Editor-in-Chief, Deputy Editor 2017-2019

 

Editor-in-Chief:

Tom MOREELS

 

Deputy Editor:

Nicolas LANTHIER

 

Original articles



Association between single nucleotide polymorphisms of the transient receptor potential vanilloid 1 (TRPV-1) gene and patients with irritable bowel syndrome in Korean populations


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Background and study aims : Transient receptor potential vanilloid type 1 (TRPV1) plays a crucial role in pain perception and its expression is up-regulated in patients with irritable bowel syndrome (IBS). The aim of this study was to investigate the potential association between Single nucleotide polymorphism (SNPs) of the TRPV-1 gene and patients with IBS. Patients and methods : We chose to focus on three SNPs in the human TRPV1 coding region (rs222749, rs9894618 and rs222747) in 80 healthy controls and 103 IBS patients. We developed the high resolution melting (HRM) method to determine the genotyping of rs222747 and rs9894618 and the genotyping of rs222749 was also determined by direct sequencing method. Results : The CG genotype of rs222747 was 58.8% in controls and 45.6% in the IBS group. The GG genotype of rs222747 was 15.0% in controls and 20.4% in the IBS group. The CT genotype of rs222749 was 31.3% in controls and 32.0% in the IBS group. The CC genotype of rs9894618 was 98.8% in controls and 100.0% in the IBS group. There was no significant difference in allele frequency of these three SNPs of the TRPV1 gene between controls and the IBS group. Also, no significant difference was observed between the IBS subtypes. Conclusions : These results suggest that the SNPs of the TRPV1 gene may not be associated with IBS in Korean populations. Further studies with large cases are needed to validate the results of the present study. (Acta gastro enterol. belg., 2012, 75, 222-227). [Product Details...]



Effects of sitagliptin in diabetic patients with nonalcoholic steatohepatitis


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Background & Aims : Preliminary evidence suggests that inhibition of dipeptidyl peptidase (DPP)-IV preserves pancreatic beta cell function in patients with type 2 diabetes (T2D). However, its effects on liver histology in nonalcoholic steatohepatitis (NASH), hepatic complication of diabetes, have not yet been adequately explored. The present open-label, single-arm observational pilot study investigated the effects of one year of treatment with a dipeptidyl peptidase-IV inhibitor, sitagliptin, on liver histology, body mass index (BMI), and laboratory parameters in NASH patients with T2D. Patients and Methods : Paired liver biopsies from 15 diabetic patients with NASH (7 males, 8 females ; mean age : 49.7 ± 8.1 years (range : 36-62)) before and after one year of therapy with sitagliptin 100 mg once daily were studied. Clinical and laboratory parameters were recorded. Results : Treatment with sitagliptin resulted in a significant decrease in ballooning (P = 0.014) and NASH scores (P = 0.04), while the reduction in the steatosis score was of borderline statistical significance (P = 0.054). These effects were accompanied by a significant reduction in body mass index, AST, and ALT levels. Conclusion : Our study suggests that sitagliptin ameliorates liver enzymes and hepatocyte ballooning in NASH patients with T2D and may have therapeutic implications. (Acta gastro enterol. belg., 2012, 75, 240-244). [Product Details...]



Expression of IFNAR2 mRNA in peripheral blood mononuclear cells of patients with HCV infection


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Background : To investigate the differences of interferon-α/β receptor 2 (IFNAR2) mRNA expression level in peripheral blood mononuclear cells (PBMCs) between different stages of hepatitis C virus (HCV) infection and to determine the correlation with the effectiveness of interferon therapy. Methodology : 58 patients, positive for anti-HCV antibodies, were divided into three groups depending on their clinical symptoms : acute hepatitis (4 cases), chronic hepatitis (46 cases) and liver cirrhosis (8 cases). 15 volunteers served as healthy controls. PBMCs were purified by density gradient centrifugation and IFNAR2 mRNA was amplified from these cells by a reverse transcription- polymerase chain reaction (RT-PCR) assay. Results : The detection rate of IFNAR2 mRNA was 87.9% (51/58 cases) in the PBMCs of patients with HCV infection, significantly higher than that in the control group (33.3%, 5/15 cases ; P 0.05). However, higher expression of IFNAR2 mRNA in the PBMCs did correlate with the effectiveness of interferon therapy (P tiveness of interferon therapy, which was independent of the viral load. (Acta gastro enterol. belg., 2012, 75, 228-233). [Product Details...]



Factors influencing the prognosis of patients with intrahepatic cholangiocarcinoma


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Background and aims : The outcome of surgical treatment of patients with intrahepatic cholangiocarcinoma (ICC) is poor. This study was designed to analyze prognostic factors following surgical treatment for ICC. Patients and methods :A structured telephone interview was conducted in 132 patients who were surgically treated for ICC. Fifteen clinical and pathological factors that may influence post-operative survival were analyzed by using Cox proportional hazards model. Results : The accumulative 1-, 3-, 5-year survival rate of the 132 patients was 51.3%, 21.6%, and 11.8% respectively. The mean survival time in patients with elevated serum carbohydrate antigen (CA) 19-9 at the time of the operation was shorter than in patients with normal serum CA19-9 (9.6 ± 24.7 vs 16.1 ± 6 months, P [Product Details...]



Small bowel metastases from melanoma : does videocapsule provide additional information after FDG positron emission tomography ?


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Finding small bowel metastases of melanoma can be important because surgical removal of unique small bowel metastasis of melanoma could improve survival. In this study, we evaluated if capsule endoscopy provides additional information after Pet CT has been performed. In this series of 9 patients collected from 3 university centers, capsule endoscopy influenced the therapeutic decision (to perform or not a surgical segmental resection) in 2/9 patients. All metastatic lesions were found in the proximal bowel. Capsule identified jejunum metastases in one case while Pet CT was negative, and identified metastases while Pet CT result was not conclusive. In one case PET CT identified mesenteric metastases while capsule was negative. SBCE influenced therapeutic decision in 2/9 patients concerning the decision of performing small bowel resection or not. In 1 patient SBCE changed the stage of the disease without affecting medical therapeutic strategy. The prognosis of patients with positive PET and/or capsule findings is very limited (2/3 died within the year). In selected patients, capsule endoscopy can provide complementary information once PET CT has been performed. (Acta gastro enterol. belg., 2012, 75, 219-221). [Product Details...]


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