Young-Tae Bak

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BACKGROUND AND AIM Environmental factors such as food, lifestyle and prevalence of Helicobacter pylori infection are widely different in Asian countries compared with the West, and physiological functions and genetic factors of Asians may also be different from those of Westerners. Establishing an Asian consensus for functional dyspepsia is crucial in order(More)
BACKGROUND AND AIMS Since the publication of the Asia-Pacific GERD consensus in 2004, more data concerning the epidemiology and management of gastroesophageal reflux disease (GERD) have emerged. An evidence based review and update was needed. METHODS A multidisciplinary group developed consensus statements using the Delphi approach. Relevant data were(More)
Adefovir dipivoxil (ADV) is commonly used as an antiviral agent in the treatment of chronic hepatitis B or human immunodeficiency virus infection. Nephrotoxicity has been shown to occur at daily dosages of 60-120 mg. Fanconi's syndrome is a generalized dysfunction of the renal proximal tubular cells, which is usually accompanied by complications. Here we(More)
BACKGROUND/AIMS Patients with type II diabetes mellitus (DM) were known to have higher prevalence of gastroesophageal reflux disease (GERD). Recent studies have shown that neuropathy has positive role on the development of GERD in type II DM, although its pathogenesis has not been fully understood yet. The aim of this study was to investigate whether(More)
AIM To evaluate the efficacy of cola treatment for gastric phytobezoars, including diospyrobezoars. METHODS A total of 17 patients (range: 48 to 78 years) with symptomatic gastric phytobezoars treated with cola and adjuvant endoscopic therapy were reviewed. Three liters of cola lavage (10 cases) or drink (7 cases) were initially used, and then endoscopic(More)
Degradation of the extracellular matrix is an essential step in tumor invasion and metastasis. It involves the actions of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs). We evaluated the expression of MMP-9 and TIMP-1 in gastric carcinomas and the relationship between this expression and tumor recurrence. Eighty(More)
BACKGROUND In contrast to Western countries, the prevalence of Barrett's esophagus (BE) is still believed to be very low in the Far East. The aim of the present paper was to assess the prevalence of BE in Korea. METHODS Nine hundred and ninety-two consecutive patients undergoing their first diagnostic upper gastrointestinal endoscopies due to various(More)
BACKGROUND AND AIMS Many of the ideas on irritable bowel syndrome (IBS) are derived from studies conducted in Western societies. Their relevance to Asian societies has not been critically examined. Our objectives were to bring to attention important data from Asian studies, articulate the experience and views of our Asian experts, and provide a relevant(More)
BACKGROUND AND AIMS In a previous study, the authors found that reduced expression of peroxisome proliferator-activated receptor (PPAR)-alpha might play an important role in developing nonalcoholic fatty liver disease (NAFLD). The aim of this study was to analyze the effects of PPAR-alpha and -gamma agonists on NAFLD and verify the mechanisms underlying the(More)
BACKGROUND Cytokeratin 7/20 staining has been reported to be helpful in diagnosing Barrett's oesophagus and gastric intestinal metaplasia. However, this is still a matter of some controversy. OBJECTIVE To determine the diagnostic usefulness of cytokeratin 7/20 immunostaining for short-segment Barrett's oesophagus in Korea. METHODS In patients with(More)