Interventions

  • name effect species mean median maximum
    Hsp22 transposition Animals that do not express Hsp22 (due to a transposition into its transcriptional starting site) have a 40% decrease in lifespan, exhibit a 30% decrease in locomotor activity and are sensitive to mild stress [20036725]. Fly -40
    SCH9 Transposition Transposon-mediated mutagenesis of SCH9, which encodes for a serine threonine kinase homologous to Akt/PKB, increases resistance to oxidants and thermal stress as well as extends chronological lifespan by 30% [11292860]. Yeast +30
    CYR1 transposition Transposon-mutagenized CYR1 increases resistance to oxidants and extends chronological lifespan by up to 90%. Stress-resistance transcription factors Msn2/Msn4 and protein kinase Rim15 are required for this lifespan extension [11292860]. Yeast +300
    sgg transposition Several insertions of P-based vectors in the structural part of sgg are associated with alterations of male and female lifespan [22661237]. Fly
    insc transposition insc disruption through an insertion of the P{EPgy2} vector in ts structural part prolongs female lifespan [22661237]. Fly
    esg transposition Disruption of esg by insertion of the P{GT1} vector 300 bp downstream of its structural part increases male and female lifespan [22661237]. Fly
    aPKC transposition Insertion of a P-based vectors in the structural part of aPKC increase male and female lifespan [22661237]. Fly
    Indy mutation Flies heterozygotic for a disruption in Indy gene have extended mean (87-92%) and maximum (45%) lifespan. Homozygotes for the disruption show only a 10 - 20% increase in mean lifespan [11118146]. Heterozygous insertion of a p-element in the non-coding region of Indy locus leads to a reduction in Indy mRNA expression and causes a significant median lifespan extension in male and female by about 29% and 34%, respectively. At normal or high calorie conditions Indy heterozygote mutants have a significant lifespan extension, but under low calorie conditions, Indy heterozygous mutants have minimal median lifespan extension. Reduction of calorie content from high to normal calorie condition results in 19% decline in Indy mRNA and from normal to low calorie condition results in additional 9% decrease in Indy mRNA. Reduction of calorie content from high to normal calorie conditions in heterozygous Indy mutants leads to 20% reduction in Indy mRNA expression without any additional decrease upon further reduction to low calorie food. Maximum lifespan extension is associated with Indy mRNA levels between 25 - 75% of normal. Long-lived heterozygous Indy mutants on high-calorie food and normal wild-type on low-calorie food have several phenotypes in common: 50 - 60 % reduced mRNA expression levels of Ilp2, Ilp3 and Ilp 5; similar high percentage of anti-FOXO-positive nuclei in fat body cells; higher sensitivity to starvation; do not gain weight; similar decrease in triglycerides and fat storage; normal food intake [19470468]. Mutations in Indy dramatically extend lifespan without a loss in fertility, physical activity, flight velocity or metabolic rate [11118146; 12626742]. Indy encodes a high-affinity dicarboxylate/citrate plasma membrane transporter found most abundantly in adult fat body, oenocytes and midgut cells, the primary sites of intermediary metabolism [12391301]. Indy mutation alters metabolism in a manner similiar to DR and mutants have several phenotypes with long-lived DR files in common, including decreases insulin-like signaling, lipid storage, weight gain, and resistance to starvation, and an increase in spontaneous physical activity [19470468]. Of the Indy206 and Indy302 mutation only one of the two has lower mRNA levels and both do not extend lifespan of female flies in any genetic background. In original genetic background only Indy mutation associated with altered RNA expression extends the lifespan of males. This effect is abolished by back-crossing into standard out-bred genetic backgrounds and is associated with an unidentified locus on the X chromosome. Original Indy line with long-lived males is infected by the cytoplasmic Wolbachia. Longevity of Indy males disappear after tetracycline clearance of this endosymbiont [17571923]. Fly +10 to +92 +45
    • 8 interventions
    Interventions are an extension of GenAge and GenDR.