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Items for "circulation"

Which endothelium-derived factors are really important in humans?

The endothelium plays a primary role in the local control of vascular function and structure, mainly by the production and release of NO, a potent vasodilator that also inhibits all the mechanisms involved in the pathogenesis of atherosclerosis, thus protecting the vessel wall against the development of atherosclerosis and thrombosis...

Keywords: circulation, endothelium, nitric oxide, oxidative stress, vascular reactivity

02/2006 | Biological Chemistry, Walter de Gruyter
Umbilical artery pulsatility index: reliability at different sampling sites

Objectives: To analyse the inter-observer and inter-artery reliability of the umbilical artery (UA) pulsatility index (PI) at different sampling sites.

Methods: One hundred consecutive singleton pregnancies between 24 and 40 weeks were included...

Keywords: circulation, Doppler, fetus, placenta, reliability analysis, umbilical artery

10/2006 | Journal of Perinatal Medicine, Walter de Gruyter