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Long E, Zhang J. Evidence for the role of selection for reproductively advantageous alleles in human aging. SCIENCE ADVANCES 2023; 9:eadh4990. [PMID: 38064565 PMCID: PMC10708185 DOI: 10.1126/sciadv.adh4990] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 11/07/2023] [Indexed: 12/18/2023]
Abstract
The antagonistic pleiotropy hypothesis posits that natural selection for pleiotropic mutations that confer earlier or more reproduction but impair the post-reproductive life causes aging. This hypothesis of the evolutionary origin of aging is supported by case studies but lacks unambiguous genomic evidence. Here, we genomically test this hypothesis using the genotypes, reproductive phenotypes, and death registry of 276,406 U.K. Biobank participants. We observe a strong, negative genetic correlation between reproductive traits and life span. Individuals with higher polygenetic scores for reproduction (PGSR) have lower survivorships to age 76 (SV76), and PGSR increased over birth cohorts from 1940 to 1969. Similar trends are seen from individual genetic variants examined. The antagonistically pleiotropic variants are often associated with cis-regulatory effects across multiple tissues or on multiple target genes. These and other findings support the antagonistic pleiotropy hypothesis of aging in humans and point to potential molecular mechanisms of the reproduction-life-span antagonistic pleiotropy.
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Affiliation(s)
- Erping Long
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, China
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jianzhi Zhang
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI 48109, USA
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2
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He S, McArdle PF, Ryan KA, Daue M, Xu H, Barry KH, Magder LS, Shuldiner AR, Pollin TI, Mitchell BD. Association of parity with body mass index and cardiometabolic risk in high-parous women. Menopause 2023; 30:703-708. [PMID: 37159869 PMCID: PMC10313795 DOI: 10.1097/gme.0000000000002194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
OBJECTIVE Postpregnancy weight retention contributes to obesity, but the long-term effect of parity on body mass index (BMI) and other cardiometabolic risk factors is unclear. We aimed to evaluate the relationship between parity and BMI among highly parous Amish women, both before and after menopause, and to evaluate the associations of parity with glucose, blood pressure, and lipids. METHODS We conducted a cross-sectional study among 3,141 Amish women 18 years or older from Lancaster County, PA, who participated in our community-based Amish Research Program between 2003 and 2020. We evaluated the association between parity and BMI across different age groups, both before and after the menopausal transition. We further assessed associations between parity and cardiometabolic risk factors among the 1,128 postmenopausal women. Finally, we evaluated the association of change in parity with change in BMI in 561 women followed longitudinally. RESULTS Approximately 62% of women in this sample (mean age, 45.2 y) reported having four or more children, and 36% reported having seven or more. A one-child increase in parity was associated with increased BMI in both premenopausal women (estimate [95% confidence interval], 0.4 kg/m 2 [0.2-0.5]) and to a lesser degree in postmenopausal women (0.2 kg/m 2 [0.02-0.3], Pint = 0.02), suggesting that the impact of parity on BMI decreases over time. Parity was not associated with glucose, blood pressure, total cholesterol, low-density lipoprotein, or triglycerides ( Padj > 0.05). CONCLUSIONS Higher parity was associated with increased BMI in both premenopausal and postmenopausal women, but more so in younger/premenopausal women. Parity was not associated with other indices of cardiometabolic risk.
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Affiliation(s)
- Shisi He
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Patrick F. McArdle
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Kathleen A. Ryan
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Melanie Daue
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Huichun Xu
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Kathryn Hughes Barry
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
- Program in Oncology, University of Maryland Marlene and Stewart Greenebaum Comprehensive Cancer Center, Baltimore, MD
| | - Laurence S. Magder
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Alan R. Shuldiner
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Toni I. Pollin
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Braxton D. Mitchell
- Division of Endocrinology, Diabetes and Nutrition, Department of Medicine and Program for Personalized Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD
- Geriatrics Research and Education Clinical Center, Baltimore Veterans Administration Medical Center, Baltimore, MD, USA
- Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore, MD, USA
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3
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Sex differences in longevity are relative, not independent. Behav Brain Sci 2022; 45:e150. [PMID: 35875961 DOI: 10.1017/s0140525x22000401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
I ask three questions related to the claims made within the staying alive theory (SAT): Is survival more fitness-enhancing for females than for males? Does the historical record on sex differences in mortality support the SAT? Is it possible to talk about "independent selective pressures on both male and female traits" when all we have are sex/gender comparisons?
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Does informal care reduce health care utilisation in older age? Evidence from China. Soc Sci Med 2022; 306:115123. [PMID: 35724586 DOI: 10.1016/j.socscimed.2022.115123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 05/08/2022] [Accepted: 06/07/2022] [Indexed: 11/23/2022]
Abstract
Studies in Western countries suggest that receiving informal care from family members may reduce utilisation of health care services. This hypothesis has not been examined in China, where the population is ageing rapidly. We assess the impact of informal care from offspring (children and grandchildren) on health care utilisation and expenditures among older people in China. Data are drawn from the 2011, 2014, and 2018 waves of the Chinese Longitudinal Healthy Longevity Survey. Using lagged model with the instrumental variable approach, we find that the impact of informal care is different by type of health care: More hours of informal care from offspring reduces overall health care utilisation, and in particular, outpatient care utilisation, but it increases inpatient care utilisation and expenditures. Our results suggest that informal care reduces the demand for outpatient care but increases the demand for inpatient care, possible reflecting the fact that the latter involves more advanced procedures for which informal care is not a substitute but a complement. Results highlight the need for incorporating health care impacts in the analysis and evaluation of policies that affect informal care provision.
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Michaeli J, Smoom R, Serruya N, El Ayoubi H, Rotshenker-Olshinka K, Srebnik N, Michaeli O, Eldar-Geva T, Tzfati Y. Leukocyte Telomere Length Correlates with Extended Female Fertility. Cells 2022; 11:cells11030513. [PMID: 35159322 PMCID: PMC8834216 DOI: 10.3390/cells11030513] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/23/2022] [Accepted: 01/31/2022] [Indexed: 12/04/2022] Open
Abstract
Current social trends of delayed reproduction to the fourth and fifth decade of life call for a better understanding of reproductive aging. Demographic studies correlated late reproduction with general health and longevity. Telomeres, the protective ends of eukaryotic chromosomes, were implicated in various aging-associated pathologies and longevity. To examine whether telomeres are also associated with reproductive aging, we measured by Southern analysis the terminal restriction fragments (TRF) in leukocytes of women delivering a healthy infant following a spontaneous pregnancy at 43–48 years of age. We compared them to age-matched previously fertile women who failed to conceive above age 41. The average TRF length in the extended fertility group (9350 bp) was significantly longer than in the normal fertility group (8850 bp; p-value = 0.03). Strikingly, excluding women with nine or more children increased the difference between the groups to over 1000 bp (9920 and 8880 bp; p-value = 0.0009). Nevertheless, we observed no apparent effects of pregnancy, delivery, or parity on telomere length. We propose that longer leukocyte telomere length reflects higher oocyte quality, which can compensate for other limiting physiological and behavioral factors and enable successful reproduction. Leukocyte telomere length should be further explored as a novel biomarker of oocyte quality for assessing reproductive potential and integrating family planning with demanding women’s careers.
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Affiliation(s)
- Jennia Michaeli
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Affiliated with the Hebrew University School of Medicine, Jerusalem 9103102, Israel; (K.R.-O.); (N.S.); (T.E.-G.)
- Department of Genetics, The Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel; (R.S.); (N.S.); (H.E.A.); (O.M.)
- Correspondence: (J.M.); (Y.T.)
| | - Riham Smoom
- Department of Genetics, The Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel; (R.S.); (N.S.); (H.E.A.); (O.M.)
| | - Noa Serruya
- Department of Genetics, The Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel; (R.S.); (N.S.); (H.E.A.); (O.M.)
| | - Hosniyah El Ayoubi
- Department of Genetics, The Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel; (R.S.); (N.S.); (H.E.A.); (O.M.)
| | - Keren Rotshenker-Olshinka
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Affiliated with the Hebrew University School of Medicine, Jerusalem 9103102, Israel; (K.R.-O.); (N.S.); (T.E.-G.)
| | - Naama Srebnik
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Affiliated with the Hebrew University School of Medicine, Jerusalem 9103102, Israel; (K.R.-O.); (N.S.); (T.E.-G.)
| | - Ofir Michaeli
- Department of Genetics, The Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel; (R.S.); (N.S.); (H.E.A.); (O.M.)
| | - Talia Eldar-Geva
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center Affiliated with the Hebrew University School of Medicine, Jerusalem 9103102, Israel; (K.R.-O.); (N.S.); (T.E.-G.)
| | - Yehuda Tzfati
- Department of Genetics, The Silberman Institute of Life Sciences, The Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel; (R.S.); (N.S.); (H.E.A.); (O.M.)
- Correspondence: (J.M.); (Y.T.)
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Costanian C, Farah R, Salameh R, Meisner BA, Aoun Bahous S, Sibai AM. The Influence of Female Reproductive Factors on Longevity: A Systematized Narrative Review of Epidemiological Studies. Gerontol Geriatr Med 2022; 8:23337214221138663. [DOI: 10.1177/23337214221138663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/22/2022] [Accepted: 10/27/2022] [Indexed: 11/19/2022] Open
Abstract
Purpose: This systematized review presents a synthesis of epidemiological studies that examine the association between female reproductive factors and longevity indicators. Methods: A comprehensive literature search was conducted using four bibliographic databases: OVID Medline, Web of Science, PubMed, and Google Scholar, including English language articles published until March 2022. Results from the search strategy yielded 306 articles, 37 of which were included for review based on eligibility criteria. Results were identified within the following nine themes: endogenous androgens and estrogens, age at first childbirth, age at last childbirth, parity, reproductive lifespan, menopause-related factors, hormone therapy use, age at menarche, and offspring gender. Results: Evidence that links reproductive factors and long lifespan is limited. Several female reproductive factors are shown to be significantly associated with longevity, yet findings remain inconclusive. The most consistent association was between parity (fertility and fecundity) and increased female lifespan. Age at first birth and parity were consistently associated with increased longevity. Associations between age at menarche and menopause, premature menopause, reproductive lifespan, offspring gender and longevity are inconclusive. Conclusion: There is not enough evidence to consider sex a longevity predictor. To understand the mechanisms that predict longevity outcomes, it is imperative to consider sex-specific within-population differences.
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Affiliation(s)
| | | | | | | | | | - Abla M. Sibai
- Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon
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Rottenstreich M, Rotem R, Samueloff A, Sela HY, Grisaru-Granovsky S. Trial of labor after cesarean delivery in grand multiparous women: maternal and neonatal outcomes. J Matern Fetal Neonatal Med 2020; 35:2629-2634. [PMID: 32664760 DOI: 10.1080/14767058.2020.1790518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
OBJECTIVE To evaluate success rates of vaginal birth after cesarean (VBAC) and maternal and neonatal outcomes associated with trial of labor after cesarean in grand multiparous women. STUDY DESIGN A retrospective computerized data base study was conducted at a single tertiary center, between 2005 and 2019. The study compared the maternal and neonatal outcomes of trial of labor after cesarean delivery in grand multiparous women (parity ≥ 6) as compared to multiparous women (parity: 3-5). Comparison analysis was performed by univariate analysis and followed by adjusted multiple logistic regression models. RESULTS During the study period we identified 2749 and 4294 cases of trial of labor after cesarean in grand multiparous and multiparas, respectively. VBAC was observed in 94.6% of the grand multiparous as compared to 96.5% in the multiparous group, p < .01. The grand multiparous group had a higher rate of postpartum hemorrhage (3 vs. 2.2%, p = .03) and prolonged postpartum hospitalization (1.4 vs. 0.7%, p < .01). The rates of uterine rupture (0.3 vs. 0.2%, p=.50), peripartum hysterectomy (0.1 vs. 0%, p = .33) and adverse neonatal outcomes were comparable between the groups. CONCLUSION Trial of labor after cesarean in grand multiparous women is associated with favorable maternal and neonatal outcomes. Consideration and awareness should be given for the increased risk for postpartum hemorrhage, not associated with uterine rupture.
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Affiliation(s)
- Misgav Rottenstreich
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel.,Department of Nursing, Jerusalem College of Technology, Jerusalem, Israel
| | - Reut Rotem
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel
| | - Arnon Samueloff
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel
| | - Hen Y Sela
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel
| | - Sorina Grisaru-Granovsky
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Hebrew University School of Medicine, Jerusalem, Israel
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8
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Cawthon RM, Meeks HD, Sasani TA, Smith KR, Kerber RA, O'Brien E, Baird L, Dixon MM, Peiffer AP, Leppert MF, Quinlan AR, Jorde LB. Germline mutation rates in young adults predict longevity and reproductive lifespan. Sci Rep 2020; 10:10001. [PMID: 32561805 PMCID: PMC7305191 DOI: 10.1038/s41598-020-66867-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/28/2020] [Indexed: 12/22/2022] Open
Abstract
Ageing may be due to mutation accumulation across the lifespan, leading to tissue dysfunction, disease, and death. We tested whether germline autosomal mutation rates in young adults predict their remaining survival, and, for women, their reproductive lifespans. Age-adjusted mutation rates (AAMRs) in 61 women and 61 men from the Utah CEPH (Centre d’Etude du Polymorphisme Humain) families were determined. Age at death, cause of death, all-site cancer incidence, and reproductive histories were provided by the Utah Population Database, Utah Cancer Registry, and Utah Genetic Reference Project. Higher AAMRs were significantly associated with higher all-cause mortality in both sexes combined. Subjects in the top quartile of AAMRs experienced more than twice the mortality of bottom quartile subjects (hazard ratio [HR], 2.07; 95% confidence interval [CI], 1.21–3.56; p = 0.008; median survival difference = 4.7 years). Fertility analyses were restricted to women whose age at last birth (ALB) was ≥ 30 years, the age when fertility begins to decline. Women with higher AAMRs had significantly fewer live births and a younger ALB. Adult germline mutation accumulation rates are established in adolescence, and later menarche in women is associated with delayed mutation accumulation. We conclude that germline mutation rates in healthy young adults may provide a measure of both reproductive and systemic ageing. Puberty may induce the establishment of adult mutation accumulation rates, just when DNA repair systems begin their lifelong decline.
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Affiliation(s)
- Richard M Cawthon
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.
| | - Huong D Meeks
- Population Science, Huntsman Cancer Institute, University of Utah Health, Salt Lake City, UT, United States
| | - Thomas A Sasani
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Ken R Smith
- Population Science, Huntsman Cancer Institute, University of Utah Health, Salt Lake City, UT, United States
| | - Richard A Kerber
- Department of Health Management & Systems Sciences, University of Louisville, Louisville, KY, United States
| | - Elizabeth O'Brien
- Department of Health Management & Systems Sciences, University of Louisville, Louisville, KY, United States
| | - Lisa Baird
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Melissa M Dixon
- Department of Pediatrics, University of Utah, Salt Lake City, UT, United States
| | - Andreas P Peiffer
- Department of Pediatrics, University of Utah, Salt Lake City, UT, United States
| | - Mark F Leppert
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States
| | - Aaron R Quinlan
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.,Department of Biomedical Informatics, University of Utah, Salt Lake City, UT, United States.,USTAR Center for Genetic Discovery, University of Utah, Salt Lake City, UT, United States
| | - Lynn B Jorde
- Department of Human Genetics, University of Utah, Salt Lake City, UT, United States.,USTAR Center for Genetic Discovery, University of Utah, Salt Lake City, UT, United States
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Deems NP, Leuner B. Pregnancy, postpartum and parity: Resilience and vulnerability in brain health and disease. Front Neuroendocrinol 2020; 57:100820. [PMID: 31987814 PMCID: PMC7225072 DOI: 10.1016/j.yfrne.2020.100820] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/25/2019] [Accepted: 01/21/2020] [Indexed: 02/07/2023]
Abstract
Risk and resilience in brain health and disease can be influenced by a variety of factors. While there is a growing appreciation to consider sex as one of these factors, far less attention has been paid to sex-specific variables that may differentially impact females such as pregnancy and reproductive history. In this review, we focus on nervous system disorders which show a female bias and for which there is data from basic research and clinical studies pointing to modification in disease risk and progression during pregnancy, postpartum and/or as a result of parity: multiple sclerosis (MS), depression, stroke, and Alzheimer's disease (AD). In doing so, we join others (Shors, 2016; Galea et al., 2018a) in aiming to illustrate the importance of looking beyond sex in neuroscience research.
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Affiliation(s)
- Nicholas P Deems
- The Ohio State University, Department of Psychology, Columbus, OH, USA
| | - Benedetta Leuner
- The Ohio State University, Department of Psychology, Columbus, OH, USA.
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10
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“A Glance Back” at the Journals of Gerontology: We’ve Come a Long Way, Baby! J Gerontol A Biol Sci Med Sci 2020; 75:205-206. [DOI: 10.1093/gerona/glz170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Indexed: 11/12/2022] Open
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12
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Zhu Q, Fu S, Zhang Q, Tian J, Zhao Y, Yao Y. Female Fertility Has a Negative Relationship With Longevity in Chinese Oldest-Old Population: A Cross-Sectional Study. Front Endocrinol (Lausanne) 2020; 11:616207. [PMID: 33613452 PMCID: PMC7887279 DOI: 10.3389/fendo.2020.616207] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 12/14/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Despite research efforts in this field for more than a century, the relationship between female fertility and longevity is unclear. This study was designed to investigate this relationship in Chinese oldest-old population. METHODS The China Hainan Centenarian Cohort Study was performed in 18 cities and counties of Hainan. A total of 1,226 females, including 758 centenarian women and 468 women aged 80-99 years, were enrolled in this study. Using a standardized protocol, in-person interviews and blood analyses were conducted by a well-trained research team through home visits. RESULTS Centenarian women had significantly lower number of children (NOC) and higher initial childbearing age (ICA) and last childbearing age (LCA) than women aged 80-99 years (p < 0.05 for all). Multivariate logistic regression analysis showed that NOC and testosterone (T) levels were positively associated with women aged 80-99 years, when centenarian women was considered as reference (p < 0.05 for all). ICA, LCA, and estradiol (E2) levels were negatively associated with women aged 80-99 years, when centenarian women was considered as reference (p < 0.05 for all). CONCLUSIONS The centenarians had crucial characteristics of less and delayed childbearing, indicating a negative relationship between female fertility and longevity in Chinese oldest-old population. Serum E2 levels were positively associated and serum T levels were negatively associated with longevity. The less and late childbearing might be a significant factor of longevity, and successful aging might be promoted by reducing and delaying female childbearing.
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Affiliation(s)
- Qiao Zhu
- Central Laboratory, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
| | - Shihui Fu
- Department of Cardiology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
| | - Qian Zhang
- Department of Neurology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
| | - Jinwen Tian
- Department of Cardiology, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
- *Correspondence: Jinwen Tian, ; Yali Zhao, ; Yao Yao,
| | - Yali Zhao
- Central Laboratory, Hainan Hospital of Chinese People’s Liberation Army General Hospital, Sanya, China
- *Correspondence: Jinwen Tian, ; Yali Zhao, ; Yao Yao,
| | - Yao Yao
- Center for Healthy Aging and Development Studies, Raissun Institute for Advanced Studies, National School of Development, Peking University, Beijing, China
- Center for the Study of Aging and Human Development and Geriatrics Division, Medical School of Duke University, Durham, NC, United States
- *Correspondence: Jinwen Tian, ; Yali Zhao, ; Yao Yao,
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Nenko I, Hayward AD, Simons MJP, Lummaa V. Early-life environment and differences in costs of reproduction in a preindustrial human population. PLoS One 2018; 13:e0207236. [PMID: 30540747 PMCID: PMC6291071 DOI: 10.1371/journal.pone.0207236] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/27/2018] [Indexed: 11/19/2022] Open
Abstract
Reproduction is predicted to trade-off with long-term maternal survival, but the survival costs often vary between individuals, cohorts and populations, limiting our understanding of this trade-off, which is central to life-history theory. One potential factor generating variation in reproductive costs is variation in developmental conditions, but the role of early-life environment in modifying the reproduction-survival trade-off has rarely been investigated. We quantified the effect of early-life environment on the trade-off between female reproduction and survival in pre-industrial humans by analysing individual-based life-history data for >80 birth cohorts collected from Finnish church records, and between-year variation in local crop yields, annual spring temperature, and infant mortality as proxies of early-life environment. We predicted that women born during poor environmental conditions would show higher costs of reproduction in terms of survival compared to women born in better conditions. We found profound variation between the studied cohorts in the correlation between reproduction and longevity and in the early-life environment these cohorts were exposed to, but no evidence that differences in early-life environment or access to wealth affected the trade-off between reproduction and survival. Our results therefore do not support the hypothesis that differences in developmental conditions underlie the observed heterogeneity in reproduction-survival trade-off between individuals.
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Affiliation(s)
- Ilona Nenko
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
- * E-mail:
| | - Adam D. Hayward
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, United Kingdom
| | - Mirre J. P. Simons
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, United Kingdom
- Bateson Centre, University of Sheffield, Sheffield, United Kingdom
| | - Virpi Lummaa
- Department of Biology, University of Turku, Turku, Finland
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Bartke A, Quainoo N. Impact of Growth Hormone-Related Mutations on Mammalian Aging. Front Genet 2018; 9:586. [PMID: 30542372 PMCID: PMC6278173 DOI: 10.3389/fgene.2018.00586] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/12/2018] [Indexed: 12/21/2022] Open
Abstract
Mutations of a single gene can lead to a major increase in longevity in organisms ranging from yeast and worms to insects and mammals. Discovering these mutations (sometimes referred to as “longevity genes”) led to identification of evolutionarily conserved molecular, cellular, and organismal mechanisms of aging. Studies in mice provided evidence for the important role of growth hormone (GH) signaling in mammalian aging. Mice with mutations or gene deletions leading to GH deficiency or GH resistance have reduced body size and delayed maturation, but are healthier and more resistant to stress, age slower, and live longer than their normal (wild type) siblings. Mutations of the same genes in people can provide remarkable protection from age-related disease, but have no consistent impact on lifespan. Ongoing research indicates that genetic defects in GH signaling are linked to extension of healthspan and lifespan via a variety of interlocking mechanism, including improvements in genome and stem cell maintenance, stress resistance, glucose homeostasis, and thermogenesis, along with reductions in the mechanistic target of rapamycin (mTOR) C1 complex signaling and in chronic low grade inflammation.
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Affiliation(s)
- Andrzej Bartke
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, United States
| | - Nana Quainoo
- Department of Biology, University of Illinois Springfield, Springfield, IL, United States
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Galbarczyk A, Klimek M, Nenko I, Jasienska G. Sons May Be Bad for Maternal Health at Older Age: New Evidence for Costs of Reproduction in Humans. J Gerontol A Biol Sci Med Sci 2018; 74:648-651. [DOI: 10.1093/gerona/gly190] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Indexed: 11/13/2022] Open
Affiliation(s)
- Andrzej Galbarczyk
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Magdalena Klimek
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Ilona Nenko
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Grazyna Jasienska
- Department of Environmental Health, Faculty of Health Sciences, Jagiellonian University Medical College, Krakow, Poland
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Wang X, Salimi S, Deng Z, Perry J, Ryan KA, Li Z, Liu D, Streeten E, Shuldiner AR, Fu M. Evaluation of WISP1 as a candidate gene for bone mineral density in the Old Order Amish. Sci Rep 2018; 8:7141. [PMID: 29739999 PMCID: PMC5940677 DOI: 10.1038/s41598-018-25272-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 04/12/2018] [Indexed: 12/14/2022] Open
Abstract
Wnt1-inducible signaling pathway protein-1 (WISP1) is a novel target of the Wnt pathway for modulating osteogenesis and improving bone strength. However, it is not clear if genetic variants in the WISP1 region are associated with bone mineral density (BMD) in human. The aim of this study is to investigate the role of genetic variation in WISP1 gene as a determinant of BMD in 1,510 Old Order Amish (OOA). We performed regional association analysis of 58 tag variants within 5 kb upstream and downstream to WISP1 with BMD and found 5 variants that were associated with BMD at multiple skeletal sites (P values from 2.89 × 10−6 to 1.62 × 10−2), with some significant associations even after adjustment for multiple comparisons. To replicate these results in an independent dataset, we performed a look-up of BMD associations with these variants in European ancestry subjects from the large GEFOS Consortium and observed the nominal associations of two of these variants with BMD (P values: 0.031 to 0.048). In conclusion, we have demonstrated that genetic variants surrounding WISP1 are associated with BMD at multiple skeletal sites in the OOA, thus influencing osteoporosis risk. These results support a role for the WISP1 gene on influencing variation in BMD.
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Affiliation(s)
- Xing Wang
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Shabnam Salimi
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Zhongliang Deng
- Department of Orthopedic Surgery, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - James Perry
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Kathleen A Ryan
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Zhizhen Li
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Dongfang Liu
- The Department of Endocrinology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Elizabeth Streeten
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Alan R Shuldiner
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Mao Fu
- School of Medicine, Division of Endocrinology, Diabetes and Nutrition, and Program for Personalized and Genomic Medicine, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
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Abstract
OBJECTIVE Maternal age at birth of last child has been associated with maternal longevity. The aim of this study was to determine whether older women with a history of late maternal age at last childbirth had a longer leukocyte telomere length than those with maternal age at last childbirth of 29 years or less. METHODS A nested case control study was conducted using data from the Long Life Family Study. Three hundred eighty-seven women who gave birth to at least one child and lived to the top fifth percentile of their birth cohort, or died before the top fifth percentile of their birth cohort died, but were at least 70 years old, were studied. Logistic regression models using generalized estimating equations were used to determine the association between tertiles of telomere length and maternal age at last childbirth, adjusting for covariates. RESULTS Age at birth of the last child was significantly associated with leukocyte telomere length. Compared with women who gave birth to their last child before the age of 29, women who were past the age of 33 when they had their last child were two to three times more likely to have leukocyte telomere length in the second and third tertiles than in the first tertile. CONCLUSIONS These findings show an association between longer leukocyte telomere length and a later maternal age at birth of last child, suggesting that extended maternal age at last childbirth may be a marker for longevity.
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Reardon DC, Thorp JM. Pregnancy associated death in record linkage studies relative to delivery, termination of pregnancy, and natural losses: A systematic review with a narrative synthesis and meta-analysis. SAGE Open Med 2017; 5:2050312117740490. [PMID: 29163945 PMCID: PMC5692130 DOI: 10.1177/2050312117740490] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 10/09/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES Measures of pregnancy associated deaths provide important guidance for public health initiatives. Record linkage studies have significantly improved identification of deaths associated with childbirth but relatively few have also examined deaths associated with pregnancy loss even though higher rates of maternal death have been associated with the latter. Following PRISMA guidelines we undertook a systematic review of record linkage studies examining the relative mortality risks associated with pregnancy loss to develop a narrative synthesis, a meta-analysis, and to identify research opportunities. METHODS MEDLINE and SCOPUS were searched in July 2015 using combinations of: mortality, maternal death, record linkage, linked records, pregnancy associated mortality, and pregnancy associated death to identify papers using linkage of death certificates to independent records identifying pregnancy outcomes. Additional studies were identified by examining all citations for relevant studies. RESULTS Of 989 studies, 11 studies from three countries reported mortality rates associated with termination of pregnancy, miscarriage or failed pregnancy. Within a year of their pregnancy outcomes, women experiencing a pregnancy loss are over twice as likely to die compared to women giving birth. The heightened risk is apparent within 180 days and remains elevated for many years. There is a dose effect, with exposure to each pregnancy loss associated with increasing risk of death. Higher rates of death from suicide, accidents, homicide and some natural causes, such as circulatory diseases, may be from elevated stress and risk taking behaviors. CONCLUSIONS Both miscarriage and termination of pregnancy are markers for reduced life expectancy. This association should inform research and new public health initiatives including screening and interventions for patients exhibiting known risk factors.
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Affiliation(s)
| | - John M Thorp
- Department of Obstetrics and Gynecology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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19
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van den Berg N, Beekman M, Smith KR, Janssens A, Slagboom PE. Historical demography and longevity genetics: Back to the future. Ageing Res Rev 2017; 38:28-39. [PMID: 28689042 DOI: 10.1016/j.arr.2017.06.005] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/30/2017] [Accepted: 06/30/2017] [Indexed: 11/30/2022]
Abstract
Research into the genetic component of human longevity can provide important insights in mechanisms that may protect against age-related diseases and multi-morbidity. Thus far only a limited number of robust longevity loci have been detected in either candidate or genome wide association studies. One of the issues in these genetic studies is the definition of the trait being either lifespan, including any age at death or longevity, i.e. survival above a diverse series of thresholds. Likewise heritability and segregation research have conflated lifespan with longevity. The heritability of lifespan estimated across most studies has been rather low. Environmental factors have not been sufficiently investigated and the total amount of genetic variance contributing to longevity has not been estimated in sufficiently well-defined and powered studies. Up to now, genetic longevity studies lack the required insights into the nature and size of the genetic component and the optimal strategies for meta-analysis and subject selection for Next Generation Sequencing efforts. Historical demographic data containing deep genealogical information may help in estimating the best definition and heritability for longevity, its transmission patterns in multi-generational datasets and may allow relevant additive and modifying environmental factors such as socio-economic status, geographical background, exposure to environmental effects, birth order, and number of children to be included. In this light historical demographic data may be very useful for identifying lineages in human populations that are worth investigating further by geneticists.
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Affiliation(s)
- Niels van den Berg
- Department of Molecular Epidemiology, Leiden University, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
| | - Marian Beekman
- Department of Molecular Epidemiology, Leiden University, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
| | - Ken Robert Smith
- Department of Family and Consumer Studies, Population Sciences, Huntsman Cancer Institute, University of Utah, 225 S. 1400 E. Rm 228, Salt Lake City, United States.
| | - Angelique Janssens
- Department of Economic, Social, and Demographic History, Radboud University, Erasmusplein 1, 6525 HT Nijmegen, The Netherlands.
| | - Pieternella Eline Slagboom
- Department of Molecular Epidemiology, Leiden University, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.
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20
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Modig K, Talbäck M, Torssander J, Ahlbom A. Payback time? Influence of having children on mortality in old age. J Epidemiol Community Health 2017; 71:424-430. [PMID: 28292784 PMCID: PMC5484032 DOI: 10.1136/jech-2016-207857] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 10/04/2016] [Accepted: 11/15/2016] [Indexed: 11/04/2022]
Abstract
BACKGROUND It is known that parents have lower mortality than childless individuals. Support from adult children to ageing parents may be of importance for parental health and longevity. The aim of this study was to estimate the association between having a child and the risk of death, and to examine whether the association increased at older ages when health starts to deteriorate and the need of support from a family member increases. METHODS In this nationwide study, all men and women (born between 1911 and 1925 and residing in Sweden), as well as their children, were identified in population registers and followed over time. Age-specific death risks were calculated for each calendar year for individuals having at least one child and for individuals without children. Adjusted risk differences and risk ratios were estimated. RESULTS Men and women having at least one child experienced lower death risks than childless men and women. At 60 years of age, the difference in life expectancy was 2 years for men and 1.5 years for women. The absolute differences in death risks increased with parents' age and were somewhat larger for men than for women. The association persisted when the potential confounding effect of having a partner was taken into account. The gender of the child did not matter for the association between parenthood and mortality. CONCLUSIONS Having children is associated with increased longevity, particularly in an absolute sense in old age. That the association increased with parents' age and was somewhat stronger for the non-married may suggest that social support is a possible explanation.
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Affiliation(s)
- K Modig
- Epidemiology unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - M Talbäck
- Epidemiology unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - J Torssander
- Swedish Institute for Social Research, Stockholm University, Stockholm, Sweden
| | - A Ahlbom
- Epidemiology unit, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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21
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Exaptation, serendipity and aging. Mech Ageing Dev 2017; 163:30-35. [PMID: 28089621 DOI: 10.1016/j.mad.2017.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/09/2016] [Accepted: 01/05/2017] [Indexed: 11/23/2022]
Abstract
The paper shows the importance of serendipity and exaptation in selected key moments of ageing research and argue that rationalistic dominant models in scientific research have masked the importance of reverse models of discovery based on serendipity and exaptation. I ask why this is the case and analyze three contributing factors: unprestatability of the functions of technologies, multidimensionality and astronomical complexity of the space over which biological reactions occurs and role of scientific paradigms in channeling research toward incrementalism. Empirical evidence of the limits of the rationalistic models are presented next. I close the paper by discussing the implications for aging research.
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22
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Popkov VA, Silachev DN, Jankauskas SS, Zorova LD, Pevzner IB, Babenko VA, Plotnikov EY, Zorov DB. Molecular and cellular interactions between mother and fetus. Pregnancy as a rejuvenating factor. BIOCHEMISTRY (MOSCOW) 2016; 81:1480-1487. [DOI: 10.1134/s0006297916120099] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Shadyab AH, Gass MLS, Stefanick ML, Waring ME, Macera CA, Gallo LC, Shaffer RA, Jain S, LaCroix AZ. Maternal Age at Childbirth and Parity as Predictors of Longevity Among Women in the United States: The Women's Health Initiative. Am J Public Health 2016; 107:113-119. [PMID: 27854529 DOI: 10.2105/ajph.2016.303503] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To examine associations of maternal age at childbirth and parity with survival to age 90 years (longevity). METHODS We performed a prospective study among a multiethnic cohort of postmenopausal US women in the Women's Health Initiative recruited from 1993 to 1998 and followed through August 29, 2014. We adjusted associations with longevity for demographic, lifestyle, reproductive, and health-related characteristics. RESULTS Among 20 248 women (mean age at baseline, 74.6 years), 10 909 (54%) survived to age 90 years. The odds of longevity were significantly higher in women with later age at first childbirth (adjusted odds ratio = 1.11; 95% confidence interval = 1.02, 1.21 for age 25 years or older vs younger than 25 years; P for trend = .04). Among parous women, the relationship between parity and longevity was significant among White but not Black women. White women with 2 to 4 term pregnancies compared with 1 term pregnancy had higher odds of longevity. CONCLUSIONS Reproductive events were associated with longevity among women. Future studies are needed to determine whether factors such as socioeconomic status explain associations between reproductive events and longevity.
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Affiliation(s)
- Aladdin H Shadyab
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Margery L S Gass
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Marcia L Stefanick
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Molly E Waring
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Caroline A Macera
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Linda C Gallo
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Richard A Shaffer
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Sonia Jain
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
| | - Andrea Z LaCroix
- Aladdin H. Shadyab and Andrea Z. LaCroix are with the Division of Epidemiology, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine, La Jolla. Margery L. S. Gass is with the North American Menopause Society, Emeritus, Cleveland, OH. Marcia L. Stefanick is with the Department of Medicine, Stanford Center for Prevention Research, Stanford University School of Medicine, Stanford, CA. Molly E. Waring is with the departments of Quantitative Health Sciences and Obstetrics and Gynecology, University of Massachusetts Medical School, Worcester. Caroline A. Macera and Richard A. Shaffer are with the Division of Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, CA. Linda C. Gallo is with the Department of Psychology, San Diego State University. Sonia Jain is with the Division of Biostatistics and Bioinformatics, Department of Family Medicine and Public Health, University of California, San Diego School of Medicine
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von Horn K, Depenbusch M, Schultze-Mosgau A, Griesinger G. Fertilität und Lebensdauer. GYNAKOLOGISCHE ENDOKRINOLOGIE 2016. [DOI: 10.1007/s10304-016-0063-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Towner MC, Nenko I, Walton SE. Why do women stop reproducing before menopause? A life-history approach to age at last birth. Philos Trans R Soc Lond B Biol Sci 2016; 371:20150147. [PMID: 27022074 PMCID: PMC4822427 DOI: 10.1098/rstb.2015.0147] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2016] [Indexed: 11/12/2022] Open
Abstract
Evolutionary biologists have long considered menopause to be a fundamental puzzle in understanding human fertility behaviour, as post-menopausal women are no longer physiologically capable of direct reproduction. Menopause typically occurs between 45 and 55 years of age, but across cultures and history, women often stop reproducing many years before menopause. Unlike age at first reproduction or even birth spacing, a woman nearing the end of her reproductive cycle is able to reflect upon the offspring she already has--their numbers and phenotypic qualities, including sexes. This paper reviews demographic data on age at last birth both across and within societies, and also presents a case study of age at last birth in rural Bangladeshi women. In this Bangladeshi sample, age at last birth preceded age at menopause by an average of 11 years, with marked variation around that mean, even during a period of high fertility. Moreover, age at last birth was not strongly related to age at menopause. Our literature review and case study provide evidence that stopping behaviour needs to be more closely examined as an important part of human reproductive strategies and life-history theory. Menopause may be a final marker of permanent reproductive cessation, but it is only one piece of the evolutionary puzzle.
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Affiliation(s)
- Mary C Towner
- Department of Integrative Biology, Oklahoma State University, Stillwater, OK, USA
| | - Ilona Nenko
- Department of Environmental Health, Jagiellonian University Medical College, Krakow, Poland
| | - Savannah E Walton
- Department of Integrative Biology, Oklahoma State University, Stillwater, OK, USA Department of Psychology, University of Tulsa, OK, USA
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26
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Scarabino D, Scacchi R, Pinto A, Corbo RM. Genetic Basis of the Relationship Between Reproduction and Longevity: A Study on Common Variants of Three Genes in Steroid Hormone Metabolism—CYP17, HSD17B1, and COMT. Rejuvenation Res 2015; 18:464-72. [DOI: 10.1089/rej.2015.1665] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Daniela Scarabino
- CNR Institute of Cellular Biology and Neurobiology, Monterotondo Scalo, Rome, Italy
| | - Renato Scacchi
- CNR Institute of Molecular Biology and Pathology, Rome, Italy
| | - Alessandro Pinto
- Experimental Medicine Department, Food Science and Human Nutrition Research Unit, La Sapienza University, Rome, Italy
| | - Rosa Maria Corbo
- CNR Institute of Molecular Biology and Pathology, Rome, Italy
- Department of Biology and Biotechnology, La Sapienza University, Rome, Italy
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27
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Extended maternal age at birth of last child and women's longevity in the Long Life Family Study. Menopause 2015; 22:26-31. [PMID: 24977462 DOI: 10.1097/gme.0000000000000276] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study investigated the association between maternal age at birth of last child and likelihood of survival to advanced age. METHODS This was a nested case-control study using Long Life Family Study data. Three hundred eleven women who survived past the oldest 5th percentile of survival (according to birth cohort-matched life tables) were identified as cases, and 151 women who died at ages younger than the top 5th percentile of survival were identified as controls. A Bayesian mixed-effect logistic regression model was used to estimate the association between maternal age at birth of last child and exceptional longevity among these 462 women. RESULTS We found a significant association for older maternal age, whereby women who had their last child beyond age 33 years had twice the odds for survival to the top 5th percentile of survival for their birth cohorts compared with women who had their last child by age 29 years (age between 33 and 37 y: odds ratio, 2.08; 95% CI, 1.13 to 3.92; older age: odds ratio, 1.92; 95% CI, 1.03 to 3.68). CONCLUSIONS This study supports findings from other studies demonstrating a positive association between older maternal age and greater odds for surviving to an unusually old age.
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28
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Natural fertility and longevity. Fertil Steril 2015; 103:1109-16. [PMID: 25934597 DOI: 10.1016/j.fertnstert.2015.03.030] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 03/23/2015] [Accepted: 03/25/2015] [Indexed: 12/25/2022]
Abstract
Much empirical work suggests an association between fertility patterns and longevity. I review this association, focusing on natural fertility populations and emphasizing the role of both the timing and the intensity of fertility. Overall, it appears that although age at last reproduction routinely correlates with post-reproductive longevity, suggesting a slower rate of senescence among late fertile women, the same is not true for age at first reproduction and parity. I discuss some of the conceptual and methodologic issues, as well as the sources of the biases, that have been a persistent feature of this body of research. I conclude by suggesting avenues of research that could be initiated or pursued in the area.
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Demographic characteristics of Sardinian centenarian genealogies: Preliminary results of the AKeA2 study. DEMOGRAPHIC RESEARCH 2015. [DOI: 10.4054/demres.2015.32.37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Fire M, Elovici Y. Data Mining of Online Genealogy Datasets for Revealing Lifespan Patterns in Human Population. ACM T INTEL SYST TEC 2015. [DOI: 10.1145/2700464] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Online genealogy datasets contain extensive information about millions of people and their past and present family connections. This vast amount of data can help identify various patterns in the human population. In this study, we present methods and algorithms that can assist in identifying variations in lifespan distributions of the human population in the past centuries, in detecting social and genetic features that correlate with the human lifespan, and in constructing predictive models of human lifespan based on various features that can easily be extracted from genealogy datasets.
We have evaluated the presented methods and algorithms on a large online genealogy dataset with over a million profiles and over 9 million connections, all of which were collected from the WikiTree website. Our findings indicate that significant but small positive correlations exist between the parents’ lifespan and their children’s lifespan. Additionally, we found slightly higher and significant correlations between the lifespans of spouses. We also discovered a very small positive and significant correlation between longevity and reproductive success in males, and a small and significant negative correlation between longevity and reproductive success in females. Moreover, our predictive models presented results with a Mean Absolute Error as low as 13.18 in predicting the lifespans of individuals who outlived the age of 10, and our classification models presented better than random classification results in predicting which people who outlive the age of 50 will also outlive the age of 80.
We believe that this study will be the first of many studies to utilize the wealth of data on human populations, existing in online genealogy datasets, to better understand factors that influence the human lifespan. Understanding these factors can assist scientists in providing solutions for successful aging.
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Affiliation(s)
- Michael Fire
- Telekom Innovation Laboratories at Ben-Gurion University of the Negev, Israel
| | - Yuval Elovici
- Telekom Innovation Laboratories at Ben-Gurion University of the Negev, Israel
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Ehrlich S. Effect of fertility and infertility on longevity. Fertil Steril 2015; 103:1129-35. [DOI: 10.1016/j.fertnstert.2015.03.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2015] [Revised: 03/23/2015] [Accepted: 03/23/2015] [Indexed: 10/23/2022]
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Falick Michaeli T, Bergman Y, Gielchinsky Y. Rejuvenating effect of pregnancy on the mother. Fertil Steril 2015; 103:1125-8. [PMID: 25813291 DOI: 10.1016/j.fertnstert.2015.02.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 02/23/2015] [Accepted: 02/23/2015] [Indexed: 01/10/2023]
Abstract
Aging is associated with reduced tissue regenerative capacity. In recent years, studies in mice have shown that transfusion of blood from young animals to old ones can reverse some aging effects and increase regenerative potential similar to that seen in young animals. Because pregnancy is a unique biological model of a partially shared blood system, we have speculated that pregnancy would have a rejuvenating effect on the mother. Recent studies support this idea. In this review, we will summarize the current knowledge of the rejuvenating effect of pregnancy on the mother.
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Affiliation(s)
- Tal Falick Michaeli
- Rubin Chair in Medical Science, Department of Developmental Biology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Yehudit Bergman
- Rubin Chair in Medical Science, Department of Developmental Biology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, Israel
| | - Yuval Gielchinsky
- Rubin Chair in Medical Science, Department of Developmental Biology and Cancer Research, IMRIC, Hebrew University-Hadassah Medical School, Jerusalem, Israel; Department of Obstetrics and Gynecology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel.
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Extended fertility and longevity: the genetic and epigenetic link. Fertil Steril 2015; 103:1117-24. [PMID: 25796320 DOI: 10.1016/j.fertnstert.2015.02.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/03/2015] [Accepted: 02/05/2015] [Indexed: 11/22/2022]
Abstract
Many women now choose to develop their careers before having children. Thus, it is becoming increasingly important to assess a woman's potential for extended fertility and to understand the health consequences of having children at a late age. In particular, there is a striking positive correlation between extended fertility and longevity in women, which poses important implications for medicine, biology, and evolution. In this article we review the diverse epidemiologic evidence for the link between fertility potential, age of menopause, and women's lifespan. Then we discuss the recent advances using genomic technology to better understand biological mechanisms driving this association. At the genetic level, there are polymorphisms that may be driving both extended fertility and longevity. At the cellular and molecular levels, changes in the genome (both nuclear and mitochondrial), epigenome, and transcriptome during oocyte aging have important implications for fertility. By synthesizing results from diverse domains, we hope to provide a genomic-era conceptual framework in which this important connection can be investigated and understood.
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Kengeri SS, Maras AH, Suckow CL, Chiang EC, Waters DJ. Exceptional longevity in female Rottweiler dogs is not encumbered by investment in reproduction. AGE (DORDRECHT, NETHERLANDS) 2013; 35:2503-2513. [PMID: 23584889 PMCID: PMC3825016 DOI: 10.1007/s11357-013-9529-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 03/18/2013] [Indexed: 06/02/2023]
Abstract
To better understand the potential trade-off between female reproductive investment and longevity in an emerging model of human healthspan, we studied pet dogs to determine whether intensity of reproduction (total number of offspring) encumbered the likelihood of exceptional longevity. This hypothesis was tested by collecting and analyzing lifetime medical histories, including complete reproductive histories, for a cohort of canine "centenarians"--exceptionally long-lived Rottweiler dogs that lived more than 30% longer than the breed's average life expectancy. Reproductive intensity (number of litters, total number of pups) and tempo of reproductive effort (age at first reproduction, mean interbirth interval, age at last reproduction) in 78 exceptionally long-lived female Rottweilers (>13 years old) were compared to a cohort of 97 female Rottweilers that had usual longevity (age at death 8.0-10.75 years). We found no evidence that a mother's physiological investment in offspring was associated with disadvantaged longevity. Instead, similar to some studies in women, our data showed an inverted U-shaped trend, suggesting that moderate investment in reproduction may promote longevity. Late reproductive success, a much-studied surrogate of maternal fitness in women, was not a strong predictor of longevity in this canine cohort. Instead, independent of reproductive investment, the duration of lifetime ovary exposure was significantly associated with highly successful aging. Our results from exceptionally long-lived pet dogs provide rationale for further investigative efforts to understand the ovary-sensitive biological factors that promote healthy longevity in women and pet dogs.
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Affiliation(s)
- S. S. Kengeri
- />Center for Exceptional Longevity Studies, Gerald P. Murphy Cancer Foundation, West Lafayette, IN USA
| | - A. H. Maras
- />Center for Exceptional Longevity Studies, Gerald P. Murphy Cancer Foundation, West Lafayette, IN USA
| | - C. L. Suckow
- />Center for Exceptional Longevity Studies, Gerald P. Murphy Cancer Foundation, West Lafayette, IN USA
| | - E. C. Chiang
- />Center for Exceptional Longevity Studies, Gerald P. Murphy Cancer Foundation, West Lafayette, IN USA
- />Center on Aging and the Life Course, Purdue University, West Lafayette, IN USA
| | - D. J. Waters
- />Center for Exceptional Longevity Studies, Gerald P. Murphy Cancer Foundation, West Lafayette, IN USA
- />Center on Aging and the Life Course, Purdue University, West Lafayette, IN USA
- />Department of Veterinary Clinical Sciences, Purdue University, West Lafayette, IN USA
- />Center for Exceptional Longevity Studies, Gerald P. Murphy Cancer Foundation, 3000 Kent Avenue, Suite E2-100, West Lafayette, IN 47906 USA
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Lehtovaara A, Schielzeth H, Flis I, Friberg U. Heritability of Life Span Is Largely Sex Limited in Drosophila. Am Nat 2013; 182:653-65. [DOI: 10.1086/673296] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wang X, Byars SG, Stearns SC. Genetic links between post-reproductive lifespan and family size in Framingham. Evol Med Public Health 2013; 2013:241-53. [PMID: 24481203 PMCID: PMC3868361 DOI: 10.1093/emph/eot013] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 06/17/2013] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Is there a trade-off between children ever born (CEB) and post-reproductive lifespan in humans? Here, we report a comprehensive analysis of reproductive trade-offs in the Framingham Heart Study (FHS) dataset using phenotypic and genotypic correlations and a genome-wide association study (GWAS) to look for single-nucleotide polymorphisms (SNPs) that are related to the association between CEB and lifespan. METHODOLOGY We calculated the phenotypic and genetic correlations of lifespan with CEB for men and women in the Framingham dataset, and then performed a GWAS to search for SNPs that might affect the relationship between post-reproductive lifespan and CEB. RESULTS We found significant negative phenotypic correlations between CEB and lifespan in both women (rP = -0.133, P < 0.001) and men (rP = -0. 079, P = 0.036). The genetic correlation was large, highly significant and strongly negative in women (rG = -0.877, P = 0.009) in a model without covariates, but not in men (P = 0.777). The GWAS identified five SNPs associated with the relationship between CEB and post-reproductive lifespan in women; some are near genes that have been linked to cancer. None were identified in men. CONCLUSIONS AND IMPLICATIONS We identified several SNPs for which the relationship between CEB and post-reproductive lifespan differs by genotype in women in the FHS who were born between 1889 and 1958. That result was not robust to changes in the sample. Further studies on larger samples are needed to validate the antagonistic pleiotropy of these genes.
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Affiliation(s)
- Xiaofei Wang
- Department of Statistics, Yale University, New Haven, CT 06520-8102, USA, Department of Biology, Copenhagen University, Universitetsparken 15, 2100 Copenhagen, Denmark and Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520-8102, USA
| | - Sean G. Byars
- Department of Statistics, Yale University, New Haven, CT 06520-8102, USA, Department of Biology, Copenhagen University, Universitetsparken 15, 2100 Copenhagen, Denmark and Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520-8102, USA
| | - Stephen C. Stearns
- Department of Statistics, Yale University, New Haven, CT 06520-8102, USA, Department of Biology, Copenhagen University, Universitetsparken 15, 2100 Copenhagen, Denmark and Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520-8102, USA
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38
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Chereji E, Gatz M, Pedersen NL, Prescott CA. Reexamining the association between fertility and longevity: testing the disposable soma theory in a modern human sample of twins. J Gerontol A Biol Sci Med Sci 2012; 68:499-509. [PMID: 23213027 DOI: 10.1093/gerona/gls218] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The disposable soma theory proposes a trade-off between fertility and longevity but existing findings on this association have been mixed. This study used data from 15,622 twins born between 1901 and 1925 ascertained from the population-based Swedish Twin Registry to test the child-longevity association and whether it is accounted for by individual-level factors or by genetic and environmental factors shared by family members. Based on survival analysis, both women and men with children had significantly longer survival relative to the childless, with a slightly higher relative advantage in men. Adjustments for demographic factors and cotwin fertility did not mediate the parenting-survival association, indicating that this association is attributable to individual-level factors associated with fertility rather than family-level environmental or genetic factors shared by cotwins. These results, derived from a large, population-based sample, are inconsistent with the disposable soma theory as applied to modern human populations.
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Affiliation(s)
- Elizabeth Chereji
- Department of Psychology, University of Southern California, Los Angeles, CA 90089-1061, USA.
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39
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Dior UP, Hochner H, Friedlander Y, Calderon-Margalit R, Jaffe D, Burger A, Avgil M, Manor O, Elchalal U. Association between number of children and mortality of mothers: results of a 37-year follow-up study. Ann Epidemiol 2012. [PMID: 23176782 DOI: 10.1016/j.annepidem.2012.10.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE To examine the association between parity and long-term, all-cause mortality and mortality owing to specific causes in women. METHODS This prospective population-based study included 40,454 mothers who gave birth in Western Jerusalem, Israel, to 125,842 children and were followed for an average of 37 years after the birth of their first child. Cox proportional hazards models were used to evaluate long-term total and specific-cause mortality of women by their parity. RESULTS We found a U-shaped relationship between the number of offspring and risk of all-cause mortality in mothers. After adjustment for sociodemographic characteristics and maternal health and obstetric conditions, higher mortality rates were observed for mothers of 1 child (hazard ratio [HR], 1.18; 95% confidence interval [CI], 1.04-1.4), mothers of 5 to 9 children (HR, 1.21; 95% CI, 1.09-1.33), and mothers of 10 or more children (HR, 1.49; 95% CI, 1.12-1.99) compared with mothers of 2 to 4 children. Mortality risk from specific causes including coronary disease, circulatory disease, and cancer were increased for multiparous women. CONCLUSIONS In this long-term follow-up study, there was an association between number of children and mortality risk for mothers. These findings suggest that maternal pregnancies and postnatal characteristics as reflected by number of children may have consequences for long-term maternal health.
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Affiliation(s)
- Uri P Dior
- Braun School of Public Health, Hebrew University-Hadassah Medical Center, Jerusalem, Israel.
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40
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Nenko I, Jasienska G. First birth interval, an indicator of energetic status, is a predictor of lifetime reproductive strategy. Am J Hum Biol 2012; 25:78-82. [PMID: 23132645 DOI: 10.1002/ajhb.22344] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Revised: 10/08/2012] [Accepted: 10/10/2012] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVES Women should differ in their reproductive strategies according to their nutritional status. We tested a hypothesis that women who have a good nutritional status early in life, as indicated by a shorter waiting time to the first birth (first birth interval, FBI), are able to afford higher costs of reproduction than women who have worse nutritional condition. METHODS We collected data on 377 women who got married between the years 1782 and 1882 in a natural fertility population in rural Poland. The study group was divided into tertiles based on the length of FBI. RESULTS Women with the shortest FBI had a higher number of children (P = 0.005), higher number of sons (P = 0.01), and shorter mean interbirth intervals (P = 0.06). Women who had ever given birth to twins had shorter FBI than women of singletons (20.1 and 26.1 months, respectively; P = 0.049). Furthermore, women with a shorter FBI, despite having higher costs of reproduction, did not have a different lifespan than women with a longer FBI. CONCLUSIONS Our results suggest that women who were in better energetic condition (shorter length of FBI), achieved higher reproductive success without reduction in lifespan. FBI reflects interindividual variation, which may result from variation in nutritional status early in life and thus may be a good predictor of subsequent reproductive strategy. We propose to use FBI as an indicator of women's nutritional status in studies of historical populations, especially when information about social status is not available.
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Affiliation(s)
- Ilona Nenko
- Department of Environmental Health, Institute of Public Health, Jagiellonian University Medical College, Grzegorzecka 20, Krakow 31-351, Poland.
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41
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Mitteldorf JJ. Demographic evidence for adaptive theories of aging. BIOCHEMISTRY. BIOKHIMIIA 2012; 77:726-8. [PMID: 22817535 DOI: 10.1134/s0006297912070048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Pleiotropic theories for the evolutionary origins of senescence have been ascendant for forty years (see, for example, G. Williams (1957) Evolution, 11, 398-411; T. Kirkwood (1977) Nature, 270, 301-304), and it is not surprising that interpreters of demographic data seek to frame their results in this context. But some of that evidence finds a much more natural explanation in terms of adaptive aging. Here we re-interpret the 1997 results of the Centenarian Study in Boston, which found in their sample of centenarian women an excess of late childbearing. The finding was originally interpreted as a selection effect: a metabolic link between late menopause and longevity. But we demonstrate that this interpretation is statistically strained, and that the data in fact indicate a causal link: bearing a child late in life induces a metabolic response that promotes longevity. This conclusion directly contradicts some pleiotropic theories of aging that postulate a "cost of reproduction", and it supports theories of aging as an adaptive genetic program.
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Affiliation(s)
- J J Mitteldorf
- Department of Biology, University of Vermont, Burlington, VT 05405, USA.
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42
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Abstract
A number of leading theories of aging, namely The Antagonistic Pleiotropy Theory (Williams, 1957), The Disposable Soma Theory (Kirkwood, 1977) and most recently The Reproductive-Cell Cycle Theory (Bowen and Atwood, 2004, 2010) suggest a tradeoff between longevity and reproduction. While there has been an abundance of data linking longevity with reduced fertility in lower life forms, human data have been conflicting. We assessed this tradeoff in a cohort of genetically and socially homogenous Ashkenazi Jewish centenarians (average age ~100 years). As compared with an Ashkenazi cohort without exceptional longevity, our centenarians had fewer children (2.01 vs 2.53, p<0.0001), were older at first childbirth (28.0 vs 25.6, p<0.0001), and at last childbirth (32.4 vs 30.3, p<0.0001). The smaller number of children was observed for male and female centenarians alike. The lower number of children in both genders together with the pattern of delayed reproductive maturity is suggestive of constitutional factors that might enhance human life span at the expense of reduced reproductive ability.
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Iliadi KG, Knight D, Boulianne GL. Healthy aging - insights from Drosophila. Front Physiol 2012; 3:106. [PMID: 22529821 PMCID: PMC3328947 DOI: 10.3389/fphys.2012.00106] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Accepted: 04/03/2012] [Indexed: 11/13/2022] Open
Abstract
Human life expectancy has nearly doubled in the past century due, in part, to social and economic development, and a wide range of new medical technologies and treatments. As the number of elderly increase it becomes of vital importance to understand what factors contribute to healthy aging. Human longevity is a complex process that is affected by both environmental and genetic factors and interactions between them. Unfortunately, it is currently difficult to identify the role of genetic components in human longevity. In contrast, model organisms such as C. elegans, Drosophila, and rodents have facilitated the search for specific genes that affect lifespan. Experimental evidence obtained from studies in model organisms suggests that mutations in a single gene may increase longevity and delay the onset of age-related symptoms including motor impairments, sexual and reproductive and immune dysfunction, cardiovascular disease, and cognitive decline. Furthermore, the high degree of conservation between diverse species in the genes and pathways that regulate longevity suggests that work in model organisms can both expand our theoretical knowledge of aging and perhaps provide new therapeutic targets for the treatment of age-related disorders.
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Affiliation(s)
- Konstantin G Iliadi
- Program in Developmental and Stem Cell Biology, The Hospital for Sick Children Toronto, ON, Canada
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Schure V, Voigt M, Schild RL, Hesse V, Carstensen M, Schneider KTM, Straube S. Perinatal Risks in "Late Motherhood" Defined Based On Parity and Preterm Birth Rate - an Analysis of the German Perinatal Survey (20th Communication). Geburtshilfe Frauenheilkd 2012; 72:49-55. [PMID: 25253904 DOI: 10.1055/s-0031-1280407] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2011] [Revised: 05/24/2011] [Accepted: 11/04/2011] [Indexed: 10/14/2022] Open
Abstract
Aim: "Late motherhood" is associated with greater perinatal risks but the term lacks precise definition. We present an approach to determine what "late motherhood" associated with "high risk" is, based on parity and preterm birth rate. Materials and Methods: Using data from the German Perinatal Survey of 1998-2000 we analysed preterm birth rates in women with zero, one, or two previous live births. We compared groups of "late" mothers (with high preterm birth rates) with "control" groups of younger women (with relatively low preterm birth rates). Data of 208 342 women were analysed. For women with zero (one; two) previous live births, the "control" group included women aged 22-26 (27-31; 29-33) years. Women in the "late motherhood" group were aged > 33 (> 35; > 38) years. Results: The "late motherhood" groups defined in this way were also at higher risk of adverse perinatal events other than preterm birth. For women with zero (one; two) previous live births, normal cephalic presentation occurred in 89 % (92.7 %; 93.3 %) in the "control" group, but only in 84.5 % (90 %; 90.4 %) in the "late motherhood" group. The mode of delivery was spontaneous or at most requiring manual help in 71.3 % (83.4 %; 85.8 %) in the "control" group, but only in 51.4 % (72.2 %; 76.4 %) in the "late motherhood" group. Five-minute APGAR scores were likewise worse for neonates of "late" mothers and the proportion with a birth weight ≤ 2499 g was greater. Conclusion: "Late motherhood" that is associated with greater perinatal risks can be defined based on parity and preterm birth rate.
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Affiliation(s)
- V Schure
- Department of Obstetrics and Gynaecology, Diakonische Dienste Hannover, Hannover
| | - M Voigt
- German Center for Growth, Development, and Health Encouragement during Childhood and Youth, Berlin
| | - R L Schild
- Department of Obstetrics and Gynaecology, Diakonische Dienste Hannover, Hannover
| | - V Hesse
- German Center for Growth, Development, and Health Encouragement during Childhood and Youth, Berlin
| | | | - K T M Schneider
- Section of Perinatal Medicine, Department of Obstetrics and Gynaecology, Technical University of Munich, Munich
| | - S Straube
- Department of Occupational, Social and Environmental Medicine, University Medical Center Göttingen, Göttingen
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Kuningas M, Altmäe S, Uitterlinden AG, Hofman A, van Duijn CM, Tiemeier H. The relationship between fertility and lifespan in humans. AGE (DORDRECHT, NETHERLANDS) 2011; 33:615-622. [PMID: 21222045 PMCID: PMC3220400 DOI: 10.1007/s11357-010-9202-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 12/13/2010] [Indexed: 05/30/2023]
Abstract
Evolutionary theories of aging predict a trade-off between fertility and lifespan, where increased lifespan comes at the cost of reduced fertility. Support for this prediction has been obtained from various sources. However, which genes underlie this relationship is unknown. To assess it, we first analyzed the association of fertility with age at menarche and menopause, and with mortality in 3,575 married female participants of the Rotterdam Study. In addition, we conducted a candidate gene study where 1,664 single nucleotide polymorphisms (SNPs) in 25 candidate genes were analyzed in relation to number of children as a measure of fertility. SNPs that associated with fertility were analyzed for association with mortality. We observed no associations between fertility and age at menarche (p = 0.38) and menopause (p = 0.07). In contrast, fertility was associated with mortality. Women with two to three children had significantly lower mortality (hazard ratio (HR), 0.82; 95% confidence interval (95% CI), 0.69-0.97) compared to women with no children. No such benefit was observed for women with four or more children, who had a similar mortality risk (HR, 0.93; 95% CI, 0.76-1.13) as women with no children. The analysis of candidate genes revealed four genes that influence fertility after correction for multiple testing: CGB/LHB gene cluster (p = 0.0036), FSHR (p = 0.023), FST (p = 0.023), and INHBA (p = 0.021). However, none of the independent SNPs in these genes predicted mortality. In conclusion, women who bear two to three children live longer than those who bear none or many children, but this relationship was not mediated by the candidate genes analyzed in this study.
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Affiliation(s)
- Maris Kuningas
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.
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46
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Hank K. Childbearing history, later-life health, and mortality in Germany. Population Studies 2010; 64:275-91. [DOI: 10.1080/00324728.2010.506243] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Affiliation(s)
- David A. Cesarini
- Department of Economics, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Erik Lindqvist
- Research Institute of Industrial Economics, Stockholm, Sweden
| | - Björn Wallace
- Department of Economics, Stockholm School of Economics, Stockholm, Sweden
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Gögele M, Pattaro C, Fuchsberger C, Minelli C, Pramstaller PP, Wjst M. Heritability analysis of life span in a semi-isolated population followed across four centuries reveals the presence of pleiotropy between life span and reproduction. J Gerontol A Biol Sci Med Sci 2010; 66:26-37. [PMID: 20884848 DOI: 10.1093/gerona/glq163] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Although genetic factors are known to influence the human aging process, the proportion of life span and longevity variation explained by them is still controversial. We evaluated the genetic contribution to life span using historical data from three Alpine communities in South Tyrol, Italy. We estimated the heritability of life span and survival to old age (longevity), and we assessed the hypothesis of a common genetic background between life span and reproduction. The heritability of life span was 0.15 (SE = 0.02), whereas the heritability of longevity increased from 0.20 to 0.35 as the longevity threshold increased. Heritability estimates were little influenced by shared environment, most likely due to the homogeneity of lifestyle and environmental factors in our study population. Life span showed both positive association and genetic correlation with reproductive history factors. Our study demonstrates a general low inheritance of human life span, but which increases substantially when considering long-living individuals, and a common genetic background of life span and reproduction, in agreement with evolutionary theories of aging.
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Affiliation(s)
- Martin Gögele
- Institute of Genetic Medicine, European Academy Bozen/Bolzano Research, Viale Druso/Drususallee, 1 39100 Bolzano/Bozen, Italy.
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Helle S, Lummaa V, Jokela J. On the number of sons born and shorter lifespan in historical Sami mothers. Proc Biol Sci 2010; 277:2909-11; discussion 2913-4. [PMID: 20554542 DOI: 10.1098/rspb.2009.2114] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Samuli Helle
- Section of Ecology, Department of Biology, University of Turku, FIN-20014 Turku, Finland.
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The CFTR Met 470 allele is associated with lower birth rates in fertile men from a population isolate. PLoS Genet 2010; 6:e1000974. [PMID: 20532200 PMCID: PMC2880556 DOI: 10.1371/journal.pgen.1000974] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Accepted: 05/04/2010] [Indexed: 11/30/2022] Open
Abstract
Although little is known about the role of the cystic fibrosis transmembrane regulator (CFTR) gene in reproductive physiology, numerous variants in this gene have been implicated in etiology of male infertility due to congenital bilateral absence of the vas deferens (CBAVD). Here, we studied the fertility effects of three CBAVD–associated CFTR polymorphisms, the (TG)m and polyT repeat polymorphisms in intron 8 and Met470Val in exon 10, in healthy men of European descent. Homozygosity for the Met470 allele was associated with lower birth rates, defined as the number of births per year of marriage (P = 0.0029). The Met470Val locus explained 4.36% of the phenotypic variance in birth rate, and men homozygous for the Met470 allele had 0.56 fewer children on average compared to Val470 carrier men. The derived Val470 allele occurs at high frequencies in non-African populations (allele frequency = 0.51 in HapMap CEU), whereas it is very rare in African population (Fst = 0.43 between HapMap CEU and YRI). In addition, haplotypes bearing Val470 show a lack of genetic diversity and are thus longer than haplotypes bearing Met470 (measured by an integrated haplotype score [iHS] of −1.93 in HapMap CEU). The fraction of SNPs in the HapMap Phase2 data set with more extreme Fst and iHS measures is 0.003, consistent with a selective sweep outside of Africa. The fertility advantage conferred by Val470 relative to Met470 may provide a selective mechanism for these population genetic observations. Cystic fibrosis (CF) is the most common lethal recessive disorder in European-derived populations and is characterized by clinical heterogeneity that involves multiple organ systems. Over 1,600 disease-causing mutations have been identified in the cystic fibrosis transmembrane regulator (CFTR) gene, but our understanding of genotype–phenotype correlations is incomplete. Male infertility is a common feature in CF patients; but, curiously, CF–causing mutations are also found in infertile men who do not exhibit any other CF–related complications. In addition, three common polymorphisms in CFTR have been associated with infertility in otherwise healthy men. We studied these three polymorphisms in fertile men and show that one, called Met470Val, is associated with variation in male fertility and shows a signature of positive selection. We suggest that the Val470 allele has risen to high frequencies in European populations due a fertility advantage but that other genetic and, possibly, environmental factors have tempered the magnitude of these effects during human evolution.
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