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Barbieri MA, Ferraro AA, Simões VMF, Goldani MZ, Cardoso VC, Moura da Silva AA, Bettiol H. Cohort Profile: The 1978-79 Ribeirao Preto (Brazil) birth cohort study. Int J Epidemiol 2021; 51:27-28g. [PMID: 34564724 DOI: 10.1093/ije/dyab190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Marco Antônio Barbieri
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | | | - Marcelo Zubaran Goldani
- Department of Pediatrics, Faculty of Medicine, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Viviane Cunha Cardoso
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Heloisa Bettiol
- Department of Pediatrics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
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2
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Grunnet LG, Pilgaard K, Alibegovic A, Jensen CB, Hjort L, Ozanne SE, Bennett M, Vaag A, Brøns C. Leukocyte telomere length is associated with elevated plasma glucose and HbA1c in young healthy men independent of birth weight. Sci Rep 2019; 9:7639. [PMID: 31113969 PMCID: PMC6529491 DOI: 10.1038/s41598-019-43387-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 04/23/2019] [Indexed: 01/24/2023] Open
Abstract
Telomeres are protein-bound regions of repetitive nucleotide sequences (TTAGGG) at the end of human chromosomes, and their length is a marker of cellular aging. Intrauterine growth restriction is associated with shorter blood cell telomeres at birth and individuals with type 2 diabetes have shorter telomeres. Individuals with a low birth weight (LBW) have an increased risk of metabolic disease and type 2 diabetes. Therefore, we aimed to investigate the relationship between birth weight and telomere length and the association between birth weight, telomere length and cardiometabolic phenotype in adulthood. Young, healthy men with LBW (n = 55) and normal birth weight (NBW) (n = 65) were examined including blood pressure, blood samples and body composition. Leukocyte telomere length was determined using a high-throughput qPCR method. The LBW men were more insulin resistant as determined by the HOMA-IR index. There was no difference in telomere length between LBW and NBW subjects. When adjusting for birth weight and cohort effect, significant negative associations between telomere length and fasting glucose (P = 0.003) and HbA1c (P = 0.0008) were found. In conclusion, no significant difference in telomere length was found between LBW and NBW men. The telomere length was negatively associated with glucose concentrations and HbA1c levels within the normal non-diabetic range independent of birth weight.
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Affiliation(s)
- L G Grunnet
- Department of Endocrinology, Diabetes & Metabolism, Rigshospitalet, Copenhagen, Denmark. .,The Danish Diabetes Academy, Odense, Denmark.
| | - K Pilgaard
- Nordsjællands Hospital, Hillerød, Denmark
| | - A Alibegovic
- Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | | | - L Hjort
- Department of Endocrinology, Diabetes & Metabolism, Rigshospitalet, Copenhagen, Denmark
| | - S E Ozanne
- University of Cambridge Metabolic Research Laboratories and MRC metabolic Diseases Unit, Cambridge, UK
| | - M Bennett
- Division of Cardiovascular Medicine, Addenbrooke's Hospital, Cambridge, UK
| | - A Vaag
- Department of Endocrinology, Diabetes & Metabolism, Rigshospitalet, Copenhagen, Denmark.,Cardiovascular and Metabolic Disease (CVMD) Translational Medicine Unit, Early Clinical Development, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden
| | - C Brøns
- Department of Endocrinology, Diabetes & Metabolism, Rigshospitalet, Copenhagen, Denmark
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Slykerman RF, Joglekar MV, Hardikar AA, Satoor SN, Thompson JMD, Jenkins A, Mitchell EA, Murphy R. Maternal stress during pregnancy and small for gestational age birthweight are not associated with telomere length at 11 years of age. Gene 2019; 694:97-101. [PMID: 30738962 DOI: 10.1016/j.gene.2019.01.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 12/19/2018] [Accepted: 01/22/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Previous studies indicate that low birth weight and exposure to maternal stress during pregnancy may result in shortened telomeres in infants. Shorter telomere length has in turn been linked with accelerated ageing and with age-related diseases. This study aimed to investigate the association between pregnancy and birth factors and relative telomere length in offspring at 11 years of age. METHODS Participants were aged 11 years enrolled in the Auckland Birthweight Collaborative Study at birth (n = 380). Half of the children were born small for gestational age (SGA = birthweight ≤ 10th percentile) and half were appropriate for gestational age (AGA = birthweight > 10th percentile). Maternal stress during pregnancy was assessed using the Perceived Stress Scale. Relative leukocyte telomere length (RTL) in leukocytes was measured at 11 years of age using quantitative real-time PCR. RESULTS RTL was normally distributed (mean = 3.78, SD = 1.05). There were no significant associations between RTL at age 11 years and birthweight, sex, maternal smoking, maternal stress during pregnancy or maternal pre-pregnancy body mass index. CONCLUSION At age 11 years, RTL did not differ between children by birthweight or pregnancy-related stressors. Further telomere-related studies in newborns, children and adolescents are merited to increase knowledge of potential telomere modulating factors.
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Affiliation(s)
- Rebecca F Slykerman
- Department of Psychological Medicine, University of Auckland, Auckland 1142, New Zealand.
| | - Mugdha V Joglekar
- NHMRC CTC, University of Sydney, Sydney, New South Wales 2006, Australia
| | | | - Sarang N Satoor
- NHMRC CTC, University of Sydney, Sydney, New South Wales 2006, Australia
| | - John M D Thompson
- Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland 1142, New Zealand
| | - Alicia Jenkins
- NHMRC CTC, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Edwin A Mitchell
- Department of Paediatrics: Child and Youth Health, University of Auckland, Auckland 1142, New Zealand
| | - Rinki Murphy
- Department of Medicine, University of Auckland, Auckland 1142, New Zealand
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Guyatt AL, Rodriguez S, Gaunt TR, Fraser A, Anderson EL. Early life adiposity and telomere length across the life course: a systematic review and meta-analysis. Wellcome Open Res 2018; 2:118. [PMID: 30542661 PMCID: PMC6259597 DOI: 10.12688/wellcomeopenres.13083.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2018] [Indexed: 12/20/2022] Open
Abstract
Background: The relationship between adiposity at birth and in childhood, and telomere length is yet to be determined. We aimed to systematically review and meta-analyse the results of studies assessing associations between neonatal and later childhood adiposity, and telomere length. Methods: We searched Medline, EMBASE and PubMed for studies reporting associations between adiposity measured in the neonatal period or later childhood/adolescence, and leucocyte telomere length, measured at any age via quantitative polymerase chain reaction, or terminal restriction fragment analysis, either cross-sectionally, or longitudinally. Papers published before April 2017 were included. Results: Out of 230 abstracts assessed, 23 papers (32 estimates) were retained, from which 19 estimates were meta-analysed (15 cross-sectional, four longitudinal). Of the 15 cross-sectional estimates, seven reported on neonates: four used binary exposures of small-for-gestational-age vs. appropriate-for-gestational age (or appropriate- and large-for-gestational age), and three studied birth weight continuously. Eight estimates reported on later childhood or adolescent measures; five estimates were from studies of binary exposures (overweight/obese vs. non-obese children), and three studies used continuous measures of body mass index. All four longitudinal estimates were of neonatal adiposity, with two estimates for small-for-gestational-age vs. appropriate-for-gestational age neonates, and two estimates of birth weight studied continuously, in relation to adult telomere (49-61 years). There was no strong evidence of an association between neonatal or later childhood/adolescent adiposity, and telomere length. However, between study heterogeneity was high, and there were few combinable studies. Conclusions: Our systematic review and meta-analysis found no strong evidence of an association between neonatal or later childhood or adolescent adiposity and telomere length.
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Affiliation(s)
- Anna L. Guyatt
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Santiago Rodriguez
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Tom R. Gaunt
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Abigail Fraser
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
- NIHR Biomedical Research Centre at the University Hospitals Bristol NHS Foundation Trust, University of Bristol, Bristol, UK
| | - Emma L. Anderson
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
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Guyatt AL, Rodriguez S, Gaunt TR, Fraser A, Anderson EL. Early life adiposity and telomere length across the life course: a systematic review and meta-analysis. Wellcome Open Res 2017; 2:118. [PMID: 30542661 PMCID: PMC6259597 DOI: 10.12688/wellcomeopenres.13083.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/27/2018] [Indexed: 11/08/2023] Open
Abstract
Background: The relationship between adiposity at birth and in childhood, and telomere length is yet to be determined. We aimed to systematically review and meta-analyse the results of studies assessing associations between neonatal and childhood adiposity, and telomere length. Methods: We searched Medline, EMBASE and PubMed for studies reporting associations between adiposity measured in the neonatal period or childhood, and leucocyte telomere length, measured at any age via quantitative polymerase chain reaction, or terminal restriction fragment analysis, either cross-sectionally, or longitudinally. Papers published before April 2017 were included. Results: Out of 230 abstracts assessed, 23 papers (32 estimates) were retained, from which 19 estimates were meta-analysed (15 cross-sectional, four longitudinal). Of the 15 cross-sectional estimates, seven reported on neonates: four used binary exposures of small-for-gestational-age vs. appropriate-for-gestational age (or appropriate- and large-for-gestational age), and three studied birth weight continuously. Eight estimates reported on childhood measures; five estimates were from studies of binary exposures (overweight/obese vs. non-obese children), and three studies used continuous measures of body mass index. All four longitudinal estimates were of neonatal adiposity, with two estimates for small-for-gestational-age vs. appropriate-for-gestational age neonates, and two estimates of birth weight studied continuously, in relation to adult telomere (49-61 years). There was no strong evidence of an association between neonatal or childhood adiposity, and telomere length. However, between study heterogeneity was high, and there were few combinable studies. Conclusions: Our systematic review and meta-analysis found no strong evidence of an association between neonatal or childhood adiposity and telomere length.
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Affiliation(s)
- Anna L. Guyatt
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Santiago Rodriguez
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Tom R. Gaunt
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Abigail Fraser
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
- NIHR Biomedical Research Centre at the University Hospitals Bristol NHS Foundation Trust, University of Bristol, Bristol, UK
| | - Emma L. Anderson
- MRC Integrative Epidemiology Unit, Population Health Sciences, University of Bristol, Bristol, UK
- Population Health Sciences, University of Bristol, Bristol, UK
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