Jannis Kountouras

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Hepatic morphological abnormalities were examined in rats whose bile ducts had been either cannulated and then obstructed or irreversibly ligated for 5, 10, 15 and 28 days or longer. Throughout the experiment most of the morphological changes observed in the cannulated group were comparable to those in the ligated group. Portal inflammation and marginal(More)
BACKGROUND AND STUDY AIMS Deep cannulation of the common bile duct (CBD) is paramount for the success of endoscopic biliary intervention. The aim of the present study was to compare standard ERCP catheter and hydrophilic guide wire (HGW) in the selective cannulation of the CBD. PATIENTS AND METHODS A total of 332 patients were randomly assigned to(More)
Nonalcoholic fatty liver disease (NAFLD) encompasses a spectrum of common hepatic disorders in western countries, with multiple consequences and its incidence is paralleling the increasing numbers of overweight and obese individuals worldwide. The pathogenesis of NAFLD is thought to be related mainly with insulin resistance (IR) syndrome and oxidative(More)
Hypoadiponectinemia might represent a risk factor for nonalcoholic fatty liver disease (NAFLD). We performed a systematic review and meta-analysis to evaluate the serum total adiponectin levels in patients with simple nonalcoholic fatty liver (NAFL), those with nonalcoholic steatohepatitis (NASH), and controls. Data were extracted from PubMed, EMBASE, and(More)
The authors investigated the association between Helicobacter pylori infection (Hp-I) and Alzheimer disease (AD) by using histology for diagnosis of Hp-I. Fifty patients with AD and 30 iron deficiency anemic control participants without AD were included. The histologic prevalence of Hp-I was 88% in patients with AD and 46.7% in controls (p < 0.001).
OBJECTIVE To determine the frequency of Helicobacter pylori (H. pylori) infection in glaucoma patients and in anemic control participants. DESIGN Prospective, nonrandomized, comparative study. PARTICIPANTS The authors investigated 32 patients with chronic open-angle glaucoma (COAG), 9 patients with pseudoexfoliation glaucoma (PEG), and 30 age-matched(More)
BACKGROUND Pancreatitis is the most common major complication of diagnostic and therapeutic ERCP. Allopurinol, a xanthine oxidase inhibitor that blocks generation of oxygen-derived free radicals, potentially may prevent post-ERCP pancreatitis. This study assessed the efficacy of high-dose oral allopurinol for prevention of post-ERCP pancreatitis. METHODS(More)
AIM To detect the prevalence of small bowel polyps by wireless capsule endoscopy (WCE) in patients with familial adenomatous polyposis (FAP). METHODS We examined prospectively 14 patients with FAP to assess the location, size and number of small-intestinal polyps. Patients' age, sex, years of observation after surgery, type of surgery, duodenal polyps and(More)
AIM Although most patients with achalasia respond to pneumatic dilation, one-third experienced recurrence, and prolonged follow-up studies on parameters associated with various outcomes are scanty. In this retrospective study, we reported a 15-years' experience with pneumatic dilation treatment in patients with primary achalasia, and determined whether(More)