hydrogen sulfide (h2s) has been shown to protect the gastric mucosa through several protective mechanisms but till now its effect on mrna expression of sodium bicarbonate cotransporter 1 (nbc1), trefoil factor1 (tff1) and trefoil factor2 (tff2) was not investigated. this study was aimed to evaluate the effect of h2s on mrna expression of nbc1, tff1 and tff2 in rat gastric mucosa in response to ...

The total active transport of chloride ions across the gastric mucosa can be considered as the sum of two fractions; an acidic one which is equivalent to the acid secreted, and an electromotive one which accounts for the electric energy generated by the gastric mucosa. In the present studies, the relationship between this electromotive chloride transport and acid secretion has been investigated...

Parallel increments of gastric acid and pepsinogen secretion generally occur after the application of cholinergic stimuli. However, it still remains to be established whether the changes in acid output associated with cholinergic stimulation play a role in regulation of the concomitant peptic secretory activity. In the present study, an anesthetized rat model was used for the evaluation of peps...

A case of a 69 year old man in whom hypertrophic gastritis was associated with the carcinoid syndrome is reported. Concentrations of prostaglandin E2 were increased in plasma, gastric juice, gastric mucosa and urine. He had marked hypochlorhydria in response to pentagastrin stimulation (Peak acid output (PAO) pg:0.2 mmol/h). After successful hepatic arterial embolisation of the metastases (as i...

In the study to be described confirmation of the findings of Giles, Clark, and Buchan (1968) that the presence of acid in the lower oesophagus may stimulate gastric secretion has been sought. Also the influence of hiatal repair on the response to acid has been examined. The presence of acid in the lower oesophagus stimulates gastric secretion in man. The response to acid perfusion is greater in...

BACKGROUND The clinical significance of Helicobacter pylori antibody titer has been controversial, and the association between the extent of gastric atrophy or acid secretion and H. pylori antibody concentration has not been elucidated. MATERIALS AND METHODS Serum pepsinogen, H. pylori antibody concentration, and fasting gastric pH (as an indicator of acid secretion) were measured in 231 pati...

The total active transport of chloride ions across the gastric mucosa can be considered as the sum of two fractions; an acidic one which is equivalent to the acid secreted, and an electromotive one which accounts for the electric energy generated by the gastric mucosa. In the present studies, the relationship between this electromotive chloride transport and acid secretion has been investigated...

The rate of hydrochloric acid production by isolated, bullfrog gastric mucosae depends critically on the supply of chloride ion to the serosal surface. Secretion of acid is negligible if chloride is completely replaced by glucuronate and gluconate ion. The experimental evidence indicates that the rate of acid secretion may be regarded as a reaction velocity, depending on chloride concentration ...

In a recent report based on the study of a single human subject calcium was found to potentiate the action of pentagastrin on gastric acid secretion. To elucidate this problem gastric acid secretion was studied in five patients during stimulation with pentagastrin and during stimulation with pentagastrin and calcium. No potentiation between the two agents was found.