European journal of gastroenterology & hepatology · 2009
Mast cell tryptase in sera of patients with Crohn's disease and mastocytosis.
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de Rossi Thomas Michael, Krauss Norbert, Wilken Verena, Giera Benita, Konturek Peter C, Kressel Jürgen, Hahn Eckhart Georg, Raithel Martin
Аннотация
INTRODUCTION: The pathogenesis of Crohn's disease is unclear, but an abnormal immune response seems to play an important role. This study investigated whether serum tryptase could be shown in Crohn's disease as a marker of disease.
MATERIALS AND METHODS: Mast cell tryptase was detected in sera of 48 patients with active Crohn's disease, 31 patients with inactive Crohn's disease, 17 patients with mastocytosis, and 50 controls. Tryptase detection was carried out by UniCap System. Tryptase levels are given as U/l x m2 body surface area to overcome variations of body weight, height, etc. between malnourished and normal persons.
RESULTS: Serum tryptase levels (U/l x m2 body surface area) of controls were 2.4+/-1.0, of patients with Crohn's disease 2.5+/-2.0. In contrast, serum tryptase values were significantly increased in untreated patients with mastocytosis (21.19+/-18.55).
DISCUSSION: Mast cell tryptase is not elevated in sera of Crohn's disease. It might thus be speculated that this highly mast cell associated mediator might only contribute to local symptoms of Crohn's disease such as diarrhea, abdominal pain, etc., but not to its systemic inflammatory effects (Th 1 cytokine pattern). Tryptase may be well used for the screening of patients with mastocytosis.
MATERIALS AND METHODS: Mast cell tryptase was detected in sera of 48 patients with active Crohn's disease, 31 patients with inactive Crohn's disease, 17 patients with mastocytosis, and 50 controls. Tryptase detection was carried out by UniCap System. Tryptase levels are given as U/l x m2 body surface area to overcome variations of body weight, height, etc. between malnourished and normal persons.
RESULTS: Serum tryptase levels (U/l x m2 body surface area) of controls were 2.4+/-1.0, of patients with Crohn's disease 2.5+/-2.0. In contrast, serum tryptase values were significantly increased in untreated patients with mastocytosis (21.19+/-18.55).
DISCUSSION: Mast cell tryptase is not elevated in sera of Crohn's disease. It might thus be speculated that this highly mast cell associated mediator might only contribute to local symptoms of Crohn's disease such as diarrhea, abdominal pain, etc., but not to its systemic inflammatory effects (Th 1 cytokine pattern). Tryptase may be well used for the screening of patients with mastocytosis.