Chemical Senses Advance Access published online on April 2, 2007
Chemical Senses, doi:10.1093/chemse/bjm011
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Why Have Neurogenesis in Adult Olfactory Systems? The Presidential Symposium at the 2006 AChemS Conference
Department of Biology, Georgia State University, PO Box 4010, Atlanta, GA 30302-4010, USA
Correspondence to be sent to: Charles Derby, Department of Biology, Georgia State University, PO Box 4010, Atlanta, GA 30302-4010, USA. e-mail: cderby@gsu.edu
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The topic of the Presidential Symposium at the 28th Annual Meeting of the Association for Chemoreception Sciences, on 29 April 2006, was "Why Have Neurogenesis in Adult Olfactory Systems?" This introductory paper plus the following 3 papers arose from the science presented in that symposium.
Cell proliferation has long been known to occur in adult animals. It occurs in many tissues, including the epidermis and intestinal lining wherein it functions in the turnover and repair of tissue normally exposed to harsh environments. For many years, cell proliferation was thought to be absent from the nervous system of adult animals. This was the prevailing dogma until the 1960s, when radiolabeled molecules became more available for biological studies. This included tritiated thymidine, which could be used to label cells in the S-phase of the cell cycle. This provided a convenient and