Adding proton pump inhibitors (PPIs) to endoscopic therapy has become the mainstay of treatment for peptic ulcer bleeding, with current consensus guidelines recommending high-dose intravenous (IV) PPI therapy (IV bolus followed by continuous therapy). However, whether or not high-dose PPI therapy is more effective than low-dose PPI therapy is still debated. Furthermore, maintaining pH ≥ 4 appea...

Gastrostomy site infections following percutaneous endoscopic gastrostomy (PEG) are the most common complication after PEG placement. Recent meta-analyses were able to show that PEG site infections can be reduced significantly with a systemic antimicrobial prophylaxis. This mostly cephalosporin- or penicillin-based prophylaxis does not cover fungal infections. Although Candida skin infections a...

Because thromboxane synthesis enhances gastric mucosal damage we have investigated whether the thromboxane synthesis inhibitor dazmegrel might be protective to the mucosa. Dazmegrel at a dose of 1 and 5 mg per rat (4.8 and 23.8 mg/kg) significantly reduced the damage caused by acidified taurocholate. In parallel experiments dazmegrel exerted a selective and dose dependent inhibition of ex vivo ...

Barnes, G. L., and Townley, R. R. W. (1973). Archives of Disease in Childhood, 48, 343. Duodenal mucosal damage in 31 infants with gastroenteritis. Duodenal biopsies taken in the acute stage of gastroenteritis in 31 infants have shown histological abnormality and disaccharidase depression in the majority. In 5, mucosal damage was severe with changes similar to those seen in coeliac disease. Rep...

In the present study, we examined the gastroprotective effect of selenium against ethanol-induced gastric mucosal lesions in rats. The gastric mucosal lesions were produced by oral administration with various concentrations of ethanol for three days, and 80% ethanol treatment was determined to be the optimal condition for induction of gastric damage. To identify the protective effect of seleniu...

This study examined the effects of indomethacin and rofecoxib on normal and Helicobacter pylori (H. pylori)-infected gastric mucosa of Mongolian (M.) gerbils. M. gerbils (6-wk-old) were orally administered H. pylori (ATCC43504, 2 x 10(8) CFU/ml) after fasting for 24 hours. Beginning 3 mo after inoculation, indomethacin (2 mg/kg, s.c) or rofecoxib (10 mg/kg, p.o.) was administered once daily for...

Recent results from our laboratory,'-3 as well as data reported by others,4' have shown that gastroduodenal blood flow functions not only provide 0210 and substrates, but also deliver HCO3 to the mucosa. This may be of particular relevance to the pathogenesis of stress ulceration. Sepsis and haemorrhagic shock are frequently associated with systemic acidosis and reduced arterial HCO3 concentrat...

This article reviews the pathogenic mechanism of non-steroidal anti-inflammatory drug (NSAID)-induced gastric damage, focusing on the relation between cyclooxygenase (COX) inhibition and various functional events. NSAIDs, such as indomethacin, at a dose that inhibits prostaglandin (PG) production, enhance gastric motility, resulting in an increase in mucosal permeability, neutrophil infiltratio...