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 between 0.5 and 5 mmol/liter, Mg is secreted. Diffuse sm Mg flux is 3.5 times higher than the diffusive component of ms Mg transport. This prevalence of diffusive sm Mg flux over that from mucosa to serosa, which may be explained by an "anomalous solvent drag effect," is responsible for the Mg secretion observed. Mg 5 mmol/liter decreases ms Ca flux and abolishes Ca absorption. The voltage clamp experiments reveal that Mg has no effect on the cellular transport but only decreases diffusive ms Ca flux. 1 alpha,25-dihydroxyvitamin D3 has only a small effect on cellular Mg transport but remarkably stimulates ms Ca flux and increases Ca absorption by about 85%. Dexamethasone increases ms Mg flux but decreases ms Ca transport and hereby abolished Mg secretion or Ca absorption. In conclusion, Mg is secreted across the short-circuited duodenum whereas Ca is absorbed. There is evidence that both earth alkalines are transported by distinct cellular mechanisms. The data also demonstrate that diffusive movement across the paracellular pathway plays an important role on net Mg transport.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Karbach U,Schmitt A,Saner FHdoi
10.1007/BF01296406subject
Has Abstractpub_date
1991-11-01 00:00:00pages
1611-8issue
11eissn
0163-2116issn
1573-2568journal_volume
36pub_type
杂志文章abstract：BACKGROUND:Small bowel mass lesions (SBML) are a relatively common cause of obscure gastrointestinal bleeding (OGIB). Their detection has been limited by the inability to endoscopically examine the entire small intestine. This has changed with the introduction of capsule endoscopy (CE) and double balloon enteroscopy (D...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,多中心研究
doi：10.1007/s10620-007-0110-0
更新日期：2008-08-01 00:00:00
abstract：INTRODUCTION:Voluntary muscle activity, including swallowing, decreases during the night. The association between nocturnal awakenings and swallowing activity is under-researched with limited information on the frequency of swallows during awake and asleep periods. AIM:The aim of this study was to assess nocturnal swa...
journal_title：Digestive diseases and sciences
pub_type： 临床试验,杂志文章
doi：10.1007/s10620-012-2474-z
更新日期：2013-04-01 00:00:00
abstract：:Food allergy, a commonly increasing problem worldwide, defined as an adverse immune response to food. A variety of immune-related effector cells such as mast cells, eosinophils, neutrophils, and T cells are involved in food-related allergic responses categorized as IgE mediated, non-IgE mediated, and mixed (IgE and no...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,评审
doi：10.1007/s10620-017-4817-2
更新日期：2017-12-01 00:00:00
abstract：:We measured the effects of cimetidine on antibiotic concentrations in the luminal portion of gastric mucosa. Guinea pigs were premedicated with cimetidine 4 mg/kg intramuscularly. Clindamycin, an antibiotic previously characterized under physiologic pH conditions, was administered intramuscularly and levels measured i...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01300082
更新日期：1991-01-01 00:00:00
abstract：BACKGROUND:The receptor for formylated peptides, formyl peptide receptor 1 (FPR1), potently activates and serves as a chemoattractant receptor for neutrophils. AIM:Given the abundance of neutrophils in the inflamed colon, our aim was to determine if the FPR1 mediates colonic neutrophil migration, using the dextran sod...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-012-2082-y
更新日期：2012-07-01 00:00:00
abstract：:Response to interferon (IFN) therapy for chronic hepatitis C has been determined by the alteration of serum alanine aminotransferase (ALT) values. However, eradication of hepatitis C virus (HCV) could be another aim of the therapy. Thus, we serially measured serum HCV RNA levels during therapy and for at least 12 mont...
journal_title：Digestive diseases and sciences
pub_type： 临床试验,杂志文章
doi：10.1007/BF02090379
更新日期：1994-10-01 00:00:00
abstract：:Somatostatin analog SMS 201-995 causes a dose-related suppression of the release and/or action of several gastrointestinal hormones and impairs several anterior pituitary functions. Some patients with illness involving abnormal hormonal activity have responded to treatment with SMS 201-995, including resolution of sev...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01296623
更新日期：1991-12-01 00:00:00
abstract：BACKGROUND:Eradication therapies for Helicobacter pylori infection are advancing as new acid inhibitory reagents approved. The aim of this study was to assess the efficacy and safety of vonoprazan-based triple treatment. MATERIALS AND METHODS:Triple therapy with vonoprazan and two antibiotics (amoxicillin and clarithr...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章,多中心研究,评审
doi：10.1007/s10620-017-4664-1
更新日期：2017-11-01 00:00:00
abstract：:The pathophysiology of constipation after rectopexy remains unclear: acquired anorectal dysfunction or preoperative colonic state are, by turns, the supposed culprit. The aim of this prospective study was to characterize the colorectal motility abnormalities encountered after such a surgical procedure. Twelve patients...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01296102
更新日期：1993-10-01 00:00:00
abstract：BACKGROUND AND AIMS:Sorafenib is a proven first-line treatment recommended for hepatocellular carcinoma (HCC) patients with portal vein invasion (PVI). However, multiple treatment modalities are used in clinical practice as a first-line option. This study is a prospective, observational, multicenter, cohort study evalu...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-020-06134-4
更新日期：2021-01-01 00:00:00
abstract：BACKGROUND:Accumulating evidence suggests that Foxp3+ regulatory T (Treg) cells act as inhibitory mediators of inflammation; however, the in vivo mechanism underlying this protection remains elusive in liver diseases. AIMS:To clarify the in vivo role of Foxp3+ Treg cells in liver fibrosis, we used the DEREG mouse, whi...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-014-3438-2
更新日期：2015-07-01 00:00:00
abstract：BACKGROUND:Mast cells (MCs), PAR2 and TRPV1, play a key role in the regulation of visceral pain. Several studies have found that probiotics regulate visceral sensitivity. AIMS:The purpose of the current study was to explore the role of MC-PAR2-TRPV1 in VH and the mechanism of VSL#3 in a rat model of VH. METHODS:A tot...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-018-5416-6
更新日期：2019-05-01 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：BACKGROUND AND AIMS:Minimal hepatic encephalopathy is the mildest form of the spectrum of hepatic encephalopathy (HE) that impairs health-related quality of life. We assessed (1) the usefulness of psychometric hepatic encephalopathy score and critical flicker frequency for the diagnosis of minimal hepatic encephalopath...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-010-1249-7
更新日期：2010-08-01 00:00:00
abstract：:Although the pathogenic mechanisms of inflammatory bowel diseases are not fully understood, colonic microbiota may affect the induction of colonic inflammation, and some probiotics and prebiotics have been reported to suppress colitis. The inhibitory effects of brown rice fermented by Aspergillus oryzae (FBRA), a fibe...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-007-0063-3
更新日期：2008-06-01 00:00:00
abstract：:Fibronectin (FN) is important for wound healing via cell proliferation, adhesion, differentiation, and matrix formation. Fetal types of FN mRNA, which include the region of EIIIA or EIIIB, are well expressed during embryonic development and wound healing. This study was done to investigate the mRNA expression of full-...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1005541305255
更新日期：2001-02-01 00:00:00
abstract：:The objective of this study was to determine if HCV can be transmitted from patient to patient in psychiatric institutions and to determine possible routes of infection. We did a cross-sectional survey of 196 Japanese psychiatric patients tested for HCV and HBV markers and 400 age- and sex-matched controls. Anti-HCV w...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1005472812403
更新日期：2000-02-01 00:00:00
abstract：BACKGROUND:Lymphocytic esophagitis is a rare esophageal condition. Our knowledge of potential risk factors and treatment outcomes of lymphocytic esophagitis is limited. AIM:To investigate potential risk factors associated with the development of lymphocytic esophagitis and compare clinical characteristics and treatmen...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-020-06706-4
更新日期：2020-11-20 00:00:00
abstract：BACKGROUND:Patients with inflammatory bowel disease (IBD) are often immunosuppressed, and those patients receiving anti-tumor necrosis factor α (TNF) therapy can have lower antibody responses to vaccines. Pertussis cases are at their highest levels in the post-vaccine era. There is little data regarding responses to th...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-018-5043-2
更新日期：2018-06-01 00:00:00
abstract：BACKGROUND:The chemokine SDF-1 and its receptor CXCR4 are essential for the proper functioning of multiple organs. In the liver, cholangiocytes and hepatic progenitor cells (HPCs) are the main cells that produce SDF-1, and SDF-1 is thought to be essential for HPC-stimulated liver regeneration. AIMS:In this study, CXCR...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-012-2239-8
更新日期：2012-11-01 00:00:00
abstract：BACKGROUND/AIMS:Studies have shown that celiac disease can affect individuals in all age groups. However, few studies have described the disease in the elderly. The goal of this study is to characterize celiac disease in the elderly by comparing to a population of young adults with celiac disease. METHODS:Review of a ...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-010-1142-4
更新日期：2010-11-01 00:00:00
abstract：:Dysmotility and delayed emptying of the stomach have been reported in patients with chronic renal failure (CRF). The aim of this study was to investigate whether gastric myoelectrical activity was impaired in patients with CRF using electrogastrography. The electrogastrogram (EGG) was recorded in 24 symptomatic patien...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1018856112765
更新日期：1997-05-01 00:00:00
abstract：BACKGROUND AND AIM:The purpose of this study was to examine the association between celiac disease (CD) and prior respiratory syncytial virus (RSV) infection or any viral bronchiolitis. METHODS:This was a retrospective case-control study. During 2006-2008 small intestinal biopsy data were collected from Sweden's 28 pa...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-014-3046-1
更新日期：2014-07-01 00:00:00
abstract：:We obtained follow-up information on 13 patients who underwent subtotal colectomy for severe idiopathic constipation 19-45 months previously. Stool frequency increased from one bowel movement per 11.5 days before colectomy to 5.3 bowel movements per day after colectomy. Nine patients have required readmissions for abd...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01296374
更新日期：1987-11-01 00:00:00
abstract：BACKGROUND AND AIM:Although the serum sodium level has been reported to be a prognostic and predictive marker for the therapeutic effects of lung cancer and renal cell carcinoma treated with molecular targeted therapy, the serum sodium level has not been investigated in hepatocellular carcinoma (HCC) patients treated w...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-020-06380-6
更新日期：2020-06-17 00:00:00
abstract：:To ascertain how elevation of the head of the bed, bethanechol, and antacid foam tablets affect gastroesophageal reflux, we used prolonged intraesophageal pH monitoring in 55 symptomatic patients. Acid exposure was separated into reflux frequency and esophageal acid clearance time and recorded during the day in the up...
journal_title：Digestive diseases and sciences
pub_type： 临床试验,杂志文章
doi：10.1007/BF01316854
更新日期：1981-08-01 00:00:00
abstract：BACKGROUND:Neuromediators produced by enteric nervous system regulate inflammatory processes via interacting with enteric immune system. Role of γ-aminobutyric acid (GABA), which is also a neuromediator, has been implicated in autoimmune diseases like multiple sclerosis, type 1 diabetes, and rheumatoid arthritis, where...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/s10620-017-4662-3
更新日期：2017-10-01 00:00:00
abstract：:Sodium butyrate is a well-recognized differentiating agent inducing alkaline phosphatase activity, one of the epithelial differentiation markers. When IEC6 cells, a nontransformed, small intestinal epithelial cell line, were cultured with butyrate, this substrate induced alkaline phosphate activity in a time- and dose...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1023/a:1018807524075
更新日期：1998-05-01 00:00:00
abstract：:We have used double-contrast radiographic techniques to clarify what changes in the configuration and movements of the gastroduodenal junction result when peptic lesions involve the distal gastric segment between the proximal (PPL) and the distal pyloric muscle loop (DPL). Among 50 cases of pyloric ulceration diagnose...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01540562
更新日期：1990-12-01 00:00:00
abstract：:The diagnostic accuracy of two different methods of sectioning rectal biopsies was evaluated prospectively. The frequency of focal and diffuse findings in more than 80 serial sections from a limited portion of the well-oriented areas of 74 biopsies was compared with that found in three or more step sections distribute...
journal_title：Digestive diseases and sciences
pub_type： 杂志文章
doi：10.1007/BF01295652
更新日期：1982-05-01 00:00:00
