1
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Guo Q, Zhang P, Ying W, Wang Y, Zhu J, Li G, Wang H, Wang X, Lei C, Zhou W, Sun J, Wu B. Intron retention by a novel intronic mutation in DKC1 gene caused recurrent still birth and early death in a Chinese family. Mol Genet Genomic Med 2022; 10:e1934. [PMID: 35384376 PMCID: PMC9184655 DOI: 10.1002/mgg3.1934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 02/09/2022] [Accepted: 03/14/2022] [Indexed: 11/06/2022] Open
Abstract
Background DKC1, the dyskerin encoding gene, functions in telomerase activity and telomere maintenance. DKC1 mutations cause a multisystem disease, dyskeratosis congenita (DC), which is associated with immunodeficiency and bone marrow failure. Methods In this research, we reported a novel intronic mutation of DKC1 causing dyskerin functional loss in a Chinese family. Whole exome sequence (WES) of the proband and validation by sanger sequencing help us identify a pathogenic DKC1 mutation. Minigene splicing assays were performed to evaluate functional change of DKC1. Results A pathogenic DKC1 intronic mutation(c.84 + 7A > G) was identified in the proband, which was inherited from heterozygous mother and not reported before. We detected the novel transcript with a 7 bp intron retention through minigene splicing assay. The newly spliced transcript is so short that would be degraded by nonsense‐mediated mRNA decay in vitro and we infer that the novel DKC1 mutation would influences normal physiological function of dyskerin. Conclusions Our study identified a novel intronic mutation, which expands the spectrum of pathogenic DKC1 gene mutations and can be used in molecular diagnosis. The mutant allele was transmitted to the next generation with high frequency in the family and causes still birth or early death.
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Affiliation(s)
- Qiufang Guo
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China.,Berry Genomics Co., Beijing, China
| | - Ping Zhang
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Wenjing Ying
- Department of Allergy and Clinical Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Yaqiong Wang
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Jitao Zhu
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Gang Li
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Huijun Wang
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Xiaochuan Wang
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Caixia Lei
- Prenatal Diagnosis Center, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Wenhao Zhou
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Jinqiao Sun
- Department of Allergy and Clinical Immunology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
| | - Bingbing Wu
- Center of Molecular Medicine, Pediatrics Research Institute, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, China
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Koller A, Brandl C, Lamina C, Zimmermann ME, Summerer M, Stark KJ, Würzner R, Heid IM, Kronenberg F. Relative Telomere Length Is Associated With Age-Related Macular Degeneration in Women. Invest Ophthalmol Vis Sci 2022; 63:30. [PMID: 35612837 PMCID: PMC9150829 DOI: 10.1167/iovs.63.5.30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Purpose Relative telomere length (RTL) is a biomarker for physiological aging. Premature shortening of telomeres is associated with oxidative stress, which is one possible pathway that might contribute to age-related macular degeneration (AMD). We therefore aimed to investigate the association between RTL and AMD in a well-characterized group of elderly individuals. Methods We measured RTL in participants of the AugUR study using a multiplex quantitative PCR-based assay determining the ratio between the telomere product and a single-copy gene product (T/S ratio). AMD was assessed by manual grading of color fundus images using the Three Continent AMD Consortium Severity Scale. Results Among the 2262 individuals 70 to 95 years old (627 with AMD and 1635 without AMD), RTL was significantly shorter in individuals with AMD compared to AMD-free participants. In age- and sex-adjusted logistic regression analyses, we observed an 8% higher odds for AMD per 0.1 unit shorter RTL (odds ratio [OR] = 1.08; 95% confidence interval [CI], 1.02–1.14; P = 0.005). The estimates remained stable when adjusted for smoking, high-density lipoprotein cholesterol, cardiovascular disease, diabetes, and hypertension. Interestingly, this association was only present in women (OR = 1.14; 95% CI, 1.06–1.23; P < 0.001), but not in men (OR = 1.01; 95% CI, 0.93–1.10; P = 0.76). A significant sex-by-RTL interaction on AMD was detected (P = 0.043). Conclusions Our results show an association of RTL with AMD that was restricted to women. This is in line with altered reactive oxygen species levels and higher telomerase activity in women and provides an indication for a sex-differential pathway for oxidative stress and AMD.
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Affiliation(s)
- Adriana Koller
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Caroline Brandl
- Department of Genetic Epidemiology, University of Regensburg, Regensburg, Germany.,Department of Ophthalmology, University Hospital Regensburg, Regensburg, Germany
| | - Claudia Lamina
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Martina E Zimmermann
- Department of Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Monika Summerer
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Klaus J Stark
- Department of Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Reinhard Würzner
- Institute of Hygiene and Medical Microbiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Iris M Heid
- Department of Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Florian Kronenberg
- Institute of Genetic Epidemiology, Medical University of Innsbruck, Innsbruck, Austria
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3
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Fazzini F, Lamina C, Raschenberger J, Schultheiss UT, Kotsis F, Schönherr S, Weissensteiner H, Forer L, Steinbrenner I, Meiselbach H, Bärthlein B, Wanner C, Eckardt KU, Köttgen A, Kronenberg F. Results from the German Chronic Kidney Disease (GCKD) study support association of relative telomere length with mortality in a large cohort of patients with moderate chronic kidney disease. Kidney Int 2020; 98:488-497. [PMID: 32641227 DOI: 10.1016/j.kint.2020.02.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/12/2020] [Accepted: 02/20/2020] [Indexed: 02/08/2023]
Abstract
Telomere length is known to be inversely associated with aging and has been proposed as a marker for aging-related diseases. Telomere attrition can be accelerated by oxidative stress and inflammation, both commonly present in patients with chronic kidney disease. Here, we investigated whether relative telomere length is associated with mortality in a large cohort of patients with chronic kidney disease stage G3 and A1-3 or G1-2 with overt proteinuria (A3) at enrollment. Relative telomere length was quantified in peripheral blood by a quantitative PCR method in 4,955 patients from the GCKD study, an ongoing prospective observational cohort. Complete four-year follow-up was available from 4,926 patients in whom we recorded 354 deaths. Relative telomere length was a strong and independent predictor of all-cause mortality. Each decrease of 0.1 relative telomere length unit was highly associated with a 14% increased risk of death (hazard ratio1.14 [95% confidence interval 1.06-1.22]) in a model adjusted for age, sex, baseline eGFR, urine albumin/creatinine ratio, diabetes mellitus, prevalent cardiovascular disease, LDL-cholesterol, HDL-cholesterol, smoking, body mass index, systolic and diastolic blood pressure, C-reactive protein and serum albumin. This translated to a 75% higher risk for those in the lowest compared to the highest quartile of relative telomere length. The association was mainly driven by 117 cardiovascular deaths (1.20 [1.05-1.35]) as well as 67 deaths due to infections (1.27 [1.07-1.50]). Thus, our findings support an association of shorter telomere length with all-cause mortality, cardiovascular mortality and death due to infections in patients with moderate chronic kidney disease.
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Affiliation(s)
- Federica Fazzini
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Claudia Lamina
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Julia Raschenberger
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Ulla T Schultheiss
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany; Renal Division, Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Fruzsina Kotsis
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany; Renal Division, Department of Medicine IV, Medical Center-University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Sebastian Schönherr
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Hansi Weissensteiner
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Lukas Forer
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Inga Steinbrenner
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Heike Meiselbach
- Department of Nephrology and Hypertension, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Barbara Bärthlein
- Medical Centre for Information and Communication Technology (MIK), University Hospital Erlangen, Erlangen, Germany
| | - Christoph Wanner
- Division of Nephrology, Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Kai-Uwe Eckardt
- Department of Nephrology and Hypertension, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Erlangen, Germany; Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Köttgen
- Institute of Genetic Epidemiology, Faculty of Medicine and Medical Center, University of Freiburg, Freiburg, Germany
| | - Florian Kronenberg
- Institute of Genetic Epidemiology, Department of Genetics and Pharmacology, Medical University of Innsbruck, Innsbruck, Austria.
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4
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Sanchez M, Hoang S, Kannengiesser C, Potier L, Hadjadj S, Marre M, Roussel R, Velho G, Mohammedi K. Leukocyte Telomere Length, DNA Oxidation, and Risk of Lower-Extremity Amputation in Patients With Long-standing Type 1 Diabetes. Diabetes Care 2020; 43:828-834. [PMID: 31988064 DOI: 10.2337/dc19-0973] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 01/01/2020] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Telomere shortening and DNA oxidation are associated with premature vascular aging, which may be involved in lower-extremity amputation (LEA). We sought to investigate whether leukocyte telomere length (LTL) and plasma 8-hydroxy-2'-deoxyguanosine (8-OHdG), a biomarker of DNA oxidation, were associated with LEA in subjects with type 1 diabetes at high vascular risk. RESEARCH DESIGN AND METHODS LTL (quantitative PCR) and plasma 8-OHdG concentrations (immunoassay method) were assessed at baseline in the GENEDIAB (Génétique de la Néphropathie Diabétique) type 1 diabetes cohort. Logistic and Cox proportional hazards regression models were fitted to estimate odds ratio (OR) (at baseline) and hazard ratio (HR) (during follow-up), with related 95% CI, by increasing biomarker tertiles (T1, T2, T3). RESULTS Among 478 participants (56% male, mean ± SD age 45 ± 12 years and diabetes duration 29 ± 10 years), 84 patients had LEA at baseline. Baseline history of LEA was associated with shorter LTL (OR for T2 vs. T1 0.62 [95% CI 0.32-1.22] and for T3 vs. T1 0.41 [0.20-0.84]) but not with plasma 8-OHdG (1.16 [0.56-2.39] and 1.24 [0.61-2.55], respectively). New cases of LEA occurred in 34 (12.3%) participants during the 10-year follow-up. LTL were shorter (HR T2 vs. T1 0.25 [95% CI 0.08-0.67] and T3 vs. T1 0.29 [0.10-0.77]) and plasma 8-OHdG higher (2.20 [0.76-7.35] and 3.11 [1.07-10.32]) in participants who developed LEA during follow-up compared with others. No significant interaction was observed between biomarkers on their association with LEA. CONCLUSIONS We report the first independent association between LTL shortening and excess risk of LEA in type 1 diabetes. High plasma 8-OHdG was also associated with incident LEA but partly dependent on cofounding variables.
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Affiliation(s)
- Manuel Sanchez
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France .,UFR de Médecine, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Department of Geriatric Medicine, Assistance Publique - Hôpitaux de Paris, Bichat Hospital, Paris, France
| | - Sophie Hoang
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France
| | - Caroline Kannengiesser
- UFR de Médecine, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Department of Genetics, Assistance Publique - Hôpitaux de Paris, Bichat Hospital, DHU FIRE, Paris, France
| | - Louis Potier
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France.,UFR de Médecine, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Department of Diabetology, Endocrinology and Nutrition, Assistance Publique - Hôpitaux de Paris, Bichat Hospital, DHU FIRE, Paris, France
| | - Samy Hadjadj
- L'institut du thorax, INSERM, CNRS, UNIV Nantes, CHU Nantes, Nantes, France
| | - Michel Marre
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France.,UFR de Médecine, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Department of Diabetology, Endocrinology and Nutrition, Assistance Publique - Hôpitaux de Paris, Bichat Hospital, DHU FIRE, Paris, France
| | - Ronan Roussel
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France.,UFR de Médecine, Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Department of Diabetology, Endocrinology and Nutrition, Assistance Publique - Hôpitaux de Paris, Bichat Hospital, DHU FIRE, Paris, France
| | - Gilberto Velho
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France
| | - Kamel Mohammedi
- INSERM, UMRS 1138, Centre de Recherche des Cordeliers, Paris, France.,Department of Endocrinology, Diabetes and Nutrition, Hôpital Haut-Lévêque, Pessac, France.,UFR de médecine, Université de Bordeaux, Bordeaux, France
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5
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Coexistence of obstructive sleep apnea and telomerase activity, concentration of selected adipose tissue hormones and vascular endothelial function in patients with arterial hypertension. Respir Med 2019; 153:20-25. [PMID: 31136928 DOI: 10.1016/j.rmed.2019.05.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/12/2019] [Accepted: 05/16/2019] [Indexed: 01/21/2023]
Abstract
AIM The aim of the present study was to determine the effect of obstructive sleep apnea (OSA) with hypertension on telomerase activity, visfatin and adipsine concentration in the blood and vascular endothelial function assessed by ultrasound measured flow-mediated dilatation of the brachial artery (FMD). MATERIAL AND METHODS The study involved a group of 106 people (average age: 54.79 years). The determination of telomerase activity and blood visfatin and adipsine concentrations, brachial artery ultrasound examination with endothelium-dependent dilatation evaluation (FMD) and polysomnography were carried out. RESULTS Patients with hypertension without OSA were characterized by significantly greater FMD in comparison to patients with arterial hypertension and OSA (8.13 ± 5.12 %vs. 6.82 ± 5.36%; p < 0.05). Negative linear relationship between apnea-hypopnea index (AHI) and FMD (r = -0.22, p < 0.05) has been demonstrated. Negative linear relationship between adipsine concentration in the blood and length of REM (Rapid Eye Movement) sleep (r = -0.21, p < 0.05) was found. Positive linear relationship between the concentration of visfatin in the blood and the length of REM sleep (r = 0.22, p < 0.05) was also observed. Higher body mass index, higher total cholesterol, triglyceride and glucose levels have been shown to be independent predictors of higher AHI values, while greater telomerase activity, greater FMD and use of angiotensin converting enzyme inhibitors are independent predicators for lower AHI values. CONCLUSION Higher values of AHI index in polysomnography in hypertensive patients can be related to lower telomerase activity in the blood and impaired function of vascular endothelial function assessed using ultrasound.
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6
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Abstract
Telomere length measurement is increasingly recognized as a clinical gauge for age-related disease risk. There are several methods for studying blood telomere length (BTL) as a clinical biomarker. The first is an observational study approach, which directly measures telomere lengths using either cross-sectional or longitudinal patient cohorts and compares them to a population of age- and sex-matched individuals. These direct traceable measurements can be considered reflective of an individual's current health or disease state. Escalating interest in personalized medicine, access to high-throughput genotyping and resulting acquisition of large volumes of genetic data corroborates the second method, Mendelian randomization (MR). MR employs telomere length-associated genetic variants to indicate predisposition to disease risk based on the genomic composition of the individual. When assessed from cells in the bloodstream, telomeres can show variation from their genetically predisposed lengths due to environmental-induced changes. These alterations in telomere length act as an indicator of cellular health, which, in turn, can provide disease risk status. Overall, BTL measurement is a dynamic marker of biological health and well-being that together with genetically defined telomere lengths can provide insights into improved healthcare for the individual.
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7
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Genetic Determinants of Telomere Length in African American Youth. Sci Rep 2018; 8:13265. [PMID: 30185882 PMCID: PMC6125592 DOI: 10.1038/s41598-018-31238-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022] Open
Abstract
Telomere length (TL) is associated with numerous disease states and is affected by genetic and environmental factors. However, TL has been mostly studied in adult populations of European or Asian ancestry. These studies have identified 34 TL-associated genetic variants recently used as genetic proxies for TL. The generalizability of these associations to pediatric populations and racially diverse populations, specifically of African ancestry, remains unclear. Furthermore, six novel variants associated with TL in a population of European children have been identified but not validated. We measured TL from whole blood samples of 492 healthy African American youth (children and adolescents between 8 and 20 years old) and performed the first genome-wide association study of TL in this population. We were unable to replicate neither the 34 reported genetic associations found in adults nor the six genetic associations found in European children. However, we discovered a novel genome-wide significant association between TL and rs1483898 on chromosome 14. Our results underscore the importance of examining genetic associations with TL in diverse pediatric populations such as African Americans.
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8
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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.
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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
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Wanat JJ, Logsdon GA, Driskill JH, Deng Z, Lieberman PM, Johnson FB. TERRA and the histone methyltransferase Dot1 cooperate to regulate senescence in budding yeast. PLoS One 2018; 13:e0195698. [PMID: 29649255 PMCID: PMC5896980 DOI: 10.1371/journal.pone.0195698] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 03/27/2018] [Indexed: 01/27/2023] Open
Abstract
The events underlying senescence induced by critical telomere shortening are not fully understood. Here we provide evidence that TERRA, a non-coding RNA transcribed from subtelomeres, contributes to senescence in yeast lacking telomerase (tlc1Δ). Levels of TERRA expressed from multiple telomere ends appear elevated at senescence, and expression of an artificial RNA complementary to TERRA (anti-TERRA) binds TERRA in vivo and delays senescence. Anti-TERRA acts independently from several other mechanisms known to delay senescence, including those elicited by deletions of EXO1, TEL1, SAS2, and genes encoding RNase H enzymes. Further, it acts independently of the senescence delay provided by RAD52-dependent recombination. However, anti-TERRA delays senescence in a fashion epistatic to inactivation of the conserved histone methyltransferase Dot1. Dot1 associates with TERRA, and anti-TERRA disrupts this interaction in vitro and in vivo. Surprisingly, the anti-TERRA delay is independent of the C-terminal methyltransferase domain of Dot1 and instead requires only its N-terminus, which was previously found to facilitate release of telomeres from the nuclear periphery. Together, these data suggest that TERRA and Dot1 cooperate to drive senescence.
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Affiliation(s)
- Jennifer J. Wanat
- University of Pennsylvania School of Medicine, Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, United States of America
- Washington College, Department of Biology, Chestertown, Maryland, United States of America
| | - Glennis A. Logsdon
- University of Pennsylvania School of Medicine, Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, United States of America
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Jordan H. Driskill
- University of Pennsylvania School of Medicine, Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, United States of America
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Zhong Deng
- The Wistar Institute, Gene Expression and Regulation, Philadelphia, Pennsylvania, United States of America
| | - Paul M. Lieberman
- The Wistar Institute, Gene Expression and Regulation, Philadelphia, Pennsylvania, United States of America
| | - F. Brad Johnson
- University of Pennsylvania School of Medicine, Pathology and Laboratory Medicine, Philadelphia, Pennsylvania, United States of America
- * E-mail:
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Lu L, Johnman C, McGlynn L, Mackay DF, Shiels PG, Pell JP. Association between exposure to second-hand smoke and telomere length: cross-sectional study of 1303 non-smokers. Int J Epidemiol 2017; 46:1978-1984. [DOI: 10.1093/ije/dyx212] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/12/2017] [Indexed: 12/11/2022] Open
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11
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Chilton WL, O'Brien BJ, Grace F, Charchar FJ. Telomeres, exercise and cardiovascular disease: finding the means to justify the ends. Acta Physiol (Oxf) 2017; 220:186-188. [PMID: 28238220 DOI: 10.1111/apha.12862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- W. L. Chilton
- Faculty of Health Sciences; Federation University Australia; Ballarat Vic. Australia
| | - B. J. O'Brien
- Faculty of Health Sciences; Federation University Australia; Ballarat Vic. Australia
| | - F. Grace
- Faculty of Health Sciences; Federation University Australia; Ballarat Vic. Australia
| | - F. J. Charchar
- Faculty of Science and Engineering; Federation University Australia; Ballarat Vic. Australia
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12
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The fate of patients with intermittent claudication in the 21st century revisited - results from the CAVASIC Study. Sci Rep 2017; 8:45833. [PMID: 28367968 PMCID: PMC5377933 DOI: 10.1038/srep45833] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/06/2017] [Indexed: 01/09/2023] Open
Abstract
Patients with intermittent claudication carry a high risk for cardiovascular complications. The TransAtlantic Inter-Society Consensus (TASC) Group estimated a five-year overall mortality of 30% for these patients, the majority dying from cardiovascular causes. We investigated whether this evaluation is still applicable in nowadays patients. We therefore prospectively followed 255 male patients with intermittent claudication from the CAVASIC Study during 7 years for overall mortality, vascular morbidity and mortality and local PAD outcomes. Overall mortality reached 16.1% (n = 41). Most patients died from cancer (n = 20). Half of patients (n = 22; 8.6%) died within the first five years. Incident cardiovascular events were observed among 70 patients (27.5%), 54 (21.2%) during the first five years. Vascular mortality was low with 5.1% (n = 13) for the entire and 3.1% for the first five years of follow-up. Prevalent coronary artery disease did not increase the risk to die from all or vascular causes. PAD symptoms remained stable or improved in the majority of patients (67%). In summary, compared to TASC, the proportion of cardiovascular events did not markedly decrease over the last two decades. Vascular mortality, however, was low among our population. This indicates that nowadays patients more often survive cardiovascular events and a major number dies from cancer.
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Abstract
Telomeres are tandem repeat DNA sequences present at the ends of each eukaryotic chromosome to stabilize the genome structure integrity. Telomere lengths progressively shorten with each cell division. Inflammation and oxidative stress, which are implicated as major mechanisms underlying cardiovascular diseases, increase the rate of telomere shortening and lead to cellular senescence. In clinical studies, cardiovascular risk factors such as smoking, obesity, sedentary lifestyle, and hypertension have been associated with short leukocyte telomere length. In addition, low telomerase activity and short leukocyte telomere length have been observed in atherosclerotic plaque and associated with plaque instability, thus stroke or acute myocardial infarction. The aging myocardium with telomere shortening and accumulation of senescent cells limits the tissue regenerative capacity, contributing to systolic or diastolic heart failure. In addition, patients with ion-channel defects might have genetic imbalance caused by oxidative stress-related accelerated telomere shortening, which may subsequently cause sudden cardiac death. Telomere length can serve as a marker for the biological status of previous cell divisions and DNA damage with inflammation and oxidative stress. It can be integrated into current risk prediction and stratification models for cardiovascular diseases and can be used in precise personalized treatments. In this review, we summarize the current understanding of telomeres and telomerase in the aging process and their association with cardiovascular diseases. In addition, we discuss therapeutic interventions targeting the telomere system in cardiovascular disease treatments.
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Yeh JK, Wang CY. Telomeres and Telomerase in Cardiovascular Diseases. Genes (Basel) 2016; 7:genes7090058. [PMID: 27598203 PMCID: PMC5042389 DOI: 10.3390/genes7090058] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 08/25/2016] [Accepted: 08/29/2016] [Indexed: 12/20/2022] Open
Abstract
Telomeres are tandem repeat DNA sequences present at the ends of each eukaryotic chromosome to stabilize the genome structure integrity. Telomere lengths progressively shorten with each cell division. Inflammation and oxidative stress, which are implicated as major mechanisms underlying cardiovascular diseases, increase the rate of telomere shortening and lead to cellular senescence. In clinical studies, cardiovascular risk factors such as smoking, obesity, sedentary lifestyle, and hypertension have been associated with short leukocyte telomere length. In addition, low telomerase activity and short leukocyte telomere length have been observed in atherosclerotic plaque and associated with plaque instability, thus stroke or acute myocardial infarction. The aging myocardium with telomere shortening and accumulation of senescent cells limits the tissue regenerative capacity, contributing to systolic or diastolic heart failure. In addition, patients with ion-channel defects might have genetic imbalance caused by oxidative stress-related accelerated telomere shortening, which may subsequently cause sudden cardiac death. Telomere length can serve as a marker for the biological status of previous cell divisions and DNA damage with inflammation and oxidative stress. It can be integrated into current risk prediction and stratification models for cardiovascular diseases and can be used in precise personalized treatments. In this review, we summarize the current understanding of telomeres and telomerase in the aging process and their association with cardiovascular diseases. In addition, we discuss therapeutic interventions targeting the telomere system in cardiovascular disease treatments.
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Affiliation(s)
- Jih-Kai Yeh
- Department of Cardiology, Chang Gung Memorial Hospital, 33305 Taoyuan, Taiwan.
| | - Chao-Yung Wang
- Department of Cardiology, Chang Gung Memorial Hospital, 33305 Taoyuan, Taiwan.
- Chang Gung University College of Medicine, 33302 Taoyuan, Taiwan.
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15
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Influence of DNA extraction methods on relative telomere length measurements and its impact on epidemiological studies. Sci Rep 2016; 6:25398. [PMID: 27138987 PMCID: PMC4853716 DOI: 10.1038/srep25398] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 04/13/2016] [Indexed: 01/04/2023] Open
Abstract
Measurement of telomere length is widely used in epidemiologic studies. Insufficient standardization of the measurements processes has, however, complicated the comparison of results between studies. We aimed to investigate whether DNA extraction methods have an influence on measured values of relative telomere length (RTL) and whether this has consequences for epidemiological studies. We performed four experiments with RTL measurement in quadruplicate by qPCR using DNA extracted with different methods: 1) a standardized validation experiment including three extraction methods (magnetic-particle-method EZ1, salting-out-method INV, phenol-chloroform-isoamyl-alcohol PCI) each in the same 20 samples demonstrated pronounced differences in RTL with lowest values with EZ1 followed by INV and PCI-isolated DNA; 2) a comparison of 307 samples from an epidemiological study showing EZ1-measurements 40% lower than INV-measurements; 3) a matching-approach of two similar non-diseased control groups including 143 pairs of subjects revealed significantly shorter RTL in EZ1 than INV-extracted DNA (0.844 ± 0.157 vs. 1.357 ± 0.242); 4) an association analysis of RTL with prevalent cardiovascular disease detected a stronger association with INV than with EZ1-extracted DNA. In summary, DNA extraction methods have a pronounced influence on the measured RTL-values. This might result in spurious or lost associations in epidemiological studies under certain circumstances.
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Raschenberger J, Kollerits B, Titze S, Köttgen A, Bärthlein B, Ekici AB, Forer L, Schönherr S, Weissensteiner H, Haun M, Wanner C, Eckardt KU, Kronenberg F. Do telomeres have a higher plasticity than thought? Results from the German Chronic Kidney Disease (GCKD) study as a high-risk population. Exp Gerontol 2015; 72:162-6. [DOI: 10.1016/j.exger.2015.09.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 09/04/2015] [Accepted: 09/26/2015] [Indexed: 11/17/2022]
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Raschenberger J, Kollerits B, Titze S, Köttgen A, Bärthlein B, Ekici AB, Forer L, Schönherr S, Weissensteiner H, Haun M, Wanner C, Eckardt KU, Kronenberg F. Association of relative telomere length with cardiovascular disease in a large chronic kidney disease cohort: the GCKD study. Atherosclerosis 2015; 242:529-34. [PMID: 26302167 DOI: 10.1016/j.atherosclerosis.2015.08.020] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 08/10/2015] [Accepted: 08/11/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) affects 10-15% of the general population and affected individuals are at an increased risk for cardiovascular disease (CVD). Since telomere length is considered to be involved in biological aging, we tested whether relative telomere length (RTL) might be a marker for these two diseases. METHODS The German Chronic Kidney Disease (GCKD) study is an ongoing prospective cohort study including patients with CKD of moderate severity. RTL was measured by qPCR in 4955 out of 5217 GCKD patients at baseline. RESULTS RTL was distributed in the cohort with a mean ± SD of 0.95 ± 0.19. CVD was present in 1266 patients. Each decrease of RTL by 0.1 unit was associated with a higher probability for prevalent CVD: OR = 1.06, 95% CI 1.02-1.11, p = 0.007 (adjusted for age, sex, eGFR, BMI, ln-CRP, smoking, hypertension, diabetes, and lipids). Similar findings were observed for history of specific CVD entities, such as coronary artery disease (OR = 1.05, p = 0.025), myocardial infarction (OR = 1.08, p = 0.013) and percutaneous transluminal coronary angioplasty (OR = 1.06, p = 0.032). The strongest associations were found for interventions at the carotid arteries (OR = 1.25, p = 0.001) as well as aortic aneurysms (OR = 1.22, p = 0.001). CONCLUSIONS In the presence of CKD there is a significant association between shorter RTL and CVD manifestations. RTL appears to be a marker reflecting changes in homeostasis associated with CKD that may contribute to the excess CVD risk.
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Affiliation(s)
- Julia Raschenberger
- 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
| | - Stephanie Titze
- Department of Nephrology and Hypertension, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Anna Köttgen
- Division of Nephrology, Department of Medicine, University Medical Center Freiburg, Freiburg, Germany
| | - Barbara Bärthlein
- Chair of Medical Informatics, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Arif B Ekici
- Institute of Human Genetics, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Lukas Forer
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Sebastian Schönherr
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Hansi Weissensteiner
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Margot Haun
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph Wanner
- Division of Nephrology, Department of Medicine, University of Würzburg, Würzburg, Germany
| | - Kai-Uwe Eckardt
- Department of Nephrology and Hypertension, University of Erlangen-Nürnberg, Erlangen, Germany
| | - Florian Kronenberg
- Division of Genetic Epidemiology, Department of Medical Genetics, Molecular and Clinical Pharmacology, Medical University of Innsbruck, Innsbruck, Austria.
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Association of relative telomere length with progression of chronic kidney disease in two cohorts: effect modification by smoking and diabetes. Sci Rep 2015; 5:11887. [PMID: 26149682 PMCID: PMC4493689 DOI: 10.1038/srep11887] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Accepted: 06/09/2015] [Indexed: 01/18/2023] Open
Abstract
Chronic kidney disease (CKD) is a highly progressive disease. We studied the association between relative telomere length (RTL) and CKD progression and tested whether this association is modified by smoking and diabetes mellitus. RTL was measured by qPCR in two prospective cohort studies, the MMKD-Study (n = 166) and the CRISIS-Study (n = 889) with a median follow-up of 4.5 and 2.8 years, respectively. Progression was defined as doubling of baseline serum creatinine (MMKD-Study) and/or end stage renal disease (both studies). 59 and 105 of the patients from MMKD and CRISIS experienced a progression of CKD. Mean standardized pooled RTL was 0.74 ± 0.29. In the meta-analysis shorter RTL at baseline showed a borderline association with CKD progression (HR = 1.07 [95%CI 1.00-1.15]; p = 0.06). We observed an effect modification of RTL and CKD progression by smoking and diabetes (p-values of interaction p = 0.02 and p = 0.09, respectively). Each 0.1 unit shorter RTL was significantly associated with an increased hazard for CKD progression in active-smokers by 44% (HR = 1.44 [1.16-1.81]; p = 0.001) and in patients with diabetes mellitus by 16% (HR = 1.16 [1.01-1.34]; p = 0.03). Estimates were adjusted for baseline age, sex, proteinuria and GFR. This study in two independent cohorts reinforces that RTL is a marker and potentially a pathogenetic factor for CKD progression.
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Sobenin IA, Zhelankin AV, Sinyov VV, Bobryshev YV, Orekhov AN. Mitochondrial Aging: Focus on Mitochondrial DNA Damage in Atherosclerosis - A Mini-Review. Gerontology 2014; 61:343-9. [DOI: 10.1159/000368923] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 10/08/2014] [Indexed: 11/19/2022] Open
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20
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Milic M, Frustaci A, Del Bufalo A, Sánchez-Alarcón J, Valencia-Quintana R, Russo P, Bonassi S. DNA damage in non-communicable diseases: A clinical and epidemiological perspective. Mutat Res 2014; 776:118-27. [PMID: 26255943 DOI: 10.1016/j.mrfmmm.2014.11.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/28/2014] [Accepted: 11/30/2014] [Indexed: 02/02/2023]
Abstract
Non-communicable diseases (NCDs) are a leading cause of death and disability, representing 63% of the total death number worldwide. A characteristic phenotype of these diseases is the accelerated aging, which is the result of phenomena such as accumulated DNA damage, telomere capping loss and subcellular irreversible/nonrepaired oxidative damage. DNA damage, mostly oxidative, plays a key role in the development of most common NCDs. The present review will gather some of the most relevant knowledge concerning the presence of DNA damage in NCDs focusing on cardiovascular diseases, diabetes, chronic obstructive pulmonary disease, and neurodegenerative disorders, and discussing a selection of papers from the most informative literature. The challenge of comorbidity and the potential offered by new systems approaches for introducing these biomarkers into the clinical decision process will be discussed. Systems Medicine platforms represent the most suitable approach to personalized medicine, enabling to identify new patterns in the pathogenesis, diagnosis and prognosis of chronic diseases.
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Affiliation(s)
- Mirta Milic
- IRCCS San Raffaele Pisana, Area of Clinical and Molecular Epidemiology, 00166 Rome, Italy; Institute for Medical Research and Occupational Health, Mutagenesis Unit, 10 000 Zagreb, Croatia
| | - Alessandra Frustaci
- IRCCS San Raffaele Pisana, Area of Clinical and Molecular Epidemiology, 00166 Rome, Italy
| | - Alessandra Del Bufalo
- IRCCS San Raffaele Pisana, Area of Clinical and Molecular Epidemiology, 00166 Rome, Italy
| | - Juana Sánchez-Alarcón
- Universidad Autónoma de Tlaxcala, Facultad de Agrobiología, Evaluación de Riesgos Ambientales, 90062 Tlaxcala, Mexico
| | - Rafael Valencia-Quintana
- Universidad Autónoma de Tlaxcala, Facultad de Agrobiología, Evaluación de Riesgos Ambientales, 90062 Tlaxcala, Mexico
| | - Patrizia Russo
- IRCCS San Raffaele Pisana, Area of Clinical and Molecular Epidemiology, 00166 Rome, Italy
| | - Stefano Bonassi
- IRCCS San Raffaele Pisana, Area of Clinical and Molecular Epidemiology, 00166 Rome, Italy.
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Leucocyte telomere length and risk of type 2 diabetes mellitus: new prospective cohort study and literature-based meta-analysis. PLoS One 2014; 9:e112483. [PMID: 25390655 PMCID: PMC4229188 DOI: 10.1371/journal.pone.0112483] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/06/2014] [Indexed: 12/04/2022] Open
Abstract
Background Short telomeres have been linked to various age-related diseases. We aimed to assess the association of telomere length with incident type 2 diabetes mellitus (T2DM) in prospective cohort studies. Methods Leucocyte relative telomere length (RTL) was measured using quantitative polymerase chain reaction in 684 participants of the prospective population-based Bruneck Study (1995 baseline), with repeat RTL measurements performed in 2005 (n = 558) and 2010 (n = 479). Hazard ratios for T2DM were calculated across quartiles of baseline RTL using Cox regression models adjusted for age, sex, body-mass index, smoking, socio-economic status, physical activity, alcohol consumption, high-density lipoprotein cholesterol, log high-sensitivity C-reactive protein, and waist-hip ratio. Separate analyses corrected hazard ratios for within-person variability using multivariate regression calibration of repeated measurements. To contextualise findings, we systematically sought PubMed, Web of Science and EMBASE for relevant articles and pooled results using random-effects meta-analysis. Results Over 15 years of follow-up, 44 out of 606 participants free of diabetes at baseline developed incident T2DM. The adjusted hazard ratio for T2DM comparing the bottom vs. the top quartile of baseline RTL (i.e. shortest vs. longest) was 2.00 (95% confidence interval: 0.90 to 4.49; P = 0.091), and 2.31 comparing the bottom quartile vs. the remainder (1.21 to 4.41; P = 0.011). The corresponding hazard ratios corrected for within-person RTL variability were 3.22 (1.27 to 8.14; P = 0.014) and 2.86 (1.45 to 5.65; P = 0.003). In a random-effects meta-analysis of three prospective cohort studies involving 6,991 participants and 2,011 incident T2DM events, the pooled relative risk was 1.31 (1.07 to 1.60; P = 0.010; I2 = 69%). Conclusions/Interpretation Low RTL is independently associated with the risk of incident T2DM. To avoid regression dilution biases in observed associations of RTL with disease risk, future studies should implement methods correcting for within-person variability in RTL. The causal role of short telomeres in T2DM development remains to be determined.
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Lamina C, Linsenmeyer J, Weissensteiner H, Kollerits B, Meisinger C, Rantner B, Stöckl D, Stadler M, Klein-Weigel P, Peters A, Fraedrich G, Kronenberg F. Correlation between a positive family risk score and peripheral artery disease in one case-control and two population-based studies. Atherosclerosis 2014; 237:243-50. [DOI: 10.1016/j.atherosclerosis.2014.08.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 07/16/2014] [Accepted: 08/12/2014] [Indexed: 02/02/2023]
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23
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Zietzer A, Hillmeister P. Leucocyte telomere length as marker for cardiovascular ageing. Acta Physiol (Oxf) 2014; 211:251-6. [PMID: 24666613 DOI: 10.1111/apha.12284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- A. Zietzer
- Charité - Universitaetsmedizin Berlin; Center for Cardiovascular Research & Experimental and Clinical Research Center; Richard-Thoma-Laboratories for Arteriogenesis; Berlin Germany
| | - P. Hillmeister
- Charité - Universitaetsmedizin Berlin; Center for Cardiovascular Research & Experimental and Clinical Research Center; Richard-Thoma-Laboratories for Arteriogenesis; Berlin Germany
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