Electrical currents used to speed up wound healing

Jul 27, 2006 10:00

Oooh, cool. Finally something involving "fields" for wound healing that isn't pseudoscience:

"Cells and tissues essentially function as chemical batteries, with positively charged potassium ions and negatively charged chloride ions flowing across membranes. This creates electric field patterns all over the body. When tissue is wounded this disrupts the battery, effectively short-circuiting it. Penninger and his colleagues realised that it is the resulting altered fields that attract and guide repair cells to the damaged area.

The researchers grew layers of mouse cells and larger tissues, such as corneas, in the lab. After "wounding" these tissues, they applied varying electric fields to them, and found they could accelerate or completely halt the healing process depending on the orientation and strength of the field (Nature, vol 442, p 457)."

Full article is at:

http://www.newscientist.com/article/mg19125624.400-to-heal-a-wound-turn-up-the-voltage.html
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