Journal articles: 'Ecology of aging'

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Maddox, George L. "THE ECOLOGY OF AGING WELL." Gerontologist 44, no. 4 (2004): 565–67. http://dx.doi.org/10.1093/geront/44.4.565.

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Stevenson, Joan C. "Ecology of aging. Human ecology, special issue no. 8." American Journal of Human Biology 15, no. 6 (2003): 838–39. http://dx.doi.org/10.1002/ajhb.10208.

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Manton, Kenneth G. "Ecology of aging. Human ecology, special issue no. 8." American Journal of Human Biology 13, no. 5 (2001): 702–3. http://dx.doi.org/10.1002/ajhb.1110.

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Bernardin-Haldemann, Verena. "Ecology and Aging: A Critical Review." Canadian Journal on Aging / La Revue canadienne du vieillissement 7, no. 4 (1988): 458–71. http://dx.doi.org/10.1017/s0714980800014951.

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AbstractFor the past two decades the issue of housing for the aged has caught the attention of many in the private as well as in the public sectors, and attempts have been made to improve the situation. If the problem persists today, gerontologists, among others, should be called to account, since they were instrumental in the formulation of many of the interventions. The problem has been approached generally in terms of adaptation to aging and adaptation to the environment. The ecological models currently used agree that happiness can be found at different states of equilibrium between the person and the environment and that the elderly arrive at this state of equilibrium through a special “docility” towards the environment; a “docility” which would be linked to aging. However, this docility would appear to be historically and socially contingent rather than being “natural”. It is thus important to explain the social production of old age and the docility which is tied to it.

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Stewart, H., A. Mahmood, S. Davidson, and J. Kaur. "URBAN ECOLOGY, CLIMATE CHANGE, AND AGING." Innovation in Aging 2, suppl_1 (2018): 11. http://dx.doi.org/10.1093/geroni/igy023.037.

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Sonnen, Joshua A. "Ecology of the Aging Human Brain." Archives of Neurology 68, no. 8 (2011): 1049. http://dx.doi.org/10.1001/archneurol.2011.157.

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Irwansyah, Irwansyah. "Communication Ecology Model of Successful Aging in Indonesian Context." Geriatrics 8, no. 1 (2022): 3. http://dx.doi.org/10.3390/geriatrics8010003.

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The communication ecology model of successful aging (CEMSA) as a part of aging studies from a communication perspective was replicated in the Indonesian context. The CEMSA provided a specific perspective from communication scholars about the successful aging process. The study of CEMSA has grown significantly to demonstrate the importance of the interactive-communication process to propagate and enhance aging studies. However, there has been no specific aging study from a communication perspective, especially from communication scholars in the Indonesian context. This study applied all concepts, variables, measurements, and analyses from the replicated study. The result showed that seven domains of communication about aging may be relevant to predict successful aging from a negative effect and positive effect, and efficacy toward aging. The model showed that the uncertainty and combination of a negative and positive effect in seven domains of communication about aging could construct the efficacy and success of the aging process. The model with seven domains of communication about aging could be proved while the data were gathered not by self-report.

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Raubenheimer, David, Stephen Simpson, and David Le Couteur. "Nutritional Ecology, Nutritional Geometry, and Aging Research." Innovation in Aging 4, Supplement_1 (2020): 846. http://dx.doi.org/10.1093/geroni/igaa057.3102.

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Abstract Substantial advances have been made in understanding both evolutionary and mechanistic aspects of biological ageing, but the two areas remain poorly integrated. I suggest that a greater emphasis on ecology can help to integrate evolutionary and mechanistic research on ageing, by providing insight into the interface between biological mechanisms and the environments in which they evolved. Among the most salient aspects of the environment relevant to ageing is nutrition. And yet in the bulk of ageing research nutrition is coarsely represented as dietary restriction or caloric restriction, without consideration for which components of the diet or which energetic substrates are driving the observed effects. I show how a method developed in nutritional ecology, called the nutritional geometry framework, can help to understand the nutritional interactions of animals with their environments, by explicitly distinguishing the roles of calories, individual nutrients and nutrient balance. Part of a symposium sponsored by the Nutrition Interest Group.

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Raubenheimer, David, Stephen J. Simpson, David G. Le Couteur, Samantha M. Solon-Biet, and Sean C. P. Coogan. "Nutritional ecology and the evolution of aging." Experimental Gerontology 86 (December 2016): 50–61. http://dx.doi.org/10.1016/j.exger.2016.04.007.

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Parrott, Benjamin B., and Emily M. Bertucci. "Epigenetic Aging Clocks in Ecology and Evolution." Trends in Ecology & Evolution 34, no. 9 (2019): 767–70. http://dx.doi.org/10.1016/j.tree.2019.06.008.

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Castro, Vanessa L., and Derek M. Isaacowitz. "Aging and the Social Ecology of Everyday Interpersonal Perception: What is Perceived, in Whom, and Where?" Journals of Gerontology: Series B 74, no. 6 (2018): 988–98. http://dx.doi.org/10.1093/geronb/gbx159.

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Abstract Objectives Despite a proliferation of research in interpersonal perception and aging, no research has identified the nature of the social and emotional perceptions made by aging individuals in everyday life. In this study, we aimed to identify the social ecological features that characterize everyday interpersonal perception across the adult lifespan. Method Three studies were conducted. Study 1 identified and compared the targets and locations of young, middle-age, and older adults’ everyday interpersonal perceptions; these perceptions were categorized into types in Study 2. Study 3 applied these categorizations to identify and compare the social ecology surrounding aging individuals’ interpersonal perceptions. Results Everyday interpersonal perceptions were directed toward familiar others and occurred in familiar locations, although the specific familiar targets and locations sometimes varied significantly with age. However, the types of perceptions made in everyday life did not vary significantly between age groups. Discussion Aging individuals make similar types of interpersonal judgments, but the targets and locations of these judgments may change with age. Future studies on interpersonal perception and aging will need to account for these features of the aging individual’s social ecology to provide an accurate assessment of the aging process.

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Fowler, Craig, Jessica Gasiorek, and Howard Giles. "The Role of Communication in Aging Well: Introducing the Communicative Ecology Model of Successful Aging." Communication Monographs 82, no. 4 (2015): 431–57. http://dx.doi.org/10.1080/03637751.2015.1024701.

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Bernhold, Quinten S., and Howard Giles. "Older Adults’ Recalled Memorable Messages about Aging and Their Associations with Successful Aging." Human Communication Research 45, no. 4 (2019): 474–507. http://dx.doi.org/10.1093/hcr/hqz011.

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Abstract Using the Communicative Ecology Model of Successful Aging (CEMSA), this study examined how one’s own age-related communication and memorable message characteristics indirectly predict successful aging, via aging efficacy. Older adults with higher dispositional hope recalled memorable messages as (a) higher in positivity, (b) higher in efficacy, and (c) more likely to contain a theme of aging not being important or being a subjective state that can be overcome with the right mindset. Older adults were classified as engaged, bantering, or disengaged agers, based on their own age-related communication. Uniquely for CEMSA’s development and the blended role of hope theory within it, memorable message efficacy indirectly predicted greater successful aging, via heightened aging efficacy.

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Bernhold, Quinten S. "Older Parents’ and Middle-Aged Children’s Communication as Predictors of Children’s Successful Aging." Journal of Language and Social Psychology 38, no. 3 (2018): 305–28. http://dx.doi.org/10.1177/0261927x18815929.

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The communicative ecology model of successful aging (CEMSA) examines how people’s language and communication surrounding the aging process (e.g., making age-related excuses) predicts successful aging. Using the CEMSA, this study examined how middle-aged U.S. American children’s and their parents’ age-related communication predicts children’s subjective perceptions of their own successful aging, via children’s aging efficacy. Three communication profiles emerged for children and their parents, namely engaged, bantering, and disengaged agers. Path analysis revealed that parents’ age-related communication predicted children’s successful aging, via children’s aging efficacy. Relative to children with disengaged parents, children with bantering parents were more likely to be efficacious with respect to their aging, which in turn positively predicted successful aging. The language and communication people observe from older family members may be consequential in shaping their aging trajectories for the better or worse.

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Werczberger, Elia. "Chapter 9. Aging and the Demographic Ecology of Urban Areas." Journal of Housing For the Elderly 12, no. 1-2 (1997): 125–45. http://dx.doi.org/10.1300/j081v12n01_09.

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Gory, Mark La, Russell Ward, and Susan Sherman. "The Ecology of Aging: Neighborhood Satisfaction in an Older Population." Sociological Quarterly 26, no. 3 (1985): 405–18. http://dx.doi.org/10.1111/j.1533-8525.1985.tb00235.x.

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Sonawane, Nilima V. "Ageing Population and Healthy Aging Framework." Nursing Journal of India CIV, no. 02 (2013): 57–59. http://dx.doi.org/10.48029/nji.2013.civ201.

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DeGregori, James, Catherine Pham-Danis, Andrii I. Rozhok, et al. "Abstract IA012: Aging, tissue ecology, and the evolution of cancer within us." Cancer Research 82, no. 10_Supplement (2022): IA012. http://dx.doi.org/10.1158/1538-7445.evodyn22-ia012.

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Abstract Why do we get cancer? Why is cancer highly associated with old age? Of course, aging is associated with the accumulation of more mutations, and some of these mutations can contribute to cancer phenotypes. But we now understand that carcinogenesis is much more complex than originally appreciated. In particular, there are tissue environmental forces that both impede and promote cancer evolution. Just as organismal evolution is known to be driven by environmental changes, cellular (somatic) evolution in our bodies is similarly driven by changes in tissue environments, whether caused by the normal process of aging, by lifestyle choices or by extrinsic exposures. Environmental change promotes selection for new phenotypes that are adaptive to the new context. In our tissues, aging or insult-driven alterations in tissues drives selection for adaptive mutations, and some of these mutations can confer malignant phenotypes. We have been using mouse models of cancer initiation, mathematical models of cellular evolution, and analyses of human tissue samples to better understand the evolutionary forces that control somatic cell evolution and thus cancer risk. We have shown that aging and inflammation dependent changes in tissue environments dramatically dictate whether cancer-causing mutations are advantageous to stem cells in our tissues, starting the cells down the path to cancer. Our studies have focused on cancer initiation within the hematopoietic system and the lung. These studies have also uncovered molecular explanations for mutation-driven adaptation to aged and inflammatory tissue environments. In all, these studies indicate that strategies to prevent or treat cancers will need to incorporate interventions that alter tissue microenvironments. Citation Format: James DeGregori, Catherine Pham-Danis, Andrii I Rozhok, Edward J. Evans, Fabio Marongiu, Hannah Scarborough, Curtis J. Henry. Aging, tissue ecology, and the evolution of cancer within us [abstract]. In: Proceedings of the AACR Special Conference on the Evolutionary Dynamics in Carcinogenesis and Response to Therapy; 2022 Mar 14-17. Philadelphia (PA): AACR; Cancer Res 2022;82(10 Suppl):Abstract nr IA012.

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Ye, Tiantian, Xu Huang, Tianxiao Ma, et al. "Integrated Analysis of miRNAome and Transcriptome Identify Regulators of Elm Seed Aging." Plants 12, no. 8 (2023): 1719. http://dx.doi.org/10.3390/plants12081719.

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After maturity, seed vigor irreversibly decreases. Understanding the underlying mechanism is important to germplasm preservation. MicroRNAs (miRNAs) play vital regulatory roles in plants. However, little is known about how miRNAs regulate seed aging. Here, elm (Ulmus pumila L.) seeds of three aging stages were subjected to a multi-omics analysis including transcriptome, small RNAome and degradome, to find regulators of seed aging. In the small RNAome, 119 miRNAs were identified, including 111 conservative miRNAs and eight novel miRNAs specific to elm seeds, named upu-miRn1-8. A total of 4900 differentially expressed genes, 22 differentially expressed miRNAs, and 528 miRNA-target pairs were identified during seed ageing. The target genes were mainly involved in the processing of proteins in the endoplasmic reticulum, metabolism, plant hormone signal transduction, and spliceosome. The expression of several DEGs and miRNAs were verified by qRT-PCR. The degradome data showed the exact degradation sites of upu-miR399a on ABCG25, and upu-miR414a on GIF1, etc. The dual-luciferase assay verified the negative regulation of upu-miR399a on ABCG25 and upu-miR414a on GIF1 in tobacco leaves. This study outlined the regulation network of mRNA, miRNA and miRNA-target genes during seed aging, which is helpful in integrating the regulation mechanisms of seed vigor at the transcriptional and post-transcriptional levels.

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Bernhold, Quinten S., Jessica Gasiorek, and Howard Giles. "Communicative Predictors of Older Adults’ Successful Aging, Mental Health, and Alcohol Use." International Journal of Aging and Human Development 90, no. 2 (2018): 107–34. http://dx.doi.org/10.1177/0091415018784715.

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We examined how older adults’ communication about age-related topics is related to aging efficacy, successful aging, and well-being. Guided by the communicative ecology model of successful aging, three profiles of “environmental chatter”—that is, patterns of accommodation and overaccommodation older adults received from relational partners—were identified: positive, mixed-positive, and negative. Four profiles of individuals’ own age-related communication were identified, including a new profile: gloomy agers. Chatter profile membership and own age-related communication profile membership indirectly predicted successful aging, depressive symptoms, loneliness, and perceptions of unhealthy alcohol consumption via aging efficacy, but not self-reported alcoholic drinks consumed. Communication by both older adults and their relational partners may be consequential to experiences of successful aging and well-being.

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Kopelent Rehak, Jana. "Aging in Place: Changing Socio-ecology and the Power of Kinship on Smith Island, Maryland." Anthropology & Aging 40, no. 1 (2019): 48–62. http://dx.doi.org/10.5195/aa.2019.181.

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This article examines how the people known as Smith Islanders interact with their environment over the life-course. The purpose of the study is to contribute to a better understanding of aging in a small, rural, coastal community which changes are environmentally driven. To address the aging process in changing environments in this essay, I explore the relationship between the place, sense of self, and knowledge. Because the majority of people on the island today are in late life, the main threads in the fabric of this ethnographic narrative weave themselves into stories about aging experiences. I focus on males’ experiences, their traditional knowledge, and the role of kinship over their life-courses. The life history narratives of a Smith Island waterman known as Eddie Boy, discusses two elements present in both his childhood narratives and his late adulthood: work and kinship. I show how changing socio-ecology has altered the potential for intergenerational relations, which older islanders cherish, and how such changes in late life pose a new aging dilemma for current Smith Islanders.

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June, Andrea, and Meghan Marty. "RESILIENT AGING ROUNDTABLE: AN EVALUATION OF A BRIEF COMMUNITY PSYCHOEDUCATION DISCUSSION GROUP." Innovation in Aging 3, Supplement_1 (2019): S721—S722. http://dx.doi.org/10.1093/geroni/igz038.2645.

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Abstract Increased aging resilience levels are associated with many positive outcomes for older adults including improved quality of life, increased coping and adaptation, and decreased depressive symptoms (Earvolino-Ramirez, 2007; Fullen & Gorby, 2016; Hicks & Conner, 2014; (Sharpley, Bitsika, Wootten, & Christie, 2014). However, very few resilience promotion programs are described in the literature. The purpose of the present study was to evaluate a brief, community-based psychoeducation group designed to enhance aging resilience. Participants were recruited through a private mental health practice focused on serving older adults in the Pacific Northwest. Nine participants (M age = 71; 78% female, 100% non-Hispanic white; 100% with some college) completed the pre- and post-assessment measures: An adapted 9 item version of the Communicative Ecology Model of Successful Aging (CEMSA; Fowler, Gasiorek, & Giles, 2015) and the Groningen Ageing Resilience Inventory (GARI; van Abbema et al., 2015). The discussion group consisted of six 90-minute meetings every-other-week, facilitated by a licensed clinical psychologist. Each meeting focused on a different topic related to psycho-social aspects of aging and included understanding ageism, embracing change, creating meaning, normal and “successful” aging, and strengthening social ties. Although not statistically significant, initial results showed lower post-assessment mean scores on the CEMSA indicating lower levels of aging uncertainty, negative attributions, and pessimism as well as higher post-assessment mean scores on the GARI indicating higher perceived resilience. Moreover, 77.7 % of the group agreed or strongly agreed that they had learned a lot from the group. Future directions will be discussed.

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Bernhold, Quinten S., and Jessica Gasiorek. "Older adults’ perceptions of their own and their romantic partners’ age-related communication and their associations with aging well, depressive symptoms, and alcohol use disorder symptoms." Journal of Social and Personal Relationships 37, no. 4 (2019): 1172–92. http://dx.doi.org/10.1177/0265407519890413.

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Guided by the communicative ecology model of successful aging (CEMSA), this study examined how older adults’ and their romantic partners’ age-related communication indirectly predicts older adults’ perceptions of aging well, depressive symptoms, and alcohol use disorder (AUD) symptoms, via aging efficacy. Older adults were profiled as engaged, bantering, and disengaged agers. Romantic partners were profiled as engaged, bantering–high health, disengaged, and gloomy agers. Bantering older adults, disengaged older adults, and older adults with disengaged partners reported lower perceptions of aging well and more depressive symptoms, via lower aging efficacy (relative to engaged older adults and older adults with engaged partners). Also relative to engaged older adults, disengaged older adults reported more AUD symptoms, via lower aging efficacy. The indirect association involving AUD symptoms suggests that the CEMSA’s boundary conditions might be expanded to include more objective variants of successful aging. Results also suggest the merit of future family studies on how age-related communication might predict successful aging.

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Rishworth, Andrea, and Susan J. Elliott. "Multidimensional disparities, resisting inequities: A political ecology of aging in Uganda." Geoforum 135 (October 2022): 25–36. http://dx.doi.org/10.1016/j.geoforum.2022.06.009.

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Kobayashi, Tadashi, Hiroki Maita, and Hiroyuki Kato. "Medical ecology in near future of rapidly aging Japan: projected scenario." Technological Forecasting and Social Change 137 (December 2018): 327–29. http://dx.doi.org/10.1016/j.techfore.2018.06.049.

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Austad, S. N., and K. E. Fischer. "Mammalian Aging, Metabolism, and Ecology: Evidence From the Bats and Marsupials." Journal of Gerontology 46, no. 2 (1991): B47—B53. http://dx.doi.org/10.1093/geronj/46.2.b47.

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Reichard, Martin. "Evolutionary ecology of aging: time to reconcile field and laboratory research." Ecology and Evolution 6, no. 9 (2016): 2988–3000. http://dx.doi.org/10.1002/ece3.2093.

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Promislow, Daniel E. L., Thomas Flatt, and Russell Bonduriansky. "The Biology of Aging in Insects: From Drosophila to Other Insects and Back." Annual Review of Entomology 67, no. 1 (2022): 83–103. http://dx.doi.org/10.1146/annurev-ento-061621-064341.

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An enormous amount of work has been done on aging in Drosophila melanogaster, a classical genetic and molecular model system, but also in numerous other insects. However, these two extensive bodies of work remain poorly integrated to date. Studies in Drosophila often explore genetic, developmental, physiological, and nutrition-related aspects of aging in the lab, while studies in other insects often explore ecological, social, and somatic aspects of aging in both lab and natural populations. Alongside exciting genomic and molecular research advances in aging in Drosophila, many new studies have also been published on aging in various other insects, including studies on aging in natural populations of diverse species. However, no broad synthesis of these largely separate bodies of work has been attempted. In this review, we endeavor to synthesize these two semi-independent literatures to facilitate collaboration and foster the exchange of ideas and research tools. While lab studies of Drosophila have illuminated many fundamental aspects of senescence, the stunning diversity of aging patterns among insects, especially in the context of their rich ecology, remains vastlyunderstudied. Coupled with field studies and novel, more easily applicable molecular methods, this represents a major opportunity for deepening our understanding of the biology of aging in insects and beyond.

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Haase, Dagmar. "Urban Ecology of Shrinking Cities: An Unrecognized Opportunity?" Nature and Culture 3, no. 1 (2008): 1–8. http://dx.doi.org/10.3167/nc.2008.030101.

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Whereas environmental and social impacts of urban sprawl are widely discussed among scholars from both the natural and social sciences, the spatial consequences of urban decline are nearly neglected when discussing the impacts of land transition. Within the last decade, "shrinkage" and "perforation" have arisen as new terms to explain the land use development of urban regions faced with demographic change, particularly decreasing fertility, aging, and out-migration. Although shrinkage is far from being a "desired" scenario for urban policy makers, this paper argues that a perforation of the built-up structure in dense cities might bring up many positive implications.

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Zheng, Qin, Zhenning Teng, Jianhua Zhang, and Nenghui Ye. "ABA Inhibits Rice Seed Aging by Reducing H2O2 Accumulation in the Radicle of Seeds." Plants 13, no. 6 (2024): 809. http://dx.doi.org/10.3390/plants13060809.

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The seed, a critical organ in higher plants, serves as a primary determinant of agricultural productivity, with its quality directly influencing crop yield. Improper storage conditions can diminish seed vigor, adversely affecting seed germination and seedling establishment. Therefore, understanding the seed-aging process and exploring strategies to enhance seed-aging resistance are paramount. In this study, we observed that seed aging during storage leads to a decline in seed vigor and can coincide with the accumulation of hydrogen peroxide (H2O2) in the radicle, resulting in compromised or uneven germination and asynchronous seedling emergence. We identified the abscisic acid (ABA) catabolism gene, abscisic acid 8′-hydroxylase 2 (OsABA8ox2), as significantly induced by aging treatment. Interestingly, transgenic seeds overexpressing OsABA8ox2 exhibited reduced seed vigor, while gene knockout enhanced seed vigor, suggesting its role as a negative regulator. Similarly, seeds pretreated with ABA or diphenyleneiodonium chloride (DPI, an H2O2 inhibitor) showed increased resistance to aging, with more robust early seedling establishment. Both OsABA8ox2 mutant seeds and seeds pretreated with ABA or DPI displayed lower H2O2 content during aging treatment. Overall, our findings indicate that ABA mitigates rice seed aging by reducing H2O2 accumulation in the radicle. This study offers valuable germplasm resources and presents a novel approach to enhancing seed resistance against aging.

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Lu, Dongqi, Qinqin Lin, Jiangfeng Zhu, and Fan Zhang. "Effects of Aging Uncertainty on the Estimation of Growth Functions of Major Tuna Species." Fishes 8, no. 3 (2023): 131. http://dx.doi.org/10.3390/fishes8030131.

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Fishery stock assessment requires accurate specification of the growth function of target species, and aging uncertainty is an important factor that affects the estimation of growth parameters. In this study, we used simulations to study the effects of two types of aging uncertainty, aging error and sampled age range, on the parameter estimation of the Von Bertalanffy growth function, including asymptotic length (L∞), growth coefficient (k), and theoretical age in the year at zero length (t0) of five important tuna species. We found that the uncertainty of the estimated growth curves increased with increasing aging errors. When aging errors were fixed among ages, the effects of age range on estimation error of growth parameters were different among species and growth parameters. When the aging error increased with age, the estimation uncertainty of L∞ and k was the greatest when only young age groups were sampled, while the estimation uncertainty of t0 was the greatest when only old age groups were sampled. Therefore, reducing the aging error and sampling individuals with a wider age range are important for increasing the accuracy and decreasing the uncertainty of the estimated growth function, which will further reduce the uncertainty in fishery stock assessment.

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Anderson, Lindsey B. "Communicating legitimacy through portrayals of successful aging: An examination of Pulte homes’ online communication strategies." Public Relations Inquiry 9, no. 1 (2019): 27–46. http://dx.doi.org/10.1177/2046147x19840072.

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The aging population has created implications for many industries, especially in terms of establishing legitimacy among stakeholders. One industry that has been affected by the shifting demographics is homebuilding. Older adults must consider future housing needs that allow for successful aging. However, the current inventory of houses and neighborhoods are not necessarily built to suit this population. Pulte Homes, a national homebuilding company, has a line of active adult communities under the name Del Webb. To understand how Pulte communicates legitimacy for this housing product, I completed a qualitative content analysis of the Del Webb section of the organizational website that integrates the tenets of the Communication Ecology Model of Successful Aging (CEMSA) with five discursive strategies for establishing legitimacy. In doing so, I found that Pulte constructed an idealized portrayal of age/aging by emphasizing the need to (1) plan for future needs, (2) express optimism about aging, (3) resist age-based stereotypes, and (4) minimize the role of communication technology. Based on these findings, Pulte’s discourse ultimately positions Del Webb as a utopia for older adults/space that facilitates ‘successful’ aging and raises questions about the transparency of this organizational discourse.

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Pletcher, Scott D., Hadise Kabil, and Linda Partridge. "Chemical Complexity and the Genetics of Aging." Annual Review of Ecology, Evolution, and Systematics 38, no. 1 (2007): 299–326. http://dx.doi.org/10.1146/annurev.ecolsys.38.091206.095634.

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Roach, Deborah A., and James R. Carey. "Population Biology of Aging in the Wild." Annual Review of Ecology, Evolution, and Systematics 45, no. 1 (2014): 421–43. http://dx.doi.org/10.1146/annurev-ecolsys-120213-091730.

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Panov, Vladimir. "Changes in teeth associated with aging." Varna Medical Forum 12, no. 1 (2023): 183. http://dx.doi.org/10.14748/vmf.v12i1.8806.

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Craig, J. F. "Aging in fish." Canadian Journal of Zoology 63, no. 1 (1985): 1–8. http://dx.doi.org/10.1139/z85-001.

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Theories on aging are well advanced but empirical data lag far behind them mainly because few fish populations are unexploited and are allowed to reach old age. There is more evidence supporting the theory of genetic aging controlled by a biological clock than aging by random damage, but the two are probably interconnected. Growth and natural mortality are closely correlated between and within species and populations. Fast growth and early maturity curtail the life-span; slow growth and late maturity have the reverse effect. There appears to be a trade-off between reproductive effort and longevity to ensure the production of the maximum number of progeny over the life-span of the mature adults. This trade-off is influenced by a feedback system dependent on reproductive success. Genetic control of growth and thus mortality is not well understood and is obscured by environmental factors. Anatomical and physiological changes with age are similar to those of mammals and include the appearance of malignant tumors. Changes in growth and natural mortality have an important influence on yield and recruitment in fisheries. The understanding of aging processes lies in an improved knowledge of bioenergetic processes and the environmental factors that control them.

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Canini, Matteo, Petronilla Battista, Pasquale Anthony Della Rosa, et al. "Computerized Neuropsychological Assessment in Aging: Testing Efficacy and Clinical Ecology of Different Interfaces." Computational and Mathematical Methods in Medicine 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/804723.

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Digital technologies have opened new opportunities for psychological testing, allowing new computerized testing tools to be developed and/or paper and pencil testing tools to be translated to new computerized devices. The question that rises is whether these implementations may introduce some technology-specific effects to be considered in neuropsychological evaluations. Two core aspects have been investigated in this work: the efficacy of tests and the clinical ecology of their administration (the ability to measure real-world test performance), specifically (1) the testing efficacy of a computerized test when response to stimuli is measured using a touch-screen compared to a conventional mouse-control response device; (2) the testing efficacy of a computerized test with respect to different input modalities (visual versus verbal); and (3) the ecology of two computerized assessment modalities (touch-screen and mouse-control), including preference measurements of participants. Our results suggest that (1) touch-screen devices are suitable for administering experimental tasks requiring precise timings for detection, (2) intrinsic nature of neuropsychological tests should always be respected in terms of stimuli presentation when translated to new digitalized environment, and (3) touch-screen devices result in ecological instruments being proposed for the computerized administration of neuropsychological tests with a high level of preference from elderly people.

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Zhang, Yixin, Fan Fan, Qunjie Zhang, et al. "Identification and Functional Analysis of Long Non-Coding RNA (lncRNA) in Response to Seed Aging in Rice." Plants 11, no. 23 (2022): 3223. http://dx.doi.org/10.3390/plants11233223.

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Many lncRNAs have been shown to play a vital role in aging processes. However, how lncRNAs regulate seed aging remains unknown. In this study, we performed whole transcriptome strand-specific RNA sequencing of samples from rice embryos, analyzed the differences in expression of rice seed lncRNAs before and after artificial aging treatment (AAT), and systematically screened 6002 rice lncRNAs. During the AAT period, the expression levels of most lncRNAs (454) were downregulated and only four were upregulated among the 458 differentially expressed lncRNAs (DELs). Cis- or trans-regulated target genes of the four upregulated lncRNAs were mainly related to base repair, while 454 downregulated lncRNAs were related to plant–pathogen interaction, plant hormones, energy metabolism, and secondary metabolism. The pathways of DEL target genes were similar with those of differentially expressed mRNAs (DEGs). A competing endogenous RNA (ceRNA) network composed of 34 lncRNAs, 24 microRNAs (miRNA), and 161 mRNAs was obtained. The cDNA sequence of lncRNA LNC_037529 was obtained by rapid amplification of cDNA ends (RACE) cloning with a total length of 1325 bp, a conserved 5′ end, and a non-conserved 3′ end. Together, our findings indicate that genome-wide selection for lncRNA downregulation was an important mechanism for rice seed aging. LncRNAs can be used as markers of seed aging in rice. These findings provide a future path to decipher the underlying mechanism associated with lncRNAs in seed aging.

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39

Garrott, Robert A. "Bias in Aging Feral Horses." Journal of Range Management 44, no. 6 (1991): 611. http://dx.doi.org/10.2307/4003046.

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Valencak, T. "AGING SNAKES." Journal of Experimental Biology 210, no. 17 (2007): v. http://dx.doi.org/10.1242/jeb.001081.

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D'Amico-Willman, Katherine M., Elizabeth S. Anderson, Thomas M. Gradziel, and Jonathan Fresnedo-Ramírez. "Relative Telomere Length and Telomerase Reverse Transcriptase (TERT) Expression Are Associated with Age in Almond (Prunus dulcis [Mill.] D.A.Webb)." Plants 10, no. 2 (2021): 189. http://dx.doi.org/10.3390/plants10020189.

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While all organisms age, our understanding of how aging occurs varies among species. The aging process in perennial plants is not well-defined, yet can have implications on production and yield of valuable fruit and nut crops. Almond exhibits an age-related disorder known as non-infectious bud failure (BF) that affects vegetative bud development, indirectly affecting kernel yield. This species and disorder present an opportunity to address aging in a commercially relevant and vegetatively propagated perennial crop. The hypothesis tested in this study was that relative telomere length and/or telomerase reverse transcriptase (TERT) expression can serve as biomarkers of aging in almond. Relative telomere lengths and expression of TERT, a subunit of the enzyme telomerase, were measured via qPCR methods using bud and leaf samples collected from distinct age cohorts over a two-year period. Results from this work show a marginal but significant association between both relative telomere length and TERT expression, and age, suggesting that as almonds age, telomeres shorten and TERT expression decreases. This work provides information on potential biomarkers of perennial plant aging, contributing to our knowledge of this process. In addition, these results provide opportunities to address BF in almond breeding and nursery propagation.

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Bourke, Andrew F. G. "Kin Selection and the Evolutionary Theory of Aging." Annual Review of Ecology, Evolution, and Systematics 38, no. 1 (2007): 103–28. http://dx.doi.org/10.1146/annurev.ecolsys.38.091206.095528.

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Carlson, Jack C. "The causes of aging." American Journal of Human Biology 12, no. 5 (2000): 718–20. http://dx.doi.org/10.1002/1520-6300(200009/10)12:5<718::aid-ajhb21>3.0.co;2-o.

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Lv, Tang, Juan Li, Lanyu Zhou, et al. "Aging-Induced Reduction in Safflower Seed Germination via Impaired Energy Metabolism and Genetic Integrity Is Partially Restored by Sucrose and DA-6 Treatment." Plants 13, no. 5 (2024): 659. http://dx.doi.org/10.3390/plants13050659.

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Seed storage underpins global agriculture and the seed trade and revealing the mechanisms of seed aging is essential for enhancing seed longevity management. Safflower is a multipurpose oil crop, rich in unsaturated fatty acids that are at high risk of peroxidation as a contributory factor to seed aging. However, the molecular mechanisms responsible for safflower seed viability loss are not yet elucidated. We used controlled deterioration (CDT) conditions of 60% relative humidity and 50 °C to reduce germination in freshly harvested safflower seeds and analyzed aged seeds using biochemical and molecular techniques. While seed malondialdehyde (MDA) and fatty acid content increased significantly during CDT, catalase activity and soluble sugar content decreased. KEGG analysis of gene function and qPCR validation indicated that aging severely impaired several key functional and biosynthetic pathways including glycolysis, fatty acid metabolism, antioxidant activity, and DNA replication and repair. Furthermore, exogenous sucrose and diethyl aminoethyl hexanoate (DA-6) treatment partially promoted germination in aged seeds, further demonstrating the vital role of impaired sugar and fatty acid metabolism during the aging and recovery processes. We concluded that energy metabolism and genetic integrity are impaired during aging, which contributes to the loss of seed vigor. Such energy metabolic pathways as glycolysis, fatty acid degradation, and the tricarboxylic acid cycle (TCA) are impaired, especially fatty acids produced by the hydrolysis of triacylglycerols during aging, as they are not efficiently converted to sucrose via the glyoxylate cycle to provide energy supply for safflower seed germination and seedling growth. At the same time, the reduced capacity for nucleotide synthesis capacity and the deterioration of DNA repair ability further aggravate the damage to DNA, reducing seed vitality.

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Xu, Fan, Yongming Huang, and Qiang Wang. "Aging Industries in the Regional Economy: How to Support an Aging China?" Land 11, no. 11 (2022): 2096. http://dx.doi.org/10.3390/land11112096.

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This study investigates the law, distribution characteristics, and changing trend of the coordinated development of China’s aging industry and regional economy, as well as the factors which influence the degree of coordination between the aging industry and economic development on the provincial level. In doing so, we construct a comprehensive evaluation index system of the aging industry and regional economy development, introduce an entropy weight coupling model, and measure the coupling and coordinated development level of the two systems using data of 31 selected Chinese provinces (municipalities) from 2009 to 2019. The spatial Dubin model is then used to empirically analyze the influencing factors and spatial effect decomposition of the coordinated development of the aging industry and regional economy. We reach the following main results: (1) China’s aging industry is developing unevenly, with substantial regional differences, but these differences have narrowed in recent years. (2) China’s regional economic disparities have widened. The eastern regions have the highest level of development, while the northeast region’s growth rate of GDP has declined since 2014. (3) The coordinated development of the aging industry and regional economy in one region of China has a positive impact on its neighboring regions, and all Chinese regions exhibits high–high, low–low agglomeration characteristics in terms of their degree of coordination. (4) A variety of socioeconomic and demographic factors affect the coordinated development of the aging industry and regional economy. An important implication of these findings is that, China should improve population structure, population quality, and economic development quality in order to achieve a high-level coordinated development of the aging industry and regional economy.

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Haussmann, Mark F., and Nicole M. Marchetto. "Telomeres: Linking stress and survival, ecology and evolution." Current Zoology 56, no. 6 (2010): 714–27. http://dx.doi.org/10.1093/czoolo/56.6.714.

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Abstract Telomeres are protective structures at the ends of eukaryotic chromosomes. The loss of telomeres through cell division and oxidative stress is related to cellular aging, organismal growth and disease. In this way, telomeres link molecular and cellular mechanisms with organismal processes, and may explain variation in a number of important life-history traits. Here, we discuss how telomere biology relates to the study of physiological ecology and life history evolution. We emphasize current knowledge on how telomeres may relate to growth, survival and lifespan in natural populations. We finish by examining interesting new connections between telomeres and the glucocorticoid stress response. Glucocorticoids are often employed as indices of physiological condition, and there is evidence that the glucocorticoid stress response is adaptive. We suggest that one way that glucocorticoids impact organismal survival is through elevated oxidative stress and telomere loss. Future work needs to establish and explore the link between the glucocorticoid stress response and telomere shortening in natural populations. If a link is found, it provides an explanatory mechanism by which environmental perturbation impacts life history trajectories.

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Masliukov, P. M., and A. D. Nozdrachev. "Hypothalamic Regulatory Mechanisms of Aging." Journal of Evolutionary Biochemistry and Physiology 57, no. 3 (2021): 473–91. http://dx.doi.org/10.1134/s0022093021030030.

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Dyleva, Yu A., E. V. Belik, and O. V. Gruzdeva. "Obesity and Aging: General Aspects." Journal of Evolutionary Biochemistry and Physiology 59, no. 2 (2023): 420–32. http://dx.doi.org/10.1134/s0022093023020102.

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Morganti, Francesca. "Longevity as a Responsibility: Constructing Healthy Aging by Enacting within Contexts over the Entire Lifespan." Geriatrics 9, no. 4 (2024): 93. http://dx.doi.org/10.3390/geriatrics9040093.

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Studying aging now requires going beyond the bio-psycho-social model and incorporating a broader multidisciplinary view capable of capturing the ultimate complexity of being human that is expressed as individuals age. Current demographic trends and the lengthening of life expectancies allow the observation of long-lived individuals in full health. These super-agers are no longer an exception. Indeed, individuals can have a good quality of life even over age 70 and living with chronic or neurodegenerative diseases. This change is driven in part by the cohort effect observed in people who are about to age today (e.g., better schooling, more advanced health conditions, and technologization) but more so by the gradual overcoming of ageist views. An aged person is no longer seen as a quitter but rather as one empowered to direct their own trajectory of potentially healthy longevity. According to this vision, this article proposes a situated lifespan perspective for the study of aging that integrates pedagogical models of developmental ecology with psychological theories of optimal experience to understand the individual motivational perspective on aging. At the same time, it does not disregard analyzing the daily and cultural contexts in which everyone situates and that guide aging trajectories. Nor does it forget that aging people are body-mind (embodied) organisms that, with contexts and through motivations, seize opportunities for action (affordances) to evolve in an optimal way during their lifespan. This theoretical reflection sheds new light on the aging process and on future trends in healthy longevity research.

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Colburn, Mona L. "Suspensory Tuberosities for Aging and Sexing Squirrels." Journal of Wildlife Management 50, no. 3 (1986): 456. http://dx.doi.org/10.2307/3801104.

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Journal articles on the topic 'Ecology of aging'

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