[HTML][HTML] Insulin/insulin-like growth factor signaling in C. elegans

CT Murphy, PJ Hu - WormBook: The Online Review of C. elegans …, 2018‏ - ncbi.nlm.nih.gov
The C. elegans insulin/IGF-1 signaling (IIS) pathway connects nutrient levels to metabolism,
growth, development, longevity, and behavior. This fundamental pathway is regulated by …

Senescence in natural populations of animals: widespread evidence and its implications for bio-gerontology

DH Nussey, H Froy, JF Lemaitre, JM Gaillard… - Ageing research …, 2013‏ - Elsevier
That senescence is rarely, if ever, observed in natural populations is an oft-quoted fallacy
within bio-gerontology. We identify the roots of this fallacy in the otherwise seminal works of …

Why do we age?

TBL Kirkwood, SN Austad - Nature, 2000‏ - nature.com
The evolutionary theory of ageing explains why ageing occurs, giving valuable insight into
the mechanisms underlying the complex cellular and molecular changes that contribute to …

Sirtuin activators mimic caloric restriction and delay ageing in metazoans

JG Wood, B Rogina, S Lavu, K Howitz, SL Helfand… - Nature, 2004‏ - nature.com
Caloric restriction extends lifespan in numerous species. In the budding yeast
Saccharomyces cerevisiae this effect requires Sir2 (ref.), a member of the sirtuin family of …

The redox stress hypothesis of aging

RS Sohal, WC Orr - Free Radical Biology and Medicine, 2012‏ - Elsevier
The main objective of this review is to examine the role of endogenous reactive
oxygen/nitrogen species (ROS) in the aging process. Until relatively recently, ROS were …

[HTML][HTML] The plasticity of aging: insights from long-lived mutants

C Kenyon - Cell, 2005‏ - cell.com
Mutations in genes affecting endocrine signaling, stress responses, metabolism, and
telomeres can all increase the life spans of model organisms. These mutations have …

Changes in ferrous iron and glutathione promote ferroptosis and frailty in aging Caenorhabditis elegans

NL Jenkins, SA James, A Salim, F Sumardy, TP Speed… - Elife, 2020‏ - elifesciences.org
All eukaryotes require iron. Replication, detoxification, and a cancer-protective form of
regulated cell death termed ferroptosis, all depend on iron metabolism. Ferrous iron …

Functionally significant insulin-like growth factor I receptor mutations in centenarians

Y Suh, G Atzmon, MO Cho, D Hwang… - Proceedings of the …, 2008‏ - National Acad Sciences
Rather than being a passive, haphazard process of wear and tear, lifespan can be
modulated actively by components of the insulin/insulin-like growth factor I (IGFI) pathway in …

The quest for genetic determinants of human longevity: challenges and insights

K Christensen, TE Johnson, JW Vaupel - Nature Reviews Genetics, 2006‏ - nature.com
Twin studies show that genetic differences account for about a quarter of the variance in
adult human lifespan. Common polymorphisms that have a modest effect on lifespan have …

Survival costs of reproduction in Drosophila

T Flatt - Experimental gerontology, 2011‏ - Elsevier
Reproduction shortens lifespan in practically all organisms examined so far, but the
underlying mechanisms remain largely unknown to date. Here I review what evolutionary …