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Zheng X, Chen Y, Lin SQ, Liu CN, Liu T, Liu CA, Wang ZW, Liu XY, Shi JY, Bu ZT, Xie HL, Zhang HY, Zhao H, Li SQ, Li XR, Deng L, Shi HP. Exploring the impact of women-specific reproductive factors on phenotypic aging and the role of life's essential 8. Nutr J 2024; 23:96. [PMID: 39160526 PMCID: PMC11334610 DOI: 10.1186/s12937-024-00999-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 08/08/2024] [Indexed: 08/21/2024] Open
Abstract
BACKGROUND Aging is an inevitable biological process. Accelerated aging renders adults more susceptible to chronic diseases and increases their mortality rates. Previous studies have reported the relationship between lifestyle factors and phenotypic aging. However, the relationship between intrinsic factors, such as reproductive factors, and phenotypic aging remains unclear. METHODS This study utilized data from the National Health and Nutrition Examination Survey (NHANES), spanning from 1999 to 2010 and 2015-2018, with 14,736 adult women. Random forest imputation was used to handle missing covariate values in the final cohort. Weighted linear regression was utilized to analyze the relationship between women-specific reproductive factors and PhenoAgeAccel. Considering the potential impact of menopausal status on the results, additional analyses were conducted on premenopausal and postmenopausal participants. Additionally, the Life's Essential 8 (LE8) was used to investigate the impact of healthy lifestyle and other factors on the relationship between women-specific reproductive factors and PhenoAgeAccel. Stratified analyses were conducted based on significant interaction p-values. RESULTS In the fully adjusted models, delayed menarche and gynecological surgery were associated with increased PhenoAgeAccel, whereas pregnancy history were associated with a decrease. Additionally, early or late ages of menopause, first live birth, and last live birth can all negatively impact PhenoAgeAccel. The relationship between women-specific reproductive factors and PhenoAgeAccel differs between premenopausal and postmenopausal women. High LE8 scores positively impacted the relationship between certain reproductive factors (age at menarche, age at menopause, age at first live birth, and age at last live birth) and phenotypic age acceleration. Stratified analysis showed significant interactions for the following variables: BMI with age at menarche, pregnancy history, and age at menopause; ethnicity with age at menopause, age at first live birth, and parity; smoking status with use of contraceptive pills and gynecologic surgery; hypertension with use of contraceptive pills, pregnancy history, and age at menopause. CONCLUSION Delayed menarche, gynecological surgery, and early or late ages of menopause, first live birth, and last live birth are associated with accelerated phenotypic aging. High LE8 score may alleviate the adverse effects of reproductive factors on phenotypic aging.
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Affiliation(s)
- Xin Zheng
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Yue Chen
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
- The Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Shi-Qi Lin
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
- The Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Chen-Ning Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, 519000, China
| | - Tong Liu
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Chen-An Liu
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Zi-Wen Wang
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Xiao-Yue Liu
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Jin-Yu Shi
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Zhao-Ting Bu
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Hai-Lun Xie
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - He-Yang Zhang
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Hong Zhao
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Shu-Qun Li
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Xiang-Rui Li
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China
| | - Li Deng
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China.
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China.
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China.
| | - Han-Ping Shi
- Department of Gastrointestinal Surgery, Department of Clinical Nutrition, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China.
- National Clinical Research Center for Geriatric Diseases, Xuanwu Hospital, Capital Medical University, Beijing, China.
- Key Laboratory of Cancer, FSMP for State Market Regulation, Beijing, China.
- Laboratory for Clinical Medicine, Capital Medical University, Beijing, China.
- The Second Affiliated Hospital, Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, China.
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de Lange AMG, Leonardsen EH, Barth C, Schindler LS, Crestol A, Holm MC, Subramaniapillai S, Hill D, Alnæs D, Westlye LT. Parental status and markers of brain and cellular age: A 3D convolutional network and classification study. Psychoneuroendocrinology 2024; 165:107040. [PMID: 38636355 DOI: 10.1016/j.psyneuen.2024.107040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/20/2024]
Abstract
Recent research shows prominent effects of pregnancy and the parenthood transition on structural brain characteristics in humans. Here, we present a comprehensive study of how parental status and number of children born/fathered links to markers of brain and cellular ageing in 36,323 UK Biobank participants (age range 44.57-82.06 years; 52% female). To assess global effects of parenting on the brain, we trained a 3D convolutional neural network on T1-weighted magnetic resonance images, and estimated brain age in a held-out test set. To investigate regional specificity, we extracted cortical and subcortical volumes using FreeSurfer, and ran hierarchical clustering to group regional volumes based on covariance. Leukocyte telomere length (LTL) derived from DNA was used as a marker of cellular ageing. We employed linear regression models to assess relationships between number of children, brain age, regional brain volumes, and LTL, and included interaction terms to probe sex differences in associations. Lastly, we used the brain measures and LTL as features in binary classification models, to determine if markers of brain and cellular ageing could predict parental status. The results showed associations between a greater number of children born/fathered and younger brain age in both females and males, with stronger effects observed in females. Volume-based analyses showed maternal effects in striatal and limbic regions, which were not evident in fathers. We found no evidence for associations between number of children and LTL. Classification of parental status showed an Area under the ROC Curve (AUC) of 0.57 for the brain age model, while the models using regional brain volumes and LTL as predictors showed AUCs of 0.52. Our findings align with previous population-based studies of middle- and older-aged parents, revealing subtle but significant associations between parental experience and neuroimaging-based surrogate markers of brain health. The findings further corroborate results from longitudinal cohort studies following parents across pregnancy and postpartum, potentially indicating that the parenthood transition is associated with long-term influences on brain health.
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Affiliation(s)
- Ann-Marie G de Lange
- Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Department of Psychology, University of Oslo, Oslo, Norway; Department of Psychiatry, University of Oxford, Oxford, UK.
| | | | - Claudia Barth
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Louise S Schindler
- Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Department of Psychology, University of Oslo, Oslo, Norway; Department of Psychiatry, University of Oxford, Oxford, UK
| | - Arielle Crestol
- Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway
| | | | - Sivaniya Subramaniapillai
- Department of Clinical Neurosciences, Lausanne University Hospital (CHUV) and University of Lausanne, Lausanne, Switzerland; Department of Psychology, University of Oslo, Oslo, Norway
| | - Dónal Hill
- Swiss Data Science Center (SDSC), EPFL-ETHZ, Switzerland
| | - Dag Alnæs
- Department of Psychology, University of Oslo, Oslo, Norway; Centre for Precision Psychiatry, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Lars T Westlye
- Department of Psychology, University of Oslo, Oslo, Norway; Centre for Precision Psychiatry, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway; KG Jebsen Centre for Neurodevelopmental Disorders, University of Oslo, Oslo, Norway
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Zhong M, Salberg S, Sampangi S, van der Walt A, Butzkueven H, Mychasiuk R, Jokubaitis V. Leukocyte telomere length in multiple sclerosis: relationship between disability severity and pregnancy history. Mult Scler Relat Disord 2024; 86:105607. [PMID: 38631073 DOI: 10.1016/j.msard.2024.105607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 04/02/2024] [Accepted: 04/07/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Aging-related processes contribute to neurodegeneration and disability in multiple sclerosis (MS). Biomarkers of biological aging such as leukocyte telomere length (LTL) could help personalise prognosis. Pregnancy has been shown to be protective against disability accumulation in women with MS, though it is unclear if this effect relates to aging mechanisms or LTL. OBJECTIVES This study aimed to cross-sectionally characterise LTL in a cohort of individuals with MS, and to correlate LTL with disability severity and pregnancy history. METHODS We extracted DNA from the whole blood of 501 people with MS in Melbourne, Australia. Expanded Disability Status Scale (EDSS) score and demographic data, as well as pregnancy history for 197 females, were obtained at sample collection. Additional data were extracted from the MSBase Registry. LTL was determined in base pairs (bp) using real-time quantitative polymerase chain reaction. RESULTS A relationship between EDSS score and shorter LTL was robust to multivariable adjustment for demographic and clinical factors including chronological age, with an adjusted LTL reduction per 1.0 increase in EDSS of 97.1 bp (95 % CI = 9.7-184.5 bp, p = 0.030). Adjusted mediation analysis found chronological age accounted for 33.6 % of the relationship between LTL and EDSS score (p = 0.018). In females with pregnancy data, history of pregnancy was associated with older age (median 49.7 vs 33.0 years, p < 0.001). There were no significant relationships between adjusted LTL and any history of pregnancy (LTL increase of 65.3 bp, 95 % CI = -471.0-601.5 bp, p = 0.81) or number of completed pregnancies (LTL increase of 14.6 bp per pregnancy, 95 % CI = -170.3-199.6 bp, p = 0.87). CONCLUSIONS The correlation between LTL and disability independent of chronological age and other factors points to a link between neurological reserve in MS and biological aging, and a potential research target for pathophysiological and therapeutic mechanisms. Although LTL did not significantly differ by pregnancy history, longitudinal analyses could help identify interactions with prospectively captured pregnancy effects.
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Affiliation(s)
- Michael Zhong
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia; Department of Neurology, The Alfred Hospital, Melbourne, Australia.
| | - Sabrina Salberg
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Sandeep Sampangi
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Anneke van der Walt
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia; Department of Neurology, The Alfred Hospital, Melbourne, Australia
| | - Helmut Butzkueven
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia; Department of Neurology, The Alfred Hospital, Melbourne, Australia
| | - Richelle Mychasiuk
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia
| | - Vilija Jokubaitis
- Department of Neuroscience, Central Clinical School, Monash University, Melbourne, Australia; Department of Neurology, The Alfred Hospital, Melbourne, Australia
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Fan G, Liu Q, Bi J, Qin X, Fang Q, Wang Y, Song L. Association between female-specific reproductive factors and leukocyte telomere length. Hum Reprod 2023; 38:2239-2246. [PMID: 37671590 DOI: 10.1093/humrep/dead176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/16/2023] [Indexed: 09/07/2023] Open
Abstract
STUDY QUESTION What are the associations between female-specific reproductive factors and leukocyte telomere length (LTL)? SUMMARY ANSWER Early menarche, early menopause, short reproductive lifespan, early age at first birth, multiparity, and use of oral contraceptives (OCs) and hormone replacement therapy (HRT) were associated with shorter LTL. WHAT IS KNOWN ALREADY Reproductive factors have been associated with age-related diseases, but their associations with cellular aging, as indicated by LTL, are unclear. STUDY DESIGN, SIZE, DURATION This population-based study included 224 965 women aged 40-69 years from the UK Biobank between 2006 and 2010. PARTICIPANTS/MATERIALS, SETTING, METHODS Women aged 40-69 were included. Female-specific reproductive factors, including age at menarche, age at natural menopause, reproductive lifespan, number of live births, age at first live birth, history of stillbirth, history of miscarriage, and use of OCs and HRT were self-reported. LTL was measured using a validated polymerase chain reaction method. Multiple linear regression and restricted cubic spline models were applied to explore the association between each reproductive factor and LTL. MAIN RESULTS AND THE ROLE OF CHANCE After adjustment for potential confounders, early menarche (<12 years; percent change, per unit change in LTL Z score: -1.29%, 95% CI: -2.32%, -0.26%), early menopause (<45 years; percent change: -7.18%, 95% CI: -8.87%, -5.45%), short reproductive lifespan (<30 years; percent change: -6.10%, 95% CI: -8.14%, -4.01%), multiparity (percent change: -3.38%, 95% CI: -4.38%, -2.37%), early age at first live birth (<20 years; percent change: -4.46%, 95% CI: -6.00%, -2.90%), and use of OCs (percent change: -1.10%, 95% CI: -2.18%, -0.02%) and HRT (percent change: -3.72%, 95% CI: -4.63%, -2.80%) were all significantly associated with shorter LTL. However, no significant association was found for history of miscarriage and stillbirth. We observed nonlinear relationships of age at menarche, age at natural menopause, reproductive lifespan, and age at first live birth with LTL (Pnonlinear < 0.05). LIMITATIONS, REASONS FOR CAUTION Considering that the participants were predominantly of European ethnicity, the findings may not be generalizable to women of other ethnic backgrounds. WIDER IMPLICATIONS OF THE FINDINGS Our findings suggest that early menarche, early menopause, short reproductive lifespan, early age at first birth, multiparity, and use of OCs and HRT were associated with shorter LTL, which has been linked to various chronic diseases. The accelerated shortening of telomeres may potentially contribute to the development of chronic diseases related to reproductive factors. STUDY FUNDING/COMPETING INTEREST(S) This study was funded by the National Natural Science Foundation of China (82003479, 82073660), Hubei Provincial Natural Science Foundation of China (2023AFB663), and the China Postdoctoral Science Foundation (2019M662646, 2020T130220). The authors have no competing interests to disclose. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Gaojie Fan
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qing Liu
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jianing Bi
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiya Qin
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Qing Fang
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Youjie Wang
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lulu Song
- Department of Maternal and Child Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Houminer-Klepar N, Bord S, Epel E, Baron-Epel O. Are pregnancy and parity associated with telomere length? A systematic review. BMC Pregnancy Childbirth 2023; 23:733. [PMID: 37848852 PMCID: PMC10583451 DOI: 10.1186/s12884-023-06011-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 09/19/2023] [Indexed: 10/19/2023] Open
Abstract
BACKGROUND Women's reproduction requires increased energy demands, which consequently may lead to cellular damage and aging. Hence, Telomere Length (TL), a biomarker of biological aging and health status may possibly serve as a biomarker of reproductive effort. The aim of this systematic review is to evaluate telomere dynamics throughout pregnancy and the association between parity and TL. METHODS A systematic search was conducted across seven databases including CINAHL, Cochrane, PsycINFO, Proquest, PubMed; Scopus; and Web of Science, using keywords and MeSH descriptors of parity and TL. Predefined inclusion and exclusion criteria were used to screen abstracts and titles. After the removal of duplicates, 3431 articles were included in the primary screening, narrowed to 194 articles included in the full-text screening. Consensus was reached for the 14 studies that were included in the final review, and the Newcastle-Ottawa scale (NOS) was utilized to assess the quality of the selected studies. A mini meta-analysis utilized JASP 0.17.3 software and included 4 applicable studies, comprising a total of 2564 participants to quantitatively assess the estimated effect size of parity on TL. RESULTS Of the 11 studies reviewed on parity and TL, four demonstrated a negative correlation; one - a positive correlation and six -found no correlation. Studies demonstrating a negative correlation encompassed rigorous methodological practices possibly suggesting having more children is associated with enhanced telomere attrition. Of the four longitudinal studies assessing telomere dynamics throughout pregnancy, most found no change in TL from early pregnancy to postpartum suggesting pregnancy does not affect TL from early pregnancy to early postpartum. The meta-analysis revealed a negative, yet, non-significant effect, of the estimated effect size of parity on TL(ES = -0.009, p = 0.126, CI -0.021, 0.03). CONCLUSIONS Studies assessing pregnancy, parity and TL yielded mixed results, most likely due to the different research methods utilized in each study. Improvements in study design to better understand the short-term effects of pregnancy on TL and the effect of parity on TL over time, include precise definitions of parity, comparisons of different age groups, inclusion of reproductive lifespan and statistically adjusting for potential confounders in the parity and TL relationship.
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Affiliation(s)
- Nourit Houminer-Klepar
- School of Public Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Mount Carmel, 31905, Haifa, Israel.
| | - Shiran Bord
- Health Systems Management Department, The Max Stern Yezreel Valley College, 1930600, Yezreel Valley, Israel
| | - Elissa Epel
- Department of Psychiatry and Behavioral Sciences, University of California, 675 18th St, San Francisco, CA, 94107, USA
| | - Orna Baron-Epel
- School of Public Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Mount Carmel, 31905, Haifa, Israel
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Puri TA, Richard JE, Galea LAM. Beyond sex differences: short- and long-term effects of pregnancy on the brain. Trends Neurosci 2023; 46:459-471. [PMID: 37120339 DOI: 10.1016/j.tins.2023.03.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/06/2023] [Accepted: 03/21/2023] [Indexed: 05/01/2023]
Abstract
Growing attention has been directed to the inclusion of females in neuroscience studies, and to the importance of studying sex as a biological variable. However, how female-specific factors such as menopause and pregnancy, affect the brain remains understudied. In this review, we use pregnancy as a case in point of a female-unique experience that can alter neuroplasticity, neuroinflammation, and cognition. We examine studies in both humans and rodents indicating that pregnancy can modify neural function in the short term, as well as alter the trajectory of brain aging. Furthermore, we discuss the influence of maternal age, fetal sex, number of pregnancies, and presence of pregnancy complications on brain health outcomes. We conclude by encouraging the scientific community to prioritize researching female health by recognizing and including factors such as pregnancy history in research.
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Affiliation(s)
- Tanvi A Puri
- Graduate Program in Neuroscience, University of British Columbia, Vancouver, BC, Canada; Djavad Mowafaghian Center for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Jennifer E Richard
- Djavad Mowafaghian Center for Brain Health, University of British Columbia, Vancouver, BC, Canada; Institute of Neuroscience and Physiology, University of Gothenburg, Gothenburg, Sweden
| | - Liisa A M Galea
- Graduate Program in Neuroscience, University of British Columbia, Vancouver, BC, Canada; Djavad Mowafaghian Center for Brain Health, University of British Columbia, Vancouver, BC, Canada; Department of Psychology, University of British Columbia, Vancouver, BC, Canada; Centre for Addiction and Mental Health, Toronto, ON, Canada; Department of Psychiatry, University of Toronto, Toronto, ON, Canada.
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7
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Frailty and the risk of infection-related hospitalizations in older age: Differences by sex. Maturitas 2023; 168:1-6. [PMID: 36370488 DOI: 10.1016/j.maturitas.2022.10.009] [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: 06/29/2022] [Revised: 10/20/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVES To investigate the extent to which frailty is associated with infection-related hospitalizations in older men and women, and to explore whether, among women, previous exposure to endogenous estrogens in terms of age at menopause and number of pregnancies modify such a relationship. STUDY DESIGN The sample comprised 2784 participants in the Progetto Veneto Anziani aged ≥65 years. At baseline and after 4.4 years, frailty was identified according to the presence of three or more of the following: weakness, exhaustion, weight loss, low physical activity, and low walking speed. A passive follow-up on infection-related hospitalizations and mortality was performed for 10 years of observation through linkage with regional registers. MAIN OUTCOME MEASURES The association between frailty and infection-related hospitalizations was assessed through mixed-effects Cox regressions. RESULTS Frailty was significantly associated with a 78 % higher risk of infection-related hospitalization, with stronger results in men (hazard ratio = 2.32, 95 % confidence interval 1.63-3.30) than in women (hazard ratio = 1.54, 95 % confidence interval 1.18-2.02). Focusing on women, we found a possible modifying effect for the number of pregnancies but not menopausal age. Women who had experienced one or no pregnancy demonstrated a higher hazard of infection-related hospitalization as a function of frailty (hazard ratio = 3.00, 95 % confidence interval 1.58-5.71) than women who had experienced two or more pregnancies (hazard ratio = 1.68, 95 % confidence interval 1.18-2.39). CONCLUSION Frailty in older age increases the risk of infection-related hospitalizations, especially in men. The "immunologic advantage" of the female sex in younger age seems to persist also after menopause as a function of the number of pregnancies a woman has experienced.
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Ravindran S, Froy H, Underwood SL, Dorrens J, Seeker LA, Watt K, Wilbourn RV, Pilkington JG, Harrington L, Pemberton JM, Nussey DH. The association between female reproductive performance and leukocyte telomere length in wild Soay sheep. Mol Ecol 2022; 31:6184-6196. [PMID: 34514660 DOI: 10.1111/mec.16175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 08/03/2021] [Indexed: 01/31/2023]
Abstract
Telomere length (TL), typically measured across a sample of blood cells, has emerged as an exciting potential marker of physiological state and of the costs of investment in growth and reproduction within evolutionary ecology. While there is mounting evidence from studies of wild vertebrates that short TL predicts raised subsequent mortality risk, the relationship between reproductive investment and TL is less clear cut, and previous studies report both negative and positive associations. In this study, we examined the relationship between TL and different aspects of maternal reproductive performance in a free-living population of Soay sheep. We find evidence for shorter TL in females that bred, and thus paid any costs of gestation, compared to females that did not breed. However, we found no evidence for any association between TL and litter size. Furthermore, females that invested in gestation and lactation actually had longer TL than females who only invested in gestation because their offspring died shortly after birth. We used multivariate models to decompose these associations into among- and within-individual effects, and discovered that within-individual effects were driving both the negative association between TL and gestation, and the positive association between TL and lactation. This suggests that telomere dynamics may reflect recent physiologically costly investment or variation in physiological condition, depending on the aspect of reproduction being investigated. Our results highlight the physiological complexity of vertebrate reproduction, and the need to better understand how and why different aspects of physiological variation underpinning life histories impact blood cell TL.
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Affiliation(s)
- Sanjana Ravindran
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Hannah Froy
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK.,Centre for Biodiversity Dynamics, Institute for Biology, Norwegian University for Science and Technology (NTNU), Trondheim, Norway
| | - Sarah L Underwood
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Jennifer Dorrens
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Luise A Seeker
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Kathryn Watt
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Rachael V Wilbourn
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Jill G Pilkington
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Lea Harrington
- Institute for Research in Immunology and Cancer, Université de Montréal, Montréal, Canada
| | - Josephine M Pemberton
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Daniel H Nussey
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
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9
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Atema E, van Noordwijk AJ, Verhulst S. Telomere dynamics in relation to experimentally increased locomotion costs and fitness in great tits. Mol Ecol 2022; 31:6208-6215. [PMID: 34478576 PMCID: PMC9786264 DOI: 10.1111/mec.16162] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 08/06/2021] [Accepted: 08/20/2021] [Indexed: 02/02/2023]
Abstract
Evidence that telomere length (TL) and dynamics can be interpreted as proxy for 'life stress' experienced by individuals stems largely from correlational studies. We tested for effects of an experimental increase of workload on telomere dynamics by equipping male great tits (Parus major) with a 0.9 g backpack for a full year. In addition, we analysed associations between natural life-history variation, TL and TL dynamics. Carrying 5% extra weight for a year did not significantly accelerate telomere attrition. This agrees with our earlier finding that this experiment did not affect survival or future reproduction. Apparently, great tit males were able to compensate behaviourally or physiologically for the increase in locomotion costs we imposed. We found no cross-sectional association between reproductive success and TL, but individuals with higher reproductive success (number of recruits) lost fewer telomere base pairs in the subsequent year. We used the TRF method to measure TL, which method yields a TL distribution for each sample, and the association between reproductive success and telomere loss was more pronounced in the higher percentiles of the telomere distribution, in agreement with the higher impact of ageing on longer telomeres within individuals. Individuals with longer telomeres and less telomere shortening were more likely to survive to the next breeding season, but these patterns did not reach statistical significance. Whether successful individuals are characterized by losing fewer or more base pairs from their telomeres varies between species, and we discuss aspects of ecology and social organisation that may explain this variation.
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Affiliation(s)
- Els Atema
- GELIFESUniversity of GroningenGroningenthe Netherlands,Netherlands Institute of EcologyWageningenthe Netherlands
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10
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Nishitani S, Kasaba R, Hiraoka D, Shimada K, Fujisawa TX, Okazawa H, Tomoda A. Epigenetic Clock Deceleration and Maternal Reproductive Efforts: Associations With Increasing Gray Matter Volume of the Precuneus. Front Genet 2022; 13:803584. [PMID: 35309114 PMCID: PMC8926035 DOI: 10.3389/fgene.2022.803584] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/02/2022] [Indexed: 11/30/2022] Open
Abstract
Reproductive efforts, such as pregnancy, delivery, and interaction with children, make maternal brains optimized for child-rearing. However, extensive studies in non-human species revealed a tradeoff between reproductive effort and life expectancy. In humans, large demographic studies have shown that this is the case for the most part; however, molecular marker studies regarding aging remain controversial. There are no studies simultaneously evaluating the relationship between reproductive effort, aging, and brain structures. We therefore examined the associations between reproductive efforts (parity status, number of deliveries, motherhood period, and cumulative motherhood period), DNA methylation age (mAge) acceleration (based on Horvath’s multi-tissue clock and the skin & blood clock), and the regional gray matter volumes (obtained through brain magnetic resonance imaging (MRI) using voxel-based morphometry) in 51 mothers aged 27–46 years of children in early childhood. We found that increasing reproductive efforts were significantly associated with decelerated aging in mothers with one to four children, even after adjusting for the confounding effects in the multiple linear regression models. We also found that the left precuneus gray matter volume was larger as deceleration of aging occurred; increasing left precuneus gray matter volume, on the other hand, mediates the relationship between parity status and mAge deceleration. Our findings suggest that mothers of children in early childhood, who have had less than four children, may benefit from deceleration of aging mediated via structural changes in the precuneus.
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Affiliation(s)
- Shota Nishitani
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
- Division of Developmental Higher Brain Functions, United Graduate School of Child Development, Hamamatsu University School of Medicine, Osaka University, Kanazawa University, Chiba University, University of Fukui, Osaka, Japan
- Life Science Innovation Center, University of Fukui, Fukui, Japan
- *Correspondence: Shota Nishitani, ; Akemi Tomoda,
| | - Ryoko Kasaba
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
- Division of Developmental Higher Brain Functions, United Graduate School of Child Development, Hamamatsu University School of Medicine, Osaka University, Kanazawa University, Chiba University, University of Fukui, Osaka, Japan
| | - Daiki Hiraoka
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Koji Shimada
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
- Division of Developmental Higher Brain Functions, United Graduate School of Child Development, Hamamatsu University School of Medicine, Osaka University, Kanazawa University, Chiba University, University of Fukui, Osaka, Japan
- Life Science Innovation Center, University of Fukui, Fukui, Japan
- Biomedical Imaging Research Center, University of Fukui, Fukui, Japan
| | - Takashi X. Fujisawa
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
- Division of Developmental Higher Brain Functions, United Graduate School of Child Development, Hamamatsu University School of Medicine, Osaka University, Kanazawa University, Chiba University, University of Fukui, Osaka, Japan
- Life Science Innovation Center, University of Fukui, Fukui, Japan
| | - Hidehiko Okazawa
- Life Science Innovation Center, University of Fukui, Fukui, Japan
- Biomedical Imaging Research Center, University of Fukui, Fukui, Japan
| | - Akemi Tomoda
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
- Division of Developmental Higher Brain Functions, United Graduate School of Child Development, Hamamatsu University School of Medicine, Osaka University, Kanazawa University, Chiba University, University of Fukui, Osaka, Japan
- Life Science Innovation Center, University of Fukui, Fukui, Japan
- Department of Child and Adolescent Psychological Medicine, University of Fukui Hospital, Fukui, Japan
- *Correspondence: Shota Nishitani, ; Akemi Tomoda,
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11
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Chen L, Tan KML, Gong M, Chong MFF, Tan KH, Chong YS, Meaney MJ, Gluckman PD, Eriksson JG, Karnani N. Variability in newborn telomere length is explained by inheritance and intrauterine environment. BMC Med 2022; 20:20. [PMID: 35073935 PMCID: PMC8787951 DOI: 10.1186/s12916-021-02217-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 12/14/2021] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND Telomere length (TL) and its attrition are important indicators of physiological stress and biological aging and hence may vary among individuals of the same age. This variation is apparent even in newborns, suggesting potential effects of parental factors and the intrauterine environment on TL of the growing fetus. METHODS Average relative TLs of newborns (cord tissue, N = 950) and mothers (buffy coat collected at 26-28 weeks of gestation, N = 892) were measured in a birth cohort. This study provides a comprehensive analysis of the effects of heritable factors, socioeconomic status, and in utero exposures linked with maternal nutrition, cardiometabolic health, and mental well-being on the newborn TL. The association between maternal TL and antenatal maternal health was also studied. RESULTS Longer maternal TL (β = 0.14, P = 1.99E-05) and higher paternal age (β = 0.10, P = 3.73E-03) were positively associated with newborn TL. Genome-wide association studies on newborn and maternal TLs identified 6 genetic variants in a strong linkage disequilibrium on chromosome 3q26.2 (Tag SNP-LRRC34-rs10936600: Pmeta = 5.95E-08). Mothers with higher anxiety scores, elevated fasting blood glucose, lower plasma insulin-like growth factor-binding protein 3 and vitamin B12 levels, and active smoking status during pregnancy showed a higher risk of giving birth to offspring with shorter TL. There were sex-related differences in the factors explaining newborn TL variation. Variation in female newborn TL was best explained by maternal TL, mental health, and plasma vitamin B12 levels, while that in male newborn TL was best explained by paternal age, maternal education, and metabolic health. Mother's TL was associated with her own metabolic health and nutrient status, which may have transgenerational effects on offspring TL. CONCLUSIONS Our findings provide a comprehensive understanding of the heritable and environmental factors and their relative contributions to the initial setting of TL and programing of longevity in early life. This study provides valuable insights for preventing in utero telomere attrition by improving the antenatal health of mothers via targeting the modifiable factors. TRIAL REGISTRATION ClinicalTrials.gov , NCT01174875. Registered on 1 July 2010.
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Affiliation(s)
- Li Chen
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore.
| | | | - Min Gong
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore
| | - Mary F F Chong
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore.,Saw Swee Hock School of Public Health, National University of Singapore (NUS), Singapore, Singapore
| | - Kok Hian Tan
- KK Women's and Children's Hospital, Singapore, Singapore
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore.,Department of Obstetrics and Gynaecology and Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Michael J Meaney
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore.,Sackler Program for Epigenetics & Psychobiology at McGill University, Montréal, Canada.,Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, McGill University, Montréal, Canada
| | - Peter D Gluckman
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore.,Centre for Human Evolution, Adaptation and Disease, Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Johan G Eriksson
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore.,Ludmer Centre for Neuroinformatics and Mental Health, Douglas Mental Health University Institute, McGill University, Montréal, Canada.,Folkhalsan Research Center, Helsinki, Finland.,Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
| | - Neerja Karnani
- Singapore Institute for Clinical Sciences, A*STAR, Singapore, Singapore. .,Bioinformatics Institute, A*STAR, Singapore, Singapore. .,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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12
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Aleknaviciute J, Evans TE, Aribas E, de Vries MW, Steegers EAP, Ikram MA, Tiemeier H, Kavousi M, Vernooij MW, Kushner SA. Long-term association of pregnancy and maternal brain structure: the Rotterdam Study. Eur J Epidemiol 2022; 37:271-281. [PMID: 34989970 PMCID: PMC9110529 DOI: 10.1007/s10654-021-00818-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 10/29/2021] [Indexed: 02/06/2023]
Abstract
The peripartum period is the highest risk interval for the onset or exacerbation of psychiatric illness in women’s lives. Notably, pregnancy and childbirth have been associated with short-term structural and functional changes in the maternal human brain. Yet the long-term effects of pregnancy on maternal brain structure remain unknown. We investigated a large population-based cohort to examine the association between parity and brain structure. In total, 2,835 women (mean age 65.2 years; all free from dementia, stroke, and cortical brain infarcts) from the Rotterdam Study underwent magnetic resonance imaging (1.5 T) between 2005 and 2015. Associations of parity with global and lobar brain tissue volumes, white matter microstructure, and markers of vascular brain disease were examined using regression models. We found that parity was associated with a larger global gray matter volume (β = 0.14, 95% CI = 0.09–0.19), a finding that persisted following adjustment for sociodemographic factors. A non-significant dose-dependent relationship was observed between a higher number of childbirths and larger gray matter volume. The gray matter volume association with parity was globally proportional across lobes. No associations were found regarding white matter volume or integrity, nor with markers of cerebral small vessel disease. The current findings suggest that pregnancy and childbirth are associated with robust long-term changes in brain structure involving a larger global gray matter volume that persists for decades. Future studies are warranted to further investigate the mechanism and physiological relevance of these differences in brain morphology.
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Affiliation(s)
- Jurate Aleknaviciute
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, 's Gravendijkwal 230, 3000 CA, Rotterdam, The Netherlands
| | - Tavia E Evans
- Department of Clinical Genetics, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 90, 3015 CN, Rotterdam, The Netherlands.,Department of Radiology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Elif Aribas
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 90, 3015 CN, Rotterdam, The Netherlands
| | - Merel W de Vries
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, 's Gravendijkwal 230, 3000 CA, Rotterdam, The Netherlands
| | - Eric A P Steegers
- Department of Obstetrics and Gynecology, Erasmus MC-Sophia Children's Hospital, University Medical Center Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Mohammad Arfan Ikram
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 90, 3015 CN, Rotterdam, The Netherlands
| | - Henning Tiemeier
- Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.,Department of Child Psychiatry, Sophia Children's Hospital, Erasmus University Medical Center, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands
| | - Maryam Kavousi
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 90, 3015 CN, Rotterdam, The Netherlands
| | - Meike W Vernooij
- Department of Radiology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 80, 3015 CN, Rotterdam, The Netherlands. .,Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Wytemaweg 90, 3015 CN, Rotterdam, The Netherlands.
| | - Steven A Kushner
- Department of Psychiatry, Erasmus MC, University Medical Center Rotterdam, 's Gravendijkwal 230, 3000 CA, Rotterdam, The Netherlands
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13
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Horn AJ, Carter CS. Love and longevity: A Social Dependency Hypothesis. COMPREHENSIVE PSYCHONEUROENDOCRINOLOGY 2021; 8:100088. [PMID: 35757670 PMCID: PMC9216627 DOI: 10.1016/j.cpnec.2021.100088] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 09/23/2021] [Accepted: 09/26/2021] [Indexed: 12/28/2022] Open
Abstract
Mammals, including humans, are reliant for survival and reproduction on adaptations associated with sociality and physiological investment, which can be linked to interactions with their parents or other bonded adult conspecifics. A wide range of evidence in human and non-human mammal species links social behaviors and relationships - including those characterized by what humans call "love" - to positive health and longevity. In light of this evidence, we propose a Social Dependency Hypothesis of Longevity, suggesting that natural selection has favored longer and healthier adult lives in species or in individuals exhibiting enhanced caregiver responsibilities contributing to the success of the next generation. In highlighting cellular, physiological, and behavioral effects of mammalian reproductive hormones, we examine the specific hypothesis that the neuropeptide oxytocin links longevity to the benefits of parental investment and associated relationships. Oxytocin is a pleiotropic molecule with anti-oxidant and anti-inflammatory properties, capable of regulating the hypothalamic-pituitary-adrenal axis, the parasympathetic nervous system and other systems associated with the management of various challenges, including chronic diseases and therefore may be crucial to establishing the maximum longevity potential of a species or an individual.
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Affiliation(s)
| | - C. Sue Carter
- University of Virginia and Indiana University, United States
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14
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Purdue-Smithe AC, Kim K, Andriessen VC, Pollack AZ, Sjaarda LA, Silver RM, Schisterman EF, Mumford SL. Preconception leukocyte telomere length and pregnancy outcomes among women with demonstrated fecundity. Hum Reprod 2021; 36:3122-3130. [PMID: 34477845 DOI: 10.1093/humrep/deab201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 08/10/2021] [Indexed: 11/15/2022] Open
Abstract
STUDY QUESTION Is preconception leukocyte telomere length associated with fecundability, pregnancy loss and live birth among women attempting natural conception with a history of 1-2 prior pregnancy losses? SUMMARY ANSWER Preconception leukocyte telomere length is not associated with fecundability, pregnancy loss or live birth. WHAT IS KNOWN ALREADY As women increasingly delay childbearing, accessible preconception biomarkers to predict pregnancy outcomes among women seeking natural conception could improve preconception counseling. Findings of small case-control or cross-sectional studies suggest that telomere attrition is associated with adverse pregnancy outcomes among women undergoing fertility treatment, but prospective studies in non-clinical populations are lacking. STUDY DESIGN, SIZE, DURATION Participants included 1228 women aged 18-40 years with a history of 1-2 prior pregnancy losses who were recruited at four university medical centers (2006-2012). PARTICIPANTS/MATERIALS, SETTING, METHODS Preconception leukocyte telomere length was measured at baseline using PCR and reported as a ratio (T/S) in relation to population-specific standard reference DNA. Women were followed for up to six cycles while attempting to conceive. Associations of telomere length with fecundability, live birth and pregnancy loss were estimated using discrete Cox proportional hazards models and log-binomial models. MAIN RESULTS AND THE ROLE OF CHANCE After adjustment for age, BMI, smoking and other factors, preconception telomere length was not associated with fecundability (Q4 vs Q1 FOR = 1.00; 95% CI = 0.79, 1.27), live birth (Q4 vs Q1 RR = 1.00; 95% CI = 0.85, 1.19), or pregnancy loss (Q4 vs Q1 RR = 1.12; 95% CI = 0.78, 1.62). LIMITATIONS, REASONS FOR CAUTION Telomere length was measured in leukocytes, which is an accessible tissue in women attempting natural conception but may not reflect telomere length in oocytes. Most women were younger than 35 years, limiting our ability to evaluate associations among older women. Participants had a history of 1-2 prior pregnancy losses; therefore, our findings may not be widely generalizable. WIDER IMPLICATIONS OF THE FINDINGS Despite prior research suggesting that telomere length may be associated with pregnancy outcomes among women seeking fertility treatment, our findings suggest that leukocyte telomere length is not a suitable biomarker of pregnancy establishment or maintenance among women attempting natural conception. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development (National Institutes of Health, Bethesda, MD, USA; contract numbers HHSN267200603423, HHSN267200603424 and HHSN267200603426). The authors have no conflicts of interest to disclose. TRIAL REGISTRATION NUMBER The trial was registered with ClinicalTrials.gov, number NCT00467363.
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Affiliation(s)
- Alexandra C Purdue-Smithe
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Keewan Kim
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Victoria C Andriessen
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Anna Z Pollack
- Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, VA, USA
| | - Lindsey A Sjaarda
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Robert M Silver
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
| | - Enrique F Schisterman
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sunni L Mumford
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA
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15
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Voldsbekk I, Barth C, Maximov II, Kaufmann T, Beck D, Richard G, Moberget T, Westlye LT, de Lange AG. A history of previous childbirths is linked to women's white matter brain age in midlife and older age. Hum Brain Mapp 2021; 42:4372-4386. [PMID: 34118094 PMCID: PMC8356991 DOI: 10.1002/hbm.25553] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 05/12/2021] [Accepted: 05/27/2021] [Indexed: 02/06/2023] Open
Abstract
Maternal brain adaptations occur in response to pregnancy, but little is known about how parity impacts white matter and white matter ageing trajectories later in life. Utilising global and regional brain age prediction based on multi-shell diffusion-weighted imaging data, we investigated the association between previous childbirths and white matter brain age in 8,895 women in the UK Biobank cohort (age range = 54-81 years). The results showed that number of previous childbirths was negatively associated with white matter brain age, potentially indicating a protective effect of parity on white matter later in life. Both global white matter and grey matter brain age estimates showed unique contributions to the association with previous childbirths, suggesting partly independent processes. Corpus callosum contributed uniquely to the global white matter association with previous childbirths, and showed a stronger relationship relative to several other tracts. While our findings demonstrate a link between reproductive history and brain white matter characteristics later in life, longitudinal studies are required to establish causality and determine how parity may influence women's white matter trajectories across the lifespan.
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Affiliation(s)
- Irene Voldsbekk
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of Health and FunctioningWestern Norway University of Applied SciencesBergenNorway
| | - Claudia Barth
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
| | - Ivan I. Maximov
- Department of Health and FunctioningWestern Norway University of Applied SciencesBergenNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Tobias Kaufmann
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of Psychiatry and PsychotherapyUniversity of TübingenTübingenGermany
| | - Dani Beck
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
- Sunnaas Rehabilitation Hospital HTOsloNorway
| | - Genevieve Richard
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
| | - Torgeir Moberget
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
| | - Lars T. Westlye
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- Department of PsychologyUniversity of OsloOsloNorway
- KG Jebsen Centre for Neurodevelopmental DisordersUniversity of OsloOsloNorway
| | - Ann‐Marie G. de Lange
- NORMENT, Institute of Clinical Medicine, University of Oslo & Division of Mental Health and Addiction, Oslo University HospitalOsloNorway
- LREN, Centre for Research in Neurosciences, Department of Clinical NeurosciencesLausanne University Hospital (CHUV) and University of LausanneLausanneSwitzerland
- Department of PsychiatryUniversity of OxfordOxfordUK
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16
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Jasienska G. Costs of reproduction and ageing in the human female. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190615. [PMID: 32951546 PMCID: PMC7540952 DOI: 10.1098/rstb.2019.0615] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2020] [Indexed: 12/27/2022] Open
Abstract
Evolutionary theories of ageing point to reproduction as a significant factor to consider when asking why ageing occurs and why there is inter-individual variation in its progression. Reproduction in human females is costly, in terms of energy, nutrients and metabolic adjustments. Thus, it is expected that women who experienced high reproductive effort resulting from multiple reproductive events will age faster. However, the evidence for long-term negative effects of reproduction is not conclusive. The lack of understanding of whether there are trade-offs between reproduction and ageing in women is partly due to methodological challenges. The costs of reproduction are often calculated based only on parity, while other elements contributing to these costs (e.g. breastfeeding, timing of reproduction) are neglected, which may significantly underestimate the total costs and obscure the all-important inter-individual variation in such costs. Costs must be evaluated in relation to individual characteristics, including developmental conditions, nutritional status and social support that a mother receives during reproduction. Furthermore, ageing and health must be assessed based on comprehensive markers rather than arbitrarily assembled variables. Finally, longitudinal rather than cross-sectional studies and new statistical approaches are needed to reveal how much of a decline in health and progressing ageing can actually be attributed to past reproductive processes. This article is part of the theme issue 'Evolution of the primate ageing process'.
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Affiliation(s)
- Grazyna Jasienska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
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17
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de Lange AG, Barth C, Kaufmann T, Anatürk M, Suri S, Ebmeier KP, Westlye LT. The maternal brain: Region-specific patterns of brain aging are traceable decades after childbirth. Hum Brain Mapp 2020; 41:4718-4729. [PMID: 32767637 PMCID: PMC7555081 DOI: 10.1002/hbm.25152] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/30/2020] [Accepted: 07/16/2020] [Indexed: 12/11/2022] Open
Abstract
Pregnancy involves maternal brain adaptations, but little is known about how parity influences women's brain aging trajectories later in life. In this study, we replicated previous findings showing less apparent brain aging in women with a history of childbirths, and identified regional brain aging patterns linked to parity in 19,787 middle- and older-aged women. Using novel applications of brain-age prediction methods, we found that a higher number of previous childbirths were linked to less apparent brain aging in striatal and limbic regions. The strongest effect was found in the accumbens-a key region in the mesolimbic reward system, which plays an important role in maternal behavior. While only prospective longitudinal studies would be conclusive, our findings indicate that subcortical brain modulations during pregnancy and postpartum may be traceable decades after childbirth.
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Affiliation(s)
- Ann‐Marie G. de Lange
- Department of PsychiatryUniversity of OxfordOxfordUK
- Department of PsychologyUniversity of OsloOsloNorway
- NORMENT, Institute of Clinical Medicine, University of Oslo, & Division of Mental Health and AddictionOslo University HospitalOsloNorway
| | - Claudia Barth
- NORMENT, Institute of Clinical Medicine, University of Oslo, & Division of Mental Health and AddictionOslo University HospitalOsloNorway
| | - Tobias Kaufmann
- NORMENT, Institute of Clinical Medicine, University of Oslo, & Division of Mental Health and AddictionOslo University HospitalOsloNorway
| | - Melis Anatürk
- Department of PsychiatryUniversity of OxfordOxfordUK
- Wellcome Centre for Integrative NeuroimagingUniversity of OxfordOxfordUK
| | - Sana Suri
- Department of PsychiatryUniversity of OxfordOxfordUK
- Wellcome Centre for Integrative NeuroimagingUniversity of OxfordOxfordUK
| | | | - Lars T. Westlye
- Department of PsychologyUniversity of OsloOsloNorway
- NORMENT, Institute of Clinical Medicine, University of Oslo, & Division of Mental Health and AddictionOslo University HospitalOsloNorway
- KG Jebsen Centre for Neurodevelopmental DisordersUniversity of OsloOsloNorway
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18
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McKerracher L, Fried R, Kim AW, Moffat T, Sloboda DM, Galloway T. Synergies between the Developmental Origins of Health and Disease framework and multiple branches of evolutionary anthropology. Evol Anthropol 2020; 29:214-219. [DOI: 10.1002/evan.21860] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 04/24/2020] [Accepted: 07/15/2020] [Indexed: 02/05/2023]
Affiliation(s)
- Luseadra McKerracher
- Department of Biochemistry and Biomedical Sciences McMaster University Hamilton Ontario Canada
- Department of Anthropology McMaster University Hamilton Ontario Canada
| | - Ruby Fried
- Institute for Circumpolar Health Studies, University of Alaska Anchorage Anchorage Alaska USA
| | - Andrew W. Kim
- Department of Anthropology Northwestern University Evanston Illinois USA
| | - Tina Moffat
- Department of Anthropology McMaster University Hamilton Ontario Canada
| | - Deborah M. Sloboda
- Department of Obstetrics and Gynecology McMaster University Hamilton Ontario Canada
- Department of Pediatrics McMaster University Hamilton Ontario Canada
- Farncombe Institute of Digestive Health McMaster University Hamilton Ontario Canada
| | - Tracey Galloway
- Department of Anthropology University of Toronto Mississauga Ontario Canada
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19
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Giller A, Andrawus M, Gutman D, Atzmon G. Pregnancy as a model for aging. Ageing Res Rev 2020; 62:101093. [PMID: 32502628 DOI: 10.1016/j.arr.2020.101093] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 04/21/2020] [Accepted: 05/23/2020] [Indexed: 12/12/2022]
Abstract
The process of aging can be defined as the sum accumulation of damages and changes in metabolism during the life of an organism, due to both genetic predisposition and stochastic damage. During the gestational period and following parturition, similar damage can be seen due to the strenuous effect on the maternal body, exhibited on both the physiological and cellular level. In this review, we will focus on the similar physiological and cellular characteristics exhibited during pregnancy and aging, including induction of and response to oxidative stress, inflammation, and degradation of telomeres. We will evaluate any similar processes between aging and pregnancy by comparing common biomarkers, pathologies, and genetic and epigenetic effects, to establish the pregnant body as a model for aging. This review will approach the connection both in respect to current theories on aging as a byproduct of natural selection, and regarding unrelated biochemical similarities between the two, drawing on existing studies and models in humans and other species where relevant alike. Furthermore, we will show the response of the pregnant body to these changes, and through that illuminate unique areas of potential study to advance our knowledge of the maladies relating to aging and pregnancy, and an avenue for solutions.
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Affiliation(s)
- Abram Giller
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel
| | - Mariana Andrawus
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel
| | - Danielle Gutman
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel
| | - Gil Atzmon
- Faculty of Natural Sciences, University of Haifa, 199 Aba Khoushy Ave., Mount Carmel, Haifa, 349888, Israel; Departments of Genetics and Medicine, Albert Einstein College of Medicine, 1300 Morris Park Ave, Bronx, New York, 10461, USA.
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20
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Rej PH, Bondy MH, Lin J, Prather AA, Kohrt BA, Worthman CM, Eisenberg DTA. Telomere length analysis from minimally-invasively collected samples: Methods development and meta-analysis of the validity of different sampling techniques: American Journal of Human Biology. Am J Hum Biol 2020; 33:e23410. [PMID: 32189404 DOI: 10.1002/ajhb.23410] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 02/07/2020] [Accepted: 02/29/2020] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVES Telomeres are the protective caps of chromosomes. They shorten with cell replication, age, and possibly environmental stimuli (eg, infection and stress). Short telomere length (TL) predicts subsequent worse health. Although venous whole blood (VWB) is most commonly used for TL measurement, other, more minimally invasive, sampling techniques are becoming increasingly common due to their field-friendliness, allowing for feasible measurement in low-resource contexts. We conducted statistical validation work for measuring TL in dried blood spots (DBS) and incorporated our results into a meta-analysis evaluating minimally invasive sampling techniques to measure TL. METHODS We isolated DNA extracts from DBS using a modified extraction protocol and tested how they endured different shipping conditions and long-term cryostorage. We then included our in-house DBS TL validation statistics (correlation values with VWB TL and age) in a series of meta-analyses of results from 24 other studies that published similar associations for values between TL measured in DBS, saliva, and buccal cells. RESULTS Our modified DBS extraction technique produced DNA yields that were roughly twice as large as previously recorded. Partially extracted DBS DNA was stable for 7 days at room temperature, and still provided reliable TL measurements, as determined by external validation statistics. In our meta-analysis, DBS TL had the highest external validity, followed by saliva, and then buccal cells-possibly reflecting similarities/differences in cellular composition vs VWB. CONCLUSIONS DBS DNA is the best proxy for VWB from the three minimally-invasively specimen types evaluated and can be used to expand TL research to diverse settings and populations.
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Affiliation(s)
- Peter H Rej
- Department of Anthropology, University of Washington, Seattle, Washington, USA
| | - Madison H Bondy
- Department of Anthropology, Emory University, Atlanta, Georgia, USA
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, California, USA
| | - Aric A Prather
- Department of Psychiatry, University of California, San Francisco, California, USA
| | - Brandon A Kohrt
- Department of Psychiatry and Behavioral Services, George Washington University, Washington, District of Columbia, USA
| | - Carol M Worthman
- Department of Anthropology, Emory University, Atlanta, Georgia, USA
| | - Dan T A Eisenberg
- Department of Anthropology, University of Washington, Seattle, Washington, USA.,Center for Studies in Demography and Ecology, Seattle, Washington, USA
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21
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Revuelta JM, Alconero-Camarero AR. Corazón de mujer. CIRUGIA CARDIOVASCULAR 2020. [DOI: 10.1016/j.circv.2020.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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22
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Rej PH, Gravlee CC, Mulligan CJ. Shortened telomere length is associated with unfair treatment attributed to race in African Americans living in Tallahassee, Florida. Am J Hum Biol 2019; 32:e23375. [PMID: 31867825 DOI: 10.1002/ajhb.23375] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 12/03/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Experiences of interpersonal discrimination are pervasive stressors in the lives of African Americans. Increased discrimination stress may cause premature aging. Telomere length (TL) is a plastic genetic trait that is an emerging indicator of cellular health and aging. Short TL is a risk factor for the earlier onset of disease. TL shortens with age, a process that may be accelerated by psychosocial stress. Our study explores the relationship between TL and experiences of discrimination in the form of self-reported unfair treatment (UT). METHODS Using a qPCR-based method, we measured TL in DNA from saliva samples provided by 135 African American adults from Tallahassee, FL. We developed discrimination measures using a modified survey that explores nine social domains of self-reported unfair treatment experienced both directly and indirectly. We used multiple regression to examine associations between UT and TL. RESULTS We found that racial discrimination in the form of self-reported unfair treatment attributed to race (UT-Race-Self) is inversely associated with TL. CONCLUSIONS The significant association between increased UT-Race-Self and shorter telomeres supports the hypothesis that psychosocial stress stemming from racial discrimination may affect TL. The potential impact of discrimination on TL may contribute to premature biological aging and racial health inequalities seen in African Americans.
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Affiliation(s)
- Peter H Rej
- Department of Anthropology, University of Washington, Seattle, Washington.,Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
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- Health Equity Alliance of Tallahassee Steering Committee, Tallahassee, Florida: James Bellamy, Qasimah Boston, Edward Holifield, Miaisha Mitchell, and Cynthia Seaborn
| | - Clarence C Gravlee
- Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
| | - Connie J Mulligan
- Department of Anthropology, University of Florida, Gainesville, Florida.,Genetics Institute, University of Florida, Gainesville, Florida
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23
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Sudyka J. Does Reproduction Shorten Telomeres? Towards Integrating Individual Quality with Life‐History Strategies in Telomere Biology. Bioessays 2019; 41:e1900095. [DOI: 10.1002/bies.201900095] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/03/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Joanna Sudyka
- Wild Urban Evolution and Ecology LabCentre of New Technologies (CeNT)University of Warsaw 02‐097 Warsaw Poland
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24
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León J, Sáenz JM, Artacho-Cordón F, Fernández MF, Martin-Olmedo P, Salamanca-Fernández E, Gómez-Peña C, Olea N, Arrebola JP. Contribution of sociodemographic, occupational, lifestyle and dietary characteristics to the oxidative stress microenvironment in adipose tissue. ENVIRONMENTAL RESEARCH 2019; 175:52-62. [PMID: 31102949 DOI: 10.1016/j.envres.2019.04.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/12/2019] [Accepted: 04/30/2019] [Indexed: 05/20/2023]
Abstract
The present study was conceived on the basis of the few previous reports suggesting a potential relevance of the oxidative stress microenvironment in the adipose tissue, a biological matrix which is closely related to the development of several chronic pathologies. Thus, our aim was to describe the levels of enzymatic and non-enzymatic antioxidants and markers of oxidative damage in adipose tissue samples from a Spanish cohort, as well as their main sociodemographic, lifestyle, and dietary predictors. The study was conducted in a subsample (n = 271 adults) of GraMo cohort, recruited in Granada (Southern Spain). A face-to-face questionnaire was used to gather data regarding sociodemographic characteristics, lifestyle, dietary habits, health status, and perceived exposure to chemicals. We analyzed adipose tissue levels of lipid peroxidation (TBARS), total superoxide dismutase (SOD) activity, heme oxygenase-1 (HO-1) activity, and glutathione cycle biomarkers. Potential predictors of oxidative stress markers were assessed using stepwise multivariable linear regression analyses. SOD and TBARS levels were mainly related to sociodemographic and occupational characteristics, while the components of the glutathione cycle and HO-1 were predominantly associated with dietary habits. Men showed significantly lower levels of oxidative stress levels than women. In the regression models including only women, the use of oral contraceptive and hormonal therapy was associated with lower levels of oxidative stress, while the number of children was positively associated with increased oxidative biomarkers. Our results suggest that adipose tissue is potentially important matrix for the assessment of oxidative stress, which can be affected by specific environmental factors. These findings might be relevant for public health.
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Affiliation(s)
- Josefa León
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario San Cecilio de Granada, Spain; CIBER en Enfermedades Hepáticas y Digestivas (CIBEREHD), Spain
| | - José M Sáenz
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain
| | - Francisco Artacho-Cordón
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; University of Granada, Radiology and Physical Medicine Department, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain.
| | - Mariana F Fernández
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; University of Granada, Radiology and Physical Medicine Department, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain
| | - Piedad Martin-Olmedo
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; Escuela Andaluza de Salud Pública, Granada, Spain
| | - Elena Salamanca-Fernández
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; Escuela Andaluza de Salud Pública, Granada, Spain
| | - Celia Gómez-Peña
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; Unidad de Gestión Clínica de Farmacia Hospitalaria, Hospital Universitario San Cecilio, Granada, Spain
| | - Nicolás Olea
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; University of Granada, Radiology and Physical Medicine Department, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain; Unidad de Gestión Clínica de Medicina Nuclear, Hospital Universitario San Cecilio de Granada, Granada, Spain
| | - Juan P Arrebola
- Instituto de Investigación Biosanitaria ibs.GRANADA, Spain; CIBER en Epidemiología y Salud Pública (CIBERESP), Spain; University of Granada, Department of Preventive Medicine and Public Health, Spain.
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25
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Eid RS, Chaiton JA, Lieblich SE, Bodnar TS, Weinberg J, Galea LA. Early and late effects of maternal experience on hippocampal neurogenesis, microglia, and the circulating cytokine milieu. Neurobiol Aging 2019; 78:1-17. [DOI: 10.1016/j.neurobiolaging.2019.01.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 01/03/2019] [Accepted: 01/21/2019] [Indexed: 01/13/2023]
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26
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Vasilopoulos E, Fragkiadaki P, Kalliora C, Fragou D, Docea AO, Vakonaki E, Tsoukalas D, Calina D, Buga AM, Georgiadis G, Mamoulakis C, Makrigiannakis A, Spandidos DA, Tsatsakis A. The association of female and male infertility with telomere length (Review). Int J Mol Med 2019; 44:375-389. [PMID: 31173155 PMCID: PMC6605974 DOI: 10.3892/ijmm.2019.4225] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 05/24/2019] [Indexed: 12/28/2022] Open
Abstract
Telomere length (TL) has long been associated with aging, as telomeres serve as protective caps of chromosomes, and are thus deeply involved in the preservation of genome integrity and are vital to cellular functions. Traditionally, a strong link connects aging and infertility in both sexes, with an earlier onset in females. Over the past decade, telomeres have attracted increasing attention due to the role they play in fertility. In this review, we investigated the potential positive or negative association between relative TL and different factors of female and male infertility. A systematic search of the PubMed database was conducted. Out of the 206 studies identified, 45 were reviewed as they fulfilled the criteria of validity and relevance. Following an analysis and a comparison of the study outcomes, several clear trends were observed. The majority of female infertility factors were associated with a shorter TL, with the exception of endometriosis, premature ovarian failure and clear cell carcinoma that were associated with a longer TL and polycystic ovary syndrome (PCOS), which revealed conflicting results among several studies, leading to ambiguous conclusions. Male infertility factors were associated with a shorter TL. Although this review can provide an outline of general trends in the association of TL with infertility factors, further epidemiological and original research studies are required to focus on investigating the basis of these varying lengths of telomeres.
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Affiliation(s)
| | - Persefoni Fragkiadaki
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Charikleia Kalliora
- Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Domniki Fragou
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Elena Vakonaki
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Dimitris Tsoukalas
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ana Maria Buga
- Department of Biochemistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - George Georgiadis
- Department of Urology, University General Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Charalampos Mamoulakis
- Department of Urology, University General Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Antonios Makrigiannakis
- Department of Obstetrics and Gynecology, University General Hospital of Heraklion, Medical School, University of Crete, 71003 Heraklion, Greece
| | - Demetrios A Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Aristidis Tsatsakis
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece
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27
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Rapaport T, Villaseñor FA, Altman RM, Nepomnaschy PA. Sex ratio and maternal age in a natural fertility, subsistence population: Daughters, sons, daughters. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 169:368-376. [DOI: 10.1002/ajpa.23838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Tomas Rapaport
- Maternal and Child Health Laboratory, Faculty of Health SciencesSimon Fraser University Burnaby British Columbia Canada
| | - Fernando A. Villaseñor
- Maternal and Child Health Laboratory, Faculty of Health SciencesSimon Fraser University Burnaby British Columbia Canada
- Department of Statistics and Actuarial ScienceSimon Fraser University Burnaby British Columbia Canada
| | - Rachel M. Altman
- Department of Statistics and Actuarial ScienceSimon Fraser University Burnaby British Columbia Canada
| | - Pablo A. Nepomnaschy
- Maternal and Child Health Laboratory, Faculty of Health SciencesSimon Fraser University Burnaby British Columbia Canada
- Crawford Laboratory of Evolutionary StudiesSimon Fraser University Burnaby British Columbia Canada
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28
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Pollack AZ, Rivers K, Ahrens KA. Parity associated with telomere length among US reproductive age women. Hum Reprod 2019; 33:736-744. [PMID: 29452389 DOI: 10.1093/humrep/dey024] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 01/24/2018] [Indexed: 11/14/2022] Open
Abstract
STUDY QUESTION Is telomere length related to parity among a nationally representative sample of US reproductive age women? SUMMARY ANSWER History of live birth was associated with shorter telomere length. WHAT IS KNOWN ALREADY Shorter telomeres have been linked with a range of chronic health conditions and mortality and parity has been associated with health indicators. However, there is a lack of research on how parity relates to telomere length. STUDY DESIGN, SIZE, DURATION This nationally representative, cross-sectional study included 1954 women from the National Health and Nutrition Examination Survey, 1999-2002, the only survey period which includes measurement of telomere length. PARTICIPANTS/MATERIALS, SETTING, METHODS Women aged 20-44 were included. Parity, defined as number of previous live births, was ascertained by questionnaire. Leukocyte telomere length was measured by polymerase chain reaction and reported as a ratio in relation to standard reference DNA (T/S ratio). The relationship between leukocyte T/S ratio and parity was examined using survey weighted linear regression. Models were adjusted for race/ethnicity, age, BMI, income-to-poverty ratio, education, early age at menarche and smoking status. MAIN RESULTS AND THE ROLE OF CHANCE Among reproductive age women in the US, the adjusted mean leukocyte T/S ratio was 4.2% (95% CI: 0.9, 7.3) shorter in parous compared with nulliparous women. Parity was associated with 116 fewer base pairs (95% CI: 26, 204) on average, using estimated coefficients from the adjusted linear regression models and mean covariate values. LIMITATIONS REASONS FOR CAUTION This study was cross-sectional and therefore was unable to establish temporality. The dataset lacked information on social factors, stress and fertility status, which may help explain these findings. Only two previous studies have examined this question and our findings should be interpreted with caution. WIDER IMPLICATIONS OF THE FINDINGS These findings in a nationally representative sample of US reproductive age women suggest that history of live birth may be associated with accelerated cellular aging. The magnitude of the observed association was greater than that of the impact of smoking or obesity on telomere length, suggesting that parity may have an independent influence on cellular aging and warrant further study. STUDY FUNDING/COMPETING INTEREST(S) The study was funded in part by the Undergraduate Research Scholars Program at George Mason University. The authors have no conflicts of interest. TRIAL REGISTRATION NUMBER NA.
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Affiliation(s)
- A Z Pollack
- Department of Global and Community Health, College of Health and Human Services, George Mason University, 4400 University Drive MS5B7, Fairfax, VA 22030, USA
| | - K Rivers
- Department of Global and Community Health, College of Health and Human Services, George Mason University, 4400 University Drive MS5B7, Fairfax, VA 22030, USA
| | - K A Ahrens
- Office of Population Affairs, Office of the Assistant Secretary for Health, Department of Health and Human Services, 1101 Wootton Parkway, Suite 700, Rockville, MD 20852, USA
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29
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Effects of pregnancy experience on ovarian senescence and longevity in Hatano rats bred for high- and low-avoidance learning. Exp Gerontol 2018; 117:91-98. [PMID: 30553773 DOI: 10.1016/j.exger.2018.11.015] [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: 03/17/2018] [Revised: 10/09/2018] [Accepted: 11/22/2018] [Indexed: 11/20/2022]
Abstract
We investigated the effects of pregnancy experience on ovarian senescence and longevity using two inbred strains of Hatano rats. These strains have been selectively bred for high- and low-avoidance animals (HAA and LAA, respectively), but the HAA line has a slower onset of ovarian senescence and a shorter lifespan compared with the LAA line. The onset of abnormal estrous cycles and survival curves were compared between nulliparous and parous rats in each line. In the HAA line, pregnancy experience did not change the onset of ovarian senescence but increased longevity. This suggests that a pituitary tumor, which is a causal factor for accelerated mortality in this line, developed slowly in parous rats. In the LAA line, pregnancy experience delayed the onset of ovarian senescence and reduced the incidence of mammary tumors but did not increase longevity because of an increased frequency of constipation with megacolon. These data suggest that the effects of pregnancy experience on ovarian senescence and longevity depend on the reproductive characteristics of the rat strains.
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30
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Thoma MV, Forstmeier S, Schmid R, Kellner O, Xepapadakos F, Gasser US, Blessing A, Ropohl A, Bieri-Brüning G, Debeer D, Maercker A. Preliminary evidence for an increased likelihood of a stable trajectory in mild cognitive impairment in individuals with higher motivational abilities. BMC Geriatr 2018; 18:181. [PMID: 30103681 PMCID: PMC6090725 DOI: 10.1186/s12877-018-0865-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 07/25/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Motivational abilities (MA), that describe skills in relation to goal-oriented behavior, have recently been found to be associated with neuropathological aging. Here we examine the impact of MA on the long-term course of mild cognitive impairment (MCI). METHODS We followed-up N = 64 individuals diagnosed with MCI (Mage = 73 years, 44% female) for 3 years. MA were assessed by long-term informants of the participants using two scales: motivation and decision regulation [Volitional Components Questionnaires, VCQ, (Kuhl and Fuhrmann, Decomposing self-regulation and self-control: the volitional components inventory, 1998)]. Cognitive abilities were assessed with the Mini Mental State Examination (J Psychiatr Res 12:189-98, 1975). Survival analyses and multilevel modeling (MLM) were applied to determine the predicting effect of informant-rated MA at baseline on the likelihood of MCI stability and on the trajectory of cognitive abilities. RESULTS Fifty percent (n = 32) of the MCI participants remained stable, while 32.8% (n = 21) and 17.2% (n = 11) converted to Alzheimer's disease (AD) or dropped-out, respectively. Survival analyses revealed that MCI cases with higher-rated MA at baseline were more likely to exert a stable course in MCI over 3 years (p = 0.036) when controlling for demographic characteristics and executive function. MLM analyses indicated that higher informant-rated MA at baseline were significantly related to higher cognitive abilities, even when controlling for MCI subtype (p = 0.030). CONCLUSIONS This study provides preliminary longitudinal evidence for a lower risk of conversion to AD and higher cognitive abilities by higher rated MA at an early stage of MCI.
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Affiliation(s)
- Myriam V. Thoma
- University of Zurich, Binzmuehlestr, 14, 8050 Zurich, Switzerland
- University Research Priority Program “Dynamics of Healthy Aging”, University of Zurich, Zurich, Switzerland
- Psychopathology and Clinical Intervention, University of Zurich, Binzmuehlestr. 14/17, CH-8050 Zurich, Switzerland
| | - Simon Forstmeier
- University of Zurich, Binzmuehlestr, 14, 8050 Zurich, Switzerland
- University of Siegen, Faculty II, Developmental Psychology, Adolf-Reichwein-Str. 2, 57068 Siegen, Germany
| | - Roger Schmid
- Psychiatrische Klinik Zugersee, Zug, Switzerland
| | - Oliver Kellner
- Integrierte Psychiatrie Winterthur, Winterthur, Switzerland
- Present Address: Alterspsychiatrische Praxis, Buehlach, Switzerland
| | | | | | | | - Axel Ropohl
- Sanatorium Kilchberg AG, Kilchberg, Switzerland
- Present Address: KMG – Kompetenz mentale Gesundheit GmbH, Baar, Switzerland
| | | | - Dries Debeer
- University of Zurich, Binzmuehlestr, 14, 8050 Zurich, Switzerland
| | - Andreas Maercker
- University of Zurich, Binzmuehlestr, 14, 8050 Zurich, Switzerland
- University Research Priority Program “Dynamics of Healthy Aging”, University of Zurich, Zurich, Switzerland
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31
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Ryan CP, Hayes MG, Lee NR, McDade TW, Jones MJ, Kobor MS, Kuzawa CW, Eisenberg DTA. Reproduction predicts shorter telomeres and epigenetic age acceleration among young adult women. Sci Rep 2018; 8:11100. [PMID: 30038336 PMCID: PMC6056536 DOI: 10.1038/s41598-018-29486-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 07/10/2018] [Indexed: 01/10/2023] Open
Abstract
Evolutionary theory predicts that reproduction entails costs that detract from somatic maintenance, accelerating biological aging. Despite support from studies in human and non-human animals, mechanisms linking 'costs of reproduction' (CoR) to aging are poorly understood. Human pregnancy is characterized by major alterations in metabolic regulation, oxidative stress, and immune cell proliferation. We hypothesized that these adaptations could accelerate blood-derived cellular aging. To test this hypothesis, we examined gravidity in relation to telomere length (TL, n = 821) and DNA-methylation age (DNAmAge, n = 397) in a cohort of young (20-22 year-old) Filipino women. Age-corrected TL and accelerated DNAmAge both predict age-related morbidity and mortality, and provide markers of mitotic and non-mitotic cellular aging, respectively. Consistent with theoretical predictions, TL decreased (p = 0.031) and DNAmAge increased (p = 0.007) with gravidity, a relationship that was not contingent upon resource availability. Neither biomarker was associated with subsequent fertility (both p > 0.3), broadly consistent with a causal effect of gravidity on cellular aging. Our findings provide evidence that reproduction in women carries costs in the form of accelerated aging through two independent cellular pathways.
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Affiliation(s)
- Calen P Ryan
- Department of Anthropology, Northwestern University, Evanston, IL, 60208, USA.
| | - M Geoffrey Hayes
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Medicine, Northwestern University, Feinberg School of Medicine, Chicago, IL, 60611, USA
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Nanette R Lee
- Office of Population Studies Foundation Inc., Cebu City, Philippines
- Department of Anthropology, Sociology, and History, University of San Carlos, Cebu City, Philippines
| | - Thomas W McDade
- Department of Anthropology, Northwestern University, Evanston, IL, 60208, USA
- Institute for Policy Research, Northwestern University, Evanston, IL, 60208, USA
- Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, ON, M5G 1Z8, Canada
| | - Meaghan J Jones
- BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, V5Z 4H4, Canada
| | - Michael S Kobor
- Child and Brain Development Program, Canadian Institute for Advanced Research, Toronto, ON, M5G 1Z8, Canada
- BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, V5Z 4H4, Canada
| | - Christopher W Kuzawa
- Department of Anthropology, Northwestern University, Evanston, IL, 60208, USA
- Institute for Policy Research, Northwestern University, Evanston, IL, 60208, USA
| | - Dan T A Eisenberg
- Department of Anthropology, University of Washington, Seattle, WA, 98195, USA.
- Center for Studies in Demography and Ecology, University of Washington, Seattle, WA, 98195, USA.
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Relation of long-term patterns in caregiving activity and depressive symptoms to telomere length in older women. Psychoneuroendocrinology 2018; 89:161-167. [PMID: 29414028 PMCID: PMC5878722 DOI: 10.1016/j.psyneuen.2018.01.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 12/11/2017] [Accepted: 01/08/2018] [Indexed: 01/03/2023]
Abstract
BACKGROUND Research links psychological stress to accelerated cellular aging. Here we examined whether long-term patterns of depression and caregiving burden, forms of chronic psychological stress, were associated with shorter telomere length, a biomarker of cellular aging. METHODS The study included 1250 healthy older women (mean: 68.0; range: 60-81 years) in the Nurses' Health Study. Long-term patterns in depressive symptoms and caregiving activity (separated into care of children/grandchildren vs. ill or disabled family members/others) incorporated questionnaire data between 1992 and 2000; relative leukocyte telomere lengths (LTLs) were measured in 2000-2001. Least-squares means LTL z-scores were calculated across categories of depression patterns and caregiving intensity. RESULTS Six empirically-derived latent classes of depressive symptom trajectories were identified: minimal-stable (63.7%), mild-worsening (3.9%), subthreshold-improving (22.8%), subthreshold-worsening (2.7%), clinical range depressive-improving (6.2%), and clinical range depressive-persistent (0.6%). After collapsing trajectory patterns into 4 groups (combining those with minimal and mild symptoms into one group and those with clinical range depressive symptoms into one group) due to very small sample sizes in some groups, we observed marginal associations (p = 0.07): e.g., the least-squares means LTL z-scores were lowest (-0.08; 95% CI: -0.22 to 0.06) for the clinical range depressive symptoms group and highest (0.12; 0.04-0.20) for the subthreshold-improving group (Tukey's post-hoc pairwise p = 0.07). With six depressive symptom trajectories, no significant associations were observed with regard to telomere lengths. There were no significant associations between caregiving intensity and LTLs. CONCLUSIONS There were no associations between long-term patterns of caregiving burden and telomere lengths among older women. Possible differences in telomere lengths by types of long-term depressive symptom trajectories may warrant further investigation.
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Lane-Cordova AD, Puterman E, Gunderson EP, Chan C, Hou L, Carnethon M. Gravidity is not associated with telomere length in a biracial cohort of middle-aged women: The Coronary Artery Risk Development in Young Adults (CARDIA) study. PLoS One 2017; 12:e0186495. [PMID: 29049398 PMCID: PMC5648190 DOI: 10.1371/journal.pone.0186495] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 10/01/2017] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE Having experienced 2-3 births is associated with reduced mortality versus women with <2 or ≥4 births. The effect of 2-3 births on lifespan may be associated with delayed cellular aging. We hypothesized telomere length, a marker of cellular aging, would be longer in women who had 2-3 pregnancies. METHODS Leukocyte telomere length was measured using quantitative real-time polymerase chain reaction in 620 women in CARDIA at the year 15 and 20 exams, expressed as the ratio of telomere repeat copy number to single-copy gene copy number (T/S). Number of pregnancies at the time of telomere length measurement was obtained (mean age = 41±0.1 years, average gravidity = 2.64±0.1 pregnancies). Participants were divided into 4 groups by number of pregnancies: 0, 1, 2-3, and ≥4, to test for differences in telomere length by gravidity group. RESULTS The mean and SD for telomere length was 0.98 ± 0.20 T/S in the whole cohort. There were no differences in mean telomere length between groups; 0.98±0.02 T/S in women with 0 pregnancies, 1.01±0.02 T/S in women with 1 pregnancy, 0.97±0.01 T/S in women with 2-3 pregnancies, and 0.99±0.02 T/S in women with ≥4 pregnancies (p = 0.51). We defined high-risk (shorter) telomere length as ≤25th percentile, and low-risk (longer) telomere length as ≥75 percentile. There were no differences in the prevalence of high-risk or low-risk telomere length between gravidity groups. CONCLUSIONS Gravidity was not associated with telomere length in early middle age; the protective association of 2-3 births may act through other mechanisms.
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Affiliation(s)
- Abbi D. Lane-Cordova
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Eli Puterman
- School of Kinesiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Erica P. Gunderson
- Division of Research, Kaiser Permanente Northern California, Oakland, California, United States of America
| | - Cheeling Chan
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Lifang Hou
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
| | - Mercedes Carnethon
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, United States of America
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Ziomkiewicz A, Frumkin A, Zhang Y, Sancilio A, Bribiescas RG. The cost of reproduction in women: Reproductive effort and oxidative stress in premenopausal and postmenopausal American women. Am J Hum Biol 2017; 30. [PMID: 28984395 DOI: 10.1002/ajhb.23069] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 09/06/2017] [Accepted: 09/19/2017] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES Life history theory predicts a trade-off between female investment in reproduction and somatic maintenance, which can result in accelerated senescence. Oxidative stress has been shown to be a causal physiological mechanism for accelerated aging and a possible contributor to this trade-off. We aimed to test the hypothesis for the existence of significant associations between measures of reproductive effort and the level of oxidative stress biomarkers in premenopausal and postmenopausal American women. METHODS Serum samples and questionnaire data were collected from 63 premenopausal and postmenopausal women (mean age 53.4 years), controls in the Connecticut Thyroid Health Study, between May 2010 and December 2013. Samples were analyzed for levels of 8-OHdG and Cu/Zn-SOD using immunoassay method. RESULTS Levels of oxidative damage (8-OHdG) but not oxidative defense (Cu/Zn-SOD) were negatively associated with parity and number of sons in premenopausal women (r = -0.52 for parity, r = -0.52 for number of sons, P < .01). Together, measures of reproductive effort, women's BMI, age, and menopausal status explained around 15% of variance in level of 8-OHdG. No association between reproductive effort characteristics and oxidative damage was found for postmenopausal women. CONCLUSIONS We found no evidence of a trade-off between somatic maintenance as measured by 8-OHdG and reproductive effort in women from this American population. On the contrary, higher gravidity and parity in premenopausal women was associated with lower damage to cellular DNA caused by oxidative stress. These results highlight the importance of population variation and environmental conditions when testing the occurrence of life-history trade-offs.
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Affiliation(s)
- Anna Ziomkiewicz
- Polish Academy of Sciences, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Wroclaw, 50-449, Poland.,Department of Anthropology, Yale University, New Haven, Connecticut 06511
| | - Amara Frumkin
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, Connecticut 06511
| | - Yawei Zhang
- Department of Surgery, Yale School of Medicine, New Haven, Connecticut 06510.,Yale School of Public Health, Department of Environmental Health Sciences, New Haven, Connecticut 06510
| | - Amelia Sancilio
- Department of Anthropology, Yale University, New Haven, Connecticut 06511
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Olsson M, Wapstra E, Friesen CR. Evolutionary ecology of telomeres: a review. Ann N Y Acad Sci 2017; 1422:5-28. [DOI: 10.1111/nyas.13443] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/30/2017] [Accepted: 07/06/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Mats Olsson
- Department of Biological and Environmental Sciences University of Gothenburg Gothenburg Sweden
- School of Biological Sciences The University of Wollongong Wollongong New South Wales Australia
| | - Erik Wapstra
- School of Biological Sciences University of Tasmania Hobart Tasmania Australia
| | - Christopher R. Friesen
- School of Life and Environmental Sciences University of Sydney Sydney New South Wales Australia
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Abstract
ABBREVIATIONS AMP = adenosine monophosphate CETP = cholesteryl ester transfer protein FOXO = Forkhead box O GH = growth hormone HDL = high-density lipoprotein IGF-1 = insulin-like growth factor 1 LDL = low-density lipoprotein miRNA = microRNA mTOR = mammalian target of rapamycin SIRT = sirtuin T4 = thyroxine TSH = thyroid-stimulating hormone "The Moving Finger writes; and, having writ, Moves on: nor all thy Piety nor Wit Shall lure it back to cancel half a Line, Nor all thy Tears wash out a Word of it." Omar Khayyam ( 1 ).
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Jones HJ, Janson SL, Lee KA. Leukocyte Telomere Length in Postmenopausal Women. J Obstet Gynecol Neonatal Nurs 2017; 46:567-575. [PMID: 28535365 PMCID: PMC5609731 DOI: 10.1016/j.jogn.2017.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/01/2017] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE To compare leukocyte telomere length (LTL) by race and describe demographic, health, and psychosocial factors associated with LTL in postmenopausal women. DESIGN Descriptive study with comparative analyses and correlations. SETTING Data were collected at the University of California-San Francisco, San Francisco Clinical and Translational Science Institute. PARTICIPANTS Thirty-nine African American and White postmenopausal women between 58 and 65 years of age (mean age = 61.3 ± 1.83 years). METHODS Measures included demographics, blood pressure, anthropometrics, scores on the Perceived Stress Scale and the Center for Epidemiologic Studies-Depression, and blood samples for LTL. RESULTS African American women (n = 14) had greater PSS-10 and CES-D scores, greater blood pressure, and greater body mass index than White women (n = 25; p < .05), but LTL did not significantly differ between the two groups. Age was inversely related to LTL (r = -.355, p < .05). After age and race were controlled, fewer children (p = .005) and greater perceived stress (p = .036) were related to shorter LTL. CONCLUSION Findings from this small sample support the association between age and LTL. The association between perceived stress, number of children, and shorter LTL in postmenopausal women requires further research and replication of findings in a larger, more diverse sample.
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Barha CK, Salvante KG, Hanna CW, Wilson SL, Robinson WP, Altman RM, Nepomnaschy PA. Child mortality, hypothalamic-pituitary-adrenal axis activity and cellular aging in mothers. PLoS One 2017; 12:e0177869. [PMID: 28542264 PMCID: PMC5444612 DOI: 10.1371/journal.pone.0177869] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 04/25/2017] [Indexed: 12/11/2022] Open
Abstract
Psychological challenges, including traumatic events, have been hypothesized to increase the age-related pace of biological aging. Here we test the hypothesis that psychological challenges can affect the pace of telomere attrition, a marker of cellular aging, using data from an ongoing longitudinal-cohort study of Kaqchikel Mayan women living in a population with a high frequency of child mortality, a traumatic life event. Specifically, we evaluate the associations between child mortality, maternal telomere length and the mothers’ hypothalamic-pituitary-adrenal axis (HPAA), or stress axis, activity. Child mortality data were collected in 2000 and 2013. HPAA activity was assessed by quantifying cortisol levels in first morning urinary specimens collected every other day for seven weeks in 2013. Telomere length (TL) was quantified using qPCR in 55 women from buccal specimens collected in 2013. Results: Shorter TL with increasing age was only observed in women who experienced child mortality (p = 0.015). Women with higher average basal cortisol (p = 0.007) and greater within-individual variation (standard deviation) in basal cortisol (p = 0.053) presented shorter TL. Non-parametric bootstrapping to estimate mediation effects suggests that HPAA activity mediates the effect of child mortality on TL. Our results are, thus, consistent with the hypothesis that traumatic events can influence cellular aging and that HPAA activity may play a mediatory role. Future large-scale longitudinal studies are necessary to confirm our results and further explore the role of the HPAA in cellular aging, as well as to advance our understanding of the underlying mechanisms involved.
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Affiliation(s)
- Cindy K. Barha
- Maternal and Child Health Laboratory, Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Katrina G. Salvante
- Maternal and Child Health Laboratory, Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
- Human Evolutionary Studies Program, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Courtney W. Hanna
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
- Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - Samantha L. Wilson
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
- Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - Wendy P. Robinson
- Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada
- Child and Family Research Institute, Vancouver, British Columbia, Canada
| | - Rachel M. Altman
- Statistics and Actuarial Science, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Pablo A. Nepomnaschy
- Maternal and Child Health Laboratory, Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
- Human Evolutionary Studies Program, Simon Fraser University, Burnaby, British Columbia, Canada
- Child and Family Research Institute, Vancouver, British Columbia, Canada
- * E-mail:
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Early-life stress and reproductive cost: A two-hit developmental model of accelerated aging? Med Hypotheses 2016; 90:41-7. [DOI: 10.1016/j.mehy.2016.03.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 02/28/2016] [Accepted: 03/05/2016] [Indexed: 01/28/2023]
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