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Microbiological Foundations to Optimise Intrinsic Capacity and Promote Healthy Ageing: An Integration Into the Life Course Approach

4 months 1 week ago
The World Health Organization (WHO) defines healthy ageing as the process of developing and maintaining functional ability, comprising an individual's intrinsic capacity, the environment and the interaction of the two. The framework is based on a positive approach to ageing, giving value to the resources individuals can rely upon as they age and that they can build their physical, mental and social health, and overall well-being. To promote healthy ageing, it is important to understand better...
Christoph Benner

A lysosomal surveillance response to stress extends healthspan

4 months 1 week ago
Lysosomes are cytoplasmic organelles central for the degradation of macromolecules to maintain cellular homoeostasis and health. However, how lysosomal activity can be boosted to counteract ageing and ageing-related diseases remains elusive. Here we reveal that silencing specific vacuolar H^(+)-ATPase subunits (for example, vha-6), which are essential for intestinal lumen acidification in Caenorhabditis elegans, extends lifespan by ~60%. This longevity phenotype can be explained by an adaptive...
Terytty Yang Li

A host organelle integrates stolen chloroplasts for animal photosynthesis

4 months 1 week ago
Eukaryotic life evolved over a billion years ago when ancient cells engulfed and integrated prokaryotes to become modern mitochondria and chloroplasts. Sacoglossan "solar-powered" sea slugs possess the ability to acquire organelles within a single lifetime by selectively retaining consumed chloroplasts that remain photosynthetically active for nearly a year. The mechanism for this "animal photosynthesis" remains unknown. Here, we discovered that foreign chloroplasts are housed within novel,...
Corey A H Allard