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Entropy Explains Aging, Genetic Determinism Explains Longevity, and Undefined Terminology Explains Misunderstanding Both
Open accessAbstract
ommunication in the field of biogerontology is a minefield because all of the commonly used terms have no universally accepted definitions.In a series of five annual meetings that I chaired recently in an attempt to define common terms, the dozen or more experts who attended could not agree on the definition of almost all of them, including ''aging.''The committee was disbanded and the communications dilemma remains.''Aging, Bench to Bedside,'' the collection of mini reviews published as a series in this journal, is representative of this unsolved problem.Not only does the problem result in communication failures, it also produces erroneous interpretations of research results; illogical allocation of research funds; and misdirected scientific, economic, social, and political policy decisions [1-3].There is no other field of science in which a similarly bleak situation exists.As a consequence of the terminology dilemma, I will define for use in this editorial the four aspects of the finitude of life: aging, the determinants of longevity, age-associated diseases, and death.I will not discuss the latter, although even this word defies a universally accepted definition.
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“While lifespan is a measure that incorporates the impacts of aging, the determinants of longevity are distinct from those that influence the rate at which an organism ages.14”
From Asynchronous, contagious and digital aging (2021) · cites this paper as [14]
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The serial cultivation of human diploid cell strains
Hayflick, L., & Moorhead, P. S. (1961) · Experimental Cell Research · doi:10.1016/0014-4827(61)90192-6 · Cited by 8,508
Self-citationAging and Death in an Organism That Reproduces by Morphologically Symmetric Division
Stewart, E. J., Madden, R., Paul, G., & Taddéi, F. (2005) · PLoS Biology · doi:10.1371/journal.pbio.0030045 · Cited by 753
Hayflick, L. (1998) · Experimental Gerontology · doi:10.1016/s0531-5565(98)00023-0 · Cited by 478
Self-citationBiological Aging Is No Longer an Unsolved Problem
HAYFLICK, L. (2007) · Annals of the New York Academy of Sciences · doi:10.1196/annals.1395.001 · Cited by 418
Self-citationHayflick, L. (2000) · Nature · doi:10.1038/35041709 · Cited by 360
Self-citationSenescence in a Bacterium with Asymmetric Division
Ackermann, M., Stearns, S. C., & Jenal, U. (2003) · Science · doi:10.1126/science.1083532 · Cited by 354
Chance, development, and aging
de Grey, A. D. N. J. (2001) · Experimental Gerontology · doi:10.1016/s0531-5565(01)00123-1 · Cited by 281
Finch, C. E., & Kirkwood, T. (2000) · doi:10.25405/ncl.34589739 · Cited by 268
Recent developments in yeast aging
Kaeberlein, M., Burtner, C. R., & Kennedy, B. K. (2007) · PLoS Genetics · doi:10.1371/journal.pgen.0030084 · Cited by 239
The Role of Mitochondrial DNA Mutations in Mammalian Aging
Kujoth, G. C., Bradshaw, P. C., Haroon, S., & Prolla, T. A. (2007) · PLoS Genetics · doi:10.1371/journal.pgen.0030024 · Cited by 193
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Research works printed but not linked: 14
- Hayflick, 2007, Ann N Y Acad Sci, 1100, 1
- Hayflick, 2004, J Gerontol A Biol Sci Med Sci, 59, B573
- Hayflick, 2000, Nature, 408, 37
- Hayflick, 2000, Br J Canc, 83, 841
- Kujoth, 2007, PLoS Genet, 3
- Nystrom, 2007, PLoS Genet, 3
- Ackermann, 2003, Science, 300, 1920
- Hayflick, 1961, Exp Cell Res, 25, 585
- Stewart, 2005, PLoS Biol, 3
- Kaeberlein, 2007, PLoS Genet, 3
- Piper, 2007, PLoS Genet, 3
- Antebi, 2007, PLoS Genet, 3
- Hayflick, 2003, Contemp Gerontol, 10, 65
- Martin, 2007, PLoS Genet, 3
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Biliński, T., & Zadrąg‐Tęcza, R. (2017) · Cambridge University Press eBooks · doi:10.1017/9781139939867.018 · Cited by 1
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Иванович, Д. В., Yermakova, N. A., Kakorina, E. P., Krutko, V. N., & Kuznetsov, P. (2020) · Russian Journal of Occupational Health and Industrial Ecology · doi:10.31089/1026-9428-2020-60-5-311-317 · Cited by 1
Aging and longevity: An evolutionary approach
Candore, G., & Caruso, C. (2021) · Elsevier eBooks · doi:10.1016/b978-0-12-822569-1.00002-0 · Cited by 1
Sikter, A. (2019) · Acta Scientific Medical Sciences · doi:10.31080/asms.2020.04.0509 · Cited by 1
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Balistreri, C. R., Candore, G., Scapagnini, G., & Caruso, C. (2015) · Springer eBooks · doi:10.1007/978-3-642-27814-3_97-2 · Cited by 1
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Haring, R., Budde, K., & Wallaschofski, H. (2012) · Springer eBooks · doi:10.1007/978-1-4614-1689-0_10
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Ansin, E., Liljedahl, L., & Jorjani, H. (2012) · Bulletin - International Bull Evaluation Service/Interbull bulletin
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King, C. (2017) · UWA Profiles and Research Repository (University of Western Australia)
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Popovic, M. E. (2018) · arXiv (Cornell University) · doi:10.48550/arxiv.1810.10389
Macieira‐Coelho, A. (2019) · Elsevier eBooks · doi:10.1016/b978-0-12-801238-3.11441-2
dos Santos, G. A., & Sanerma, P. (2019) · Revista Prâksis · doi:10.25112/rpr.v3i0.1996
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Januškevičius, A., & Lavinskienė, S. (2015) · Pulmonology and allergology · doi:10.37499/pia.311
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Yoo, S. S. (2021) · UWSpace (University of Waterloo)
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Additional file 5 of The self-organization model reveals systematic characteristics of aging
Yin, W., Huang, T., Li, Y., & Sha, X. (2020) · Figshare · doi:10.6084/m9.figshare.12015204
Additional file 6 of The self-organization model reveals systematic characteristics of aging
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Additional file 2 of The self-organization model reveals systematic characteristics of aging
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Metadata
- Authors
- Hayflick, L.
- Affiliations
- University of California, San Francisco (US)
- Corresponding author
- Hayflick, Leonard
- ORCID
- Hayflick, Leonard
- Venue
- PLoS Genetics
- Publisher
- Public Library of Science (PLoS)
- Published
- 2007
- Volume
- 3
- Issue
- 12
- Pages
- e220
- ISSN
- 1553-7390 (ISSN-L)
- 1553-7404
- PMC
- PMC2134939
- OpenAlex
- W2112599794
- Cited by
- 260
- References
- 18
- Citations by year
- 2026: 16 · 2025: 9 · 2024: 10 · 2023: 9 · 2022: 24 · 2021: 25 · 2020: 25 · 2019: 19 · 2018: 16 · 2017: 20 · 2016: 16 · 2015: 12 · 2014: 16 · 2013: 12 · 2012: 12
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- PLoS Genetics (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Telomeres, Telomerase, and Senescence
- Social Sciences › Arts and Humanities › History and Philosophy of Science › Philosophy of Biology and Scientific Explanation
- Keywords
- aging, longevity, terminological definitions, genetic determinism, age-related diseases, finitude of life, entropy, research funding allocation, science communication
- MeSH terms
- Aging, Animals, Geriatrics, Humans, Longevity, Terminology as Topic, Entropy
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