... cholinomimetic drug, on echocardiographic variables during mental stress in healthy subjects. A total of 18 healthy young volunteers were subjected to mental stress tests (mental arithmetic and the Stroop colour–word test) 2 h after the oral administration of either placebo or pyridostigmine bromide (45 mg...

...-to-moderate essential hypertension. Fibrinogen, thrombin–antithrombin complex (TAT) and Factor VII were determined in plasma at rest and after a mental stress test following placebo for 6 weeks, or ramipril for 6 weeks or 6 months. Ramipril reduced resting TAT, and tended to reduce fibrinogen; Factor VII...

... in neurohumoral and haemodynamic parameters during the psychological challenges of daily life. Correspondence: Dr J. H. M. Tulen. The Biochemical Society and the Medical Research Society © 1999 1999 body posture cardiovascular variability mental stress plasma catecholamines 567Clinical...

... reproducibility and high test-retest correlations. However, stress-induced changes in venous plasma catecholamine concentrations show low reproducibility. Key words: catecholamines, haemodynamic factors, mental stress, mood assessment, test-retest reproduci- bility. Correspondence: Dr Sverker Jern, Department...

... test and mental stress test all could induce a rise in blood pressure, despite the presence of sympathetic vasomotor lesions, but only when accompanied by a rise in heart rate. Efferent parasympathetic blockade by atropine, resulting in an increase in heart rate, was also accompanied by a substantial...

...P. T. Larsson; P. Hjemdahl; G. Olsson; N. Egberg; G. Hornstra 1. The effects of mental stress induced by a colour word conflict test (CWT; n = 9) or 3 h infusions of placebo or adrenaline (0.4 nmol min −1 kg −1 ; n = 9) on platelet function in vivo were studied in 16 healthy male volunteers. 2...

...G. Eisenhofer; D. G. Lambie; R. H. Johnson 1. Twenty-five normotensive men were subjected to two periods of mental stress involving a cognitive task and a competitive electronic game. Plasma catecholamines, heart rate and blood pressure were measured before and during mental stress. Responsiveness...

...S. Lundin; P. Thorén 1. The role of the renal sympathetic nerves in the urinary sodium excretion response to ‘mental stress’ in spontaneously hypertensive rats (SHR) and in Wistar-Kyoto normotensive (WKY) rats was examined. Urinary sodium excretion was measured during ‘rest’ and during a 20 min...

..., heart rate and noradrenaline in response to mental stress. By contrast, hydrochlorothiazide resulted in the reduction of systolic pressure only. The mental stress testing produced a greater absolute diastolic pressure response and higher plasma noradrenaline on hydrochlorothiazide therapy. 3. Juveniles...

... pressure and day/night sodium excretion in children of hypertensive parents but not in children of normotensive parents. 4. After the mental stress of a University examination day/night sodium reverted to normal in children of hypertensive parents. © 1980 The Biochemical Society and the Medical Research...

...W. Januszewicz; M. Sznajderman; B. Wocial; T. Feltynowski; T. Klonowicz 1. Ten patients with essential hypertension and ten healthy men were submitted to mental stress consisting of Kraepelin's arithmetic test combined with noise. Concentrations of plasma and urine catecholamines...

...P. Hjemdahl; K. Eliasson 1. Seven latent hypertensive patients and seven matched controls were subjected to standardized mental stress and orthostatic provocation. 2. Mental stress increased blood pressure by approximately 25%, heart rate by 25 beats/min, plasma glycerol by 50% and plasma cyclic...