AIM: This study investigates the effects of surgery on collagen turnover in patients affected by Crohn's disease (CD). METHODS: Fifteen patients affected by active CD, assessed according to the Crohn's disease activity index, and confirmed by histology, with different pharmacological treatments, were enrolled in the study. N-Terminal propeptide of type III collagen was assessed on peripheral blood before and 6 months after surgery, as an index of collagen turnover. A control group of 15 healthy age- and sex-matched subjects was also studied. RESULTS: In CD patients peripheral N-terminal propeptide of type III collagen serum levels were significantly higher than in controls before surgery (5.0 +/- 1.8 vs 2.7 +/- 0.7 microg/l, respectively; p = 0.0001). Six months after these values were significantly reduced (from 5.0 +/- 1.8 to 3.1 +/- 0.8 microg/l; p = 0.003). Independently on the pretreatment regimen and the duration of the disease, an improvement in the patients' symptoms was observed. CONCLUSIONS: The surgical resection of the affected intestinal segment in CD patients seems to be able to break down the collagen synthesis processes. Peripheral N-terminal propeptide of type III collagen could be seen as an additive marker to clinical and endoscopic observations after surgery.
AIM: This study investigates the effects of surgery on collagen turnover in patients affected by Crohn's disease (CD). METHODS: Fifteen patients affected by active CD, assessed according to the Crohn's disease activity index, and confirmed by histology, with different pharmacological treatments, were enrolled in the study. N-Terminal propeptide of type III collagen was assessed on peripheral blood before and 6 months after surgery, as an index of collagen turnover. A control group of 15 healthy age- and sex-matched subjects was also studied. RESULTS: In CDpatients peripheral N-terminal propeptide of type III collagen serum levels were significantly higher than in controls before surgery (5.0 +/- 1.8 vs 2.7 +/- 0.7 microg/l, respectively; p = 0.0001). Six months after these values were significantly reduced (from 5.0 +/- 1.8 to 3.1 +/- 0.8 microg/l; p = 0.003). Independently on the pretreatment regimen and the duration of the disease, an improvement in the patients' symptoms was observed. CONCLUSIONS: The surgical resection of the affected intestinal segment in CDpatients seems to be able to break down the collagen synthesis processes. Peripheral N-terminal propeptide of type III collagen could be seen as an additive marker to clinical and endoscopic observations after surgery.
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