(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.
Jejunum
Definition:
(n.) The middle division of the small intestine, between the duodenum and ileum; -- so called because usually found empty after death.
Example Sentences:
(1) Two hours after refeeding rats fasted for 48 h, ODC activity increased 40-fold in mucosa from the intact jejunum and 4-fold in the mucosa of the bypassed segments.
(2) The pathogenic effect of enterotoxogenic E. coli is mainly to be found in the jejunum.
(3) Conclusions derived from these studies are: 1) The model used is a valid means of studying in vivo luminal disappearance of PLP in the rat jejunum; 2) a major portion of the disappearance seems to involve hydrolysis by alkaline phosphatase; 3) a significant portion of this hydrolysis occurs intraluminally; and 4) a second mechanism of PLP disappearance, which is nonphosphatase-mediated, also appears operative and may represent absorption of the intact, phosphorylated vitamin.
(4) Peak serum insulin concentrations and integrated insulin secretion were also significantly greater with perfusion of the duodenum or proximal jejunum.
(5) Of four normal tissues assessed, two (hair follicles and tissues responsible for development of leg contractures) showed no change in radioresponse after treatment with indomethacin, one (hematopoietic tissue) exhibited radioprotection, and one (jejunum) exhibited slight radiosensitization (enhancement factor, 1.12).
(6) Type II had the anastomosis too high on the gastric pouch, type III was due to an obstructing marginal ulcer, and type IV had a pouchlike deformity develop in the upper jejunum at the anastomosis that gradually compressed the outflow tract.
(7) In short-term studies, luminal biotin disappearance from rat ileum was about half that observed in the jejunum, whereas absorption by proximal colon was about 12% of that in the jejunum.
(8) Varicose fibres were found in the myenteric plexuses of the duodenum, jejunum, ileum and colon.
(9) We report a case of a neuroendocrine tumor of the jejunum metastatic to the liver in a 26-year-old woman.
(10) The present study examined these ethanol-induced changes in the jejunum by scanning (SEM) and transmission (TEM) electron microscopy.
(11) Transection alone resulted in a decrease in slow-wave frequency, a shortening of the period of the interdigestive myoelectrical complex (IDMEC) and a prolongation of phase III of the IDMEC in the jejunum distal to the site of transection.
(12) The incorporation rate of [3H]thymidine in the proximal colon and jejunum was not different in control and treated rats, indicating the absence of an effect of EGF on DNA synthesis.
(13) In brush border fractions, specific activities of sucrase and BBFC were significantly greater in the jejunum in continuity than in the control or bypass jejunum.
(14) Guinea pigs and rats drinking cow's milk ad libitum have had the contents of their stomach, duodenum, jejunum and ileum examined for antigenically native, undigested beta-lactoglobulin and casein.
(15) For the amino acids tested--beta-alanine, leucine, lysine, MeAIB, proline--and for D-glucose, the rates of transport at constant concentrations increase from very low values in the proximal jejunum to maximum values in the most distal 30 cm of the ileum.
(16) On the basis of favorable results recently reported in literature with cimetidine in the prevention and therapy of upper gastrointestinal haemorrhages, the Authors have treated a patient with severe haemorrhage from acute gastric ulcer arised after jejunum-ileal massive resection for mesenteric infarction.
(17) If the gastro-duodenal changes occur together with the typical appearances in the jejunum, ileum and colon, then the diagnosis can be made by radiology alone.
(18) Compared to fiber-free, feeding corn bran increased binding in the duodenum 30% and ileum 50% but decreased binding in the jejunum 44%, and feeding guar gum increased binding in the colon 73% but decreased binding in the jejunum 40%.
(19) Lesions consisted of a necrotic-like enteritis that was most severe in the jejunum.
(20) Changes in cell electrolytes (increased Na+ and decreased K+) were observed only in the jejunum of old rats.