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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  • symbol name observation species
    sir-2.4 yeast SIR related 2.4 RNA interference against sir-2.4 or overexpression of SIR-2.4 do not change the mean or maximum lifespan. Neither sir-2.4 RNAi nor SIR-2.4 overexpression affects the increased lifespan of daf-2(e1370) mutants [Tishkoff et al. 2012]. Nematode
    acdh-12 Acyl CoA DeHydrogenase 12 RNA interference of acdh-12 starting at hatching or only during the adulthood significantly decreases eat-2 lifespan without affecting the lifespan of wild-type [22810224]. Nematode
    ced-3 CEll Death abnormality RNA interference of ced-3 in adulthood results in a 19% increase in mean lifespan [17411345]. The ced-3(n1286) allele has no effect on lifespan, although the transgenic animals are defective in apoptosis [12136014]. Nematode
    dod-19 Downstream Of DAF-16 (regulated by DAF-16) RNA interference of dod-19 extends lifespan by 28%. dod-19 is differentially transcribed in daf-16 and daf-2 RNAi animals [12845331]. Nematode
    fbxa-121 F-box A protein RNA interference of fbxa-121 in adulthood shortens the extended lifespan of daf-2(mu150) mutants. Only a negligible or small reduction in the lifespan of wild-type worms was observed in knockouts [17392428]. Nematode
    pod-2 Polarity and Osmotic sensitivity Defect 2 RNA interference of pod-2 starting at hatching or only during the adulthood significantly decreases eat-2 lifespan without affecting the lifespan of wild-type. POD-2 is downregulated in eat-2 [22810224]. Nematode
    pyc-1 PYruvate Carboxylase 1 RNA interference of pyc-1 starting at hatching or only during the adulthood significantly decreases eat-2 lifespan without affecting the lifespan of wild-type. PYC-1 is downregulated in eat-2 mutants [22810224]. Nematode
    sbds-1 Shwachman-Bodian-Diamond Syndrome protein homolog 1 RNA interference of sbds-1 decreases median lifespan by 24% in daf-2 mutants [18006689]. RNAi knockdown of sbds-1 starting at hatching or only during the adulthood significantly decreases lifespan of eat-2 without affecting wild-type lifespan. SBDS-1 are elevated in eat-2 mutants. Increased content of SBDS-1 is, at least partially, required for lifespan-extension by DR [22810224]. Nematode
    spg-7 human SPG (spastic paraplegia) 7 RNA interference of spg-7 in adulthood results in a 23% increase in mean lifespan [17411345]. Nematode
    unc-52 UNCoordinated 52 RNA interference of unc-52 in adulthood extends mean lifespan by 11% [17411345]. RNAi knockdown of unc-52 starting at hatching or only during the adulthood significantly decreases lifespan of eat-2 without affecting wild-type lifespan. UNC-52 levels are elevated in eat-2 mutants. Increased content of UNC-52 is, at least partially, required for lifespan-extension by DR [22810224]. Nematode
    acdh-1 Acyl CoA DeHydrogenase 1 RNAi knockdown of acdh-1 starting at hatching or only during the adulthood significantly decreases lifespan of eat-2 without affecting wild-type lifespan. ACDH-1 significantly upregulated in eat-2. Increased content of ACDH-1 is, at least partially, required for lifespan-extension by DR [22810224]. Nematode
    cul-1 CULlin 1 RNAi of cul-1 decreases lifespan of daf-2 mutant, but not of wild-type or glp-1 mutant. The CUL-1 complex functions in postmitotic, adult somatic tissues of insulin/insulin-like growth factor-1-signaling mutants to enhance longevity. It may act, at least in part, by promoting the transcriptional activity of DAF-16/FOXO [17392428]. Nematode
    ins-22 INSulin related 22 RNAi of ins-22 has no effect on lifespan. ins-22 is differentially transcribed in daf-16 and daf-2 RNAi animals [12845331]. Nematode
    sip-1 Stress Induced Protein 1 RNAi of sip-1 has no effect on wild-type adult lifespan, but slightly shortens the long lifespan of age-1(hx546) mutant animals [14668486]. Nematode
    eat-10 EATing: abnormal pharyngeal pumping 10 The eat-10(ad606) allele exhibits no significant extension of lifespan [9789046], but displays defects in pharyngeal feeding behaviour [8462849]. Nematode
    eat-5 EATing: abnormal pharyngeal pumping 5 The eat-5(ad464) allele has no significant effect on lifespan [9789046], although it displays defects in pharyngeal feeding behaviour [8462849]. Nematode
    fog-1 Feminization Of Germline The fog-1(q180) allele has no effect on lifespan [11799246]. fog-1 mutants are sterile and make oocytes but not sperm [2341035]. Nematode
    fog-3 Feminization Of Germline 3 The fog-3(q470) allele has no effect on lifespan [11799246]. In fog-3 mutant animals cells that would normally become sperm differentiate into oocytes [7713418]. Nematode
    unc-47 UNCoordinated 47 The unc-47(e367) allele has no significant effect on lifespan [9789046]. unc-47 mutants are uncoordinated [4366476]. Nematode
    unc-49 UNCoordinated 49 The unc-49(e382) allele has no significant effect on lifespan [9789046]. unc-49 mutants are uncoordinated [4366476]. Nematode
    unc-79 UNCoordinated The unc-79(e1068) allele has no significant effect on lifespan [9789046]. unc-78 mutants display irregular movement [4366476]. Nematode
    unc-80 UNCoordinated The unc-80(e1069) allele has no significant effect on lifespan [9789046]. unc-80 mutant displays irregular movement [4366476] Nematode
    (-)-epidcatechin Treatment with (-)-epidcatechin do no extend C. elegans lifespan [20717869]. Nematode
    Vitamin C Treatment with 1 mM vitamin C has no effect on lifespan of wild-type, but significantly shortens the lifespan of both isp-1 and muo-6 mutants [21151885]. Supplementation with vitamin C normalizes the median lifespan of wnr-1 and mir-124 mutants, which both exhibit premature aging [23075628]. Nematode
    NAC N-acetyl cysteine Treatment with 10 mM of NAC has no effect on the lifespan of wild-type, but fully abolishes the increased longevity of nuo-6 and severly limits that of isp-1. At high concentration (> 10-15 nM) NAC can be become deleteroius even on the wild-type [21151885]. Nematode
    Factors are an extension of GenAge and GenDR.

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