Corticosteroids modulate angiogenic soluble factors in ulcerative colitis patients.

Digestive Diseases and Sciences
Inés D PousaJavier P Gisbert

Abstract

The aim of this study was to compare angiogenic factors in serum levels of active ulcerative colitis (UC) patients and in healthy controls, and to analyze these angiogenic levels depending on the achievement of remission after oral corticosteroid treatment throughout treatment, and according to the Truelove-Witts activity index. Blood samples were collected from 13 patients receiving oral corticosteroids for treatment of UC flares at three different intervals--baseline, during, and after treatment--and from 26 healthy controls. Vascular endothelial growth factor (VEGF), placental growth factor (PlGF), VEGF receptor 1 (VEGFR1), angiopoietins (Ang) 1 and 2, and its receptor Tie2 were assayed by ELISA. While VEGF and Ang2 levels in UC patients were higher than in healthy controls (P < 0.05), UC patients showed lower levels of Ang1 than healthy individuals (P < 0.05). In UC patients who achieved clinical remission after corticosteroid treatment, a statistically significant higher baseline serum level of PlGF was observed (22 ± 5 vs. 18 ± 2; P < 0.05). Angiogenic factor levels varied during treatment; however, they did not show a statistically significant correlation to the activity of the disease. VEGF, Ang1, and Ang2 levels showed...Continue Reading

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Citations

Jul 19, 2013·Journal of Crohn's & Colitis·Pablo M LinaresJavier P Gisbert
Sep 10, 2011·American Journal of Physiology. Gastrointestinal and Liver Physiology·Caroline B AppleyardClaudio De Simone

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