Abstract:
:Investigations were carried out to analyse the interactions of alpha 2-antagonists (yohimbine, idazoxan, SK & F-86,466) with human fat cell alpha 2-adrenoceptors. All the alpha 2-antagonists enhanced the lipolytic potencies of epinephrine with an order of potency: yohimbine greater than idazoxan greater than SK & F-86,466; the same order was also found in 3H-yohimbine competition studies on human fat cell membranes. The most potent agent, yohimbine, was administered orally in humans to define the conditions of appearance and the time-course of a putative lipid-mobilizing action. Oral yohimbine administration (0.2 mg kg-1) elevated plasma glycerol and non-esterified fatty acids in fasting healthy subjects without significant action on heart rate or blood pressure during the time-course of the experiment. The lipid-mobilizing action of yohimbine was reinforced during physical exercise, completely suppressed after a meal and partially blocked by administration of propranolol (0.5 mg kg-1; 60 min before yohimbine). Plasma norepinephrine concentrations were increased (40-50%) after oral yohimbine administration. The rise in plasma catecholamine concentration elicited by yohimbine was not modified by propranolol treatment. The lipid-mobilizing effect of yohimbine could be attributable to: (i) the increase in synaptic norepinephrine with a resultant increment in lipolysis by beta-adrenergic agonism; (ii) a decrease in alpha 2-adrenoceptor stimulation of human fat cell alpha 2-adrenoceptors; (iii) a blockade of presynaptic alpha 2-adrenoceptors. The use of highly selective alpha 2-antagonists will allow investigations into alpha 2-adrenoceptors, which may represent a novel locus for pharmacological intervention in lipid-mobilization strategies.(ABSTRACT TRUNCATED AT 250 WORDS)
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Galitzky J,Taouis M,Berlan M,Rivière D,Garrigues M,Lafontan Mdoi
10.1111/j.1365-2362.1988.tb01272.xsubject
Has Abstractpub_date
1988-12-01 00:00:00pages
587-94issue
6eissn
0014-2972issn
1365-2362journal_volume
18pub_type
临床试验,杂志文章,随机对照试验abstract:BACKGROUND:Many haemodialysis patients treated with recombinant human erythropoietin (r-HuEPO) receive intravenous iron supplementation on a regular basis. It has been shown previously that this may result in a transient "oversaturation" of transferrin. METHODS:Ten stable haemodialysis patients on r-HuEPO treatment re...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2362.2002.0320s1036.x
更新日期:2002-03-01 00:00:00
abstract::Acute renal failure is a grave complication of systemic gram-negative sepsis. The pathophysiological mechanisms of sepsis leading to kidney injury result in part from systemic inflammatory and haemodynamic alterations. These are triggered by the interaction of endotoxin with Toll-like receptor 4 (TLR4) on cells of the...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2362.2008.02007.x
更新日期:2008-10-01 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::With advancing age both sexes have an increased incidence of osteoporotic fractures, although fractures are more common in women than in men. Whereas in women several potential risk factors have been identified, less is known about osteoporosis in men. A total of 27 Austrian men (mean age: 65 +/- 2 years) with atrauma...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1992.tb01503.x
更新日期:1992-08-01 00:00:00
abstract:BACKGROUND:Several studies have suggested that chronic obstructive pulmonary disease (COPD) could be predictive of the prognosis in patients with heart failure (HF), but yield conflicting findings. Therefore, we conducted a meta-analysis to examine the impact of COPD on adverse outcomes in patients with HF. METHODS:We...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/eci.13402
更新日期:2021-01-01 00:00:00
abstract:INTRODUCTION:Smoking is associated with dyslipidaemia, particularly raised plasma triglycerides and reduced high-density lipoprotein (HDL)-cholesterol and a delayed clearance of triglyceride in fat tolerance tests. The aim of this study was to investigate whether these phenomena could be explained by a reduced lipoprot...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.1998.00328.x
更新日期:1998-07-01 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:BACKGROUND:Graves' disease (GD) is an autoimmune disorder characterized by hyperthyroidism, which can relapse in many patients after antithyroid drug treatment withdrawal. Several studies have been performed to predict the clinical course of GD in patients treated with antithyroid drugs, without conclusive results. The...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2004.01318.x
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:In obese subjects, chronic low-grade inflammation contributes to an increased risk of metabolic abnormalities, which are reversed by weight loss. Sustained weight loss, however, is difficult to achieve and more insight into dietary approaches on anti-inflammatory responses in obese subjects is needed. In thi...
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.1365-2362.2004.01414.x
更新日期:2004-11-01 00:00:00
abstract::Type III hyperlipoproteinaemia (HLP) is usually associated with homozygosity for apolipoprotein (apo) E2 (arg-158-->Cys). We identified a 46-year-old white female with severe hyperlipidaemia and the heterozygous apo E3/2* phenotype. Typical clinical characteristics of type III HLP, i.e. palmar xanthomas (orange-yellow...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.1996.83232.x
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:It is well known that space travel cause post-flight orthostatic hypotension and it was assumed that autonomic cardiovascular control deteriorates in space. Lower body negative pressure (LBNP) was used to assess autonomic function of the cardiovascular system. METHODS:LBNP tests were performed on six crew-m...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2000.00750.x
更新日期:2000-12-01 00:00:00
abstract:BACKGROUND:Diets and Omega-3 polyunsaturated fatty acids have been considered as important factors to reduce the risk of cardiovascular and inflammatory diseases, but there are few details on the effects on healthy subjects. The aim of the present study was to examine the variation of several physiological parameters 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.1365-2362.2005.01540.x
更新日期:2005-08-01 00:00:00
abstract:BACKGROUND:Fungal infections are still a relevant challenge for clinicians involved in the cure of patients with cancer. We retrospectively reviewed charts of hospitalized patients with haematological malignancies (HMs), in which a documented fungaemia was diagnosed between January 2011 and December 2015 at 28 adult an...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,多中心研究
doi:10.1111/eci.13083
更新日期:2019-05-01 00:00:00
abstract::Taurodeoxycholic acid increases the incidence of aspirin induced gastric bleeding in rats and in vitro is well bound by Aludrox (aluminium hydroxide) and poorly bound by Maalox (aluminium hydroxide and magnesium hydroxide). We studied the relevance of this binding, as demonstrated in vitro, by observing the effect of ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1980.tb02080.x
更新日期:1980-12-01 00:00:00
abstract:BACKGROUND:SOX6 has been recently proposed as a pleiotropic gene for obesity and osteoporosis. The aim of this study was to investigate whether the rs7117858 genetic variant in SOX6 was associated with bone mass assessed by quantitative ultrasound (QUS) and obesity-related measures in a population of young adults. MET...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.13011
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVE:N(ε)-(carboxymethyl)lysine (CML) is one of the major advanced glycation end products in both diabetics and nondiabetics. CML depositions in the microvasculature have recently been linked to the aetiology of acute myocardial infarction and cognitive impairment in Alzheimer's disease, possibly related to local ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.12599
更新日期:2016-04-01 00:00:00
abstract:BACKGROUND:Elevated pregnancy-associated plasma protein A (PAPP-A) levels are associated with increased risk of death in ischaemic heart disease as well as in haemodialysis patients. Previous research indicates that the prognostic value of PAPP-A may be stronger in patients with concomitant diabetes mellitus or signs o...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,多中心研究
doi:10.1111/eci.12959
更新日期:2018-08-01 00:00:00
abstract:BACKGROUND:RNA interference (RNAi) has become the method of choice for researchers wishing to target specific genes for silencing and has provided immense potential as therapeutic tools. This narrative review article aimed to understand potential benefits and limitations of RNAi technique for clinical application and i...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2362.2010.02400.x
更新日期:2011-02-01 00:00:00
abstract::Thirty-one patients with IgG antibodies to cardiolipin (ACLA) were studied to determine their in vivo formation of the platelet aggregating and vasoconstricting substance thromboxane A2 (TxA2) and the platelet inhibiting and vasodilating substance prostacyclin (PGI2). This was done by measurements in urine of their en...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1990.tb01908.x
更新日期:1990-12-01 00:00:00
abstract::In the present study, the hypothesis that the affinity of LDL to arterial proteoglycans might discriminate myocardial infarction patients from controls were tested. The patients were 52 men who had sustained a myocardial infarction at an age of 50 years or less and the controls, selected from a random population sampl...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1989.tb00193.x
更新日期:1989-02-01 00:00:00
abstract::Serum prolactin levels were measured by radioimmunoassay in eighty patients (thirty-four males, forty-six females) with sarcoidosis before treatment. In twelve patients (15%) serum prolactin levels were more than two standard deviations above the mean of normal subjects. Hyperprolactinaemia was found most frequently (...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1978.tb00806.x
更新日期:1978-02-01 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::Factors affecting erythrocyte K+ content and plasma electrolytes during light exercise were examined in 8 normal subjects and 27 patients with chronic obstructive lung disease. The patients were classified into bronchitis, emphysema and intermediate groups. Arterial blood was obtained during rest, after 2, 5, and 7 mi...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1975.tb00469.x
更新日期:1975-09-12 00:00:00
abstract::1. The oral absorption of magnesium, its myocardial uptake and exchangeable magnesium have been studied in patients with coronary heart disease and controls using the radioactive isotope magnesium-28. 2. No significant difference in oral absorption or myocardial uptake was found between patients and controls. 3. The e...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1978.tb00817.x
更新日期:1978-04-01 00:00:00
abstract:BACKGROUND:Phospholipid transfer protein (PLTP) and cholesteryl ester transfer protein (CETP) remodel circulating lipoproteins and play a role in the antiatherogenic reverse cholesterol transport pathway. The present study determined whether abnormalities in the LDL subfraction pattern in type 2 diabetic patients were ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2003.01132.x
更新日期:2003-04-01 00:00:00
abstract::Anaemia is a common condition among pre-end-stage renal disease (pre-ESRD) patients with chronic kidney disease (CKD). Indeed, data from clinical studies indicate that anaemia may be present in as many as two-thirds of such patients. Use of recombinant human erythropoietin (EPO) provides an effective means of correcti...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2362.2005.01532.x
更新日期:2005-12-01 00:00:00
abstract:INTRODUCTION:Complement-mediated tubular injury may play an important role in the progression of renal diseases. C3d is a presumed marker of complement activation. Its precursor C3dg has been detected in the urine of patients with membranous nephropathy. However, little is known of the renal handling of C3d or its excr...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2003.01153.x
更新日期:2003-06-01 00:00:00
abstract::The effect of infusions of recombinant insulin-like growth factor-I (IGF-I) (34, 103 or 688 pmol min-1 kg-1), insulin (3.4, 10.3 or 68.8 pmol min-1 kg-1) or combined infusions (34 pmol IGF-I + 3.4 pmol min-1 kg-1 insulin or 103 pmol IGF-I + 3.4 pmol min-1 kg-1 insulin) on protein metabolism, using an infusion of [1-14...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1994.tb01094.x
更新日期:1994-05-01 00:00:00
abstract::The urinary excretion of free light immunoglobulin chains IgG, IgA, and Fcγ fragment material has been estimated in 12 healthy individuals and 7 subjects with tubular or glomerular proteinuria. Measurements were carried out by immunochemical methods after separation of concentrated urinary immunoglobulin components by...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.1971.1.4.255
更新日期:1971-08-01 00:00:00
abstract::The degradation of vasoactive intestinal peptide (VIP) was studied using an isolated perfused rat lung model. 125iodine labelled VIP (125I-VIP) was used as a tracer. VIP was cleared from the perfusate by a single lung passage up to concentrations of 1 nmol l-1. The clearance rate was decreased at higher concentrations...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1989.tb00267.x
更新日期:1989-12-01 00:00:00