A number of in vivo studies indicate that alteration in dietary fat intake results in adaptation of exocrine pancreatic secretion. At the cellular level, the mechanism of this adaptation remains largely unknown. Dietary fats influence the lipid composition of plasma membranes in several tissues, including pancreas (Martinez et al. 2002), and this may, in turn, induce functional changes. This st...

Violation and discoordination of mental processes leads to changes in the ratio main neurotransmitters content further disorders. A significant role such is played by neuropeptides, particular anti-anxiety ones, which include cholecystokinin (CCK) its receptors. It has been established that stimulation CCK receptors modulates mesolimbic system reward, anxiety satiety. CCK-1 (the intestine) CCK-...

BACKGROUND Sphincter of Oddi dysfunction has been implicated as a cause of various forms of acute pancreatitis. However, there is no direct evidence to show that sphincter of Oddi dysfunction can cause obstruction of trans-sphincteric flow resulting in acute pancreatitis. AIMS To determine if induced sphincter of Oddi spasm can produce trans-sphincteric obstruction and, in combination with st...

An enzyme has been partially purified from canine and porcine cerebral cortical extracts that differs from trypsin in that it manifests some degree of hormone specificity since it converts porcine cholecystokinin to smaller immunoreactive forms, i.e., the COOH-terminal dodecapeptide and octapeptide fragments, but fails to convert big gastrin (34 amino acids) to heptadecapeptide gastrin. This en...

The effects of the cholecystokinin (CCK)-receptor antagonist proglumide, the protease inhibitor gabexate, and the hormones secretin and cholecystokinin-octapeptide (CCK-8) were studied in a model of acute hemorrhagic pancreatitis induced by feeding mice a choline-deficient, ethionine-supplemented (CDE) diet. Injections of gabexate and proglumide from initiation of CDE diet (before induction of ...

The amount and type of cholecystokinin (CCK) in duodenal extracts and plasma of celiac patients and normal subjects was studied by radioimmunoassay and gel filtration. In both groups there were similar patterns of molecular forms in extracts of duodenal biopsies, but concentrations in celiac disease were significantly depressed. In boiling water extracts of duodenal mucosa from both groups a fa...