Evolution Of Longevity In Animals

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Evolution Of Longevity In Animals

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Author : Avril Woodhead
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-07

Evolution Of Longevity In Animals written by Avril Woodhead and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-07 with Medical categories.

The analysis of intra-group correlations between LS and BW at representative intervals yields no consistent support for the hypothesis that lower BW is associated with longer LS. Indeed, among male Wistar rats and C57BL/6J and A/J mice followed since weaning on AL diets, the data suggested that relatively higher BW across the adult LS was generally associated with longer life. Even when the diet was restricted by EOD or RES regimens, this pattern of positive correlations between LS and BW persisted for the C57BL/6J and A/J strains when relative ages were analyzed. However, when BW at absolute ages were correlated with LS, support for the positive relationship between BW and LS was not as forthcoming. When AL groups were assessed beginning at later ages (> 10 months), the pattern of positive correlations was very evident for the Wistar rats--heavier rats tended to liver longer. This pattern was also evident among AL-fed C57BL/6J mice followed since 6 months, but was lost in the 10-month group in this strain. Among A/J mice on AL diets, the pattern became somewhat negative when followed at 6 and 10 months of age. However, among both C57BL/6J and A/J mice placed on EOD diets at 6 and 10 months of age, the pattern clearly tended toward the positive.

Evolution Of Longevity In Animals

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Author : Avril Woodhead
language : en
Publisher: Springer
Release Date : 1987-11-01

Evolution Of Longevity In Animals written by Avril Woodhead and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-11-01 with Medical categories.

The analysis of intra-group correlations between LS and BW at representative intervals yields no consistent support for the hypothesis that lower BW is associated with longer LS. Indeed, among male Wistar rats and C57BL/6J and A/J mice followed since weaning on AL diets, the data suggested that relatively higher BW across the adult LS was generally associated with longer life. Even when the diet was restricted by EOD or RES regimens, this pattern of positive correlations between LS and BW persisted for the C57BL/6J and A/J strains when relative ages were analyzed. However, when BW at absolute ages were correlated with LS, support for the positive relationship between BW and LS was not as forthcoming. When AL groups were assessed beginning at later ages (> 10 months), the pattern of positive correlations was very evident for the Wistar rats--heavier rats tended to liver longer. This pattern was also evident among AL-fed C57BL/6J mice followed since 6 months, but was lost in the 10-month group in this strain. Among A/J mice on AL diets, the pattern became somewhat negative when followed at 6 and 10 months of age. However, among both C57BL/6J and A/J mice placed on EOD diets at 6 and 10 months of age, the pattern clearly tended toward the positive.

Longevity And Evolution

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Author : Gustavo Barja
language : en
Publisher: Nova Science Publishers
Release Date : 2011-10

Longevity And Evolution written by Gustavo Barja and has been published by Nova Science Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10 with Aging categories.

This book reviews research on presently known theories and mechanisms responsible for the rate of ageing and maximum longevity of different animals including birds, mammals and humans (to explain how" do we age and the velocity of the ageing process). In addition, this book deals with the historical evolutionary explanations of ageing and longevity ("why" do we age). The mechanisms discussed include mitochondria and oxygen free radicals, the presence of macromolecules constitutively highly resistant to deleterious modification in the tissues of long-lived animals, insulin/IGF-1 like signalling, telomere shortening, dietary restrictions, and other proposed molecular mechanisms.

Longevity

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Author : James R. Carey
language : en
Publisher: Princeton University Press
Release Date : 2003-03-02

Longevity written by James R. Carey and has been published by Princeton University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-03-02 with Family & Relationships categories.

Despite our deep interest in mortality, little is known about why some individuals live to middle age and others to extreme old age. Life span, mortality, and aging present some of the most profound mysteries in biology. In Longevity, James Carey draws on unprecedented data to develop a biological and demographic framework for identifying the key factors that govern aging, life span, and mortality in humans and other animals. Carey presents the results of a monumental, twelve-year, National Institute on Aging-funded research project on the determinants of longevity using data from the life tables of five million Mediterranean fruit flies, the most comprehensive set of life table studies ever on the mortality dynamics of a single species. He interprets the fruit fly data within the context of human aging and the aging process in general to identify the determinants of mortality. Three key themes emerge: the absence of species-specific life span limits, the context-specific nature of the mortality rate, and biodemographic linkages between longevity and reproduction. A powerful foundation for the emerging field of biodemography and a rich framework for considering the future of human life span, Longevity will be an indispensable resource for readers from a range of fields including population biology, demography, gerontology, ecology, evolutionary biology, and medical research.

The Evolution Of Senescence In The Tree Of Life

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Author : Richard P. Shefferson
language : en
Publisher:
Release Date : 2017

The Evolution Of Senescence In The Tree Of Life written by Richard P. Shefferson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with MEDICAL categories.

Top researchers in the field introduce interdisciplinary perspectives on senescence, presenting new insights and cutting-edge research.

On Comparative Longevity In Man And The Lower Animals

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Author : Sir Edwin Ray Lankester
language : en
Publisher:
Release Date : 1870

On Comparative Longevity In Man And The Lower Animals written by Sir Edwin Ray Lankester and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1870 with Life (Biology) categories.

Longevity Records

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Author : James R. Carey
language : en
Publisher: University Press of Southern Denmark
Release Date : 2000

Longevity Records written by James R. Carey and has been published by University Press of Southern Denmark this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Nature categories.

This book is the world's largest compendium of documented life spans in vertebrates. Record life spans for over 3000 species of mammals, birds, amphibians, reptiles, and fish indicate wild or captive status and sex (where available), and are linked to source references. A brief introduction addresses the concept of life span, summarizes methods for date gathering, criteria for inclusion, and provides a graphic summarization of within and among group variation in record life spans. The date is organized in four main tables: mammals, birds, reptiles and amphibians, and fish. The book is useful in demography, fisheries and wildlife biology, ecology, population and evolutionary biology, and gerontology.

Between Zeus And The Salmon

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Author : Caleb E. Finch
language : en
Publisher:
Release Date : 1997-10-29

Between Zeus And The Salmon written by Caleb E. Finch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-10-29 with Health & Fitness categories.

Demographers and public health specialists have been surprised by the rapid increases in life expectancy, especially at the oldest ages, that have occurred since the early 1960s. Some scientists are calling into question the idea of a fixed upper limit for the human life span. There is new evidence about the genetic bases for both humans and other species. There are also new theories and models of the role of mutations accumulating over the life span and the possible evolutionary advantages of survival after the reproductive years. This volume deals with such diverse topics as the role of the elderly in other species and among human societies past and present, the contribution of evolutionary theory to our understanding of human longevity and intergenerational transfers, mathematical models for survival, and the potential for collecting genetic material in household surveys. It will be particularly valuable for promoting communication between the social and life sciences.

Extreme Longevity

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Author : Karen Latchana Kenney
language : en
Publisher:
Release Date : 2018

Extreme Longevity written by Karen Latchana Kenney and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with YOUNG ADULT NONFICTION categories.

"Some creatures can outlive humans by centuries. Readers will learn about these extreme examples of longevity in the animal kingdom, how aging happens, and what genes help animals to live so long."--

Longevity Of Mammals In Captivity

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Author : Richard Weigl
language : en
Publisher:
Release Date : 2005

Longevity Of Mammals In Captivity written by Richard Weigl and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Health & Fitness categories.

This publication contains many data of historical and present longevities of captive mammals, some of the data was never published before as well as many of extinct or very rare species and subspecies. 3398 taxa of 25 mammalian (all orders except Shrew-opossums, Order Paucituberculata) have been exhibited in zoos and other institutions. The records provide dates of arrival, birth, movement out of the collection or death dates, showing day, month and year.