6177 results
Cited 16 times since 1996 (0.5 per year)
source: EuropePMC
Magnetic resonance imaging,
Volume 14, Issue 1, 1 1 1996, Pages 21-29
Assessment of acute myocardial infarction in man with magnetic resonance imaging and the use of a new paramagnetic contrast agent gadolinium-BOPTA.
Holman ER, van Rossum AC, Doesburg T, van der Wall EE, de Roos A, Visser CA
To assess the feasibility of and characterize the new paramagnetic contrast agent gadolinium-BOPTA/dimeglumine (Gd-BOPTA) to detect acute myocardial infarctions with MR imaging, 24 patients (53.3 +/- 8.3 yr) were examined 9.3 +/- 3.6 days after a first myocardial infarction. Short-axis T1-weighted and T2-weighted MR imaging was performed at three slice levels. T1-weighted images were obtained before, immediately after, 15, 30, and 45 min after injection. Patients received either 0.05 or 0.1 mmol...
Abstract
Cited 3 times since 1996 (0.1 per year)
source: EuropePMC
European journal of applied physiology and occupational physiology,
Volume 73, Issue 1-2, 1 1 1996, Pages 113-116
Intravenous instrumentation alters the autonomic state in humans.
Bootsma M, Swenne CA, Lenders JW, Jacobs MC, Bruschke AV
Intravascular instrumentation may induce syncope or presyncope. It is not known whether asymptomatic subjects also have autonomic reactions, albeit concealed. We addressed this issue by studying 44 healthy young male subjects of various levels of fitness, ranging from inactivity to athletic [mean maximal oxygen uptake was 49.1 (SD 10.7) ml*kg(-1)*min(-1), range 28.7-71.9 ml*kg(-1)*min(-1)]. The autonomic response to venous cannulation was quantified by measuring heart rate before cannulation (HR...
Abstract
Cited 9 times since 1996 (0.3 per year)
source: EuropePMC
Clinical cardiology,
Volume 19, Issue 1, 1 1 1996, Pages 62-68
Heart rate variability during repeated incremental head-up tilt discloses time dependence of individual autonomic dynamics.
Bootsma M, Swenne CA, Bruschke AV
According to the Rosenblueth-Simeone model, the heart rate (HR) is proportional to the sympathovagal balance. The individual proportionality constant is the intrinsic HR, which can be determined only invasively. The percentage low-frequency spectral HR variability power, relative to the low- plus high-frequency spectral power (%LF) has been raised as a noninvasive alternative. We previously studied young healthy male subjects, in whom gradual autonomic changes were induced by incremental head-up...
Abstract
Cited 7 times since 1996 (0.2 per year)
source: EuropePMC
Peritoneal dialysis international : journal of the International Society for Peritoneal Dialysis,
Volume 16 Suppl 1, 1 1 1996, Pages S362-7
Impaired initial cell reaction in CAPD-related peritonitis.
Koopmans JG, Boeschoten EW, Pannekeet MM, Betjes MG, Zemel D, Kuijper EJ, Krediet RT
Our objective was to determine the incidence of peritonitis episodes with an impaired initial cell reaction (IICR:neutrophil number < 100 x 10(6)/L) over a period of ten years, and to find possible explanations for this unusual presentation of peritonitis. A retrospective review of the files of continuous ambulatory peritoneal dialysis (CAPD) patients included in the CAPD program 1984 and 1993 was done. Analysis of cytokine and prostanoid patterns during four peritonitis episodes with an IICR...
Abstract
Journal of thrombosis and thrombolysis,
Volume 3, Issue 3, 1 1 1996, Pages 215-223
Different Effects of Lipopolysaccharide on Plasminogen Activator Inhibitor-1 Production in Aortic Media in Vivo and in Culture.
van Leeuwen RT, Quax PH, Tippins JR, Antoniw JW, Andreotti F, Maseri A, Kluft C, Sperti G
Background: Lipopolysaccharide (endotoxin) has been shown to increase the expression of plasminogen activator inhibitor type-1 (PAI-1) in the vessel wall. Endotoxin is known to increase PAI-1 production in endothelial cells, but its action on smooth muscle cells (SMCs) is presently not clear. In this study we determined the effect of endotoxin on PAI-1 and tissue plasminogen activator (t-PA) production by aortic SMCs in vivo in two animal species, and in culture. Methods: The aortas of Sprague D...
Abstract
Cited 11 times since 1996 (0.4 per year)
source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery,
Volume 10, Issue 5, 1 1 1996, Pages 299-304
Upper and lower extremity somatosensory evoked potential recording during surgery for aneurysms of the descending thoracic aorta.
Shahin GM, Hamerlijnck RP, Schepens MA, Ter Beek HT, Vermeulen FE, Boezeman EH
Since tibial nerve somatosensory evoked potentials (SEPs) recording is influenced by hemodynamic changes and anesthetics, alterations cannot always be attributed to spinal cord ischemia, so causing false positive results. Additional recording of median nerve SEPs facilitates interpretation. From January 1988 to July 1993, 60 consecutive patients (44 men, 16 women, mean age 66 years, ranging from 26 to 83 years) underwent surgery for an aneurysm of the descending thoracic aorta using a non-hepari...
Abstract
Cited 3 times since 1996 (0.1 per year)
source: EuropePMC
Journal of cardiovascular pharmacology,
Volume 28 Suppl 1, 1 1 1996, Pages S37-44
Magnetic resonance techniques for assessment of myocardial viability.
van der Wall EE, Vliegen HW, de Roos A, Bruschke AV
In general, the following three standards for myocardial viability can be used: (a) preserved coronary flow (adequate perfusion); (b) preserved wall motion (systolic wall thickening); and (c) preserved metabolism (metabolic integrity). The current magnetic resonance (MR) techniques provide a great potential to measure all three standards of viability. Adequate perfusion can be assessed by spin-echo MR imaging and/or ultrafast MR imaging, systolic wall thickening by cine MR imaging, and the prese...
Abstract
Clinical science (London, England : 1979),
Volume 91 Suppl, 1 1 1996, Pages 113-115
Heart rate variability, baroreflex sensitivity, and cardiac vagal tone.
Swenne CA, Bootsma M, Hyndman BW, Voogd J, Bruschke AV
Abstract
Cited 6 times since 1995 (0.2 per year)
source: EuropePMC
European heart journal,
Volume 16, Issue 12, 1 1 1995, Pages 1860-1871
Comparison between regional myocardial perfusion reserve and coronary flow reserve in the canine heart.
Geldof MJ, Schalij MJ, Manger Cats V, van der Zwet PM, Steendijk P, van der Velde ET, Nagtegaal EM, Reiber JH, Bruschke AV
Diameter stenosis and flow reserve are indices of morphological and functional severity of coronary artery stenosis. Flow reserve can be determined at coronary arterial or at myocardial level. In the presence of functional collateral circulation, coronary flow reserve and myocardial perfusion reserve may differ. We studied coronary flow, coronary flow reserve and myocardial perfusion reserve in an open chest dog model with intact collateral circulation, before and after induction of coronary art...
Abstract
Cited 5 times since 1995 (0.2 per year)
source: EuropePMC
Cell calcium,
Volume 18, Issue 6, 1 1 1995, Pages 515-525
Alpha-adrenergic agonist and endothelin-1 induced intracellular Ca2+ response in the presence of a Ca2+ entry blocker in cultured rat ventricular myocytes.
De Jonge HW, Atsma DE, van der Valk-Kokshoorn EJ, van Heugten HA, van der Laarse A, Lamers JM
Previously we demonstrated that stimulation of cultured neonatal rat ventricular myocytes by either alpha 1-adrenergic agonist or endothelin-1 resulted in a rapid formation of total inositolphosphates, although the levels of inositol 1,4,5-trisphosphate and inositol 1,3,4,5-tetrakisphosphate did not rise significantly. The aim of this study was to examine whether stimulation by alpha 1-adrenergic agonist and endothelin-1 could still elicit phosphatidylinositol cycle mediated intracellular Ca2+ m...
Abstract
Cited 5 times since 1995 (0.2 per year)
source: EuropePMC
American heart journal,
Volume 130, Issue 5, 1 1 1995, Pages 1020-1025
Heart rate variability profiles in symptomatic coronary artery disease and preserved left ventricular function: relation to ventricular tachycardia and transient myocardial ischemia. Regression Growth Evaluation Statin Study (REGRESS).
van Boven AJ, Jukema JW, Crijns HJ, Lie KI
We studied heart rate variability in ambulatory electrocardiographic recordings from 312 patients with significant coronary artery disease and a left ventricular ejection fraction of > or = 30%. Only those patients who had both episodes of ischemia and nonsustained ventricular arrhythmias showed diminished values for parasympathetic nonspectral and spectral heart rate (HR) variability parameters. The root mean square of difference of successive R-R intervals (RMSSD) and high-frequency (HF) po...
Abstract
Cited 151 times since 1995 (5.1 per year)
source: EuropePMC
Circulation,
Volume 92, Issue 9, 1 1 1995, Pages 2419-2425
Reduction in cardiovascular events during pravastatin therapy. Pooled analysis of clinical events of the Pravastatin Atherosclerosis Intervention Program.
Byington RP, Jukema JW, Salonen JT, Pitt B, Bruschke AV, Hoen H, Furberg CD, Mancini GB
Background: It has been documented that the HMG coenzyme A reductase inhibitors, or statins, can decrease cardiovascular events and mortality in patients with clinical coronary disease and moderately to severely elevated lipid levels. Additional data are required to demonstrate a reduction of vascular events in coronary patients with less than severely elevated lipid levels and in subgroups of this population. Methods and results: Clinical data from four atherosclerosis regression trials that ev...
Abstract
Cited 81 times since 1995 (2.7 per year)
source: EuropePMC
Circulation,
Volume 92, Issue 9, 1 1 1995, Pages 2723-2739
Magnetic resonance imaging in coronary artery disease.
van der Wall EE, Vliegen HW, de Roos A, Bruschke AV
The cardiovascular applications of nuclear magnetic resonance (MR) techniques in coronary artery disease have increased considerably in recent years. Technical advantages of MR imaging in comparison with other techniques are the excellent spatial resolution, the characterization of myocardial tissue, and the potential for three-dimensional imaging. This allows the accurate assessment of left ventricular mass and volume, the differentiation of infarcted tissue from normal myocardial tissue, and t...
Abstract
Cited 2 times since 1995 (0.1 per year)
source: EuropePMC
The American journal of cardiology,
Volume 76, Issue 12, 1 1 1995, Pages 922-927
Similar orthostatic defense in active, healthy young adult and late middle-aged men.
Bootsma M, Swenne CA, Bruschke AV
Orthostatic defense is commonly validated with a 60 degrees to 80 degrees head-up tilt test, addressing the step response rather than the response to permanent orthostatis. During the initial phase of tilt, neural factors predominate, while later, the slower humoral factors fade in. It has been demonstrated that, during adaptation of the circulatory system to the standing conditions, overshoot and undershoot occur. These oscillations hamper straight-forward interpretation of a tilt test, and may...
Abstract
Cited 10 times since 1995 (0.3 per year)
source: EuropePMC
Magnetic resonance in medicine,
Volume 34, Issue 5, 1 1 1995, Pages 728-737
Magnetic resonance imaging analysis of left ventricular pressure-volume relations: validation with the conductance method at rest and during dobutamine stress.
Pattynama PM, de Roos A, Van der Velde ET, Lamb HJ, Steendijk P, Hermans J, Baan J
The accuracy of magnetic resonance (MR) imaging was assessed for in vivo measurement of the ventricular end-systolic pressure-volume relation (ESPVR) and preload recruitable stroke work (PRSW). The conductance catheter was used as reference. In 10 pigs, ventricular volumes were measured with both methods under different loading conditions at two levels of contractility. Increased contractility resulted in a significant leftward shift of the ESPVR and PRSW for both methods. The magnitude of these...
Abstract
Cited 3 times since 1995 (0.1 per year)
source: EuropePMC
Laboratory animals,
Volume 29, Issue 4, 1 1 1995, Pages 459-463
Spleen pigmentation in young C57BL mice is caused by accumulation of melanin.
van der Heijden A, van Dijk JE, Lemmens AG, Beynen AC
It has been previously reported that in 2 C57BL mouse sublines a dark pigmentation of the cranial part of the spleen occurs in up to 30% of the animals within the populations. It was not clear whether this discoloration is caused by melanosis, lipofuscinosis or haemosiderosis. With the use of light and electron microscopy of stained spleen sections, we identified the pigment in 14 out of 60 C57BL mice aged 8-10 wks. In the mice with pigmented spleens there was accumulation of melanin, predominan...
Abstract
Cited 54 times since 1995 (1.8 per year)
source: EuropePMC
The American journal of cardiology,
Volume 76, Issue 9, 1 1 1995, Pages 40C-46C
Effect of pravastatin on progression and regression of coronary atherosclerosis and vessel wall changes in carotid and femoral arteries: a report from the Regression Growth Evaluation Statin Study.
de Groot E, Jukema JW, van Boven AJ, Reiber JH, Zwinderman AH, Lie KI, Ackerstaff RA, Bruschke AV
Few data are available about the potential benefit of serum cholesterol reduction in the broad range of patients with coronary atherosclerosis and normal to moderately elevated serum cholesterol levels. REGRESS is a double-blind, placebo-controlled, multicenter study to assess the effect of a 2-year treatment with the 3-hydroxy-3-methylglutaryl co-enzyme A reductase inhibitor pravastatin on progression and regression of coronary atherosclerosis using quantitative coronary arteriography in 885 ma...
Abstract
Cited 53 times since 1995 (1.8 per year)
source: EuropePMC
The Journal of general virology,
Volume 76 ( Pt 9), 1 1 1995, Pages 2223-2233
Comparison of equine arteritis virus isolates using neutralizing monoclonal antibodies and identification of sequence changes in GL associated with neutralization resistance.
Glaser AL, de Vries AA, Dubovi EJ
Three murine monoclonal antibodies (MAbs) that neutralize equine arteritis virus (EAV) infectivity were identified and characterized. The antibodies, 93B, 74D(B) and 38F, recognized the major envelope glycoprotein (GL) encoded by open reading frame (ORF) 5 in immunoblots and by immunoprecipitation. All three MAbs were used to compare the Bucyrus isolate of EAV and MAb neutralization-resistant (NR) escape mutants with the vaccine virus and 19 independent field isolates of EAV by virus neutralizat...
Abstract
Cited 13 times since 1995 (0.4 per year)
source: EuropePMC
German journal of ophthalmology,
Volume 4, Issue 5, 1 1 1995, Pages 311-314
Microperimetry in patients with central serous retinopathy.
Toonen F, Remky A, Janssen V, Wolf S, Reim M
In patients with acute central serous retinopathy (CSR), evaluation of visual acuity alone may not represent visual function. In patients with acute CSR, visual function may be disturbed by localized scotomas, distortion, and waviness. For the assessment of localized light sensitivity and stability of fixation, patients with CSR were evaluated by fundus perimetry with a scanning laser ophthalmoscope (SLO 101, Rodenstock Instruments). In all, 21 patients with acute CSR and 19 healthy volunteers w...
Abstract
Cited 14 times since 1995 (0.5 per year)
source: EuropePMC
Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research,
Volume 10, Issue 9, 1 1 1995, Pages 1374-1384
Regulation of plasminogen activation, matrix metalloproteinases and urokinase-type plasminogen activator-mediated extracellular matrix degradation in human osteosarcoma cell line MG63 by interleukin-1 alpha.
de Bart AC, Quax PH, Löwik CW, Verheijen JH
Plasmin-mediated extracellular proteolysis has been implicated in the degradation of bone in normal and pathological conditions. Normal and malignant osteoblasts can produce both tissue-type plasminogen activator (t-PA) and urokinase-type plasminogen activator (u-PA). We have used the osteosarcoma cell line MG63 to address the question of whether the enhanced bone turnover in osteosarcomas is mediated by t-PA or by u-PAA and to study the effect of the cytokine interleukin-1 alpha (IL-1 alpha), k...
Abstract
