Can oxygen anosmia extend lifespan?

Can oxygen anosmia extend lifespan?

Mitochondrial metabolites extend lifespan

Disruption of mitochondrial respiration in the nematode Caenorhabditis elegans can extend lifespan. We previously showed that long-lived respiratory mutants generate elevated amounts of α-ketoacids. These compounds are structurally related to α-ketoglutarate, suggesting they may be biologically relevant. Here, we show that provision of several such metabolites to wild-type worms is sufficient t...

Antimicrobial peptides extend lifespan in Drosophila

Antimicrobial peptides (AMPs) are important defense molecules of the innate immune system. High levels of AMPs are induced in response to infections to fight pathogens, whereas moderate levels induced by metabolic stress are thought to shape commensal microbial communities at barrier tissues. We expressed single AMPs in adult flies either ubiquitously or in the gut by using the inducible GeneSw...

Bursts of Reprogramming: A Path to Extend Lifespan?

In a thought-provoking study, Ocampo et al. show that the cyclic expression of stem cell reprogramming factors in vivo increases the lifespan of a mouse model of premature aging and provides health benefits to chronologically old, normal mice.

Malate and Fumarate Extend Lifespan in Caenorhabditis elegans

Malate, the tricarboxylic acid (TCA) cycle metabolite, increased lifespan and thermotolerance in the nematode C. elegans. Malate can be synthesized from fumarate by the enzyme fumarase and further oxidized to oxaloacetate by malate dehydrogenase with the accompanying reduction of NAD. Addition of fumarate also extended lifespan, but succinate addition did not, although all three intermediates a...