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Keywords: noradrenaline
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Articles
Clin Sci (Lond) (2013) 124 (9): 589–595.
Published: 21 January 2013
... daily, losartan 200 mg/day decreased MSNA significantly ( P <0.05), by approximately 15 bursts/min, and increased MSNA variability within the 0.27–0.33 Hz high-frequency range by 0.11 units 2 /Hz ( P =0.06). PNE [plasma noradrenaline (norepinephrine)] fell in parallel with changes in MSNA ( r =0.62...
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Clin Sci (Lond) (2012) 122 (7): 337–348.
Published: 07 December 2011
... methyl ester) and the CGRP (calcitonin gene-related peptide) receptor antagonist CGRP-(8–37) in mesenteric segments from ST (short-term; 1 month) and LT (long-term; 21 months) SO (sham-operated) and pre-hepatic PH (portal hypertensive) rats. The vasomotor responses to NA (noradrenaline), the NO donor DEA...
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Clin Sci (Lond) (2008) 114 (5): 375–380.
Published: 01 February 2008
..., catecholamines and ACE activity were determined in plasma. Circulating noradrenaline levels were significantly elevated in SGA girls compared with AGA girls ( P =0.036). In addition, angiotensin II and ACE activity were higher in SGA boys ( P =0.024 and P =0.050 respectively). There was a significant association...
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Clin Sci (Lond) (2006) 111 (2): 163–169.
Published: 13 July 2006
... both exercise work bouts for measurements of WBC count, leucocyte subset counts, cortisol, adrenaline (epinephrine) and noradrenaline (norepinephrine). WBC, neutrophil and lymphocyte counts increased significantly ( P <0.05) during rest and exercise from SL to PreIAE and decreased ( P <0.05...
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Clin Sci (Lond) (2006) 110 (3): 369–377.
Published: 10 February 2006
... patients with Parkinson's disease (PD) with Hoehn and Yahr stages 1–4. Patients were investigated once with their regular treatment and once after 12 h of interruption of L -dopa treatment. L -Dopa intake significantly reduced systolic and diastolic blood pressure, heart rate and plasma noradrenaline...
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Clin Sci (Lond) (2005) 109 (5): 431–437.
Published: 24 October 2005
... are present in the brain, kidney, heart and vasculature. However, each differentially influences blood pressure and sympathetic transmission. Activation of α 2A -ARs in cardiovascular control centres of the brain lowers blood pressure and decreases plasma noradrenaline (norepinephrine), activation...
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Clin Sci (Lond) (2003) 104 (6): 649–654.
Published: 01 June 2003
...David S. GOLDSTEIN; Courtney HOLMES; Nicholas PATRONAS; Irwin J. KOPIN In multiple system atrophy (MSA) and pure autonomic failure (PAF), orthostatic hypotension (OH) results from deficient noradrenaline release from sympathetic nerves during standing. Post-mortem findings have indicated loss...
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Clin Sci (Lond) (2002) 102 (6): 661–666.
Published: 14 May 2002
... as an antagonist of ET-1 has not been evaluated in the forearm. The present study investigated the effects of BQ-123 on changes in FBF in response to ET-1 and noradrenaline (NA; norepinephrine), taking into account the possible influence of vasodilator effects of BQ-123 on responses to vasoconstrictors. Six...
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Clin Sci (Lond) (2001) 101 (4): 377–383.
Published: 14 September 2001
... the first exercise session. Compared with sea level, hypoxia progressively decreased the maximal heart rate from day 1 and onwards; also, hypoxia by itself increased plasma noradrenaline levels after maximal exercise. Domperidone further increased maximal noradrenaline concentrations, but had no effect...
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Clin Sci (Lond) (1999) 97 (6): 639–647.
Published: 29 October 1999
... in normal renal interlobular and subcutaneous vessels from uraemic patients. In human subcutaneous arteries from uraemic subjects, noradrenaline- and KCl-induced vasoconstrictions were enhanced when nitric oxide (NO) production was blocked with N G -nitro- L -arginine methyl ester ( L -NAME), but were...
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Clin Sci (Lond) (1999) 97 (5): 539–546.
Published: 17 September 1999
... cannulation in either the dominant or the non-dominant forearm. Cannulation of a forearm brachial artery has a small effect on baseline blood flow. Responses to intra-arterially infused noradrenaline (norepinephrine) were not influenced by left or right arm dominance. Intravenous infusion of noradrenaline...
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Clin Sci (Lond) (1999) 97 (3): 277–282.
Published: 15 July 1999
... of NO biosynthesis), relative to the response to noradrenaline, has been reported in hypertensive patients and interpreted as evidence of reduced basal NO biosynthesis. We sought to determine whether reduced sensitivity of forearm vasculature to the vasoconstrictor action of l -NMMA relative to that of noradrenaline...
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Clin Sci (Lond) (1999) 96 (6): 613–621.
Published: 11 May 1999
... with healthy subjects), but the acceleratory response to atropine, or to 60 ° head-up tilt, was maintained. Resting plasma noradrenaline levels were high in acute GBS, but the secretory response to tilt was preserved. Desensitization to noradrenaline was observed in acute GBS with a reduced pressor action...
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Clin Sci (Lond) (1999) 96 (5): 483–491.
Published: 14 April 1999
... -, β 2 - and β 3 -adrenoreceptors. Twenty-four-hour energy expenditure was 3.6% greater (8965±1301 versus 8648±1347 kJ, P < 0.05) with ephedrine than with placebo, but mechanical work was not different between the ephedrine and placebo periods. Noradrenaline excretion was lower with ephedrine (0.032...
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Clin Sci (Lond) (1999) 96 (2): 191–197.
Published: 01 February 1999
... of neurotransmitter stemming from the brain. By combining this technique with a noradrenaline and adrenaline isotope dilution method for examining neuronal transmitter release, we were able to examine the association between central nervous system neurotransmitters and efferent sympathetic nervous outflow...
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Clin Sci (Lond) (1998) 96 (1): 41–47.
Published: 01 January 1999
... operated. In rat aorta, there was no significant difference between portal hypertensive and sham-operated animals in the contractile potency of KCl, noradrenaline or phenylephrine. In aortas from Wistar rats, the maximum response to KCl (0.71±0.12 ;g) and noradrenaline (1.00±0.17 ;g) but not phenylephrine...
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Clin Sci (Lond) (1998) 94 (6): 601–607.
Published: 01 June 1998
... nitroprusside (5 and 10 μg/min), before and after 1 h of sustained hypertension, induced by noradrenaline given intravenously. Identical measurements were made in 11 subjects before and during concomitant local intra-arterial infusion of noradrenaline without change in blood pressure and eight subjects were...
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Clin Sci (Lond) (1998) 94 (6): 609–614.
Published: 01 June 1998
... the endogenous insulin response was inhibited with subcutaneous octreotide. 3. After placebo, hypertensive patients had slightly but significantly higher blood glucose levels than controls ( P < 0.0001), but comparable insulin concentrations ( P > 0.5). Plasma noradrenaline levels were consistently lower...
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Clin Sci (Lond) (1997) 93 (6): 519–525.
Published: 01 December 1997
... occlusion venous plethysmography combined with brachial artery infusions of the nitric oxide synthase inhibitor, N G -monomethyl-l-arginine (l-NMMA; 1, 2 and 4 μmol/min) with noradrenaline (60, 120 and 240 pmol/min) as a control vasoconstrictor. We also measured urinary nitrate excretion after a controlled...
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Clin Sci (Lond) (1997) 93 (3): 227–234.
Published: 01 September 1997
...-arginine to adriamycin-pregnant rats or of N G -nitro-l-arginine-methyl ester (l-NAME) to normal pregnant rats. In other experiments, we assessed the response of isolated perfused arterial mesenteric vessels, precontracted with noradrenaline, to acetylcholine, l-arginine or l-NAME. 3. Blood pressure...
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Clin Sci (Lond) (1997) 92 (4): 423–430.
Published: 01 April 1997
... and the Medical Research Society 1997 amino acid catecholamine dihydroxyphenylacetic acid 3,4-dihydroxyphenylalanine noradrenaline sympathetic activity Clinical Science (1997) 92,423-430 (Printed in Great Britain) 423 Effects of ordinary meals on plasma concentrations of 3,4=dihydroxyphenylalanine...
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Clin Sci (Lond) (1997) 92 (2): 133–138.
Published: 01 February 1997
... inhibitor, N G -monomethyl- l -arginine, and a control vasoconstrictor, noradrenaline. 2. Substance P and acetylcholine caused dose-dependent increases in forearm blood flow ( P < 0.001). When separated by 30 min saline infusions, repeated responses did not undergo tachyphylaxis. 3. Noradrenaline caused...
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Clin Sci (Lond) (1995) 89 (4): 343–348.
Published: 01 October 1995
... given 1000 i.u, of vitamin E per day for a 4-week period, while five additional non-smokers received placebo. Forearm blood flow responses to intra-arterial infusion of noradrenaline (60, 120 and 240pmol/min) and the competitive inhibitor of nitric oxide synthesis, NG-monomethyl-L-arginine (1, 2 and 4...
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Clin Sci (Lond) (1995) 89 (2): 145–154.
Published: 01 August 1995
... nervous activity in healthy, lean subjects. 2. In nine male subjects, noradrenaline spillover was measured from the heart, kidney and liver using isotope dilution, both while fasting and after consumption of a high-energy liquid meal of composition 53% carbohydrate, 32% fat and 15% protein (energy value...
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Clin Sci (Lond) (1995) 88 (5): 525–531.
Published: 01 May 1995
...Florence Wong; Arieh Bomzon; Alexander Logan; Laurence Blendis 1. This study assesses the effects of sodium status on venous responsiveness to noradrenaline and the neurohumoral profile in pre-ascitic cirrhotic patients. Eight cirrhotic patients and ten control subjects were studied after both...
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Clin Sci (Lond) (1995) 88 (4): 421–426.
Published: 01 April 1995
... to microvascular disease. We have previously found that vasoconstrictive responses to noradrenaline are exaggerated in insulin-dependent diabetic patients with microalbuminuria as compared with both normoalbuminuric insulin-dependent diabetic patients and non-diabetic control subjects. 2. To determine whether...
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Clin Sci (Lond) (1995) 88 (4): 439–446.
Published: 01 April 1995
...Kjell Larsson; Per Carlens; Sture Bevegård; Paul Hjemdahl 1. Bronchoconstriction does not seem to be a stimulus for sympathoadrenal activation, as judged by venous plasma concentrations of noradrenaline, adrenaline or neuropeptide Y-like immunoreactivity. However, venous measurements have...
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Clin Sci (Lond) (1994) 86 (3): 245–249.
Published: 01 March 1994
... rabbit kidney perfused in the presence of indomethacin (10 μmol/l) and preconstricted with noradrenaline (7.2 nmol/min). 2. Under control conditions, bolus administrations of acetylcholine (10 μmol/l), an NO-dependent renal vasodilator, verapamil (0.1 mmol/l), an NO-independent renal vasodilator...
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Clin Sci (Lond) (1994) 86 (1): 35–41.
Published: 01 January 1994
... stress. 2. To assess the biological variability within individuals, ten subjects were sampled on five occasions over 8–30 h. The intra-individual coefficients of variation for plasma and platelet noradrenaline levels were 193 +10% and 9.5 +4.2%, respectively, and for plasma and platelet adrenaline levels...
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Clin Sci (Lond) (1993) 84 (4): 413–417.
Published: 01 April 1993
...Alastair J. McCance; J. Colin Forfar 1. To investigate the effects of acute β 1 -adrenoceptor blockade on sympathetic nervous activity, cardiac and whole-body noradrenaline kinetics were determined during intravenous infusions of saline placebo and of metoprolol (10-15 mg plus 150 μg min −1 kg −1...