Sentence examples for sympathetic traffic from inspiring English sources
These data show that use of EMLA cream prior to microneurography is innocuous, and do not support the hypothesis that baseline sympathetic traffic is increased by pain or discomfort associated with microneurography.
It has been suggested that one such mechanism could be a high rate of post-ganglionic cardiac sympathetic traffic whereby the locally increased rate of translocation of neurotransmitter vesicles to the membrane surface and an increased rate of exocytosis result in decreased regional 123I-mIBG uptake and higher washout.
Such aberrant neuroplasticity enables catecholamines and sympathetic traffic to induce sensory neuron firing.
Beyond essential hypertension, efferent sympathetic traffic is logically linked with the three major physiologic features identified as the renal component of the "cardiorenal syndrome" [ 23, 24]: excess renin release, rightward shift of the pressure-natriuresis relation and reduced renal blood flow and glomerular filtration rates.
The electrocardiogram, and efferent sympathetic nerve traffic from peroneal nerve muscle fascicles at the popliteal fossa were recorded during a 10-min supine rest period.
A further significant increase in muscle sympathetic nerve traffic was detected in subjects with the metabolic syndrome (61.0 ± 3.2 bursts per 100 heart beats, P <.05).
EMLA cream significantly reduced perception of pain (P<0.05), but did not affect burst reflex latencies from preceding R-waves or total muscle sympathetic nerve traffic (P>0.05).
The present study was designed to assess the reproducibility of the two markers of adrenergic drive, venous plasma norepinephrine and efferent postganglionic muscle sympathetic nerve traffic (MSNA) in reflecting the sympathetic activation characterizing the obese state in human beings.
Muscle sympathetic nerve traffic values were significantly higher in subjects with hypertension and in those with obesity than in controls (51.2 ± 2.8 and 52.0 ± 3.0 vs 37.2 ± 3.3 bursts per 100 heart beats, respectively; P <.01 for all).
In contrast, skin sympathetic nerve traffic was not significantly different in the 4 groups of individuals (13.0 ± 0.7, 14.3 ± 1.3, 12.5 ± 0.8 vs 15.4 ± 1.0 bursts per minute, respectively; P = not significant).
Our study suggests that acute ozone-induced airway inflammation does not increase resting sympathetic nerve traffic in healthy subjects, an observation that is relevant for environmental health.
