Regulation of metabolism in Caenorhabditis elegans longevity

The nematode Caenorhabditis elegans is a favorite model for the study of aging. A wealth of genetic and genomic studies show that metabolic regulation is a hallmark of life-span modulation. A recent study in BMC Biology identifying metabolic signatures for longevity suggests that amino-acid pools may be important in longevity. See research article http://www.biomedcentral.com/1741-7007/8/14 .