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Complexity Digest 2002.20 - 13
http://comdig.unam.mx/index.php?id_issue=2002.20#5977
20-May-2002

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Neurons Keep  Cells In Rhythm, BioMedNet
 









Excerpt: New evidence that neuronal signaling is
critical to the function of a circadian clock "challenges" researchers to step
outside an individual cell and explore how different components work together
to establish an internal rhythm, says a leading researcher in the
field.Organisms ranging from fungi, fruit flies and humans have a robust
internal clock. Even when cut off from all external stimuli, such as light and
temperature, they still exhibit circadian behavior. Although the level of
complexity can vary tremendously (1,000s of neurons are involved in the human
clock; a mere 10 pairs in the fruit-fly), the general "molecular theme" is
well-conserved, says Todd Holmes, assistant professor of biology at New York
University.

 
 
	
	
 Neurons Keep Cells in Rhythm,
  Apoorva Mandavilli, BioMedNet . 17-May-2002.
  
Contributed by Nadia
  Gershenson


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