Abstract:
:The present study was designed to determine whether a state of neuropathic pain induced by sciatic nerve ligation could alter phosphorylated-mu-opioid receptor-like immunoreactivity in the superficial dorsal horn of the mouse spinal cord. Mice with sciatic nerve ligation exhibited a significant suppression of the morphine-induced antinociception. Under this condition, phosphorylated-mu-opioid receptor-like immunoreactivity was clearly increased on the ipsilateral side in the superficial laminae of the L5 lumbar spinal dorsal horn in nerve-ligated mice. These findings suggest that the phosphorylation of the mu-opioid receptor in the spinal cord under a neuropathic pain-like state may, at least in part, contribute to the reduction in the antinociceptive effect produced by morphine in the mouse.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Narita M,Kuzumaki N,Suzuki M,Narita M,Oe K,Yamazaki M,Yajima Y,Suzuki Tdoi
10.1016/j.neulet.2003.09.077keywords:
subject
Has Abstractpub_date
2004-01-09 00:00:00pages
148-52issue
2eissn
0304-3940issn
1872-7972pii
S0304394003011856journal_volume
354pub_type
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