Abstract:
:The existence of transporters for bile acids (BA) in liver and intestine has been well documented, but information is still needed as to their respective transport capacity. In the present investigation, we compared the hepatic and intestinal transport rates for BA, using perfused livers and intestines. The livers and intestines were separately perfused and dose-response curves (0.25-10 mM) for tauroursodeoxycholate, taurocholate and taurodeoxycholate were obtained. The intestinal and mesenteric concentration and bile acid pattern were also evaluated in six non-fasting rabbits. Taurocholic, tauroursodeoxycholic and taurodeoxycholic acid ileal absorption showed saturation kinetics in the intestine as in the liver; the maximal uptake velocity for each bile acid in the liver was tenfold higher than the respective maximal transport velocity in the intestine; the Km values obtained in the liver were of the same order of magnitude, i.e. in the millimolar range. Taurocholic, tauroursodeoxycholic and taurodeoxycholic acid transport differences in the liver paralleled those in the intestine. Although the intestine was not homogeneously filled, the bile acid concentration in the ileal content fell into the range of the Km for the three studied bile acids, while the portal blood total bile acid concentration was inferior to the observed Kms of liver uptake. Therefore, both the hepatic and intestinal systems do not operate at their maximal transport rates at the prevailing concentrations in portal blood and luminal content, and the hepatic transport occurs at its highest efficiency (below the Km values) in physiological conditions.
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Aldini R,Roda A,Montagnani M,Polimeni C,Lenzi PL,Cerre C,Galletti G,Roda Edoi
10.1111/j.1365-2362.1994.tb01062.xsubject
Has Abstractpub_date
1994-10-01 00:00:00pages
691-7issue
10eissn
0014-2972issn
1365-2362journal_volume
24pub_type
杂志文章abstract:BACKGROUND:This study was conducted to determine the effects of fish oil administration on gene expression related to insulin, lipid and inflammation in women with polycystic ovary syndrome (PCOS). MATERIALS AND METHODS:This randomized, double-blind, placebo-controlled trial was conducted among 40 subjects with PCOS, ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,随机对照试验
doi:10.1111/eci.12893
更新日期:2018-03-01 00:00:00
abstract::The aim of this research was to study exogenous prostacyclin effect on urinary kallikrein excretion (UKK) in man, to define whether prostacyclin-induced renin release and/or endogenously released cyclooxygenase products were responsible for prostacyclin-induced enhancement of UKK, to determine furosemide effect on UKK...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1986.tb01334.x
更新日期:1986-06-01 00:00:00
abstract:BACKGROUND:The pathogenesis of tumour formation in the anterior pituitary including adrenocorticotropic hormone (ACTH)-secreting tumours has been intensively studied, but the causative mechanisms involved in pituitary cell transformation and tumourigenesis remain unclear. MATERIALS AND METHODS:We searched PubMed on an...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2362.2011.02621.x
更新日期:2012-06-01 00:00:00
abstract:BACKGROUND:Experimental and clinical studies have suggested that inhibitors of the renin angiotensin system (RAS) might be useful to slow the progression of valvular calcification in patients with aortic stenosis (AS). OBJECTIVES:The aim of this study was to evaluate the relationships between the weight and tissue rem...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2011.02522.x
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:To compare the administration of furosemide with placebo on the subjective perception of dyspnoea in patients with acute pulmonary oedema because of hypertensive crisis. Design Randomized, controlled and double-blinded clinical trial. SETTING:Municipal emergency medical service system and university-based ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1365-2362.2010.02450.x
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:EPB4.1 has been previously mapped to human chromosome 1p33-p34.2. In contradiction to this chromosomal location, we have mapped EPB4.1-1p36 by using fluorescence in situ hybridization and radiation hybrid mapping. In neuroblastomas, deletions of the telomeric end of chromosome 1 (1p36) are the most common ge...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2001.00892.x
更新日期:2001-10-01 00:00:00
abstract:BACKGROUND:The aim was to examine whether the inhibition of selective cyclooxygenase (COX) 2 activation could suppress the development of inflammatory reaction in visceral and subcutaneous abdominal fats of high-fat-induced obese rats. MATERIALS AND METHODS:The rats were fed separately regular diet (CONT), high-fat di...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2009.02239.x
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:Inflammation is an established contributor in atherosclerosis and several other common diseases including diabetes. Therefore the study was to investigate how inflammatory factors affect lipid metabolism during recovery from hyperinsulinaemia in healthy individuals. MATERIALS AND METHODS:A total of 22 healt...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2006.01730.x
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:Passive smoking is a well-known risk factor for both recurrent respiratory infections and disturbed lipid profile. Whether passive smoking problems are related to altered lymphocyte survival and its relation to altered lipid profile are the points of concern in this work. MATERIALS AND METHODS:Urinary cotin...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02420.x
更新日期:2011-04-01 00:00:00
abstract::The effects of treating the anaemia of end-stage renal failure with erythropoietin were studied in nine dialysis patients. The increase in haemoglobin concentration (by 59% from 7.0 +/- 1.2 to 11.1 +/- 1.1 g dl-1) was associated with increases in exercise duration (by 41%) and maximum oxygen consumption (by 34%). Trea...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1993.tb00785.x
更新日期:1993-07-01 00:00:00
abstract::The relationship between changes in ketone concentrations and leucine metabolism (seven obese subjects), glucose and alanine metabolism (seven obese subjects) was investigated using radioisotopic techniques after 12 h, 60 h and 2 weeks starvation. Leucine metabolism was also measured in five lean subjects after 12 h a...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1995.tb01755.x
更新日期:1995-08-01 00:00:00
abstract::The mucosal incorporation and clearance of a DNA precursor was examined in the rat stomach and intestine following oral treatment with natural prostaglandin E2 (PGE2) or 15(R) 15 methyl prostaglandin E2 (Me PGE2). Control groups received vehicle or pentagastrin. After five days of treatment animals were labelled with ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1986.tb02169.x
更新日期:1986-12-01 00:00:00
abstract::Most physicians and other healthcare professionals are unaware of the pervasiveness of poor quality clinical evidence that contributes considerably to overuse, underuse, avoidable adverse events, missed opportunities for right care and wasted healthcare resources. The Medical Misinformation Mess comprises four key pro...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/eci.12834
更新日期:2017-11-01 00:00:00
abstract::The most well characterized function of pulmonary surfactant is its ability to reduce surface tension at the alveolar air-liquid interface, thereby preventing lung collapse. However, several lines of evidence suggest that surfactant may also have 'non-surfactant' functions: specific components of surfactant (proteins ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2362.1994.tb01110.x
更新日期:1994-09-01 00:00:00
abstract::In twenty-five outpatients with essential hypertension, the relevance of renal kallikrein excretion for inter-individual differences in the blood pressure response to changes in dietary sodium intake was investigated. The patients were studied during 2 weeks of high (300 mmol) and 2 weeks of low (50-100 mmol) sodium i...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2362.1985.tb00160.x
更新日期:1985-06-01 00:00:00
abstract::We recently reported that chloride-depletion metabolic alkalosis (CDMA) results in renal losses of Na, K, and water. In these studies we investigated whether CDMA (induced using a new model that avoids external changes in Na and water balance) was also associated with internal Na and water shifts out of the ECF. CDMA ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1991.tb01370.x
更新日期:1991-06-01 00:00:00
abstract:BACKGROUND:A high pulse pressure (PP) is associated with adverse cardiovascular (CV) outcomes; however, this relationship may be reversed in patients with heart failure with reduced ejection fraction (HFREF). METHODS:Patients from the WARCEF trial with left ventricular ejection fraction ≤35% were included. PP was divi...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.13092
更新日期:2019-02-23 00:00:00
abstract:BACKGROUND:Patients with chronic kidney disease (CKD) need regular monitoring, usually by blood urea and creatinine measurements, needing venepuncture, frequent attendances and a healthcare professional, with significant inconvenience. Noninvasive monitoring will potentially simplify and improve monitoring. We tested t...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2012.02657.x
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:The importance of ascorbate on the production of extracellular matrix proteins (as elastin and collagens) is now well documented, but no studies have been published concerning its effects on fibronectin biosynthesis. Fibronectin is important for cell attachment and for proliferation. MATERIALS AND METHODS:T...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2002.00992.x
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND/AIMS:Conflicting observations exist concerning the role of nuclear factor kappa B (NFjB) in alcoholic liver disease (ALD) in animal models. To date no studies have examined this aspect in human liver tissue. We here assessed cytokines and toll-like receptors (TLRs) expressions in conjunction with NFkappaB ac...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02295.x
更新日期:2010-07-01 00:00:00
abstract::Prostacyclin, an unstable metabolite of arachidonic acid metabolism, has been shown to have potent platelet antiaggregatory and vasodilator activity. Available evidence suggests that arterial prostacyclin production is diminished in the diabetic state. In this study we have examined the sensitivity of platelets from d...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1982.tb00686.x
更新日期:1982-10-01 00:00:00
abstract:BACKGROUND:Thiopurines (TP) are widely used in the management of inflammatory bowel diseases. Side effects and inefficacy are a major concern as they lead to withdrawal of the drug. MATERIALS AND METHODS:Tools investigating TP metabolism are useful to avoid inadequate cessation of TP therapy. RESULTS:TP metabolism is...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2362.2010.02346.x
更新日期:2010-11-01 00:00:00
abstract::Fibronectin is a glycoprotein found in body fluids, loose connective tissue matrix and in basement membranes. Fibronectin in rheumatoid arthritis synovial fluid was immunologically indistinguishable from the plasma form, as shown by double-diffusion analysis. Fibronectin isolated from rheumatoid synovial fluid by affi...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1981.tb01842.x
更新日期:1981-06-01 00:00:00
abstract::The purpose of this work was to examine in an open, randomized parallel-group study whether an intervention programme directed towards hypercholesterolaemia, smoking and diabetes mellitus in treated hypertensive men was associated with less complex formation between low-density lipoprotein (LDL) and human arterial pro...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2362.1996.2030543.x
更新日期:1996-11-01 00:00:00
abstract:BACKGROUND:The pathogenesis of atherosclerosis and acute coronary syndromes involves inflammation and immunological mechanisms. We hypothesized that patients with unstable angina may have an imbalance between inflammatory and anti-inflammatory cytokines. DESIGN:Plasma levels of tumour necrosis factor (TNF)alpha and in...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2002.01069.x
更新日期:2002-11-01 00:00:00
abstract:INTRODUCTION:Diabetes mellitus is a progressive disease with cardiovascular complications. This study evaluated the effects of liraglutide, a glucagon-like peptide-1 analogue and the dipeptidyl peptidase 4 inhibitors sitagliptin and linagliptin on cardiac function in type 2 diabetes patients with renal impairment. MAT...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,随机对照试验
doi:10.1111/eci.13007
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND:Fat tissue is a common material for autologous transplantation in plastic and reconstructive surgery. Basic fibroblast growth factor (bFGF) ameliorates the fat graft survival. A transplantation model has shown the gene expression of matrix metalloproteinases (MMPs) to increase in adipocytes. The aim of this ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2008.02023.x
更新日期:2008-10-01 00:00:00
abstract::Thyroid hormones occasionally appear less effective when administered alone to patients with panhypopituitarism, and manifestations suggestive of hypothyroidism have been reported in patients suffering from untreated Addison's disease. In the latter condition, thyrotropin secretion is increased: this occurs already af...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1987.tb02388.x
更新日期:1987-04-01 00:00:00
abstract:BACKGROUND:Bezafibrate reportedly lowers serum lipids and plasma fibrinogen in humans and rats, but the mechanism of this process has still to be clarified. We have addressed this problem by investigating the effects of bezafibrate on fibrinogen in the human hepatoma HepG2 cell line. METHODS:In cells cultured with and...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.1998.00251.x
更新日期:1998-02-01 00:00:00
abstract::Disseminated intravascular coagulation (DIC) is a frequently occurring complication of sepsis and may contribute to multiple organ failure. More insight into the pathogenesis of this derangement of the coagulation system is necessary to develop more effective therapeutic strategies for this condition. Recently, more d...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2362.1997.570614.x
更新日期:1997-01-01 00:00:00