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Not just bleach: Hydrogen peroxide may tell time for living cells
Date:11/3/2009

peroxide as perhaps being a relevant signaling molecule for coupling metabolism to behaviors and rhythms in the animal," Tower said.

Hydrogen peroxide would govern rhythms inside each cell as well as between cells, Tower added.

Every cell alternates between a metabolic phase in which it burns oxygen to make energy and a detoxification phase in which the cell breaks down the harmful by-products of combustion.

Those rhythms must be coupled with the energy-producing activity of the mitochondria.

"Because hydrogen peroxide is produced by mitochondria as a product of metabolism, it's a great candidate for a relevant signal that might be modulating these cellular rhythms," Tower said.


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Contact: Carl Marziali
marziali@usc.edu
213-740-4751
University of Southern California
Source:Eurekalert

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