Publication

In vitro diameter response of rat femoral artery to flow in the presence and absence of endothelium

Nikolaos Stergiopoulos, Jean-Jacques Meister
2001
Journal Articles

Abstract

We have examined the diameter response of rat femoral artery segments in the presence and absence of endothelium to changes in flow rate. The segments were isolated, mounted on microcannulae, maintained at 37 degrees C, and perfused at 90 mmHg with Tyrode's solution. The external arterial diameter was measured using video-microscopy. The mean control diameter was 741+/-22 microm (mean+/-SEM,n=7). The arteries were preconstricted to 75+/-1% of the control diameter with a superfusion of 1 microM norepinephrine (NE). Endothelial function was verified by perfusion of 1 micro;M acetylcholine (ACh). Two different flow protocols were employed: step changes in flow (n=7) and low-frequency sinusoidal flow changes (0.01Hz

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https://infoscience.epfl.ch/entities/publication/8d3cfcf3-7ced-4a24-833f-014a061189ab

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Nikolaos Stergiopoulos, Jean-Jacques Meister
2001
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/8d3cfcf3-7ced-4a24-833f-014a061189ab

About this result

Related concepts (32)

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A low-pass filter is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. The exact frequency response of the filter depends on the filter design. The filter is sometimes called a high-cut filter, or treble-cut filter in audio applications. A low-pass filter is the complement of a high-pass filter. In optics, high-pass and low-pass may have different meanings, depending on whether referring to the frequency or wavelength of light, since these variables are inversely related.

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In vitro diameter response of rat femoral artery to flow in the presence and absence of endothelium

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