(n.) The part of the small intestines between the stomach and the jejunum. See Illust. of Digestive apparatus, under Digestive.
Example Sentences:
(1) At the same time the duodenum can be isolated from the stomach and maintained under constant stimulus by a continual infusion at regulated pressure, volume and temperature into the distal cannula.
(2) However, there was not a relationship between the contraction curve of the gallbladder and the bile flow into the duodenum.
(3) The CL was also longer in the duodenum, whereas the CD was shortened, indicating a reduction of the wave movements from the stomach antrum to the duodenum in the ranitidine periods.
(4) Blunt trauma to the epigastrum may result in a retroperitoneal hematoma involving the head of the pancreas and descending duodenum.
(5) In both the gastric antrum and the duodenum, the first appearance of CCK-li preceded the functional activity of its target tissues.
(6) Although 25 Gy IORT plus 50 Gy EBRT was tolerated by the duodenum to 135 days, these doses may cause later pancreatic injury as an expression of damage to blood vessels and ducts.
(7) Peak serum insulin concentrations and integrated insulin secretion were also significantly greater with perfusion of the duodenum or proximal jejunum.
(8) The performed studies covered the effect of tuftsin, tetrapeptide stimulating many components of immunological reactions, to histamine concentration in lungs, kidneys, liver, duodenum as well as in the blood of rabbits and guinea-pigs.
(9) Experimental diversion of the bile flow from the lumen of the duodenum has little effect on the relative percentage of methadone vs. metabolites circulating in the blood.
(10) As many as 72 patients with erosive and ulcerous injuries to the stomach and duodenum were examined for the clinical efficacy of antepsin (sucralfate).
(11) The studies allow the interpretation that retention of food in the diverticula is not the reason for the bacterial miscolonization of the duodenum and the biliary tract, but in patients with diverticula a disturbed self-cleaning mechanism is present.
(12) The head and body of the pancreas between the stricture and the duodenum were normal.
(13) Metoprolol was introduced into the stomach with a homogenized meal containing a nonabsorbable marker, [14C]-PEG 4000, and another marker, PEG 4000, was perfused continuously into the duodenum just below the pylorus.
(14) Endoscopic evaluation of the stomach and duodenum was performed, with separate registration of the duodenum distally to the duodenal bulb.
(15) Varicose fibres were found in the myenteric plexuses of the duodenum, jejunum, ileum and colon.
(16) Villous tumors of the duodenum are rare, but treatment may be problematic because of their association with invasive adenocarcinoma.
(17) At pH 6.0, the pH of the duodenum, there is appreciable lipolytic activity in the presence of bile salts.
(18) During subsequent studies, hepatic bile flow was measured, and bile was returned to the duodenum through an externalized duodenal catheter.
(19) In 18 of the 118 stomachs the focal concentration of the parietal cells near the duodenum was greater than the other part of the antrum, reaching more than 50% of the parietal cells of the average fundic gland.
(20) Endoscopy and intragastral pH-metry were used to investigate the stomach and duodenum.
Pylorus
Definition:
(n.) The opening from the stomach into the intestine.
(n.) A posterior division of the stomach in some invertebrates.
Example Sentences:
(1) One hundred and two rats were subjected to one of following three surgical procedures: Antiperistaltic duodenogastric reflux (ADGR) was made for duodenal juice to reflux through the pylorus into the stomach.
(2) A series of alkylazulene-1-sodium sulfonate derivatives which has an isopropyl group at 6-position were synthesized, and their anti-ulcer activities were examined in Shay pylorus-ligated rats.
(3) Metoprolol was introduced into the stomach with a homogenized meal containing a nonabsorbable marker, [14C]-PEG 4000, and another marker, PEG 4000, was perfused continuously into the duodenum just below the pylorus.
(4) The dumping-syndrome is a severe complication of gastric surgery after operations which destroy or weaken the sphincter mechanism of the pylorus.
(5) The nonsulfated form of CCK-OP was about 2 to 3 log units less potent in eliciting these excitatory responses in the pylorus (threshold, 9 x 10(-10) mol).
(6) Sodium bicarbonate, chlorpromazine, hexamethonium, atropine, metiamide, and bilateral vagotomy markedly inhibited the stress ulcers which developed in the pylorus-ligated rats.
(7) The distances from the pylorus to the most proximal branch (proximal branch) and the most distal branch (distal branch) of the anterior antral branches were measured in 37 duodenal ulcer patients.
(8) Analyses of gastric juice withdrawn 3 hours after the pylorus was ligated and of plasma corticosterone and blood glucose after animals were exposed to rotational stress revealed that gastric secretion was highest in controls, intermediate in stressed rats that developed ulcers, and lowest in stressed rats that did not develop ulcers.
(9) Seven piglets (3 to 5 days old, 1.5 to 2.0 kg) underwent operative transgastric insertion of a duodenostomy tube placed just distal to the pylorus.
(10) When pentobarbital, a GABAA stimulant, was given to pylorus-ligated rats after recovery from ether anesthesia, the drug did not modify gastric acid secretion.
(11) Anterior lesser curve seromyotomy with posterior truncal vagotomy (ASPTV) provides a simple, safe and expeditiously performed method of denervating the parietal cell mass, whilst preserving the pylorus.
(12) Bipolar electrodes were implanted on the gastrointestinal serosa from the pylorus to the sigmoid colon in male Wistar rats.
(13) A necessary condition of pyloropreserving resection is the leaving of the pylorus zone not more than 2-3 cm.
(14) In five dogs, the stomach and duodenum were separated enterically by transecting and oversewing the proximal duodenum and by anastomosing a Roux-en-Y jejunal limb to the pylorus.
(15) Parasites escape from the ruptured region of the peritrophic membrane at the pylorus to gain access to the ectoperitrophic space, where intense multiplication occurs.
(16) Conservation of ileal pylorus, consequently has an effective action on the control of ileal leakage, protecting its mucosa from serious histopathologic changes.
(17) Some of these compounds inhibited at low doses gastric secretion in pylorus-ligated rats and antagonized ulcers in pylorus-ligated rats plus acetylsalicylic acid and in cold+restraint-stressed rats.
(18) It was found in these pylorus-ligated rats that: the number of visible gastric lesions was significantly higher 1 h after aspirin administration than at other times; the severity of gastric lesions increased significantly at the 3rd and 4th hour after administration of aspirin; the volume of gastric secretory responses increased gradually after administration of aspirin and to a higher extent than the H+ output; the H+ output was significantly less after aspirin administration than that after pylorus ligation only; the gastric mucosal SOD activity significantly increased 1 h after administration of aspirin, decreasing significantly and gradually thereafter; the tissue level of MDA remained unchanged 1 h after aspirin administration, decreasing significantly thereafter.
(19) Carotene was injected into the rumen of a ram after surgical ligation of the pylorus.
(20) Our objectives in this study were (a) to determine the role of antroduodenal resistance in the control of fasting duodenogastric bile reflux in the dog and (b) to elucidate the contribution of the pylorus both to resistance and to reflux.