background: ionizing radiation induces the production of reactive oxygen species (ros), which play an important causative role in cell death. wholebody exposure of mice to gamma radiation leads to diminution of tissue antioxidant defense systems increases the peroxidative damage to membrane lipids and damages the haematopoietic and gastrointestinal systems. tempol (tpl), a cell membranepermeabl...

Ghrelin, a peptide hormone, has several functions, of which the best known is its growth hormone (GH)-releasing effect in the pituitary. It also increases appetite and feeding behavior. Recent studies have implicated ghrelin in the regulation of gastrointestinal, cardiovascular, and immune function, and suggest a role for ghrelin in bone physiology. In this study, the effect of chronically admi...

ghrelin, a peptide hormone, has several functions, of which the best known is its growth hormone (gh)-releasing effect in the pituitary. it also increases appetite and feeding behavior. recent studies have implicated ghrelin in the regulation of gastrointestinal, cardiovascular, and immune function, and suggest a role for ghrelin in bone physiology. in this study, the effect of chronically admi...

Upper gastrointestinal tract mucosa is prone to injury. Drugs may disturb gastric mucosa protective mechanisms and cause damage. Injury by NSAIDs is a well described complication. Nifedipine, a widely used drug, was not described before as having a potential to damage gastrointestinal mucosa. We describe here, two patients, who developed esophageal and gastric mucosal damage, probably related t...

BACKGROUND Human gastrointestinal mucosa regenerates vigorously throughout life, but the factors controlling cell fate in mature mucosa are poorly understood. GATA transcription factors direct cell proliferation and differentiation in many organs, and are implicated in tumorigenesis. GATA-4 and GATA-6 are considered crucial for the formation of murine gastrointestinal mucosa, but their role in ...

The purpose of the present study is to confirm the protective effect of berberine (BBR) on gastrointestinal injury caused by acute heavy alcohol exposure, an effect that has not been reported previously. Our research details how BBR protects against gastrointestinal injuries from acute alcohol exposure using both in vivo and in vitro experiments. Acute high alcohol concentrations lead to obviou...

Interaction between epidermal growth factor (EGF) and gastrin on DNA synthesis of the rat gastrointestinal tract was examined. Fasted male rats were divided into four groups and injected with 10 μg/kg human EGF, 300 μg/kg pentagastrin, human EGF plus pentagastrin and saline (control), respectively. The animals were sacrificed 8 or 16 hr thereafter and the incorporation of [H]thymidine into the ...