Interventions

  • Species: + -
  • name effect species mean median maximum
    Akh knockdown Knockdown of the adipokinetic hormone (Akh) by RNAi (with an RU486-inducible and ubiquitously expressing Actin 5C-GS Gal4 strain) does not by itself affect lifespan, but significantly inhibits the DR-dependent increase in lifespan across a range of yeast concentrations in both females and males. While control females and males exhibit a 113%/22% increase in lifespan under DR, upon Akh inhibition there was a significant reduction in lifespan extension with DR (52%/5%). Global Akh knockdown reduces starvation resistance by 24% upon DR, but no significant change upon AL. Also Akh RNAi repressed the DR-dependent increase in cold-stress resistance. Fat body and neuronal-specific inhibition of Akh by using RU486-inducible S(1)106-GS-Gal4 and Elav-GS-Gal4 enhancer traps, respectively, does not reduce lifespan extension upon DR. But, muscle-specific inhibition of Akh using RU486-inducible muscle enhancer trap (Mhc-GS-Gal4) reduces the DR-dependent increase in lifespan. While control exhibit a 47.2% lifespan extension, animals with muscle-specific Akh inhibition fails to result in any increase upon DR (i.e. completely blocked the DR lifespan extension). Muscle-specific Akh inhibition diminishes the increase in triglyceride synthesis and breakdown present normally under DR. A significant reduction in lifespan extension also occurs with a noninducible muscle driver (Mhc-Gal4). Controls on DR exhibit significant higher levels of spontaneous activity compared to Akh RNAi-inhibited animals at all ages. Akh inhibition reduces the protective effect of DR on age-related decline in muscle function/activity [22768842]. Fly
    Sod mutation Sod mutant flies display infertility and a reduction in lifespan [2539600]. Fly
    sun mutation sun mutations increases lifespan and resistance to oxidative stress [15133470] Fly
    CG4389 knockdown Muscle specific RNAi knockdown of CG489 which reduces its mRNA levels by 25-35%, significantly reduces the DR-dependent lifespan extension. CG4389 RNAi animals exhibit only 20% increase while controls display an lifespan increase by 123% upon DR [22768842]. Fly
    Surf1 knockdown Surf1 knockdown results in larval lethality. However, knockdown in the central nervous system (CNS) not only bypasses the larval lethality but it results in an increase in maximum lifespan of about 20-30% [16172499]. Fly +20 to +30
    CG7834 knockdown Muscle specific RNAi knockdown of CG7834 which reduces its mRNA levels by 25-35%, significantly reduces the DR-dependent lifespan extension. CG7834 RNAi animals exhibit only a 14% increase compared to the 55% lifespan-increase in controls upon DR [22768842]. Fly
    Fat-body specific Akh knockdown Fat-body specific Akh RNAi results in increased spontaneous activity and a small but significant increase in lifespan upon AL [22768842]. Fly
    Akt1 mutation Akt1 homozygotous have a significantly decreased lifespan [11292874]. Heterozygous Akt1 animals form dwarfs [11292874]. Fly
    Atg7 knockout Knockouts of Atg7 are short-lived with a 30% reduction in maximum lifespan and are hypersensitive to nutrient and oxidative stress [18056421; 19550147]. Fly -30
    dys knockout Loss of dys function in the heart leads to an age-dependent disruption of the myofibrillar organization within the myocardium as well as to alterations in cardiac performance. Mesodermal dys knockout results in a morderate maximum lifespan reduction (13%), but not when exclusively targeted to the heart. In contrast, half of the transheteozygous DysExel618/Dyskx43 deficiency flies die at 29 days compared to 63 days in controls. This indicates that a moderate dye loss-of-function in all muscles, but not in just the heart, reduces the normal lifespan [18221418]. Fly -13
    dys RNAi dys RNAi-mediated knockdown in the mesoderm shortens lifespan [18221418]. Fly
    E(z) mutation Flies heterozygous for the protein null E(z)63 or the catalytically inactive E(z)731 mutation that are progeny of an out-cross to an Oregon-R (O-R) wild-type strain exhibit a substantially greater median lifespan than the O-R control (71% and 76%, respectively). When derived from an out-cross to a longer-lived Canton-S (C-S) wild-type strain, the median lifespan of E(z)63 heterozygous is 33% longer than the C-S control [20018689]. Fly +33 to +76
    puc mutation Heterozygous loss-of-function mutations in puc (either pucA241.1 or pucE69) significantly extend median and maximum lifespan and increase resistance to oxidative stress. Heterzyogosity for puc only modestly extends lifespan in animals carrying a hypomorphic allele of the JNK kinase hep [14602080]. puc heterzyogotes do not differ signficantly from wild-type for body size, reproductive activity or developmental timing, but exhibit increased resistance to oxidative stress and starvation [14602080]. Fly
    elav mutation elav mutation significantly decreases the lifespan. Median lifespan in males is 66% lower [20589912]. Fly
    Ablation of median neurosecretary cells Flies with an ablation of median neurosecretary cells (which eliminates Ilp2 expression) exhibit a significant increase in mean and maximum lifespan over that of control flies and an increase to oxidative stress and starvation. The mutants also exhibit increased storage of lipid and carbohydrate, reduced fecundity, and reduced tolerance of heat and cold [15708981]. The median and maximum lifespan of females is increased by 33.5% and 40%, respectively. In males the median and maximum lifespan is increased by 10.5% and 27%, respectively [15708981]. Fly +10.5 to +33.5 +27 to +40
    aPKC transposition Insertion of a P-based vectors in the structural part of aPKC increase male and female lifespan [22661237]. Fly
    Ilp2 RNAi Ilp2 RNA interference results in a 24% to 47% increase in median lifespan [19005568]. Fly +24 to +47
    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
    insc transposition insc disruption through an insertion of the P{EPgy2} vector in ts structural part prolongs female lifespan [22661237]. Fly
    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
    Lnk mutation Loss of Lnk function results in increased median (14% in females and 17.5 in males) and maximum lifespan, reduced female fecundity and improves survival under conditions of oxidative stress and starvation. Heterozygousity does not result in any significant differences in lifespan in either males or females. Moreover, lifespan extension in one of the female homozygous mutant is fully rescued by the introduction of a Lnk genomic rescue construct [20333234]. Fly -14 to -17.5
    Mlp84B RNAi RNA interference of Mlp84B specifically in the heart results in bradycardia and heart rythm abnormalities as well as a shorter mean lifespan in males but not in females [18083727]. Fly
    Nlaz mutation Absence of Nlaz, which is homologous to ApoD, results in a reduced lifespan in both sexes. Median lifespan is 30.8% and 22.5% lower in females and males, respectively. Maximum lifespan is reduced by 12% and 30% in females and males [21376794]. Fly -22.5 to -30.8 -12 to -30
    Prx5 mutation dprx5(-/-) null mutants are comparatively more susceptible to oxidative stress, have higher incidence of apoptosis, and a shortened mean lifespan, but thee is no significant difference in maximum lifespan (10% survival) [21826223]. Fly
    Rbp9 mutation Rbp9 mutation significantly decreases longevity with a 33% reduction in median lifespan of males [20589912]. Fly -33
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    • 25 of 118 interventions
    Interventions are an extension of GenAge and GenDR.