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Lin F, Luo J, Zhu Y, Liang H, Li D, Han D, Chang Q, Pan P, Zhang Y. Association Between Adverse Early Life Factors and Telomere Length in Middle and Late Life. Innov Aging 2024; 8:igae070. [PMID: 39350941 PMCID: PMC11441326 DOI: 10.1093/geroni/igae070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Indexed: 10/04/2024] Open
Abstract
Background and Objectives Telomere length (TL) has been acknowledged as biomarker of biological aging. Numerous investigations have examined associations between individual early life factors and leukocyte TL; however, the findings were far from consistent. Research Design and Methods We evaluated the relationship between individual and combined early life factors and leukocytes TL in middle and late life using data from the UK Biobank. The early life factors (eg, maternal smoking, breastfeeding, birth weight, and comparative body size and height to peers at age 10) were measured. The regression coefficients (β) and 95% confidence interval (CI) were applied to assess the link of the early life factors and TL in adulthood. Flexible parametric survival models incorporated age to calculate the relationship between early life factors and life expectancy. Results Exposure to maternal smoking, lack of breastfeeding, low birth weight, and shorter height compared to peers at age 10 were identified to be associated with shorter TL in middle and older age according to the large population-based study with 197 504 participants. Individuals who experienced more than 3 adverse early life factors had the shortest TL in middle and late life (β = -0.053; 95% CI = -0.069 to -0.038; p < .0001), as well as an average of 0.54 years of life loss at the age of 45 and 0.49 years of life loss at the age of 60, compared to those who were not exposed to any early life risk factors. Discussion and Implications Early life factors including maternal smoking, non-breastfed, low birth weight, and shorter height compared to peers at age 10 were associated with shorter TL in later life. In addition, an increased number of the aforementioned factors was associated with a greater likelihood of shorter TL in adulthood, as well as a reduced life expectancy.
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Affiliation(s)
- Fengyu Lin
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiefeng Luo
- Department of Gynecology and Obstetrics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yiqun Zhu
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha, Hunan, China
| | - Huaying Liang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Dianwu Li
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Duoduo Han
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qinyu Chang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Pinhua Pan
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- FuRong Laboratory, Central South University, Changsha, Hunan, China
| | - Yan Zhang
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, Hunan, China
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Prasad A, Lin J, Jelliffe-Pawlowski L, Coleman-Phox K, Rand L, Wojcicki JM. Sub-optimal maternal gestational gain is associated with shorter leukocyte telomere length at birth in a predominantly Latinx cohort of newborns. Matern Health Neonatol Perinatol 2023; 9:14. [PMID: 37919818 PMCID: PMC10623801 DOI: 10.1186/s40748-023-00167-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/20/2023] [Indexed: 11/04/2023] Open
Abstract
OBJECTIVE To assess in utero exposures associated with leukocyte telomere length (LTL) at birth and maternal LTL in a primarily Latinx birth cohort. STUDY DESIGN Mothers and newborns were recruited postnatally before 24 h of life. Newborn LTL was collected via heelstick at birth and maternal LTL was collected postnatally. LTL was determined by quantitative PCR. Using a longitudinal design, we evaluated associations between neonatal and maternal LTL and appropriate maternal gestational gain as indicated by the American College of Obstetrics and Gynecology (ACOG). RESULT Mean infant LTL was 2.02 ± 0.30 T/S (n = 386) and maternal LTL was 1.54 ± 0.26 T/S (n = 58). Independent risk factors for shorter LTL at birth included longer gestational duration (Coeff:-0.03, 95%CI: -0.05-0.01;p < 0.01) and maternal gestational weight gain below ACOG recommendations (Coeff:-0.10, 95%CI: -0.18 - -0.02; p = 0.01). CONCLUSION Gestational weight gain below ACOG recommendations may adversely impact neonatal health in Latinx infants as indicated by shorter LTL at birth.
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Affiliation(s)
- Apurva Prasad
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California, San Francisco, USA
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, USA
| | - Laura Jelliffe-Pawlowski
- Preterm Birth Initiative, University of California, San Francisco, USA
- Department of Epidemiology and Biostatistics, University of California, San Francisco, USA
| | - Kimberley Coleman-Phox
- Department of Obstetrics, Gynecology and Reproductive Health Sciences, University of California, San Francisco, USA
| | - Larry Rand
- Department of Obstetrics, Gynecology and Reproductive Health Sciences, University of California, San Francisco, USA
| | - Janet M Wojcicki
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of California, San Francisco, USA.
- Department of Epidemiology and Biostatistics, University of California, San Francisco, USA.
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Wan B, Ma N, Lv C. Identifying effects of genetic obesity exposure on leukocyte telomere length using Mendelian randomization. PeerJ 2023; 11:e15085. [PMID: 36967999 PMCID: PMC10038084 DOI: 10.7717/peerj.15085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/26/2023] [Indexed: 03/29/2023] Open
Abstract
Background Observational studies have shown that obesity is closely associated with leukocyte telomere length (LTL). However, the causal relationship between obesity and LTL remains unclear. This study investigated the causal relationship between obesity and LTL through the Mendelian randomization approach. Materials and Methods The genome-wide association study (GWAS) summary data of several studies on obesity-related traits with a sample size of more than 600,000 individuals were extracted from the UK Biobank cohort. The summary-level data of LTL-related GWAS (45 6,717 individuals) was obtained from the IEU Open GWAS database. An inverse-variance-weighted (IVW) algorithm was utilized as the primary MR analysis method. Sensitivity analyses were conducted via MR-Egger regression, IVW regression, leave-one-out test, MR-pleiotropy residual sum, and outlier methods. Results High body mass index was correlated with a short LTL, and the odds ratio (OR) was 0.957 (95% confidence interval [CI] 0.942-0.973, p = 1.17E-07). The six body fat indexes (whole body fat mass, right leg fat mass, left leg fat mass, right arm fat mass, left arm fat mass, and trunk fat mass) were consistently inversely associated with LTL. Multiple statistical sensitive analysis approaches showed that the adverse effect of obesity on LTL was steady and dependable. Conclusion The current study provided robust evidence supporting the causal assumption that genetically caused obesity is negatively associated with LTL. The findings may facilitate the formulation of persistent strategies for maintaining LTL.
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Affiliation(s)
- Bangbei Wan
- Department of Urology, Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, Haikou, Hainan, China
- Reproductive Medical Center, Hainan Women and Children’s Medical Center, Haikou, Hainan, China
| | - Ning Ma
- Reproductive Medical Center, Hainan Women and Children’s Medical Center, Haikou, Hainan, China
| | - Cai Lv
- Department of Urology, Haikou Affiliated Hospital of Central South University, Xiangya School of Medicine, Haikou, Hainan, China
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Zafirovic S, Macvanin M, Stanimirovic J, Obradovic M, Radovanovic J, Melih I, Isenovic E. Association Between Telomere Length and Cardiovascular Risk: Pharmacological Treatments Affecting Telomeres and Telomerase Activity. Curr Vasc Pharmacol 2022; 20:465-474. [PMID: 35986545 DOI: 10.2174/1570161120666220819164240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 01/25/2023]
Abstract
Telomeres represent the ends of chromosomes, and they are composed of an extensive number of - TTAGGG nucleotide sequence repeats in humans. Telomeres prevent chromosome degradation, participate in stabilization, and regulate the DNA repair system. Inflammation and oxidative stress have been identified as important processes causing cardiovascular disease and accelerating telomere shortening rate. This review investigates the link between telomere length and pathological vascular conditions from experimental and human studies. Also, we discuss pharmacological treatments affecting telomeres and telomerase activity.
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Affiliation(s)
- Sonja Zafirovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mirjana Macvanin
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Julijana Stanimirovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Milan Obradovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena Radovanovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Irena Melih
- Faculty of Stomatology, Pancevo, University Business Academy, 21000 Novi Sad, Serbia
| | - Esma Isenovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Kertes DA, Leri J, Duan K, Tarrence J, Browning C, Pickler R, Ford J. Demographic and health predictors of telomere length during adolescence. Dev Psychobiol 2022; 64:e22311. [PMID: 36282763 PMCID: PMC9749139 DOI: 10.1002/dev.22311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/31/2022] [Accepted: 06/03/2022] [Indexed: 01/27/2023]
Abstract
Telomere length (TL) is proposed to play a mechanistic role in how the exposome affects health outcomes. Little is known about TL during adolescence, a developmental period during which precursors of adult-onset health problems often emerge. We examined health and demographic sources of variation in TL in 899 youth aged 11-17. Demographic and health information included age, sex, race, household income, caregiver age and marital status, youth tobacco exposure, body mass index, pubertal status, health problems, medication use, and season of data collection. Genomic DNA was extracted from saliva, and T/S ratios were computed following qPCR. Age, race, season of data collection, and household income were associated with the telomere to single copy (T/S) ratio. We found that T/S ratios were larger at younger ages, among Black youth, for saliva collected during autumn and winter, and among households with higher income. Analyses stratified by race revealed that the association between age and T/S ratio was present for Black youth, that season of collection was present across races, but that family demographic associations with T/S ratio varied by race. The results provide information for future telomere research and highlight adolescence as a potentially important developmental phase for racial disparities in telomere shortening and health.
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Affiliation(s)
- Darlene A. Kertes
- Department of Psychology, University of Florida, Gainesville, Florida, USA,Genetics Institute, University of Florida, Gainesville, Florida, USA
| | - John Leri
- Department of Psychology, University of Florida, Gainesville, Florida, USA
| | - Ke Duan
- Department of Psychology, University of Florida, Gainesville, Florida, USA
| | - Jake Tarrence
- Department of Sociology, Ohio State University, Columbus, Ohio, USA
| | | | - Rita Pickler
- College of Nursing, Ohio State University, Columbus, Ohio, USA
| | - Jodi Ford
- College of Nursing, Ohio State University, Columbus, Ohio, USA
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Kahrizi MS, Patra I, Jalil AT, Achmad H, Alesaeidi S, Al-Gazally ME, Alesaeidi S. Leukocyte telomere length and obesity in children and adolescents: A systematic review and meta-analysis. Front Genet 2022; 13:861101. [PMID: 36160016 PMCID: PMC9490371 DOI: 10.3389/fgene.2022.861101] [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: 01/24/2022] [Accepted: 07/20/2022] [Indexed: 11/24/2022] Open
Abstract
Background: Several studies have revealed the negative effects of adiposity on telomere length shortening. However, the results of the studies assessing the negative relationship between obesity and leukocyte telomere length (LTL) are not consistent. This systematic review and meta-analysis are aimed to pool the results of articles assessing the relationship between obesity and LTL among children and adolescents. Methods: To retrieve the related studies, four online databases including PubMed, Embase, ProQuest, and Scopus were searched until May 2022. Observational studies evaluating the relationship between obesity and LTL among apparently healthy children and adolescents (aged ≤18 years) were included in the study. We considered the studies that had reported a mean ± standard deviation of LTL. The random-effects model was used to assess the pooled weighted mean difference (WMD) and a 95% confidence interval (CI). Results: The search yielded seven studies from an initial 3,403 records identified. According to the results of seven articles with 4,546 participants, obesity was associated with LTL shortening among children and adolescents (WMD = -0.081; 95% CI: -0.137 to -0.026; p = 0.004; I2 = 99.9%). Also, no publication bias was observed. According to the results of subgrouping, significant results were only attributed to the studies conducted in Europe, with high quality scores, among overweight and obese adolescents, with a baseline LTL lower than 1, and performed in community-based school settings. Also, according to the subgrouping and meta-regression results, the obesity definition criteria and baseline LTL were the possible sources of between-study heterogeneity. Conclusion: We observed shorter LTL among overweight and obese children and adolescents. To obtain more reliable results, further longitudinal prospective studies with large sample sizes and more consistent and accurate definitions of obesity are required.
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Affiliation(s)
| | - Indrajit Patra
- An Independent Researcher, PhD from NIT Durgapur, Durgapur, West Bengal, India
| | | | - Harun Achmad
- Department of Pediatric Dentistry, Faculty of Dentistry, Hasanuddin University, Makassar, Indonesia
| | - Samira Alesaeidi
- Department of Internal Medicine and Rheumatology, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Sogol Alesaeidi
- Department of Pediatric Medicine, Imam Hossein Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
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Telomeres: New players in immune-mediated inflammatory diseases? J Autoimmun 2021; 123:102699. [PMID: 34265700 DOI: 10.1016/j.jaut.2021.102699] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/02/2021] [Accepted: 07/05/2021] [Indexed: 12/21/2022]
Abstract
Telomeres are repetitive DNA sequences located at the ends of linear chromosomes that preserve the integrity and stability of the genome. Telomere dysfunctions due to short telomeres or altered telomere structures can ultimately lead to replicative cellular senescence and chromosomal instability, both mechanisms being hallmarks of ageing. Chronic inflammation, oxidative stress and finally telomere length (TL) dynamics have been shown to be involved in various age-related non-communicable diseases (NCDs). Immune-mediated inflammatory diseases (IMIDs), including affections such as inflammatory bowel disease, psoriasis, rheumatoid arthritis, spondyloarthritis and uveitis belong to this group of age-related NCDs. Although in recent years, we have witnessed the emergence of studies in the literature linking these IMIDs to TL dynamics, the causality between these diseases and telomere attrition is still unclear and controversial. In this review, we provide an overview of available studies on telomere dynamics and discuss the utility of TL measurements in immune-mediated inflammatory diseases.
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