2024-03-29T12:55:24Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/608932019-03-06T12:45:23Zcom_10261_54com_10261_1col_10261_307
DIGITAL.CSIC
author
Trejo, José L.
author
Carro, Eva
author
López-López, C.
author
Torres Alemán, Ignacio
2012-11-22T13:45:16Z
2012-11-22T13:45:16Z
2004
Growth Hormone and IGF Research 14: S39- S43 (2004)
1096-6374
http://hdl.handle.net/10261/60893
10.1016/j.ghir.2004.03.010
Modern societies face new public health challenges associated with an increasingly aging population. Among these, pathological conditions linked to brain aging are paramount. Old age is a risk factor for important neurological impairments such as Alzheimer's disease or stroke. Even healthy elderly people usually present with milder forms of cognitive decline. This is possibly related to less-pronounced brain deficits seen in normal aging, including the shrinkage of neurons and the dense network of neurons and glia in the central nervous system known as the neuropil, a lower neurogenetic rate, impaired angiogenesis or brain accumulation of deleterious compounds. At least in mammals, age is also associated with a decline in insulin-like growth factor-I (IGF-I) levels, a well-known neuroprotective agent. Recently, a relationship between serum IGF-I and >house-keeping> mechanisms in the brain has been evidenced in laboratory rodents. Serum IGF-I increases adult neurogenesis, sustains neuronal health through a variety of fundamental homeostatic mechanisms, participates in brain angiogenesis, contributes to brain β-amyloid clearance and affects learning and memory. Overall, diminished trophic input resulting from decreasing serum IGF-I levels during aging likely contributes to brain senescence in mammals. © 2004 Elsevier Ltd. All rights reserved.
eng
closedAccess
Role of serum insulin-like growth factor I in mammalian brain aging
artículo
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https://digital.csic.es/bitstream/10261/60893/1/accesoRestringido.pdf
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accesoRestringido.pdf.txt