نتایج جستجو برای: pancreatic ducts
تعداد نتایج: 93167 فیلتر نتایج به سال:
Polycystic kidney disease (PKD) includes a group of disorders that are characterized by the presence of cysts in the kidney and other organs, including the pancreas. Here we show that in orpk mice, a model system for PKD that harbors a mutation in the gene that encodes the polaris protein, pancreatic defects start to occur at the end of gestation, with an initial expansion of the developing pan...
Pancreas divisum is a common congenital abnormality of the pancreas that results from the lack of fusion between the dorsal and ventral pancreatic ducts during foetal development. In these cases, the dorsal duct becomes the main pancreatic duct and drains most of the pancreas. Pancreas divisum is mainly asymptomatic, but the prevalence of pancreas divisum is higher in patients with chronic abdo...
Lineage tracing follows the progeny of labeled cells through development. This technique identifies precursors of mature cell types in vivo and describes the cell fate restriction steps they undergo in temporal order. In the mouse pancreas, direct cell lineage tracing reveals that Pdx1- expressing progenitors in the early embryo give rise to all pancreatic cells. The progenitors for the mature ...
BACKGROUND The peculiar anatomy of pancreatic ducts in pancreas divisum (PD) may interfere with the development of acute chronic pancreatitis. In the presented case, PD influenced the evolution of lesions after pancreatic trauma. CASE PRESENTATION A 38 years old patient refferred to our hospital with recurrent episodes of mild pancreatitis during the last two years. The first episode occurred...
Increasing evidence suggests that protein-protein interaction is essential in many biological processes including epithelial transport. In this report, we discuss the significance of protein interactions to HCO(3)(-) secretion in pancreatic duct cells. In pancreatic ducts HCO(3)(-) secretion is mediated by cystic fibrosis transmembrane conductance regulator (CFTR) activated luminal Cl(-)/HCO(3)...
Pancreatic duodenal homeobox-1 (Pdx1), a transcription factor required for pancreatic development and maintenance of β-cell function, was assessed for a possible role in postnatal β-cell formation from progenitors in the pancreatic ducts by selectively deleting Pdx1 from the ducts. Carbonic anhydrase II (CAII)(Cre);Pdx1(Fl) mice were euglycemic for the first 2 postnatal weeks but showed moderat...
We report a case of pancreatolithiasis in which glucose intolerance and malnutrition were significantly improved after starting oral litholysis therapy (OLT) with use of trimethadione. A 43-year-old female with multiple calcified stones in the main and peripheral pancreatic ducts had experienced recurrent and severe attacks of pain for 7 years (from 21 to28 years of age). Impaired glucose toler...
Pain in chronic pancreatitis is supposed to be multifactorial in origin. Pancreatic duct/tissue hypertension is today proved in patients with chronic pancreatitis and pain. Duct drainage reportedly normalizes pancreatic duct/tissue pressure and reduces pain in 70% of the patients. Also, duct drainage by endoscopy may relieve pain. Surgical duct decompression is parenchyma-preserving and even su...
Cystic tumours of the pancreas are relatively rare and are frequently misdiagnosed as pancreatic pseudocysts. The three cases described below demonstrate some of the typical presenting features of these lesions and emphasise the importance of correct diagnosis and treatment. CASE REPORTS Case 1 A 35 year old previously healthy woman presented with left subcostal pain. Ultrasound revealed a 10 c...
The ampulla of Vater represents the epithelial junction of the main pancreatic duct and the distal bile duct, surrounded by the pancreatic head and duodenum parenchyma. Ampullary carcinoma can arise either from the intestinal epithelium or the epithelium covering the pancreatobiliary ducts. Many tumors develop from pre-existing adenomas, others evolve from precursor intraepithelial neoplasia su...
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