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1Author    Kleopatra Schulpis3, A. Rtem Is Doulgerakib, Stylianos TsakirisbRequires cookie*
 Title    Changes of the Brain Synapses During Aging. New Aspects  
 Abstract    The process of brain aging is an interaction of age-related losses and compensatory mechanisms. This review is focused on the changes of the synaptic number and structure, their functional implications, regarding neurotransmission, as well as the electrical activity of neuronal circuits. Moreover, the importance of calcium homeostasis is strongly emphasized. It is also suggested that many neuronal properties are preserved, as a result of adaptive mechanisms, and that a series of interdependent factors regulate brain aging. The "new fron­ tier" in research is the challenge of understanding the effects of aging, both to prevent degen­ erative diseases and reduce their consequences. New aspects are considered a) the role of nitric oxide, b) free radicals and apoptosis, c) impaired cerebral microcirculation, d) m eta­ bolic features of aging brain, e) the possible neuroprotective role of insulin-like growth factor-1 (IGF-1) and ovarian steroids and e) stress and aging. These numerous multifactorial approaches are essential to understand the process of aging. The more we learn about it, the more we realize how to achieve "successful" aging. M inireview 
  Reference    Z. Naturforsch. 56c, 921—929 (2001); received May 15/June 12 2001 
  Published    2001 
  Keywords    Brain, Aging, Synapses 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-0921.pdf 
 Identifier    ZNC-2001-56c-0921 
 Volume    56