Quote:
When we treated the mice with the right drugs, their sensitivity to this touch became normal again," Zeilhofer said. And it worked without unwanted sedation or impaired motor function.
"Normal pain, however, was retained. This is important because normal pain has a protective function as it warns us of tissue damage," he said.
They also used brain scans on rats to see how the drugs worked in certain pain centers that control both the sensation of pain and the feelings of anxiety that pain can produce. The scans showed the drugs reduced pain in these brain regions.
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http://www.rsds.org/electronic%20ale..._01312008.html
its got a ways to go, I am getting more hopeful with all the studys I read about lately.