Results 321 to 330 of about 172,620 (346)

Hypoxic Pulmonary Vasoconstriction

High Altitude Medicine & Biology, 2013
Hypoxic pulmonary vasoconstriction (HPV) continues to fascinate cardiopulmonary physiologists and clinicians since its definitive description in 1946. Hypoxic vasoconstriction exists in all vertebrate gas exchanging organs. This fundamental response of the pulmonary vasculature in air breathing animals has relevance to successful fetal transition to ...
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Hypoxic pulmonary vasoconstriction [PDF]

Essays in Biochemistry, 2007
HPV (hypoxic pulmonary vasoconstriction) is the critical and distinguishing characteristic of the arteries that feed the lung. In marked contrast, systemic arteries dilate in response to hypoxia to meet the metabolic demands of the tissues they supply.
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Cerebral Vasoconstriction Syndromes

Topics in Stroke Rehabilitation, 2004
Stroke from reversible cerebral arterial vasoconstriction has been described in a variety of conditions, including migraine, pregnancy, puerperium (postpartum angiopathy), use of vasoconstrictive drugs, Call-Fleming syndrome, and benign angiopathy of the central nervous system. Although vasoconstriction is an important cause of ischemic and hemorrhagic
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Various Vagaries of Vasoconstriction

Archives of Dermatology, 1974
The standard vasoconstrictor assay has been of proven value in ranking the potencies of topically applied corticosteroids from alcoholic solutions. Shortening the time of application, omitting occlusion, and using multiple reading times has allowed valuable observations to be made on the effective delivery of corticosteroids from their vehicles.
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Vasoconstriction and remodeling in pulmonary hypertension

Chest, 1985
In one group of sheep, Escherichia coli endotoxin was given intravenously three times per week for ten weeks, and in another group the cyclooxygenase inhibitor indomethacin was given subcutaneously two times per day for three weeks. Both groups developed the structural and functional changes of modest but sustained pulmonary hypertension and showed ...
Barbara Meyrick, Kenneth L. Brigham
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CEREBRAL SYMPATHETIC VASOCONSTRICTION AND EEG

Survey of Anesthesiology, 1957
Summary. 1 The influence of electrical stimulation of the cervical sympathetic nerves and the thoracic sympathetic chain as well as the central and peripheral parts of the cat vagi upon the cortical blood flow and the EEG has been investigated in unanesthetized (encephale isole) and lightly anaesthetized cats, sensitive to arousing stimuli.
B O Siesj, D. H. Ingvar, B. Holmqvist
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Reversible Cerebral Vasoconstriction Syndromes

2014
Reversible cerebral vasoconstriction syndrome (RCVS) is a term used to describe a group of conditions characterized by reversible segmental narrowing and dilatation of multiple intracranial arteries. Most patients present with an explosive-onset, severe (thunderclap) headache. Thunderclap headaches frequently recur over days to weeks.
A.B. Singhal, O. Kursun
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RhoGEF-mediated vasoconstriction in hypertension

Hypertension Research, 2013
Arterial hypertension is a common health problem that is a major risk factor for many diseases, including myocardial infarction and stroke.1, 2 The pathogenesis of arterial hypertension and the basic mechanisms of blood pressure control are still insufficiently understood.
Kozo Kaibuchi, Mikito Takefuji, Yoshimitsu Yura, Toyoaki Murohara   +3 more
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Modulation of Vasoconstriction by Clopidogrel and Ticlopidine

Thrombosis Research, 1998
Clopidogrel is an antiplatelet drug which has undergone extensive clinical trials in the management of stroke and other arterial disorders related to platelet activation. This agent is believed to produce the inhibition of ADP mediated direct and indirect actions leading to platelet adhesion/aggregation and other activation processes.
Debra Hoppensteadt, Li Hui Yang, Jawed Fareed   +2 more
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Reversible cerebral vasoconstriction syndrome

Journal of Clinical Neuroscience, 2009
Reversible cerebral vasoconstriction syndrome (RCVS) is an under-recognised condition. It is characterised by sudden and severe headaches (of "thunderclap" type) associated with multifocal reversible narrowing of the intracranial arteries on neuroradiology. The diagnosis is often established with the resolution of headaches and vasoconstriction.
Noel Saines, Beatrice Garcin, John Clouston   +2 more
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