Concentrations of Connective Tissue Growth Factor in Patients with Nonalcoholic Fatty Liver Disease: Association with Liver Fibrosis

Aim: In this study, we aimed to investigate the relationship between the histological fibrosis stage of nonalcoholic fatty liver disease (NAFLD) and serum connective tissue growth factor (CTGF) to determine the usefulness of this relationship in clinical practice. Methods: Serum samples were collected from 51 patients with biopsy-proven NAFLD and 28 healthy controls, and serum levels of CTGF were assayed by ELISA. Results: Levels of CTGF were significantly higher in patients with NAFLD compared with controls (P = 0.001). The serum CTGF levels were significantly increased, that correlated with histological fibrosis stage, in patients with NAFLD [in patients with no fibrosis (stage 0) 308.2 ± 142.9, with mild fibrosis (stage 1–2) 519.9±375.2 and with advanced fibrosis (stage 3–4) 1353.2 ± 610 ng/l, P < 0.001]. Also serum level of CTGF was found as an independent predictor of histological fibrosis stage in patients with NAFLD (β = 0.662, t = 5.6, P < 0.001). The area under the ROC curve was estimated 0.931 to separate patients with severe fibrosis from patients with other fibrotic stages. Conclusion: Serum levels of CTGF may be a clinical utility for distinguishing NAFLD patients with and without advanced fibrosis

EDITORIAL

WOS: 00045445090000

Collagenous Colitis: A Retrospective Survey of Patients with Chronic Diarrhea

Background/Aims: The aim of this retrospective survey is to determine the frequency of collagenous colitis among patients who presented with chronic diarrhea to our gastroenterology outpatient clinic and to evaluate the demographic, clinical and laboratory findings of these patients and the treatment modalities. Methodology: We reviewed the charts of the patients who had presented with chronic diarrhea to our outpatient clinic during four years. We identified the patients who were diagnosed to have collagenous colitis on histopathological examination. Results: Among the 93 patients who presented with chronic diarrhea, 7 (7.5%) were diagnosed as collagenous colitis. Six of these patients were female, the mean age was 64 +/- 11.5 years. Celiac disease was diagnosed in 2 of these patients. Laboratory examination showed anemia in 2 patients, hypoalbuminemia in 4 patients and high C-reactive protein levels in 3 patients. Five patients, were treated with mesalazine, 1 patient with salazopyrine and 1 with methylprednisolone. Remission was obtained in all of these patients except for one; in this case budesonide was started instead of mesalazine. Conclusions: Collagenous colitis was detected in 7.5% of the patients who presented with chronic diarrhea to our gastroenterology outpatient clinic. They were usually middle aged female patients. Mesalazine was effective in most of these patients