Cellular replicative capacity correlates primarily with species body mass not longevity

@article{Lorenzini2005CellularRC,
  title={Cellular replicative capacity correlates primarily with species body mass not longevity},
  author={A. Lorenzini and M. Tresini and S. Austad and V. Cristofalo},
  journal={Mechanisms of Ageing and Development},
  year={2005},
  volume={126},
  pages={1130-1133}
}
Although the limited replicative capacity of human fibroblasts in culture is frequently used as a model for aging, a question of major interest is whether the relationship between in vitro fibroblast proliferative capacity and species longevity is primary or secondary to a relationship with species body size. In this report we establish that body mass is the primary correlative of proliferative potential rather than species life-span. 

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