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. Author manuscript; available in PMC: 2011 Aug 25.
Published in final edited form as: Neuroscience. 2010 May 22;169(2):843–854. doi: 10.1016/j.neuroscience.2010.05.030

Figure 2.

Figure 2

Chronic morphine administration does not affect contralateral hind paw sensitivity following paw incision surgery or upon withdrawal of morphine treatment. Thermal hyperalgesia (a) and mechanical allodynia (b) were measured in the contralateral hind paw of rats in saline, morphine 7d and morphine 14d treatment groups following paw incision surgery on day 7. Thermal (c) and mechanical (d) allodynia was also measured in the hindpaw of non-injured rats from day 7 (last day of morphine 7d pump output) to day 14 (last day of morphine 14d pump output).