Biomaterial Database

Enhanced formation of sulfidopeptide-leukotrienes in ulcerative colitis and Crohn's disease: inhibition by sulfasalazine and 5-aminosalicylic acid. 1986

B M Peskar, and K W Dreyling, and B A Peskar, and B May, and H Goebell

Release of sulfidopeptide (SP)-leukotrienes (LT) in vitro from normal human colonic mucosa and from mucosal tissue obtained from patients with Crohn's disease (CD) and ulcerative colitis (UC) was investigated. It was found that inflamed mucosal tissue released significantly more SP-LT than normal colonic mucosa both under control conditions and after addition of calcium ionophore A23187. These results indicate the presence of endogenous stimuli as well as an increased responsiveness to an exogenous stimulus of LT formation in the inflamed mucosa. Sulfasalazine (SASP), a drug used in inflammatory bowel diseases, and its active metabolite 5-aminosalicylic acid (5-ASA) were found to inhibit colonic mucosal SP-LT formation, while only 5-ASA inhibited simultaneously synthesis of another arachidonic acid-derived inflammatory mediator, prostaglandin (PG) E2. The results suggest that SP-LT might be important mediators of inflammation in CD and UC.

UI	MeSH Term	Description	Entries
D007413	Intestinal Mucosa	Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI.	Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D012007	Rectum	The distal segment of the LARGE INTESTINE, between the SIGMOID COLON and the ANAL CANAL.	Rectums
D012016	Reference Values	The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality.	Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D003093	Colitis, Ulcerative	Inflammation of the COLON that is predominantly confined to the MUCOSA. Its major symptoms include DIARRHEA, rectal BLEEDING, the passage of MUCUS, and ABDOMINAL PAIN.	Colitis Gravis,Idiopathic Proctocolitis,Inflammatory Bowel Disease, Ulcerative Colitis Type,Ulcerative Colitis
D003424	Crohn Disease	A chronic transmural inflammation that may involve any part of the DIGESTIVE TRACT from MOUTH to ANUS, mostly found in the ILEUM, the CECUM, and the COLON. In Crohn disease, the inflammation, extending through the intestinal wall from the MUCOSA to the serosa, is characteristically asymmetric and segmental. Epithelioid GRANULOMAS may be seen in some patients.	Colitis, Granulomatous,Enteritis, Granulomatous,Enteritis, Regional,Ileitis, Regional,Ileitis, Terminal,Ileocolitis,Crohn's Disease,Crohn's Enteritis,Inflammatory Bowel Disease 1,Regional Enteritis,Crohns Disease,Granulomatous Colitis,Granulomatous Enteritis,Regional Ileitides,Regional Ileitis,Terminal Ileitis
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000636	Aminosalicylic Acids	A group of 2-hydroxybenzoic acids that can be substituted by amino groups at any of the 3-, 4-, 5-, or 6-positions.	Acids, Aminosalicylic
D012460	Sulfasalazine	A drug that is used in the management of inflammatory bowel diseases. Its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see MESALAMINE) released in the colon. (From Martindale, The Extra Pharmacopoeia, 30th ed, p907)	Salicylazosulfapyridine,Asulfidine,Azulfadine,Azulfidine,Azulfidine EN,Colo-Pleon,Pleon,Pyralin EN,Salazopyrin,Salazosulfapyridine,Sulfasalazin medac,Sulfasalazin-Heyl,Sulfasalazine FNA,Sulphasalazine,Ucine,Ulcol,ratio-Sulfasalazine,Colo Pleon,Sulfasalazin Heyl,ratio Sulfasalazine
D013189	SRS-A	A group of LEUKOTRIENES; (LTC4; LTD4; and LTE4) that is the major mediator of BRONCHOCONSTRICTION; HYPERSENSITIVITY; and other allergic reactions. Earlier studies described a "slow-reacting substance of ANAPHYLAXIS" released from lung by cobra venom or after anaphylactic shock. The relationship between SRS-A leukotrienes was established by UV which showed the presence of the conjugated triene. (From Merck Index, 11th ed)	Slow Reacting Substance of Anaphylaxis