Enhanced Contractile Mechanisms in Vasospasm
نویسندگان
چکیده
منابع مشابه
Enhanced contractile mechanisms in vasospasm: is endothelial dysfunction the whole story?
The importance of the endothelium in regulating vascular tone and reactivity is well recognized. The endothelium produces a variety of substances including nitric oxide (NO), prostaglandins, endothelin-1, and an unidentified hyperpolarization factor that control vascular tone, thrombus formation, platelet and leukocyte adhesion and aggregation, and cellular proliferation. Alterations in the syn...
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We previously suggested that activation of the protein kinase C-mediated contractile system may participate in the occurrence of chronic cerebral vasospasm. In the present study, we compared segments of normal beagle basilar arteries in vitro with segments of arteries undergoing chronic vasospasm to determine the responsiveness to various agonists such as serotonin, prostaglandin F2 alpha, and ...
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Rewarming patients after profound hypothermia may result in acute heart failure and high mortality (50-80%). However, the underlying pathophysiological mechanisms are largely unknown. We characterized cardiac contractile function in the temperature range of 15-30 degrees C by measuring the intracellular Ca(2+) concentration ([Ca(2+)](i)) and twitch force in intact left ventricular rat papillary...
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ژورنال
عنوان ژورنال: Circulation
سال: 2002
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.0000014120.90086.51