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Neuron Cookie

From the Research Front

Previous research had linked physical exertion with higher levels of neuronal growth factors known as neurotrophins in the spinal cord and skeletal muscles. In new work, a team of researchers at the University of California at Los Angeles and the A. I. DuPont Hospital for Children in Wilmington, Del., tested whether these exercise-related changes affect the brain’s ability to form new connections. The scientists gave rats access to a running wheel for periods ranging from zero to seven days. When they tested cultured cells taken from the animals, they found that those from the runners grew longer extensions known as neurites and that there was a direct correlation between how far the rats ran and how long the neurites became.

Neuron Cookie Module

Resources and Links

More about Cajal and Golgi: see http://www.nobel.se/medicine/articles/cajal/

The story of how Golgi's slides were flown on the space shuttle Columbia:

Interesting insights into the role of glia can be found in the studies of Dr. Marian Diamond, who compared the ratio of glial cells to neurons in Albert Einstein's brain (see her personal account in Neuroscience, Exploring the Brain). (In career exploration, Dr. Diamond can also serve as an excellent example of a successful female neuroscientist: http://ib.berkeley.edu/faculty/diamondm.html; http://www.newhorizons.org/blab_diamond1.html

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