Evolution under dietary restriction increases male reproductive performance without survival cost
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چکیده
منابع مشابه
Evolution under dietary restriction increases male reproductive performance without survival cost.
Dietary restriction (DR), a reduction in nutrient intake without malnutrition, is the most reproducible way to extend lifespan in a wide range of organisms across the tree of life, yet the evolutionary underpinnings of the DR effect on lifespan are still widely debated. The leading theory suggests that this effect is adaptive and results from reallocation of resources from reproduction to somat...
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Nutritional environments, particularly those experienced during early life, are hypothesized to affect longevity. A recent cross-taxa meta-analysis found that, depending upon circumstance, average longevity may be increased or decreased by early-life dietary restriction. Unstudied are the effects of diet during development on among-individual variance in longevity. Here, we address this issue u...
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Caloric restriction is the most effective and reproducible dietary intervention known to regulate aging and increase the healthy lifespan in various model organisms, ranging from the unicellular yeast to worms, flies, rodents, and primates. However, caloric restriction, which in most cases entails a 20-40% reduction of food consumption relative to normal intake, is a severe intervention that re...
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Background and Objectives: Apoptosis plays a key role in pathogenesis of various cardiovascular diseases due to loss of terminally differentiated cardiac myocytes. Therefore, the aim of this study was to investigate effects of combined dietary restriction and aerobic training on indices of myocardial apoptosis in male rats. Materials and Methods: In this study, 32 three-month-old male rats wer...
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There is increasing evidence that exposure to stress during development can have sustained effects on animal phenotype and performance across life-history stages. For example, developmental stress has been shown to decrease the quality of sexually selected traits (e.g. bird song), and therefore is thought to decrease reproductive success. However, animals exposed to developmental stress may com...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society B: Biological Sciences
سال: 2016
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2015.2726