Abstract:
:Assuming that lithium is exclusively reabsorbed in the proximal tubules pari passu with sodium (Na), the lithium clearance (CLi) has been advanced as an index of filtrate delivery from the proximal tubules. In order to determine whether water loads in a range commonly given during clearance studies affect CLi, we studied nine normal subjects (Na intake 150 mmol day-1) on three water loads resulting in stable urine flow rates of 2.2 +/- 0.9, 6.1 +/- 0.7 and 11.7 +/- 3.0 ml min-1, respectively. We also studied the effect of acute anti-diuresis (urine flow less than 1 ml min-1) induced by d-DAVP given i.v. at the end of all studies. Water loading up to induction of maximum water diuresis did not significantly affect absolute or fractional CLi. Sodium and chloride excretion were reduced at the highest water intake level. Administration of d-DAVP caused a 50% reduction in fractional Na excretion and a small but significant rise in fractional lithium reabsorption from 75.5 +/- 3.9 to 77.5 +/- 3.6%. We conclude that CLi is hardly affected over a wide range of water intakes and urine flow rates, despite concomitant changes in Na excretion. The finding that d-DAVP, which probably enhances Na reabsorption in the thick ascending limb of Henle's loop, also enhanced lithium reabsorption, suggests that lithium may be partly reabsorbed in this nephron segment. Thus, lithium may not be the exact, quantitative marker of Na reabsorption in the proximal tubules that it is purported to be.
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Boer WH,Koomans HA,Dorhout Mees EJdoi
10.1111/j.1365-2362.1988.tb01258.xsubject
Has Abstractpub_date
1988-06-01 00:00:00pages
273-8issue
3eissn
0014-2972issn
1365-2362journal_volume
18pub_type
杂志文章abstract::The concentrations of gastrins containing the active C-terminal tetrapeptide amide (mainly gastrin-34 and gastrin-17) and the N-terminal tridecapeptide fragment of gastrin-17 were measured in antral and duodenal biopsy specimens. The antral concentration of the N-terminal gastrin fragment was much higher in patients w...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1984.tb01126.x
更新日期:1984-06-01 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:PURPOSE:The aim of this study was to investigate the clinical applicability of transthoracic ultrasound (TUS) in the diagnosis and follow-up of community acquired pneumonia (CAP). METHODS:We designed a pilot study in 15 patients and subsequently investigated 342 patients (206 men and 136 women) consecutively admitted ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02367.x
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Gastrointestinal symptoms are common on acute exposure to high-altitude (HA). Underlying mechanisms are not understood, but vascular shunting away from the gut could be responsible. Therefore, blood flow in the superior mesenteric artery (SMA) and hepatic portal vein (HPV) was examined at sea level (SL) and ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02324.x
更新日期:2010-08-01 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::Endothelin-1 is a recently described endothelium-derived vasoconstricting peptide. Plasma concentrations of immunoreactive (IR-) endothelin were investigated in six healthy young men applying a radioimmunoassay after extraction of endothelin from plasma. In venous plasma a mean concentration of 1.3 +/- 0.4 pmol l-1 wa...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1990.tb01892.x
更新日期:1990-10-01 00:00:00
abstract::Urodilatin (ANF(95-126)) is an analogue of the atrial natriuretic factor (ANF(99-126)), which has been isolated from human urine. Recently we have shown in healthy volunteers, that intravenous bolus injections of synthetic urodilatin produce more pronounced reductions of pulmonary arterial pressure than ANF(99-126). T...
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.1365-2362.1992.tb01427.x
更新日期:1992-10-01 00:00:00
abstract::An increase in plasma renin activity (PRA) following experimental coronary occlusion has previously been demonstrated in anaesthetized and conscious dogs. The purpose of the present study was to analyse the mechanism of this renin release. In two distinct models of myocardial ischaemia in anaesthetized dogs--i.e. occl...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1985.tb00288.x
更新日期:1985-12-01 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::The serum concentrations of collagen type IV,7S, collagen type IV,nc1, and aminoterminal type III procollagen peptide immunoreactive components were measured by means of specific radioimmunoassays during development of granulation tissue in rats. The results were compared with tissue deposition of basement membranes a...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1988.tb01023.x
更新日期:1988-08-01 00:00:00
abstract:BACKGROUND:The role of the pattern, quantity and site of insulin secretion in the tolerance to a glucose challenge is not fully evaluated in humans because it is difficult to obtain appropriate clinical models. DESIGN:To address this issue, we studied subjects with reduced pancreatic mass (hemipancreatectomized, HEMI)...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2362.2000.00648.x
更新日期:2000-05-01 00:00:00
abstract:BACKGROUND:Four peptide hormones of a family of six hormones, i.e. atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), C-natriuretic peptide (CNP), long acting natriuretic peptide (LANP), vessel dilator and kaliuretic peptide, significantly decrease the number of adenocarcinoma cells in culture. The pres...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2005.01501.x
更新日期:2005-06-01 00:00:00
abstract:BACKGROUND:To investigate the clinical features of thyroid cancer in aging patients and to present the results of treatment. From this we can provide bases for earlier diagnoses and better treatment of thyroid malignancies in older patients. MATERIALS AND METHODS:In this study a retrospective analysis was performed wi...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2000.00598.x
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:The mechanisms responsible for the progressive failure of hypoglycaemia counterregulation in long-standing type 1 diabetes are poorly understood. Increased brain glucose uptake during hypoglycaemia or alterations of brain energy metabolism could effect glucose sensing by the brain and thus contribute to hypo...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2006.01615.x
更新日期:2006-03-01 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:BACKGROUND:Acute hyperglycaemia is known to increase gastrointestinal (GI) sensitivity in healthy subjects and may contribute to the increased prevalence of GI symptoms in diabetes patients. The aim of this study was to evaluate the effect of acute hyperglycaemia on perception and brain responses to painful visceral an...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02335.x
更新日期:2010-10-01 00:00:00
abstract:BACKGROUND:The accuracy of estimating glomerular filtration rate from plasma creatinine (eGFR) has been questioned but it is unclear how much covert error in several reference methods that have been used has contributed to this perceived inaccuracy. The aim of the study was to evaluate eGFR in comparison with a second ...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2008.01960.x
更新日期:2008-07-01 00:00:00
abstract:BACKGROUND:Different studies, mostly cross-sectional, have found an association between low levels of thyroid hormones, even within the normal range, and a greater body mass index. The aim of this study was to determine the association between thyroid function and the risk for obesity. MATERIALS AND METHODS:In this po...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2011.02526.x
更新日期:2011-11-01 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::Moderate and progressive hypertension was produced experimentally in rats by progressive aortic constriction. The progression of the stenosis was assessed by the differences of pressure across the stenosis. Haemodynamic studies were performed 15, 30 and 60 days after the ligature was placed or after sham operation. Fi...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1984.tb01178.x
更新日期:1984-08-01 00:00:00
abstract:BACKGROUND:Acute ischaemic stroke (AIS) triggers both systemic and neurovascular inflammation, influencing poststroke recovery. In smokers with AIS, inflammation might be further upregulated, increasing ischaemia/reperfusion injury. Here, the predictive value of leucocyte and adhesion molecules levels on poststroke out...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.12795
更新日期:2017-10-01 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:Interleukin 18(IL-18) is a pro-atherosclerotic cytokine. Elevated IL-18 levels and the genetic variation of the IL-18 have been previously linked with acute coronary events and cardiovascular mortality among patients with coronary artery disease (CAD). We studied the possible association between the IL-18 ge...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2010.02356.x
更新日期:2010-11-01 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:BACKGROUND:The use of Procion orange dye (POD) is one of the most widely accepted techniques to assess sarcolemmal damage. This phenomenon has been related to functional adaptation in skeletal muscles. The POD method includes intravenous injection of this colorant in vivo, enabling its identification inside those fibre...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2002.01005.x
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:Diacylglycerols (DAGs), which are well-known components of insect lipophorins, have been recently recognized as a major glyceride of human high-density lipoprotein (HDL). Moreover, DAGs are good substrates for hepatic lipase and for the phospholipid transfer protein (PLTP). The present work was undertaken to...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.1999.00438.x
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:HFE knockout mice (C57BL/6 x 129/Ola strain) mimic the functional aberrations of human hereditary haemochromatosis (HH) in short-term experiments. The present study investigates functional and morphological long-term changes. METHODS:HFE(o/o), HFE(+/o) and HFE(+/+) mice were maintained on iron-rich and cont...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.2002.01026.x
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND:Chronic hyponatremia is common and associated with increased morbidity and mortality. However, whether treatment improves outcome in patients without significant symptoms is unclear. We here assessed the therapeutic outcome on clinical symptoms, neurocognitive and neuromuscular function in patients with chro...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.13022
更新日期:2018-11-01 00:00:00
abstract::A significant rise in serum concentrations of aluminum was demonstrated in 23 patients prophylactically treated with the antacid magaldrate, whereas no increase in serum aluminium was observed in another 26 critically ill patients, in whom the use of antacids was avoided. In parallel, urinary excretion rates of alumin...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1991.tb01365.x
更新日期:1991-02-01 00:00:00
abstract:BACKGROUND:Metastatic pheochromocytomas (PCs) and paragangliomas (PGLs) are rare neuroendocrine tumours with a strong genetic background. DESIGN:We searched the PubMed database through February 2015 to identify studies characterizing metastatic PCs/PGLs as well as currently established and evolving therapies. RESULTS...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
doi:10.1111/eci.12495
更新日期:2015-09-01 00:00:00