Abstract:
:It is known that the muscularis mucosae and mucosa are not pharmacologically homogeneous throughout the rat colon. The aim of this study was to simultaneously characterize all three neurokinin (NK) receptors in the muscularis mucosae and mucosa along the length of the rat colon. Strips of proximal, mid, and distal colonic muscularis mucosae were prepared for isometric recording or sheets of muscle-free mucosa were mounted in Ussing chambers for measurement of short-circuit current. In both muscularis mucosae and mucosa the greatest responses to substance P were found in the proximal region. Use of selective agonists revealed the presence of all three NK receptors in both structures, however, selective antagonism suggests that only NK2 receptors in the muscularis mucosae and NK1 receptors in the mucosa are physiologically relevant. In conclusion, substance P-induced responses in the rat colon are region-specific and not mediated by a single NK receptor subtype common to both structures.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Appleyard CB,Morales M,Percy WHdoi
10.1007/s10620-006-3163-6subject
Has Abstractpub_date
2006-03-01 00:00:00pages
506-16issue
3eissn
0163-2116issn
1573-2568journal_volume
51pub_type
杂志文章abstract:BACKGROUND:Liver metastasis is an indicator of unfavorable responses to immunotherapy in colorectal cancer patients. However, the difference of immune microenvironment between primary tumors and liver metastases has not been well understood. PATIENTS AND METHODS:Fifty-four colon cancer with liver metastasis patients w...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-020-06203-8
更新日期:2020-03-19 00:00:00
abstract:BACKGROUND:Average-risk women aged 50-59 years have a lower incidence and mortality of colorectal cancer relative to age-matched men, calling into question the benefit of screening colonoscopy in this age group. AIMS:We aimed to determine whether FOBT is an effective initial screening test in 50-59-year-old women. ME...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-018-5156-7
更新日期:2018-10-01 00:00:00
abstract::The present study investigated how reflux-induced esophagitis affects the smooth muscle reactivity of the esophageal body. Two different esophagitis models were used: acid gastric and mixed duodenogastric reflux. All test animals apart from the controls developed gross and histologic evidence of esophagitis. Contracti...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/b:ddas.0000004518.98825.6c
更新日期:2003-11-01 00:00:00
abstract::The practice of following benign-appearing gastric ulcers until healing was critically evaluated in a retrospective manner by reviewing all gastric ulcers that were followed with serial endoscopy and all gastric cancers diagnosed at the University of Alabama at Birmingham. The stated purpose of following ulcers to hea...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01307545
更新日期:1993-02-01 00:00:00
abstract::We have previously shown that methane on lactulose breath test (LBT) is highly associated with constipation in IBS and that methane gas itself slows small bowel transit in dogs. Previous studies suggest that serotonin may have a role in the control of transit in IBS. In this study, we aim to evaluate the role of serot...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/b:ddas.0000011607.24171.c0
更新日期:2004-01-01 00:00:00
abstract::Rebamipide, a gastroprotective drug, is a compound selected from over 500 amino acid analogs of 2(1H)-quinolinone tested for gastroprotective action and for efficacy to heal experimental gastric ulcers. This drug stimulates prostaglandin generation in gastric mucosa and improves not only the speed but also the quality...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:
更新日期:1998-09-01 00:00:00
abstract::Sera from Japanese patients with chronic liver disease were tested for hepatitis B virus (HBV) markers and antibodies to hepatitis C virus (anti-HCV), and the results were correlated to the presence of hepatocellular carcinoma. In chronic non-A, non-B liver disease, anti-HCV prevalence was high both in patients with h...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01308344
更新日期:1992-01-01 00:00:00
abstract::Irritable bowel syndrome is a frequent gastrointestinal disorder of unknown etiology. The serotonin transporter regulates the intensity and duration of serotonin signaling in the gut and is, therefore, an attractive candidate gene for irritable bowel syndrome. Previous studies investigating the 5-HTTLPR and Stin2 VNTR...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-008-0666-3
更新日期:2009-12-01 00:00:00
abstract::Possible differences in the abilities of esophageal body and lower esophageal sphincter muscles to utilize substrates to support agonist-induced contractions were studied. Strips of longitudinal, circular, and lower esophageal sphincter muscle from the opossum esophagus were first contracted to approximately 70% of th...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01297447
更新日期:1991-08-01 00:00:00
abstract::Using northern blot analysis and immunohistochemistry, we assessed the expression and distribution of human epidermal growth factor receptor-1 (HER-1), HER-2, and HER-3 in pancreatic tissues obtained from patients with acute pancreatitis (AP). Overall, HER-1, HER-2, and HER-3 mRNA levels were similar in the normal pan...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02208997
更新日期:1995-10-01 00:00:00
abstract:BACKGROUND:The aim of this retrospective study was to evaluate the success rate and complications of three precut techniques of sphincterotomy after failure of conventional techniques of cannulation of common bile duct (CBD). PATIENTS AND METHODS:Between January 2003 and October 2011, 2,903 consecutive ERCPs were perf...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-012-2271-8
更新日期:2012-12-01 00:00:00
abstract::The ascitic fluid concentrations of cholesterol and fibronectin and the serum-ascites albumin difference were compared with two conventional tests of ascitic fluid, total protein and LDH, in their diagnostic ability for detection of malignancy in ascitic samples from 69 patients with ascites: 54 with ascites due to li...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01550972
更新日期:1988-07-01 00:00:00
abstract:OBJECTIVE:This study focused on unhealed gastrocutaneous fistulas to resolve whether standard drugs that promote healing of gastric ulcers may simultaneously have the same effect on cutaneous wounds, and corticosteroid aggravation, and to demonstrate why peptides such as BPC 157 exhibit a greater healing effect. Theref...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-008-0332-9
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND AND STUDY AIMS:Use of ultrathin (ut) endoscopes is sometimes limited by their design (outer diameter, tip angulation and image quality). New ut-endoscopes are being designed to address these limitations. A new ut-endoscope, XGIF-PV70N5 (Olympus America Inc.), with an outer diameter of 5.5 mm, 4-way angulatio...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-010-1344-9
更新日期:2011-03-01 00:00:00
abstract::MR enteroclysis is becoming a very important imaging modality in the workup and follow-up of small bowel diseases. The technique has many advantages, including the absence of ionizing radiation, ability to control luminal distension, superior tissue characterization, multiplanar capabilities, and mural and extramural ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-005-2700-z
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:Obesity is considered a risk factor for other chronic diseases, and diets rich in lipids can cause alterations in the intestinal functions. AIM:The aim of this study was to investigate the effects of a high-fat diet (HFD) on the myenteric plexus of the large intestine in mice. METHODS:Swiss mice were distr...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-014-3402-1
更新日期:2015-04-01 00:00:00
abstract::This study investigated the effects of portal hypertension on gastric motor and secretory functions and the role of endothelin in rats. Control; sham-operated; endothelin-A receptor blocker, BQ 485 (1 microgram/kg)-treated; portal hypertensive; and portal hypertension +, endothelin-A receptor blocker-treated rats were...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02282345
更新日期:1996-03-01 00:00:00
abstract::Concentration and voltage dependence of Mg transport across the rat duodenum was measured in an Ussing chamber. Mucosa (m) to serosa (s) Mg flux exhibits a cellular fraction comparable to that found for Ca. Mg sm flux is purely diffusive and probably restricted to the paracellular pathway. At all concentrations betwee...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01296406
更新日期:1991-11-01 00:00:00
abstract::Concentration and voltage dependence of unidirectional Mg fluxes across the rat colon ascendens were measured in a modified Ussing chamber. Mucosa (M) to serosa (S) Mg flux exhibits a cellular component, whereas SM flux is totally diffusive. At all the concentrations between 0.125 and 8 mmol/liter MS Mg transport is h...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01536699
更新日期:1989-12-01 00:00:00
abstract::Infection with Helicobacter pylori is associated with the development of gastric cancer. To study whether the infection with H. pylori strains expressing the vacuolating cytotoxin (VacA) and/or the cytotoxin-associated protein (CagA) is associated with an increased risk of developing gastric adenocarcinoma, sera of 90...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1018849112533
更新日期:1997-08-01 00:00:00
abstract::Twenty-four patients with chronic active HCV infection, nonresponders to a previous treatment cycle with recombinant interferon-alpha (r-IFNA), underwent retreatment with leukocyte (LE-) IFN-alpha. This was administered at the dose of 3 MU three times a week, for either six months (group A) or 12 months (group B). All...
journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1023/a:1026693901012
更新日期:1998-10-01 00:00:00
abstract::Our aim was to investigate whether there are changes in permeability to sucrose in asymptomatic Helicobacter pylori gastritis. Nineteen asymptomatic subjects with Helicobacter pylori-associated gastritis with no or mild mucosal atrophy and 19 age- and sex-matched normal controls were studied by peroral load of sucrose...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1018809913230
更新日期:1998-04-01 00:00:00
abstract::The changes in plasma and duodenal cholecystokinin (CCK) concentrations after pancreatic duct occlusion were examined in rats. The rats were sacrificed 1, 3, 7, 10, 14, and 30 days after occlusion of the duct. Histological examination showed acute inflammation on days 1 and 3 after duct occlusion, interstitial fibrosi...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01307730
更新日期:1992-03-01 00:00:00
abstract:BACKGROUND:Industrialization has been linked to the etiology of inflammatory bowel disease (IBD). AIM:We investigated the association between air pollution exposure and IBD. METHODS:The European Prospective Investigation into Cancer and Nutrition cohort was used to identify cases with Crohn's disease (CD) (n = 38) an...
journal_title:Digestive diseases and sciences
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doi:10.1007/s10620-016-4249-4
更新日期:2016-10-01 00:00:00
abstract::Morin, a plant-derived flavonoid, has been reported to exhibit a wide range of pharmacological properties. In this study, we investigated the protective effect of morin on hepatic fibrosis induced by dimethylnitrosamine (DMN) in rats. Oral administration of morin remarkably prevented weight loss in the body and liver ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-008-0404-x
更新日期:2009-04-01 00:00:00
abstract::Low or minimal doses of aspirin are widely used for prevention of cardiovascular diseases. Aspirin is known to produce severe adverse gastrointestinal effects, such as bleeding and perforation. Less is known about the risk associated with minidose aspirin. Our aim was to assess the possible association of upper gastro...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-005-2906-0
更新日期:2005-09-01 00:00:00
abstract::The efficacy of tiotidine, a new H2-receptor antagonist, in reducing nocturnal acid secretion of duodenal ulcer patients (N = 12, ages 21-60 years) was investigated. Different doses of tiotidine, 25, 50, 100, and 150 mg or placebo, were given as a single oral dose and acid secretion collected overnight. Tiotidine prod...
journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章
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更新日期:1981-05-01 00:00:00
abstract:BACKGROUND:Gastroparesis is a heterogeneous disorder. Patient characteristics and treatment responsiveness may differ based on the extent of delay in gastric emptying. AIMS:Characterize gastroparesis patients based on the degree of delay in gastric emptying, and assess the relationship of patient demographics, symptom...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-020-06258-7
更新日期:2020-04-18 00:00:00
abstract:BACKGROUND:Although direct percutaneous endoscopic jejunal feeding tube placement is an increasingly accepted method of providing small-bowel access for long-term enteral nutrition, it is reliant on push enteroscopy and remains a technically challenging procedure with significant failure rates. Double-balloon enterosco...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-010-1306-2
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:COVID-19 has caused a backlog of endoscopic procedures; colonoscopy must now be prioritized to those who would benefit most. We determined the proportion of screening and surveillance colonoscopies appropriate for rescheduling to a future year through strict adoption of US Multi-Society Task Force (USMSTF) g...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-020-06539-1
更新日期:2020-08-16 00:00:00