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Lozano M, McEachan RRC, Wright J, Yang TC, Dow C, Kadawathagedara M, Lepeule J, Bustamante M, Maitre L, Vrijheid M, Brantsæter AL, Meltzer HM, Bempi V, Roumeliotaki T, Thomsen C, Nawrot T, Broberg K, Llop S. Early life exposure to mercury and relationships with telomere length and mitochondrial DNA content in European children. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 932:173014. [PMID: 38729362 DOI: 10.1016/j.scitotenv.2024.173014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/03/2024] [Accepted: 05/03/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND Telomere length (TL) and mitochondrial function expressed as mitochondrial DNA copy number (mtDNAcn) are biomarkers of aging and oxidative stress and inflammation, respectively. Methylmercury (MeHg), a common pollutant in fish, induces oxidative stress. We hypothesized that elevated oxidative stress from exposure to MeHg decreases mtDNAcn and shortens TL. METHODS Study participants are 6-11-year-old children from the HELIX multi-center birth cohort study, comprising six European countries. Prenatal and postnatal total mercury (THg) concentrations were measured in blood samples, TL and mtDNAcn were determined in child DNA. Covariates and confounders were obtained by questionnaires. Robust regression models were run, considering sociodemographic and lifestyle covariates, as well as fish consumption. Sex, ethnicity, and fish consumption interaction models were also run. RESULTS We found longer TL with higher pre- and postnatal THg blood concentrations, even at low-level THg exposure according to the RfD proposed by the US EPA. The prenatal association showed a significant linear relationship with a 3.46 % increase in TL for each unit increased THg. The postnatal association followed an inverted U-shaped marginal non-linear relationship with 1.38 % an increase in TL for each unit increased THg until reaching a cut-point at 0.96 μg/L blood THg, from which TL attrition was observed. Higher pre- and postnatal blood THg concentrations were consistently related to longer TL among cohorts and no modification effect of fish consumption nor children's sex was observed. No association between THg exposure and mtDNAcn was found. DISCUSSION We found evidence that THg is associated with TL but the associations seem to be time- and concentration-dependent. Further studies are needed to clarify the mechanism behind the telomere changes of THg and related health effects.
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Affiliation(s)
- Manuel Lozano
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine Department, Universitat de València, Valencia, Spain.
| | - Rosemary R C McEachan
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, United Kingdom
| | - John Wright
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, United Kingdom
| | - Tiffany C Yang
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, United Kingdom
| | - Courtney Dow
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, INRAE, CRESS, Paris, France
| | - Manik Kadawathagedara
- Université Paris Cité and Université Sorbonne Paris Nord, INSERM, INRAE, CRESS, Paris, France
| | - Johanna Lepeule
- Université Grenoble Alpes, INSERM, CNRS, Institute for Advanced Biosciences (IAB), Grenoble, France
| | - Mariona Bustamante
- ISGlobal, Universitat Pompeu Fabra (UPF); Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Lea Maitre
- ISGlobal, Universitat Pompeu Fabra (UPF); Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Martine Vrijheid
- ISGlobal, Universitat Pompeu Fabra (UPF); Barcelona, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
| | - Anne Lise Brantsæter
- Division of Climate and Environmental Health and Centre for Sustainable Diets, Norwegian Institute of Public Health, Oslo, Norway
| | - Helle Margrete Meltzer
- Division of Climate and Environmental Health and Centre for Sustainable Diets, Norwegian Institute of Public Health, Oslo, Norway
| | - Vasiliki Bempi
- Department of Social Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Theano Roumeliotaki
- Department of Social Medicine, School of Medicine, University of Crete, Heraklion, Greece
| | - Cathrine Thomsen
- Department of Food Safety, Norwegian Institute of Public Health (NIPH), Oslo, Norway
| | - Tim Nawrot
- Research Unit Environment and Health, KU Leuven Department of Public Health and Primary Care, University of Leuven, Leuven, Belgium
| | - Karin Broberg
- Division of Occupational and Environmental Medicine, Department of Laboratory Medicine, Lund University, Lund, Sweden; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sabrina Llop
- Epidemiology and Environmental Health Joint Research Unit, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain
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Koyuncu H, Kara N, Dabak Ş. Investigation of the possible effects of night shift on telomere length and mtDNA copy number in nurses. NUCLEOSIDES, NUCLEOTIDES & NUCLEIC ACIDS 2024:1-14. [PMID: 38830229 DOI: 10.1080/15257770.2024.2348089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 04/22/2024] [Indexed: 06/05/2024]
Abstract
In this study, we aimed to investigate the impacts of altered circadian rhythm on telomere length and mtDNA copy number (mtDNA-CN) in nurses working night shifts. In our study, 52 healthy nurses working in shifts at Ondokuz Mayıs University Hospital and 45 healthy control subjects working during the day were included. qRT-PCR technique was used for the determination of telomere length and mtDNA-CN. It was observed that the shift-work group had poor sleep quality (p = 0.004), feeling tired (p < 0.01) and stressed (p = 0.02) more than control group working during the day. Nurses working in shifts were found to have 1.18 times longer telomeres with respect to the control group working during the day (p = 0.005). When compared among shift workers, poor sleep quality and insufficient sleep duration shortened telomeres (r = 0.32; p = 0.02). There was no statistically significantdisparity regarding mtDNA-CN among the nurses working in shifts and the control group working during the day (p = 0.07). Insufficient sleep was associated with decreased mtDNA-CN when shift-working nurses were compared according to sleep quality (p = 0.006). Furthermore, mtDNA-CN of nurses with poor sleep quality was correlated with lower mtDNA-CN in comparison to nurses with good sleep quality (r = 0.284; p = 0.04). The mtDNA-CN of the nurses was positively associated with the sleep duration the night sleep before the night shift (r = 0.32; p = 0.02). Inadequate sleep duration and quality were observed to cause a reduction in mtDNA-CN of nurses. In conclusion, it has been observed that poor sleep quality and duration are related to shortened telomere length and decreased mtDNA-CN in night shift nurses.
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Affiliation(s)
- Hilal Koyuncu
- Faculty of Medicine, Department of Medical Biology, Ondokuz Mayıs University, Samsun, Turkey
| | - Nurten Kara
- Faculty of Medicine, Department of Medical Biology, Ondokuz Mayıs University, Samsun, Turkey
| | - Şennur Dabak
- Faculty of Medicine, Department of Public Health, Ondokuz Mayıs University, Samsun, Turkey
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3
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Ojeda-Rodriguez A, Rangel-Zuñiga OA, Arenas-de Larriva AP, Gutierrez-Mariscal FM, Torres-Peña JD, Romero-Cabrera JL, Podadera-Herreros A, García-Fernandez H, Porras-Pérez E, Luque RM, Kales SN, Perez-Martinez P, Delgado-Lista J, Yubero-Serrano EM, Lopez-Miranda J. Telomere length as biomarker of nutritional therapy for prevention of type 2 diabetes mellitus development in patients with coronary heart disease: CORDIOPREV randomised controlled trial. Cardiovasc Diabetol 2024; 23:98. [PMID: 38493287 PMCID: PMC10944592 DOI: 10.1186/s12933-024-02175-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/20/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Telomere Length (TL), a marker of cellular aging, holds promise as a biomarker to elucidate the molecular mechanism of diabetes. This study aimed to investigate whether shorter telomeres are associated with a higher risk of type 2 diabetes mellitus (T2DM) incidence in patients with coronary heart disease; and to determine whether the most suitable dietary patterns, particularly a Mediterranean diet or a low-fat diet, can mitigate the development of diabetes in these patients after a follow-up period of five years. METHODS The CORonary Diet Intervention with Olive oil and cardiovascular PREVention study (CORDIOPREV study) was a single-centre, randomised clinical trial done at the Reina Sofia University Hospital in Córdoba, Spain. Patients with established coronary heart disease (aged 20-75 years) were randomly assigned in a 1:1 ratio by the Andalusian School of Public Health to receive two healthy diets. Clinical investigators were masked to treatment assignment; participants were not. Quantitative-PCR was used to assess TL measurements. FINDINGS 1002 patients (59.5 ± 8.7 years and 82.5% men) were enrolled into Mediterranean diet (n = 502) or a low-fat diet (n = 500) groups. In this analysis, we included all 462 patients who did not have T2DM at baseline. Among them, 107 patients developed T2DM after a median of 60 months. Cox regression analyses showed that patients at risk of short telomeres (TL < percentile 20th) are more likely to experience T2DM than those at no risk of short telomeres (HR 1.65, p-value 0.023). In terms of diet, patients at high risk of short telomeres had a higher risk of T2DM incidence after consuming a low-fat diet compared to patients at no risk of short telomeres (HR 2.43, 95CI% 1.26 to 4.69, p-value 0.008), while no differences were observed in the Mediterranean diet group. CONCLUSION Patients with shorter TL presented a higher risk of developing T2DM. This association could be mitigated with a specific dietary pattern, in our case a Mediterranean diet, to prevent T2DM in patients with coronary heart disease. TRIAL REGISTRATION Clinicaltrials.gov number NCT00924937.
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Affiliation(s)
- Ana Ojeda-Rodriguez
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Oriol A Rangel-Zuñiga
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Antonio P Arenas-de Larriva
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Francisco M Gutierrez-Mariscal
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Jose D Torres-Peña
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Juan L Romero-Cabrera
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Alicia Podadera-Herreros
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Helena García-Fernandez
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Esther Porras-Pérez
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Raul M Luque
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, Cordoba, 14004, Spain
| | - Stefanos N Kales
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Occupational Medicine, Cambridge Health Alliance, Harvard Medical School, Cambridge, MA, USA
| | - Pablo Perez-Martinez
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Javier Delgado-Lista
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Elena M Yubero-Serrano
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain
| | - Jose Lopez-Miranda
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, Cordoba, 14004, Spain.
- Department of Medical and Surgical Science, University of Cordoba, Cordoba, 14004, Spain.
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, Cordoba, 14004, Spain.
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, 28029, Spain.
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4
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Chen M, Wang Z, Xu H, Teng P, Li W, Ma L. Association between modifiable lifestyle factors and telomere length: a univariable and multivariable Mendelian randomization study. J Transl Med 2024; 22:160. [PMID: 38365769 PMCID: PMC10870665 DOI: 10.1186/s12967-024-04956-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 02/05/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Telomere length has long been recognized as a valuable biomarker of aging and is inversely correlated with chronological age. Various lifestyle factors have been implicated in telomere shortening or preservation; however, the association between lifestyle factors and telomere length remains controversial. To address this issue, we conducted a Mendelian randomization (MR) analysis to investigate the potential causal associations between multiple lifestyle factors and telomere length. METHODS Independent genetic variants strongly associated with lifestyle factors (tobacco smoking, sleep duration, insomnia, and physical activity) were selected as instrumental variables from corresponding genome-wide association studies (GWASs). Summary-level data for telomere length was obtained from a GWAS comprising 472,174 European ancestries. Univariable and multivariable MR analyses were performed to assess the relationships. RESULTS The genetic liability to lifetime smoking was robustly associated with shorter telomere length (odd ratio [OR]: 0.882; 95% confidence interval [CI]: 0.847-0.918). Genetically predicted insomnia was also linked to shorter telomere length (OR: 0.972; 95% CI: 0.959-0.985), while no significant association was observed between sleep duration and telomere length. Furthermore, a suggestive association was found between moderate-to-vigorous physical activity and longer telomere length (OR: 1.680; 95% CI: 1.115-2.531). In multivariable MR analyses, adjusting for potential mediators such as body mass index, type 2 diabetes, alcohol consumption, and alcohol use disorder, the associations of lifetime smoking and insomnia with telomere length remained robust. CONCLUSION Our findings suggest that smoking and insomnia may contribute to telomere shortening, while physical activity may play a role in telomere length maintenance. These findings underscore the importance of managing positive risk factors and adopting a healthy lifestyle to promote telomere health.
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Affiliation(s)
- Miao Chen
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Zhen Wang
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Hongfei Xu
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Peng Teng
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Weidong Li
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Number 79 Qingchun Road, Hangzhou, China
| | - Liang Ma
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Number 79 Qingchun Road, Hangzhou, China.
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5
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Ojeda-Rodriguez A, Alcala-Diaz JF, Rangel-Zuñiga OA, Arenas-de Larriva AP, Gutierrez-Mariscal FM, Torres-Peña JD, Mora-Ortiz M, Romero-Cabrera JL, Luque RM, Ordovas JM, Perez-Martinez P, Delgado-Lista J, Yubero-Serrano EM, Lopez-Miranda J. Telomere Maintenance Is Associated with Type 2 Diabetes Remission in Response to a Long-Term Dietary Intervention without Non-Weight Loss in Patients with Coronary Heart Disease: From the CORDIOPREV Randomized Controlled Trial. Antioxidants (Basel) 2024; 13:125. [PMID: 38275650 PMCID: PMC10813241 DOI: 10.3390/antiox13010125] [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: 12/25/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
In order to evaluate whether telomere maintenance is associated with type 2 diabetes remission, newly diagnosed type 2 diabetes patients without glucose-lowering treatment (183 out of 1002) from the CORDIOPREV study (NCT00924937) were randomized to consume a Mediterranean or low-fat diet. Patients were classified as Responders, those who reverted from type 2 diabetes during the 5 years of dietary intervention (n = 69), and Non-Responders, who did not achieve diabetes remission by the end of the follow-up period (n = 104). We found no differences in diabetes remission between the two diets, and we determined telomere length (TL) by measuring qPCR, telomerase activity using the TRAP assay, and direct redox balance based on the ratio of reduced glutathione (GSH) to oxidized glutathione (GSSH) via colorimetric assay. Responders exhibited higher baseline TL in comparison with Non-Responders (p = 0.040), and a higher TL at baseline significantly predicted a higher probability of type 2 diabetes remission (OR 2.13; 95% CI, 1.03 to 4.41). After the dietary intervention, Non-Responders showed significant telomere shortening (-0.19, 95% CI -0.32 to 0.57; p = 0.005). Telomere shortening was significantly pronounced in type 2 diabetes patients with a worse profile of insulin resistance and/or beta-cell functionality: high hepatic insulin resistance fasting, a high disposition index (-0.35; 95% CI, -0.54 to -0.16; p < 0.001), and a low disposition index (-0.25; 95% CI, -0.47 to -0.01; p = 0.037). In addition, changes in TL were correlated to the GSH/GSSG ratio. Responders also showed increased telomerase activity compared with baseline (p = 0.048), from 0.16 (95% CI, 0.08 to 0.23) to 0.28 (95% CI, 0.15 to 0.40), with a more marked increase after the dietary intervention compared with Non-Responders (+0.07; 95% CI, -0.06-0.20; p = 0.049). To conclude, telomere maintenance may play a key role in the molecular mechanisms underlying type 2 diabetes remission in newly diagnosed patients. However, further larger-scale prospective studies are necessary to corroborate our findings.
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Affiliation(s)
- Ana Ojeda-Rodriguez
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Juan F. Alcala-Diaz
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Oriol Alberto Rangel-Zuñiga
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Antonio P. Arenas-de Larriva
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Francisco M. Gutierrez-Mariscal
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Jose D. Torres-Peña
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Marina Mora-Ortiz
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Juan L. Romero-Cabrera
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Raul M. Luque
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Department of Cell Biology, Physiology and Immunology, University of Cordoba, 14004 Cordoba, Spain
| | - Jose M. Ordovas
- Nutrition and Genomics Laboratory, J.M. US Department of Agriculture Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA;
- Instituto Madrileño de Estudios Avanzados en Alimentación (IMDEA-Food), 28049 Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), 28029 Madrid, Spain
| | - Pablo Perez-Martinez
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Javier Delgado-Lista
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Elena M. Yubero-Serrano
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Jose Lopez-Miranda
- Lipids and Atherosclerosis Unit, Internal Medicine Unit, Reina Sofia University Hospital, 14004 Cordoba, Spain; (A.O.-R.); (J.F.A.-D.); (O.A.R.-Z.); (A.P.A.-d.L.); (F.M.G.-M.); (J.D.T.-P.); (M.M.-O.); (J.L.R.-C.); (P.P.-M.); (J.D.-L.); (E.M.Y.-S.)
- Department of Medical and Surgical Science, University of Cordoba, 14004 Cordoba, Spain
- Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Av. Menendez Pidal, s/n, 14004 Cordoba, Spain;
- CIBER Fisiopatologia de la Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Sabot D, Lovegrove R, Stapleton P. The association between sleep quality and telomere length: A systematic literature review. Brain Behav Immun Health 2023; 28:100577. [PMID: 36691437 PMCID: PMC9860369 DOI: 10.1016/j.bbih.2022.100577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/20/2022] [Indexed: 01/10/2023] Open
Abstract
Several sleep parameters present an elevated risk for processes that contribute to cellular aging. Short sleep duration, sleep apnoea, and insomnia are significantly associated with shorter telomeres, a biological marker of cellular aging. However, there has been no review or analysis of studies that have examined the association between the psychological construct of sleep quality and telomere length. The present study aimed to provide a systematic review of the association between sleep quality and telomere length. A systematic review of English articles was conducted using MEDLINE/PubMed, PsycINFO, Google Scholar, and Web of Science electronic databases, with the final search conducted on 3rd September 2021. Search terms included sleep quality, poor sleep, insomnia, sleep difficulties, sleep issue*, non-restorative sleep, telomere*, cellular aging, and immune cell telomere length. Study eligibility criteria included human participants aged 18 years or older and a reproducible methodology. Study appraisal and synthesis were completed using a systematic search in line with a PICOS approach (P = Patient, problem, or population; I = Intervention, prognostic factor, exposure; C = Comparison, control, or comparator; O = Outcomes; S = Study designs). Twenty-two studies met review inclusion criteria. Qualitative synthesis of the literature indicated insufficient evidence overall to support a significant association between sleep quality and telomere length. Limitations across studies were addressed, such as the assessment of examined constructs. Findings highlight important targets for future research, including the standardised operationalisation of the sleep quality construct and experimental study designs. Research in this area has clinical significance by identifying possible mechanisms that increase the risk for age-related disease and mortality. PROSPERO Registration No.: CRD 42021233139.
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Affiliation(s)
- Debbie Sabot
- School of Psychology, Faculty of Society and Design, Bond University, Australia
| | - Rhianna Lovegrove
- School of Psychology, Faculty of Society and Design, Bond University, Australia
| | - Peta Stapleton
- School of Psychology, Faculty of Society and Design, Bond University, Australia
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Longitudinal Association of Telomere Dynamics with Obesity and Metabolic Disorders in Young Children. Nutrients 2022; 14:nu14235191. [PMID: 36501220 PMCID: PMC9735474 DOI: 10.3390/nu14235191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/28/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
In adults, short leukocyte telomere length (LTL) is associated with metabolic disorders, such as obesity and diabetes mellitus type 2. These associations could stem from early life interactions between LTL and metabolic disorders. To test this hypothesis, we explored the associations between LTL and metabolic parameters as well as their evolution over time in children with or without obesity at baseline. Seventy-three (n = 73) children attending our Outpatient Clinic for the Prevention and Management of Overweight and Obesity in Childhood and Adolescence, aged 2-10 years (mean ± SD: 7.6 ± 2.0 years), were followed for 2 to 4 years. Anthropometric, clinical, and biological (including LTL by Southern blot) measurements were performed annually. Baseline LTL correlated negatively with BMI (p = 0.02), fat percentage (p = 0.01), and blood glucose (p = 0.0007). These associations persisted after adjustments for age and sex. No associations were found between LTL attrition during the follow-up period and any of the metabolic parameters. In young children, obesity and metabolic disturbances were associated with shorter telomeres but were not associated with more pronounced LTL attrition. These results suggest that short telomeres contribute to the development of obesity and metabolic disorders very early in life, which can have a major impact on health.
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Barbosa ARC, Nunes DP, Lima DB, Colombo FA, Nunes JB, Santos Orlandi AAD, Rocha GDS, Pereira DS, Corona LP, Brito TRPD. Association of Social Support Network with Telomere Length: A Cross-Sectional Study with Community-Dwelling Older Adults. Rejuvenation Res 2022; 25:253-259. [PMID: 36103374 DOI: 10.1089/rej.2022.0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Considering that telomere length can be determined not only by issues related to cell biology but also by aspects related to social factors and environmental exposures, studies on the relationship between social aspects and telomere length can help to better understand the still scarcely known aspects of the human aging process. Thus, this research seeks to verify whether social support networks are associated with telomere length in older adults. This is a cross-sectional study conducted with 448 individuals aged at least 60 years living in the urban area of an inland Brazilian municipality. Relative quantification of telomere length was obtained through real-time qPCR. Social support was assessed through the Medical Outcomes Study Social Support Scale. Descriptive statistics and multiple logistic regression were used in data analysis. The evaluated social support networks for older adults consist in a mean of 16.4 people, and the percentage of older adults who reported up to five members in their network was 27.75%. Shorter telomere length was identified in 25% of the participants, and the older adults who reported having up to five members in their support network were more likely to have a shorter telomere length than those who reported more numerous networks (odds ratio: 1.89, p = 0.011) regardless of gender, age, household arrangement, cognitive decline, and dependence for basic and instrumental activities of daily living, which suggests that measures that stimulate the creation and maintenance of social support networks should be implemented to improve older adults' health.
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Carroll JE, Price JE, Brown J, Bamishigbin O, Shalowitz MU, Ramey S, Dunkel Schetter C. Lifetime discrimination in low to middle income mothers and cellular aging: A prospective analysis. Soc Sci Med 2022; 311:115356. [PMID: 36122526 PMCID: PMC10024938 DOI: 10.1016/j.socscimed.2022.115356] [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: 01/03/2022] [Revised: 08/15/2022] [Accepted: 09/03/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Experiences of discrimination on the basis of race, ethnicity, and other characteristics are associated with adverse health outcomes, including elevated rates of morbidity in later life and earlier mortality. Acceleration of biological aging is a plausible pathway linking discrimination to disease risk. The objective of this study was to examine the relationship of self-reported lifetime and everyday discrimination to women's telomere length several years after birth of a child in a longitudinal cohort study. METHODS The Community Child Health Network (CCHN) conducted a community-based participatory research project focused on racial, ethnic, and socioeconomic disparities in maternal and child health. Data for the current substudy are from a longitudinal cohort study in 3 of the 5 project sites. This multi-site community-based longitudinal study was conducted in Lake County, IL north of Chicago, Washington, D.C., and rural North Carolina. Participants were low to middle-income mothers (N = 103) with a primary identity of Hispanic/Latina, Black, or non-Hispanic White who rated their experience of everyday and lifetime discrimination during an at-home interview one-month postpartum. Buccal samples were collected to assay buccal cell telomere length several years later when a consecutive child was 3-5 years of age. Telomere length derived from buccal cells was used as a biomarker indicating cellular aging and a risk factor for age-related disease. RESULTS Mothers (18-39 years old) who reported higher lifetime discrimination had shorter telomere length an average of 5.6 years later (B = -0.22 [SE = 0.04], p < 0.001). Mother's reports of everyday discrimination were not significantly related to telomere length (0.01[0.01], p = 0.15). CONCLUSIONS These findings suggest that lifetime exposure to discrimination, but not necessarily current reports of everyday discrimination, may increase biological aging as indicated by shorter buccal cell telomere length, providing evidence of a plausible route through which discrimination contributes to increased risk for earlier onset aging and age-related disease in women.
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Affiliation(s)
- Judith E Carroll
- University of California, Los Angeles, Cousins Center for Psychoneuroimmunology, Department of Psychiatry & Biobehavioral Science, David Geffen School of Medicine, Jane & Terry Semel Institute for Neuroscience & Human Behavior, United States.
| | - Jonah Eliezer Price
- University of California, Los Angeles, Department of Psychology, United States
| | - Joni Brown
- University of California, Los Angeles, Department of Psychology, United States
| | | | - Madeleine U Shalowitz
- NorthShore University HealthSystem, Department of Pediatrics, Rush University, Department of Psychiatry, United States
| | - Sharon Ramey
- Virginia Tech, Fralin Biomedical Research Institute, Departments of Psychology, Neuroscience, and Human Development, Department of Psychiatry & Behavioral Medicine and Pediatrics, United States
| | - Christine Dunkel Schetter
- University of California, Los Angeles, Cousins Center for Psychoneuroimmunology, Department of Psychiatry & Biobehavioral Science, David Geffen School of Medicine, Jane & Terry Semel Institute for Neuroscience & Human Behavior, United States; University of California, Los Angeles, Department of Psychology, United States
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Montiel Ishino FA, Rowan CE, Villalobos K, Rajbhandari-Thapa J, Williams F. A Time-Varying Effect Model (TVEM) of the Complex Association of Tobacco Use and Smoke Exposure on Mean Telomere Length: Differences between Racial and Ethnic Groups Assessed in the National Health and Nutrition Examination Survey. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:11069. [PMID: 36078786 PMCID: PMC9518386 DOI: 10.3390/ijerph191711069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/24/2022] [Accepted: 08/31/2022] [Indexed: 06/15/2023]
Abstract
Telomere length is affected by lifestyle and environmental factors and varies between racial and ethnic groups; however, studies are limited, with mixed findings. This study examined the effects of tobacco use and smoke exposure on mean telomere length to identify critical age periods by race/ethnicity. We used time-varying effect modeling on the National Health and Nutrition Examination Survey for continuous years 1999-2002 to observe the effects of active tobacco use and environmental tobacco smoke-measured through serum cotinine-and mean telomere length for adults 19 to 85 and older (N = 7826). Models were run for Mexican American, other Hispanic, non-Hispanic White, non-Hispanic Black, and other/multi-race categories to allow for time-varying group differences, and controlled for biological sex, socioeconomic status, education, and ever-smoker status. Serum cotinine was found to have an increasing effect on telomere length from age 37 to approximately age 74 among Mexican Americans. Among other/multi-race individuals serum cotinine was found to have a decreasing effect at approximately age 42, and among Blacks, it had an overall decreasing effect from age 61 to 78. Findings reveal a further need to focus additional support and resources to intervene regarding disparate health effects from tobacco use and environmental smoke exposure for already vulnerable groups at particular ages.
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Affiliation(s)
- Francisco Alejandro Montiel Ishino
- Division of Intramural Research, National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD 20892, USA
| | - Claire E. Rowan
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA
| | - Kevin Villalobos
- Division of Intramural Research, National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD 20892, USA
| | - Janani Rajbhandari-Thapa
- Department of Health Policy and Management, College of Public Health, University of Georgia, Athens, GA 30602, USA
| | - Faustine Williams
- Division of Intramural Research, National Institute on Minority Health and Health Disparities, National Institutes of Health, Bethesda, MD 20892, USA
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Shen J, Fuemmeler BF, Sheppard VB, Bear HD, Song R, Chow WH, Zhao H. Neighborhood disadvantage and biological aging biomarkers among breast cancer patients. Sci Rep 2022; 12:11006. [PMID: 35773311 PMCID: PMC9246873 DOI: 10.1038/s41598-022-15260-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/21/2022] [Indexed: 11/09/2022] Open
Abstract
Living in a disadvantaged neighborhood is associated with adverse clinical outcomes among breast cancer patients, but the underlying pathway is still unclear. Limited evidence has suggested that accelerated biological aging may play an important role. In this study, using a sub-sample of 906 women with newly diagnosed breast cancer at M.D. Anderson, we examined whether levels of selected markers of biological aging (e.g., allostatic load, telomere length, and global DNA methylation) were affected by neighborhood disadvantage. The Area Deprivation Index was used to determine the neighborhood disadvantage. Based on the median ADI at the national level, the study population was divided into low and high ADI groups. Overall, breast cancer patients from the high ADI group were more likely to be younger and non-Hispanic Black than those from the low ADI group (P < 0.001, respectively). They were also more likely to have higher grade and poorly differentiated breast tumors (P = 0.029 and 0.019, respectively). For the relationship with markers, compared to the low ADI group, high ADI group had higher median levels of allostatic load (P = 0.046) and lower median levels of global DNA methylation (P < 0.001). Compared to their counterparts, those from the high ADI group were 20% more likely to have increased allostatic load and 51% less likely to have increased levels of global DNA methylation. In summary, we observed that levels of allostatic load and global DNA methylation are influenced by neighborhood disadvantage among breast cancer patients.
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Affiliation(s)
- Jie Shen
- Departments of Family Medicine and Population Health, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Bernard F Fuemmeler
- Health Behavior and Policy, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Vanessa B Sheppard
- Health Behavior and Policy, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Harry D Bear
- Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA
| | - Renduo Song
- Departments of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Wong-Ho Chow
- Departments of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Hua Zhao
- Departments of Family Medicine and Population Health, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23284, USA.
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12
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Khosravaniardakani S, Bokov DO, Mahmudiono T, Hashemi SS, Nikrad N, Rabieemotmaen S, Abbasalizad-Farhangi M. Obesity Accelerates Leukocyte Telomere Length Shortening in Apparently Healthy Adults: A Meta-Analysis. Front Nutr 2022; 9:812846. [PMID: 35719148 PMCID: PMC9199514 DOI: 10.3389/fnut.2022.812846] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/20/2022] [Indexed: 01/07/2023] Open
Abstract
Background Shorter telomere length is associated with numerous comorbidities. Several studies have investigated the role of obesity in telomere shortening. In the current systematic review and meta-analysis, we summarized the results of studies that evaluated the association between obesity and telomere length. Methods A systematic search from Scopus, PubMed, Embase, and ProQuest electronic databases up to 19 March 2021 without language restriction was performed and after data extraction and screening, 19 manuscripts were eligible to be included in the final meta-synthesis. Results The highest category of telomere length was associated with an approximate 0.75 kg/m2 reduction in body mass index (BMI; WMD = -0.75 kg/m2; CI = -1.19, -0.31; p < 0.001; I 2 = 99.4%). Moreover, overweight/obese individuals had 0.036 kbp shorter telomere length compared with non-overweight/obese adults (WMD = -0.036; CI = -0.05, -0.02; p = 0.030; I 2 = 100%). According to the results of subgroupings, continent, age, and sample size could be possible sources of heterogeneity. Conclusion From the results, it was clear that obesity was associated with shorter telomere length. Because of the observational design of included studies, the causality inference of results should be done with caution; thus, further longitudinal studies are warranted for better inference of causal association.
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Affiliation(s)
| | - Dmitry Olegovich Bokov
- Institute of Pharmacy, Sechenov First Moscow State Medical University, Moscow, Russia
- Laboratory of Food Chemistry, Federal Research Center of Nutrition, Biotechnology and Food Safety, Moscow, Russia
| | - Trias Mahmudiono
- Department of Nutrition, Faculty of Public Health, Universitas Airlangga, Surabaya, Indonesia
| | - Seyedeh Sedigheh Hashemi
- Department of Nutrition, School of Health and Nutrition, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Negin Nikrad
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shadi Rabieemotmaen
- Department of Biology, East Tehran Branch, Islamic Azad University, Tehran, Iran
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13
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Ghoussaini R, Tamim H, Elbejjani M, Makki M, Nasreddine L, Ismaeel H, Nasrallah MP, Zgheib NK. C-peptide is a predictor of telomere shortening: A five-year longitudinal study. Front Endocrinol (Lausanne) 2022; 13:978747. [PMID: 36060975 PMCID: PMC9434344 DOI: 10.3389/fendo.2022.978747] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 07/27/2022] [Indexed: 11/28/2022] Open
Abstract
AIM Relative telomere length (RTL) predicts the development of many age-related diseases. Yet, few studies have evaluated their longitudinal effect on RTL. We investigated longitudinally the association between cardiometabolic risk factors and RTL. METHODS This was a longitudinal study with a 5-year follow-up period, based on data collected in 2014 and 2019. Of 478 participants in 2014, 198 consented to be followed-up in 2019. The associations between RTL and risk factors were analyzed using t-test, ANOVA or simple linear regression as applicable. RESULTS RTL was significantly shortened after 5 years (P<0.001). Older age (P=0.018) and gender (P=0.05) were significantly associated with shorter RTL at follow-up. Higher baseline C-peptide correlated with shorter RTL (P=0.04) and shortening of RTL (P=0.03) after 5 years. Multivariate linear regression including both age and gender revealed a significant trend for C-peptide and change in RTL after 5 years (P=0.04). Interestingly, there was a trend of shorter RTL at follow-up with diabetes, though the findings were not statistically significant. CONCLUSIONS Higher C-peptide level contributes to telomere shortening over time, suggesting that metabolic dysregulation may play a role in early aging. Further understanding of this relationship and addressing high C-peptide levels can be important to prevent premature aging.
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Affiliation(s)
- Racha Ghoussaini
- Faculty of Medicine, School of Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Hani Tamim
- Faculty of Medicine, Clinical Research Institute, American University of Beirut Medical Center, Beirut, Lebanon
- Faculty of Medicine, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
- College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Martine Elbejjani
- Faculty of Medicine, Clinical Research Institute, American University of Beirut Medical Center, Beirut, Lebanon
- Faculty of Medicine, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Maha Makki
- Faculty of Medicine, Clinical Research Institute, American University of Beirut Medical Center, Beirut, Lebanon
| | - Lara Nasreddine
- Faculty of Agricultural and Food Sciences, Department of Nutrition and Food Sciences, American University of Beirut, Beirut, Lebanon
- Vascular Medicine Program, American University of Beirut, Beirut, Lebanon
| | - Hussain Ismaeel
- Vascular Medicine Program, American University of Beirut, Beirut, Lebanon
- Faculty of Medicine, Department of Internal Medicine, Division of Cardiology, American University of Beirut, Beirut, Lebanon
| | - Mona P. Nasrallah
- Vascular Medicine Program, American University of Beirut, Beirut, Lebanon
- Faculty of Medicine, Department of Internal Medicine, Division of Endocrinology, American University of Beirut Medical Center, Beirut, Lebanon
- *Correspondence: Mona P. Nasrallah, ; Nathalie K. Zgheib,
| | - Nathalie K. Zgheib
- Vascular Medicine Program, American University of Beirut, Beirut, Lebanon
- Faculty of Medicine, Department of Pharmacology and Toxicology, American University of Beirut, Beirut, Lebanon
- *Correspondence: Mona P. Nasrallah, ; Nathalie K. Zgheib,
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Effect of Physical Activity, Smoking, and Sleep on Telomere Length: A Systematic Review of Observational and Intervention Studies. J Clin Med 2021; 11:jcm11010076. [PMID: 35011817 PMCID: PMC8745211 DOI: 10.3390/jcm11010076] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 12/14/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
Aging is a risk factor for several pathologies, restricting one’s health span, and promoting chronic diseases (e.g., cardiovascular and neurodegenerative diseases), as well as cancer. Telomeres are regions of repetitive DNA located at chromosomal ends. Telomere length has been inversely associated with chronological age and has been considered, for a long time, a good biomarker of aging. Several lifestyle factors have been linked with telomere shortening or maintenance. However, the consistency of results is hampered by some methodological issues, including study design, sample size, measurement approaches, and population characteristics, among others. Therefore, we aimed to systematically review the current literature on the effects of three relevant lifestyle factors on telomere length in human adults: physical activity, smoking, and sleep. We conducted a qualitative systematic review of observational and intervention studies using the Preferred Reporting Item for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The systematic literature search covered articles published in MEDLINE and EMBASE databases (from 2010 to 2020). A total of 1400 studies were identified; 83 were included after quality control. Although fewer sedentary activities, optimal sleep habits, and non- or ex-smoker status have been associated with less telomere shortening, several methodological issues were detected, including the need for more targeted interventions and standardized protocols to better understand how physical activity and sleep can impact telomere length and aging. We discuss the main findings and current limitations to gain more insights into the influence of these lifestyle factors on the healthy aging process.
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15
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Land use mix and leukocyte telomere length in Mexican Americans. Sci Rep 2021; 11:19742. [PMID: 34611226 PMCID: PMC8492751 DOI: 10.1038/s41598-021-99171-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/30/2021] [Indexed: 12/04/2022] Open
Abstract
It has been well-known that built environment features influence the risk of chronic diseases. However, the existing data of its relationship with telomere length, a biomarker of biological aging, is still limited, with no study available for Mexican Americans. This study investigates the relationship between several factors of the built environment with leukocyte telomere length among 5508 Mexican American adults enrolled in Mano-A-Mano, the Mexican American Cohort Study (MACS). Based on the quartile levels of telomere length, the study population was categorized into four groups, from the lowest (1st quartile) to the highest telomere length group (4th quartile). For individual built environment factors, their levels did not differ significantly across four groups. However, in the multinominal logistic regression analysis, increased Rundle’s land use mixture (LUM) and Frank’s LUM were found statistically significantly associated with increased odds of having high levels of telomere length (Rundle’s LUM: 2nd quartile: Odds ratio (OR) 1.26, 95% Confidence interval (CI) 1.07, 1.48; 3rd quartile: OR 1.25, 95% CI 1.06, 1.46; 4th quartile: OR 1.19, 95% CI 1.01, 1.41; Frank’s LUM: 2nd quartile: OR 1.34, 95% CI 1.02, 2.63; 3rd quartile: OR 1.55, 95% CI 1.04, 2.91; 4th quartile: OR 1.36, 95% CI 1.05, 2.72, respectively). The associations for Rundle’s LUM remained significant after further adjusting other non-redundant built environment factors. Finally, in stratified analysis, we found the association between Rundle’s LUM and telomere length was more evident among younger individuals (< 38 years old), women, and those with obesity, born in Mexico, having low levels of physical activity, and having low levels of acculturation than their relative counterparts. In summary, our results indicate that land use mixture may impact telomere length in leukocytes in Mexican Americans.
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Wojcicki JM, Lustig RH, Jacobs LM, Mason AE, Hartman A, Leung C, Stanhope K, Lin J, Schmidt LA, Epel ES. Longer Leukocyte Telomere Length Predicts Stronger Response to a Workplace Sugar-Sweetened Beverage Sales Ban: An Exploratory Study. Curr Dev Nutr 2021; 5:nzab084. [PMID: 34235373 PMCID: PMC8257411 DOI: 10.1093/cdn/nzab084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 03/17/2021] [Accepted: 05/19/2021] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Shorter leukocyte telomere length (LTL) is associated with increased risk of a number of metabolic diseases including insulin resistance and the development of type 2 diabetes mellitus. Shorter LTL is also associated with stress reactivity suggestive of a possible role for LTL to predict response to behavioral interventions. However, few studies have evaluated how interventions, such as weight loss or dietary changes, are associated with LTL changes or whether LTL can predict behavioral responses to interventions. OBJECTIVES We evaluated metabolic changes in relation to LTL changes and LTL at baseline in a cohort of at-risk adults in response to a 10-mo workplace-based sugar-sweetened beverage (SSB) intervention. METHODS At baseline, metabolic health and LTL measurements were assessed through standard blood draws on 212 participants. Multivariable linear regression models were used to assess changes in anthropometrics, SSB consumption, and 13 blood-based metabolic risk factors, in relation to LTL at baseline and changes in LTL. RESULTS Longer LTL at baseline was associated with decreases in SSB consumption over the 6-mo follow-up period (B = -29.67; P = 0.04). Slower LTL attrition rates were associated with decreases in waist circumference (B = -0.27; P = 0.03), HDL cholesterol (B = -0.20; P = 0.05), and apoA1 (B = -0.09; P = 0.01). CONCLUSIONS Longer LTL at baseline predicted a favorable overall response to a behavioral intervention: decreases in SSB consumption. Abdominal adiposity losses paralleled slower declines in LTL suggestive of overall health benefits, but we found differences in the relations between metabolic changes and LTL at baseline compared with LTL attrition rates. Longer LTL may be a proxy marker of a positive behavioral response.This trial was registered at clinicaltrials.gov as NCT02585336.
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Affiliation(s)
- Janet M Wojcicki
- Department of Pediatrics, University of California, San Francisco, CA, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA
| | - Robert H Lustig
- Department of Pediatrics, University of California, San Francisco, CA, USA
- Philip R Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA
| | - Laurie M Jacobs
- Philip R Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA
| | - Ashley E Mason
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
- Osher Center for Integrative Medicine, University of California, San Francisco, CA, USA
| | - Alison Hartman
- Center for Health and Community, University of California, San Francisco, CA, USA
| | - Cindy Leung
- Department of Nutritional Science, School of Public Health, University of Michigan, Ann Arbor, MI, USA
| | - Kimber Stanhope
- Department of Molecular Biosciences, University of California, Davis, CA, USA
| | - Jue Lin
- Department of Biophysics and Biochemistry, University of California, San Francisco, CA, USA
| | - Laura A Schmidt
- Philip R Lee Institute for Health Policy Studies, University of California, San Francisco, CA, USA
- Department of Anthropology, History and Social Medicine, University of California, San Francisco, CA, USA
| | - Elissa S Epel
- Department of Psychiatry and Behavioral Sciences, University of California, San Francisco, CA, USA
- Center for Health and Community, University of California, San Francisco, CA, USA
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Cheng F, Carroll L, Joglekar MV, Januszewski AS, Wong KK, Hardikar AA, Jenkins AJ, Ma RCW. Diabetes, metabolic disease, and telomere length. Lancet Diabetes Endocrinol 2021; 9:117-126. [PMID: 33248477 DOI: 10.1016/s2213-8587(20)30365-x] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 10/01/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023]
Abstract
Telomeres are regions of repetitive nucleotide sequences at the ends of chromosomes. Telomere length is a marker of DNA damage, which is often considered a biomarker for biological ageing, and has also been linked with cardiovascular disease, diabetes, and cancer. Emerging studies have highlighted the role of genetic and environmental factors, and explored the effect of modulating telomere length. We provide an overview of studies to date on diabetes and telomere length, and compare different methods and assays for evaluating telomere length and telomerase activity. We highlight the limitations of current studies and areas that warrant further research to unravel the link between diabetes and telomere length. The value of adding telomere length to clinical risk factors to improve risk prediction of diabetes and related complications also merits further investigation.
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Affiliation(s)
- Feifei Cheng
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Laboratory for Molecular Epidemiology in Diabetes, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Luke Carroll
- NHMRC Clinical Trial Centre, University of Sydney, Sydney, NSW, Australia
| | - Mugdha V Joglekar
- NHMRC Clinical Trial Centre, University of Sydney, Sydney, NSW, Australia; School of Medicine, Western Sydney University, Campbelltown, NSW, Australia
| | | | - Kwun Kiu Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Laboratory for Molecular Epidemiology in Diabetes, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Anandwardhan A Hardikar
- NHMRC Clinical Trial Centre, University of Sydney, Sydney, NSW, Australia; School of Medicine, Western Sydney University, Campbelltown, NSW, Australia.
| | - Alicia J Jenkins
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; NHMRC Clinical Trial Centre, University of Sydney, Sydney, NSW, Australia.
| | - Ronald C W Ma
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Laboratory for Molecular Epidemiology in Diabetes, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; Chinese University of Hong Kong-Shanghai Jiao Tong University Joint Research Centre in Diabetes Genomics and Precision Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; NHMRC Clinical Trial Centre, University of Sydney, Sydney, NSW, Australia.
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Aguayo L, Ogolsky B, Teran-Garcia M, Pineros-Leano M, Wiley A, Lin J, Aguirre-Pereyra R, Schwingel A. From culture to chromosomes: A mother-child dyadic study of acculturation, telomere lengths and body fat. COMPREHENSIVE PSYCHONEUROENDOCRINOLOGY 2021; 5:100029. [PMID: 35754453 PMCID: PMC9216675 DOI: 10.1016/j.cpnec.2021.100029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 01/19/2021] [Indexed: 02/02/2023] Open
Abstract
Studies suggest that telomere lengths, a biomarker of aging, could also capture the physiological weathering attributable to poor health behaviors and adverse experiences, particularly those experienced in early life. For these reasons, we propose that telomere lengths may be a pivotal biomarker for measuring the heightened susceptibility to illness resulting from the cumulative exposure to acculturation to the US culture. This binational study used an Actor–Partner Interdependence Model to test if maternal acculturation to the US moderates the cross-sectional associations of telomere lengths with percentage of body fat (PBF) among Mexican women, among their children, and the intergenerational associations of mother and children telomere lengths with each other’s PBF. Low income Mexican child–mother dyads (n = 108 dyads) were recruited to participate in this cross-sectional study in Mexico and the US. The pooled dataset included measurements of maternal acculturation to the US, mother and children’s salivary telomere lengths, PBF measured through bioelectrical impedance, and demographic characteristics. Results showed that the influences of maternal acculturation in the associations of telomere lengths with PBF were different for mothers and their children: Among mothers with higher maternal acculturation to the US, longer salivary telomere lengths were associated with lower PBF. In contrast, among mothers with lower maternal acculturation to the US, salivary telomere lengths were not associated with PBF. There were no significant associations between children’s salivary telomere lengths and PBF, and the null associations did not vary across different levels of maternal acculturation to the US. Future longitudinal studies are needed to determine whether acculturation to the US (experienced through immigration or remotely) influences the association of telomere length attrition with obesity risks among immigrant and non-immigrant Mexican children and adults. Women’s acculturation to the US modified the association of their TL with body fat. In mothers with high acculturation to the US, longer TL associated with higher body fat. In mothers with low acculturation to the US, TL were not associated with body fat. We found no evidence of intergenerational associations between TL and body fat.
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Mizuno Y, Konishi S, Goto C, Yoshinaga J, Hidaka M, Imai H. Association between nutrient intake and telomere length in Japanese female university students. Biomarkers 2021; 26:138-145. [PMID: 33393836 DOI: 10.1080/1354750x.2020.1871409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE Telomere length can be a biomarker of cumulative oxidative stress and inflammation indicating biological aging. Previous studies examined association of nutrient intake with telomere length targeting middle-aged and elderly individuals. This study examined whether dietary macro- and micronutrient intake was associated with telomere length in young females. METHODS Seventy-four Japanese young females (median (interquartile range) age was 19 (19 - 20) years) participated. We estimated their intake of nutrients (energy, protein, fat, carbohydrate, essential elements, vitamins, fatty acids, and dietary fibre) using a semi-quantitative food frequency questionnaire and measured telomere length (T/S ratio, the ratio of telomere repeat copy number (T) to single-copy gene number (S)) of DNA extracted from blood by qPCR. The association between telomere length and tertiles of nutrient intake were analysed. RESULTS The median (interquartile range) of telomere length was 0.70 (0.52 - 0.98). Vitamin A intake was positively associated with telomere length (tertile 1 vs. 2, coefficient [95% confidence interval] = 0.42 [0.12, 0.71]; tertile 1 vs. 3, coefficient [95% confidence interval] = 0.33 [0.04, 0.62]) after adjusting for covariates (age, BMI, passive smoking, and drinking). CONCLUSIONS Our findings suggest that variation in vitamin A intake might influence telomere attrition in healthy individuals.
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Affiliation(s)
- Yuki Mizuno
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shoko Konishi
- Department of Human Ecology, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Anthropology, University of Washington, Seattle, WA, USA
| | - Chiho Goto
- Department of Health and Nutrition, School of Health and Human Life, Nagoya Bunri University, Aichi, Japan
| | - Jun Yoshinaga
- Faculty of Life Sciences, Toyo University, Gunma, Japan
| | - Mikie Hidaka
- Department of Nursing, Tokyo Healthcare University, Tokyo, Japan
| | - Hideki Imai
- Faculty of Nursing, Ishikawa Prefectural Nursing University, Ishikawa, Japan
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Chen M, Xu Y, Xu J, Chancoco H, Gu J. Leukocyte Telomere Length and Bladder Cancer Risk: A Large Case–Control Study and Mendelian Randomization Analysis. Cancer Epidemiol Biomarkers Prev 2020; 30:203-209. [DOI: 10.1158/1055-9965.epi-20-0351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/22/2020] [Accepted: 09/25/2020] [Indexed: 11/16/2022] Open
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Xu J, Chang WS, Tsai CW, Bau DT, Xu Y, Davis JW, Thompson TC, Logothetis CJ, Gu J. Leukocyte telomere length is associated with aggressive prostate cancer in localized prostate cancer patients. EBioMedicine 2020; 52:102616. [PMID: 31981976 PMCID: PMC6992931 DOI: 10.1016/j.ebiom.2019.102616] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/05/2019] [Accepted: 12/18/2019] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Telomeres play important roles in cancer initiation and progression. The aim of this study is to investigate whether leukocyte telomere length (LTL) is associated with aggressive prostate cancer (PCa). METHODS We measured relative LTL in a cohort of 1,889 white PCa patients who were treated and followed up at the University of Texas MD Anderson Cancer Center and assessed its associations with aggressive disease characteristics at diagnosis and biochemical recurrence (BCR) after active treatments (radical prostatectomy and radiotherapy). We further used a Mendelian randomization (MR) approach to compute a weighted genetic risk score (GRS) predictive of LTL using 10 established LTL-associated genetic variants and determined whether this GRS is associated with aggressive PCa. FINDINGS LTL was significantly shorter in patients with higher Gleason scores at diagnosis. Dichotomized at the median value of LTL, patients with short LTL exhibited a 2.74-fold (95% confidence interval, 1.79-4.18, P = 3.11 × 10-6) increased risk of presenting with GS≥8 disease than those with long LTL in multivariate logistic regression analysis. Moreover, shorter LTL was significantly associated with an increased risk of BCR (hazard ratio = 1.53, 95% confidence interval, 1.01-2.34) compared to longer LTL in localized patients receiving prostatectomy or radiotherapy with a significant dose-response association (P for trend = 0.017) in multivariate Cox proportional hazards regression analysis. In MR analysis, genetically predicted short LTL was also associated with an increased risk of BCR (HR=1.73, 95% CI, 1.08-2.78). INTERPRETATION Our results showed for the first time that LTL was shorter in PCa patients with high Gleason scores and that short LTL and genetically predicted short LTL are associated with worse prognosis in PCa patients receiving prostatectomy or radiotherapy. FUNDING Cancer Prevention and Research Institute of Texas (CPRIT) grant (RP140556), National Cancer Institute Specialized Program of Research Excellence (SPORE) grant (CA140388), and MD Anderson Cancer Center start-up fund.
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Affiliation(s)
- Junfeng Xu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - Wen-Shin Chang
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States; Terry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan
| | - Chia-Wen Tsai
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States; Terry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan
| | - Da-Tian Bau
- Terry Fox Cancer Research Laboratory, China Medical University Hospital, Taichung, Taiwan
| | - Yifan Xu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - John W Davis
- Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - Timothy C Thompson
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - Christopher J Logothetis
- Department of Genitourinary Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States
| | - Jian Gu
- Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, United States.
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Araújo Carvalho AC, Tavares Mendes ML, da Silva Reis MC, Santos VS, Tanajura DM, Martins-Filho PRS. Telomere length and frailty in older adults-A systematic review and meta-analysis. Ageing Res Rev 2019; 54:100914. [PMID: 31170457 DOI: 10.1016/j.arr.2019.100914] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 05/29/2019] [Accepted: 05/31/2019] [Indexed: 12/29/2022]
Abstract
Telomere shortening has been proposed as a potentially useful biomarker of human ageing and age-related morbidity and mortality. We performed a systematic review and meta-analysis to summarize results from individual studies on the telomere length according to the frailty status and frailty index in older adults. We searched the PubMed, SCOPUS and Web of Science databases to identify studies that evaluated the telomere length in frail and non-frail older adults and the relationship between telomere length and frailty index score. We used the base pairs (bp) as a measure of the telomere length. Summary estimates were calculated using random-effects models. Nine studies were included in the present systematic review and a total of 10,079 older adults were analyzed. We found that the frail older adults (n = 355) had shorter telomeres than the non-frail (n = 1894) (Standardized Mean Difference [SMD] -0.41; 95% CI -0.73 to -0.09; P = 0.01; I2 = 82%). Significant differences in telomere length between frail and non-frail older adults were identified in Hispanic (SMD -1.31; 95% CI -1.71 to -0.92; P < 0.0001; I2 = 0%) but not in Non-Hispanic countries (SMD -0.13; 95% CI -0.26 to 0.00; P = 0.06; I2 = 0%). Similar results were found in the adjusted meta-analysis (SMD -0.56; 95% -1.12 to 0.00; P = 0.05; I2 = 85%). A significant but weak relationship was found between telomere length and frailty index analyzing 8244 individuals (SMD -0.06; 95% IC -0.10 to 0.01; P = 0.01; I2 = 0%). The current available evidence suggests that telomere length may be not a meaningful biomarker for frailty. Because the potential influence of ethnicity in shortening of telomeres and decline in physiologic reserves associated with aging, additional multiethnic studies are needed.
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Khan RJ, Gebreab SY, Gaye A, Crespo PR, Xu R, Davis SK. Associations of smoking indicators and cotinine levels with telomere length: National Health and Nutrition Examination Survey. Prev Med Rep 2019; 15:100895. [PMID: 31193582 PMCID: PMC6536775 DOI: 10.1016/j.pmedr.2019.100895] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/06/2019] [Accepted: 05/12/2019] [Indexed: 12/16/2022] Open
Abstract
The influence of smoking exposure on telomere length with a focus on the impact of race has rarely been discussed. We performed a cross sectional analysis into the associations of smoking indicators with leukocyte telomere length (LTL) by race among 5864 nationally representative sample of US adults (≥20 years). Data from 1999 to 2002 National Health and Nutrition Examination Survey was used for the analysis. Smoking indicators were assessed by interviews and serum cotinine levels. LTL was quantified by polymerase chain reaction. Multiple linear regressions were used to assess the association with adjustment for covariates, sample weights and design effects separately for Whites, Blacks and Mexican Americans. The intensity of smoking, measured by the average number of cigarettes consumed per day, was negatively associated with LTL among Whites (β: −3.87, 95% CI: −5.98 to −1.21) and among Blacks (β: −15.46, 95% CI: −29.79 to −2.12) participants. Compared with cotinine level < 0.05 ng/ml, cotinine level ≥3 ng/ml was associated with shorter LTL (β: −77.92, 95% CI = −143.05 to −11.70) among Whites, but not among Blacks. We found increased number of cigarette consumption to be associated with shorter LTL in both Blacks and Whites, indicating that the impact of smoking on life-shortening diseases could partly be explained by telomere biology. Increased cotinine concentration however, was associated with shorter LTL only among Whites, not among Blacks. This differential relationship that we observed may have implications in interpreting cotinine as an objective biomarker of smoking exposure across races and warrant additional prospective investigation. Higher cigarette consumption was related to shorter telomere in Blacks and Whites. The impact of smoking on diseases could partly be explained by telomere biology. Cotinine concentration was associated with reduced telomere length only among Whites. We observed a differential impact of biomarker cotinine on telomere length by race. This questions cotinine's role as an objective biomarker of smoking exposure across races.
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Affiliation(s)
- Rumana J. Khan
- National Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD
- Corresponding author at: National Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit, 10 Center Drive, Room 7N316 MSC 1644, Bethesda, MD 20892
| | - Samson Y. Gebreab
- National Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD
| | - Amadou Gaye
- National Human Genome Research Institute, Metabolic, Cardiovascular and Inflammatory Disease Genomics Branch, Cardiovascular Disease Section, Bethesda, MD
| | - Pia R. Crespo
- National Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD
| | - Ruihua Xu
- National Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD
| | - Sharon K. Davis
- National Human Genome Research Institute, Social and Behavioral Research Branch, Social Epidemiology Research Unit , Bethesda, MD
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Telomere Length in Workers Was Effected by Omethoate Exposure, GSTM1 Deletion, Interaction Between Smoking and GSTP1 Polymorphisms. J Occup Environ Med 2019; 61:e19-e23. [DOI: 10.1097/jom.0000000000001503] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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