Mast cell stabilizer ketotifen inhibits gouty inflammation in rats

Dur Zong Hsu, Pei Yi Chu, Si Jin Chen, Ming-Yi Liu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Gout, an extremely painful arthritis with relapsing inflammatory attacks, is a common inflammatory joint disease in adults. We examined the therapeutic effect of ketotifen, a mast cell stabilizer, on monosodium urate (MSU) crystal-induced acute inflammation. Eight-week-old male Wistar rats were injected with MSU crystals (5 mg per rat) into air pouch. Ketotifen (0, 0.1, 03, and 1 mg/kg) was given 1 hour before MSU crystal injection. Lavage histamine, leukocyte counts, mast cell counts, nitric oxide, and proinflammatory mediator levels were assessed 12 hours after MSU injection. Ketotifen significantly inhibited MSU-induced mast cell activation and histamine concentration in air pouch lavage. Ketotifen dose-dependently inhibited MSU-initiated leukocyte infiltration into the air pouch. Furthermore, ketotifen significantly decreased proinflammatory mediators, including nitric oxide, interleukin-1β, and interleukin-6, production in MSU-treated rats. Ketotifen may attenuate MSU-induced acute inflammation by inhibiting mast cell activation and leukocyte infiltration in rats. Furthermore, ketotifen has the potential to be a new approach in managing patients with gouty inflammation in the future.

Original languageEnglish
Pages (from-to)e1009-e1015
JournalAmerican Journal of Therapeutics
Issue number4
Publication statusPublished - 2016 Aug 1

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Pharmacology (medical)

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