Olsalazine is a potent inhibitor of macrophages chemotaxis to LTB4 with an IC50 value of 0.39 mM, also reduces the synthesis of 5-droxyeicosatetraenoic acid (5-HETE), 11-HETE, 12-HETE, and 15-HETE in polymorphonuclear leukocyte (PMNL) and mononuclear cells (MNL). Olsalazine can be used for researching ulcerative colitis. Anti-inflammatory activity.
References:
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[2]. Horn H, et al. Modulation of arachidonic acid metabolism by olsalazine and other aminosalicylates in leukocytes. Scand J Gastroenterol. 1991 Aug;26(8):867-79.