Endothelium-dependent relaxation of human basilar arteries.
نویسندگان
چکیده
منابع مشابه
Endothelium-dependent relaxation of human basilar arteries.
We studied the effects of acetylcholine and calcium ionophore A23187 on human basilar artery rings. Among 11 arteries, both agents produced significant relaxations in five, A23187 but not acetylcholine caused a response in six, and neither agent was effective in four. After rubbing off the endothelium, the relaxations induced by both agents were significantly attenuated. Indomethacin (a cycloox...
متن کاملEndothelium-dependent relaxation to aggregating platelets in isolated basilar arteries of control and hypercholesterolemic pigs.
The role of the endothelium was examined in the response to aggregating platelets in cerebral arteries from normal and hypercholesterolemic animals. Male Yorkshire pigs were fed either a normal diet or a 2% high-cholesterol diet for 10 weeks. Endothelium-dependent responses were examined in vitro. In rings of basilar arteries from control animals aggregating platelets caused endothelium-depende...
متن کاملImpairment of endothelium-dependent relaxation in human basilar artery after subarachnoid hemorrhage.
BACKGROUND AND PURPOSE The goal of this study was to determine the alterations in vascular reactivity of human basilar artery after subarachnoid hemorrhage. METHODS Human basilar arteries were obtained from subjects who died within 1 day after subarachnoid hemorrhage and control subjects who died from causes other than brain involvement. Basilar artery strips were suspended for isometric tens...
متن کاملHistamine induces endothelium-dependent relaxation of bovine retinal arteries.
The effect of histamine on bovine isolated retinal small arteries (internal diameter, approximately 240 microns) was studied. Histamine induced a concentration-dependent relaxation in 43 of 53 vessels. The histamine-induced relaxation involves primarily activation of H1-receptors, with H2-receptors also affected as evidenced by the effect of selective histamine-receptor agonists and antagonists...
متن کاملDevelopment of endothelium-dependent relaxation in canine coronary collateral arteries.
BACKGROUND Little information exists regarding development of vasomotor control mechanisms during coronary collateral artery maturation. Therefore, we studied endothelium-dependent relaxation of canine collateral arteries isolated 2, 4, and 9 months after placement of an ameroid occluder around the proximal left circumflex coronary artery. RESULTS Collateral arteries isolated after 2 months e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Stroke
سال: 1989
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.20.9.1208