[ Your Name ] would like to inform you about this article on Complexity Digest 2002.20 - 13 http://comdig.unam.mx/index.php?id_issue=2002.20#5977 20-May-2002 [ Your Message ] 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 You can discuss this article on Articles Forum http://comdig.unam.mx/topic.php?id_article=5977