Inappropriate and excessive activation of the sympathetic nervous system has been invoked as a cause of coronary heart disease. This pathophysiological linkage can take 2 forms. The most direct and explicit is when acute sympathetic nervous activation triggers adverse cardiac events (myocardial infarction, atrial fibrillation, ventricular arrhythmias, and Takotsubo cardiomyopathy have all been ...

Elevated sympathetic activity changes renal function and accelerates the development of hypertension. Principles of sympatho-renal interactions in chronic hypertension are reviewed. Alterations in the ontogeny of the sympathetic nervous system and the kidney, inherited abnormalities in sensory receptor function and exaggerated responsiveness to mental stress contribute to inappropriately high s...

We reported the realization of a 174Yb+–113Cd+ bi-species Coulomb crystal comprising 174Yb+, heavier ion, as coolant and verified potential applying ion with greater mass than clock to sympathetically cooled microwave frequency standard. The two species massive ions stably trapped in Paul trap make up this large two-component crystal. 113Cd+ are center, which reduces considerably RF heating exc...

In human and experimental models of heart failure there is widespread change in the sympathetic nervous system. This involves preferential activation of the sympathetic nervous outflow to the heart, impairment of norepinephrine reuptake by sympathetic nerves, and reduction of the content of norepinephrine in the failing myocardium, attributable in part to sympathetic neuronal rarefaction.1–4 Mi...

The authors experimentally demonstrate the production of quantum degenerate Bose-Bose mixtures cesium and ytterbium with attractive repulsive interactions through sympathetic cooling. This development adds another system to ultracold-atom toolbox, enabling future studies droplets binary fluid dynamics.

This paper examines the interaction between metacognition and stress response. Specifically, main purpose of this study is to trace metacognition, sympathetic-parasympathetic nervous system basic stress-related hormones/neurotransmitters. To achieve aim, research seeks address following questions: Can regulate hormones sympathetic hyperactivity? How can it contribute regulation uncontrollable s...

It has long been proposed that the renin-angiotensin system exerts a stimulatory influence on the sympathetic nervous system, including augmentation of central sympathetic outflow and presynaptic facilitation of norepinephrine release from sympathetic nerves. We tested this proposition in 19 patients with essential hypertension, evaluating whether the angiotensin receptor blockers (ARBs) eprosa...

Among young normotensive men, a reciprocal balance between cardiac output and sympathetic nerve activity is important in the regulation of arterial pressure. In young women, the balance among cardiac output, peripheral resistance, and sympathetic nerve activity is unknown. Consequently, the aim of this study was to examine the relationship of cardiac output and total peripheral resistance to mu...

A large body of clinical investigation implicates an important role for the sympathetic nervous system in linking obesity with hypertension. However, the experimental support for this hypothesis is derived from strictly white cohorts. The goal of this study was to determine whether being overweight begets sympathetic overactivity in black Americans, the ethnic minority at highest risk for hyper...

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 on blood samples withdrawn from an an...