Title
A neural signaling triumvirate that influences ageing and age-related disease: insulin/IGF-1, BDNF and serotoninA neural signaling triumvirate that influences ageing and age-related disease: insulin/IGF-1, BDNF and serotonin
Author
Faculty/Department
Faculty of Pharmaceutical, Biomedical and Veterinary Sciences . Biomedical Sciences
Publication type
article
Publication
Baltimore, Md,
Subject
Biology
Human medicine
Source (journal)
Ageing research reviews. - Baltimore, Md
Volume/pages
3(2004):4, p. 445-464
ISSN
1568-1637
ISI
000226508400006
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
The ageing process and its associated diseases all involve perturbed energy metabolism, oxidative damage. and an impaired ability of the organism and its cells to cope with adversity. We propose that some specific signaling pathways in the brain may be important determinants of health during ageing. Among such specific signaling modalities are those activated in neurons by insulin-like growth factors (IGFs), brain-derived neurotrophic factor (BDNF) and serotonin. This triumvirate may be particularly important because of their cooperative influence on energy metabolism, food intake, stress responses and cardiovascular function. The health benefits to the periphery and central nervous system of dietary restriction and exercise may be mediated by this triumvirate of signals in the brain. At the molecular level, BDNF, serotonin and IGFs can all stimulate the production of proteins involved in cellular stress adaptation, growth and repair, neurogenesis, learning and memory and cell survival. The importance of this triumvirate is emphasized when it is seen that their general roles in energy metabolism, stress adaptation and disease resistance are conserved among diverse organisms consistent with important roles in the ageing process. Published by Elsevier Ireland Ltd.
E-info
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