Results 321 to 330 of about 177,764 (340)
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Cold vasoconstriction and vasodilatation
The Irish Journal of Medical Science, 19511. When the finger is immersed in water between 0° and 6°C. the initial vasoconstriction is usually, and the subsequent vasoconstrictions are occasionally, sudden in onset and complete in degree. 2. The initial vasodilatation is usually rapid in onset. 3.
A. D. M. Greenfield +2 more
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Cholinergic Vasoconstriction in the Eye
Journal of Ocular Pharmacology and Therapeutics, 1990Data is presented to support a physiologic vasoconstrictor function of the parasympathetic nervous system in the anterior uvea of the eye. Studies in rabbits, cats and monkeys demonstrate that stimulation of the parasympathetic nerve fibers running with the oculomotor nerve to the eye induces a reduction in blood flow of the iris and in rabbits in the ...
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Endothelin and Vasoconstriction
1991We investigated the effect of endothelin-1 (ET) on cytosolic free Ca2+ concentration ( [Ca2+]i) and intracellular Ca2+ store in vascular smooth muscle cells (VSMCs). Using quin2 microfluorometry, effects of ET on [Ca2+]i were investigated in rat aortic VSMCs in primary culture.
Hisashi Kai +3 more
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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 in toxemia
Neurology, 1987Three patients with toxemia developed acute neurologic deterioration postpartum. In all, cerebral angiography revealed widespread arterial vasoconstriction. Cerebral vasoconstriction may be an important cause of neurologic complications in toxemia.
K. L. Lewis +6 more
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Hypoxic Pulmonary Vasoconstriction
High Altitude Medicine & Biology, 2013Hypoxic 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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Cerebral Vasoconstriction Syndromes
Topics in Stroke Rehabilitation, 2004Stroke 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, 1974The 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, 1985In 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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Renal vasoconstriction in cirrhosis [PDF]
Hepatology, 1994 Paolo Angeli +6 more
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