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Late-Onset Intermittent Fasting Decreases Aging-Related Frailty
Global average life expectancy continues to rise. As aging increases likelihoods of exhibiting geriatric syndromes (a.k.a. frailty), there is a need for effective anti-aging treatments. Multiple studies have shown the positive effects of dietary restriction (DR) on lifespan in various model organism...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7740766/ http://dx.doi.org/10.1093/geroni/igaa057.411 |
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author | Henderson, Yoko Bithi, Nazmin Link, Christopher Yang, Jie Hine, Christopher |
author_facet | Henderson, Yoko Bithi, Nazmin Link, Christopher Yang, Jie Hine, Christopher |
author_sort | Henderson, Yoko |
collection | PubMed |
description | Global average life expectancy continues to rise. As aging increases likelihoods of exhibiting geriatric syndromes (a.k.a. frailty), there is a need for effective anti-aging treatments. Multiple studies have shown the positive effects of dietary restriction (DR) on lifespan in various model organisms. However, DR is not widely implemented in older adults due to issues with patient compliance and the overall lack of understanding on the effects of DR initiated later in life. Thus, the present study tested whether late-life DR, specifically Every-Other-Day (EOD) fasting, attenuates aging-related frailty using a modified and simplified frailty index in mice. Briefly, 20-month old male and female C57BL/6 mice (human equivalent of 65 years) that had been on a control chow diet ad libitum during adulthood were placed on EOD fasting or ad libitum feeding for 2.5 months. Their frailty index was identified using an indirect calorimeter, glucose tolerance test, novel object place recognition test, forelimb grip strength meter, and rotarod. We found that late-life EOD fasting decreased overall caloric intake in males but not in females. In addition, EOD fasting significantly improved metabolic, musculoskeletal, and cognitive endpoints in male mice, but enhanced only some of these in female mice. Furthermore, EOD fasting improved hydrogen sulfide (H2S) production capacity and its associated sulfhydration signaling in tissues, which positively correlated with improvements in frailty measures. We conclude that EOD fasting implemented late in life can have therapeutic potential in the clinic. We are currently investigating the necessity of H2S production for DR mediated benefits and longevity. |
format | Online Article Text |
id | pubmed-7740766 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-77407662020-12-21 Late-Onset Intermittent Fasting Decreases Aging-Related Frailty Henderson, Yoko Bithi, Nazmin Link, Christopher Yang, Jie Hine, Christopher Innov Aging Abstracts Global average life expectancy continues to rise. As aging increases likelihoods of exhibiting geriatric syndromes (a.k.a. frailty), there is a need for effective anti-aging treatments. Multiple studies have shown the positive effects of dietary restriction (DR) on lifespan in various model organisms. However, DR is not widely implemented in older adults due to issues with patient compliance and the overall lack of understanding on the effects of DR initiated later in life. Thus, the present study tested whether late-life DR, specifically Every-Other-Day (EOD) fasting, attenuates aging-related frailty using a modified and simplified frailty index in mice. Briefly, 20-month old male and female C57BL/6 mice (human equivalent of 65 years) that had been on a control chow diet ad libitum during adulthood were placed on EOD fasting or ad libitum feeding for 2.5 months. Their frailty index was identified using an indirect calorimeter, glucose tolerance test, novel object place recognition test, forelimb grip strength meter, and rotarod. We found that late-life EOD fasting decreased overall caloric intake in males but not in females. In addition, EOD fasting significantly improved metabolic, musculoskeletal, and cognitive endpoints in male mice, but enhanced only some of these in female mice. Furthermore, EOD fasting improved hydrogen sulfide (H2S) production capacity and its associated sulfhydration signaling in tissues, which positively correlated with improvements in frailty measures. We conclude that EOD fasting implemented late in life can have therapeutic potential in the clinic. We are currently investigating the necessity of H2S production for DR mediated benefits and longevity. Oxford University Press 2020-12-16 /pmc/articles/PMC7740766/ http://dx.doi.org/10.1093/geroni/igaa057.411 Text en © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Abstracts Henderson, Yoko Bithi, Nazmin Link, Christopher Yang, Jie Hine, Christopher Late-Onset Intermittent Fasting Decreases Aging-Related Frailty |
title | Late-Onset Intermittent Fasting Decreases Aging-Related Frailty |
title_full | Late-Onset Intermittent Fasting Decreases Aging-Related Frailty |
title_fullStr | Late-Onset Intermittent Fasting Decreases Aging-Related Frailty |
title_full_unstemmed | Late-Onset Intermittent Fasting Decreases Aging-Related Frailty |
title_short | Late-Onset Intermittent Fasting Decreases Aging-Related Frailty |
title_sort | late-onset intermittent fasting decreases aging-related frailty |
topic | Abstracts |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7740766/ http://dx.doi.org/10.1093/geroni/igaa057.411 |
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