Denigma

Factors

We need to know every factor which determines lifespan.

Lifespan factors often but not always originate from defined genetic elements. They are not just genes, by definition they can be anything for which a Classifications schema can be build for that is related to the regulation of lifespan, such entities may include Single-Nucleotide Polymorphism, transcript variants, proteins and their complexes, compounds (i.e. small molecules like metabolites and drugs), etc. A factor should be based on a defined molecular entity or genomic position and been classified. It shall be highly flexible and scalable Concept.

While individual lifespan factors within each species or precise defined molecular entities will be captured within the Lifespan App, Data Entries of the Data App may summarize for instance the relevance of each factor class (e.g. homologous group; chemical derivate of related structure and properties, etc.) as well as draw overall conclusions. o

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  • Species: + -
    Budding yeast « 
  • Classifications: + -
    Gero‑Suppressant «  DR‑Essential Paralog (1)   No Age Effect (2)  
  • Types: + -
    • symbol name observation species
    — Hesperidin Hesperidin derived from the Citrus genus extends replicative lifespan at doses of 5 and 10 microMolar. Hesperdin inihibts ROS and UTH1 gene expression, but increases Sir2 and SOD gene expression. UTH1 and SKN7 are involved in lifespan extension mediated by hesperidin [22484922]. Budding yeast
    HDA1 Histone DeAcetylase 1 Deletion of HDA1 has no effect on longevity under AL, but acts synergistically with 0.1% glucose restriction to increase replicative lifespan [12213553]. Deletion of HDA1 leads to a slightly increased chronological lifespan [19801973]. Deletion of HDA1 has no effect on the wild-type lifespan in the short-lifespan of YSK771 strain, but suppresses the short-lifespan of SIR3 mutants [10512855]. Budding yeast
    CYT1 cytochrome c1 Deletion of CYT1 increases replicative lifespan by 15% in the alpha strain and decreases replicative lifespan by 20% in a strain. Deletion of CYT1 decreases replicative lifespan and cancels out replicative lifespan extension by HAP4 overexpression. Initially, it was shown that deletion of CYT1 also prevents lifespan extension by 0.5% glucose restriction [12124627], but later it was shown that either 0.5 or 0.05 % glucose restriction increases replicative lifespan of cyt1Delta cells [16311627]. Budding yeast
    • 3 factors
    Factors are an extension of GenAge and GenDR.

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