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Insulin-like growth factor-I, cognition and brain aging
P Sytze van Dam1, André Aleman
1Department of Internal medicine, Onze Lieve Vrouwe Gasthuis, PO Box 95500, 1090 HM Amsterdam, The Netherlands. p.s.vandam@olvg.nl
European Journal of Pharmacology
|April 20, 2004
Summary
Aging reduces growth hormone (GH) and insulin-like growth factor-I (IGF-I) activity, potentially causing cognitive decline in older adults. This review explores the link between GH/IGF-I levels and cognitive function in the elderly.
Area of Science:
- Endocrinology
- Neuroscience
- Gerontology
Background:
- Aging is linked to decreased growth hormone (GH)/insulin-like growth factor-I (IGF-I) axis activity.
- Cognitive functions also decline with age, with some deficits mirroring those in GH deficiency.
Purpose of the Study:
- To review the relationship between GH, IGF-I, and cognitive performance in the elderly.
- To explore potential pathophysiological mechanisms underlying these associations.
Main Methods:
- Literature review of studies investigating GH/IGF-I and cognitive function in aging.
- Analysis of data on hormonal levels and cognitive assessments in elderly populations.
Main Results:
- Evidence suggests a correlation between reduced GH/IGF-I levels and cognitive impairments in aging.
- Specific cognitive domains affected may include memory and executive functions.
Conclusions:
- The decline in the GH/IGF-I axis may contribute to age-related cognitive deficits.
- Further research is needed to elucidate the precise mechanisms and potential therapeutic interventions.