Antinociceptive Effects of Prim-O-Glucosylcimifugin in Inflammatory Nociception via Reducing Spinal COX-2
Biomolecules & Therapeutics
;
: 418-425, 2016.
Article
in English
| WPRIM
| ID: wpr-68871
ABSTRACT
We measured anti-nociceptive activity of prim-o-glucosylcimifugin (POG), a molecule from Saposhnikovia divaricate (Turcz) Schischk. Anti-nociceptive or anti-inflammatory effects of POG on a formalin-induced tonic nociceptive response and a complete Freund's adjuvant (CFA) inoculation-induced rat arthritis pain model were studied. Single subcutaneous injections of POG produced potent anti-nociception in both models that was comparable to indomethacin analgesia. Anti-nociceptive activity of POG was dose-dependent, maximally reducing pain 56.6% with an ED₅₀ of 1.6 mg. Rats given POG over time did not develop tolerance. POG also time-dependently reduced serum TNFα, IL-1β and IL-6 in arthritic rats and both POG and indomethacin reduced spinal prostaglandin E2 (PGE₂). Like indomethacin which inhibits cyclooxygenase-2 (COX-2) activity, POG dose-dependently decreased spinal COX-2 content in arthritic rats. Additionally, POG, and its metabolite cimifugin, downregulated COX-2 expression in vitro. Thus, POG produced potent anti-nociception by downregulating spinal COX-2 expression.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Arthritis
/
In Vitro Techniques
/
Dinoprostone
/
Freund's Adjuvant
/
Indomethacin
/
Interleukin-6
/
Apiaceae
/
Cyclooxygenase 2
/
Nociception
/
Analgesia
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
Biomolecules & Therapeutics
Year:
2016
Type:
Article
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