Carlo Turri

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Previous studies have shown that essential hypertension and obesity are both characterized by sympathetic activation coupled with a baroreflex impairment. The present study was aimed at determining the effects of the concomitant presence of the 2 above-mentioned conditions on sympathetic activity as well as on baroreflex cardiovascular control. In 14(More)
BACKGROUND Human aging is characterized by a marked increase in muscle sympathetic nerve traffic (MSNA). No information exists, however, on the effects of aging on skin sympathetic nerve traffic (SSNA) and on its reflex modulation by thermoregulatory mechanisms. METHODS AND RESULTS In 13 young, 11 middle-aged, and 12 elderly healthy subjects, we measured(More)
1. Although plasma noradrenaline and muscle sympathetic nerve traffic have been shown to be suitable markers of sympathetic activity in man, no study has systematically compared the reproducibility and sensitivity of these two indices of adrenergic tone. 2. Reproducibility data were collected in 10 subjects, in whom plasma noradrenaline was assessed by HPLC(More)
  • G Grassi, G Seravalle, +4 authors G Mancia
  • 2001
Previous studies have shown that hypothalamic and hypophyseal factors are involved in the acute sympathoexcitation induced by a variety of laboratory stimuli. Whether a chronic condition of sympathetic activation, such as that characterizing human obesity, is also dependent on these factors has never been investigated. In 40 normotensive obese subjects(More)
Antihypertensive treatment with dihydropyridines may be accompanied by sympathetic activation. Data on whether this is common to all compounds and similar in the various phases of treatment are not univocal, however. In 28 untreated essential hypertensives (age, 56.4+/-1.8 years; mean+/-SEM) finger blood pressure (BP, Finapres), heart rate (HR, ECG), plasma(More)
Pheochromocytoma is usually characterized by a marked increase in peripheral catecholamine secretion. Whether this is accompanied by an alteration in central sympathetic drive has not been clarified. In 6 patients with adrenal pheochromocytoma (mean+/-SEM age, 49. 3+/-7.2 years), we measured systolic and diastolic blood pressure (photoplethysmographic(More)
Congestive heart failure is characterized by a sympathetic activation that is coupled with a baroreflex impairment. Whether these alterations are affected by clonidine is unknown. In 26 normotensive patients age 58.0+/-1.1 years (mean+/-SEM) affected by congestive heart failure (New York Heart Association functional class II or III) and treated with(More)
Provoked premature ventricular contractions (PVCs) evoke, in concomitance with an early and late blood pressure fall and overshoot, an early sympathoexcitation and a later period of sympathoinhibition, respectively. The present study was designed to examine whether in healthy subjects this is the case for spontaneous PVCs. Because of their(More)
The world-wide size of social networks, such as Facebook and Twitter, is making possible to analyse the realtime behaviour of large groups of people, such those attending popular events. This paper presents work and results on the analysis of geotagged tweets carried out to understand the behaviour of people attending the 2014 FIFA World Cup. We monitored(More)
A 70-year-old woman was referred to cardiac evaluation because of the detection of dilation of the main pulmonary artery by chest computed tomography performed before the removal of a thoracic lipoma. The computed tomography scan with contrast also excluded arterial thromboembolism of the main and distal pulmonary branches. The patient had a previous(More)
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