Lifespan and reproduction in Drosophila: New insights from nutritional geometry
Kwang Pum Lee,Stephen J. Simpson,Fiona J. Clissold,Robert C. Brooks,J. William O. Ballard,Phil W. Taylor,Nazaneen Soran,David Raubenheimer +7 more
TLDR
The use of recent techniques in nutrition research to quantify the detailed relationship between diet, nutrient intake, lifespan, and reproduction in Drosophila melanogaster indicates a role for both direct costs of reproduction and other deleterious consequences of ingesting high levels of protein.Abstract:
Modest dietary restriction (DR) prolongs life in a wide range of organisms, spanning single-celled yeast to mammals. Here, we report the use of recent techniques in nutrition research to quantify the detailed relationship between diet, nutrient intake, lifespan, and reproduction in Drosophila melanogaster. Caloric restriction (CR) was not responsible for extending lifespan in our experimental flies. Response surfaces for lifespan and fecundity were maximized at different protein–carbohydrate intakes, with longevity highest at a protein-to-carbohydrate ratio of 1:16 and egg-laying rate maximized at 1:2. Lifetime egg production, the measure closest to fitness, was maximized at an intermediate P:C ratio of 1:4. Flies offered a choice of complementary foods regulated intake to maximize lifetime egg production. The results indicate a role for both direct costs of reproduction and other deleterious consequences of ingesting high levels of protein. We unite a body of apparently conflicting work within a common framework and provide a platform for studying aging in all organisms.read more
Citations
More filters
Book ChapterDOI
Dietary and Caloric Restriction for Human Health
R.J. Bloomer,S.R. Lee +1 more
TL;DR: A brief overview of the scientific literature relevant to caloric and dietary restriction is provided, with a particular focus on improving human health and longevity.
Journal ArticleDOI
Geometric analysis of macronutrient selection and balancing in the superworm, Zophobas atratus
Yongsoo Choi,Kwang Pum Lee +1 more
TL;DR: The geometric framework is used to explore the behavioural and physiological regulation of protein and carbohydrate regulation in Z. atratus larvae and represents the most comprehensive analysis of macronutrient regulation in this beneficial insect.
Journal ArticleDOI
Selection on female reproductive schedules in the marula fly, Ceratitis cosyra (Diptera: Tephritidae) affects dietary optima for female reproductive traits but not lifespan
TL;DR: In this paper , upward selection on the age of female oviposition, in comparison with laboratory adapted control flies, affects the sex-specific relationship between protein and carbohydrate intake and life-history traits including lifespan, female lifetime egg production and daily egg production.
Posted ContentDOI
Identifying the proximate mechanisms that generate variation in nutritional plasticity for fecundity in Drosophila melanogaster
Andre Neves Alves,Avishikta Chakraborty,Mia Wansbrough,Gregory M. Walter,Matthew D.W. Piper,Carla M. Sgrò,Christen K. Mirth +6 more
TL;DR: In this article , the authors used a Drosophila melanogaster isogenic panel to characterize nutritional plasticity for fecundity by feeding flies diets differing in their yeast content and counting the number of eggs produced.
References
More filters
Book
The Retardation of Aging and Disease by Dietary Restriction
Richard Weindruch,Roy L. Walford +1 more
Journal ArticleDOI
Genetic pathways that regulate ageing in model organisms
Leonard Guarente,Cynthia Kenyon +1 more
TL;DR: Genetic studies in genetically tractable model organisms established that ageing is indeed regulated by specific genes, and allowed an analysis of the pathways involved, linking physiology, signal transduction and gene regulation.
Journal ArticleDOI
Regulation of Lifespan in Drosophila by Modulation of Genes in the TOR Signaling Pathway
TL;DR: It is shown that inhibition of TOR signaling pathway by alteration of the expression of genes in this nutrient-sensing pathway, which is conserved from yeast to human, extends lifespan in a manner that may overlap with known effects of dietary restriction on longevity.
Journal ArticleDOI
Calorie restriction, SIRT1 and metabolism: understanding longevity
Laura Bordone,Leonard Guarente +1 more
TL;DR: Recent findings that are beginning to clarify the mechanisms by which CR results in longevity and robust health, which might open new avenues of therapy for diseases of ageing are summarized.
Journal ArticleDOI
Calorie restriction and aging: review of the literature and implications for studies in humans
TL;DR: The absence of adequate information on the effects of good-quality, calorie-restricted diets in nonobese humans reflects the difficulties involved in conducting long-term studies in an environment so conducive to overfeeding.
Related Papers (5)
The Ratio of Macronutrients, Not Caloric Intake, Dictates Cardiometabolic Health, Aging, and Longevity in Ad Libitum-Fed Mice.
Samantha M. Solon-Biet,Aisling C. McMahon,J. William O. Ballard,Kari Ruohonen,Lindsay E. Wu,Victoria C. Cogger,Alessandra Warren,Xin Huang,Nicolas Pichaud,Richard G. Melvin,Rahul Gokarn,Mamdouh Khalil,Nigel Turner,Gregory J. Cooney,David A. Sinclair,David A. Sinclair,David Raubenheimer,David G. Le Couteur,Stephen J. Simpson +18 more