Insulin-like growth factors (IGF) are pleiotrophic polypeptides affecting a
ll aspects of growth and development. The IGF system, including ligands, re
ceptors, binding proteins and proteases is also involved in pathophysiologi
cal conditions, such as cancer and degenerative conditions. In this review,
the actions and interactions of the IGF system as it relates to Alzheimer'
s disease will be investigated. (C) 2000 Harcourt Publishers Ltd.