The record for mouse life span is held by growth hormone receptor knockout lineages, approaching a 70% gain, but a lot of that increase is due to early life effects. These animals are very small in comparison to their peers. In comparison, growth hormone receptor knockout in adulthood has a greater impact on female mice than on male mice, and the gain in life span is much reduced. In today’s open access paper, researchers demonstrate another approach, generating a lineage of mice in which growth hormone receptor is only disabled in fat tissue. Again, the outcomes are different in male and female mice, and smaller than those produced by full knockout.
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Growth Hormone Receptor Knockout in Adipose Tissue Extends Life in Mice
The record for mouse life span is held by growth hormone receptor knockout lineages, approaching a 70% gain, but a lot of that increase is due to early life effects. These animals are very small in comparison to their peers. In comparison, growth hormone receptor knockout in adulthood has a greater impact on female mice than on male mice, and the gain in life span is much reduced. In today’s open access paper, researchers demonstrate another approach, generating a lineage of mice in which growth hormone receptor is only disabled in fat tissue. Again, the outcomes are different in male and female mice, and smaller than those produced by full knockout.
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