نتایج جستجو برای: vascular density

تعداد نتایج: 621090  

2016
Esther Kur Jiha Kim Aleksandra Tata Cesar H Comin Kyle I Harrington Luciano da F Costa Katie Bentley Chenghua Gu

Vascular network density determines the amount of oxygen and nutrients delivered to host tissues, but how the vast diversity of densities is generated is unknown. Reiterations of endothelial-tip-cell selection, sprout extension and anastomosis are the basis for vascular network generation, a process governed by the VEGF/Notch feedback loop. Here, we find that temporal regulation of this feedbac...

Journal: :American journal of physiology. Heart and circulatory physiology 2003
David J Nusz David C White Qunsheng Dai Anne M Pippen Michael A Thompson G Brant Walton Cyrus J Parsa Walter J Koch Brian H Annex

A decrease in vascular density in peripheral skeletal muscle has been associated with exercise intolerance in humans with congestive heart failure (CHF). The purpose of this study was to determine whether CHF results in a reduction in vascular density in peripheral skeletal muscle. In this established model, CHF was induced by coronary artery ligation in New Zealand White rabbits and sham rabbi...

2016
T. Díaz C. I. Merkis D. S. Cots E. G. Sanchis A. L. Cristofolini M. C. Romanini A. Bozzo A. Rolando

The increase intransplacental exchange depends primarily on the great development of the placental vascular bed. The aim of this study was to evaluate the pattern of placental vascular development at day 50 and 100 of pregnancy in goats and the relationship with the vascular endothelial growth factor (VEGF) immunolocalization. The placental morphometric variables: capillary area density, capill...

Journal: :Hypertension 1994
S Wolf O Arend K Schulte T H Ittel M Reim

Arterial hypertension is known to be an important risk factor for cerebral and cardiovascular disease. Previous studies in rats have demonstrated that changes in both capillary density and vessel diameter may contribute to increased vascular resistance in hypertension. In vivo studies of human subjects with essential hypertension revealed a reduction in the number of arterioles in the skin and ...

Journal: :The Journal of Japan Atherosclerosis Society 1990

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