Biomaterial Database

Influence of biliary stasis on enterokinase activity in the rat. 1978

C L Morin, and V Ling

After 48 h of bile duct ligation, enterokinase activity in rat mucosa was significantly lowered in comparison with controls or rats with bile fistula. Rats with bile fistula were similar to controls. Sucrase levels were similar in all groups. Without endogenous trypsinogen, duodenal perfusion with a trypsinogen-containing solution led to more conversion to trypsin by controls. When their own pancreatic secretion was the source of trypsinogen, trypsin was much higher in perfusate from bile-ligated rats. Solubilized enterokinase was also higher in this group. These results indicate that bile stasis leads to decreased mucosal enterokinase activity and increased pancreatic function. The latter may have caused accelerated loss of enterokinase into the lumen, leading to lower mucosal levels.

UI	MeSH Term	Description	Entries
D007413	Intestinal Mucosa	Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI.	Intestinal Epithelium,Intestinal Glands,Epithelium, Intestinal,Gland, Intestinal,Glands, Intestinal,Intestinal Gland,Mucosa, Intestinal
D008026	Ligation	Application of a ligature to tie a vessel or strangulate a part.	Ligature,Ligations,Ligatures
D008297	Male		Males
D010179	Pancreas	A nodular organ in the ABDOMEN that contains a mixture of ENDOCRINE GLANDS and EXOCRINE GLANDS. The small endocrine portion consists of the ISLETS OF LANGERHANS secreting a number of hormones into the blood stream. The large exocrine portion (EXOCRINE PANCREAS) is a compound acinar gland that secretes several digestive enzymes into the pancreatic ductal system that empties into the DUODENUM.
D010450	Endopeptidases	A subclass of PEPTIDE HYDROLASES that catalyze the internal cleavage of PEPTIDES or PROTEINS.	Endopeptidase,Peptide Peptidohydrolases
D010477	Perfusion	Treatment process involving the injection of fluid into an organ or tissue.	Perfusions
D002779	Cholestasis	Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS).	Bile Duct Obstruction,Biliary Stasis,Bile Duct Obstructions,Biliary Stases,Cholestases,Duct Obstruction, Bile,Duct Obstructions, Bile,Obstruction, Bile Duct,Obstructions, Bile Duct,Stases, Biliary,Stasis, Biliary
D004765	Enteropeptidase	A specialized proteolytic enzyme secreted by intestinal cells. It converts TRYPSINOGEN into its active form TRYPSIN by removing the N-terminal peptide. EC 3.4.21.9.	Enterokinase
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001652	Bile Ducts	The channels that collect and transport the bile secretion from the BILE CANALICULI, the smallest branch of the BILIARY TRACT in the LIVER, through the bile ductules, the bile ducts out the liver, and to the GALLBLADDER for storage.	Bile Duct,Duct, Bile,Ducts, Bile