1995
DOI: 10.1097/00004872-199509000-00016
|View full text |Cite
|
Sign up to set email alerts
|

Arterial spontaneous rhythmic contractile activity in humans and rats: spectral analysis and regulatory mechanisms

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
2

Citation Types

1
14
0
3

Year Published

1998
1998
2006
2006

Publication Types

Select...
8

Relationship

0
8

Authors

Journals

citations
Cited by 20 publications
(18 citation statements)
references
References 0 publications
1
14
0
3
Order By: Relevance
“…Inhibition of NOS increases arterial pressure oscillations at low frequencies in rats (16) and dogs (15) and increases steady-state arterial pressures in humans (11,12). On the basis of this evidence and evidence that the peripheral vasculature seems to possess intrinsic rhythmicity (10,21,30), we tested the hypothesis that NO contributes importantly to the control of arterial pressure rhythms in humans. Our data confirm a primary role for NO in maintaining stable arterial pressures at rest but provide evidence against the notion that dynamic oscillations of pressure, including naturally occurring rhythms at the frequency of Mayer waves, depend critically on tonic NO activity.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Inhibition of NOS increases arterial pressure oscillations at low frequencies in rats (16) and dogs (15) and increases steady-state arterial pressures in humans (11,12). On the basis of this evidence and evidence that the peripheral vasculature seems to possess intrinsic rhythmicity (10,21,30), we tested the hypothesis that NO contributes importantly to the control of arterial pressure rhythms in humans. Our data confirm a primary role for NO in maintaining stable arterial pressures at rest but provide evidence against the notion that dynamic oscillations of pressure, including naturally occurring rhythms at the frequency of Mayer waves, depend critically on tonic NO activity.…”
Section: Discussionmentioning
confidence: 99%
“…With this construct, waxing and waning of arterial pressures around 0.1 Hz are likely driven by arterial baroreceptor input (9). Second, low-frequency arterial pressure rhythms have been recorded in patients with cervical spinal cord lesions (10) and in isolated mesenteric arteries (21), suggesting the possibility that the peripheral vasculature possesses intrinsic rhythmicity independent of baroreflex feedback loops. The notion that Mayer waves reflect vascular sympathetic outflow has recently been challenged (27), and therefore factors that may contribute directly to vascular rhythmicity warrant further investigation.…”
mentioning
confidence: 88%
“…An LF rhythm, which could be independent from neural inputs, has also been described in the vasomotor tone in animals as well as in humans (98,118). In conditions of baroreflex unloading, such as with sodium nitroprusside, increases in sympathetic activity and R-R interval are accompanied by clear increases in LF power of these measurements (118).…”
Section: Arterial Baroreflex and Cardiovascular Variabilitymentioning
confidence: 91%
“…However, phentolamine did not suppress completely the LF oscillations in cardiovascular variability, suggesting the possibility that LF vasomotor oscillations may persist even in the absence of intact neurovascular transmission. These neural-independent oscillations could either indicate the presence of "autoregulatory" properties (98) or be an expression of the modulation operated by the nitric oxide system (79), as described below.…”
Section: Arterial Baroreflex and Cardiovascular Variabilitymentioning
confidence: 99%
“…Previous studies have shown that this phenomenon is not endothelium-dependent (42,43) and our findings support this view. In humans, SRC was described in coronary arteries (44), small omental arteries (45), pial arteries (46), and placental vessels (47). This phenomenon was previously described in human RA; it concerned fluctuation of blood flow through RA.…”
Section: Discussionmentioning
confidence: 99%