Abstract:
BACKGROUND:Whether long-term octreotide treatment given to portal hypertensive rats could prevent or ameliorate peripheral vasodilatation and thereby modify sodium retention was investigated. METHODS:Starting at the time of partial portal vein ligation or sham operation, rats received a 4-day course of either octreotide (15 micrograms/kg in 5% dextrose in water) or placebo (5% dextrose in water) subcutaneously every 8 hours. RESULTS:In portal hypertensive rats, octreotide induced a 13% increase in mean arterial pressure (P < 0.01) and a 19% increase in total peripheral resistance (P < 0.01). Octreotide treatment induced a decrease in extracellular sodium space (22Na injection) (34.2 +/- 0.5 vs. 36.7 +/- 0.4 mL/100 g; P < 0.01) without changes in serum sodium level. In addition, octreotide treatment significantly reduced portal pressure as well as glucagon levels and plasma renin activity. In contrast, octreotide treatment had no effect on mean arterial pressure and extracellular sodium space in shamoperated rats. CONCLUSIONS:Long-term octreotide treatment ameliorated peripheral vasodilatation and sodium retention only in portal hypertensive rats. These findings suggest that in portal hypertension sodium retention can be modified by pharmacological agents that affect peripheral vasodilatation. The specificity of octreotide's effect sheds additional light into the vasodilatory syndrome associated with portal hypertension in liver diseases.
journal_name
Gastroenterologyjournal_title
Gastroenterologyauthors
Albillos A,Colombato LA,Lee FY,Groszmann RJdoi
10.1016/0016-5085(93)90429-gsubject
Has Abstractpub_date
1993-02-01 00:00:00pages
575-9issue
2eissn
0016-5085issn
1528-0012pii
0016-5085(93)90429-Gjournal_volume
104pub_type
杂志文章相关文献
GASTROENTEROLOGY文献大全abstract:BACKGROUND AND AIMS:Tumor necrosis factor (TNF) is a cytokine that promotes inflammation and contributes to pathogenesis of inflammatory bowel diseases. Unlike other cells and tissues, intestinal epithelial cells undergo rapid cell death upon exposure to TNF, by unclear mechanisms. We investigated the roles of inhibito...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1053/j.gastro.2016.11.019
更新日期:2017-03-01 00:00:00
abstract::Partial obstruction of the opossum esophagus leads to thickening of the circular muscle, hypertrophy of smooth muscle cells, and diminution of the extracellular space. The pharmacological and electrophysiological properties of this hypertrophied muscle were studied. Carbachol produced phasic and tonic contractions of ...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(91)90522-m
更新日期:1991-09-01 00:00:00
abstract::Interleukin 2, a soluble product of activated T lymphocytes, is of central importance in the development of an appropriate T-cell immune response. Defects in the production of or response to this lymphokine have been described in a variety of immune deficiency and autoimmune states, thus suggesting a role in the patho...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1984-04-01 00:00:00
abstract:BACKGROUND & AIMS:In 1988, we reported the first twin study in inflammatory bowel disease. The aim of the current study was to follow up these twins regarding new cases of inflammatory bowel disease and Crohn's disease characteristics using the Vienna classification. METHODS:The official Swedish population register an...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/s0016-5085(03)00385-8
更新日期:2003-06-01 00:00:00
abstract::A rapid immunohistochemical method using 5'-bromo-2'-deoxyuridine (BrdU), a thymidine analog, for labeling proliferating epithelial cells was modified and tested for accuracy against standard tritiated thymidine autoradiography (3H-TdR) in rat esophagus, stomach, duodenum, and colon. Either BrdU or 3H-thymidine or bot...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(91)90610-w
更新日期:1991-01-01 00:00:00
abstract::Gastrointestinal symptoms occur in a large number of patients with food allergies. Immediate hypersensitivity mechanisms may give rise to the nausea, vomiting, abdominal pain, and diarrhea experienced by these patients. However, there are limited human data about the pathophysiological basis for these symptoms. Most o...
journal_title:Gastroenterology
pub_type: 杂志文章,评审
doi:10.1016/0016-5085(92)90047-3
更新日期:1992-09-01 00:00:00
abstract::Spontaneous remission of gastric acid hypersecretion in the Zollinger-Ellison syndrome occurs rarely. This study shows the development of gastric secretory mucosal atrophy resulting in achlorhydria and loss of pepsin secretion in a 63-year-old woman with the Zollinger-Ellison syndrome. Reduced secretion began soon aft...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(91)90484-3
更新日期:1991-07-01 00:00:00
abstract:BACKGROUND/AIMS:A double-blind, placebo-controlled trial of ursodeoxycholic acid (UDCA) was conducted in 180 patients with primary biliary cirrhosis (PBC) to define the efficacy and safety of UDCA. Efficacy was assessed by time to treatment failure defined as death; liver transplantation; histological progression; deve...
journal_title:Gastroenterology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/0016-5085(94)90021-3
更新日期:1994-05-01 00:00:00
abstract::Previous studies have suggested that Giardia infections are cleared immunologically, but have not defined the mechanism of clearance. The aim of the present work was to compare subpopulations of leukocytes harvested from the intestinal lumen of immunocompetent BALB/c mice, which clear Giardia muris infection rapidly, ...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(85)90656-0
更新日期:1985-12-01 00:00:00
abstract::Three analogues of the carboxyl-terminal tricosapeptide of secretin (S5-27), one with glutamine replacing glutamic acid in position 9 (9-Gln-S5-27), a second with asparagine substituted for aspartic acid in position 15 (15-Asn-S5-27), and a third with both replacements (9-Gln-15-Asn-S5-27) were tested for their abilit...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1976-12-01 00:00:00
abstract::Weight gain and obesity are major risk factors for conditions and diseases ranging from insulin resistance and type 2 diabetes mellitus to atherosclerosis and the sequelae of nonalcoholic fatty liver disease. A chronic, subacute state of inflammation often accompanies the accumulation of excess lipid in adipose tissue...
journal_title:Gastroenterology
pub_type: 杂志文章,评审
doi:10.1053/j.gastro.2007.03.059
更新日期:2007-05-01 00:00:00
abstract:BACKGROUND & AIMS:Regenerating (Reg) gene IV is predominantly expressed in gastrointestinal cells and highly up-regulated in many gastrointestinal malignancies, including colorectal cancer (CRC). Human CRC cells expressing higher levels of Reg IV gene and its protein product (Reg IV) are resistant to conventional thera...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1053/j.gastro.2009.10.050
更新日期:2010-02-01 00:00:00
abstract::Intramural pH of the gastric mucosa was measured using a microelectrode technique in rabbit gastric pouches under different secretory conditions and luminal acidity. Exposure of spontaneously secreting or metiamide-treated fundic pouches to a relatively high concentration of luminal acid. HCl 120 mM, for 60 min, led ...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1978-10-01 00:00:00
abstract:BACKGROUND & AIMS:Approximately half of the families that fulfill Amsterdam criteria for Lynch syndrome or hereditary nonpolyposis colorectal cancer (HNPCC) do not have evidence of the germline mismatch repair gene mutations that define this syndrome and result in microsatellite instability (MSI). The carcinogenic path...
journal_title:Gastroenterology
pub_type: 杂志文章,多中心研究
doi:10.1053/j.gastro.2010.01.035
更新日期:2010-05-01 00:00:00
abstract::Pharmacologic and surgical procedures were used to define the neurohumoral pathways that mediate stress-induced changes in gastrointestinal transit in the rat. Physical restraint (a validated stressor) resulted in significant inhibition of gastric emptying and small bowel transit but in stimulation of large bowel tran...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(89)91439-x
更新日期:1989-07-01 00:00:00
abstract:BACKGROUND:Mutant hepatitis B virus is often associated with severe liver damage. The purpose of this study is to elucidate the relationship between mutations in hepatitis B precore/core gene and the severity of liver damage. METHODS:The hepatitis B precore/core gene from 20 patients with chronic hepatitis B virus inf...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(93)90861-6
更新日期:1993-01-01 00:00:00
abstract::Phenobarbital response, bile pigment composition, and the fractional biliary excretion ratio of bilirubin were studied in nine children with Crigler-Najjar disease. In five children, serum bilirubin levels decreased during phenobarbital treatment by 26% or more and the pigment composition in bile changed with a decrea...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(91)80026-6
更新日期:1991-03-01 00:00:00
abstract::Colonic and intestinal alkaline phosphatase were studied histoenzymatically and biochemically in normal mucosae from eight hemicolectomy specimens. Histochemically, the most intense reaction was found in the small intestine, followed by vascular endothelium and colonic epithelium, respectively. The reaction was strong...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1982-06-01 00:00:00
abstract::To define a potential role for the angiotensin system in Crohn's colitis, the colonic mucosal levels of angiotensin I and II were measured in endoscopic biopsy samples from patients with active Crohn's colitis (n = 20), ulcerative colitis (n = 13), other forms of colitis (n = 3), and normal controls (n = 17). Colonic ...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(90)91088-n
更新日期:1990-06-01 00:00:00
abstract::Vascular casts of human oxyntic mucosa, examined by scanning electron microscopy, revealed that (a) arterial breakup occurs only at the submucosal aspect of the mucosa, there being no arterial vessels further into the mucosa and (b) mucosal capillaries drain into the infrequent mucosal venules only in the most luminal...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1984-05-01 00:00:00
abstract::Using a newly developed radioimmunoassay for porcine gastrin-releasing peptide in plasma, we studied the pharmacokinetics of this peptide after infusing it into pigs at two dose levels. The disappearance of the peptide from plasma was characterized by two components, a fast one (t 1/2 1.4 min) and a slow one (t 1/2 6....
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract:BACKGROUND & AIMS:Entecavir (ETV) and tenofovir disoproxil fumarate (TDF) are potent antiviral agents that might have additive or synergistic antiviral activity in treatment of patients with chronic hepatitis B (CHB). We compared the efficacy and safety of ETV monotherapy with those of a combination of ETV and TDF. ME...
journal_title:Gastroenterology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1053/j.gastro.2012.05.037
更新日期:2012-09-01 00:00:00
abstract::A case of primary liver cell carcinoma is presented in which tumor emboli to the pulmonary microvasculature resulted in pulmonary hypertension, documented by clinical, radiologic, electrocardiographic, and cardiac catheter studies. Emboli arose from tumor invading the portal vein and passed via a patent splenorenal sh...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1984-11-01 00:00:00
abstract:BACKGROUND/AIMS:Intestinal distention induces perception and gut reflexes via sympathetic and vagal pathways, but the modulatory mechanisms of such responses remain obscure. The aim of this study was to determine the effects of sympathetic nervous activity on sympathetic and vagal reflexes as well as on intestinal and ...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1016/0016-5085(95)90439-5
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND & AIMS:The cyclic adenosine monophosphate (cAMP) and Ca(2+) signaling pathways synergize to regulate many physiological functions. However, little is known about the mechanisms by which these pathways interact. We investigated the synergy between these signaling pathways in mouse pancreatic and salivary glan...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1053/j.gastro.2013.03.047
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND & AIMS:Liver disease has been associated with cardiovascular disorders, but little is known about the relationship between serum levels of alanine aminotransferase (ALT) and markers of atherogenesis. We investigated the relationship between low-normal and high-normal levels of ALT and an extended panel of ca...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1053/j.gastro.2013.08.036
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND & AIMS:The absence of grade A supporting evidence for surveillance colonoscopy in patients with ulcerative colitis (UC) has led to controversy regarding its benefit, yet it is routinely recommended in practice guidelines. Limited data are available on rates of colonoscopy surveillance and factors associated ...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1053/j.gastro.2010.07.039
更新日期:2010-11-01 00:00:00
abstract::This study was conducted to determine whether short-term (1.75 h) luminal glucose perfusion increases the mucosal protein synthesis rate in rat small intestine. A luminal perfusate containing 56 mM glucose was compared with a control perfusate containing mannitol in two jejunal segments constructed in the same animal....
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract::Human gastrointestinal cancer xenografts were established in the nude mouse. Grafts were accomplished with gastric adenocarcinomas, gastric leiomyosarcoma, histiocytic lymphoma of the stomach and gallbladder, pancreatic tumors, colonic cancers and cell lines of duodenal (HUTU-80) and pancreatic (HS-766-T) cancers, mel...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:
更新日期:1977-05-01 00:00:00
abstract:BACKGROUND & AIMS:The mechanisms for tissue regeneration and renewal after acute pancreatitis are not well understood but may involve activation of Notch signaling. To study the effect of Notch signaling ablation during acute experimental pancreatitis, we used a chemical and genetic approach to ablate Notch signaling i...
journal_title:Gastroenterology
pub_type: 杂志文章
doi:10.1053/j.gastro.2007.11.003
更新日期:2008-02-01 00:00:00