Hemodynamics alter arterial low-density lipoprotein metabolism.
Hemodynamics alter arterial low-density lipoprotein metabolism.
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血流动力学改变动脉低密度脂蛋白代谢。
DOI:
10.1067/mva.1989.13732
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发表时间:
1989
影响因子:
4.3
通讯作者:
Borovetz,HS
中科院分区:
文献类型:
--
作者:
Warty,VS;Calvo,WJ;Berceli,SA;Pham,SM;Durham,SJ;Tanksale,SK;Klein,EC;Herman,IM;Borovetz,HS
We have investigated the role of hemodynamic factors on low-density lipoprotein transport and metabolism in the intact arterial wall. Freshly excised canine carotid blood vessels were exposed to well-defined pulsatile flow in vitro for continuous periods up to 20 hours. We chose to impose the following hemodynamic conditions on our test carotid arteries: normotension, hypertension (at physiologic flow conditions), and hypertension coupled with elevated flow of canine serum perfusate. In several experiments the effect of endothelial denudation was examined in carotid arteries exposed to normotensive pulsatile flow. A trapped ligand method was used for quantitating low-density lipoprotein uptake and metabolism in the arterial wall. The distribution of both intact and degraded low-density lipoprotein fractions was determined from measurements of radiolabelled low-density lipoprotein activity within thin radial sections of perfused arteries. Our results suggest that both hypertensive hemodynamic simulations exacerbate the uptake of low-density lipoprotein within the arterial wall (by a factor of three to nine). The percentage of low-density lipoprotein that undergoes irreversible degradation falls from 41% under normotensive conditions to below 30% when hypertensive conditions are imposed, indicating that degradative processes are not proportionally elevated with the accelerated influx. A similar pattern is observed for deendothelialized vessels. (J Vasc Surg1989;10:392–9.)
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影响因子:
4.4
作者:
F. Sinigaglia;D. Scheidegger;G. Garotta;R. Scheper;M. Pletscher;A. Lanzavecchia
通讯作者:
A. Lanzavecchia
DOI:
10.1073/pnas.83.9.2914
发表时间:
1986
影响因子:
11.1
作者:
Weissmann,G;Azaroff,L;Davidson,S;Dunham,P
通讯作者:
Dunham,P
影响因子:
4.4
作者:
L. Bich;M. Dukovich;N. Peffer;A. Fauci;J. Kehrl;W. Greene
通讯作者:
W. Greene
影响因子:
4.4
作者:
S. Lipkowitz;W. Greene;A. Rubin;A. Novogrodsky;K. Stenzel
通讯作者:
K. Stenzel
DOI:
--
发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Modlin,RL;Mehra,V;Wong,L;Fujimiya,Y;Chang,WC;Horwitz,DA;Bloom,BR;Rea,TH;Pattengale,PK
通讯作者:
Pattengale,PK