Abstract：
:Life expectancy in the last century has greatly increased although, in most industrialized countries, this has been paralleled by an increased incidence of neurodegenerative disorders, in addition to cardiovascular and metabolic pathologies. The p66(Shc) gene has emerged as a novel gerontogene affecting health throughout life and during aging. In the last decade, studies on p66(Shc) knock-out mice have indicated that this gene is a crucial regulator of reactive oxygen species (ROS) levels and is involved in age-related dysfunctions. p66(Shc-/-) mice show indeed a healthy phenotype characterized by greater brain and behavioral plasticity - associated to increased central levels of the neurotrophin Bran-Derived Neurotrophic Factor (BDNF) - in addition to reduced oxidative stress, fat accumulation and incidence of metabolic and cardiovascular pathologies. Studies performed in a semi-naturalistic setting, involving exposure to low temperatures and food shortage indicate that p66(Shc) has been conserved through evolution because of its role as "thrifty gene" in energy metabolism. This feature, which allows survival in harsh natural conditions, can be deleterious when food is constantly available, as in westernized lifestyles, leading to fat accumulation and predisposing to metabolic, cardiovascular diseases and accelerating brain aging. Being at the crossroad of signaling pathways involved in both central and peripheral stress responses and in the regulation of energy homeostasis, p66(Shc) is a good candidate molecule to address the mechanisms underlying healthy aging and to be targeted for the development of novel pharmacological tools for the prevention or cure of age-related pathologies.
journal_name
Neurosci Biobehav Revjournal_title
Neuroscience and biobehavioral reviewsauthors
Berry A,Cirulli Fdoi
10.1016/j.neubiorev.2013.03.005subject
Has Abstractpub_date
2013-06-01 00:00:00pages
790-802issue
5eissn
0149-7634issn
1873-7528pii
S0149-7634(13)00065-1journal_volume
37pub_type
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