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Phys. Rev. Lett. 91, 268101 (2003) [4 pages]

Spontaneous Oscillations of Dressed Neurons: A New Mechanism for Epilepsy?

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Suhita Nadkarni and Peter Jung*
Department of Physics and Astronomy and Quantitative Biology Institute, Ohio University, Athens Ohio 45701, USA

Received 7 April 2003; published 24 December 2003

Most modeling studies of neurons and neuronal networks are based on the assumption that the neurons are isolated from their normal environment. Based on recent experimental data we put forward a model for neurons that incorporates the influence of the surrounding glia (dressed neurons). We predict seizurelike spontaneous oscillations in the absence of stimuli for strong coupling between neurons and astrocytes. Consistent with our predictions, a signature of this enhanced crosstalk, over expression of glutamate receptors in astrocytes, has been observed specifically in epileptic tissue.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.268101
DOI:
10.1103/PhysRevLett.91.268101
PACS:
87.19.La, 05.45.Xt, 87.19.Xx

*Electronic address: jungp@ohio.edu