longevity
- Nest predation and adult mortality relationships with post-natal metabolic rates and growth among songbird species
Summary: Does predation increase post-natal metabolism and growth with consequences for adult mortality, thus creating an evolutionary conflict among species? The fact that these sources of mortality show opposite correlations with growth and metabolism may explain how the conflict is avoided.
- Effects of membrane fatty acid composition on cellular metabolism and oxidative stress in dermal fibroblasts from small and large breed dogs
Summary: Fibroblasts from small breed dogs and from both small and large breed dogs treated with oleic acid to decrease membrane saturation have lower maximal and basal oxygen consumption rates, respectively – traits associated with longer lifespans.
- Resistance to DNA damage and enhanced DNA repair capacity in the hypoxia-tolerant blind mole rat Spalax carmeli
Highlighted Article: The cells of the blind mole rat Spalax carmeli show enhanced DNA repair capacity and resistance to several genotoxic agents, which may contribute to its longevity and reduced cancer rates.
- Current versus future reproduction and longevity: a re-evaluation of predictions and mechanisms
Summary: This paper critically reviews the effects and physiological mechanisms that reproduction could have on bioenergetic capacity to better understand how a reproductive event could affect future reproduction and/or survival.
- Reversibility of developmental heat and cold plasticity is asymmetric and has long-lasting consequences for adult thermal tolerance
Summary: Using Drosophila melanogaster, we show how developmental plasticity of cold tolerance is completely reversible in the adult stage, while adult acclimation in heat tolerance is constrained by developmental temperature.