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Duarte M, Pedrosa SS, Khusial PR, Madureira AR. Exploring the interplay between stress mediators and skin microbiota in shaping age-related hallmarks: A review. Mech Ageing Dev 2024; 220:111956. [PMID: 38906383 DOI: 10.1016/j.mad.2024.111956] [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: 02/16/2024] [Revised: 05/27/2024] [Accepted: 06/14/2024] [Indexed: 06/23/2024]
Abstract
Psychological stress is a major contributing factor to several health problems (e.g., depression, cardiovascular disease). Around 35 % of the world's population suffers from it, including younger generations. Physiologically, stress manifests through neuroendocrine pathways (Hypothalamic-Pituitary-Adrenal (HPA) axis and Sympathetic-Adrenal-Medullary (SAM) system) which culminate in the production of stress mediators like cortisol, epinephrine and norepinephrine. Stress and its mediators have been associated to body aging, through molecular mechanisms such as telomere attrition, mitochondrial dysfunction, cellular senescence, chronic inflammation, and dysbiosis, among others. Regarding its impact in the skin, stress impacts its structural integrity and physiological function. Despite this review focusing on several hallmarks of aging, emphasis was placed on skin microbiota dysbiosis. In this line, several studies, comprising different age groups, demographic contexts and body sites, have reported skin microbiota alterations associated with aging, and some effects of stress mediators on skin microbiota have also been reviewed in this paper. From a different perspective, since it is not a "traditional" stress mediator, oxytocin, a cortisol antagonist, has been related to glucorticoids inhibition and to display positive effects on cellular aging. This hormone dysregulation has been associated to psychological issues such as depression, whereas its upregulation has been linked to positive social interaction.
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Affiliation(s)
- Marco Duarte
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal
| | - Sílvia Santos Pedrosa
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal
| | - P Raaj Khusial
- Amyris Biotech INC, 5885 Hollis St Ste 100, Emeryville, CA 94608-2405, USA
| | - Ana Raquel Madureira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto 4169-005, Portugal.
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Abstract
Social determinants of health (SDoH) are reflected in how people live (access to health care, economic stability, built environment, food security, climate), learn (the educational environment), work (occupational environment), and play/socialize (social context and digital domain). All of these day-to-day conditions play a vital role in a patient's overall health, and a primary care provider should be prepared to understand their role to screen, assess, and address SDoH in clinical practice.
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Affiliation(s)
- Vincent Morelli
- Department of Family & Community Medicine, Meharry Medical College, 3rd Floor, Old Hospital Building, 1005 Dr. D. B. Todd, Jr., Boulevard, Nashville, TN 37208-3599, USA.
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3
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Lyons CE, Razzoli M, Bartolomucci A. The impact of life stress on hallmarks of aging and accelerated senescence: Connections in sickness and in health. Neurosci Biobehav Rev 2023; 153:105359. [PMID: 37586578 PMCID: PMC10592082 DOI: 10.1016/j.neubiorev.2023.105359] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/03/2023] [Accepted: 08/10/2023] [Indexed: 08/18/2023]
Abstract
Chronic stress is a risk factor for numerous aging-related diseases and has been shown to shorten lifespan in humans and other social mammals. Yet how life stress causes such a vast range of diseases is still largely unclear. In recent years, the impact of stress on health and aging has been increasingly associated with the dysregulation of the so-called hallmarks of aging. These are basic biological mechanisms that influence intrinsic cellular functions and whose alteration can lead to accelerated aging. Here, we review correlational and experimental literature (primarily focusing on evidence from humans and murine models) on the contribution of life stress - particularly stress derived from adverse social environments - to trigger hallmarks of aging, including cellular senescence, sterile inflammation, telomere shortening, production of reactive oxygen species, DNA damage, and epigenetic changes. We also evaluate the validity of stress-induced senescence and accelerated aging as an etiopathological proposition. Finally, we highlight current gaps of knowledge and future directions for the field, and discuss perspectives for translational geroscience.
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Affiliation(s)
- Carey E Lyons
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA; Graduate Program in Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Maria Razzoli
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA
| | - Alessandro Bartolomucci
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA; Department of Medicine and Surgery, University of Parma, Parma, Italy.
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Riahi SM, Yousefi A, Saeedi F, Martin SS. Associations of emotional social support, depressive symptoms, chronic stress, and anxiety with hard cardiovascular disease events in the United States: the multi-ethnic study of atherosclerosis (MESA). BMC Cardiovasc Disord 2023; 23:236. [PMID: 37142978 PMCID: PMC10161545 DOI: 10.1186/s12872-023-03195-x] [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: 10/29/2022] [Accepted: 03/21/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Cardiovascular diseases (CVDs) are a major cause of morbidity and mortality around the globe and psychosocial factors are not sufficiently understood. AIM In the current study, we aimed to evaluate the role of different psychosocial factors including depressive symptoms, chronic stress, anxiety, and emotional social support (ESS) on the incidence of hard CVD (HCVD). METHODS We examined the association of psychosocial factors and HCVD incidence amongst 6,779 participants in the Multi-Ethnic Study of Atherosclerosis (MESA). Using physician reviewers' adjudication of CVD events incident, depressive symptoms, chronic stress, anxiety, emotional social support scores were measured by validated scales. We used Cox proportional Hazards (PH) models with psychosocial factors in several of the following approaches: (1) Continuous; (2) categorical; and (3) spline approach. No violation of the PH was found. The model with the lowest AIC value was chosen. RESULTS Over an 8.46-year median follow-up period, 370 participants experienced HCVD. There was not a statistically significant association between anxiety and HCVD (95%CI) for the highest versus the lowest category [HR = 1.51 (0.80-2.86)]. Each one point higher score for chronic stress (HR, 1.18; 95% CI, 1.08-1.29) and depressive symptoms (HR, 1.02; 95% CI, 1.01-1.03) was associated with a higher risk of HCVD in separate models. In contrary, emotional social support (HR, 0.98; 95% CI, 0.96-0.99) was linked with a lower risk of HCVD. CONCLUSIONS Higher levels of chronic stress is associated with greater risk of incident HCVD whereas ESS has a protective association.
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Affiliation(s)
- Seyed Mohammad Riahi
- Cardiovascular Diseases Research Center, Department of Epidemiology and Biostatistics, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran.
| | - Ahmad Yousefi
- PhD in Clinical Psychology, Department of Clinical Psychology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farhad Saeedi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Seth Shay Martin
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Baltimore, MD, USA
- Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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5
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Sumner JA, Gao X, Gambazza S, Dye CK, Colich NL, Baccarelli AA, Uddin M, McLaughlin KA. Stressful life events and accelerated biological aging over time in youths. Psychoneuroendocrinology 2023; 151:106058. [PMID: 36827906 PMCID: PMC10364461 DOI: 10.1016/j.psyneuen.2023.106058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/20/2023]
Abstract
Experiencing adversity in childhood and adolescence, including stressful life events (SLEs), may accelerate the pace of development, leading to adverse mental and physical health. However, most research on adverse early experiences and biological aging (BA) in youths relies on cross-sectional designs. In 171 youths followed for approximately 2 years, we examined if SLEs over follow-up predicted rate of change in two BA metrics: epigenetic age and Tanner stage. We also investigated if rate of change in BA was associated with changes in depressive symptoms over time. Youths aged 8-16 years at baseline self-reported Tanner stage and depressive symptoms at baseline and follow-up and provided saliva samples for DNA at both assessments. Horvath epigenetic age estimates were derived from DNA methylation data measured with the Illumina EPIC array. At follow-up, contextual threat interviews were administered to youths and caregivers to assess youths' experiences of past-year SLEs. Interviews were objectively coded by an independent rating team to generate a SLE impact score, reflecting the severity of all SLEs occurring over the prior year. Rate of change in BA metrics was operationalized as change in epigenetic age or Tanner stage as a function of time between assessments. Higher objective SLE impact scores over follow-up were related to a greater rate of change in epigenetic age (β = 0.21, p = .043). Additionally, among youths with lower-but not higher-Tanner stage at baseline, there was a positive association of SLE impact scores with rate of change in Tanner stage (Baseline Tanner Stage × SLE Impact Score interaction: β = - 0.21, p = .011). A greater rate of change in epigenetic age was also associated with higher depressive symptom levels at follow-up, adjusting for baseline symptoms (β = 0.15, p = .043). Associations with epigenetic age were similar, although slightly attenuated, when adjusting for epithelial (buccal) cell proportions. Whereas much research in youths has focused on severe experiences of early adversity, we demonstrate that more commonly experienced SLEs during adolescence may also contribute to accelerated BA. Further research is needed to understand the long-term consequences of changes in BA metrics for health.
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Affiliation(s)
- Jennifer A Sumner
- Department of Psychology, University of California, Los Angeles, Psychology Building 1285, Box 951563, Los Angeles, CA 90095, USA.
| | - Xu Gao
- Department of Occupational and Environmental Health Sciences, Peking University, Xueyuan Rd. 38, Haidian District, Beijing, China; Department of Environmental Health Sciences, Columbia Mailman School of Public Health, 722 W. 168th Street, New York, NY 10032, USA
| | - Simone Gambazza
- Department of Clinical Sciences and Community Health, University of Milan, via Celoria 22, 20133 Milan, Italy; Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Healthcare Professions Department, via Francesco Sforza, 35, 20122 Milan, Italy
| | - Christian K Dye
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, 722 W. 168th Street, New York, NY 10032, USA
| | - Natalie L Colich
- Department of Psychology, Harvard University, William James Hall, 1270, 33 Kirkland Street, Cambridge, MA 02138, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, 722 W. 168th Street, New York, NY 10032, USA
| | - Monica Uddin
- Genomics Program, University of South Florida, College of Public Health, 12901 Bruce B. Downs Blvd, Tampa, FL 33612, USA
| | - Katie A McLaughlin
- Department of Psychology, Harvard University, William James Hall, 1270, 33 Kirkland Street, Cambridge, MA 02138, USA
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Moyers SA, Hagger MS. Physical Activity and Cortisol Regulation: A Meta-Analysis. Biol Psychol 2023; 179:108548. [PMID: 37001634 DOI: 10.1016/j.biopsycho.2023.108548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023]
Abstract
Physical activity participation is associated with effective stress coping, indicated by decreases in both physiological stress reactivity and perceived stress. Quantifying the effect of physical activity on the diurnal regulation of one key physiological stress indicator, the stress hormone, cortisol, across studies may demonstrate the extent to which physical activity participation is associated with diurnal HPA axis regulation. We meta-analyzed studies examining relations between physical activity participation and indices of HPA axis regulation: the diurnal cortisol slope and the cortisol awakening response. We also examined moderators of the relation. The analysis revealed a small, non-zero negative averaged correlation between physical activity and the diurnal cortisol slope (r = -0.043, 95% CI [-0.080, -0.004]). Examination of sample sociodemographic differences, study design characteristics, cortisol measurement methods, and physical activity variables as moderators revealed few effects on the relation between physical activity and diurnal cortisol slope. We did not observe lower levels of variability in the mean cortisol awakening response at higher levels of physical activity participation, and moderator analyses showed little evidence of reductions in heterogeneity for this effect. We found some evidence of systematic publication bias. Findings suggest higher physical activity is associated with a steeper diurnal cortisol slope. However, the cortisol awakening response did not differ by physical activity level. Future studies testing the physical activity and cortisol regulation association should use standardized physical activity measures, follow guidelines for better quality cortisol sampling collection and analysis, and test relations in large-scale empirical studies to confirm the direction and causality of the effect.
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Affiliation(s)
- Susette A Moyers
- Department of Psychological Sciences, University of California, Merced, USA; Center for Rural Health, Oklahoma State University Center for Health Sciences, Tulsa, OK, USA
| | - Martin S Hagger
- Department of Psychological Sciences, University of California, Merced, USA; Health Sciences Research Institute, University of California, Merced, USA; Faculty of Sport and Health Sciences, University of Jyväskylä, Finland; School of Applied Psychology, Griffith University, Australia
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7
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Sabot D, Lovegrove R, Stapleton P. The association between sleep quality and telomere length: A systematic literature review. Brain Behav Immun Health 2023; 28:100577. [PMID: 36691437 PMCID: PMC9860369 DOI: 10.1016/j.bbih.2022.100577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 12/20/2022] [Indexed: 01/10/2023] Open
Abstract
Several sleep parameters present an elevated risk for processes that contribute to cellular aging. Short sleep duration, sleep apnoea, and insomnia are significantly associated with shorter telomeres, a biological marker of cellular aging. However, there has been no review or analysis of studies that have examined the association between the psychological construct of sleep quality and telomere length. The present study aimed to provide a systematic review of the association between sleep quality and telomere length. A systematic review of English articles was conducted using MEDLINE/PubMed, PsycINFO, Google Scholar, and Web of Science electronic databases, with the final search conducted on 3rd September 2021. Search terms included sleep quality, poor sleep, insomnia, sleep difficulties, sleep issue*, non-restorative sleep, telomere*, cellular aging, and immune cell telomere length. Study eligibility criteria included human participants aged 18 years or older and a reproducible methodology. Study appraisal and synthesis were completed using a systematic search in line with a PICOS approach (P = Patient, problem, or population; I = Intervention, prognostic factor, exposure; C = Comparison, control, or comparator; O = Outcomes; S = Study designs). Twenty-two studies met review inclusion criteria. Qualitative synthesis of the literature indicated insufficient evidence overall to support a significant association between sleep quality and telomere length. Limitations across studies were addressed, such as the assessment of examined constructs. Findings highlight important targets for future research, including the standardised operationalisation of the sleep quality construct and experimental study designs. Research in this area has clinical significance by identifying possible mechanisms that increase the risk for age-related disease and mortality. PROSPERO Registration No.: CRD 42021233139.
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Affiliation(s)
- Debbie Sabot
- School of Psychology, Faculty of Society and Design, Bond University, Australia
| | - Rhianna Lovegrove
- School of Psychology, Faculty of Society and Design, Bond University, Australia
| | - Peta Stapleton
- School of Psychology, Faculty of Society and Design, Bond University, Australia
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Khajavi A, Radvar M, Moeintaghavi A. Socioeconomic determinants of periodontitis. Periodontol 2000 2022; 90:13-44. [PMID: 35950737 DOI: 10.1111/prd.12448] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Amin Khajavi
- Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrdad Radvar
- Department of Periodontology, Mashhad Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Moeintaghavi
- Department of Periodontology, Mashhad University of Medical Sciences, Mashhad, Iran
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Polsky LR, Rentscher KE, Carroll JE. Stress-induced biological aging: A review and guide for research priorities. Brain Behav Immun 2022; 104:97-109. [PMID: 35661679 PMCID: PMC10243290 DOI: 10.1016/j.bbi.2022.05.016] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 04/27/2022] [Accepted: 05/29/2022] [Indexed: 01/13/2023] Open
Abstract
Exposure to chronic adverse conditions, and the resultant activation of the neurobiological response cascade, has been associated with an increased risk of early onset of age-related disease and, recently, with an older biological age. This body of research has led to the hypothesis that exposure to stressful life experiences, when occurring repeatedly or over a prolonged period, may accelerate the rate at which the body ages. The mechanisms through which chronic psychosocial stress influences distinct biological aging pathways to alter rates of aging likely involve multiple layers in the physiological-molecular network. In this review, we integrate research using animal, human, and in vitro models to begin to delineate the distinct pathways through which chronic psychosocial stress may impact biological aging, as well as the neuroendocrine mediators (i.e., norepinephrine, epinephrine, and glucocorticoids) that may drive these effects. Findings highlight key connections between stress and aging, namely cellular metabolic activity, DNA damage, telomere length, cellular senescence, and inflammatory response patterns. We conclude with a guiding framework and conceptual model that outlines the most promising biological pathways by which chronic adverse conditions could accelerate aging and point to key missing gaps in knowledge where future research could best answer these pressing questions.
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Affiliation(s)
- Lilian R Polsky
- Cousins Center for Psychoneuroimmunology, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, United States
| | - Kelly E Rentscher
- Cousins Center for Psychoneuroimmunology, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, United States; Department of Psychiatry and Behavioral Medicine, Medical College of Wisconsin, United States.
| | - Judith E Carroll
- Cousins Center for Psychoneuroimmunology, Jane and Terry Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, United States
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Murkey JA, Watkins BX, Vieira D, Boden-Albala B. Disparities in allostatic load, telomere length and chronic stress burden among African American adults: A systematic review. Psychoneuroendocrinology 2022; 140:105730. [PMID: 35338946 DOI: 10.1016/j.psyneuen.2022.105730] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/04/2022] [Accepted: 03/14/2022] [Indexed: 12/27/2022]
Abstract
BACKGROUND The chronic disease burden among African Americans has continued to rise. Although racial disparities in chronic disease risk are well documented, the role of chronic stress in risk disparities among racial and ethnic minorities is not well understood. This systematic review of studies reporting on the relationship between chronic stress, education, and/or income, and biomarkers of chronic stress (allostatic load and telomere length) longitudinally among African Americans, seeks to contribute to this knowledge gap. OBJECTIVE To use the existing literature to both examine the strength of two objective biomarkers--telomere length and allostatic load--as measures of the overactivation of physiological stress processes in African American adults; and determine if existing studies used these two biomarkers to assess the relationship between chronic stress, income and level of educational attainment among African Americans longitudinally. METHODS In order to identify English-language articles published prior to October 11, 2021, a comprehensive search strategy was developed using five databases: PubMed/Medline, EMBASE, Web of Science Plus, Global Health (Ovid), and PsycINFO. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method was used to record progress on the comprehensive search for studies reporting on allostatic load and/or telomere length biomarkers longitudinally within all bodily fluids and chronic stress among African American adults. RESULTS In total, 7 studies met the search criteria; 902 were excluded. Thus, less than 1% of all studies reporting on biomarkers of chronic stress longitudinally included African Americans. Each of the 7 studies described the relationship between telomere length and/or allostatic load among African Americans and chronic stress, education, and/or income. Higher chronic stress levels and experiences of racial discrimination were associated with telomere shortening while lower income and higher chronic stress levels were associated with an increase in allostatic load among African Americans. DISCUSSION Given the limited number of studies reporting on the association between allostatic load, telomere length, and/or the relationship between both in assessing chronic stress severity longitudinally among African American populations, it is impossible to determine whether one biomarker has greater predictive value than the other. However, based on the literature included in this review, higher chronic stress levels and experiences of racial discrimination were associated with shorter telomere length, while lower income and higher chronic stress levels are associated with an increase in allostatic load among African Americans. CONCLUSION These data illustrate a gap in the literature on the relationship between the biomarkers of telomere length and allostatic load combined as a potential measure for chronic stress among African Americans. To our knowledge, none the current literature describes the relationship between telomere length and allostatic load longitudinally among African American adults. As the field strives to develop a "gold standard" for measuring chronic stress, the combination of these biomarkers needs to be the subject of scientific inquiry and thus, fully examined. Future longitudinal studies among African Americans are needed to better understand which biomarker, or combination of biomarkers will provide the most accurate measure of physiological stress processes.
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Affiliation(s)
- Jamie A Murkey
- New York University School of Global Public Health, Department of Epidemiology, 708 Broadway, New York, NY 10003, USA.
| | - Beverly-Xaviera Watkins
- New York University School of Global Public Health, Department of Epidemiology, 708 Broadway, New York, NY 10003, USA
| | - Dorice Vieira
- New York University Langone School of Medicine, Health Sciences Library, 550 First Avenue, New York, NY 10016, USA
| | - Bernadette Boden-Albala
- University of California Irvine Department of Population Health, 653 East Peltason Drive, Irvine, CA 92697, USA
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Kresovich JK, Garval EL, Martinez Lopez AM, Xu Z, Niehoff NM, White AJ, Sandler DP, Taylor JA. Associations of Body Composition and Physical Activity Level With Multiple Measures of Epigenetic Age Acceleration. Am J Epidemiol 2021; 190:984-993. [PMID: 33693587 DOI: 10.1093/aje/kwaa251] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 09/02/2020] [Accepted: 09/08/2020] [Indexed: 12/22/2022] Open
Abstract
Epigenetic clocks use DNA methylation to estimate biological age. Whether body composition and physical activity are associated with these clocks is not well understood. Using blood samples collected at enrollment (2003-2009) from 2,758 women in the US nationwide Sister Study, we calculated 6 epigenetic age acceleration metrics using 4 epigenetic clocks (Hannum, Horvath, PhenoAge, GrimAge). Recreational physical activity was self-reported, and adiposity measures were assessed by trained medical examiners (body mass index (BMI), waist-to-hip ratio (WtH), waist circumference). In cross-sectional analyses, all adiposity measures were associated with epigenetic age acceleration. The strongest association was for BMI and PhenoAge, a measure of biological age that correlates with chronic disease (BMI of ≥35.0 vs. 18.5-24.9, β = 3.15 years, 95% confidence interval (CI): 2.41, 3.90; P for trend < 0.001). In a mutual-adjustment model, both were associated with PhenoAge age acceleration (BMI of ≥35.0 vs. 18.5-24.9, β = 2.69 years, 95% CI: 1.90, 3.48; P for trend < 0.001; quartile 4 vs.1 WtH, β = 1.00 years, 95% CI: 0.34, 1.65; P for trend < 0.008). After adjustment, physical activity was associated only with GrimAge (quartile 4 vs. 1, β = -0.42 years, 95% CI: -0.70, -0.14; P for trend = 0.001). Physical activity attenuated the waist circumference associations with PhenoAge and GrimAge. Excess adiposity was associated with epigenetic age acceleration; physical activity might attenuate associations with waist circumference.
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12
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Gorenjak V, Petrelis AM, Stathopoulou MG, Visvikis-Siest S. Telomere length determinants in childhood. Clin Chem Lab Med 2021; 58:162-177. [PMID: 31465289 DOI: 10.1515/cclm-2019-0235] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 07/30/2019] [Indexed: 01/16/2023]
Abstract
Telomere length (TL) is a dynamic marker that reflects genetic predispositions together with the environmental conditions of an individual. It is closely related to longevity and a number of pathological conditions. Even though the extent of telomere research in children is limited compared to that of adults, there have been a substantial number of studies providing first insights into child telomere biology and determinants. Recent discoveries revealed evidence that TL is, to a great extent, determined already in childhood and that environmental conditions in adulthood have less impact than first believed. Studies have demonstrated that large inter-individual differences in TL are present among newborns and are determined by diverse factors that influence intrauterine development. The first years of child growth are associated with high cellular turnover, which results in fast shortening of telomeres. The rate of telomere loss becomes stable in early adulthood. In this review article we summarise the existing knowledge on telomere dynamics during the first years of childhood, highlighting the conditions that affect newborn TL. We also warn about the knowledge gaps that should be filled to fully understand the regulation of telomeres, in order to implement them as biomarkers for use in diagnostics or treatment.
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Affiliation(s)
| | | | | | - Sophie Visvikis-Siest
- University of Lorraine, Inserm, IGE-PCV, Nancy, France.,Department of Internal Medicine and Geriatrics, CHU Technopôle Nancy-Brabois, Vandoeuvre-lès-Nancy, France
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13
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An Improved Stress-Scale Specifically Designed to Measure Stress of Women with Newly Diagnosed Breast Cancer. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052346. [PMID: 33673627 PMCID: PMC7967728 DOI: 10.3390/ijerph18052346] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/20/2021] [Accepted: 02/23/2021] [Indexed: 01/22/2023]
Abstract
Most breast cancer patients are middle-aged women actively involved in establishing a family, developing a career, or raising children. With the exception of the Newly Diagnosed Breast Cancer Stress Scale (NDBCSS), few stress scales have been designed for women with breast cancer. This study checked the dimensionality of the NDBCSS by confirmatory factor analysis (CFA) and the results showed a poor fit, indicating an urgent need for improvement. Exploratory factor analysis (EFA) using the varimax rotation method was performed to improve the model, the revised NDBCSS (NDBCSS-R), which showed a good Kaiser-Meyer-Olkin value, Bartlett’s test of sphericity, and internal consistency reliability. The NDBCSS-R showed improved indices compared with NDBCSS, including: chi-square fit statistics/degree of freedom (CMIN/DF), goodness-of-fit index (GFI), adjusted goodness of fit index (AGFI), normed fix index (NFI), relative fit index (RFI), incremental fix index (IFI), Tucker–Lewis index (TLI), comparative fix index (CFI), root mean square error of approximation (RMSEA), root mean square residual (RMR), parsimonious goodness-fit-index (PGFI), and parsimonious normed fit index (PNFI). In conclusion, the improved NDBCSS-R can provide health professionals with an early understanding of the stress levels of women with breast cancer so that they can provide immediate medical intervention to prevent vicious cycles in a timely manner.
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Prenatal developmental origins of behavior and mental health: The influence of maternal stress in pregnancy. Neurosci Biobehav Rev 2020; 117:26-64. [DOI: 10.1016/j.neubiorev.2017.07.003] [Citation(s) in RCA: 438] [Impact Index Per Article: 109.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 04/09/2017] [Accepted: 07/11/2017] [Indexed: 01/17/2023]
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15
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Oaks BM, Adu-Afarwuah S, Kumordzie S, Laudenslager ML, Smith DL, Lin J, Young RR, Arnold CD, Bentil H, Okronipa H, Ocansey M, Dewey KG. Impact of a nutritional supplement during gestation and early childhood on child salivary cortisol, hair cortisol, and telomere length at 4-6 years of age: a follow-up of a randomized controlled trial. Stress 2020; 23:597-606. [PMID: 32063089 PMCID: PMC7497284 DOI: 10.1080/10253890.2020.1728528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Dysregulation of the stress response can occur early in life and may be affected by nutrition. Our objective was to evaluate the long-term effect of nutritional supplementation during gestation and early childhood on child cortisol and buccal telomere length (a marker of cellular aging) at 4-6 years of age. We conducted a follow-up study of children born to women who participated in a nutritional supplementation trial in Ghana. In one group, a lipid-based nutrient supplement (LNS) was provided to women during gestation and the first 6 months postpartum and to their infants from age 6 to 18 months. The control groups received either iron and folic acid (IFA) during gestation or multiple micronutrients during gestation and the first 6 months postpartum, with no infant supplementation. At age 4-6 years, we measured hair cortisol, buccal telomere length, and salivary cortisol before and after a stressor. Salivary cortisol was available for 364 children across all three trial arms and hair cortisol and telomere length were available for a subset of children (n = 275 and 278, respectively) from the LNS and IFA groups. Telomere length, salivary cortisol, and hair cortisol did not differ by supplementation group. Overall, these findings suggest that nutritional supplementation given during gestation and early childhood does not have an effect on child stress response or chronic stress in children at 4-6 years. Trial registration: ClinicalTrials.gov Identifier NCT00970866.Lay SummaryThis study addressed a research gap about whether improved nutrition during pregnancy and early childhood impacts telomere length and cortisol in preschool children. There was no difference in child telomere length or cortisol between two trial arms of a nutritional supplementation trial that began during pregnancy. The research outcomes indicate lipid-based nutrient supplements, a relatively new form of supplementation, do not have an effect on markers of stress or cellular aging measured in later childhood.
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Affiliation(s)
- Brietta M Oaks
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston, RI, USA
| | - Seth Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Legon, Ghana
| | - Sika Kumordzie
- Department of Nutrition, University of California, Davis, CA, USA
| | - Mark L Laudenslager
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Dana L Smith
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
| | - Jue Lin
- Department of Biochemistry and Biophysics, University of California, San Francisco, CA, USA
| | - Rebecca R Young
- Department of Nutrition, University of California, Davis, CA, USA
| | - Charles D Arnold
- Department of Nutrition, University of California, Davis, CA, USA
| | - Helena Bentil
- Department of Nutrition and Food Sciences, University of Rhode Island, Kingston, RI, USA
| | - Harriet Okronipa
- Department of Nutrition, University of California, Davis, CA, USA
| | - Maku Ocansey
- Department of Nutrition, University of California, Davis, CA, USA
| | - Kathryn G Dewey
- Department of Nutrition, University of California, Davis, CA, USA
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Zannas AS. Epigenetics as a key link between psychosocial stress and aging: concepts, evidence, mechanisms
. DIALOGUES IN CLINICAL NEUROSCIENCE 2020; 21:389-396. [PMID: 31949406 PMCID: PMC6952744 DOI: 10.31887/dcns.2019.21.4/azannas] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Psychosocial stress—especially when chronic, excessive, or occurring early in
life—has been associated with accelerated aging and increased disease risk. With rapid
aging of the world population, the need to elucidate the underlying mechanisms is
pressing, now more so than ever. Among molecular mechanisms linking stress and aging,
the present article reviews evidence on the role of epigenetics, biochemical processes
that can be set into motion by stressors and in turn influence genomic function and
complex phenotypes, including aging-related outcomes. The article further provides a
conceptual mechanistic framework on how stress may drive epigenetic changes at
susceptible genomic sites, thereby exerting systems-level effects on the aging epigenome
while also regulating the expression of molecules implicated in aging-related processes.
This emerging evidence, together with work examining related biological processes,
begins to shed light on the epigenetic and, more broadly, molecular underpinnings of the
long-hypothesized connection between stress and aging.
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Affiliation(s)
- Anthony S Zannas
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, US; Department of Genetics, University of North Carolina, Chapel Hill, North Carolina, US; Department of Psychiatry and Behavioral Sciences, Duke University Medical Center, Durham, North Carolina, US; Institute for Trauma Recovery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, US; Neuroscience Curriculum, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, US
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17
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Wynchank D, Bijlenga D, Penninx BW, Lamers F, Beekman AT, Kooij JJS, Verhoeven JE. Delayed sleep-onset and biological age: late sleep-onset is associated with shorter telomere length. Sleep 2020; 42:5528107. [PMID: 31270544 DOI: 10.1093/sleep/zsz139] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/08/2019] [Indexed: 12/19/2022] Open
Abstract
STUDY OBJECTIVES We evaluated the relationship between leukocyte telomere length (LTL) and sleep duration, insomnia symptoms, and circadian rhythm, to test whether sleep and chronobiological dysregulations are associated with cellular aging. METHODS Data from the Netherlands Study of Depression and Anxiety (N = 2,936) were used at two waves 6 years apart, to measure LTL. Telomeres shorten during the life span and are important biomarkers for cellular aging. LTL was assessed by qualitative polymerase chain reaction and converted into base pair number. Sleep parameters were: sleep duration and insomnia symptoms from the Insomnia Rating Scale. Circadian rhythm variables were: indication of Delayed Sleep Phase Syndrome (DSPS), mid-sleep corrected for sleep debt on free days (MSFsc), sleep-onset time, and self-reported chronotype, from the Munich Chronotype Questionnaire. Generalized estimating equations analyzed the associations between LTL, sleep, and chronobiological factors, adjusted for baseline age, sex, North European ancestry, and additionally for current smoking, depression severity, obesity, and childhood trauma. RESULTS Indicators of delayed circadian rhythm showed a strong and consistent effect on LTL, after adjustment for sociodemographic and health indicators. Late MSFsc (B = -49.9, p = .004), late sleep-onset time (B = -32.4, p = .001), indication of DSPS (B = -73.8, p = .036), and moderately late chronotype in adulthood (B = -71.6, p = .003) were associated with significantly shorter LTL across both waves; whereas sleep duration and insomnia symptoms were not. Extremely early chronotype showed significantly less LTL shortening than intermediate chronotype (B = 161.40, p = .037). No predictors showed accelerated LTL attrition over 6 years. CONCLUSIONS Individuals with delayed circadian rhythm have significantly shorter LTL, but not faster LTL attrition rates.
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Affiliation(s)
- Dora Wynchank
- PsyQ Expertise Center Adult ADHD, The Hague, The Netherlands
| | - Denise Bijlenga
- PsyQ Expertise Center Adult ADHD, The Hague, The Netherlands
| | - Brenda W Penninx
- Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - Femke Lamers
- Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - Aartjan T Beekman
- Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - J J Sandra Kooij
- PsyQ Expertise Center Adult ADHD, The Hague, The Netherlands.,Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - Josine E Verhoeven
- Department of Psychiatry, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands
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18
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de Baca TC, Prather AA, Lin J, Sternfeld B, Adler N, Epel ES, Puterman E. Chronic psychosocial and financial burden accelerates 5-year telomere shortening: findings from the Coronary Artery Risk Development in Young Adults Study. Mol Psychiatry 2020; 25:1141-1153. [PMID: 31455861 PMCID: PMC7044034 DOI: 10.1038/s41380-019-0482-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/09/2019] [Accepted: 05/21/2019] [Indexed: 01/24/2023]
Abstract
Leukocyte telomere length, a marker of immune system function, is sensitive to exposures such as psychosocial stressors and health-maintaining behaviors. Past research has determined that stress experienced in adulthood is associated with shorter telomere length, but is limited to mostly cross-sectional reports. We test whether repeated reports of chronic psychosocial and financial burden is associated with telomere length change over a 5-year period (years 15 and 20) from 969 participants in the Coronary Artery Risk Development in Young Adults (CARDIA) Study, a longitudinal, population-based cohort, ages 18-30 at time of recruitment in 1985. We further examine whether multisystem resiliency, comprised of social connections, health-maintaining behaviors, and psychological resources, mitigates the effects of repeated burden on telomere attrition over 5 years. Our results indicate that adults with high chronic burden do not show decreased telomere length over the 5-year period. However, these effects do vary by level of resiliency, as regression results revealed a significant interaction between chronic burden and multisystem resiliency. For individuals with high repeated chronic burden and low multisystem resiliency (1 SD below the mean), there was a significant 5-year shortening in telomere length, whereas no significant relationships between chronic burden and attrition were evident for those at moderate and higher levels of resiliency. These effects apply similarly across the three components of resiliency. Results imply that interventions should focus on establishing strong social connections, psychological resources, and health-maintaining behaviors when attempting to ameliorate stress-related decline in telomere length among at-risk individuals.
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Affiliation(s)
- Tomás Cabeza de Baca
- Division of Cardiology, 400 Parnassus Ave., AC-16, Box 0369, San Francisco, CA 94143, USA, University of California, San Francisco
| | - Aric A. Prather
- Department of Psychiatry, University of California San Francisco
| | - Jue Lin
- Biochemistry and Biophysics, University of California, San Francisco
| | | | - Nancy Adler
- Department of Psychiatry, University of California San Francisco
| | - Elissa S. Epel
- Department of Psychiatry, University of California San Francisco
| | - Eli Puterman
- School of Kinesiology, University of British Columbia, Vancouver, War Memorial Gymnasium, Room 210, 6081 University Boulevard, Vancouver, BC V6T 1Z1
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Rentscher KE, Carroll JE, Mitchell C. Psychosocial Stressors and Telomere Length: A Current Review of the Science. Annu Rev Public Health 2020; 41:223-245. [DOI: 10.1146/annurev-publhealth-040119-094239] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A growing literature suggests that exposure to adverse social conditions may accelerate biological aging, offering one mechanism through which adversity may increase risk for age-related disease. As one of the most extensively studied biological markers of aging, telomere length (TL) provides a valuable tool to understand potential influences of social adversity on the aging process. Indeed, a sizeable literature now links a wide range of stressors to TL across the life span. The aim of this article is to review and evaluate this extant literature with a focus on studies that investigate psychosocial stress exposures and experiences in early life and adulthood. We conclude by outlining potential biological and behavioral mechanisms through which psychosocial stress may influence TL, and we discuss directions for future research in this area.
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Affiliation(s)
- Kelly E. Rentscher
- Cousins Center for Psychoneuroimmunology, Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, California 90095, USA;,
| | - Judith E. Carroll
- Cousins Center for Psychoneuroimmunology, Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, California 90095, USA;,
| | - Colter Mitchell
- Institute for Social Research, University of Michigan, Ann Arbor, Michigan 48106, USA
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20
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Electrochemical immunoassay for the detection of stress biomarkers. Heliyon 2020; 6:e03558. [PMID: 32211542 PMCID: PMC7082534 DOI: 10.1016/j.heliyon.2020.e03558] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 01/09/2020] [Accepted: 03/04/2020] [Indexed: 01/11/2023] Open
Abstract
A rapid electrochemical immunoassay method was developed to detect and measure stress biomarkers (cortisol and cortisone) in two biological samples (Zebrafish whole-body and artificial saliva). This methodology utilizes an immunoassay approach taking advantage of the lock and key mechanism that is related to the antibody-antigen interaction depending on the reliable immobilization of the antibody labelled with ferrocene tags (Ab-Fc) on a modified tin-doped indium oxide (ITO) electrode using electrochemical instrumentation to build a POC platform. The limit of detection (LOD) obtained for this biosensor was 1.03 pg ml−1 for cortisol and 0.68 pg ml−1 for cortisone, respectively. The correlation coefficient was 0.9852 and 0.9841 for cortisol and cortisone, respectively with a linear concentration from (0-50 ng ml−1) which covers the standard levels of stress hormones in both selected biological samples. The incubation time was investigated and 30 min was found to be the optimum incubation time. This time would be acceptable for the POC system as total process time can be determined within 35 min.
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21
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Kresovich JK, Parks CG, Sandler DP, Taylor JA. Reproductive history and blood cell telomere length. Aging (Albany NY) 2019; 10:2383-2393. [PMID: 30243019 PMCID: PMC6188490 DOI: 10.18632/aging.101558] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 09/10/2018] [Indexed: 11/25/2022]
Abstract
Telomeres are repetitive nucleotide sequences that protect against chromosomal shortening. They are replenished by telomerase, an enzyme that may be activated by estrogen. Women have longer telomeres than men; this difference might be due to estrogen exposure. We hypothesized that reproductive histories reflecting greater estrogen exposure will be associated with longer blood cell telomeres. Among women in the Sister Study (n= 1,048), we examined telomere length in relation to self-reported data on reproductive history. The difference between age at menarche and last menstrual period was used to approximate the reproductive period. Relative telomere length (rTL) was measured using qPCR. After adjustment, rTL decreased with longer reproductive period (β= -0.019, 95% CI: -0.04, -0.00, p= 0.03). Premenopausal women had shorter rTL than postmenopausal women (β= -0.051, 95% CI: -0.12, 0.01, p= 0.13). Longer breastfeeding duration was associated with longer rTL (β= 0.027, 95% CI: 0.01, 0.05, p=0.01); increasing parity was associated with shorter rTL (β = -0.016, 95% CI: -0.03, 0.00, p=0.07). Duration of exogenous hormone use was not associated with rTL. Reproductive histories reflecting greater endogenous estrogen exposure were associated with shorter rTL. Our findings suggest that longer telomeres in women are unlikely to be explained by greater estrogen exposure.
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Affiliation(s)
- Jacob K Kresovich
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA
| | - Christine G Parks
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA
| | - Dale P Sandler
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA
| | - Jack A Taylor
- Epidemiology Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA.,Epigenetic and Stem Cell Biology Laboratory, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC 27709, USA
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22
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Humphreys KL, King LS, Sacchet MD, Camacho MC, Colich NL, Ordaz SJ, Ho TC, Gotlib IH. Evidence for a sensitive period in the effects of early life stress on hippocampal volume. Dev Sci 2019; 22:e12775. [PMID: 30471167 PMCID: PMC6469988 DOI: 10.1111/desc.12775] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 10/28/2018] [Accepted: 11/14/2018] [Indexed: 12/18/2022]
Abstract
Exposure to stress has been causally linked to changes in hippocampal volume (HV). Given that the hippocampus undergoes rapid changes in the first years of life, stressful experiences during this period may be particularly important in understanding individual differences in the development of the hippocampus. One hundred seventy-eight early adolescents (ages 9-13 years; 43% male) were interviewed regarding exposure to and age of onset of experiences of stress; the severity of each stressful event was rated by an objective panel. All participants underwent structural magnetic resonance imaging, from which HVs were automatically segmented. Without considering the age of onset for stressful experiences, there was a small but statistically significant negative association of stress severity with bilateral HV. When considering the age of onset, there was a moderate and significant negative association between stress severity during early childhood (through 5 years of age) and HV; there was no association between stress severity during later childhood (age 6 years and older) and HV. We provide evidence of a sensitive period through 5 years of age for the effects of life stress on HV in adolescence. It will be important in future research to elucidate how reduced HV stemming from early life stress may contribute to stress-related health outcomes.
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23
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Jiang Y, Da W, Qiao S, Zhang Q, Li X, Ivey G, Zilioli S. Basal cortisol, cortisol reactivity, and telomere length: A systematic review and meta-analysis. Psychoneuroendocrinology 2019; 103:163-172. [PMID: 30695740 PMCID: PMC6450740 DOI: 10.1016/j.psyneuen.2019.01.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 01/11/2019] [Accepted: 01/21/2019] [Indexed: 01/23/2023]
Abstract
The objective of the present study is to synthesize the existing empirical literature and perform a meta-analysis of published data on the relationship between cortisol and telomere length. We systematically searched studies that examined the relationship between cortisol and telomere length in humans on electronic databases and screened reference sections of included articles. Fourteen studies were included in the meta-analysis, with effect sizes being extracted for two cortisol measures: basal cortisol levels and cortisol reactivity to acute psychological stress. Results from random effects models showed that basal cortisol levels (13 effect sizes from 12 cross-sectional studies, N = 3675 participants) were not significantly correlated with telomere length (r =-0.05, 95% CI [-0.11, 0.02]). Further, results stratified by the specimen type for cortisol measurement (i.e., saliva, urine, blood) showed that none of the three basal cortisol level measures were correlated with telomere length. However, we found a statistically significant correlation between salivary cortisol reactivity to acute psychosocial stress (6 cross-sectional studies, N = 958 participants) and telomere length (r = -0.13, 95% CI [-0.23, -0.03]). Subgroup analyses revealed that correlations between salivary cortisol reactivity and telomere length were more evident in studies conducted among children (vs. adults) and in studies that included female participants only (vs. both genders). However, the small number of available studies limits the conclusions derived from subgroup analyses, and more studies are needed before moderator effects can be properly established. Overall, findings of this study support the existence of a relationship between cortisol reactivity and telomere shortening.
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Affiliation(s)
- Yanping Jiang
- Department of Health Promotion, Education, & Behavior, University of South Carolina, Columbia, SC United States.
| | - Wendi Da
- Department of Health Promotion, Education, & Behavior, University of South Carolina, Columbia, SC
| | - Shan Qiao
- Department of Health Promotion, Education, & Behavior, University of South Carolina, Columbia, SC
| | - Quan Zhang
- Department of Health Promotion, Education, & Behavior, University of South Carolina, Columbia, SC
| | - Xiaoming Li
- Department of Health Promotion, Education, & Behavior, University of South Carolina, Columbia, SC
| | - Grace Ivey
- Arnold School of Public Health, University of South Carolina, Columbia, SC
| | - Samuele Zilioli
- Department of Psychology, Wayne State University, Detroit, MI United States; Department of Family Medicine and Public Health Sciences, Wayne State University, Detroit, MI United States.
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Higher Number of Night Shifts Associates with Good Perception of Work Capacity and Optimal Lung Function but Correlates with Increased Oxidative Damage and Telomere Attrition. BIOMED RESEARCH INTERNATIONAL 2019; 2019:8327629. [PMID: 31111068 PMCID: PMC6487156 DOI: 10.1155/2019/8327629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 02/16/2019] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
Abstract
Sleep deprivation and the consequent circadian clock disruption has become an emergent health question being associated with premature aging and earlier chronic diseases onset. Night-shift work leads to circadian clock misalignment, which is linked to several age-related diseases. However, mechanisms of this association are not well understood. Aim of this study is to explore in night-shift workers early indicators of oxidative stress response and biological aging [oxidized/methylated DNA bases and leukocytes telomere length (LTL)] and late indicators of functional aging [lung function measurements (FEV1 and FVC)] in relation to personal evaluation of work capacity, measured by work ability index (WAI). One hundred fifty-five hospital workers were studied within the framework of a cross-sectional study. We collected physiological, pathological, and occupational history including pack-years, alcohol consumption, physical activity, and night shifts, together with blood and urine samples. Relationships were appraised by univariate and multivariate ordered-logistic regression models. We found that workers with good and excellent WAI present higher FEV1 (p< 0.01) and number of night-work shifts (p<0.05), but they reveal higher urinary levels of 8-oxoGua (p<0.01) and shorter LTL (p<0.05). We confirmed that higher work ability was prevalent among chronological younger workers (p<0.05), who have also a significant reduced number of diseases, particularly chronic (p<0.01) and musculoskeletal diseases (p<0.01). The new findings which stem from our work are that subjects with the highest work ability perception may have more demanding and burdensome tasks; they in fact present the highest number of night-shift work and produce unbalanced oxidative stress response that might induce premature aging.
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25
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Boccardi M, Boccardi V. Psychological Wellbeing and Healthy Aging: Focus on Telomeres. Geriatrics (Basel) 2019; 4:geriatrics4010025. [PMID: 31023993 PMCID: PMC6473912 DOI: 10.3390/geriatrics4010025] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/09/2019] [Accepted: 02/18/2019] [Indexed: 12/15/2022] Open
Abstract
Stress and depression are known to modulate the aging process, and might also affect telomere biology. In fact, exposure to some biochemical pathways involved in stress-related depression may contribute to an ‘‘accelerated aging” phenotype, as well as the incidence of age-related diseases, including metabolic disorders and dementia. Basic studies support the notion that the telomere and telomerase system plays a pivotal role in the aging process and disease promotion. Interestingly, short and dysfunctional telomeres are associated with reduced lifespan, as shown in animal models. In this context, telomeres are very sensitive to stress, mindset, and lifestyle, and their rescue may be sufficient to restore cell and organism viability. This mini-review discusses conceptual models of healthy and active aging and their relationship with telomere biology and mental health.
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Affiliation(s)
- Mariangela Boccardi
- Department of Psychiatry, University of Campania Luigi Vanvitelli, 80138 Naples, Italy.
| | - Virginia Boccardi
- Section of Gerontology and Geriatrics, Santa Maria della Misericordia Hospital, 60132 Perugia, Italy.
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26
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Tea consumption and oxidative stress: a cross-sectional analysis of 889 premenopausal women from the Sister Study. Br J Nutr 2019; 121:582-590. [PMID: 30567620 DOI: 10.1017/s0007114518003732] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In experimental and clinical studies, green or black tea consumption has been shown to reduce oxidative stress. However, these studies involved high levels of tea consumption and may not reflect patterns in the general population. Here, we examined the association between black or green tea consumption and oxidative stress in a cross-sectional study of 889 premenopausal US women aged 35-54 years. Tea consumption was measured using the Block-98 FFQ. Urinary 8-iso-PGF2α (F2-IsoP) and 2,3-dinor-5,6-dihydro-15-F2t-isoprostane (15-F2t-IsoP-M) were used as biomarkers of oxidative stress. These compounds were measured by MS and normalised to creatinine. Linear regression was used to calculate the geometric mean differences (GMD) and 95% CI for log-transformed urinary F2-IsoP or 15-F2t-IsoP-M in relation to black or green tea consumption. We further examined whether adjusting for caffeine impacted associations between tea and oxidative stress. Geometric means of urinary F2-IsoP and 15-F2t-IsoP-M were 1·44 (95% CI 1·39, 1·49) and 0·71 (95% CI 0·69, 0·73) ng/mg creatinine, respectively. Overall, green tea consumption was not associated with urinary F2-IsoP or 15-F2t-IsoP-M. High-level black tea consumption (≥5 cups/week compared with 0) was associated with higher 15-F2t-IsoP-M concentrations (adjusted GMD=0·10, 95 % CI 0·02-0.19) but not F2-IsoP. Adjusting for caffeine nullified the association between black tea and 15-F2t-IsoP-M. Our findings do not support the hypothesis that dietary tea consumption is inversely associated with oxidative stress.
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Kim N, Sung JY, Park JY, Kong ID, Hughes TL, Kim DK. Association between internet gaming addiction and leukocyte telomere length in Korean male adolescents. Soc Sci Med 2019; 222:84-90. [PMID: 30616218 DOI: 10.1016/j.socscimed.2018.12.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 11/25/2022]
Abstract
Internet gaming addiction (IGA) has been associated with many negative health outcomes, especially for youth. In particular, the potential association between IGA and leukocyte telomere length (LTL) has yet to be examined. In this study we compared LTL in Korean male adolescents with and without IGA and examined the association between LTL and autonomic functions. Specifically, plasma catecholamine, serum cortisol, and psychological stress levels were measured as autonomic functions. Data were collected using participant blood samples analyzed for LTL, catecholamine, and cortisol levels and a set of questionnaires to assess IGA and psychological stress levels of the participants. The LTL measurements were made using a qPCR-based technique, and the relative LTL was calculated as the telomere/single copy (T/S) ratio. T/S ratio was significantly shorter in the IGA group than in the non-IGA group (150.43 ± 6.20 and 187.23 ± 6.42, respectively; p < .001) after adjusting for age. In a univariate regression analysis, age, daily Internet gaming time, IGA score, and catecholamine level (epinephrine and norepinephrine) were significantly associated with T/S ratio. However, duration of Internet gaming exposure, dopamine, cortisol, and psychological stress levels were not found to be associated with T/S ratio. In the final multiple linear regression model, age, daily Internet gaming time, and epinephrine level showed statistically significant relationships with T/S ratio. Our results indicate that in addition to age, involvement in excessive Internet gaming may induce LTL shortening in male adolescents, which may be partially attributable to changes in autonomic function such as catecholamine level. These findings further understanding of the health effects of IGA and highlight the need for screening and intervention strategies for male adolescents with IGA.
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Affiliation(s)
- NaHyun Kim
- College of Nursing, Keimyung University, Daegu, Republic of Korea.
| | - Jin Young Sung
- Department of Medical Genetics, School of Medicine, Keimyung University, Daegu, Republic of Korea.
| | - Joo Yeon Park
- College of Nursing, Keimyung University, Daegu, Republic of Korea.
| | - In Deok Kong
- Department of Physiology, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea.
| | - Tonda L Hughes
- School of Nursing and Department of Psychiatry, Columbia University, New York City, USA.
| | - Dae-Kwang Kim
- Department of Medical Genetics, School of Medicine, Keimyung University, Daegu, Republic of Korea.
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Yeager R, Riggs DW, DeJarnett N, Tollerud DJ, Wilson J, Conklin DJ, O'Toole TE, McCracken J, Lorkiewicz P, Xie Z, Zafar N, Krishnasamy SS, Srivastava S, Finch J, Keith RJ, DeFilippis A, Rai SN, Liu G, Bhatnagar A. Association Between Residential Greenness and Cardiovascular Disease Risk. J Am Heart Assoc 2018; 7:e009117. [PMID: 30561265 PMCID: PMC6405613 DOI: 10.1161/jaha.118.009117] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Exposure to green vegetation has been linked to positive health, but the pathophysiological processes affected by exposure to vegetation remain unclear. To study the relationship between greenness and cardiovascular disease, we examined the association between residential greenness and biomarkers of cardiovascular injury and disease risk in susceptible individuals. Methods and Results In this cross-sectional study of 408 individuals recruited from a preventive cardiology clinic, we measured biomarkers of cardiovascular injury and risk in participant blood and urine. We estimated greenness from satellite-derived normalized difference vegetation index ( NDVI ) in zones with radii of 250 m and 1 km surrounding the participants' residences. We used generalized estimating equations to examine associations between greenness and cardiovascular disease biomarkers. We adjusted for residential clustering, demographic, clinical, and environmental variables. In fully adjusted models, contemporaneous NDVI within 250 m of participant residence was inversely associated with urinary levels of epinephrine (-6.9%; 95% confidence interval, -11.5, -2.0/0.1 NDVI ) and F2-isoprostane (-9.0%; 95% confidence interval, -15.1, -2.5/0.1 NDVI ). We found stronger associations between NDVI and urinary epinephrine in women, those not on β-blockers, and those who had not previously experienced a myocardial infarction. Of the 15 subtypes of circulating angiogenic cells examined, 11 were inversely associated (8.0-15.6% decrease/0.1 NDVI ), whereas 2 were positively associated (37.6-45.8% increase/0.1 NDVI ) with contemporaneous NDVI . Conclusions Independent of age, sex, race, smoking status, neighborhood deprivation, statin use, and roadway exposure, residential greenness is associated with lower levels of sympathetic activation, reduced oxidative stress, and higher angiogenic capacity.
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Affiliation(s)
- Ray Yeager
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | - Daniel W. Riggs
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY,Department of Bioinformatics and BiostatisticsUniversity of LouisvilleLouisvilleKY
| | - Natasha DeJarnett
- Center for Public Health PolicyAmerican Public Health AssociationWashington D.C.
| | - David J. Tollerud
- Department of Environmental and Occupational Health SciencesUniversity of LouisvilleLouisvilleKY
| | - Jeffrey Wilson
- Department of GeographyIndiana University ‐ Purdue University IndianapolisIndianapolisIN
| | - Daniel J. Conklin
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | - Timothy E. O'Toole
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | | | - Pawel Lorkiewicz
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | - Zhengzhi Xie
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | - Nagma Zafar
- Department of PediatricsUniversity of LouisvilleLouisvilleKY
| | - Sathya S. Krishnasamy
- Division of Endocrinology, Metabolism & DiabetesUniversity of LouisvilleLouisvilleKY
| | - Sanjay Srivastava
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | - Jordan Finch
- Envirome InstituteUniversity of LouisvilleLouisvilleKY
| | - Rachel J. Keith
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
| | - Andrew DeFilippis
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Division of Cardiovascular MedicineUniversity of LouisvilleLouisvilleKY
| | - Shesh N. Rai
- Department of Bioinformatics and BiostatisticsUniversity of LouisvilleLouisvilleKY,Biostatistics and Bioinformatics Shared FacilityJames Graham Brown Cancer CenterUniversity of LouisvilleLouisvilleKY
| | - Gilbert Liu
- Department of PediatricsUniversity of LouisvilleLouisvilleKY
| | - Aruni Bhatnagar
- Envirome InstituteUniversity of LouisvilleLouisvilleKY,Superfund Research CenterUniversity of LouisvilleLouisvilleKY
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29
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Willis M, Reid SN, Calvo E, Staudinger UM, Factor-Litvak P. A scoping systematic review of social stressors and various measures of telomere length across the life course. Ageing Res Rev 2018; 47:89-104. [PMID: 30048807 PMCID: PMC6195444 DOI: 10.1016/j.arr.2018.07.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/10/2018] [Accepted: 07/18/2018] [Indexed: 12/20/2022]
Abstract
Numerous studies examine the relationship between social stressors and telomere length (TL). Beyond considering methods and major findings, this scoping systematic review takes a novel approach as it groups studies according to the types of social stressor considered and by age groups. Following PRISMA guidelines, we searched PubMed, Web of Science, Embase, and Scopus. We included all English-language human subject research articles that modeled any measure of TL as a dependent variable and exposure to a social stressor as an independent variable. For the sample of 105 articles, we summarized methods and findings by type of social stressor (socioeconomic stressors, stressful life events, work-related stressors, and neighborhood stressors) and by age of the study population (infants/children, middle-aged adults, older adults, and mixed samples of middle-aged and older adults). We found more variation in TL measurement methodology in studies of infants/children and older adults than in studies focusing on middle-aged adults. The most consistent finding was a relationship between early-life stressors and shorter TL. Work and neighborhood stressors, and older populations, are currently understudied. Across all stressors, limited evidence suggests that the stress-TL relationship may be moderated by characteristics such as age, sex, and race/ethnicity. We conclude with specific suggestions for future research.
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Affiliation(s)
- Margaret Willis
- Department of Epidemiology, Mailman School of Public Health, Columbia University, United States.
| | - Shaina N Reid
- Department of Epidemiology, Mailman School of Public Health, Columbia University, United States
| | - Esteban Calvo
- Department of Epidemiology, Mailman School of Public Health, Columbia University, United States; Robert N. Butler Columbia Aging Center, Columbia University, United States; Society and Health Research Center, Facultad de Humanidades, Universidad Mayor, Chile; Laboratory on Aging and Social Epidemiology, Universidad Mayor, Chile
| | - Ursula M Staudinger
- Robert N. Butler Columbia Aging Center, Columbia University, United States; Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University, United States
| | - Pam Factor-Litvak
- Department of Epidemiology, Mailman School of Public Health, Columbia University, United States
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30
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Jiménez KM, Pereira-Morales AJ, Adan A, Forero DA. Telomere length and childhood trauma in Colombians with depressive symptoms. ACTA ACUST UNITED AC 2018; 41:194-198. [PMID: 30328966 PMCID: PMC6794130 DOI: 10.1590/1516-4446-2018-0027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 04/02/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Childhood trauma and telomere length (TL) are important risk factors for major depressive disorder. We examined whether there was an association between childhood trauma and TL in a sample of Colombians who were assessed for depressive symptoms. METHODS We applied the Center for Epidemiologic Studies Depression scale, the Patient Health Questionnaire-9, the Hospital Anxiety and Depression scale and the Childhood Trauma Questionnaire to 92 Colombian subjects (mean age = 21). TL was measured with quantitative PCR. Spearman's correlation coefficient (rs) was used to analyze the relationship between childhood trauma scores and TL. RESULTS We found a significant correlation between TL and sexual abuse scores (rs = 0.428, p = 0.002) in individuals with higher depressive symptom scores. CONCLUSION This is the first report of a significant association between TL and sexual abuse in a Latin American sample and provides additional evidence about the role of childhood trauma and TL in neuropsychiatric disorders.
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Affiliation(s)
- Karen M Jiménez
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Angela J Pereira-Morales
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Ana Adan
- Department of Clinical Psychology and Psychobiology, School of Psychology, University of Barcelona, Barcelona, Spain.,Institute of Neurosciences, University of Barcelona, Barcelona, Spain
| | - Diego A Forero
- Laboratory of Neuropsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
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31
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Tennyson RL, Gettler LT, Kuzawa CW, Hayes MG, Agustin SS, Eisenberg DTA. Lifetime socioeconomic status and early life microbial environments predict adult blood telomere length in the Philippines. Am J Hum Biol 2018; 30:e23145. [PMID: 30129279 PMCID: PMC6192840 DOI: 10.1002/ajhb.23145] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 05/11/2018] [Accepted: 05/22/2018] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVES Psychosocial stress is postulated to hasten senescence in part by accelerating the shortening of telomere length (TL). One pathway through which this may happen is via increasing inflammation and innate immune system activation-a pathway which recent studies suggest acts more strongly for those who grew up in low microbial environments. Thus, we hypothesized that: (1) Psychosocial stress will be inversely associated with TL, (2) early life microbial environments will predict TL, and (3) microbial environments will moderate the association between psychosocial stress and TL. METHODS We utilized data from the Cebu Longitudinal Health and Nutrition Survey based in the Philippines (N = 1410). We determined early life microbial environments by season of birth and exposure to animal feces. Psychosocial stress measures included perceived stress in adulthood, lifetime socioeconomic status (SES), and parental instability in childhood. TL was measured in blood from young adults by qPCR. RESULTS Contrary to predictions, we found that higher SES was associated with shorter TL and no association of TL with the other stress variables. Individuals born in the higher microbial exposure season had shorter TL, but early life microbial environments did not moderate the association between psychosocial stress and TL. CONCLUSIONS The unexpected inverse association between SES and TL suggests that higher SES, while indexing lower psychosocial stress, may impact TL more strongly through nonstress factors in the Philippines, such as unhealthy behavior. The inverse association between microbial environments and TL is consistent with other evidence connecting early life infections to decreased life expectancies.
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Affiliation(s)
- Robert L Tennyson
- Department of Anthropology, University of Washington
- Center for Studies in Demography and Ecology, University of Washington
| | - Lee T Gettler
- Department of Anthropology, University of Notre Dame
| | - Christopher W Kuzawa
- Cells 2 Society: the Center for Social Disparities and Health, Institute for Policy Research, Northwestern University
- Department of Anthropology, Northwestern University
| | - M. Geoffrey Hayes
- Department of Anthropology, Northwestern University
- Division of Endocrinology, Metabolism and Molecular Medicine, Department of Medicine, Northwestern University Feinberg School of Medicine
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
| | - Sonny S Agustin
- USC-Office of Population Studies Foundation, University of San Carlos, Cebu City, Philippines
| | - Dan TA Eisenberg
- Department of Anthropology, University of Washington
- Center for Studies in Demography and Ecology, University of Washington
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Pepper GV, Bateson M, Nettle D. Telomeres as integrative markers of exposure to stress and adversity: a systematic review and meta-analysis. ROYAL SOCIETY OPEN SCIENCE 2018; 5:180744. [PMID: 30225068 PMCID: PMC6124068 DOI: 10.1098/rsos.180744] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 07/11/2018] [Indexed: 05/19/2023]
Abstract
Telomeres have been proposed as a biomarker that integrates the impacts of different kinds of stress and adversity into a common currency. There has as yet been no overall comparison of how different classes of exposure associate with telomeres. We present a meta-analysis of the literature relating telomere measures to stresses and adversities in humans. The analysed dataset contained 543 associations from 138 studies involving 402 116 people. Overall, there was a weak association between telomere variables and exposures (greater adversity, shorter telomeres: r = -0.15, 95% CI -0.18 to -0.11). This was not driven by any one type of exposure, because significant associations were found separately for physical diseases, environmental hazards, nutrition, psychiatric illness, smoking, physical activity, psychosocial and socioeconomic exposures. Methodological features of the studies did not explain any substantial proportion of the heterogeneity in association strength. There was, however, evidence consistent with publication bias, with unexpectedly strong negative associations reported by studies with small samples. Restricting analysis to sample sizes greater than 100 attenuated the overall association substantially (r = -0.09, 95% CI -0.13 to -0.05). Most studies were underpowered to detect the typical association magnitude. The literature is dominated by cross-sectional and correlational studies which makes causal interpretation problematic.
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Affiliation(s)
| | | | - Daniel Nettle
- Centre for Behaviour and Evolution and Institute of Neuroscience, Newcastle University, Henry Wellcome Building, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
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33
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Entringer S, de Punder K, Buss C, Wadhwa PD. The fetal programming of telomere biology hypothesis: an update. Philos Trans R Soc Lond B Biol Sci 2018; 373:20170151. [PMID: 29335381 PMCID: PMC5784074 DOI: 10.1098/rstb.2017.0151] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2017] [Indexed: 12/17/2022] Open
Abstract
Research on mechanisms underlying fetal programming of health and disease risk has focused primarily on processes that are specific to cell types, organs or phenotypes of interest. However, the observation that developmental conditions concomitantly influence a diverse set of phenotypes, the majority of which are implicated in age-related disorders, raises the possibility that such developmental conditions may additionally exert effects via a common underlying mechanism that involves cellular/molecular ageing-related processes. In this context, we submit that telomere biology represents a process of particular interest in humans because, firstly, this system represents among the most salient antecedent cellular phenotypes for common age-related disorders; secondly, its initial (newborn) setting appears to be particularly important for its long-term effects; and thirdly, its initial setting appears to be plastic and under developmental regulation. We propose that the effects of suboptimal intrauterine conditions on the initial setting of telomere length and telomerase expression/activity capacity may be mediated by the programming actions of stress-related maternal-placental-fetal oxidative, immune, endocrine and metabolic pathways in a manner that may ultimately accelerate cellular dysfunction, ageing and disease susceptibility over the lifespan. This perspectives paper provides an overview of each of the elements underlying this hypothesis, with an emphasis on recent developments, findings and future directions.This article is part of the theme issue 'Understanding diversity in telomere dynamics'.
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Affiliation(s)
- Sonja Entringer
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, Berlin, Germany
- Department of Pediatrics, University of California, School of Medicine, Irvine, CA, USA
- Development, Health and Disease Research Program, University of California, School of Medicine, Irvine, CA, USA
| | - Karin de Punder
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, Berlin, Germany
| | - Claudia Buss
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Institute of Medical Psychology, Berlin, Germany
- Department of Pediatrics, University of California, School of Medicine, Irvine, CA, USA
- Development, Health and Disease Research Program, University of California, School of Medicine, Irvine, CA, USA
| | - Pathik D Wadhwa
- Department of Psychiatry and Human Behavior, University of California, School of Medicine, Irvine, CA, USA
- Department of Obstetrics and Gynecology, University of California, School of Medicine, Irvine, CA, USA
- Department of Pediatrics, University of California, School of Medicine, Irvine, CA, USA
- Department of Epidemiology, University of California, School of Medicine, Irvine, CA, USA
- Development, Health and Disease Research Program, University of California, School of Medicine, Irvine, CA, USA
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Colonnello V, Petrocchi N, Farinelli M, Ottaviani C. Positive Social Interactions in a Lifespan Perspective with a Focus on Opioidergic and Oxytocinergic Systems: Implications for Neuroprotection. Curr Neuropharmacol 2018; 15:543-561. [PMID: 27538784 PMCID: PMC5543675 DOI: 10.2174/1570159x14666160816120209] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 03/05/2016] [Accepted: 08/14/2016] [Indexed: 12/19/2022] Open
Abstract
In recent years, a growing interest has emerged in the beneficial effects of positive social interactions on health. The present work aims to review animal and human studies linking social interactions and health throughout the lifespan, with a focus on current knowledge of the possible mediating role of opioids and oxytocin. During the prenatal period, a positive social environment contributes to regulating maternal stress response and protecting the fetus from exposure to maternal active glucocorticoids. Throughout development, positive social contact with the caregiver acts as a “hidden regulator” and promotes infant neuroaffective development. Postnatal social neuroprotection interventions involving caregiver–infant physical contact seem to be crucial for rescuing preterm infants at risk for neurodevelopmental disorders. Attachment figures and friendships in adulthood continue to have a protective role for health and brain functioning, counteracting brain aging. In humans, implementation of meditative practices that promote compassionate motivation and prosocial behavior appears beneficial for health in adolescents and adults. Human and animal studies suggest the oxytocinergic and opioidergic systems are important mediators of the effects of social interactions. However, most of the studies focus on a specific phase of life (i.e., adulthood). Future studies should focus on the role of opioids and oxytocin in positive social interactions adopting a lifespan perspective.
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Affiliation(s)
- Valentina Colonnello
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna. Italy
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Manoliu A, Bosch OG, Brakowski J, Brühl AB, Seifritz E. The potential impact of biochemical mediators on telomere attrition in major depressive disorder and implications for future study designs: A narrative review. J Affect Disord 2018; 225:630-646. [PMID: 28889049 DOI: 10.1016/j.jad.2017.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 05/30/2017] [Accepted: 08/10/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Major depressive disorder (MDD) has been proposed to represent a "disease of premature aging", which is associated with certain biomarkers of cellular ageing and numerous other age-related diseases. Over the last decade, telomere length (TL) arose as a surrogate for cellular aging. Recent data suggests that TL might be reduced in patients with MDD, however, results are still inconclusive. This might be explained by the lack of assessment of potential biochemical mediators that are directly associated with telomere shortening and frequently observed in patients with MDD. METHODS A narrative review was performed. The PubMed database was searched for relevant studies. RESULTS We identified four major mediators, which are recurrently reported in patients with MDD and are associated with reduced TL: inflammation/oxidative stress, dysregulation of the hypothalamic-pituitary-adrenal axis, metabolic dysbalance including insulin resistance, and decreased brain-derived neurotrophic factor. These mediators are also mutually associated and were not systematically assessed in current studies investigating TL and MDD, which might explain inconclusive findings across current literature. Finally, we discuss possible ways to assess those mediators and potential implications of such approaches for future research. LIMITATIONS The majority of identified studies had cross-sectional designs and used heterogeneous methods to assess TL and associated relevant biochemical mediators. CONCLUSIONS A better understanding of the complex interactions between biochemical mediators, somatic comorbidities and shortened telomeres in patients with MDD might further specify the pathophysiology-based conceptualization and, based on that, personalized treatment of MDD.
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Affiliation(s)
- Andrei Manoliu
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric University Hospital, University of Zurich, Lenggstrasse 31, CH-8032 Zurich, Switzerland.
| | - Oliver G Bosch
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric University Hospital, University of Zurich, Lenggstrasse 31, CH-8032 Zurich, Switzerland
| | - Janis Brakowski
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric University Hospital, University of Zurich, Lenggstrasse 31, CH-8032 Zurich, Switzerland
| | - Annette B Brühl
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric University Hospital, University of Zurich, Lenggstrasse 31, CH-8032 Zurich, Switzerland; Department of Psychiatry and Behavioural and Clinical Neuroscience Institute, University of Cambridge, Cambridge, UK
| | - Erich Seifritz
- Department of Psychiatry, Psychotherapy and Psychosomatics, Psychiatric University Hospital, University of Zurich, Lenggstrasse 31, CH-8032 Zurich, Switzerland
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Provenzi L, Scotto di Minico G, Giorda R, Montirosso R. Telomere Length in Preterm Infants: A Promising Biomarker of Early Adversity and Care in the Neonatal Intensive Care Unit? Front Endocrinol (Lausanne) 2017; 8:295. [PMID: 29163364 PMCID: PMC5671586 DOI: 10.3389/fendo.2017.00295] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 10/16/2017] [Indexed: 11/13/2022] Open
Abstract
Preterm infants present an immature neurobehavioral profile at birth, even in absence of severe brain injuries and perinatal complications. As such, they require a long-lasting hospitalization in the Neonatal Intensive Care Unit (NICU), which is thought to grant at-risk newborns' survival, but still entails a number of physical, painful, and socio-emotional stressors. Hence, preterm birth and NICU stay represent an early adverse experience, which has been linked to detrimental consequences for neurological, neuro-endocrinal, behavioral, and socio-emotional development, as well as to disease later in life. Recent advances in the behavioral epigenetic field are helping us to unveil the potential mechanisms through which early NICU-related stress may lead to negative developmental outcomes. From this perspective, telomere regulation might be a key programming mechanism. Telomeres are the terminal portion of chromosomes and are known to get shorter with age. Moreover, telomere length (TL) is affected by the exposure to stress during early development. As such, TL might be an innovative biomarker of early adverse exposures in young infants and children. Unfortunately, there is paucity of studies investigating TL in populations of preterm infants and its association with known NICU-related stressors remains unexplored. In the present paper, the potential relevance of TL for research and clinical work with preterm infants will be underlined in the light of recent contributions linking progressive telomere shortening and early exposure to adverse experiences and stressful environments in humans. Finally, insights will be provided to guide clinically relevant translational research on TL in the field of VPT birth and NICU stay.
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Affiliation(s)
- Livio Provenzi
- 0–3 Center for the At-Risk Infant, Scientific Institute IRCCS Eugenio Medea, Lecco, Italy
| | | | - Roberto Giorda
- Molecular Biology Laboratory, Scientific Institute, IRCCS Eugenio Medea, Lecco, Italy
| | - Rosario Montirosso
- 0–3 Center for the At-Risk Infant, Scientific Institute IRCCS Eugenio Medea, Lecco, Italy
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Carlson LE, Zelinski EL, Speca M, Balneaves LG, Jones JM, Santa Mina D, Wayne PM, Campbell TS, Giese-Davis J, Faris P, Zwicker J, Patel K, Beattie TL, Cole S, Toivonen K, Nation J, Peng P, Thong B, Wong R, Vohra S. Protocol for the MATCH study (Mindfulness and Tai Chi for cancer health): A preference-based multi-site randomized comparative effectiveness trial (CET) of Mindfulness-Based Cancer Recovery (MBCR) vs. Tai Chi/Qigong (TCQ) for cancer survivors. Contemp Clin Trials 2017; 59:64-76. [PMID: 28576734 PMCID: PMC5639905 DOI: 10.1016/j.cct.2017.05.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 05/26/2017] [Accepted: 05/29/2017] [Indexed: 12/18/2022]
Abstract
PURPOSE A growing number of cancer survivors suffer high levels of distress, depression and stress, as well as sleep disturbance, pain and fatigue. Two different mind-body interventions helpful for treating these problems are Mindfulness-Based Cancer Recovery (MBCR) and Tai Chi/Qigong (TCQ). However, while both interventions show efficacy compared to usual care, they have never been evaluated in the same study or directly compared. This study will be the first to incorporate innovative design features including patient choice while evaluating two interventions to treat distressed cancer survivors. It will also allow for secondary analyses of which program best targets specific symptoms in particular groups of survivors, based on preferences and baseline characteristics. METHODS AND SIGNIFICANCE The design is a preference-based multi-site randomized comparative effectiveness trial. Participants (N=600) with a preference for either MBCR or TCQ will receive their preferred intervention; while those without a preference will be randomized into either intervention. Further, within the preference and non-preference groups, participants will be randomized into immediate intervention or wait-list control. Total mood disturbance on the Profile of mood states (POMS) post-intervention is the primary outcome. Other measures taken pre- and post-intervention and at 6-month follow-up include quality of life, psychological functioning, cancer-related symptoms and physical functioning. Exploratory analyses investigate biomarkers (cortisol, cytokines, blood pressure/Heart Rate Variability, telomere length, gene expression), which may uncover potentially important effects on key biological regulatory and antineoplastic functions. Health economic measures will determine potential savings to the health system.
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Affiliation(s)
- Linda E Carlson
- Department of Oncology, University of Calgary, Calgary, AB, Canada; Cancer Control Board, Alberta Health Services, AB, Canada.
| | - Erin L Zelinski
- Department of Oncology, University of Calgary, Calgary, AB, Canada; Cancer Control Board, Alberta Health Services, AB, Canada
| | - Michael Speca
- Department of Oncology, University of Calgary, Calgary, AB, Canada; Cancer Control Board, Alberta Health Services, AB, Canada
| | - Lynda G Balneaves
- College of Nursing, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Jennifer M Jones
- Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada
| | - Daniel Santa Mina
- Faculty of Kinesiology and Physical Education, University of Toronto, Toronto, ON, Canada
| | - Peter M Wayne
- Osher Center for Integrative Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, USA
| | - Tavis S Campbell
- Department of Psychology, University of Calgary, Calgary, AB, Canada
| | - Janine Giese-Davis
- Department of Oncology, University of Calgary, Calgary, AB, Canada; Cancer Control Board, Alberta Health Services, AB, Canada
| | - Peter Faris
- Centre for Advancement of Health, Alberta Health Services, AB, Canada
| | - Jennifer Zwicker
- School of Public Policy, University of Calgary, Calgary, AB, Canada
| | - Kamala Patel
- Department of Immunology, University of Calgary, Calgary, AB, Canada
| | - Tara L Beattie
- Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, Canada
| | - Steve Cole
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Kirsti Toivonen
- Department of Psychology, University of Calgary, Calgary, AB, Canada
| | - Jill Nation
- Department of Oncology, University of Calgary, Calgary, AB, Canada
| | - Philip Peng
- Department of Anesthesia, University of Toronto, ON, Canada
| | - Bruce Thong
- Department of Athletics and Recreation, McMaster University, Hamilton, ON, Canada
| | - Raimond Wong
- Department of Oncology, McMaster University, Hamilton, ON, Canada; Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Sunita Vohra
- Department of Pediatrics, Faculty of Medicine and Dentistry, Integrative Health Institute, University of Alberta, Edmonton, AB, Canada
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Fair B, Mellon SH, Epel ES, Lin J, Révész D, Verhoeven JE, Penninx BW, Reus VI, Rosser R, Hough CM, Mahan L, Burke HM, Blackburn EH, Wolkowitz OM. Telomere length is inversely correlated with urinary stress hormone levels in healthy controls but not in un-medicated depressed individuals-preliminary findings. J Psychosom Res 2017; 99:177-180. [PMID: 28712425 PMCID: PMC5551436 DOI: 10.1016/j.jpsychores.2017.06.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 06/09/2017] [Accepted: 06/13/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVE Leukocyte telomere length (LTL) is a biomarker of cellular aging affected by chronic stress. The relationship of LTL to the stress hormones, cortisol and catecholamines, is unclear, as are possible differences between healthy controls (HC) and individuals with Major Depressive Disorder (MDD). This small pilot study is the first to examine the relationship between cortisol, catecholamines and LTL specifically in un-medicated MDD in comparison with HC. METHODS Participants included 16 un-medicated MDD subjects and 15 HC for assay of LTL, 12-hour overnight urinary free cortisol and catecholamine levels. RESULTS LTL, cortisol and catecholamine levels did not significantly differ between groups. In HC, a hierarchical regression analysis indicated that higher levels of cortisol were correlated with shorter LTL (p=0.003) above and beyond age and sex. Higher catecholamine levels were nearly-significant with shorter LTL (p=0.055). Neither hormone was correlated with shorter LTL in MDD (p's>0.28). To assess a possible cumulative effect of stress hormone activation, a summary score was calculated for each subject based on the number of stress hormone levels above the median for that group (HC or MDD). A significant inverse graded relationship was observed between LTL and the number of activated systems in HC (p=0.001), but not in MDD (p=0.96). CONCLUSION This pilot study provides preliminary evidence that stress hormone levels, especially cortisol, are inversely related to LTL in HC, but not in un-medicated MDD. Clarification of these relationships in larger samples could aid in understanding differential mechanisms underlying stress-related cellular aging in healthy and depressed populations.
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Affiliation(s)
- Brittany Fair
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA,Dept. of Psychiatry, University of Vermont, The Robert Larner, M.D. College of Medicine, Burlington, VT, USA
| | | | - Elissa S. Epel
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA
| | - Jue Lin
- Dept. of Biochemistry and Biophysics, UCSF
| | - Dóra Révész
- Dept. of Psychiatry, EMGO Institute for Health and Care Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - Josine E. Verhoeven
- Dept. of Psychiatry, EMGO Institute for Health and Care Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - Brenda W. Penninx
- Dept. of Psychiatry, EMGO Institute for Health and Care Institute, VU University Medical Center, Amsterdam, The Netherlands
| | - Victor I. Reus
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA
| | - Rebecca Rosser
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA
| | - Christina M. Hough
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA
| | - Laura Mahan
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA
| | - Heather M. Burke
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA
| | | | - Owen M. Wolkowitz
- Dept. of Psychiatry, University of California, San Francisco, School of Medicine (UCSF), San Francisco, CA, USA,Corresponding author: Owen M. Wolkowitz, MD, UCSF Department of Psychiatry, 401 Parnassus Ave., San Francisco, CA 94143-0984, Tel: +1-415-476-7433,
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Barrera G, Cases T, Bunout D, de la Maza MP, Leiva L, Rodriguez JM, Hirsch S. Associations between socioeconomic status, aging and functionality among older women. Geriatr Nurs 2017; 38:347-351. [DOI: 10.1016/j.gerinurse.2014.08.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 08/17/2014] [Accepted: 08/25/2014] [Indexed: 11/28/2022]
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Zipursky RT, Press MC, Srikanthan P, Gornbein J, McClelland R, Watson K, Horwich TB. Relation of Stress Hormones (Urinary Catecholamines/Cortisol) to Coronary Artery Calcium in Men Versus Women (from the Multi-Ethnic Study of Atherosclerosis [MESA]). Am J Cardiol 2017; 119:1963-1971. [PMID: 28456316 DOI: 10.1016/j.amjcard.2017.03.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 03/10/2017] [Accepted: 03/10/2017] [Indexed: 10/19/2022]
Abstract
The relation between high levels of psychosocial stress and the development of coronary artery disease (CAD) has been increasingly recognized, especially in women. We hypothesized that simple biomarkers of stress, urinary catecholamines/cortisol levels, are associated with more coronary artery calcium (CAC), an indicator of CAD, and that this relation is stronger in women compared with men. Using data from the Multi-Ethnic Study of Atherosclerosis Stress study, we examined the relation between urinary catecholamines/cortisol and CAC. The study cohort (n = 654) was 53% women, and 56.4% of the cohort had detectable CAC. Multivariable regression analyses assessed the relation between urinary catecholamines/cortisol and CAC (odds CAC >0 through logistic and ln CAC through Tobit model). There was an association between increased cortisol and increased CAC and an inverse association between dopamine and CAC. These relations were seen in men and women, with no difference between the genders. In conclusion, higher cortisol and lower dopamine levels are independently associated with higher CAC to a similar degree in men and women. These simple urinary biomarkers contribute to our understanding of the role of stress in the pathogenesis of CAD and may be incorporated into future strategies to prevent and treat CAD.
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Occupational stress of anesthesia: Effects on aging. J Clin Anesth 2017; 39:159-164. [DOI: 10.1016/j.jclinane.2017.03.047] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 03/14/2017] [Accepted: 03/31/2017] [Indexed: 11/19/2022]
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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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Roberts AL, Koenen KC, Chen Q, Gilsanz P, Mason SM, Prescott J, Ratanatharathorn A, Rimm EB, Sumner JA, Winning A, De Vivo I, Kubzansky LD. Posttraumatic stress disorder and accelerated aging: PTSD and leukocyte telomere length in a sample of civilian women. Depress Anxiety 2017; 34:391-400. [PMID: 28380289 PMCID: PMC5848097 DOI: 10.1002/da.22620] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 03/08/2017] [Accepted: 03/10/2017] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Studies in male combat veterans have suggested posttraumatic stress disorder (PTSD) is associated with shorter telomere length (TL). We examined the cross-sectional association of PTSD with TL in women exposed to traumas common in civilian life. METHODS Data are from a substudy of the Nurses' Health Study II (N = 116). PTSD and subclinical PTSD were assessed in trauma-exposed women using diagnostic interviews. An array of health behaviors and conditions were assessed. DNA was extracted from peripheral blood leukocytes (collected 1996-1999). Telomere repeat copy number to single gene copy number (T/S) was determined by quantitative real-time PCR telomere assay. We used linear regression models to assess associations and examine whether a range of important health behaviors (e.g., cigarette smoking) and medical conditions (e.g., hypertension) previously associated with TL might explain a PTSD-TL association. We further examined whether type of trauma exposure (e.g., interpersonal violence) was associated with TL and whether trauma type might explain a PTSD-TL association. RESULTS Relative to not having PTSD, women with a PTSD diagnosis had shorter log-transformed TL (β = -.112, 95% confidence interval (CI) = -0.196, -0.028). Adjustment for health behaviors and medical conditions did not attenuate this association. Trauma type was not associated with TL and did not account for the association of PTSD with TL. CONCLUSIONS Our results add to growing evidence that PTSD may be associated with more rapid cellular aging as measured by telomere erosion. Moreover, the association could not be explained by health behaviors and medical conditions assessed in this study, nor by type of trauma exposure.
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Affiliation(s)
- Andrea L. Roberts
- Department of Social and Behavioral Health, Harvard T. H. Chan School of Public Health
| | - Karestan C. Koenen
- Department of Epidemiology, Harvard T. H. Chan School of Public Health,Department of Psychiatry, Massachusetts General Hospital, Boston MA
| | - Qixuan Chen
- Department of Biostatistics, Columbia Mailman School of Public Health
| | - Paola Gilsanz
- Department of Social and Behavioral Health, Harvard T. H. Chan School of Public Health
| | - Susan M. Mason
- Division of Epidemiology and Community Health, University of Minnesota School of Public Health
| | - Jennifer Prescott
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School
| | | | - Eric B. Rimm
- Department of Epidemiology, Harvard T. H. Chan School of Public Health,Department of Nutrition, Harvard T. H. Chan School of Public Health
| | - Jennifer A. Sumner
- Department of Epidemiology, Harvard T. H. Chan School of Public Health,Center for Behavioral Cardiovascular Health, Columbia University Medical Center
| | - Ashley Winning
- Department of Social and Behavioral Health, Harvard T. H. Chan School of Public Health
| | - Immaculata De Vivo
- Department of Epidemiology, Harvard T. H. Chan School of Public Health,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School
| | - Laura D. Kubzansky
- Department of Social and Behavioral Health, Harvard T. H. Chan School of Public Health
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Liu SY, Kawachi I. Discrimination and Telomere Length Among Older Adults in the United States. Public Health Rep 2017; 132:220-230. [PMID: 28147207 DOI: 10.1177/0033354916689613] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Chronic stress from experiencing discrimination can lead to long-term changes in psychological and physiologic responses, including shorter leukocyte telomere length. We examined the association between leukocyte telomere length and variations in the association by race or type of discrimination. METHODS Our study consisted of 3868 US-born non-Hispanic black (hereinafter, black) and non-Hispanic white (hereinafter, white) adult participants from the 2008 Health and Retirement Study biomarker sample with complete sociodemographic and discrimination information. We examined major lifetime unfair treatment and everyday discrimination. Coarsened exact matching matched exposed and unexposed participants on several sociodemographic factors. Coarsened exact matching creates analytic weights for the matched data sets. We applied weighted linear regression to the matched data sets. We conducted 2 subanalyses in which we matched on potential mediators-physical activity, smoking status, and obesity-and examined if racism was associated with shorter telomere length compared with other attributes. All analyses were stratified by race. RESULTS We found no difference in telomere length for black and white participants reporting major lifetime unfair treatment (β = 0.09; 95% CI, -0.33 to 0.15) or everyday discrimination (β = 0.04; 95% CI, -0.12 to 0.40). Everyday discrimination was associated with shorter leukocyte telomere length among black people (β = -0.23; 95% CI, -0.44 to -0.01) but not among white people (β = 0.05; 95% CI, -0.01 to 0.10). Matching on potential mediators generally decreased the effect estimate among black people. CONCLUSIONS Experiencing everyday discrimination was associated with shortened telomere length among older black adults. Further research is needed to understand the adverse physiologic effects of discrimination to create effective interventions.
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Affiliation(s)
- Sze Yan Liu
- 1 Harvard Center for Population and Development Studies, Boston, MA, USA
| | - Ichiro Kawachi
- 2 Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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45
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Lopizzo N, Tosato S, Begni V, Tomassi S, Cattane N, Barcella M, Turco G, Ruggeri M, Riva MA, Pariante CM, Cattaneo A. Transcriptomic analyses and leukocyte telomere length measurement in subjects exposed to severe recent stressful life events. Transl Psychiatry 2017; 7:e1042. [PMID: 28221367 PMCID: PMC5438034 DOI: 10.1038/tp.2017.5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/23/2016] [Accepted: 12/08/2016] [Indexed: 02/07/2023] Open
Abstract
Stressful life events occurring in adulthood have been found able to affect mood and behavior, thus increasing the vulnerability for several stress-related psychiatric disorders. However, although there is plenty of clinical data supporting an association between stressful life events in adulthood and an enhanced vulnerability for psychopathology, the underlying molecular mechanisms are still poorly investigated. Thus, in this study we performed peripheral/whole-genome transcriptomic analyses in blood samples obtained from 53 adult subjects characterized for recent stressful life events occurred within the previous 6 months. Transcriptomic data were analyzed using Partek Genomics Suite; pathway and network analyses were performed using Ingenuity Pathway Analysis and GeneMANIA Software. We found 207 genes significantly differentially expressed in adult subjects who reported recent stressful life experiences (n=21) compared with those without such experiences (n=32). Moreover, the same subjects exposed to such stressful experiences showed a reduction in leukocyte telomere length. A correlation analyses between telomere length and transcriptomic data indicated an association between the exposures to recent stressful life events and the modulation of several pathways, mainly involved in immune-inflammatory-related processes and oxidative stress, such as natural killer cell signaling, interleukin-1 (IL-1) signaling, MIF regulation of innate immunity and IL-6 signaling. Our data suggest an association between exposures to recent stressful life events in adulthood and alterations in the immune, inflammatory and oxidative stress pathways, which could be also involved in the negative effect of stressful life events on leukocyte telomere length. The modulation of these mechanisms may underlie the clinical association between the exposure to recent Stressful life events in adulthood and an enhanced vulnerability to develop psychiatric diseases in adulthood.
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Affiliation(s)
- N Lopizzo
- Biological Psychiatry Unit, IRCCS Fatebenefratelli S. Giovanni di Dio, Brescia, Italy
| | - S Tosato
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Psychiatry, University of Verona, Verona, Italy
| | - V Begni
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - S Tomassi
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Psychiatry, University of Verona, Verona, Italy
| | - N Cattane
- Biological Psychiatry Unit, IRCCS Fatebenefratelli S. Giovanni di Dio, Brescia, Italy
| | - M Barcella
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Psychiatry, University of Verona, Verona, Italy
| | - G Turco
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Psychiatry, University of Verona, Verona, Italy
| | - M Ruggeri
- Department of Neurosciences, Biomedicine and Movement Sciences, Section of Psychiatry, University of Verona, Verona, Italy
| | - M A Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - C M Pariante
- Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, King's College, London, London, UK
| | - A Cattaneo
- Biological Psychiatry Unit, IRCCS Fatebenefratelli S. Giovanni di Dio, Brescia, Italy,Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, King's College, London, London, UK,Stress, Psychiatry and Immunology Laboratory, Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, 125 Coldharbour Lane, London SE5 9NU, UK. E-mail:
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Telomere-associated aging disorders. Ageing Res Rev 2017; 33:52-66. [PMID: 27215853 PMCID: PMC9926533 DOI: 10.1016/j.arr.2016.05.009] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/17/2016] [Accepted: 05/19/2016] [Indexed: 01/25/2023]
Abstract
Telomeres are dynamic nucleoprotein-DNA structures that cap and protect linear chromosome ends. Several monogenic inherited diseases that display features of human premature aging correlate with shortened telomeres, and are referred to collectively as telomeropathies. These disorders have overlapping symptoms and a common underlying mechanism of telomere dysfunction, but also exhibit variable symptoms and age of onset, suggesting they fall along a spectrum of disorders. Primary telomeropathies are caused by defects in the telomere maintenance machinery, whereas secondary telomeropathies have some overlapping symptoms with primary telomeropathies, but are generally caused by mutations in DNA repair proteins that contribute to telomere preservation. Here we review both the primary and secondary telomeropathies, discuss potential mechanisms for tissue specificity and age of onset, and highlight outstanding questions in the field and future directions toward elucidating disease etiology and developing therapeutic strategies.
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Wang R, An C, Wang J, Wang Y, Song M, Li N, Chen Y, Sun F, Chen X, Wang X. Earthquake Experience at Different Trimesters during Pregnancy Is Associated with Leukocyte Telomere Length and Long-term Health in Adulthood. Front Psychiatry 2017; 8:208. [PMID: 29085308 PMCID: PMC5650723 DOI: 10.3389/fpsyt.2017.00208] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 10/03/2017] [Indexed: 11/13/2022] Open
Abstract
Leukocyte telomere length (LTL) is a predictor of age-related diseases, cancer, and even early mortality. Prenatal stress experience has been suggested to associate with short LTL and an increased disease risk in adult life. The present study aimed to evaluate the 39-year effects of prenatal earthquake stress (PES) exposure on LTL and increased age-related disease risk in adulthood. Here, we compared the LTL in the subjects who were exposed to PES to healthy controls (CN) and evaluated whether stress exposure at different times during pregnancy is associated with a shorter LTL and long-term health conditions in adulthood. LTL was measured in 100 adults who experienced the 1976 7.8 Richter scale Tangshan earthquake of the Hebei province in utero and divided them into first, second, and third trimester groups according to the exposure timing during pregnancy. A total of 80 healthy volunteers from Shijiazhuang of the Hebei province were also assessed for their LTL. The telomere-to-single copy gene (T/S) ratio of the PES group (0.78 ± 0.06, p = 0.04) showed a significantly lower LTL than the CN group (0.97 ± 0.08). The results of the LTL analysis indicated that the subjects who experienced PES in the second (0.69 ± 0.09, p = 0.04) or third trimester (0.67 ± 0.76, p = 0.02) showed significantly shorter LTLs compared with those in the first trimester group (0.99 ± 0.12). A fully adjusted regression model indicated the same conclusions. In addition, we found that systolic pressure (SBP; 129.32 ± 14.86 mmHg, p = 0.041), body mass index (BMI; 22.54 ± 2.71, p = 0.046), and low-density lipoprotein (LDL; 3.09 ± 0.98 mmol/L, p = 0.048) in the subjects with PES were significantly higher than those measurements in the CN subjects (SBP; 122.06 ± 10.55 mmHg; BMI; 20.24 ± 2.13; LDL; 2.91 ± 0.76 mmol/L), and there was a significant negative correlation between an increased adult hypertension risk and a shorter LTL.
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Affiliation(s)
- Ran Wang
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Cuixia An
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jincheng Wang
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yumei Wang
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Mei Song
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Na Li
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanan Chen
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Feifei Sun
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xingshi Chen
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xueyi Wang
- Department of Psychiatry, The First Hospital of Hebei Medical University, Shijiazhuang, China.,Mental Health Institute of Hebei Medical University, Shijiazhuang, China.,Brain Ageing and Cognitive Neuroscience Laboratory, The First Hospital of Hebei Medical University, Shijiazhuang, China
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Zhang C, Lauderdale DS, Pierce BL. Sex-Specific and Time-Varying Associations Between Cigarette Smoking and Telomere Length Among Older Adults. Am J Epidemiol 2016; 184:922-932. [PMID: 27856448 DOI: 10.1093/aje/kww102] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 09/07/2016] [Indexed: 12/26/2022] Open
Abstract
Inconsistent associations between smoking and telomere length (TL) have been reported in epidemiologic studies, perhaps because of the time-varying nature of smoking behaviors. We estimated the associations of TL, which was measured by quantitative polymerase chain reaction using saliva DNA, with concurrent and past smoking status reported biennially for up to 16 years before TL measurement in 5,624 participants in the Health and Retirement Study (1992-2008). Smoking was associated with reduced TL when we used prospective data on smoking statuses among men and women, but the association was strongly attenuated among men in cross-sectional analyses. This attenuation was largely due to a higher rate of smoking cessation during the study period among men with shorter TL than among men with longer TL. Short TL was also associated with poorer overall health in men, which suggests that male smokers with short TL were more likely to quit smoking because of poor health. Analyses of years since cessation, smoking duration, and pack-years of smoking all support the hypothesis that increased cigarette use shortens TL. Our results provide a potential explanation for the inconsistent associations between smoking and TL reported in previous cross-sectional studies. Time-varying associations should be considered in future studies of smoking behavior, TL, aging, and disease risk.
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Schutte NS, Malouff JM. The Relationship Between Perceived Stress and Telomere Length: A Meta-analysis. Stress Health 2016; 32:313-319. [PMID: 25393133 DOI: 10.1002/smi.2607] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/29/2014] [Accepted: 07/30/2014] [Indexed: 11/06/2022]
Abstract
Telomeres protect the ends of chromosomes, and short telomere length is associated with poor health and mortality. This study reports a meta-analytic investigation of the relationship between perceived stress and telomere length, including results from eight studies with a total of 1143 participants. A meta-analytic effect size of r = -0.25, p < 0.001, indicated that higher levels of perceived stress were associated with shorter telomere length. Examination of the studies for moderators of effect size identified some significant moderators, such as a difference in effect sizes between samples comprised of only women and mixed-sex samples. These results are only suggestive as they are based on a small set of studies, and funnel plot analyses indicated a publication bias. A significant relationship between more perceived stress and shorter telomere length is consistent with theoretical frameworks positing that stress induces physiological changes that result in shortened telomeres. Copyright © 2014 John Wiley & Sons, Ltd.
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Révész D, Verhoeven JE, Milaneschi Y, Penninx BWJH. Depressive and anxiety disorders and short leukocyte telomere length: mediating effects of metabolic stress and lifestyle factors. Psychol Med 2016; 46:2337-2349. [PMID: 27266474 DOI: 10.1017/s0033291716000891] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Depressive and anxiety disorders are associated with shorter leukocyte telomere length (LTL), an indicator of cellular aging. It is, however, unknown which pathways underlie this association. This study examined the extent to which lifestyle factors and physiological changes such as inflammatory or metabolic alterations mediate the relationship. METHOD We applied mediation analysis techniques to data from 2750 participants of the Netherlands Study of Depression and Anxiety. LTL was assessed using quantitative polymerase chain reaction. Independent variables were current depressive (30-item Inventory of Depressive Symptoms - Self Report) and anxiety (21-item Beck's Anxiety Inventory) symptoms and presence of a depressive or anxiety disorder diagnosis based on DSM-IV; mediator variables included physiological stress systems, metabolic syndrome components and lifestyle factors. RESULTS Short LTL was associated with higher symptom severity (B = -2.4, p = 0.002) and current psychiatric diagnosis (B = -63.3, p = 0.024). C-reactive protein, interleukin-6, waist circumference, triglycerides, high-density lipoprotein cholesterol and cigarette smoking were significant mediators in the relationship between psychopathology and LTL. When all significant mediators were included in one model, the effect sizes of the relationships between LTL and symptom severity and current diagnosis were reduced by 36.7 and 32.7%, respectively, and the remaining direct effects were no longer significant. CONCLUSIONS Pro-inflammatory cytokines, metabolic alterations and cigarette smoking are important mediators of the association between depressive and anxiety disorders and LTL. This calls for future research on intervention programs that take into account lifestyle changes in mental health care settings.
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Affiliation(s)
- D Révész
- Department of Psychiatry and EMGO Institute for Health and Care Research,VU University Medical Center,Amsterdam,The Netherlands
| | - J E Verhoeven
- Department of Psychiatry and EMGO Institute for Health and Care Research,VU University Medical Center,Amsterdam,The Netherlands
| | - Y Milaneschi
- Department of Psychiatry and EMGO Institute for Health and Care Research,VU University Medical Center,Amsterdam,The Netherlands
| | - B W J H Penninx
- Department of Psychiatry and EMGO Institute for Health and Care Research,VU University Medical Center,Amsterdam,The Netherlands
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