Aging is not senescence: a short computer demonstration and implications for medical practice
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Clinics |
Texto Completo: | https://www.revistas.usp.br/clinics/article/view/18038 |
Resumo: | INTRODUCTION: The discussion regarding the evolution of aging is almost as old as Darwinian Evolution Theory, but to date, it has remained one of biology's unresolved problems. One issue is how to reconcile natural selection, which is understood as a process that purges deleterious characteristics, with senescence, which seems to offer no advantages to the individual. METHOD: A computer simulation that illustrates an evolutionary mechanism for the development of senescence in populations is presented. DISCUSSION: In this article, we debate that two popular explanations for the existence of senescence, namely, (1) the removal of elders for the benefit of the species and (2) the progressive deterioration of the organic machine due to continuous use, are not correct. While human populations continue to age, it is important that the physician understands that senescence, here defined as the progressive impairment of an organism, does not necessarily accompany aging, which we here define as the mere passage of time. As such, we argue that certain processes that were originally assumed to be part of aging should have their status changed because they are actually diseases. Physicians often encounter situations that depend on a better understanding of what limitations senescence imposes on most living species. The concepts of aging (the unavoidable passage of time), senescence (progressive physiologic impairment), and senility (the pathological development of diseases), are discussed. |
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Aging is not senescence: a short computer demonstration and implications for medical practice EvolutionSenilityCellular automataMutation accumulationComputer simulation INTRODUCTION: The discussion regarding the evolution of aging is almost as old as Darwinian Evolution Theory, but to date, it has remained one of biology's unresolved problems. One issue is how to reconcile natural selection, which is understood as a process that purges deleterious characteristics, with senescence, which seems to offer no advantages to the individual. METHOD: A computer simulation that illustrates an evolutionary mechanism for the development of senescence in populations is presented. DISCUSSION: In this article, we debate that two popular explanations for the existence of senescence, namely, (1) the removal of elders for the benefit of the species and (2) the progressive deterioration of the organic machine due to continuous use, are not correct. While human populations continue to age, it is important that the physician understands that senescence, here defined as the progressive impairment of an organism, does not necessarily accompany aging, which we here define as the mere passage of time. As such, we argue that certain processes that were originally assumed to be part of aging should have their status changed because they are actually diseases. Physicians often encounter situations that depend on a better understanding of what limitations senescence imposes on most living species. The concepts of aging (the unavoidable passage of time), senescence (progressive physiologic impairment), and senility (the pathological development of diseases), are discussed. Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo2009-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/clinics/article/view/1803810.1590/S1807-59322009000500013Clinics; Vol. 64 No. 5 (2009); 451-457 Clinics; v. 64 n. 5 (2009); 451-457 Clinics; Vol. 64 Núm. 5 (2009); 451-457 1980-53221807-5932reponame:Clinicsinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/clinics/article/view/18038/20103Monaco, Thiago OliveiraSilveira, Paulo Sergio Panseinfo:eu-repo/semantics/openAccess2012-05-22T18:52:35Zoai:revistas.usp.br:article/18038Revistahttps://www.revistas.usp.br/clinicsPUBhttps://www.revistas.usp.br/clinics/oai||clinics@hc.fm.usp.br1980-53221807-5932opendoar:2012-05-22T18:52:35Clinics - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Aging is not senescence: a short computer demonstration and implications for medical practice |
title |
Aging is not senescence: a short computer demonstration and implications for medical practice |
spellingShingle |
Aging is not senescence: a short computer demonstration and implications for medical practice Monaco, Thiago Oliveira Evolution Senility Cellular automata Mutation accumulation Computer simulation |
title_short |
Aging is not senescence: a short computer demonstration and implications for medical practice |
title_full |
Aging is not senescence: a short computer demonstration and implications for medical practice |
title_fullStr |
Aging is not senescence: a short computer demonstration and implications for medical practice |
title_full_unstemmed |
Aging is not senescence: a short computer demonstration and implications for medical practice |
title_sort |
Aging is not senescence: a short computer demonstration and implications for medical practice |
author |
Monaco, Thiago Oliveira |
author_facet |
Monaco, Thiago Oliveira Silveira, Paulo Sergio Panse |
author_role |
author |
author2 |
Silveira, Paulo Sergio Panse |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Monaco, Thiago Oliveira Silveira, Paulo Sergio Panse |
dc.subject.por.fl_str_mv |
Evolution Senility Cellular automata Mutation accumulation Computer simulation |
topic |
Evolution Senility Cellular automata Mutation accumulation Computer simulation |
description |
INTRODUCTION: The discussion regarding the evolution of aging is almost as old as Darwinian Evolution Theory, but to date, it has remained one of biology's unresolved problems. One issue is how to reconcile natural selection, which is understood as a process that purges deleterious characteristics, with senescence, which seems to offer no advantages to the individual. METHOD: A computer simulation that illustrates an evolutionary mechanism for the development of senescence in populations is presented. DISCUSSION: In this article, we debate that two popular explanations for the existence of senescence, namely, (1) the removal of elders for the benefit of the species and (2) the progressive deterioration of the organic machine due to continuous use, are not correct. While human populations continue to age, it is important that the physician understands that senescence, here defined as the progressive impairment of an organism, does not necessarily accompany aging, which we here define as the mere passage of time. As such, we argue that certain processes that were originally assumed to be part of aging should have their status changed because they are actually diseases. Physicians often encounter situations that depend on a better understanding of what limitations senescence imposes on most living species. The concepts of aging (the unavoidable passage of time), senescence (progressive physiologic impairment), and senility (the pathological development of diseases), are discussed. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-05-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/clinics/article/view/18038 10.1590/S1807-59322009000500013 |
url |
https://www.revistas.usp.br/clinics/article/view/18038 |
identifier_str_mv |
10.1590/S1807-59322009000500013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/clinics/article/view/18038/20103 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo |
publisher.none.fl_str_mv |
Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo |
dc.source.none.fl_str_mv |
Clinics; Vol. 64 No. 5 (2009); 451-457 Clinics; v. 64 n. 5 (2009); 451-457 Clinics; Vol. 64 Núm. 5 (2009); 451-457 1980-5322 1807-5932 reponame:Clinics instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Clinics |
collection |
Clinics |
repository.name.fl_str_mv |
Clinics - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||clinics@hc.fm.usp.br |
_version_ |
1800222754757148672 |