Objective(s) Ziziphora clinopodioides Lam. is a plant widely used in Iranian traditional medicine for gastrointestinal disorders. Several reports have demonstrated antibacterial (Helicobacteria pylori), antioxidant and anti‌inflammatory properties of Z. clinopodioides. The aim of this study was to investigate the effects of aqueous- ethanol extract of Z. clinopodioides on rat’s gastric acid ou...

The present study was performed to evaluate the anti-ulcerogenic activity of hyaluronic acid against ethanol induced gastric mucosal injury in rats. Four groups of adult Sprague Dawley rats were orally pretreated respectively with distilled water (ulcer control groups), omeprazole (reference group), high molecular weight hyaluronic acid and 0.8% hyaluronic acid gel (experimental groups) one hou...

A Peptic ulcer is a mucosal lesion of the stomach or duodenum in which the acid and pepsin play major pathogenic roles. The major forms of peptic ulcer are gastric ulcer and duodenal ulcer, both of which are chronic diseases often caused by Helicobacter pylori. The term peptic ulcer also encompasses gastric ulcers and duodenal ulcers associated with stress or the ingestion of drugs, most common...

Augmented histamine tests and gastric mucosal biopsies were performed on 97 patients. The amount of acid secreted was closely correlated with the histological appearances of the gastric mucosa. There was a striking difference between the acid secretion of patients with normal biopsies and patients with superficial gastritis. Achlorhydria was not present in patients with normal biopsies. An occa...

The influence of the vagal nerve on the inhibitory effect of neurotensin on pentagastrin stimulated gastric acid secretion was investigated in seven duodenal ulcer patients before and after parietal cell vagotomy without drainage. Preoperatively, neurotensin inhibited gastric acid secretion, whereas no effect was found postoperatively. Plasma concentration of neurotensin was identical pre-and p...

Effects of DQ-2511, a new peripherally acting anti-ulcer agent, on vagally induced gastric acid output and mucosal blood flow (MBF) were investigated in urethane-anesthetized rats with gastric fistula. Intravenous infusion of DQ-2511 (2 or 20 mg/kg/hr, for 30 min) reduced the vagally induced gastric acid output and MBF, and these inhibitory effects were abolished by pretreatment with phentolami...

SEKINE, T. and SHIRATORI, T. Significance of Local Circulatory Disturbance in the Experimental Production of Gastric Ulcer. Tohoku J. exp. Med ., 1974, 114 (2), 121-130 Experimental gastric ulcers were produced by ligating gastric vessels accompanied with or without histamine administration. A total of 62 adult mongrel dogs were divided into five groups, and intramuscular injection of histamine...

A histamine test meal is described for the estimation of the secretion of gastric acid and pepsin in the unanaesthetized intact rat. The stomach of the rat secreted pepsin and a small amount of acid in response to the test meal of hypertonic sucrose. Stimulation with histamine produced a pronounced rise in acid secretion but the output of pepsin remained unchanged. The increase in acid secretio...

Alcohol dehydrogenase (ADH) participates in the formation of retinoic acid from retinol in various organs including the gastric mucosa. However, its clinical significance still remains to be clarified. In this study, we identified the ADH isoforms responsible for the retinoic acid formation among various ADH isoforms and examined associations among the ADH activities, the retinoic acid formatio...

The inhibitory effect of intravenous secretin and intrajejunal acid infusion on basal and pentagastrin-induced gastric acid secretion as well as the stimulatory influence of both infusions on pancreatic flow rate and bicarbonate output were compared in two groups of healthy subjects. Secretin strongly inhibited basal acid output and slightly decreased pentagastrin induced gastric secretion. Int...