculty of Medicine, Biology, and Health, University of Manchester, Manchester, United Kingdom,Division of Medicine, Manchester University NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
| | - Ute Mons
- Division of Clinical Epidemiology and Aging Research,Cancer Prevention Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ilja Demuth
- Charité–Universitätsmedizin Berlin (corporate member of Freie Universität Berlin), Humboldt-Universität zu Berlin, and Berlin Institute of Health, Lipid Clinic at the Interdisciplinary Metabolism Center, Berlin, Germany
| | - Andrea Elena Iglesias Molli
- CONICET-Universidad de Buenos Aires. Instituto de Inmunología, Genética y Metabolismo (INIGEM). Laboratorio de Diabetes y Metabolismo, Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Guo Cheng
- Department of Nutrition, Food Safety, and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China
| | - Dmytro Krasnienkov
- Department of Epigenetics, DF Chebotarev State Institute of Gerontology NAMS of Ukraine, Kyiv, Ukraine
| | - Bianca D'Antono
- Research Center, Montreal Heart Institute, and Psychology Department, University of Montreal, Montreal, Quebec, Canada
| | - Marek Kasielski
- Bases of Clinical Medicine Teaching Center, Medical University of Lodz, Lodz, Poland
| | - Barry J McDonnell
- Cardiff School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, United Kingdom
| | | | - Kristina Sundquist
- Center for Primary Health Care Research, Lund University, Region Skåne, Lund, Sweden
| | - Guillaume Pare
- Population Health Research Institute and McMaster University, Hamilton, Canada
| | - Michael Chong
- Population Health Research Institute and McMaster University, Hamilton, Canada
| | - Maurice P Zeegers
- Departments of Complex Genetics,CAPHRI School for Public Health and Primary Care, Maastricht University, Maastricht, Netherlands
| | | |
Collapse
|
22
|
Inhibition of vascular smooth muscle cells premature senescence with rutin attenuates and stabilizes diabetic atherosclerosis. J Nutr Biochem 2018; 51:91-98. [DOI: 10.1016/j.jnutbio.2017.09.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 08/07/2017] [Accepted: 09/12/2017] [Indexed: 01/21/2023]
|
23
|
Zhan Y, Karlsson IK, Karlsson R, Tillander A, Reynolds CA, Pedersen NL, Hägg S. Exploring the Causal Pathway From Telomere Length to Coronary Heart Disease. Circ Res 2017; 121:214-219. [DOI: 10.1161/circresaha.116.310517] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 05/09/2017] [Accepted: 05/16/2017] [Indexed: 12/13/2022]
Abstract
Rationale:
Observational studies have found shorter leukocyte telomere length (TL) to be a risk factor for coronary heart disease (CHD), and recently the association was suggested to be causal. However, the relationship between TL and common metabolic risk factors for CHD is not well understood. Whether these risk factors could explain pathways from TL to CHD warrants further attention.
Objective:
To examine whether metabolic risk factors for CHD mediate the causal pathway from short TL to increased risk of CHD using a network Mendelian randomization design.
Methods and Results:
Summary statistics from several genome-wide association studies were used in a 2-sample Mendelian randomization study design. Network Mendelian randomization analysis—an approach using genetic variants as the instrumental variables for both the exposure and mediator to infer causality—was performed to examine the causal association between telomeres and CHD and metabolic risk factors. Summary statistics from the ENGAGE Telomere Consortium were used (n=37 684) as a TL genetic instrument, CARDIoGRAMplusC4D Consortium data were used (case=22 233 and control=64 762) for CHD, and other consortia data were used for metabolic traits (fasting insulin, triglyceride, total cholesterol, low-density lipoprotein cholesterol, fasting glucose, diabetes mellitus, glycohemoglobin, body mass index, waist circumference, and waist:hip ratio). One-unit increase of genetically determined TL was associated with −0.07 (95% confidence interval, −0.01 to −0.12;
P
=0.01) lower log-transformed fasting insulin (pmol/L) and 21% lower odds (95% confidence interval, 3–35;
P
=0.02) of CHD. Higher genetically determined log-transformed fasting insulin level was associated with higher CHD risk (odds ratio, 1.86; 95% confidence interval, 1.01–3.41;
P
=0.04).
Conclusions:
Overall, our findings support a role of insulin as a mediator on the causal pathway from shorter telomeres to CHD pathogenesis.
Collapse
Affiliation(s)
- Yiqiang Zhan
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| | - Ida K. Karlsson
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| | - Robert Karlsson
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| | - Annika Tillander
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| | - Chandra A. Reynolds
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| | - Nancy L. Pedersen
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| | - Sara Hägg
- From the Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden (Y.Z., I.K.K., R.K., A.T., N.L.P., S.H.); and Department of Psychology, University of California, Riverside (C.A.R.)
| |
Collapse
|
24
|
Mazidi M, Kengne AP, Sahebkar A, Banach M. Telomere Length Is Associated With Cardiometabolic Factors in US Adults. Angiology 2017; 69:164-169. [PMID: 28583002 DOI: 10.1177/0003319717712860] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Telomere length (TL) has been associated with age-related health outcomes. We investigated the relationship of TL with cardiometabolic risk profile in adult Americans. We used the National Health and Nutrition Examination Surveys for 1999 to 2002, accounting for complex sampling and survey design. Of the 8892 eligible participants, 47.8% (n = 4123) were men. Mean serum high-density lipoprotein cholesterol concentrations significantly increased across increasing TL quarters ( P = .013), and mean fat mass, fat-free mass, hemoglobin A1c (HbA1c), and C-reactive protein significantly decreased across increasing TL quarters (all P < .001) in men. Only HbA1c levels significantly decreased across increasing TL quarters ( P = .041) in women. Males in the upper quarter of TL had lower (38%) odds of prevalent metabolic syndrome compared with those in the lower quarter ( P < .001). These results support the hypotheses that cardiometabolic factors are related to TL, especially in men.
Collapse
Affiliation(s)
- Mohsen Mazidi
- 1 State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, China.,2 Institute of Genetics and Developmental Biology, International College, University of Chinese Academy of Science, Beijing, China
| | - Andre Pascal Kengne
- 3 Non-Communicable Disease Research Unit, South African Medical Research Council, Cape Town, South Africa.,4 Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Amirhossein Sahebkar
- 5 Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maciej Banach
- 6 Department of Hypertension, Chair of Nephrology and Hypertension, Medical University of Lodz, Lodz, Poland.,7 Polish Mother's Memorial Hospital Research Institute (PMMHRI), Lodz, Poland
| |
Collapse
|
25
|
Yoshida K, Misumi M, Kubo Y, Yamaoka M, Kyoizumi S, Ohishi W, Hayashi T, Kusunoki Y. Long-Term Effects of Radiation Exposure and Metabolic Status on Telomere Length of Peripheral Blood T Cells in Atomic Bomb Survivors. Radiat Res 2016; 186:367-376. [DOI: 10.1667/rr14389.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
26
|
Borresen EC, Brown DG, Harbison G, Taylor L, Fairbanks A, O'Malia J, Bazan M, Rao S, Bailey SM, Wdowik M, Weir TL, Brown RJ, Ryan EP. A Randomized Controlled Trial to Increase Navy Bean or Rice Bran Consumption in Colorectal Cancer Survivors. Nutr Cancer 2016; 68:1269-1280. [PMID: 27689688 DOI: 10.1080/01635581.2016.1224370] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Consumption of navy beans (NB) and rice bran (RB) have been shown to inhibit colon carcinogenesis. Given the overall poor diet quality in colorectal cancer (CRC) survivors and low reported intake of whole grains and legumes, practical strategies to increase consumption merit attention. This study determined feasibility of increasing NB or RB intake in CRC survivors to increase dietary fiber and examined serum inflammatory biomarkers and telomere lengths. Twenty-nine subjects completed a randomized controlled trial with foods that included cooked NB powder (35 g/day), heat-stabilized RB (30 g/day), or no additional ingredient. Fasting blood, food logs, and gastrointestinal health questionnaires were collected. The amount of NB or RB consumed equated to 4-9% of subjects' daily caloric intake and no major gastrointestinal issues were reported with increased consumption. Dietary fiber amounts increased in NB and RB groups at Weeks 2 and 4 compared to baseline and to control (P ≤ 0.01). Telomere length correlated with age and HDL cholesterol at baseline, and with improved serum amyloid A (SAA) levels at Week 4 (P ≤ 0.05). This study concludes feasibility of increased dietary NB and RB consumption to levels associated with CRC chemoprevention and warrants longer-term investigations with both foods in high-risk populations that include cancer prevention and control outcomes.
Collapse
Affiliation(s)
- Erica C Borresen
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Dustin G Brown
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Greg Harbison
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Lynn Taylor
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Amanda Fairbanks
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Joanne O'Malia
- b University of Colorado Health-North Cancer Clinical Research , Fort Collins , Colorado , USA
| | - Marlon Bazan
- b University of Colorado Health-North Cancer Clinical Research , Fort Collins , Colorado , USA
| | - Sangeeta Rao
- c Department of Clinical Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Susan M Bailey
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA
| | - Melissa Wdowik
- d Department of Food Science and Human Nutrition , Colorado State University , Fort Collins , Colorado , USA.,e Kendall Reagan Nutrition Center , Colorado State University , Fort Collins , Colorado , USA
| | - Tiffany L Weir
- d Department of Food Science and Human Nutrition , Colorado State University , Fort Collins , Colorado , USA
| | - Regina J Brown
- f University of Colorado School of Medicine , Aurora , Colorado , USA
| | - Elizabeth P Ryan
- a Department of Environmental and Radiological Health Sciences , Colorado State University , Fort Collins , Colorado , USA.,e Kendall Reagan Nutrition Center , Colorado State University , Fort Collins , Colorado , USA.,g University of Colorado Cancer Center , Aurora , Colorado , USA
| |
Collapse
|
27
|
Ahrens KA, Rossen LM, Simon AE. Relationship Between Mean Leucocyte Telomere Length and Measures of Allostatic Load in US Reproductive-Aged Women, NHANES 1999-2002. Paediatr Perinat Epidemiol 2016; 30:325-35. [PMID: 26854139 PMCID: PMC6697084 DOI: 10.1111/ppe.12277] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Reproductive health disparities may be partly explained by the cumulative effects of chronic stress experienced by socially disadvantaged groups. Although, telomere length (TL) and allostatic load score have each been used as biological markers of stress, the relationship between these two measures is unknown. METHODS We investigated the association between leucocyte TL and allostatic load score in 1503 non-pregnant women (20-44 years) participating in the National Health and Nutrition Examination Survey, 1999-2002. We constructed six different allostatic load scores using either quartile- or clinical-based cut-points for 14 biomarkers based on previously published methods. We estimated associations between TL and allostatic load scores and component biomarkers using linear regression, also assessing interactions by race/ethnicity. RESULTS After adjustment for age, longer TL was associated with higher HDL cholesterol and lower C-reactive protein and creatinine clearance; TL was not associated with the other component biomarkers. Shorter TL was associated with higher allostatic load scores for the two clinical cut-point-based scores after adjustment for age, but not the four scores based on quartile cut-points. Significant interactions by race/ethnicity were observed for TL and HbA1c and triglycerides, but not for other component biomarkers or allostatic load scores. CONCLUSIONS Although TL and allostatic load score are both considered measures of cumulative stress, most component biomarkers and scores using quartile-based cut-points were not associated with TL. In reproductive-aged women, allostatic load scores using clinical-based cut-points were more strongly associated with TL compared with quartile-based scores.
Collapse
Affiliation(s)
- Katherine A. Ahrens
- National Center for Health Statistics; Centers for Disease Control and Prevention; Office of Analysis & Epidemiology; Infant, Child & Women's Health Statistics Branch; Hyattsville MD
| | - Lauren M. Rossen
- National Center for Health Statistics; Centers for Disease Control and Prevention; Office of Analysis & Epidemiology; Infant, Child & Women's Health Statistics Branch; Hyattsville MD
| | - Alan E. Simon
- National Center for Health Statistics; Centers for Disease Control and Prevention; Office of Analysis & Epidemiology; Infant, Child & Women's Health Statistics Branch; Hyattsville MD
| |
Collapse
|
28
|
Shin YA, Lee KY. Low estrogen levels and obesity are associated with shorter telomere lengths in pre- and postmenopausal women. J Exerc Rehabil 2016; 12:238-46. [PMID: 27419121 PMCID: PMC4934970 DOI: 10.12965/jer.1632584.292] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 05/06/2016] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to determine whether there is an association between leukocyte telomere length (LTL), and estrogen level, oxidative stress, cardiovascular disease (CVD) risk factors, and cardiorespiratory fitness (CRF) in pre- and postmenopausal obese women. Fifty-four obese women (premenopausal, n=25; postmenopausal, n=29) were selected to participate in this study. The outcome measurements in the pre- and postmenopausal groups were compared using independent t-tests and Pearson correlation analysis. The estrogen level (P<0.001), LTL (P<0.05), high-density lipoprotein level (P<0.05), and CRF (P<0.001) were higher in premenopausal women than in postmenopausal women. The body fat percentage (P<0.05) and triglyceride concentration (P<0.05) were lower in premenopausal women than in postmenopausal women. There were no significant associations between LTL, CVD risk, CRF, and oxidative stress and antioxidant enzyme activity in pre-menopausal women. The body mass index (BMI) and body fat percent-age in postmenopausal women were negatively associated with LTL (P<0.05). When all women were considered (i.e., both pre- and post-menopause), the BMI, percentage of fat, and waist circumference had a negative association with LTL (P<0.05), and estrogen levels were positively associated with LTL (P<0.05). Decreased estrogen levels after menopause, a pivotal factor in the biology of aging, and obesity were more associated with shorter telomere lengths in pre- and postmenopausal women than aerobic capacity and other CVD risk factors.
Collapse
Affiliation(s)
- Yun-A Shin
- Department of Prescription and Rehabilitation, College of Sports Science, Dankook University, Cheonan,
Korea
- Department of Kinesiologic Medical Science, Graduate School Dankook University, Cheonan,
Korea
- Corresponding author: Yun-A Shin http://orcid.org/0000-0002-8480-3454, Department of Prescription and Rehabilitation, College of Sports Science, 119 Dankook University, Dandae-ro, Dongnam-gu, Cheonan 31116, Korea, Tel: +82-41-550-3831, Fax: +82-41-550-3830, E-mail:
| | | |
Collapse
|
29
|
Kerimi A, Williamson G. At the interface of antioxidant signalling and cellular function: Key polyphenol effects. Mol Nutr Food Res 2016; 60:1770-88. [PMID: 26887821 PMCID: PMC5021119 DOI: 10.1002/mnfr.201500940] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 02/09/2016] [Accepted: 02/10/2016] [Indexed: 12/18/2022]
Abstract
The hypothesis that dietary (poly)phenols promote well‐being by improving chronic disease‐risk biomarkers, such as endothelial dysfunction, chronic inflammation and plasma uric acid, is the subject of intense current research, involving human interventions studies, animal models and in vitro mechanistic work. The original claim that benefits were due to the direct antioxidant properties of (poly)phenols has been mostly superseded by detailed mechanistic studies on specific molecular targets. Nevertheless, many proposed mechanisms in vivo and in vitro are due to modulation of oxidative processes, often involving binding to specific proteins and effects on cell signalling. We review the molecular mechanisms for 3 actions of (poly)phenols on oxidative processes where there is evidence in vivo from human intervention or animal studies. (1) Effects of (poly) phenols on pathways of chronic inflammation leading to prevention of some of the damaging effects associated with the metabolic syndrome. (2) Interaction of (poly)phenols with endothelial cells and smooth muscle cells, leading to effects on blood pressure and endothelial dysfunction, and consequent reduction in cardiovascular disease risk. (3) The inhibition of xanthine oxidoreductase leading to modulation of intracellular superoxide and plasma uric acid, a risk factor for developing type 2 diabetes.
Collapse
Affiliation(s)
- Asimina Kerimi
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| | - Gary Williamson
- School of Food Science and Nutrition, University of Leeds, Leeds, UK
| |
Collapse
|
30
|
Müezzinler A, Mons U, Dieffenbach AK, Butterbach K, Saum KU, Schick M, Stammer H, Boukamp P, Holleczek B, Stegmaier C, Brenner H. Smoking habits and leukocyte telomere length dynamics among older adults: Results from the ESTHER cohort. Exp Gerontol 2015; 70:18-25. [PMID: 26255046 DOI: 10.1016/j.exger.2015.07.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 04/30/2015] [Accepted: 07/06/2015] [Indexed: 01/15/2023]
Abstract
BACKGROUND & AIMS Leukocyte telomere length (LTL) shortens with age and short LTL has been associated with increased mortality and increased risk for some age-related outcomes. This study aims to analyse the associations of smoking habits with LTL and rate of LTL change per year in older adults. METHODS LTL was measured by quantitative PCR at baseline in 3600 older adults, who were enrolled in a population-based cohort study in Germany. For longitudinal analyses, measurements were repeated in blood samples obtained at 8-year follow-up from 1000 participants. Terminal Restriction Fragment analysis was additionally performed in a sub-sample to obtain absolute LTL in base pairs. Multivariate linear regression models were used to estimate associations of smoking habits with baseline LTL and changes in LTL over time. RESULTS LTL was inversely associated with age (r=-0.090, p<0.0001). Women had longer LTL than men (p<0.0001). Smoking was inversely associated with LTL. On average, current smokers had 73 base pairs (BP) shorter LTL compared to never smokers. Smoking intensity and pack-years of smoking were also inversely associated with LTL, and a positive association was observed with years since smoking cessation. Slower LTL attrition rates were observed in ever smokers over 8years of follow-up. CONCLUSIONS Our cross-sectional analysis supports suggestions that smoking might contribute to shortening of LTL but this relationship could not be shown longitudinally. The overall rather small effect sizes observed for smoking-related variables suggest that LTL reflects smoking-related health hazards only to a very limited extent.
Collapse
Affiliation(s)
- Aysel Müezzinler
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany; Network Aging Research (NAR), University of Heidelberg, Heidelberg, Germany
| | - Ute Mons
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany.
| | - Aida Karina Dieffenbach
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany; German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Katja Butterbach
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany
| | - Kai-Uwe Saum
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany
| | - Matthias Schick
- Genomics and Proteomics Core Facility, German Cancer Research Center, Im Neuenheimer Feld 580, 69120 Heidelberg, Germany
| | - Hermann Stammer
- Division of Genetics of Skin Carcinogenesis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Petra Boukamp
- Division of Genetics of Skin Carcinogenesis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany
| | - Bernd Holleczek
- Saarland Cancer Registry, Präsident-Baltz-Straße 5, 66119 Saarbrücken, Germany
| | - Christa Stegmaier
- Saarland Cancer Registry, Präsident-Baltz-Straße 5, 66119 Saarbrücken, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120 Heidelberg, Germany
| |
Collapse
|
31
|
Puterman E, Lin J, Krauss J, Blackburn EH, Epel ES. Determinants of telomere attrition over 1 year in healthy older women: stress and health behaviors matter. Mol Psychiatry 2015; 20:529-35. [PMID: 25070535 PMCID: PMC4310821 DOI: 10.1038/mp.2014.70] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 05/13/2014] [Accepted: 06/06/2014] [Indexed: 12/21/2022]
Abstract
Telomere length, a reliable predictor of disease pathogenesis, can be affected by genetics, chronic stress and health behaviors. Cross-sectionally, highly stressed postmenopausal women have shorter telomeres, but only if they are inactive. However, no studies have prospectively examined telomere length change over a short period, and if rate of attrition is affected by naturalistic factors such as stress and engagement in healthy behaviors, including diet, exercise, and sleep. Here we followed healthy women over 1 year to test if major stressors that occurred over the year predicted telomere shortening, and whether engaging in healthy behaviors during this period mitigates this effect. In 239 postmenopausal, non-smoking, disease-free women, accumulation of major life stressors across a 1-year period predicted telomere attrition over the same period-for every major life stressor that occurred during the year, there was a significantly greater decline in telomere length over the year of 35 bp (P<0.05). Yet, these effects were moderated by health behaviors (interaction B=0.19, P=0.04). Women who maintained relatively higher levels of health behaviors (1 s.d. above the mean) appeared to be protected when exposed to stress. This finding has implications for understanding malleability of telomere length, as well as expectations for possible intervention effects. This is the first study to identify predictors of telomere length change over the short period of a year.
Collapse
Affiliation(s)
- E Puterman
- Department of Psychiatry, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| | - J Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - J Krauss
- Division of Physical Medicine and Rehabilitation, Department of Orthopedic Surgery, Stanford University, Stanford, CA, USA
| | - E H Blackburn
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - E S Epel
- Department of Psychiatry, School of Medicine, University of California, San Francisco, San Francisco, CA, USA
| |
Collapse
|
32
|
Neighborhood characteristics and leukocyte telomere length: the Multi-Ethnic Study of Atherosclerosis. Health Place 2014; 28:167-72. [PMID: 24859373 DOI: 10.1016/j.healthplace.2014.04.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 04/01/2014] [Accepted: 04/26/2014] [Indexed: 11/23/2022]
Abstract
Telomeres are the protective caps at the ends of eukaryotic chromosomes. Telomeres get shorter each time a cell divides, and critically shortened telomeres trigger cellular senescence. Thus, telomere length is hypothesized to be a biological marker of aging. The purpose of this study was to examine the association between neighborhood characteristics and leukocyte telomere length. Using data from a subsample (n=978) of the Multi-Ethnic Study of Atherosclerosis, a population-based study of women and men aged 45-84, we found that neighborhood social environment (but not neighborhood socioeconomic disadvantage) was associated with telomere length. Respondents who lived in neighborhoods characterized by lower aesthetic quality, safety, and social cohesion had shorter telomeres than those who lived in neighborhoods with a more salutary social environment, even after adjusting for individual-level socioeconomic status and biomedical and lifestyle factors related to telomere length. Telomere length may be one biological mechanism by which neighborhood characteristics influence an individual׳s risk of disease and death.
Collapse
|
33
|
Early senescence in heterozygous ABCA1 mutation skin fibroblasts: A gene dosage effect beyond HDL deficiency? Biochem Biophys Res Commun 2014; 447:231-6. [DOI: 10.1016/j.bbrc.2014.03.090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 03/18/2014] [Indexed: 12/30/2022]
|
34
|
Rewak M, Buka S, Prescott J, De Vivo I, Loucks EB, Kawachi I, Non AL, Kubzansky LD. Race-related health disparities and biological aging: does rate of telomere shortening differ across blacks and whites? Biol Psychol 2014; 99:92-9. [PMID: 24686071 DOI: 10.1016/j.biopsycho.2014.03.007] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 03/12/2014] [Accepted: 03/20/2014] [Indexed: 12/20/2022]
Abstract
Recent work suggests that leukocyte telomere length (LTL), a marker of cellular aging, is sensitive to effects of social stress and may also provide early indication of premature aging. Using data from a birth cohort with LTL information at birth and in middle adulthood we examined a potential source of race-based health disparity by testing the hypothesis that Blacks would demonstrate a faster rate of telomere shortening than Whites. Linear regression analyses were conducted and adjusted for pack years, BMI, education and social factors, diet, exercise, marital status, and age. At birth black individuals had LTLs that were longer, on average, than their White counterparts (b=3.85, p<0.01). However, rate of shortening was greater for Blacks, who showed a larger difference in length between birth and adulthood (b=5.10, p=0.01) as compared with Whites, resulting in smaller racial differences in absolute adult LTL.
Collapse
Affiliation(s)
| | | | - Jennifer Prescott
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, United States; Program in Molecular and Genetic Epidemiology, Department of Epidemiology, Harvard School of Public Health, United States
| | - Immaculata De Vivo
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, United States; Program in Molecular and Genetic Epidemiology, Department of Epidemiology, Harvard School of Public Health, United States
| | | | | | - Amy L Non
- Department of Anthropology, Vanderbilt University, United States
| | | |
Collapse
|
35
|
Gardner M, Bann D, Wiley L, Cooper R, Hardy R, Nitsch D, Martin-Ruiz C, Shiels P, Sayer AA, Barbieri M, Bekaert S, Bischoff C, Brooks-Wilson A, Chen W, Cooper C, Christensen K, De Meyer T, Deary I, Der G, Diez Roux A, Fitzpatrick A, Hajat A, Halaschek-Wiener J, Harris S, Hunt SC, Jagger C, Jeon HS, Kaplan R, Kimura M, Lansdorp P, Li C, Maeda T, Mangino M, Nawrot TS, Nilsson P, Nordfjall K, Paolisso G, Ren F, Riabowol K, Robertson T, Roos G, Staessen JA, Spector T, Tang N, Unryn B, van der Harst P, Woo J, Xing C, Yadegarfar ME, Park JY, Young N, Kuh D, von Zglinicki T, Ben-Shlomo Y. Gender and telomere length: systematic review and meta-analysis. Exp Gerontol 2014; 51:15-27. [PMID: 24365661 PMCID: PMC4523138 DOI: 10.1016/j.exger.2013.12.004] [Citation(s) in RCA: 341] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 12/13/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND It is widely believed that females have longer telomeres than males, although results from studies have been contradictory. METHODS We carried out a systematic review and meta-analyses to test the hypothesis that in humans, females have longer telomeres than males and that this association becomes stronger with increasing age. Searches were conducted in EMBASE and MEDLINE (by November 2009) and additional datasets were obtained from study investigators. Eligible observational studies measured telomeres for both females and males of any age, had a minimum sample size of 100 and included participants not part of a diseased group. We calculated summary estimates using random-effects meta-analyses. Heterogeneity between studies was investigated using sub-group analysis and meta-regression. RESULTS Meta-analyses from 36 cohorts (36,230 participants) showed that on average females had longer telomeres than males (standardised difference in telomere length between females and males 0.090, 95% CI 0.015, 0.166; age-adjusted). There was little evidence that these associations varied by age group (p=1.00) or cell type (p=0.29). However, the size of this difference did vary by measurement methods, with only Southern blot but neither real-time PCR nor Flow-FISH showing a significant difference. This difference was not associated with random measurement error. CONCLUSIONS Telomere length is longer in females than males, although this difference was not universally found in studies that did not use Southern blot methods. Further research on explanations for the methodological differences is required.
Collapse
Affiliation(s)
- Michael Gardner
- School of Social and Community Medicine, University of Bristol, Canynge Hall, Bristol, UK
| | - David Bann
- MRC University Unit for Lifelong Health and Ageing, University College London, UK
| | - Laura Wiley
- Institute for Ageing and Health, Newcastle University, UK
| | - Rachel Cooper
- MRC University Unit for Lifelong Health and Ageing, University College London, UK
| | - Rebecca Hardy
- MRC University Unit for Lifelong Health and Ageing, University College London, UK
| | - Dorothea Nitsch
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, UK
| | | | - Paul Shiels
- Institute of Cancer Sciences, University of Glasgow, UK
| | - Avan Aihie Sayer
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, UK
| | | | | | - Claus Bischoff
- Danish Aging Research Center, University of Southern Denmark, Denmark
| | | | - Wei Chen
- Tulane Center for Cardiovascular Health, Tulane University Health Sciences, New Orleans, United States
| | - Cyrus Cooper
- Medical Research Council Lifecourse Epidemiology Unit, University of Southampton, UK
| | - Kaare Christensen
- Danish Aging Research Center, University of Southern Denmark, Denmark
| | - Tim De Meyer
- Clinical Research Center, Ghent University, Belgium
| | - Ian Deary
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, UK
| | - Geoff Der
- Medical Research Council/Chief Scientist Office Social and Public Health Sciences Unit, Glasgow, UK
| | - Ana Diez Roux
- Department of Epidemiology, Center for Integrative Approaches to Health Disparities, University of Michigan, United States
| | - Annette Fitzpatrick
- Department of Epidemiology, University of Washington, Seattle, United States
| | - Anjum Hajat
- Department of Epidemiology, Center for Integrative Approaches to Health Disparities, University of Michigan, United States
| | | | - Sarah Harris
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, UK
| | - Steven C Hunt
- Cardiovascular Genetics Division, University of Utah School of Medicine, Salt Lake City, United States
| | - Carol Jagger
- Institute for Ageing and Health, Newcastle University, UK
| | - Hyo-Sung Jeon
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University Daegu, Republic of Korea
| | - Robert Kaplan
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, New York, United States
| | - Masayuki Kimura
- The Center of Human Development and Aging, University of Medicine and Dentistry of New Jersey, United States
| | - Peter Lansdorp
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, Canada
| | - Changyong Li
- Department of Anatomy, Liaoning Medical University, Liaoning Province, People's Republic of China
| | - Toyoki Maeda
- Department of Molecular and Cellular Biology, Kyushu University, Oita, Japan
| | - Massimo Mangino
- Twin Research and Genetic Epidemiology Unit, King's College London, UK
| | - Tim S Nawrot
- Division of Hypertension and Cardiovascular Rehabilitation, Department of Cardiovascular Sciences, University of Leuven, Belgium
| | - Peter Nilsson
- Department of Clinical Sciences Medicine, University Hospital, Malmö, Sweden
| | | | - Giuseppe Paolisso
- Department of Geriatric and Metabolic Diseases, Second University of Naples, Italy
| | - Fu Ren
- Department of Anatomy, Liaoning Medical University, Liaoning Province, People's Republic of China
| | - Karl Riabowol
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Calgary, Canada
| | - Tony Robertson
- Medical Research Council/Chief Scientist Office Social and Public Health Sciences Unit, Glasgow, UK
| | - Goran Roos
- Department of Medical Biosciences, Umeå University, Sweden
| | - Jan A Staessen
- Division of Hypertension and Cardiovascular Rehabilitation, Department of Cardiovascular Sciences, University of Leuven, Belgium
| | - Tim Spector
- Twin Research and Genetic Epidemiology Unit, King's College London, UK
| | - Nelson Tang
- Department of Chemical Pathology, Faculty of Medicine, The Chinese University of Hong Kong, People's Republic of China
| | - Brad Unryn
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of Calgary, Canada
| | - Pim van der Harst
- Department of Cardiology, University Medical Center Groningen, The Netherlands
| | - Jean Woo
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, People's Republic of China
| | - Chao Xing
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, United States
| | | | - Jae Yong Park
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University Daegu, Republic of Korea
| | - Neal Young
- National Heart, Lung, and Blood Institute, Bethesda, United States
| | - Diana Kuh
- MRC University Unit for Lifelong Health and Ageing, University College London, UK
| | | | - Yoav Ben-Shlomo
- School of Social and Community Medicine, University of Bristol, Canynge Hall, Bristol, UK.
| |
Collapse
|
36
|
Huzen J, Wong LSM, van Veldhuisen DJ, Samani NJ, Zwinderman AH, Codd V, Cawthon RM, Benus GFJD, van der Horst ICC, Navis G, Bakker SJL, Gansevoort RT, de Jong PE, Hillege HL, van Gilst WH, de Boer RA, van der Harst P. Telomere length loss due to smoking and metabolic traits. J Intern Med 2014; 275:155-63. [PMID: 24118582 DOI: 10.1111/joim.12149] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Human age-dependent telomere attrition and telomere shortening are associated with several age-associated diseases and poorer overall survival. The aim of this study was to determine longitudinal leucocyte telomere length dynamics and identify factors associated with temporal changes in telomere length. DESIGN AND METHODS Leucocyte telomere length was measured by quantitative polymerase chain reaction in 8074 participants from the Prevention of Renal and Vascular End-stage Disease (PREVEND) study, an ongoing community-based prospective cohort study initiated in 1997. Follow-up data were available at two time-points up to 2007. Leucocyte telomere length was measured, on between one and three separate occasions, in a total of 16 783 DNA samples. Multilevel growth models were created to identify the factors that influence leucocyte telomere dynamics. RESULTS We observed an average attrition rate of 0.47 ± 0.16 relative telomere length units (RTLUs) per year in the study population aged 48 (range 39-60) years at baseline. Annual telomere attrition rate increased with age (P < 0.001) and was faster on average in men than in women (P for interaction 0.043). The major independent factors determining telomere attrition rate were active smoking (approximately tripled the loss of RTLU per year, P < 0.0001) and multiple traits of the metabolic syndrome (waist-hip ratio, P = 0.007; blood glucose level, P = 0.045, and HDL cholesterol level, P < 0.001). CONCLUSIONS Smoking and variables linked to the metabolic syndrome are modifiable lifestyle factors that accelerate telomere attrition in humans. The higher rate of cellular ageing may mediate the link between smoking and the metabolic syndrome to an increased risk of several age-associated diseases.
Collapse
Affiliation(s)
- J Huzen
- University Medical Center Groningen, University of Groningen, Department of Cardiology, Groningen, the Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Salpea KD, Maubaret CG, Kathagen A, Ken-Dror G, Gilroy DW, Humphries SE. The effect of pro-inflammatory conditioning and/or high glucose on telomere shortening of aging fibroblasts. PLoS One 2013; 8:e73756. [PMID: 24086293 PMCID: PMC3781104 DOI: 10.1371/journal.pone.0073756] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Accepted: 07/30/2013] [Indexed: 01/29/2023] Open
Abstract
UNLABELLED Cardiovascular disease and diabetes have been linked to shorter telomeres, but it is not yet clear which risk factors contribute to shorter telomeres in patients. Our aim was to examine whether pro-inflammatory conditioning, in combination or not with high glucose, result in a higher rate of telomere shortening during in vitro cellular ageing. Human fibroblasts from four donors were cultured for 90 days in: 1) medium lacking ascorbic acid only, 2) 10 mM buthionine sulphoximine (BSO) (pro-oxidant), 3) 25 mM D-glucose, 4) 1 ng/ml IL1B and 5) 25 mM D-glucose+1 ng/ml IL1B. Telomere length was measured with qPCR and intracellular reactive oxygen species (ROS) content and cell death with flow cytometry. Cultures treated with high glucose and BSO displayed a significantly lower growth rate, and cultures treated with IL1B showed a trend towards a higher growth rate, compared to the control [Glucose:0.14 PD/day, p<0.001, BSO: 0.11 PD/day, p = 0.006 and IL1B: 0.19 PD/day, p = 0.093 vs. CONTROL 0.16 PD/day]. Telomere shortening with time was significantly accelerated in cultures treated with IL1B compared to the control [IL1B:-0.8%/day (95%CI:-1.1, -0.5) vs. CONTROL -0.6%/day (95%CI:-0.8, -0.3), p = 0.012]. The hastening of telomere shortening by IL1B was only in part attenuated after adjustment for the number of cell divisions [IL1B:-4.1%/PD (95%CI:-5.7, -2.4) vs. CONTROL -2.5%/PD (95%CI:-4.4, -0.7), p = 0.067]. The intracellular ROS content displayed 69% increase (p = 0.033) in BSO compared to the control. In aging fibroblasts, pro-inflammatory conditioning aggravates the shortening of telomeres, an effect which was only in part driven by increased cell turnover. High glucose alone did not result in greater production of ROS or telomere shortening.
Collapse
Affiliation(s)
- Klelia D. Salpea
- Centre for Cardiovascular Genetics, Division of Medicine, University College London, London, United Kingdom
- * E-mail: (KDS); (CGM)
| | - Cecilia G. Maubaret
- Centre for Cardiovascular Genetics, Division of Medicine, University College London, London, United Kingdom
- * E-mail: (KDS); (CGM)
| | - Annegret Kathagen
- Centre for Cardiovascular Genetics, Division of Medicine, University College London, London, United Kingdom
| | - Gie Ken-Dror
- Centre for Cardiovascular Genetics, Division of Medicine, University College London, London, United Kingdom
| | - Derek W. Gilroy
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, University College London, London, United Kingdom
| | - Steve E. Humphries
- Centre for Cardiovascular Genetics, Division of Medicine, University College London, London, United Kingdom
| |
Collapse
|
38
|
Jiang X, Dong M, Cheng J, Huang S, He Y, Ma K, Tang B, Guo Y. Decreased leukocyte telomere length (LTL) is associated with stroke but unlikely to be causative. PLoS One 2013; 8:e68254. [PMID: 23861874 PMCID: PMC3702505 DOI: 10.1371/journal.pone.0068254] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 05/27/2013] [Indexed: 11/19/2022] Open
Abstract
Aims Interindividual variability in telomere length is highly heritable. Leukocyte telomere length (LTL) shortening has been shown to be associated with the process of atherosclerosis. But whether the inheritance of LTL is related to stroke is still unclear. The aim of this study was to test if telomere shortening was associated with stroke and whether this association was mainly due to inheritance or acquired cardiovascular risk factors. Methods Our study was focused on stroke in patients and their siblings. 450 subjects were recruited into this study: 150 patients with ischemic stroke as case group, 150 siblings of patients free of stroke (sibling group) and 150 healthy people as normal control. LTL was measured by real-time Polymerase Chain Reactions. The association between LTL and the cardiovascular risk factors was also determined. Results A significant decrease of LTL was found in case group when comparing with sibling (0.92±0.77 vs 1.68±1.24, p<0.001) and normal groups (0.92±0.77 vs 1.95±1.07, p<0.001), but no significant difference was found between sibling group and healthy control (p = 0.330). Shorter telomere length was independently associated with hypertension (p = 0.029, OR = 2.189, 95%CI:1.084–4.421), recent social pressure (p = 0.001, OR = 3.121, 95%CI:1.597–6.101), age (p = 0.004, OR = 1.055, 95%CI:1.017–1.093), HDL (p = 0.022, OR = 0.227, 95%CI:0.064–0.810) and diabetes (p = 0.018, OR = 3.174, 95%CI:1.221–8.252). Additionally, shortened length of telomere (p = 0.017, OR = 3.996, 95%CI:1.283–12.774) was an independent risk biomarker for stroke among case and sibling groups. Conclusion The present study has demonstrated that decreased LTL might be associated with ischemic stroke but unlikely to be causative.
Collapse
Affiliation(s)
- Xin Jiang
- Department of Geriatrics, the Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Ming Dong
- Medical College, Shenzhen University, Shenzhen, Guangdong, China
| | - Jinquan Cheng
- Shenzhen Centre for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Sichun Huang
- Department of Neurology, the Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Yitao He
- Department of Neurology, the Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Kefu Ma
- Department of Neurology, the Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Bingshan Tang
- Department of Neurology, the Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, China
| | - Yi Guo
- Department of Neurology, the Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, China
- * E-mail:
| |
Collapse
|
39
|
The association of relative telomere length with symptomatic peripheral arterial disease: results from the CAVASIC study. Atherosclerosis 2013; 229:469-74. [PMID: 23880207 DOI: 10.1016/j.atherosclerosis.2013.05.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/29/2013] [Accepted: 05/29/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND OBJECTIVES Short telomere length has been described to be associated with biological aging including atherosclerosis phenotypes. However, information in patients with symptomatic peripheral arterial disease (PAD) is sparse. We therefore aimed to investigate whether inter-individual differences in relative telomere length (RTL) are associated with symptomatic PAD. DESIGN We measured RTL by a quantitative PCR method in the CAVASIC Study, a cohort of 241 male Caucasian patients diagnosed with intermittent claudication and 249 age- and diabetes-matched controls. RESULTS We observed significantly shorter mean RTL in patients than in controls (1.24 ± 0.19 vs. 1.32 ± 0.23, p < 0.001). Each shortening of RTL by one standard deviation significantly increased the odds for PAD by 44%: age-adjusted OR = 1.44 (95%CI 1.19-1.75, p < 0.001). This association remained significant after additional adjustment for log-C-reactive protein, glomerular filtration rate, HDL cholesterol, current smoking and log N-terminal pro-B-type natriuretic peptide (NT-proBNP). Excluding patients with prevalent cardiovascular disease revealed very similar results. When we compared the model fit of the various adjustment models including cardiac risk factors and/or NT-proBNP the addition of RTL significantly improved discrimination between patients and controls. CONCLUSION This study in a male cohort of patients with intermittent claudication and age- and diabetes-matched controls indicates a significant association of shorter relative telomere length with PAD. Our results reinforce RTL as a marker for PAD that reflects the influence of genetic and environmental risk factors. Moreover, the association remains significant after excluding patients and controls free from prevalent cardiovascular disease.
Collapse
|
40
|
Abstract
Abstract In humans and other multicellular organisms that have an extended lifespan, the leading causes of death are atherosclerotic cardiovascular disease and cancer. Experimental and clinical evidence indicates that these age-related disorders are linked through dysregulation of telomere homeostasis. Telomeres are DNA protein structures located at the terminal end of chromosomes and shorten with each cycle of cell replication, thereby reflecting the biological age of an organism. Critically shortened telomeres provoke cellular senescence and apoptosis, impairing the function and viability of a cell. The endothelial cells within atherosclerotic plaques have been shown to display features of cellular senescence. Studies have consistently demonstrated an association between shortened telomere length and coronary artery disease (CAD). Several of the CAD risk factors and particularly type 2 diabetes are linked to telomere shortening and cellular senescence. Our interest in telomere biology was prompted by the high incidence of premature CAD and diabetes in a subset of our population, and the hypothesis that these conditions are premature-ageing syndromes. The assessment of telomere length may serve as a better predictor of cardiovascular risk and mortality than currently available risk markers, and anti-senescence therapy targeting the telomere complex is emerging as a new strategy in the treatment of atherosclerosis. We review the evidence linking telomere biology to atherosclerosis and discuss methods to preserve telomere length.
Collapse
Affiliation(s)
- S Khan
- Department of Cardiology, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.
| | | | | |
Collapse
|
41
|
Dei Cas A, Spigoni V, Franzini L, Preti M, Ardigò D, Derlindati E, Metra M, Monti LD, Dell'Era P, Gnudi L, Zavaroni I. Lower endothelial progenitor cell number, family history of cardiovascular disease and reduced HDL-cholesterol levels are associated with shorter leukocyte telomere length in healthy young adults. Nutr Metab Cardiovasc Dis 2013; 23:272-278. [PMID: 21824757 DOI: 10.1016/j.numecd.2011.04.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 04/11/2011] [Accepted: 04/12/2011] [Indexed: 10/17/2022]
Abstract
BACKGROUND AND AIMS Leukocyte telomere length (LTL) is a novel marker of cardiovascular (CV) risk. The aim of the study was to investigate the major determinants of LTL in a healthy young population at very low CV risk. METHODS AND RESULTS LTL was determined in 82 healthy subjects (49M/33F; age37 ± 9yrs), normotensive and not taking any medication with different family history of cardiovascular disease (CVD) (24yes/58no). Fasting blood samples were drawn in all subjects for the determination of lipid profile, high sensitive C-reactive protein, uric acid, Plasminogen Activator Inhibitor-1 (PAI-1), LTL and Endothelial Progenitor Cell (EPC) number. LTL was assessed with a specific real-time PCR reaction in leukocyte DNA samples. LTL resulted inversely correlated with family history of CVD (t = 2.70; p = 0.009), age (r = -0.238; p = 0.032), waist circumference (r = -0.256; p = 0.02), triglycerides (r = -0.218; p = 0.049), PAI-1 (r = -0.288; p = 0.009) and directly correlated with HDL-cholesterol (r = 0.316; p = 0.004) and EPC number (r = 0.358; p = 0.002). At a multivariate analysis, family history of CVD (p = 0.013), EPC count (p = 0.003), and HDL-cholesterol (p = 0.017) were independently associated with LTL (r = 0.62). CONCLUSION LTL is independently associated to CV risk factors also in healthy young adults.
Collapse
Affiliation(s)
- A Dei Cas
- Department of Internal Medicine and Biomedical Sciences, University of Parma, Via Gramsci 14, 43100-Parma, Italy.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Müezzinler A, Zaineddin AK, Brenner H. A systematic review of leukocyte telomere length and age in adults. Ageing Res Rev 2013; 12:509-19. [PMID: 23333817 DOI: 10.1016/j.arr.2013.01.003] [Citation(s) in RCA: 335] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Revised: 12/10/2012] [Accepted: 01/07/2013] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To provide a systematic review of the relationship between age and leukocyte telomere length (LTL) in adults. METHODS Relevant studies were identified by a systematic search of Medline, EMBASE and ISI Web of Knowledge databases. Key data, such as age and LTL, were extracted from the studies along with correlation coefficients and yearly attrition rates where available. Obtained data were used to calculate weighted means and correlation coefficients. RESULTS Overall, 124 cross-sectional studies and 5 longitudinal studies were identified. A statistically significant inverse correlation between mean age and mean LTL across cross-sectional studies was observed for both absolute (r=-0.338, p<0.0001) and relative LTL (r=-0.295, p=0.0088). From mean LTL and ages, a yearly telomere loss of 24.7 base pairs (BP)/year was estimated by weighted linear regression. Weighted means of within study correlation of age and TL and yearly telomere loss rate estimates from cross-sectional studies were also in a similar order of magnitude (-0.380 and 21.91 BP/year). The few longitudinal studies reported somewhat higher mean telomere loss rates (between 32.2 and 45.5 BP/year). CONCLUSION While a decrease of LTL with age is out of question, data on variation of the decrease according to sex, age and other potential determinants especially from longitudinal data are still sparse.
Collapse
|
43
|
Sanders JL, Newman AB. Telomere length in epidemiology: a biomarker of aging, age-related disease, both, or neither? Epidemiol Rev 2013; 35:112-31. [PMID: 23302541 DOI: 10.1093/epirev/mxs008] [Citation(s) in RCA: 384] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2012] [Indexed: 01/03/2023] Open
Abstract
Telomeres are nucleoprotein caps flanking DNA. They are shortened by cell division and oxidative stress and are lengthened by the enzyme telomerase and DNA exchange during mitosis. Short telomeres induce cellular senescence. As an indicator of oxidative stress and senescence (2 processes thought to be fundamental to aging), telomere length is hypothesized to be a biomarker of aging. This hypothesis has been tested for more than a decade with epidemiologic study methods. In cross-sectional studies, researchers have investigated whether leukocyte telomere length (LTL) is associated with demographic, behavioral, and health variables. In prospective studies, baseline LTL has been used to predict mortality and occasionally other adverse health outcomes. Conflicting data have generated heated debate about the value of LTL as a biomarker of overall aging. In this review, we address the epidemiologic data on LTL and demonstrate that shorter LTL is associated with older age, male gender, Caucasian race, and possibly atherosclerosis; associations with other markers of health are equivocal. We discuss the reasons for discrepancy across studies, including a detailed review of methods for measuring telomere length as they apply to epidemiology. Finally, we conclude with questions about LTL as a biomarker of aging and how epidemiology can be used to answer these questions.
Collapse
|
44
|
Cai Z, Yan LJ, Ratka A. Telomere Shortening and Alzheimer’s Disease. Neuromolecular Med 2012; 15:25-48. [DOI: 10.1007/s12017-012-8207-9] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 11/02/2012] [Indexed: 10/27/2022]
|
45
|
Grahame TJ, Schlesinger RB. Oxidative stress-induced telomeric erosion as a mechanism underlying airborne particulate matter-related cardiovascular disease. Part Fibre Toxicol 2012; 9:21. [PMID: 22713210 PMCID: PMC3464961 DOI: 10.1186/1743-8977-9-21] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 05/29/2012] [Indexed: 12/11/2022] Open
Abstract
Particulate matter (PM) pollution is responsible for hundreds of thousands of deaths worldwide, the majority due to cardiovascular disease (CVD). While many potential pathophysiological mechanisms have been proposed, there is not yet a consensus as to which are most important in causing pollution-related morbidity/mortality. Nor is there consensus regarding which specific types of PM are most likely to affect public health in this regard. One toxicological mechanism linking exposure to airborne PM with CVD outcomes is oxidative stress, a contributor to the development of CVD risk factors including atherosclerosis. Recent work suggests that accelerated shortening of telomeres and, thus, early senescence of cells may be an important pathway by which oxidative stress may accelerate biological aging and the resultant development of age-related morbidity. This pathway may explain a significant proportion of PM-related adverse health outcomes, since shortened telomeres accelerate the progression of many diseases. There is limited but consistent evidence that vehicular emissions produce oxidative stress in humans. Given that oxidative stress is associated with accelerated erosion of telomeres, and that shortened telomeres are linked with acceleration of biological ageing and greater incidence of various age-related pathology, including CVD, it is hypothesized that associations noted between certain pollution types and sources and oxidative stress may reflect a mechanism by which these pollutants result in CVD-related morbidity and mortality, namely accelerated aging via enhanced erosion of telomeres. This paper reviews the literature providing links among oxidative stress, accelerated erosion of telomeres, CVD, and specific sources and types of air pollutants. If certain PM species/sources might be responsible for adverse health outcomes via the proposed mechanism, perhaps the pathway to reducing mortality/morbidity from PM would become clearer. Not only would pollution reduction imperatives be more focused, but interventions which could reduce oxidative stress would become all the more important.
Collapse
Affiliation(s)
- Thomas J Grahame
- United States Department of Energy, 1000 Independence Avenue, SW Washington, DC 20585, USA.
| | | |
Collapse
|
46
|
Galetta F, Carpi A, Abraham N, Guidotti E, Russo MA, Camici M, Antonelli A, Franzoni F, Santoro G. Age related cardiovascular dysfunction and effects of physical activity. Front Biosci (Elite Ed) 2012; 4:2617-37. [PMID: 22652665 DOI: 10.2741/e570] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The aim of the present article is to review the principal pathogenetic pathways of age-related cardiovascular changes and the positive effects of physical activity on these changes as well as on related cardiovascular dysfunction. The ageing mechanisms reviewed have been grouped into reduced tolerance of oxidative stress, loss of cardiac stem cells, cardiovascular remodeling and impairment of neurovegetative control. New pathogenetic conditions and their tests are described (sirtuines, telomere length, heart rate variability). Age related cardiovascular changes predispose the individual to arterial hypertension, heart failure and arrythmia. A broad spectrum of tests are available to indentify and monitor the emerging cardiovascular dysfunction. Physical activity influences all age related cardiovascular mechanisms, improves cardiovascular function and even, at moderate intensity can reduce mortality and heart attack risk. It is likely that the translation of laboratory studies to humans will improve understanding and stimulate the use of physical activity to benefit cardiovascular patients.
Collapse
Affiliation(s)
- Fabio Galetta
- Department of Internal Medicine, University of Pisa, Pisa, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Affiliation(s)
- Dareen Khalaf
- Keck School of Medicine at University of Southern California Los Angeles California
| | - Louise Ye
- Keck School of Medicine at University of Southern California Los Angeles California
| | - Asit Baran Shil
- Keck School of Medicine at University of Southern California Los Angeles California
| |
Collapse
|
48
|
Surtees PG, Wainwright NWJ, Pooley KA, Luben RN, Khaw KT, Easton DF, Dunning AM. Life Stress, Emotional Health, and Mean Telomere Length in the European Prospective Investigation into Cancer (EPIC)-Norfolk Population Study. J Gerontol A Biol Sci Med Sci 2011; 66:1152-62. [DOI: 10.1093/gerona/glr112] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
|
49
|
Buxton JL, Walters RG, Visvikis-Siest S, Meyre D, Froguel P, Blakemore AIF. Childhood obesity is associated with shorter leukocyte telomere length. J Clin Endocrinol Metab 2011; 96:1500-5. [PMID: 21349907 PMCID: PMC3137462 DOI: 10.1210/jc.2010-2924] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Obesity in adults is associated with shorter mean leukocyte telomere length (LTL), a marker of biological age that is also associated with age-related conditions including cardiovascular disease and type 2 diabetes. However, studies of childhood obesity and LTL have proved inconclusive. OBJECTIVE The objective of the study was to clarify the relationship between telomere length and childhood obesity by measuring the average LTL in a large case-control cohort. PARTICIPANTS AND METHODS LTL was measured in 793 French children aged 2-17 yr (471 with early onset obesity and 322 nonobese controls) using multiplex quantitative real-time PCR. The average LTL in the two groups was compared, and the relationships between telomere length and selected anthropometric and biochemical measurements were examined. RESULTS Obese children had a mean LTL that was 23.9% shorter than that of nonobese children (P < 0.0001). Telomere length was inversely associated with age (R = -0.17, P = 0.002 in controls; R = -0.15, P = 0.001 in cases), log weight (R= -0.13, P = 0.017 in controls; R = -0.16, P = 0.0004 in cases), and height (R = -0.15, P = 0.008 in controls; R = -0.17, P = 0.0002 in cases). The mean LTL of girls and boys was not significantly different in either the cases or controls or in the group overall. CONCLUSION Obese girls and boys have significantly shorter leukocyte telomeres than their nonobese counterparts, a finding that highlights a potentially deleterious impact of early onset obesity on future health.
Collapse
Affiliation(s)
- Jessica L Buxton
- Department of Genomics of Common Disease, School of Public Health, Imperial College London, Burlington-Danes Building, Hammersmith Hospital, Du Cane Road, London W12 0NN, United Kingdom.
| | | | | | | | | | | |
Collapse
|
50
|
Maeda T, Oyama JI, Sasaki M, Arima T, Makino N. The correlation between the clinical laboratory data and the telomere length in peripheral blood leukocytes of Japanese female patients with hypertension. J Nutr Health Aging 2011; 15:240-4. [PMID: 21369674 DOI: 10.1007/s12603-010-0137-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVE This study investigated the correlation between the chronological age, telomere length in peripheral blood leukocytes and blood laboratory data of female patients with mild hypertension to identify laboratory data that reflect the biological aging of individuals. DESIGN Cross-sectional population-based study. SETTING Outpatient clinic of the Department of Cardiovascular, Respiratory, and Geriatric Medicine Kyushu University Hospital at Beppu in Japan. PARTICIPANTS Outpatients with mild hypertension treated with a low dose of amlodipine. MEASUREMENTS The laboratory data of female patients were collected and the telomere length parameters in their peripheral blood leukocytes were determined by Southern blotting. Any correlations between the laboratory data and the telomere length parameters were assessed. RESULTS The patients showed a positive correlation between the telomere length and the high density lipoprotein, albumin, creatinine, hemoglobin levels, red blood cell counts, and a negative correlation with the globulin level. The extent of subtelomeric methylation of long telomeres tended to correlate negatively with the telomeric attrition. Only the creatinine level correlated with subtelomeric methylation, but not with telomeric length. CONCLUSION HDL and the albumin/globulin ratio were potential indicators for individual somatic genomic aging. Creatinine may therefore be a useful indicator for a predisposition for telomeric attrition.
Collapse
Affiliation(s)
- T Maeda
- The Division of Molecular and Clinical Gerontology, Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Oita, 874-0838, Japan.
| | | | | | | | | |
Collapse
|