Pharmacological studies of diacerein in animal models of inflammation, arthritis and bone resorption.

Abstract

Diacerein has proved to be effective in the treatment of osteoarthritis. We investigated the effects of diacerein in animal models of carrageenin-, zymosan-, or dextran-induced paw edema and adjuvant-induced arthritis and in ovariectomized rats. In acute inflammatory models, unlike classical nonsteroidal anti-inflammatory drugs such as naproxen and ibuprofen, diacerein inhibited the rat paw edema induced by various agents. In the adjuvant-induced arthritic rats, diacerein at 100 mg/kg/day significantly suppressed the paw edema and the increase in serum mucoprotein. Addition of 3 mg/kg/day naproxen to each diacerein (3, 10, 30 mg/kg/day) dose resulted in significantly greater anti-inflammatory activity than with naproxen alone. In the ovariectomized rats, diacerein (10, 100 mg/kg/day) also significantly prevented bone loss and reduced the serum alkaline phosphatase and decreased the excretion of urinary hydroxyproline. In addition, rhein (10, 30 microM) inhibited calcium release from mouse calvaria induced by interleukin-1 beta, prostaglandin E(2) and parathyroid hormone 1-34 human fragment. These findings indicate that diacerein is a novel anti-inflammatory drug with pharmacological properties different from those of classical nonsteroidal anti-inflammatory drugs and support the clinical investigation of the use of combination therapy with diacerein and nonsteroidal anti-inflammatory drugs in patients with not only osteoarthritis but also rheumatoid arthritis.

• Authors: Tadafumi Tamura, Tomomi Shirai, Nobuo Kosaka, Kenji Ohmori, Nagatomo Takafumi
• Journal: European journal of pharmacology (Eur J Pharmacol) Vol. 448 Issue 1 Pg. 81-7 (Jul 12 2002) ISSN: 0014-2999 [Print] Netherlands
• PMID: 12126975 (Publication Type: Journal Article)
• Copyright: Copyright 2002 Elsevier Science B.V.

Chemical References

• Anthraquinones
• Anti-Inflammatory Agents, Non-Steroidal
• Osteocalcin
• diacerein

Topics

• Animals
• Anthraquinones (therapeutic use)
• Anti-Inflammatory Agents, Non-Steroidal (therapeutic use)
• Arthritis (drug therapy)
• Bone Resorption (drug therapy)
• Edema (prevention & control)
• Female
• Inflammation (drug therapy)
• Male
• Mice
• Osteocalcin (blood)
• Rats
• Rats, Inbred Lew
• Rats, Sprague-Dawley
• Rats, Wistar