Cell and Molecular Aging

  • Bruce Robert Troen
  • Vincent Joseph Cristofalo


Discussions of aging invariably begin by establishing a satisfactory definition for the term aging and the related word senescence. Although the term aging is commonly used to refer to postmaturational processes that lead to diminished homeostasis and increased organismic vulnerability, the more correct term here is senescence. Aging can refer to any time-related process. In this chapter we use senescence and aging interchangeably. Normal aging involves inexorable and universal physiologic changes, whereas usual aging includes age-related diseases. For example, menopause and the decline in renal function represent aspects of normal aging. In contrast, coronary artery disease is an example of usual aging and is not found in all older persons. This approach to aging can utilize a conceptual framework that identifies intrinsic (developmental-genetic) versus extrinsic (stochastic) causes. Accumulating evidence increasingly stresses the importance of both.


Human Fibroblast Senescent Cell Replicative Senescence Werner Syndrome Molecular Aging 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Bruce Robert Troen
  • Vincent Joseph Cristofalo

There are no affiliations available

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