نتایج جستجو برای: pentagastrin
تعداد نتایج: 517 فیلتر نتایج به سال:
The effects of 1 and 4 micrograms/kg/h somatostatin on pentagastrin-stimulated gastric mucosal blood flow and acid secretion were investigated in 12 normal subjects and in 12 patients with cirrhosis of the liver. Each dose of somatostatin was given intravenously to six normal subjects and to six patients. Gastric mucosal blood flow was measured by the neutral red clearance of the stomach. Penta...
The importance of mucus layers and bicarbonate transport in preservation of gastric juxtamucosal pH.
Mucus thickness is suggested to be related to mucosal protection. We therefore investigated the importance of the removable mucous layer and epithelial bicarbonate transport in preservation of the gastric juxtamucosal pH (pH(jm)) during luminal acid. Anesthetized rats were prepared for intravital microscopy of the gastric mucosa, and pH(jm) was measured with pH-sensitive microelectrodes. The mu...
An in vitro bioassay for cholecystokinin which is superior to the previously described in vivo assays has been properly validated mathematically. The specificity of the assay has been assessed by measuring the potency of other polypeptides which share the same C-terminal pentapeptide sequence with cholecystokinin (gastrin, caerulin, octapeptide of cholecystokinin, and pentagastrin). The assay i...
A computerized data base with details of clinical history and examination as well as the results of a pentagastrin gastric acid stimulation test was established for 319 patients with radiological duodenal ulcers in the early 1970s. The patients were followed up during the next 10 years and divided into those who were, and were not, operated on. Originally 195 were operated on, as were a further...
BACKGROUND Calcitonin (CT) is a sensitive marker for evaluation of medullary thyroid cancer (MTC). However, CT measurement can vary with assay- and nonassay-dependent factors, and procalcitonin (PCT) measurement has been proposed for evaluating questionable increases in CT. METHODS We tested 2 fully automated CT assays (Immulite [IL] and Liaison [LIA]) and 1 nonautomated CT assay (IRMA, Medip...
The aquaporin-4 (AQP4) water channel has been proposed to play a role in gastric acid secretion. Immunocytochemistry using anti-AQP4 antibodies showed strong AQP4 protein expression at the basolateral membrane of gastric parietal cells in wild-type (+/+) mice. AQP4 involvement in gastric acid secretion was studied using transgenic null (-/-) mice deficient in AQP4 protein. -/- Mice had grossly ...
Noise is considered as one of the most severe sources of environmental and work place constraints. Noise effects on immune function, hormonal levels, cardiovascular and respiratory systems are well known. The aim of the study is to evaluate the effects of traffic noise on basal and stimulated gastric acid secretion. 48 healthy rats were divided into five traffic noise exposures (1, 7, 14, 21, 2...
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