We have analyzed possible qualitative and quantitative differences in antigen expression between Helicobacter pylori strains isolated from the antrum and different locations in the duodenum of 21 duodenal ulcer (DU) patients and 20 asymptomatic subjects (AS) by enzyme-linked immunosorbent assay (ELISA) and inhibition ELISA. Almost all antral and duodenal strains grown in vitro expressed the N-a...

We tested whether duodenal tube feeding effectively improves the clinical symptoms and body weight gain in children with congenital heart disease (CHD) and gastroesophageal reflux (GER). In the retrospective analysis of 17 consecutive children with CHD who were treated with duodenal tube feeding for symptomatic GER, we found that clinical symptoms of persistent emesis or respiratory wheezing af...

AIM To assess the clinical characteristics of Helicobacter pylori (H pylori) negative duodenal ulcer. METHODS Patients with an endoscopic diagnosis of duodenal ulcer between 1996 and 2002 were included in the present study. Patients were considered to be negative for H pylori, if both histological examination and rapid urease test of biopsy specimens were negative. A comparison was made betwe...

BACKGROUND Previous studies have shown that administration of ghrelin exhibits protective and therapeutic effects in the gut. The aim of the present investigation was to examine the influence of ghrelin administration on the course of cysteamine-induced duodenal ulcers, as well as effects on mucosal production of oxygen free radicals and duodenal antioxidant defense. MATERIAL/METHODS Duodenal...

The effect of bombesin, a possible neurotransmitter of gastrin release, upon gastrin and gastric acid secretion was investigated in 25 patients with duodenal ulcer and in 16 normal subjects. In patients with duodenal ulcer bombesin (10 ng/kg/min) produced an increase in plasma gastrin output (median 22.4 (range 7.5-75.8) pmol/l/min) similar to that obtained in normal subjects (median 24.4 (rang...

BACKGROUND AND STUDY AIMS Duodenal obstruction may prevent performance of endoscopic retrograde cholangiopancreatography (ERCP). Percutaneous transhepatic biliary drainage (PTBD) or Endoscopic ultrasonograhy-guided biliary access (EUS-BD) are alternative treatments but are associated with a higher morbidity and mortality rate. The aim of the study is to report overall technical success rate and...

Objective: The protective effect of silymarin (SMN) on mycophenolate mofetil (MMF)–induced duodenal disorders was investigated. Materials and Methods: Forty-two Wistar rats were assigned to seven groups including control and test groups. The control animals received saline and the test animals were treated with MMF (30 mg/kg, orally) and saline, MMF and SMN (25, 50, and 100 mg/kg, orally), MMF ...

BACKGROUND Clinical algorithms for the workup of celiac disease often recommend the use of serologic assays for initial screening, followed by duodenal biopsy for histologic confirmation. However, the majority of duodenal biopsies submitted to pathology for "rule out celiac" are negative. The objective of this study was to determine the underlying causes for this low diagnostic yield. METHODS...

Gut perforations during ERCP and stenting or due to migration of stents are very rare complications, with an incidence of well below 2%. Moreover, direct duodenoscope-induced lateral or medial duodenal wall perforation is much less common, accounting for 0.1% of patients who undergo ERCP, but tends to be large and further away from the ampulla. Duodenal perforations from the superior duodenal a...