Killifish Offer a Fast, Genetically Tractable Model for Studying Aging
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In a Cold Spring Harbor Laboratory Leading Strand lecture, Itamar Harel made the case that aging, unlike development, is a long-range process shaped by both genetic and environmental inputs, and therefore offers more room for intervention. He presented the African killifish as a model organism whose compressed life history lets researchers tackle lifespan questions in a short time frame, with easier mating, egg collection and CRISPR line building than in mice. His findings include lifespan extension achieved by fine-tuned metabolism, seen mainly in males and involving a key enzyme that regulates ATP synthesis, as well as sexually dimorphic responses to fasting that nonetheless converge on similar outcomes. The lecture stands as a single presentation; how the killifish platform spreads through the aging field remains an open question.
Written by a model from the reports · updated 2 hours ago
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- youtube.comItamar Harel presents killifish as genetic model for aging at CSHL lecture
Itamar Harel argued in a CSHL Leading Strand lecture that aging, unlike development, is a long-range process shaped by genetic and environmental inputs and so offers more room for intervention. He described killifish as a model whose compressed life history allows lifespan questions to be studied in a short window, with easier mating, egg collection and CRISPR line building than mice. His findings include lifespan extension through fine-tuned metabolism, mainly in males and involving a key enzyme regulating ATP synthesis, and sexually dimorphic responses to fasting that yield similar outcomes.
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