Abstract:
:Intraplantar (i.pl.) injections of thymulin have been shown to produce hyperalgesia in rats through a prostaglandin E2-dependent mechanism. This study aimed at investigating if such injections can produce sustained activation of spinal neurons by mapping the fos-like-immunoreactivity (FLI) as a marker for this activation. Our results showed that thymulin produces significant and sustained FLI in neurons located in spinal laminae known to be involved in nociception. Pretreatment with either morphine or meloxicam (a cyclooxygenase inhibitor) revealed differential effects on FLI and the hyperalgesia induced by thymulin. These findings support the hypothesis that thymulin can affect central neurons either directly or through the peripheral nerve terminals.
journal_name
J Neuroimmunoljournal_title
Journal of neuroimmunologyauthors
Saadé NE,Lawand HF,Safieh-Garabedian B,Kanaan SA,Atweh SF,Jabbur SJdoi
10.1016/s0165-5728(99)00031-4subject
Has Abstractpub_date
1999-06-01 00:00:00pages
16-24issue
1-2eissn
0165-5728issn
1872-8421pii
S0165-5728(99)00031-4journal_volume
97pub_type
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