Smoking: New research helps itch to quit

Sep 13, 2009

European scientists said Sunday they could explain why nicotine patches designed to help smokers kick their habit can cause skin irritation.

Nicotine activates a so-called ion channel in skin cells that unleashes an inflammatory response by the , leading to itching, they reported in the journal Nature Neuroscience.

Previously, the irritation had been blamed on stimulation of special receptors on nerve cells, causing pain signals to be sent to the brain.

The investigation, carried out on that had been genetically modified to lack the TRPA-1 ion channel, was led by Karel Talavera of the Leuven Catholic University, near Brussels.

The discovery could pave the way to smoking therapies with fewer side effects, the authors say.

(c) 2009 AFP

Explore further: Jamaica Senate starts debate on pot decriminalization bill

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