Abstract:
:The aim of the present study was to investigate possible relationships in piglets between myocardial energy-related metabolites and intracellular electrolytes during open-chest cardiopulmonary resuscitation (OCCPR) supplemented by the administration of alkaline buffers with varying sodium content. Our hypothesis was that an increasing myocardial intracellular sodium content would decrease the intracellular energy stores. In addition to haemodynamics, acid-base and blood gas variables were analysed, and myocardial biopsies were collected before and during OCCPR as well as after the return of spontaneous circulation. After a period of 4 min of untreated ventricular fibrillation (VF). 25 piglets were randomly allocated to one of four groups: OCCPR with normal saline (n = 5); OCCPR with sodium bicarbonate (SB) (n = 7); OCCPR with Tris buffer mixture (TBM) (n = 7); and a totally untreated control group (n = 6). The results showed that 4 min of untreated VF almost eradicated creatine phosphate (CrP) and that the ATP/ADP ratio decreased to 1.5-2.0. During OCCPR with normal saline, the myocardial content of CrP increased, whereas lactate, ATP and ADP levelled off and AMP decreased, causing an increased ATP/ADP ratio. The adenosine and inosine contents increased, whereas inosine monophosphate was unchanged at a low level, the adenosine and inosine contents being inversely correlated with the total content of adenine nucleotides. In both buffered groups, the increase in most energy-related metabolites (CrP, ATP, ADP, AMP and the ATP/ADP quotient) was less and in lactate more pronounced than in the group not being buffered, with no difference between the groups receiving SB or TBM. Although the intracellular potassium content was unaltered, the sodium, chloride and calcium concentration increased, more so in the group receiving SB. The intracellular content of sodium was correlated with that of calcium. Thus, buffering increased the myocardial AMP degradation during OCCPR by increasing the flux via the 5'-nucleotidase reaction, and SB increased the intracellular contents of sodium and calcium to a greater extent than did TBM.
journal_name
Eur J Clin Investjournal_title
European journal of clinical investigationauthors
Wiklund L,Ronquist G,Roomans GM,Rubertsson S,Waldenström Adoi
10.1046/j.1365-2362.1997.1280676.xsubject
Has Abstractpub_date
1997-05-01 00:00:00pages
417-26issue
5eissn
0014-2972issn
1365-2362journal_volume
27pub_type
杂志文章abstract:METHODS:Ten samples of decidua basalis from pre-eclamptic women and 10 from healthy primigravid women subjected to caesarean section (control tissues) were investigated immunohistochemically for changes in angiogenesis and expression of tenascin, an extracellular matrix protein thought to modulate angiogenesis. In addi...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1046/j.1365-2362.1998.00294.x
更新日期:1998-05-01 00:00:00
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 stud...
journal_title:European journal of clinical investigation
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doi:10.1111/j.1365-2362.1988.tb01258.x
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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::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
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更新日期:1990-10-01 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...
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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更新日期:1997-06-01 00:00:00
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journal_title:European journal of clinical investigation
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doi:10.1046/j.1365-2362.1997.900616.x
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journal_title:European journal of clinical investigation
pub_type: 杂志文章,评审
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更新日期:2015-01-01 00:00:00
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journal_title:European journal of clinical investigation
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doi:10.1111/j.1365-2362.1994.tb02426.x
更新日期:1994-02-01 00:00:00
abstract:BACKGROUND:The Treating to New Targets (TNT) study has recently provided evidence that reduction in LDL-C levels below 2·6 mmol L⁻¹ lowers the risk of cerebrovascular events by an additional 20% to 25%, thereby confirming the value of statin therapy in preventing transient ischaemic attacks and stroke. Despite the prot...
journal_title:European journal of clinical investigation
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Acute myocardial infarction (AMI) is followed by post AMI cardiac remodelling, often leading to congestive heart failure. Homing of c-kit+ endothelial progenitor cells (EPC) has been thought to be the optimal source for regenerating infarcted myocardium. METHODS:Immune function of viable peripheral blood mo...
journal_title:European journal of clinical investigation
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更新日期:2009-06-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/eci.12934
更新日期:2018-06-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.2005.01460.x
更新日期:2005-02-01 00:00:00
abstract::The influence of insulin on lipolysis and glucose metabolism in abdominal adipose tissue was studied in situ with the microdialysis technique during a euglycaemic insulin clamp (1 mU kg-1 min-1) in nine cirrhotic patients and 10 controls. The cirrhotic patients displayed a 50% decrease in glucose utilization rate duri...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1993.tb00739.x
更新日期:1993-12-01 00:00:00
abstract::Quinidine is known to reduce the renal clearance of digoxin, but this effect does not completely explain the influence of quinidine on the total clearance of digoxin. We therefore studied the effect of quinidine administration on biliary clearance of digoxin in five patients with atrial fibrillation. Biliary clearance...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1987.tb01246.x
更新日期:1987-06-01 00:00:00
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更新日期:2018-02-01 00:00:00
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journal_title:European journal of clinical investigation
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journal_title:European journal of clinical investigation
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更新日期:2011-02-01 00:00:00
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更新日期:2011-09-01 00:00:00
abstract:BACKGROUND:Increased production of chemokines by adipose tissue and defective adipose tissue oxygenation as a result of obesity may induce leucocyte infiltration and subsequent systemic inflammation. OBJECTIVES:1-To determine the relation between the amount of visceral and subcutaneous adipose tissue and the chemokine...
journal_title:European journal of clinical investigation
pub_type: 杂志文章
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更新日期:2013-04-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1987.tb02395.x
更新日期:1987-04-01 00:00:00
abstract:BACKGROUND:Tumour necrosis factor alpha (TNF) mRNA expression has been reported to be up-regulated in adipose tissue from several rodent models of obesity and diabetes and from obese humans. This elevated expression has been assumed to be associated with the development of insulin resistance. However, the biological si...
journal_title:European journal of clinical investigation
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doi:10.1046/j.1365-2362.1999.00520.x
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:The DALI low-density lipoprotein (LDL) apheresis system is the first whole-blood apheresis system in regular clinical use. DALI stands for direct adsorption of lipoproteins, which describes the basic principle of operation of this newly developed LDL apheresis procedure. METHODS:The selective removal of LDL...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,多中心研究
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更新日期:1998-12-01 00:00:00
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更新日期:2002-06-01 00:00:00
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journal_title:European journal of clinical investigation
pub_type: 杂志文章
doi:10.1111/j.1365-2362.1976.tb00497.x
更新日期:1976-01-30 00:00:00
abstract:BACKGROUND:Vitamin E supplementation is associated with a reduced risk of developing atherosclerotic events; probably because it inhibits low-density lipoprotein (LDL) oxidation, an initial step in atherosclerosis. Metal ion-dependent LDL oxidation is a commonly used method to estimate oxidizability of LDL, but the eff...
journal_title:European journal of clinical investigation
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1999-12-01 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...
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