Among 2,525 adults followed for a median of 80 months, 22.3% had cortisol test changes that altered their diagnosis, most within three years.Among 2,525 adults followed for a median of 80 months, 22.3% had cortisol test changes that altered their diagnosis, most within three years.
In fruit flies, 50 micrograms per milliliter was associated with longer life in adult females and two subsequent female generations, but embryonic exposure shortened…In fruit flies, 50 micrograms per milliliter was associated with longer life in adult females and two subsequent female generations, but embryonic exposure shortened adult life.
Experiments in male fruit flies found that lowering a protein involved in protein regulation impaired flight and altered a limited set of muscle proteins.Experiments in male fruit flies found that lowering a protein involved in protein regulation impaired flight and altered a limited set of muscle proteins.
Experiments with altered genes revealed shifts in membrane fats and showed that continued production of the fat was needed for egg development.Experiments with altered genes revealed shifts in membrane fats and showed that continued production of the fat was needed for egg development.
What changedWorms with reduced phosphatidylcholine production had more long-chain polyunsaturated fats and fewer shorter saturated fats in their membranes
The catchThe experiments did not measure whether membrane changes themselves lengthened lifespan
Rats with an inherited retinal disease received nicotinamide mononucleotide for up to four weeks, with less retinal thinning than controls given water without the…Rats with an inherited retinal disease received nicotinamide mononucleotide for up to four weeks, with less retinal thinning than controls given water without the supplement.
A laboratory comparison of male mice aged 6 to 24 months, with five per age group, linked the shift to aging across several organs.A laboratory comparison of male mice aged 6 to 24 months, with five per age group, linked the shift to aging across several organs.