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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Growth restoration of insulin-deficient diabetic rats by recombinant human insulin-like growth factor I.

Insulin-like growth factor I (IGF-I) and insulin stem from a common precursor, are structural homologues, act through similar receptors and elicit insulin-like and growth-promoting effects in vitro and in vivo. Serum IGF-I levels are controlled by growth hormone, insulin and nutrition. Insulin-deficient growth-arrested diabetic animals have reduced serum IGF-I levels which are restored towards normal by insulin but not by growth-hormone treatment. Here we show that normal growth of diabetic rate is restored by infusion of recombinant human (rh)IGF-I without normalization of the blood sugar level and that insulin acts via an increase of IGF-I synthesis on growth of diabetic rats. We describe a new mechanism of endocrine control of growth in which IGF-I is the major stimulator at the cellular level. Growth hormone and insulin act mainly by modulating the hepatic synthesis of IGF-I.[1]

References

  1. Growth restoration of insulin-deficient diabetic rats by recombinant human insulin-like growth factor I. Scheiwiller, E., Guler, H.P., Merryweather, J., Scandella, C., Maerki, W., Zapf, J., Froesch, E.R. Nature (1986) [Pubmed]
 
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