Mouse study finds enzyme injection has lasting effects
A new treatment mimics the pain-blocking mechanism of acupuncture but offers longer-lasting pain relief, at least in mice.
Injections of an enzyme called PAP into an acupuncture point behind the knees of mice relieved pain caused by inflammation for up to six days, Julie Hurt and Mark Zylka of the University of North Carolina at Chapel Hill report online April 23 in Molecular Pain. That’s almost 100 times longer than pain relief from acupuncture, which typically lasts about 1½ hours.
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